Signal transmission method and device and storage medium

Abstract

The invention provides a signal transmission method and device and a storage medium, and relates to the technical field of communication. The method comprises the following steps: receiving a first indication signal sent by network equipment and / or intermediate node equipment, wherein a first association relationship exists between the first indication signal and a first downlink data signal; and receiving the first downlink data signal sent by the network device and / or the intermediate node device based on the first indication signal and the first association relationship. According to the scheme provided by the invention, the power consumption of data signal transmission can be reduced, and low-power-consumption data signal transmission between the Internet of Things equipment and the network equipment or between the Internet of Things equipment and the intermediate node equipment is realized.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a signal transmission method, apparatus and storage medium. Background Technology

[0002] In 5G New Radio (NR), terminals can maintain time and frequency synchronization with network devices through synchronization signals, thereby enabling data transmission between terminals and network devices while maintaining synchronization.

[0003] With the development of communication technology, a new type of Internet of Things (IoT) device has emerged: Ambient IoT (A-IoT) devices. A-IoT devices have little or no power supply, characterized by low energy consumption and low cost. They are response devices based on backscattering / generating signals. Due to these characteristics, A-IoT devices cannot continuously synchronize with network devices. Therefore, how to achieve signal transmission with low-power IoT devices is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This application provides a signal transmission method, apparatus, and storage medium that can reduce the power consumption of data signal transmission and enable data signal transmission with low-power IoT devices.

[0005] In a first aspect, this application provides a signal transmission method applied to an Internet of Things (IoT) device, the method comprising:

[0006] Receive a first indication signal sent by a network device and / or an intermediate node device, wherein there is a first correlation relationship between the first indication signal and a first downlink data signal;

[0007] Based on the first indication signal and the first association relationship, the first downlink data signal sent by the network device and / or intermediate node device is received.

[0008] In one possible implementation, the first association includes at least one of the following:

[0009] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0010] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0011] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0012] The correlation between the data size of the first indication signal and the first downlink data signal.

[0013] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0014] The start time of receiving the first downlink data signal; and / or,

[0015] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0016] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0017] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0018] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0019] Orthogonal sequences;

[0020] Predefined sequence patterns;

[0021] Predefined bit patterns.

[0022] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0023] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0024] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0025] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0026] And / or,

[0027] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0028] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0029] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0030] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0031] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0032] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0033] At least one first preamble signal is transmitted on the configured bit stream;

[0034] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0035] At least one first preamble signal is transmitted on its respective time-domain resource.

[0036] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0037] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0038] And / or,

[0039] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0040] In one possible implementation, the first downlink transmission duration satisfies:

[0041] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0042] And / or,

[0043] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0044] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0045] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0046] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0047] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0048] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0049] Downlink data signal size information;

[0050] Information on the encoding method of downlink data signals;

[0051] Modulation information of downlink data signals;

[0052] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0053] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0054] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0055] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0056] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0057] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0058] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0059] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0060] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0061] And / or,

[0062] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0063] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0064] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0065] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0066] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0067] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0068] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0069] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0070] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0071] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0072] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0073] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0074] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0075] And / or,

[0076] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0077] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0078] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0079] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0080] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0081] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0082] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0083] Secondly, this application provides a signal transmission method applied to network devices and / or intermediate node devices, the method comprising:

[0084] Send a first indication signal to an IoT device, wherein the first indication signal and a first downlink data signal have a first correlation relationship;

[0085] Based on the first indication signal and the first association relationship, the first downlink data signal is sent to the IoT device.

[0086] In one possible implementation, the first association includes at least one of the following:

[0087] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0088] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0089] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0090] The correlation between the data size of the first indication signal and the first downlink data signal.

[0091] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0092] The start time of receiving the first downlink data signal; and / or,

[0093] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0094] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0095] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0096] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0097] Orthogonal sequences;

[0098] Predefined sequence patterns;

[0099] Predefined bit patterns.

[0100] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0101] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0102] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0103] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0104] And / or,

[0105] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0106] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0107] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0108] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0109] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0110] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0111] At least one first preamble signal is transmitted on the configured bit stream;

[0112] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0113] At least one first preamble signal is transmitted on its respective time-domain resource.

[0114] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0115] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0116] And / or,

[0117] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0118] In one possible implementation, the first downlink transmission duration satisfies:

[0119] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0120] And / or,

[0121] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0122] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0123] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0124] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0125] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0126] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0127] Downlink data signal size information;

[0128] Information on the encoding method of downlink data signals;

[0129] Modulation information of downlink data signals;

[0130] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0131] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0132] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0133] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0134] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0135] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0136] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0137] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0138] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0139] And / or,

[0140] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0141] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0142] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0143] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0144] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0145] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0146] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0147] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0148] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0149] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0150] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0151] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0152] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0153] And / or,

[0154] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0155] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0156] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0157] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0158] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0159] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0160] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0161] Thirdly, this application provides a signal transmission method applied to Internet of Things (IoT) devices, the method comprising:

[0162] Send a second indication signal to network devices and / or intermediate node devices, wherein the second indication signal has a second correlation with the first uplink data signal;

[0163] Based on the second indication signal and the second association relationship, the first uplink data signal is sent to the network device and / or intermediate node device.

[0164] In one possible implementation, the second association includes at least one of the following:

[0165] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0166] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0167] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0168] The correlation between the data size of the second indication signal and the first uplink data signal.

[0169] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0170] The start time of receiving the first uplink data signal; and / or,

[0171] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0172] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0173] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0174] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0175] Orthogonal sequences;

[0176] Predefined sequence patterns;

[0177] Predefined bit patterns.

[0178] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0179] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0180] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0181] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0182] And / or,

[0183] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0184] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0185] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0186] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0187] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0188] In one possible implementation, at least one of the following conditions is met:

[0189] At least one second preamble signal is transmitted on the configured bit stream;

[0190] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0191] At least one second preamble signal is transmitted on its respective time-domain resource.

[0192] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0193] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0194] And / or,

[0195] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0196] In one possible implementation, the first uplink transmission duration satisfies:

[0197] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0198] And / or,

[0199] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0200] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0201] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0202] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0203] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0204] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0205] Uplink data signal size information;

[0206] Information on the encoding method of uplink data signals;

[0207] Modulation information of the uplink data signal;

[0208] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0209] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0210] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0211] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0212] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0213] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0214] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0215] The encoding parameter of the second indication signal is the minimum value among the encoding parameters of the multiple uplink data signals;

[0216] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0217] And / or,

[0218] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0219] The coding type of the third component is the same as that of the first uplink data signal;

[0220] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0221] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0222] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0223] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0224] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0225] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0226] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0227] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0228] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0229] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0230] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0231] And / or,

[0232] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0233] The modulation type of the third component is the same as that of the first uplink data signal;

[0234] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0235] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0236] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0237] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0238] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0239] Fourthly, this application provides a signal transmission method applied to network devices and / or intermediate node devices, the method comprising:

[0240] Receive a second indication signal sent by an IoT device, wherein the second indication signal has a second correlation with the first uplink data signal;

[0241] Based on the second indication signal and the second association relationship, the first uplink data signal sent by the IoT device is received.

[0242] In one possible implementation, the second association includes at least one of the following:

[0243] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0244] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0245] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0246] The correlation between the data size of the second indication signal and the first uplink data signal.

[0247] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0248] The start time of receiving the first uplink data signal; and / or,

[0249] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0250] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0251] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0252] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0253] Orthogonal sequences;

[0254] Predefined sequence patterns;

[0255] Predefined bit patterns.

[0256] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0257] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0258] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0259] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0260] And / or,

[0261] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0262] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0263] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0264] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0265] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0266] In one possible implementation, at least one of the following conditions is met:

[0267] At least one second preamble signal is transmitted on the configured bit stream;

[0268] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0269] At least one second preamble signal is transmitted on its respective time-domain resource.

[0270] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0271] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0272] And / or,

[0273] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0274] In one possible implementation, the first uplink transmission duration satisfies:

[0275] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0276] And / or,

[0277] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0278] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0279] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0280] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0281] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0282] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0283] Uplink data signal size information;

[0284] Information on the encoding method of uplink data signals;

[0285] Modulation information of the uplink data signal;

[0286] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0287] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0288] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0289] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0290] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0291] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0292] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0293] The encoding parameters of the second indication signal are the minimum values ​​among the encoding parameters of the multiple uplink data signals;

[0294] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0295] And / or,

[0296] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0297] The coding type of the third component is the same as that of the first uplink data signal;

[0298] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0299] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0300] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0301] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0302] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0303] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0304] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0305] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0306] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0307] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0308] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0309] And / or,

[0310] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0311] The modulation type of the third component is the same as that of the first uplink data signal;

[0312] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0313] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0314] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0315] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0316] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0317] Fifthly, this application provides a signal transmission device for use in Internet of Things (IoT) devices, the device comprising: a memory, a transceiver, and a processor.

[0318] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0319] Receive a first indication signal sent by a network device and / or an intermediate node device, wherein there is a first correlation relationship between the first indication signal and a first downlink data signal;

[0320] Based on the first indication signal and the first association relationship, the first downlink data signal sent by the network device and / or intermediate node device is received.

[0321] In one possible implementation, the first association includes at least one of the following:

[0322] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0323] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0324] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0325] The correlation between the data size of the first indication signal and the first downlink data signal.

[0326] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0327] The start time of receiving the first downlink data signal; and / or,

[0328] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0329] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0330] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0331] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0332] Orthogonal sequences;

[0333] Predefined sequence patterns;

[0334] Predefined bit patterns.

[0335] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0336] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0337] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0338] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0339] And / or,

[0340] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0341] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0342] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0343] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0344] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0345] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0346] At least one first preamble signal is transmitted on the configured bit stream;

[0347] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0348] At least one first preamble signal is transmitted on its respective time-domain resource.

[0349] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0350] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0351] And / or,

[0352] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0353] In one possible implementation, the first downlink transmission duration satisfies:

[0354] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0355] And / or,

[0356] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0357] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0358] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0359] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0360] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0361] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0362] Downlink data signal size information;

[0363] Information on the encoding method of downlink data signals;

[0364] Modulation information of downlink data signals;

[0365] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0366] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0367] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0368] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0369] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0370] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0371] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0372] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0373] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0374] And / or,

[0375] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0376] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0377] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0378] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0379] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0380] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0381] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0382] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0383] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0384] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0385] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0386] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0387] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0388] And / or,

[0389] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0390] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0391] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0392] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0393] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0394] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0395] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0396] Sixthly, this application provides a signal transmission device applied to network equipment and / or intermediate node equipment, the device comprising: a memory, a transceiver, and a processor.

[0397] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0398] Send a first indication signal to an IoT device, wherein the first indication signal and a first downlink data signal have a first correlation relationship;

[0399] Based on the first indication signal and the first association relationship, the first downlink data signal is sent to the IoT device.

[0400] In one possible implementation, the first association includes at least one of the following:

[0401] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0402] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0403] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0404] The correlation between the data size of the first indication signal and the first downlink data signal.

[0405] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0406] The start time of receiving the first downlink data signal; and / or,

[0407] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0408] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0409] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0410] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0411] Orthogonal sequences;

[0412] Predefined sequence patterns;

[0413] Predefined bit patterns.

[0414] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0415] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0416] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0417] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0418] And / or,

[0419] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0420] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0421] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0422] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0423] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0424] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0425] At least one first preamble signal is transmitted on the configured bit stream;

[0426] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0427] At least one first preamble signal is transmitted on its respective time-domain resource.

[0428] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0429] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0430] And / or,

[0431] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0432] In one possible implementation, the first downlink transmission duration satisfies:

[0433] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0434] And / or,

[0435] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0436] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0437] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0438] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0439] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0440] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0441] Downlink data signal size information;

[0442] Information on the encoding method of downlink data signals;

[0443] Modulation information of downlink data signals;

[0444] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0445] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0446] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0447] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0448] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0449] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0450] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0451] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0452] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0453] And / or,

[0454] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0455] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0456] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0457] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0458] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0459] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0460] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0461] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0462] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0463] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0464] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0465] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0466] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0467] And / or,

[0468] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0469] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0470] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0471] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0472] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0473] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0474] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0475] Seventhly, this application provides a signal transmission device for use in Internet of Things (IoT) devices, the device comprising: a memory, a transceiver, and a processor.

[0476] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0477] Send a second indication signal to network devices and / or intermediate node devices, wherein the second indication signal has a second correlation with the first uplink data signal;

[0478] Based on the second indication signal and the second association relationship, the first uplink data signal is sent to the network device and / or intermediate node device.

[0479] In one possible implementation, the second association includes at least one of the following:

[0480] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0481] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0482] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0483] The correlation between the data size of the second indication signal and the first uplink data signal.

[0484] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0485] The start time of receiving the first uplink data signal; and / or,

[0486] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0487] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0488] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0489] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0490] Orthogonal sequences;

[0491] Predefined sequence patterns;

[0492] Predefined bit patterns.

[0493] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0494] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0495] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0496] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0497] And / or,

[0498] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0499] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0500] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0501] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0502] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0503] In one possible implementation, at least one of the following conditions is met:

[0504] At least one second preamble signal is transmitted on the configured bit stream;

[0505] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0506] At least one second preamble signal is transmitted on its respective time-domain resource.

[0507] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0508] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0509] And / or,

[0510] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0511] In one possible implementation, the first uplink transmission duration satisfies:

[0512] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0513] And / or,

[0514] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0515] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0516] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0517] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0518] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0519] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0520] Uplink data signal size information;

[0521] Information on the encoding method of uplink data signals;

[0522] Modulation information of the uplink data signal;

[0523] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0524] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0525] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0526] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0527] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0528] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0529] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0530] The encoding parameters of the second indication signal are the minimum values ​​among the encoding parameters of the multiple uplink data signals;

[0531] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0532] And / or,

[0533] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0534] The coding type of the third component is the same as that of the first uplink data signal;

[0535] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0536] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0537] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0538] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0539] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0540] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0541] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0542] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0543] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0544] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0545] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0546] And / or,

[0547] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0548] The modulation type of the third component is the same as that of the first uplink data signal;

[0549] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0550] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0551] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0552] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0553] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0554] Eighthly, this application provides a signal transmission device applied to network equipment and / or intermediate node equipment, the device comprising: a memory, a transceiver, and a processor.

[0555] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0556] Receive a second indication signal sent by an IoT device, wherein the second indication signal has a second correlation with the first uplink data signal;

[0557] Based on the second indication signal and the second association relationship, the first uplink data signal sent by the IoT device is received.

[0558] In one possible implementation, the second association includes at least one of the following:

[0559] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0560] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0561] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0562] The correlation between the data size of the second indication signal and the first uplink data signal.

[0563] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0564] The start time of receiving the first uplink data signal; and / or,

[0565] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0566] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0567] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0568] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0569] Orthogonal sequences;

[0570] Predefined sequence patterns;

[0571] Predefined bit patterns.

[0572] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0573] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0574] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0575] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0576] And / or,

[0577] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0578] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0579] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0580] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0581] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0582] In one possible implementation, at least one of the following conditions is met:

[0583] At least one second preamble signal is transmitted on the configured bit stream;

[0584] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0585] At least one second preamble signal is transmitted on its respective time-domain resource.

[0586] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0587] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0588] And / or,

[0589] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0590] In one possible implementation, the first uplink transmission duration satisfies:

[0591] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0592] And / or,

[0593] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0594] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0595] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0596] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0597] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0598] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0599] Uplink data signal size information;

[0600] Information on the encoding method of uplink data signals;

[0601] Modulation information of the uplink data signal;

[0602] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0603] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0604] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0605] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0606] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0607] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0608] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0609] The encoding parameter of the second indication signal is the minimum value among the encoding parameters of the multiple uplink data signals;

[0610] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0611] And / or,

[0612] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0613] The coding type of the third component is the same as that of the first uplink data signal;

[0614] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0615] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0616] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0617] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0618] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0619] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0620] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0621] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0622] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0623] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0624] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0625] And / or,

[0626] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0627] The modulation type of the third component is the same as that of the first uplink data signal;

[0628] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0629] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0630] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0631] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0632] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0633] Ninthly, this application provides a signal transmission device for use in Internet of Things (IoT) devices, the device comprising:

[0634] The first receiving module is configured to receive a first indication signal sent by a network device and / or an intermediate node device, wherein the first indication signal has a first correlation relationship with a first downlink data signal;

[0635] The second receiving module is configured to receive the first downlink data signal sent by the network device and / or intermediate node device based on the first indication signal and the first association relationship.

[0636] In one possible implementation, the first association includes at least one of the following:

[0637] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0638] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0639] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0640] The correlation between the data size of the first indication signal and the first downlink data signal.

[0641] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0642] The start time of receiving the first downlink data signal; and / or,

[0643] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0644] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0645] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0646] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0647] Orthogonal sequences;

[0648] Predefined sequence patterns;

[0649] Predefined bit patterns.

[0650] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0651] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0652] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0653] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0654] And / or,

[0655] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0656] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0657] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0658] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0659] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0660] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0661] At least one first preamble signal is transmitted on the configured bit stream;

[0662] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0663] At least one first preamble signal is transmitted on its respective time-domain resource.

[0664] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0665] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0666] And / or,

[0667] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0668] In one possible implementation, the first downlink transmission duration satisfies:

[0669] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0670] And / or,

[0671] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0672] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0673] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0674] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0675] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0676] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0677] Downlink data signal size information;

[0678] Information on the encoding method of downlink data signals;

[0679] Modulation information of downlink data signals;

[0680] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0681] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0682] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0683] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0684] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0685] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0686] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0687] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0688] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0689] And / or,

[0690] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0691] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0692] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0693] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0694] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0695] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0696] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0697] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0698] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0699] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0700] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0701] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0702] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0703] And / or,

[0704] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0705] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0706] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0707] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0708] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0709] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0710] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0711] Tenthly, this application provides a signal transmission device applied to network equipment and / or intermediate node equipment, the device comprising:

[0712] The first transmitting module is configured to transmit a first indication signal to an Internet of Things (IoT) device, wherein the first indication signal and a first downlink data signal have a first correlation relationship.

[0713] The second transmitting module is used to transmit the first downlink data signal to the IoT device based on the first indication signal and the first association relationship.

[0714] In one possible implementation, the first association includes at least one of the following:

[0715] The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal;

[0716] The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal;

[0717] The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal;

[0718] The correlation between the data size of the first indication signal and the first downlink data signal.

[0719] In one possible implementation, the transmission time information of the first downlink data signal includes:

[0720] The start time of receiving the first downlink data signal; and / or,

[0721] The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

[0722] In one possible implementation, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[0723] In one possible implementation, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

[0724] In one possible implementation, the first preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0725] Orthogonal sequences;

[0726] Predefined sequence patterns;

[0727] Predefined bit patterns.

[0728] In one possible implementation, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0729] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal;

[0730] The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[0731] The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals;

[0732] And / or,

[0733] The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following:

[0734] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal;

[0735] The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1;

[0736] The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals;

[0737] Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0738] In one possible implementation, at least one first preamble signal satisfies at least one of the following:

[0739] At least one first preamble signal is transmitted on the configured bit stream;

[0740] At least one first preamble signal is transmitted on its respective frequency domain resource;

[0741] At least one first preamble signal is transmitted on its respective time-domain resource.

[0742] In one possible implementation, the transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein:

[0743] The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[0744] And / or,

[0745] The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[0746] In one possible implementation, the first downlink transmission duration satisfies:

[0747] M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number;

[0748] And / or,

[0749] N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[0750] In one possible implementation, the first downlink data signal is one of a plurality of downlink data signals corresponding to the downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following:

[0751] The total transmission time of the downlink data packets includes at least one first downlink transmission time;

[0752] The total transmission time of the downlink data packet includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal;

[0753] The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the multiple downlink data signals.

[0754] In one possible implementation, for each downlink data signal, the first control signaling includes at least one of the following:

[0755] Downlink data signal size information;

[0756] Information on the encoding method of downlink data signals;

[0757] Modulation information of downlink data signals;

[0758] The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals;

[0759] The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among multiple downlink data signals.

[0760] In one possible implementation, for each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

[0761] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0762] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal;

[0763] The encoding parameters of the first indication signal are the same as those of the first downlink data signal;

[0764] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1;

[0765] The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0766] The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0767] And / or,

[0768] The first indication signal includes a first component and at least one second component. The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following:

[0769] The encoding type of the first component is the same as the encoding type of the first downlink data signal;

[0770] The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal;

[0771] The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1;

[0772] The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals;

[0773] The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals;

[0774] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0775] In one possible implementation, the modulation scheme includes a modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0776] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal;

[0777] The modulation parameters of the first indication signal are the same as those of the first downlink data signal;

[0778] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1;

[0779] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals;

[0780] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals;

[0781] And / or,

[0782] The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following:

[0783] The modulation type of the first component is the same as the modulation type of the first downlink data signal;

[0784] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal;

[0785] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1;

[0786] The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals;

[0787] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals;

[0788] Among them, the multiple downlink data signals are the downlink data signals corresponding to the multiple downlink data in the downlink data packet, and the first downlink data signal is one of the multiple downlink data signals.

[0789] Eleventhly, this application provides a signal transmission device for use in Internet of Things (IoT) devices, the device comprising:

[0790] The third sending module is used to send a second indication signal to the network device and / or intermediate node device, wherein the second indication signal has a second correlation relationship with the first uplink data signal;

[0791] The fourth sending module is used to send the first uplink data signal to the network device and / or intermediate node device based on the second indication signal and the second association relationship.

[0792] In one possible implementation, the second association includes at least one of the following:

[0793] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0794] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0795] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0796] The correlation between the data size of the second indication signal and the first uplink data signal.

[0797] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0798] The start time of receiving the first uplink data signal; and / or,

[0799] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0800] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0801] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0802] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0803] Orthogonal sequences;

[0804] Predefined sequence patterns;

[0805] Predefined bit patterns.

[0806] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0807] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0808] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0809] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0810] And / or,

[0811] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0812] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0813] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0814] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0815] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0816] In one possible implementation, at least one of the following conditions is met:

[0817] At least one second preamble signal is transmitted on the configured bit stream;

[0818] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0819] At least one second preamble signal is transmitted on its respective time-domain resource.

[0820] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0821] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0822] And / or,

[0823] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0824] In one possible implementation, the first uplink transmission duration satisfies:

[0825] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0826] And / or,

[0827] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0828] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0829] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0830] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0831] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0832] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0833] Uplink data signal size information;

[0834] Information on the encoding method of uplink data signals;

[0835] Modulation information of the uplink data signal;

[0836] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0837] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0838] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0839] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0840] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0841] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0842] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0843] The encoding parameter of the second indication signal is the minimum value among the encoding parameters of the multiple uplink data signals;

[0844] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0845] And / or,

[0846] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0847] The coding type of the third component is the same as that of the first uplink data signal;

[0848] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0849] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0850] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0851] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0852] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0853] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0854] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0855] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0856] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0857] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0858] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0859] And / or,

[0860] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0861] The modulation type of the third component is the same as that of the first uplink data signal;

[0862] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0863] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0864] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0865] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0866] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0867] In a twelfth aspect, this application provides a signal transmission device applied to network equipment and / or intermediate node equipment, the device comprising:

[0868] The third receiving module is used to receive a second indication signal sent by an IoT device, wherein there is a second correlation relationship between the second indication signal and the first uplink data signal.

[0869] The fourth receiving module is used to receive the first uplink data signal sent by the IoT device based on the second indication signal and the second association relationship.

[0870] In one possible implementation, the second association includes at least one of the following:

[0871] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal;

[0872] The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal;

[0873] The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal;

[0874] The correlation between the data size of the second indication signal and the first uplink data signal.

[0875] In one possible implementation, the transmission time information of the first uplink data signal includes:

[0876] The start time of receiving the first uplink data signal; and / or,

[0877] The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

[0878] In one possible implementation, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[0879] In one possible implementation, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[0880] In one possible implementation, the second preamble signal is a binary bitstream, wherein the bitstream is any of the following:

[0881] Orthogonal sequences;

[0882] Predefined sequence patterns;

[0883] Predefined bit patterns.

[0884] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0885] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[0886] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[0887] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[0888] And / or,

[0889] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[0890] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[0891] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[0892] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[0893] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0894] In one possible implementation, at least one of the following conditions is met:

[0895] At least one second preamble signal is transmitted on the configured bit stream;

[0896] At least one second preamble signal is transmitted on its respective frequency domain resource;

[0897] At least one second preamble signal is transmitted on its respective time-domain resource.

[0898] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[0899] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[0900] And / or,

[0901] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[0902] In one possible implementation, the first uplink transmission duration satisfies:

[0903] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[0904] And / or,

[0905] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[0906] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[0907] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[0908] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[0909] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[0910] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[0911] Uplink data signal size information;

[0912] Information on the encoding method of uplink data signals;

[0913] Modulation information of the uplink data signal;

[0914] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[0915] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[0916] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[0917] In one possible implementation, the encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0918] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[0919] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[0920] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[0921] The encoding parameters of the second indication signal are the minimum values ​​among the encoding parameters of the multiple uplink data signals;

[0922] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[0923] And / or,

[0924] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[0925] The coding type of the third component is the same as that of the first uplink data signal;

[0926] The encoding parameters of the third component are the same as those of the first uplink data signal;

[0927] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[0928] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[0929] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[0930] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0931] In one possible implementation, the modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0932] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[0933] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[0934] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[0935] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[0936] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[0937] And / or,

[0938] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[0939] The modulation type of the third component is the same as that of the first uplink data signal;

[0940] The modulation parameters of the third component are the same as those of the first uplink data signal;

[0941] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[0942] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[0943] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[0944] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[0945] In a thirteenth aspect, this application provides a non-transitory readable storage medium storing a computer program for causing a processor to execute the method of any one of the first to fourth aspects.

[0946] The signal transmission method provided in this application embodiment involves an IoT device first receiving a first indication signal sent by a network device and / or an intermediate node device. A first correlation exists between the first indication signal and a first downlink data signal. Then, based on the first indication signal and the first correlation, the IoT device receives the first downlink data signal sent by the network device and / or the intermediate node device. Because of the first correlation between the first indication signal and the first downlink data signal, the IoT device can receive the first downlink data signal simply by combining the first correlation after receiving the first indication signal. This eliminates the need for multiple interactions between the IoT device and the network device, or for the IoT device and the intermediate node device to achieve and maintain synchronization during data signal transmission. The downlink data signal transmission consumes less power and is suitable for data signal transmission in low-power A-IoT devices.

[0947] It should be understood that the description in the foregoing summary section is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0948] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0949] Figure 1 This is a schematic diagram of an OOK-based radio frequency receiver structure;

[0950] Figure 2 This is a schematic diagram of a zero-IF receiver structure based on OOK;

[0951] Figure 3 This is a schematic diagram of an intermediate frequency receiver structure based on OOK;

[0952] Figure 4 This is a schematic diagram of an A-IoT response communication method.

[0953] Figure 5 Flowchart of the signal transmission method provided in the embodiments of this application Figure 1 ;

[0954] Figure 6 A schematic diagram of the indication signals and data signals provided in the embodiments of this application. Figure 1 ;

[0955] Figure 7A schematic diagram of the indication signals and data signals provided in the embodiments of this application. Figure 2 ;

[0956] Figure 8 A schematic diagram showing the correspondence between the transmission time unit lengths of the preamble signal and the downlink data signal provided in the embodiments of this application;

[0957] Figure 9 A schematic diagram of the first control signaling provided for embodiments of this application. Figure 1 ;

[0958] Figure 10 A schematic diagram of the first control signaling provided for embodiments of this application. Figure 2 ;

[0959] Figure 11 Flowchart of the signal transmission method provided in the embodiments of this application Figure 2 ;

[0960] Figure 12 Schematic diagram of the signal transmission device provided in the embodiments of this application Figure 1 ;

[0961] Figure 13 Schematic diagram of the signal transmission device provided in the embodiments of this application Figure 2 ;

[0962] Figure 14 Schematic diagram of the signal transmission device provided in the embodiments of this application Figure 3 ;

[0963] Figure 15 Schematic diagram of the signal transmission device provided in the embodiments of this application Figure 4 ;

[0964] Figure 16 This is a schematic diagram of the structure of the signal transmission device 160 provided in the embodiments of this application;

[0965] Figure 17 This is a schematic diagram of the structure of the signal transmission device 170 provided in the embodiments of this application;

[0966] Figure 18 This is a schematic diagram of the structure of the signal transmission device 180 provided in the embodiments of this application;

[0967] Figure 19 This is a schematic diagram of the structure of the signal transmission device 190 provided in an embodiment of this application. Detailed Implementation

[0968] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0969] In the embodiments of this application, the term "at least one" refers to one or more, "multiple" refers to two or more, and other quantifiers are similar.

[0970] The terms "first," "second," etc., used in the embodiments of this application are for illustrative purposes and to distinguish the objects being described. They do not indicate any order and do not imply any special limitation on the number of objects in the embodiments of this application. They do not constitute any limitation on the embodiments of this application.

[0971] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0972] This application provides a signal transmission method, apparatus, and storage medium that receives data signals by means of the correlation between indication signals and data signals, resulting in low power consumption during data signal transmission.

[0973] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0974] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G systems (5GS). These systems can use NTN technology to provide cellular coverage, but this application does not limit this.

[0975] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0976] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0977] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0978] In NR, terminals can maintain synchronization with network devices through synchronization signals. Synchronization signals include the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS), which are used by the terminal to obtain downlink synchronization from the network devices.

[0979] The primary function of the PSS (Physical Cell Sequence) is to obtain time and frequency synchronization, exhibiting good autocorrelation and frequency offset resistance. The primary function of the SSS (Segmented Cell Sequence) is to obtain residual information about the cell ID; therefore, good cross-correlation is required in its design. For each PSS, the SSS consists of 336 Gold sequences of length 127; the SSS sequences differ for different PSSs. Thanks to the good cross-correlation properties of the Gold sequences, the NR SSS outperforms the LTE SSS in both Physical Cell Identifier (PCID) detection probability and false detection probability. Both the SSS and PSS share the same single-antenna port, and the SSS uses Binary Phase Shift Keying (BPSK) modulation.

[0980] Currently, the process by which a terminal obtains synchronization with network devices through synchronization signals involves interaction between the terminal and the network devices. After obtaining synchronization, it is also necessary to maintain synchronization through interaction. The above process consumes a lot of energy from the terminal.

[0981] Currently, to meet the needs of some low-power devices, a new type of IoT device has been defined, namely A-IoT devices, which are low-complexity, low-cost, and low-power low-end IoT devices. A-IoT devices have little or no power supply, and are characterized by low energy consumption and low cost.

[0982] Based on whether A-IoT devices have energy storage capabilities and the ability to generate signals independently, 3GPP classifies A-IoT devices into three categories: Device A, Device B, and Device C.

[0983] Device A: It has no energy storage capacity and no ability to generate signals independently. It transmits signals through backscatter.

[0984] Device B: It has energy storage capacity but no independent signal generation capability. It transmits signals through backscattering, and the stored energy can be used to amplify the power of the backscattered signal.

[0985] Device C: It has energy storage capacity, independent signal generation capability, and uses radio frequency devices for signal transmission.

[0986] Backscatter communication is achieved through a backscatter communication system. This system consists of an excitation signal source and a signal reflection device. The excitation signal source may include, for example, a reader, and the signal reflection device may include, for example, a reflective tag. The reader generates the radio frequency (RF) excitation signal, and the reflective tag consists of a device capable of reflecting RF signals. The reader sends an RF signal to the reflective tag, which receives the signal from the excitation signal source and reflects it back. By changing the load impedance of the reflective tag's antenna, information is modulated into the backscattered signal. When the reflection coefficient is configured as a first reflection coefficient, the energy of the excitation signal is completely absorbed by the tag antenna; when the reflection coefficient is configured as a second reflection coefficient, the excitation signal is completely reflected; and when the reflection coefficient is configured as a third reflection coefficient, the excitation signal is partially absorbed and partially reflected.

[0987] The above embodiments introduced the types of A-IoT devices. The following, with reference to the accompanying drawings, describes possible receiver architectures for A-IoT devices. For A-IoT devices, the receiver structure is extremely simple, and may include, for example, an on-off keying (OOK) based radio frequency receiver, an OOK-based zero-IF receiver, an OOK-based intermediate frequency receiver, etc.

[0988] Figure 1 This is a schematic diagram of an OOK-based radio frequency receiver structure, as shown below. Figure 1As shown, the OOK-based RF receiver sequentially includes a matching network, a radio frequency band-pass filter (RF BPF), a radio frequency low noise amplifier (RF LNA), a radio frequency envelope detector, a baseband amplifier (BB AMP), a baseband low-pass filter (BB LPF), an analog-to-digital converter (ADC), and a digital baseband processor.

[0989] Figure 2 This is a schematic diagram of a zero-IF receiver structure based on OOK, as shown below. Figure 2 As shown, an OOK-based zero-IF receiver sequentially includes a matching network, an RF BPF, an RF LNA, a mixer, a BB AMP, a BB LPF or BPF, an ADC, and a digital baseband processor. The received signal is processed sequentially through these components, and the mixer's input also includes the local oscillator (LO) frequency signal.

[0990] Figure 3 This is a schematic diagram of an intermediate frequency receiver structure based on OOK, as shown below. Figure 3 As shown, the OOK-based intermediate frequency (IF) receiver sequentially includes a matching network, an RF BPF, an RF LNA, a mixer, an IF amplifier (IF AMP), an IF band-pass filter (IFBPF), an IF envelope detector (IF envelope detector), a BB AMP, a BB LPF, an ADC, and a digital baseband processor. The received signal is processed sequentially through these components, and the mixer's input also includes the LO signal.

[0991] like Figures 1 to 3As shown, for A-IoT devices, due to their extremely simple receiver structure, A-IoT devices have the characteristics of low power consumption, low complexity, and no or limited power supply. A-IoT devices cannot use the time-frequency offset synchronization method of NR system to transmit signals, that is, to estimate the time-frequency offset of reference signals, such as synchronization signaling blocks (SSBs).

[0992] Figure 4 This is a schematic diagram of an A-IoT response communication method, such as... Figure 4 As shown, a network device or intermediate node sends an inquiry signal (11111111101111100001110000) to an A-IoT device. The A-IoT device will respond to the inquiry signal based on the carrier's pre-configuration / pre-programming function, i.e., the response signal (10001111101110111101110100). Combined with... Figure 4 As can be seen, the transmission method of A-IoT devices is very different from that of NR devices. For example, an A-IoT device is a response device based on backscattering / generating signals. The response signal from the response device depends on the excitation signal and push notification from network devices or intermediate nodes.

[0993] Unlike interactive terminal devices, based on the characteristics of A-IoT devices, on the one hand, A-IoT devices cannot keep synchronized with network devices, and on the other hand, A-IoT devices do not have the energy to process periodic synchronization signals.

[0994] Considering the design limitations of timing and synchronization in A-IoT devices, A-IoT communication can be viewed as asynchronous communication. In an asynchronous system, the receiver does not have precise timing for receiving signals. At the receiver, the A-IoT device will need to obtain the timing from the received signal at the start of the transmission time interval. The synchronization signal design for A-IoT devices can be directly embedded in the physical transmission channel or signal.

[0995] For downlink synchronization signals used for timing acquisition of A-IoT devices, preamble signals for timing acquisition and network synchronization can be included in the Physical Downlink Interrogations Channel (PDICH). The preamble signals can be allocated at the start of A-IoT data transmission for timing acquisition of the downlink channel, network synchronization, and detection of interrogation signals from A-IoT devices.

[0996] For uplink synchronization signal timing acquisition at the reader (network device or intermediate node) receiving A-IoT device response signals, a preamble for timing acquisition and synchronization can be included in the Physical Uplink Response Channel (PURCH). The preamble can be assigned at the beginning of the backscattered / generated signal for the receiver to detect the timing of the received signal used for information decoding.

[0997] Currently, only the classification, characteristics, topology, and application scenarios of A-IoT devices are defined, without addressing the specific synchronization process and the implementation of synchronization signals. Therefore, this application provides a signal transmission method to address the signal transmission requirements of A-IoT devices with low power consumption and low complexity needs.

[0998] Figure 5 Flowchart of the signal transmission method provided in the embodiments of this application Figure 1 This method is applied to IoT devices, such as Figure 5 As shown, the method includes:

[0999] S51, receive a first indication signal sent by a network device and / or an intermediate node device, wherein there is a first correlation relationship between the first indication signal and the first downlink data signal.

[1000] In this embodiment, the IoT device may be, for example, a low-power A-IoT device. The intermediate node device may be, for example, a terminal or other node device.

[1001] The network device and / or intermediate node device configures or generates a first indication signal and sends the first indication signal to the IoT device. The first indication signal is obtained by encoding and modulating a corresponding sequence (e.g., a preamble sequence).

[1002] There is a first correlation between the first indication signal and the first downlink data signal. Based on the first indication signal, information related to the first downlink data signal can be determined for subsequent reception of the first downlink data signal. The first correlation and the first indication signal may, for example, indicate the transmission time information of the first downlink data signal, the encoding method of the first downlink data signal, the modulation method of the first downlink data signal, the data size of the first downlink data signal, and so on.

[1003] Optionally, the first indication signal may also be called a synchronization signal, timing signal, synchronization timing signal, downlink synchronization signal, downlink timing signal, downlink synchronization timing signal, or other possible names, which are not limited in this application embodiment.

[1004] S52, based on the first indication signal and the first association relationship, receives the first downlink data signal sent by the network device and / or intermediate node device.

[1005] Taking a network device as an example of a device that communicates with an IoT device, after the network device sends a first indication signal, the network device sends a first downlink data signal to the IoT device based on the first indication signal and the first association relationship. Correspondingly, the IoT device receives the first downlink data signal sent by the network device based on the first indication signal and the first association relationship.

[1006] For example, if the first association relationship and the first indication signal indicate the transmission time information of the first downlink data signal, then the IoT device can know when to receive the first downlink data signal; if the first association relationship and the first indication signal indicate the encoding method of the first downlink data signal, then the IoT device can decode the first downlink data signal according to the encoding method; if the first association relationship and the first indication signal indicate the modulation method of the first downlink data signal, then the IoT device can demodulate the first downlink data signal according to the encoding method, and so on.

[1007] The signal transmission method provided in this application embodiment involves an IoT device first receiving a first indication signal sent by a network device and / or an intermediate node device. A first correlation exists between the first indication signal and a first downlink data signal. Then, based on the first indication signal and the first correlation, the IoT device receives the first downlink data signal sent by the network device and / or the intermediate node device. Because of the first correlation between the first indication signal and the first downlink data signal, the IoT device can receive the first downlink data signal simply by combining the first correlation after receiving the first indication signal. This eliminates the need for the IoT device and network device to transmit data signals, or for the IoT device and intermediate node device to transmit data signals through multiple interactions to achieve and maintain synchronization. The downlink data signal transmission consumes less power and is suitable for data signal transmission in low-power A-IoT devices.

[1008] Optionally, the first association relationship between the first indication signal and the first downlink data signal may include the first to fourth items below, which will be described in detail below.

[1009] The first item is the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal.

[1010] Optionally, the transmission time information of the first indication signal includes the size of the transmission time unit of the first indication signal, wherein the size of the transmission time unit of the first indication signal represents the transmission time required for each bit of data of the first indication signal.

[1011] Optionally, the transmission time information of the first downlink data signal includes the start reception time of the first downlink data signal and / or the size of the transmission time unit of the first downlink data signal. Wherein, the start reception time of the first downlink data signal is the start time at which the network device and / or intermediate node device receive the first downlink data signal, and the transmission time unit of the first downlink data signal is the transmission duration required for each bit of data in the first downlink data signal.

[1012] Optionally, the first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

[1013] Optionally, at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal. For any transmission time unit of the first downlink data signal, the start time of the transmission time unit represents the start time when the network device and / or intermediate node device sends the bit data corresponding to the transmission time unit to the IoT device, and the end time of the transmission time unit represents the end time when the network device and / or intermediate node device sends the bit data corresponding to the transmission time unit to the IoT device. The time period between the start and end times is the required transmission duration for this bit data.

[1014] Optionally, at least one first preamble signal satisfies at least one of the following: at least one first preamble signal is transmitted on a configured bit stream; at least one first preamble signal is transmitted on its respective frequency domain resource; at least one first preamble signal is transmitted on its respective time domain resource.

[1015] Optionally, the first preamble signal is a binary bit stream, which may be, for example, a bit stream of bits 0 and bits 1. The bit stream can be any of the following: an orthogonal sequence; a predefined sequence pattern; or a predefined bit pattern.

[1016] In the above embodiments, at least one first preamble signal included in the first indication signal has been described. The relationship between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal will be described below.

[1017] Optionally, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following 1.1 to 1.3:

[1018] 1.1 The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal.

[1019] The relationship between the transmission time unit of the first indication signal and the transmission time unit of the first downlink data signal can be, for example, combined with... Figure 6 To understand.

[1020] Figure 6 A schematic diagram of the indication signals and data signals provided in the embodiments of this application. Figure 1 ,like Figure 6 As shown, taking an indicator signal and its corresponding data signal as a set of signals as an example, Figure 6 The example illustrates two sets of signals. One set includes an indicator signal A and its corresponding data signal B, while the other set includes an indicator signal C and its corresponding data signal D.

[1021] In this embodiment, the first downlink data signal is one of a plurality of downlink data signals, which are the downlink data signals corresponding to each of the multiple downlink data in the downlink data packet. For any downlink data in the downlink data packet, the corresponding downlink data signal can be obtained after encoding and modulation operations on the downlink data.

[1022] like Figure 6 As shown, assuming that the downlink data packet includes two downlink data, the two downlink data are encoded and modulated to obtain two corresponding downlink data signals, namely data signal B and data signal D.

[1023] Taking the first indication signal as indication signal A and the first downlink data signal as data signal B as an example, the first indication signal includes 12 transmission time units ( Figure 6 Each box in indicator signal A represents a transmission time unit (there are 12 in total), indicating that the data size of the first indicator signal is 12 bits. Each transmission time unit of the first indicator signal corresponds to one bit of data in the first indicator signal. The transmission time unit of the first indicator signal is the transmission duration required for each bit of data in the first indicator signal. Figure 6 The size of the transmission time unit of the first indicator signal is denoted as a.

[1024] The first downlink data signal includes 24 transmission time units ( Figure 6 In the data signal B, each box represents a transmission time unit (a total of 24 boxes), indicating that the data size of the first downlink data signal is 24 bits. Each transmission time unit of the first downlink data signal corresponds to one bit of data in the first downlink data signal. The transmission time unit of the first downlink data signal is the transmission duration required for each bit of data in the first downlink data signal. Figure 6 The size of the transmission time unit of the first downlink data signal is denoted as b.

[1025] The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal, meaning that the transmission time required for each bit of data in the first indication signal is equal to the transmission time required for each bit of data in the first downlink data signal. Figure 6 For example, a = b.

[1026] 1.2 The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1.

[1027] In this embodiment, the value of K1 can be, for example, 2, 3, 4, etc. The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, meaning that the transmission time required for each bit of data in the first indication signal is K1 times the transmission time required for each bit of data in the first downlink data signal. Figure 6 For example, a = K1 * b.

[1028] 1.3 The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals.

[1029] by Figure 6 Taking multiple downlink data signals corresponding to multiple downlink data in a mid-to-downlink data packet, including data signal B and data signal D, as an example, the transmission time unit of the first downlink data signal is the minimum value between the transmission time units of data signal B and data signal D. Figure 6 In the above, the size of the transmission time unit of the first downlink data signal (i.e., data signal B) is denoted as b, and the size of the transmission time unit of the data signal D is denoted as c. Then the size of the transmission time unit of the first indication signal is the minimum value between b and c, i.e., a = min(b, c), where min means taking the minimum value.

[1030] Optionally, if the number of first preamble signals included in the first indication signal is one, the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of 1.1 to 1.3 above. In this case, the transmission time unit of the first indication signal is also the transmission time unit of the first preamble signal.

[1031] Optionally, the first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following in 1.4 to 1.6:

[1032] 1.4 The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal.

[1033] The relationship between the transmission time unit of the first component and the transmission time unit of the first downlink data signal can be, for example, combined with... Figure 7 To understand.

[1034] Figure 7 A schematic diagram of the indication signals and data signals provided in the embodiments of this application. Figure 2 ,like Figure 7 As shown, taking an indicator signal and its corresponding data signal as a set of signals as an example, Figure 7 The example illustrates two sets of signals. One set includes an indicator signal A and its corresponding data signal B, while the other set includes an indicator signal C and its corresponding data signal D.

[1035] In this embodiment, the first downlink data signal is one of a plurality of downlink data signals, which are the downlink data signals corresponding to each of the multiple downlink data in the downlink data packet. For any downlink data in the downlink data packet, the corresponding downlink data signal can be obtained after encoding and modulation operations on the downlink data.

[1036] like Figure 7 As shown, assuming that the downlink data packet includes two downlink data, the two downlink data are encoded and modulated to obtain two corresponding downlink data signals, namely data signal B and data signal D.

[1037] Taking the first indication signal as indication signal A, the first component as A', and the first downlink data signal as data signal B as an example, the first component includes 6 transmission time units ( Figure 7 Each box in indicator signal A represents a transmission time unit (12 in total), indicating that the data size of the first component is 12 bits. Each transmission time unit of the first component corresponds to one bit of data in the first component, and the transmission time unit of the first component is the transmission duration required for each bit of data in the first component. Figure 7 The size of the transmission time unit of the first component is denoted as a'.

[1038] The first downlink data signal includes 24 transmission time units ( Figure 7 In the data signal B, each box represents a transmission time unit (a total of 24 boxes), indicating that the data size of the first downlink data signal is 24 bits. Each transmission time unit of the first downlink data signal corresponds to one bit of data in the first downlink data signal. The transmission time unit of the first downlink data signal is the transmission duration required for each bit of data in the first downlink data signal. Figure 7 The size of the transmission time unit of the first downlink data signal is denoted as b.

[1039] The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal, meaning that the transmission time required for each bit of data in the first component is equal to the transmission time required for each bit of data in the first downlink data signal. Figure 7 For example, a' = b.

[1040] 1.5 The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1.

[1041] In this embodiment, K2 can take the value of 2, 3, 4, etc. The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, meaning that the transmission time required for each bit of data in the first component is K2 times the transmission time required for each bit of data in the first downlink data signal. Figure 7 For example, a' = K2*b.

[1042] 1.6 The transmission time unit of the first component is the minimum value among the transmission time units of the multiple downlink data signals.

[1043] by Figure 7 Taking multiple downlink data signals corresponding to multiple downlink data in a mid-to-downlink data packet, including data signal B and data signal D, as an example, the transmission time unit of the first component is the minimum value between the transmission time units of data signal B and data signal D. Figure 7 In the above, the size of the transmission time unit of the first downlink data signal (i.e., data signal B) is denoted as b, and the size of the transmission time unit of the data signal D is denoted as c. Then the size of the transmission time unit of the first component is the minimum value between b and c, i.e., a' = min(b,c), where min means taking the minimum value.

[1044] Optionally, when the number of first preamble signals included in the first indication signal is at least one, the correlation between the transmission time information of the first component and the transmission time information of the first downlink data signal satisfies at least one of 1.4 to 1.6 above.

[1045] The second point concerns the relationship between the encoding method of the first indication signal and the encoding method of the first downlink data signal.

[1046] Encoding methods include encoding type and / or encoding parameters.

[1047] Optionally, the encoding method may include at least one of Manchester coding, Pulse Interval Encoding (PIE), Bi-Phase Space Coding (FM0), Miller coding (also known as Delay Modulation Coding), Convolutional Code, and Turbo Coding (a type of forward error correction coding).

[1048] Optionally, the encoding parameters may include, for example, the code rate for each bit encoding, the mapping method for bit 0, the mapping method for bit 1, the sampling rate for each bit encoding, the sampling time interval for each bit encoding, and the duration of each encoded bit. Here, for any signal, "bit" represents each bit of data in the signal. Taking a bit of data in the first indication signal as an example, the encoding parameters of the first indication signal may include the code rate of that bit of data, the mapping method when that bit of data is equal to 0, the mapping method when that bit of data is equal to 1, the sampling rate of that bit of data, and the sampling time interval for encoding that bit of data.

[1049] The mapping methods for bit 0 and bit 1 can be preset. For example, there are two mapping methods for bit 0: one is to map 0 to 01, and the other is to map 0 to 0011. This means that for a given bit data, if the bit data is 0, the result after the first bit 0 mapping method is 01, and the result after the second bit 0 mapping method is 0011. Similarly, there are two mapping methods for bit 1: one is to map 1 to 0101, and the other is to map 1 to 0111. This means that for a given bit data, if the bit data is 1, the result after the first bit 1 mapping method is 0101, and the result after the second bit 0 mapping method is 0111. It should be noted that the above mapping methods for bit 0 and bit 1 are merely examples and do not constitute a limitation on the mapping methods.

[1050] The above embodiments have described the contents of the encoding method. The following, with specific examples, will illustrate the relationship between the encoding method of the first indication signal and the encoding method of the first downlink data signal.

[1051] Optionally, the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following conditions 2.1 to 2.5:

[1052] 2.1 The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal.

[1053] Optionally, the encoding type of the first indication signal includes at least one of Manchester encoding, PIE encoding, FM0 encoding, Miller encoding, convolutional code, and Turbo encoding. The encoding type of the first downlink data signal includes at least one of Manchester encoding, PIE encoding, FM0 encoding, Miller encoding, convolutional code, and Turbo encoding.

[1054] The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal. For example, the encoding type of the first indication signal and the encoding type of the first downlink data signal are both Manchester encoding; for example, the encoding type of the first indication signal and the encoding type of the first downlink data signal are both PIE encoding; for example, the encoding type of the first indication signal and the encoding type of the first downlink data signal both include FM0 encoding and Miller encoding, etc.

[1055] 2.2 The encoding parameters of the first indication signal are the same as those of the first downlink data signal.

[1056] Optionally, the encoding parameters of the first indication signal include: the code rate of each bit encoding, the mapping method of bit 0, the mapping method of bit 1, the sampling rate of each bit encoding, the sampling time interval of each bit encoding, and the time length of each bit after encoding.

[1057] Optionally, the encoding parameters of the first downlink data signal include: the code rate of each bit encoding, the mapping method of bit 0, the mapping method of bit 1, the sampling rate of each bit encoding, the sampling time interval of each bit encoding, and the time length of each bit after encoding.

[1058] The encoding parameters of the first indication signal are the same as those of the first downlink data signal, indicating that at least one of the following conditions 2.21 to 2.26 is satisfied:

[1059] 2.21. The code rate of each bit encoded in the first indication signal is the same as the code rate of each bit encoded in the first downlink data signal;

[1060] 2.22. The mapping method of bit 0 of the first indication signal is the same as the mapping method of bit 0 of the first downlink data signal;

[1061] 2.23. The mapping method of bit 1 of the first indication signal is the same as the mapping method of bit 1 of the first downlink data signal;

[1062] 2.24. The sampling rate of each bit encoding of the first indication signal is the same as the sampling rate of each bit encoding of the first downlink data signal;

[1063] 2.25. The sampling time interval for each bit encoding of the first indication signal is the same as the sampling time interval for each bit encoding of the first downlink data signal;

[1064] 2.26. The time length of each bit after encoding the first indication signal is the same as the time length of each bit after encoding the first downlink data signal.

[1065] 2.3 The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1.

[1066] The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, indicating that at least one of the following conditions 2.31 to 2.36 is satisfied:

[1067] 2.31. The code rate of each bit of the first indication signal is 1 / R times the code rate of each bit of the first downlink data signal.

[1068] 2.32. The mapping method of bit 0 of the first indication signal is 1 / R times the mapping method of bit 0 of the first downlink data signal.

[1069] Wherein, the mapping method of bit 0 of the first indication signal is 1 / R times the mapping method of bit 0 of the first downlink data signal. For example, it can mean that the number of mapped 0s in the mapping method of bit 0 of the first indication signal is 1 / R times the number of mapped 0s in the mapping method of bit 0 of the first downlink data signal, and / or, the number of mapped 1s in the mapping method of bit 0 of the first indication signal is 1 / R times the number of mapped 1s in the mapping method of bit 0 of the first downlink data signal.

[1070] Taking the mapping method of bit 0 of the first indicator signal where the number of mapped 0s is 1 / 2 times the number of mapped 0s of bit 0 of the first downlink data signal (R=2) as an example, the mapping method of bit 0 of the first downlink data signal indicates that 0 is mapped to 0011, so the number of mapped 0s in the mapping method of bit 0 of the first downlink data signal is 2. Correspondingly, the mapping method of bit 0 of the first indicator signal where the number of mapped 0s is 1 indicates that 0 is mapped to 011.

[1071] 2.33. The mapping method of bit 1 of the first indication signal is 1 / R times the mapping method of bit 1 of the first downlink data signal.

[1072] Wherein, the mapping method of bit 1 of the first indication signal is 1 / R times the mapping method of bit 1 of the first downlink data signal. For example, it can mean that the number of mapped 0s in the mapping method of bit 1 of the first indication signal is 1 / R times the number of mapped 0s in the mapping method of bit 1 of the first downlink data signal, and / or, the number of mapped 1s in the mapping method of bit 1 of the first indication signal is 1 / R times the number of mapped 1s in the mapping method of bit 1 of the first downlink data signal.

[1073] Taking the mapping method of bit 1 of the first indicator signal where the number of mapped 1s is 1 / 3 times the number of mapped 1s of bit 1 of the first downlink data signal (R=3) as an example, the mapping method of bit 1 of the first downlink data signal indicates that 1 is mapped to 0111, so the number of mapped 1s of bit 1 of the first downlink data signal is 3. Correspondingly, the mapping method of bit 1 of the first indicator signal where the number of mapped 1s is 1, so the mapping method of bit 1 of the first indicator signal indicates that 1 is mapped to 01.

[1074] 2.34. The sampling rate of each bit encoding of the first indication signal is 1 / R times the sampling rate of each bit encoding of the first downlink data signal.

[1075] 2.35. The sampling time interval for each bit of the first indication signal is 1 / R times the sampling time interval for each bit of the first downlink data signal.

[1076] 2.36. The time length of each bit after encoding the first indication signal is 1 / R times the time length of each bit after encoding the first downlink data signal.

[1077] 2.4 The encoding parameters of the first indicator signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals.

[1078] The encoding parameter of the first indication signal is the minimum value among the encoding parameters of the plurality of downlink data signals, indicating that at least one of the following conditions 2.41 to 2.46 is satisfied:

[1079] 2.41. The code rate of each bit of the first indicator signal is the minimum value among the code rates of each bit of the multiple downlink data signals.

[1080] 2.42. The mapping method of bit 0 of the first indicator signal is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals.

[1081] The mapping method of bit 0 of the first indication signal is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the fewest 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first indication signal.

[1082] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 01, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal A is used as the mapping method of bit 0 of the first indication signal.

[1083] The mapping method of bit 0 of the first indication signal is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the fewest 1s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first indication signal.

[1084] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 0101, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 0 of downlink data signal B is used as the mapping method of bit 0 of the first indication signal.

[1085] 2.43. The mapping method of bit 1 of the first indicator signal is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals.

[1086] The mapping method of bit 1 of the first indication signal is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the fewest 1s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first indication signal.

[1087] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 1, and 0011 includes two 1s. Therefore, the mapping method of bit 1 of downlink data signal A is used as the mapping method of bit 1 of the first indication signal.

[1088] The mapping method of bit 1 of the first indication signal is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the fewest 0s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first indication signal.

[1089] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 0101, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 1 of downlink data signal B is used as the mapping method of bit 1 of the first indication signal.

[1090] 2.44. The sampling rate of each bit encoding of the first indicator signal is the minimum of the sampling rates of each bit encoding of the multiple downlink data signals.

[1091] 2.45. The sampling time interval of each bit encoding of the first indicator signal is the minimum value among the sampling time intervals of each bit encoding of multiple downlink data signals.

[1092] 2.46. The time length of each bit after encoding the first indicator signal is the minimum value among the time lengths of each bit after encoding the multiple downlink data signals.

[1093] 2.5 The encoding parameters of the first indicator signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals.

[1094] The encoding parameter of the first indication signal is the maximum value among the encoding parameters of the plurality of downlink data signals, indicating that at least one of the following conditions 2.51 to 2.56 is satisfied:

[1095] 2.51. The code rate of each bit of the first indicator signal is the maximum value among the code rates of each bit of the multiple downlink data signals.

[1096] 2.52. The mapping method of bit 0 of the first indicator signal is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals.

[1097] The mapping method of bit 0 of the first indication signal is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the most 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first indication signal.

[1098] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 01, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal B is used as the mapping method of bit 0 of the first indication signal.

[1099] The mapping method of bit 0 of the first indication signal is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the most 1s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first indication signal.

[1100] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 0101, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 0 of downlink data signal A is used as the mapping method of bit 0 of the first indication signal.

[1101] 2.53. The mapping method of bit 1 of the first indicator signal is the maximum value among the mapping methods of bit 1 of the multiple downlink data signals.

[1102] The mapping method of bit 1 of the first indication signal is the maximum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the most 1s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first indication signal.

[1103] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 1, and 0011 includes two 1s. Therefore, the mapping method of bit 1 of downlink data signal B is used as the mapping method of bit 1 of the first indication signal.

[1104] The mapping method of bit 1 of the first indication signal is the maximum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the most 0s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first indication signal.

[1105] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 0101, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 1 of downlink data signal A is used as the mapping method of bit 1 of the first indication signal.

[1106] 2.54. The sampling rate of each bit encoding of the first indicator signal is the maximum value among the sampling rates of each bit encoding of multiple downlink data signals.

[1107] 2.55. The sampling time interval for each bit of the first indicator signal is the maximum value among the sampling time intervals for each bit of the multiple downlink data signals.

[1108] 2.56. The time length of each bit after encoding the first indicator signal is the maximum value among the time lengths of each bit after encoding the multiple downlink data signals.

[1109] Optionally, the first indication signal includes a first component and at least one second component, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following 3.1 to 3.5:

[1110] 3.1 The encoding type of the first component is the same as the encoding type of the first downlink data signal.

[1111] Optionally, the encoding type of the first component includes at least one of Manchester encoding, PIE encoding, FM0 encoding, Miller encoding, convolutional code, and Turbo encoding. The encoding type of the first downlink data signal includes at least one of Manchester encoding, PIE encoding, FM0 encoding, Miller encoding, convolutional code, and Turbo encoding.

[1112] The encoding type of the first component is the same as the encoding type of the first downlink data signal. For example, the encoding type of the first component and the encoding type of the first downlink data signal are both Manchester encoding; for example, the encoding type of the first component and the encoding type of the first downlink data signal are both PIE encoding; for example, the encoding type of the first component and the encoding type of the first downlink data signal both include FM0 encoding and Miller encoding, etc.

[1113] 3.2 The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal.

[1114] Optionally, the encoding parameters of the first component include: the bit rate for each bit encoding, the mapping method for bit 0, the mapping method for bit 1, the sampling rate for each bit encoding, the sampling time interval for each bit encoding, and the time length of each bit after encoding.

[1115] Optionally, the encoding parameters of the first downlink data signal include: the code rate of each bit encoding, the mapping method of bit 0, the mapping method of bit 1, the sampling rate of each bit encoding, the sampling time interval of each bit encoding, and the time length of each bit after encoding.

[1116] The encoding parameters of the first component are the same as those of the first downlink data signal, indicating that at least one of the following conditions 3.21 to 3.26 is satisfied:

[1117] 3.21. The code rate of each bit encoded in the first component is the same as the code rate of each bit encoded in the first downlink data signal;

[1118] 3.22. The mapping method of bit 0 in the first component is the same as the mapping method of bit 0 in the first downlink data signal;

[1119] 3.23. The mapping method of bit 1 of the first component is the same as the mapping method of bit 1 of the first downlink data signal;

[1120] 3.24. The sampling rate of each bit encoded in the first component is the same as the sampling rate of each bit encoded in the first downlink data signal;

[1121] 3.25. The sampling time interval for each bit encoded in the first component is the same as the sampling time interval for each bit encoded in the first downlink data signal;

[1122] 3.26. The time length of each bit after encoding of the first component is the same as the time length of each bit after encoding of the first downlink data signal.

[1123] 3.3 The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1.

[1124] The coding parameters of the first component are 1 / L times the coding parameters of the first downlink data signal, indicating that at least one of the following conditions 3.31 to 3.36 is satisfied:

[1125] 3.31. The code rate of each bit encoded in the first component is 1 / L times the code rate of each bit encoded in the first downlink data signal.

[1126] 3.32. The mapping method of bit 0 of the first component is 1 / L times the mapping method of bit 0 of the first downlink data signal.

[1127] Wherein, the mapping method of bit 0 in the first component is 1 / L times the mapping method of bit 0 in the first downlink data signal. For example, it can mean that the number of mapped 0s in the mapping method of bit 0 in the first component is 1 / L times the number of mapped 0s in the mapping method of bit 0 in the first downlink data signal, and / or, the number of mapped 1s in the mapping method of bit 0 in the first component is 1 / L times the number of mapped 1s in the mapping method of bit 0 in the first downlink data signal.

[1128] Taking the mapping method of bit 0 in the first component where the number of mapped 0s is 1 / 2 times the number of mapped 0s in the mapping method of bit 0 in the first downlink data signal (L=2) as an example, if the mapping method of bit 0 in the first downlink data signal indicates that 0 is mapped to 0011, then the number of mapped 0s in the mapping method of bit 0 in the first downlink data signal is 2. Correspondingly, if the mapping method of bit 0 in the first component is 1, then the mapping method of bit 0 in the first component indicates that 0 is mapped to 011.

[1129] 3.33 The mapping method of bit 1 of the first component is 1 / L times the mapping method of bit 1 of the first downlink data signal.

[1130] Wherein, the mapping method of bit 1 in the first component is 1 / L times the mapping method of bit 1 in the first downlink data signal. For example, it can mean that the number of mapped 0s in the mapping method of bit 1 in the first component is 1 / L times the number of mapped 0s in the mapping method of bit 1 in the first downlink data signal, and / or, the number of mapped 1s in the mapping method of bit 1 in the first component is 1 / L times the number of mapped 1s in the mapping method of bit 1 in the first downlink data signal.

[1131] Taking the mapping method of bit 1 in the first component where the number of mapped 1s is 1 / 3 times the number of mapped 1s in the mapping method of bit 1 in the first downlink data signal (L=3) as an example, if the mapping method of bit 1 in the first downlink data signal indicates that 1 is mapped to 0111, then the number of mapped 1s in the mapping method of bit 1 in the first downlink data signal is 3. Correspondingly, if the mapping method of bit 1 in the first component is 1, then the mapping method of bit 1 in the first component indicates that 1 is mapped to 01.

[1132] 3.34. The sampling rate of each bit encoded in the first component is 1 / L times the sampling rate of each bit encoded in the first downlink data signal.

[1133] 3.35. The sampling time interval for each bit encoding of the first component is 1 / L times the sampling time interval for each bit encoding of the first downlink data signal.

[1134] 3.36. The time length of each bit after encoding of the first component is 1 / L times the time length of each bit after encoding of the first downlink data signal.

[1135] 3.4 The coding parameters of the first component are the minimum values ​​among the coding parameters of the multiple downlink data signals.

[1136] The coding parameters of the first component are the minimum values ​​among the coding parameters of the various downlink data signals, representing at least one of the following conditions 3.41 to 3.46:

[1137] 3.41. The code rate of each bit encoded in the first component is the minimum of the code rates of each bit encoded in the multiple downlink data signals.

[1138] 3.42. The mapping method of bit 0 in the first component is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals.

[1139] The mapping method of bit 0 in the first component is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the fewest 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first component.

[1140] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 01, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal A is taken as the mapping method of bit 0 of the first component.

[1141] The mapping method of bit 0 in the first component is the minimum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the fewest 1s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals as the mapping method of bit 0 in the first component.

[1142] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 0101, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 0 of downlink data signal B is taken as the mapping method of bit 0 of the first component.

[1143] 3.43. The mapping method of bit 1 in the first component is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals.

[1144] The mapping method of bit 1 in the first component is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the fewest 1s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first component.

[1145] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 1, and 0011 includes two 1s. Therefore, the mapping method of bit 1 of downlink data signal A is taken as the mapping method of bit 1 of the first component.

[1146] The mapping method of bit 1 in the first component is the minimum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the fewest 0s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first component.

[1147] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 0101, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 1 of downlink data signal B is taken as the mapping method of bit 1 of the first component.

[1148] 3.44. The sampling rate of each bit encoded in the first component is the minimum of the sampling rates of each bit encoded in the multiple downlink data signals.

[1149] 3.45. The sampling time interval for each bit encoding of the first component is the minimum value among the sampling time intervals for each bit encoding of multiple downlink data signals.

[1150] 3.46. The time length of each bit after encoding of the first component is the minimum value among the time lengths of each bit after encoding of multiple downlink data signals.

[1151] 3.5 The coding parameters of the first component are the maximum values ​​among the coding parameters of the multiple downlink data signals.

[1152] The coding parameters of the first component are the maximum values ​​among the coding parameters of the various downlink data signals, representing at least one of the following conditions 3.51 to 3.56:

[1153] 3.51. The code rate of each bit encoded in the first component is the maximum value among the code rates of each bit encoded in the multiple downlink data signals.

[1154] 3.52. The mapping method of bit 0 in the first component is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals.

[1155] The mapping method of bit 0 in the first component is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the most 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first component.

[1156] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 01, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal B is taken as the mapping method of bit 0 of the first component.

[1157] The mapping method of bit 0 in the first component is the maximum value among the mapping methods of bit 0 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 0 with the most 1s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals and used as the mapping method of bit 0 of the first component.

[1158] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 0101, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 0 of downlink data signal A is taken as the mapping method of bit 0 of the first component.

[1159] 3.53. The mapping method of bit 1 in the first component is the maximum value among the mapping methods of bit 1 of the multiple downlink data signals.

[1160] The mapping method of bit 1 in the first component is the maximum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the most 1s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first component.

[1161] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 1, and 0011 includes two 1s. Therefore, the mapping method of bit 1 of downlink data signal B is taken as the mapping method of bit 1 of the first component.

[1162] The mapping method of bit 1 in the first component is the maximum value among the mapping methods of bit 1 of each of the multiple downlink data signals. For example, it can mean that the mapping method of bit 1 with the most 0s is selected from the mapping methods of bit 1 of each of the multiple downlink data signals and used as the mapping method of bit 1 of the first component.

[1163] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 0101, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0111. 0101 includes two 0s, and 0111 includes one 0. Therefore, the mapping method of bit 1 of downlink data signal A is taken as the mapping method of bit 1 of the first component.

[1164] 3.54. The sampling rate of each bit encoded in the first component is the maximum value among the sampling rates of each bit encoded in the multiple downlink data signals.

[1165] 3.55. The sampling time interval for each bit encoded in the first component is the maximum value among the sampling time intervals for each bit encoded in the multiple downlink data signals.

[1166] 3.56. The time length of each bit after encoding in the first component is the maximum value among the time lengths of each bit after encoding in multiple downlink data signals.

[1167] The third point concerns the relationship between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal.

[1168] Modulation methods include modulation type and / or modulation parameters.

[1169] Optionally, the modulation method may include at least one of binary on-off keying (OOK) modulation, frequency-shift keying (FSK) modulation, phase-shift keying (PSK) modulation, and minimum-shift keying (MSK) modulation.

[1170] Optionally, modulation parameters may include, for example, the magnitude of the modulation / demodulation amplitude for each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate for modulation / demodulation for each bit, the sampling time interval for modulation / demodulation for each bit, and the duration of each bit after modulation / demodulation.

[1171] The above embodiments have described the modulation methods. The following examples illustrate the relationship between the modulation method of the first indication signal and the modulation method of the first downlink data signal.

[1172] Optionally, the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following conditions 4.1 to 4.5:

[1173] 4.1 The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal.

[1174] Optionally, the modulation type of the first indication signal includes at least one of OOK modulation, FSK modulation, PSK modulation, and MSK modulation. The modulation type of the first downlink data signal includes at least one of OOK modulation, FSK modulation, PSK modulation, and MSK modulation.

[1175] The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal. For example, the modulation type of the first indication signal and the modulation type of the first downlink data signal are both OOK modulation; for example, the modulation type of the first indication signal and the modulation type of the first downlink data signal are both PSK modulation; for example, the modulation type of the first indication signal and the modulation type of the first downlink data signal both include FSK modulation and MSK modulation, etc.

[1176] 4.2 The modulation parameters of the first indication signal are the same as those of the first downlink data signal.

[1177] Optionally, the modulation parameters of the first indication signal include: the magnitude of the modulation / demodulation of each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate of modulation / demodulation of each bit, the sampling time interval of modulation / demodulation of each bit, and the duration of each bit after modulation / demodulation.

[1178] Optionally, the modulation parameters of the first downlink data signal include: the magnitude of the modulation / demodulation of each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate of modulation / demodulation of each bit, the sampling time interval of modulation / demodulation of each bit, and the duration of each bit after modulation / demodulation.

[1179] The modulation parameters of the first indication signal are the same as those of the first downlink data signal, indicating that at least one of the following conditions 4.21 to 4.26 is satisfied:

[1180] 4.21 The amplitude of modulation / demodulation of each bit of the first indication signal is the same as the amplitude of modulation / demodulation of each bit of the first downlink data signal.

[1181] 4.22 The number of mappings 0 to bit 0 of the first indicator signal is the same as the number of mappings 0 to bit 0 of the first downlink data signal, and / or the number of mappings 1 to bit 0 of the first indicator signal is the same as the number of mappings 1 to bit 0 of the first downlink data signal.

[1182] 4.23 The number of 0 mappings of bit 1 of the first indication signal is the same as the number of 0 mappings of bit 1 of the first downlink data signal, and / or the number of 1 mappings of bit 1 of the first indication signal is the same as the number of 1 mappings of bit 1 of the first downlink data signal.

[1183] 4.24 The sampling rate of each bit of the first indication signal modulation / demodulation is the same as the sampling rate of each bit of the first downlink data signal modulation / demodulation.

[1184] 4.25. The sampling time interval for each bit of the first indication signal modulation / demodulation is the same as the sampling time interval for each bit of the first downlink data signal modulation / demodulation.

[1185] 4.26 The duration of each bit of the first indication signal after modulation / demodulation is the same as the duration of each bit of the first downlink data signal after modulation / demodulation.

[1186] 4.3 The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1.

[1187] The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, indicating that at least one of the following conditions 4.31 to 4.36 is satisfied:

[1188] 4.31. The amplitude of each bit of the first indication signal being modulated / demodulated is 1 / D times the amplitude of each bit of the first downlink data signal being modulated / demodulated.

[1189] 4.32 The number of 0s mapped to bit 0 of the first indicator signal is 1 / D times the number of 0s mapped to bit 0 of the first downlink data signal, and / or the number of 1s mapped to bit 0 of the first indicator signal is 1 / D times the number of 1s mapped to bit 0 of the first downlink data signal.

[1190] Taking the example that the number of 0s mapped to bit 0 of the first indicator signal is 1 / 2 times the number of 0s mapped to bit 0 of the first downlink data signal (D=2), if the number of 0s mapped to bit 0 of the first downlink data signal is 2 (for example, indicating that 0 is mapped to 00), then the number of 0s mapped to bit 0 of the first indicator signal is 1 (for example, indicating that 0 is mapped to 0).

[1191] 4.33 The number of 0s mapped to bit 1 of the first indicator signal is 1 / D times the number of 0s mapped to bit 1 of the first downlink data signal, and / or the number of 1s mapped to bit 1 of the first indicator signal is 1 / D times the number of 1s mapped to bit 1 of the first downlink data signal.

[1192] 4.34. The sampling rate of each bit of the first indication signal modulation / demodulation is 1 / D times the sampling rate of each bit of the first downlink data signal modulation / demodulation.

[1193] 4.35. The sampling time interval for each bit of the first indication signal modulation / demodulation is 1 / D times the sampling time interval for each bit of the first downlink data signal modulation / demodulation.

[1194] 4.36. The duration of each bit of the first indication signal after modulation / demodulation is 1 / D times the duration of each bit of the first downlink data signal after modulation / demodulation.

[1195] 4.4 The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals.

[1196] The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the plurality of downlink data signals, indicating that it satisfies at least one of the following conditions 4.41 to 4.46:

[1197] 4.41. The amplitude of each bit of the first indication signal being modulated / demodulated is the minimum of the amplitudes of each bit of the multiple downlink data signals being modulated / demodulated.

[1198] 4.42. The number of mappings of bit 0 of the first indicator signal is the minimum of the number of mappings of bit 0 of the multiple downlink data signals, and / or, the number of mappings of bit 0 of the first indicator signal is the minimum of the number of mappings of bit 0 of the multiple downlink data signals.

[1199] The number of 0s mapped to bit 0 of the first indicator signal is the minimum value among the number of 0s mapped to bit 0 of multiple downlink data signals. For example, it can mean that the mapping method with the fewest 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals as the mapping method of bit 0 of the first indicator signal.

[1200] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 01, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal A is used as the mapping method of bit 0 of the first indication signal.

[1201] The implementation method of having the number of 1s mapped to bit 0 of the first indicator signal as the minimum value among the number of 1s mapped to bit 0 of multiple downlink data signals is similar to the implementation method of having the number of 0s mapped to bit 0 of the first indicator signal as the minimum value among the number of 0s mapped to bit 0 of multiple downlink data signals, and will not be repeated here.

[1202] 4.43. The number of 0s mapped to bit 1 of the first indicator signal is the minimum of the number of 0s mapped to bit 1 of the multiple downlink data signals, and / or the number of 1s mapped to bit 1 of the first indicator signal is the minimum of the number of 1s mapped to bit 1 of the multiple downlink data signals.

[1203] The number of 0s mapped to bit 1 of the first indicator signal is the minimum value among the number of 0s mapped to bit 1 of multiple downlink data signals. For example, it can mean that the bit 1 mapping method with the fewest 0s is selected from the bit 1 mapping methods of each of the multiple downlink data signals and used as the bit 1 mapping method of the first indicator signal.

[1204] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 1 of downlink data signal A is used as the mapping method of bit 1 of the first indication signal.

[1205] The implementation method of having the number of mapped 1s of bit 1 in the first indicator signal as the minimum value among the number of mapped 1s of bit 1 in multiple downlink data signals is similar to the implementation method of having the number of mapped 0s of bit 1 in the first indicator signal as the minimum value among the number of mapped 0s of bit 1 in multiple downlink data signals, and will not be elaborated here.

[1206] 4.44. The sampling rate of each bit of the first indicator signal modulation / demodulation is the minimum of the sampling rates of each bit of the multiple downlink data signals modulation / demodulation.

[1207] 4.45. The sampling time interval for each bit of the first indication signal modulation / demodulation is the minimum value among the sampling time intervals for each bit of the multiple downlink data signals modulation / demodulation.

[1208] 4.46. The duration of each bit after modulation / demodulation of the first indication signal is the minimum of the duration of each bit after modulation / demodulation of multiple downlink data signals.

[1209] 4.5 The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals.

[1210] The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the plurality of downlink data signals, indicating that at least one of the following conditions 4.51 to 4.56 is satisfied:

[1211] 4.51. The amplitude of each bit of the first indication signal being modulated / demodulated is the maximum value among the amplitudes of each bit of the multiple downlink data signals being modulated / demodulated.

[1212] 4.52. The number of mappings of bit 0 of the first indicator signal is the maximum value among the number of mappings of bit 0 of the multiple downlink data signals, and / or, the number of mappings of bit 0 of the first indicator signal is the maximum value among the number of mappings of bit 0 of the multiple downlink data signals.

[1213] The number of 0s mapped to bit 0 of the first indicator signal is the maximum value among the number of 0s mapped to bit 0 of multiple downlink data signals. For example, it can mean that the mapping method with the most 0s is selected from the mapping methods of bit 0 of each of the multiple downlink data signals, and used as the mapping method of bit 0 of the first indicator signal.

[1214] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method for bit 0 of downlink data signal A is to map 0 to 01, and the mapping method for bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal B is used as the mapping method of bit 0 of the first indication signal.

[1215] The implementation of the number of 1s mapped to bit 0 of the first indicator signal being the maximum value among the number of 1s mapped to bit 0 of multiple downlink data signals is similar to the implementation of the number of 0s mapped to bit 0 of the first indicator signal being the maximum value among the number of 0s mapped to bit 0 of multiple downlink data signals, and will not be elaborated here.

[1216] 4.53. The number of 0s mapped to bit 1 of the first indicator signal is the maximum value among the number of 0s mapped to bit 1 of the multiple downlink data signals, and / or, the number of 1s mapped to bit 1 of the first indicator signal is the maximum value among the number of 1s mapped to bit 1 of the multiple downlink data signals.

[1217] The number of 0s mapped to bit 1 of the first indicator signal is the maximum value among the number of 0s mapped to bit 1 of multiple downlink data signals. For example, it can mean that the mapping method with the most 0s in bit 1 of each of the multiple downlink data signals is selected as the mapping method of bit 1 of the first indicator signal.

[1218] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 1 of downlink data signal B is used as the mapping method of bit 1 of the first indication signal.

[1219] The implementation of the number of mappings 1 to bit 1 of the first indicator signal being the maximum value among the number of mappings 1 to bit 1 of multiple downlink data signals is similar to the implementation of the number of mappings 0 to bit 1 of the first indicator signal being the maximum value among the number of mappings 0 to bit 1 of multiple downlink data signals, and will not be elaborated here.

[1220] 4.54. The sampling rate of each bit of the first indication signal modulation / demodulation is the maximum value among the sampling rates of each bit of the multiple downlink data signals modulation / demodulation.

[1221] 4.55. The sampling time interval for each bit of the first indication signal modulation / demodulation is the maximum value among the sampling time intervals for each bit of the multiple downlink data signals modulation / demodulation.

[1222] 4.56. The duration of each bit after modulation / demodulation of the first indication signal is the maximum value among the durations of each bit after modulation / demodulation of multiple downlink data signals.

[1223] Optionally, the first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following conditions 5.1 to 5.5:

[1224] 5.1 The modulation type of the first component is the same as the modulation type of the first downlink data signal.

[1225] Optionally, the modulation type of the first component includes at least one of OOK modulation, FSK modulation, PSK modulation, and MSK modulation. The modulation type of the first downlink data signal includes at least one of OOK modulation, FSK modulation, PSK modulation, and MSK modulation.

[1226] The modulation type of the first component is the same as the modulation type of the first downlink data signal. For example, the modulation type of the first component and the modulation type of the first downlink data signal are both OOK modulation; for example, the modulation type of the first component and the modulation type of the first downlink data signal are both PSK modulation; for example, the modulation type of the first component and the modulation type of the first downlink data signal include both FSK modulation and MSK modulation, etc.

[1227] 5.2 The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal.

[1228] Optionally, the modulation parameters of the first component include: the magnitude of the modulation / demodulation amplitude for each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate for modulation / demodulation for each bit, the sampling time interval for modulation / demodulation for each bit, and the duration of each bit after modulation / demodulation.

[1229] Optionally, the modulation parameters of the first downlink data signal include: the magnitude of the modulation / demodulation of each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate of modulation / demodulation of each bit, the sampling time interval of modulation / demodulation of each bit, and the duration of each bit after modulation / demodulation.

[1230] The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal, indicating that at least one of the following conditions 5.21 to 5.26 is satisfied:

[1231] 5.21. The amplitude of modulation / demodulation of each bit in the first component is the same as the amplitude of modulation / demodulation of each bit in the first downlink data signal.

[1232] 5.22 The number of mappings 0 to bit 0 in the first component is the same as the number of mappings 0 to bit 0 in the first downlink data signal, and / or the number of mappings 1 to bit 0 in the first component is the same as the number of mappings 1 to bit 0 in the first downlink data signal.

[1233] 5.23 The number of mappings 0 to bit 1 of the first component is the same as the number of mappings 0 to bit 1 of the first downlink data signal, and / or the number of mappings 1 to bit 1 of the first component is the same as the number of mappings 1 to bit 1 of the first downlink data signal.

[1234] 5.24. The sampling rate of each bit of the first component modulation / demodulation is the same as the sampling rate of each bit of the first downlink data signal modulation / demodulation.

[1235] 5.25 The sampling time interval for each bit of the first component modulation / demodulation is the same as the sampling time interval for each bit of the first downlink data signal modulation / demodulation.

[1236] 5.26. The duration of each bit after modulation / demodulation of the first component is the same as the duration of each bit after modulation / demodulation of the first downlink data signal.

[1237] 5.3 The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, where F is a positive integer greater than 1.

[1238] The modulation parameters of the first component are 1 / F times the modulation parameters of the first downlink data signal, indicating that at least one of the following conditions 5.31 to 5.36 is satisfied:

[1239] 5.31. The amplitude of each bit of the first component being modulated / demodulated is 1 / F times the amplitude of each bit of the first downlink data signal being modulated / demodulated.

[1240] 5.32 The number of 0 mappings of bit 0 in the first component is 1 / F times the number of 0 mappings of bit 0 in the first downlink data signal, and / or the number of 1 mappings of bit 0 in the first component is 1 / F times the number of 1 mappings of bit 0 in the first downlink data signal.

[1241] Taking the example that the number of mapped 0s of bit 0 in the first component is 1 / 2 times the number of mapped 0s of bit 0 in the first downlink data signal (F=2), if the number of mapped 0s of bit 0 in the first downlink data signal is 2 (e.g., indicating that 0 is mapped to 00), then the number of mapped 0s of bit 0 in the first component is 1 (e.g., indicating that 0 is mapped to 0).

[1242] 5.33 The number of 0s mapped to bit 1 in the first component is 1 / F times the number of 0s mapped to bit 1 in the first downlink data signal, and / or the number of 1s mapped to bit 1 in the first component is 1 / F times the number of 1s mapped to bit 1 in the first downlink data signal.

[1243] 5.34. The sampling rate of each bit of the first component modulation / demodulation is 1 / F times the sampling rate of each bit of the first downlink data signal modulation / demodulation.

[1244] 5.35. The sampling time interval for each bit of the first component modulation / demodulation is 1 / F times the sampling time interval for each bit of the first downlink data signal modulation / demodulation.

[1245] 5.36. The duration of each bit after modulation / demodulation of the first component is 1 / F times the duration of each bit after modulation / demodulation of the first downlink data signal.

[1246] 5.4 The modulation parameters of the first component are the minimum values ​​among the modulation parameters of the multiple downlink data signals.

[1247] The modulation parameter of the first component is the minimum value among the modulation parameters of the various downlink data signals, indicating that it satisfies at least one of the following conditions 5.41 to 5.46:

[1248] 5.41. The magnitude of the modulation / demodulation amplitude of each bit in the first component is the minimum of the modulation / demodulation amplitudes of each bit in the multiple downlink data signals.

[1249] 5.42. The number of mappings of bit 0 in the first component is the minimum of the number of mappings of bit 0 in the multiple downlink data signals, and / or, the number of mappings of bit 0 in the first component is the minimum of the number of mappings of bit 0 in the multiple downlink data signals.

[1250] The number of 0s mapped to bit 0 in the first component is the minimum value among the number of 0s mapped to bit 0 in multiple downlink data signals. For example, it can mean that the bit 0 mapping method with the fewest 0s is selected from the bit 0 mapping methods of each of the multiple downlink data signals and used as the bit 0 mapping method of the first component.

[1251] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 01, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal A is taken as the mapping method of bit 0 of the first component.

[1252] The implementation method of the number of 1s mapped to bit 0 in the first component being the minimum value among the number of 1s mapped to bit 0 in multiple downlink data signals is similar to the implementation method of the number of 0s mapped to bit 0 in the first component being the minimum value among the number of 0s mapped to bit 0 in multiple downlink data signals, and will not be repeated here.

[1253] 5.43 The number of 0 mappings of bit 1 in the first component is the minimum of the number of 0 mappings of bit 1 in the multiple downlink data signals, and / or the number of 1 mappings of bit 1 in the first component is the minimum of the number of 1 mappings of bit 1 in the multiple downlink data signals.

[1254] The number of 0s mapped to bit 1 in the first component is the minimum value among the number of 0s mapped to bit 1 in multiple downlink data signals. For example, it can mean that the bit 1 mapping method with the fewest 0s is selected from the bit 1 mapping methods of each of the multiple downlink data signals and used as the bit 1 mapping method of the first component.

[1255] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 1 of downlink data signal A is taken as the mapping method of bit 1 of the first component.

[1256] The implementation method of the number of mappings 1 to bit 1 in the first component being the minimum value among the number of mappings 1 to bit 1 in multiple downlink data signals is similar to the implementation method of the number of mappings 0 to bit 1 in the first component being the minimum value among the number of mappings 0 to bit 1 in multiple downlink data signals, and will not be repeated here.

[1257] 5.44. The sampling rate of each bit of modulation / demodulation in the first component is the minimum of the sampling rates of each bit of modulation / demodulation in the multiple downlink data signals.

[1258] 5.45. The sampling time interval for each bit of modulation / demodulation in the first component is the minimum of the sampling time intervals for each bit of modulation / demodulation in the multiple downlink data signals.

[1259] 5.46. The duration of each bit after modulation / demodulation of the first component is the minimum of the duration of each bit after modulation / demodulation of multiple downlink data signals.

[1260] 5.5 The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the multiple downlink data signals.

[1261] The modulation parameters of the first component are the maximum values ​​among the modulation parameters of the various downlink data signals, representing at least one of the following conditions from 5.51 to 4.56:

[1262] 5.51. The magnitude of the modulation / demodulation amplitude of each bit in the first component is the maximum value among the magnitudes of the modulation / demodulation amplitudes of each bit in the multiple downlink data signals.

[1263] 5.52. The number of mappings of bit 0 in the first component is the maximum value among the number of mappings of bit 0 in the multiple downlink data signals, and / or, the number of mappings of bit 0 in the first component is the maximum value among the number of mappings of bit 0 in the multiple downlink data signals.

[1264] The number of 0s mapped to bit 0 in the first component is the maximum value among the number of 0s mapped to bit 0 in multiple downlink data signals. For example, it can mean that the mapping method with the most 0s is selected from the mapping methods of bit 0 in each of the multiple downlink data signals, and used as the mapping method of bit 0 in the first component.

[1265] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 0 of downlink data signal A is to map 0 to 01, and the mapping method of bit 0 of downlink data signal B is to map 0 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 0 of downlink data signal B is taken as the mapping method of bit 0 of the first component.

[1266] The implementation of the number of 1s mapped to bit 0 in the first component being the maximum value among the number of 1s mapped to bit 0 in multiple downlink data signals is similar to the implementation of the number of 0s mapped to bit 0 in the first component being the maximum value among the number of 0s mapped to bit 0 in multiple downlink data signals, and will not be elaborated here.

[1267] 5.53 The number of mappings of bit 1 to 0 in the first component is the maximum value among the number of mappings of bit 1 to 0 in the multiple downlink data signals, and / or the number of mappings of bit 1 to 1 in the first component is the maximum value among the number of mappings of bit 1 to 1 in the multiple downlink data signals.

[1268] The number of 0s mapped to bit 1 in the first component is the maximum value among the number of 0s mapped to bit 1 in multiple downlink data signals. For example, it can mean that the mapping method with the most 0s is selected from the mapping methods of bit 1 in each of the multiple downlink data signals, and used as the mapping method of bit 1 in the first component.

[1269] Taking multiple downlink data signals, including downlink data signal A and downlink data signal B, as an example, the mapping method of bit 1 of downlink data signal A is to map 1 to 01, and the mapping method of bit 1 of downlink data signal B is to map 1 to 0011. 01 includes one 0, and 0011 includes two 0s. Therefore, the mapping method of bit 1 of downlink data signal B is taken as the mapping method of bit 1 of the first component.

[1270] The implementation of the number of mappings 1 to bit 1 in the first component being the maximum value among the number of mappings 1 to bit 1 in multiple downlink data signals is similar to the implementation of the number of mappings 0 to bit 1 in the first component being the maximum value among the number of mappings 0 to bit 1 in multiple downlink data signals, and will not be elaborated here.

[1271] 5.54. The sampling rate of each bit of modulation / demodulation in the first component is the maximum value among the sampling rates of each bit of modulation / demodulation of the multiple downlink data signals.

[1272] 5.55. The sampling time interval for each bit of modulation / demodulation in the first component is the maximum value among the sampling time intervals for each bit of modulation / demodulation of multiple downlink data signals.

[1273] 5.56. The duration of each bit after modulation / demodulation of the first component is the maximum value among the durations of each bit after modulation / demodulation of multiple downlink data signals.

[1274] Fourthly, the correlation between the data sizes of the first indication signal and the first downlink data signal.

[1275] The first indication signal can also be used to indicate the data size of the first downlink data signal.

[1276] For example, X types of preamble signals with different transmission time unit lengths can be preset. Each preamble signal with a transmission time unit length is associated with a downlink data signal with a transmission time unit length. That is, there is a correlation or correspondence between the transmission time unit length of the preamble signal and the transmission time unit length of the downlink data signal. For each downlink data signal, as long as the transmission time unit length of its corresponding preamble signal is determined, the transmission time unit length of the downlink data signal can be determined, thereby determining the data size of the downlink data signal.

[1277] The correspondence between the transmission time unit lengths of the preamble signal and the downlink data signal can be, for example, combined with... Figure 8 To understand. Figure 8 This is a schematic diagram illustrating the correspondence between the transmission time unit lengths of the preamble signal and the downlink data signal provided in the embodiments of this application, as shown below. Figure 8 As shown, for example, three different transmission time unit lengths of preamble signals can be set, and the three different transmission time unit lengths of preamble signals correspond to three different transmission time unit lengths of downlink data signals.

[1278] exist Figure 8 In the example, the three preamble signals with different transmission time unit lengths are long preamble, medium preamble, and short preamble. The long preamble signal has a transmission time unit length of 12, meaning it consists of 12 transmission time units. Correspondingly, the downlink data signal with the long preamble signal has a transmission time unit length of 256, meaning it consists of 256 transmission time units.

[1279] The transmission time unit length of the middle preamble signal is 10, indicating that the middle preamble signal includes 10 transmission time units. Correspondingly, the transmission time unit length of the downlink data signal corresponding to the middle preamble signal is 64, indicating that the downlink data signal corresponding to the middle preamble signal includes 64 transmission time units.

[1280] The transmission time unit length of the short preamble signal is 8, indicating that the short preamble signal includes 8 transmission time units. Correspondingly, the transmission time unit length of the downlink data signal corresponding to the short preamble signal is 12, indicating that the downlink data signal corresponding to the short preamble signal includes 12 transmission time units.

[1281] Regarding the first indication signal, the first indication signal includes a first preamble signal. The transmission time unit length of the first downlink data signal can be determined by the transmission time unit length of the first preamble signal, and thus the data size of the first downlink data signal can be determined.

[1282] by Figure 8For example, if the transmission time unit length of the first preamble signal is 10, and considering the correspondence between the preamble signal and the data signal regarding the transmission time unit length, it can be known that the transmission time unit length of the first downlink data signal is 64.

[1283] For example, Y types of preamble signals can be preset. Each preamble signal of a transmission mode is associated with a downlink data signal of transmission time unit length. That is, there is a correlation or correspondence between the transmission mode of the preamble signal and the transmission time unit length of the downlink data signal. For each downlink data signal, as long as the transmission mode of its corresponding preamble signal is determined, the transmission time unit length of the downlink data signal can be determined, thereby determining the data size of the downlink data signal.

[1284] Taking Y transmission modes, including transmission mode 1, transmission mode 2, and transmission mode 3, as an example, the preamble signal of transmission mode 1 is 010101010101, and the corresponding transmission time unit length of the downlink data signal is 256; the preamble signal of transmission mode 2 is 011001100110, and the corresponding transmission time unit length of the downlink data signal is 64; the preamble signal of transmission mode 3 is 100010001000, and the corresponding transmission time unit length of the downlink data signal is 12.

[1285] Regarding the first indication signal, the first indication signal includes a first preamble signal. By using the transmission mode of the first preamble signal, the transmission time unit length of the first downlink data signal can be determined, and thus the data size of the first downlink data signal can be determined.

[1286] Optionally, the transmission mode of the first preamble signal can be pre-configured or generated according to predefined parameters or preset rules. For example, the first preamble signal can be an orthogonal sequence generated based on the identifier of the network device or intermediate node device as the initial parameter, and so on.

[1287] In the above embodiments, the first association relationship between the first indication signal and the first downlink data signal is described. After the network device and / or intermediate node device sends the first indication signal to the IoT device, the IoT device can obtain the synchronization and / or timing information of the first downlink data signal through the first indication signal and the first association relationship, and then receive the first downlink data signal to realize the transmission of data signal between the IoT device and the network device, or between the IoT device and the intermediate node device, thereby reducing the power consumption and latency of the IoT device receiving the downlink data signal.

[1288] The transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein the first downlink transmission duration satisfies the following terms 6.1 and / or 6.2:

[1289] 6.1 The first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal.

[1290] Optionally, M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number.

[1291] In this embodiment of the application, the first downlink data signal is one of a plurality of downlink data signals, and the plurality of downlink data signals are the downlink data signals corresponding to each of the plurality of downlink data in the downlink data packet.

[1292] If M1 is the number of transmission time units of the first indication signal, for multiple downlink data signals, the number of transmission time units of the indication signal corresponding to different downlink data signals may be different. Therefore, for different indication signals, M1 is a variable positive integer. If M1 is a first preset number, then even if the number of transmission time units of the indication signal corresponding to different downlink data signals is different, the required transmission time of the indication signals corresponding to multiple downlink data signals is the same, which is the first preset number of transmission time units of the first indication signal, and M1 is a constant positive integer.

[1293] If M2 is the number of transmission time units of the first downlink data signal, the number of transmission time units for different downlink data signals may be different. Therefore, M2 is a variable positive integer for different downlink data signals. If M2 is a second preset number, then even if the number of transmission time units for different downlink data signals is different, the required transmission time for multiple downlink data signals is the same, which is the second preset number of transmission time units of the first downlink data signal, and M2 is a constant positive integer.

[1294] In summary, in one implementation, the first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal. M1 is a fixed number (i.e., a first preset number), and M2 is a fixed number (i.e., a second preset number).

[1295] In one implementation, the first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal, wherein M1 is a fixed number (i.e., a first preset number) and M2 is a variable positive integer.

[1296] In one implementation, the first downlink transmission duration includes M transmission time units, which include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal, wherein M1 is a variable positive integer and M2 is a fixed number (i.e., a second preset number).

[1297] In one implementation, the first downlink transmission duration includes M transmission time units, which include M1 transmission time units for first indication signals and M2 transmission time units for first downlink data signals, wherein M1 is a variable positive integer and M2 is a variable positive integer.

[1298] 6.2 The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

[1299] Optionally, N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is the third preset quantity; N2 is the time window length of the first downlink data signal, or N2 is the fourth preset quantity.

[1300] In this embodiment of the application, the first downlink data signal is one of a plurality of downlink data signals, and the plurality of downlink data signals are the downlink data signals corresponding to each of the plurality of downlink data in the downlink data packet.

[1301] If N1 is the length of the time window used to transmit the first indication signal, the time window length of the indication signal corresponding to different downlink data signals may be different for multiple downlink data signals. Therefore, N1 is a variable positive integer for different indication signals. If N1 is a third preset number, then even if the time window length of the indication signal corresponding to different downlink data signals is different, the required transmission time for the indication signals corresponding to multiple downlink data signals is the same, which is the first preset number of time window lengths, and N1 is a constant positive integer.

[1302] If N2 is the length of the time window used to transmit the first downlink data signal, the time window lengths may be different for different downlink data signals. Therefore, N2 is a variable positive integer for different downlink data signals. If N2 is a fourth preset number, then even if the time window lengths of different downlink data signals are different, the transmission time required for multiple downlink data signals is the same, which is the second preset number of time window lengths, and N2 is a constant positive integer.

[1303] In summary, in one implementation, the first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal, wherein N1 is a fixed number (i.e., the third preset number) and N2 is a fixed number (i.e., the fourth preset number).

[1304] In one implementation, the first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal, wherein N1 is a fixed number (i.e., a third preset number) and N2 is a variable positive integer.

[1305] In one implementation, the first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal, wherein N1 is a variable positive integer and N2 is a fixed number (i.e., a fourth preset number).

[1306] In one implementation, the first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal, wherein N1 is a variable positive integer and N2 is a variable positive integer.

[1307] In the above embodiments, the first downlink transmission duration, which consists of the transmission duration of the first indication signal and the transmission duration of the first downlink data signal, was described. In this embodiment, the first downlink data signal is one of multiple downlink data signals corresponding to the downlink data packet. The total transmission duration of the downlink data packet will be described below.

[1308] Optionally, the total transmission duration of the downlink data packets satisfies at least one of the following conditions: 7.1 to 7.3:

[1309] 7.1 The total transmission time of downlink data packets includes at least one first downlink transmission time.

[1310] For example, if the downlink transmission duration constituted by multiple downlink data signals and corresponding indication signals is the first downlink transmission duration, then the total transmission duration of the downlink data packet includes at least one first downlink transmission duration.

[1311] 7.2 The total transmission time of downlink data packets includes the transmission time of each downlink data signal and the transmission time of the corresponding indication signal for each downlink data signal.

[1312] For example, the total transmission time of a downlink data packet includes X1 transmission time units for transmitting indication signals and X2 transmission time units for transmitting downlink data signals.

[1313] 7.3 The total transmission time of downlink data packets is indicated by the first control signaling or the indication signals corresponding to each of the multiple downlink data signals.

[1314] Optionally, for each downlink data signal, the first control signaling includes at least one of the following: downlink data signal size information, downlink data signal encoding method information, downlink data signal modulation method information, first indication information, and second indication information. The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among the multiple downlink data signals, and the second indication information is used to indicate whether the downlink data signal is the last downlink data signal among the multiple downlink data signals.

[1315] The total transmission time of downlink data packets can be explicitly or implicitly indicated through the first control signaling.

[1316] Figure 9 A schematic diagram of the first control signaling provided for embodiments of this application. Figure 1 ,like Figure 9 As shown, the first control signaling may include data size information of the downlink data signal, used to indicate the size of the downlink data signal, such as... Figure 9 The example in the text shows the Transport Block Size (TBS). The first control signaling may include modulation scheme information for the downlink data signal, used to indicate the modulation scheme of the downlink data signal, such as... Figure 9 The example in the text is a modulation and coding scheme (MCS).

[1317] By analyzing information such as the downlink data signal size, encoding method, and modulation method, the downlink data signal size can be calculated, and thus the required transmission time can be determined. For each downlink data packet, the required transmission time for each of the corresponding downlink data signals can be obtained using the above method. Adding this to the required transmission time for the corresponding indication signal yields the total transmission time of the downlink data packet.

[1318] exist Figure 9 The first control signaling indicates the TBS, MSC, and other information of the downlink data signal, thereby obtaining the total transmission time of the downlink data packet. In one possible implementation, for any downlink data signal, the TBS, MSC, and other information of the downlink data signal can also be indicated by the corresponding indication signal, thereby obtaining the total transmission time of the downlink data packet.

[1319] Optionally, the first control signaling may further include first indication information, which indicates a P value. The P value is the transmission duration required for the downlink data signal to be transmitted among multiple downlink data signals. The P value is updated after each downlink data signal transmission is completed. For example, if the transmission time units of the indication signal and the downlink data signal are equal, the P value is updated to PL; for example, if the transmission time unit of the indication signal is twice the transmission time unit of the downlink data signal, the P value is updated to P-2L, where L is the transmission time unit length of the downlink data signal transmitted in this instance.

[1320] In one possible implementation, for any downlink data signal, the required transmission time of the downlink data signal to be transmitted among multiple downlink data signals can be indicated by the indicator signal corresponding to the downlink data signal, thereby obtaining the total transmission time of the downlink data packet.

[1321] Figure 10 A schematic diagram of the first control signaling provided for embodiments of this application. Figure 2 ,like Figure 10 As shown, the first control signaling may include 1 bit of second indication information to indicate whether the downlink data signal is the last downlink data signal among a plurality of downlink data signals, that is, whether the downlink data signal is the last downlink data signal.

[1322] For example, if the first control signaling includes the second indication information, it indicates that the downlink data signal is the last downlink data signal among multiple downlink data signals. After the transmission of the downlink data signal is completed, the corresponding downlink data packet is also transmitted. If the first control signaling does not include the second indication information, it indicates that the downlink data signal is not the last downlink data signal among multiple downlink data signals, thus implicitly indicating the total transmission time of the downlink data packet.

[1323] For example, if the first control signaling includes second indication information, the value of the second indication information indicates whether the downlink data signal is the last downlink data signal among multiple downlink data signals. If yes, then after the transmission of the downlink data signal is completed, the corresponding downlink data packet is also transmitted. If no, it indicates that the downlink data signal is not the last downlink data signal among multiple downlink data signals, thus implicitly indicating the total transmission time of the downlink data packet.

[1324] In one possible implementation, the total transmission time of the downlink data packet can also be indicated by an indication signal corresponding to the downlink data signal.

[1325] For example, the transmission time unit length of the downlink data signal can be indicated by setting a correspondence between the transmission time unit length of the preamble signal in the indication signal and the transmission time unit length of the corresponding downlink data signal. The total transmission duration of the downlink data packet can be obtained by using the transmission time unit lengths of each of the multiple downlink data signals and the corresponding indication signal. The correspondence between the transmission time unit length of the preamble signal and the transmission time unit length of the corresponding downlink data signal can be found in the relevant description in the above embodiments, and will not be repeated here.

[1326] For example, the transmission time unit length of the downlink data signal can be indicated by setting a correspondence between the transmission mode of the preamble signal in the indication signal and the transmission time unit length of the corresponding downlink data signal. The total transmission duration of the downlink data packet can be obtained by using the transmission time unit lengths of each of the multiple downlink data signals and the corresponding transmission mode of the indication signal. The correspondence between the transmission mode of the preamble signal and the transmission time unit length of the corresponding downlink data signal can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[1327] In summary, the solution of this application embodiment uses the transmission duration of the first indication signal and the transmission duration of the first downlink data signal to constitute the first downlink transmission duration, thereby instructing the IoT device to receive the first downlink data signal in the corresponding time period, which can reduce the time for the IoT device to obtain the complete downlink data packet.

[1328] Figure 11 Flowchart of the signal transmission method provided in the embodiments of this application Figure 2 This method is applied to IoT devices, such as Figure 11 As shown, the method includes:

[1329] S111, a second indication signal is sent to the network device and / or intermediate node device, and there is a second correlation between the second indication signal and the first uplink data signal.

[1330] In the embodiments of this application, the IoT device can be a low-power A-IoT device or a regular interactive IoT device.

[1331] The IoT device configures or generates a second indication signal and sends the second indication signal to network devices and / or intermediate node devices. The second indication signal is obtained by encoding and modulating a corresponding sequence (e.g., a preamble sequence).

[1332] There is a second correlation between the second indication signal and the first downlink data signal. Based on the second indication signal, information related to the first uplink data signal can be determined for subsequent reception of the first uplink data signal. The second correlation and the second indication signal may, for example, indicate the transmission time information of the first uplink data signal, the encoding method of the first uplink data signal, the modulation method of the first uplink data signal, the data size of the first uplink data signal, and so on.

[1333] Optionally, the second indication signal may also be called a synchronization signal, timing signal, synchronization timing signal, uplink synchronization signal, uplink timing signal, uplink synchronization timing signal, or other possible names, which are not limited in this application embodiment.

[1334] S112, based on the second indication signal and the second association relationship, send the first uplink data signal to the network device and / or intermediate node device.

[1335] After the IoT device sends the second indication signal, the IoT device sends a first uplink data signal to the network device and / or intermediate node device based on the second indication signal and the second association relationship. Correspondingly, the network device and / or intermediate node device receives the first uplink data signal sent by the IoT device based on the second indication signal and the second association relationship.

[1336] In one possible implementation, the second association relationship includes the fifth to eighth items below, which are described in detail below:

[1337] Fifth, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal.

[1338] Optionally, the transmission time information of the first uplink data signal includes the start reception time of the first uplink data signal and / or the size of the transmission time unit of the first uplink data signal, wherein the transmission time unit of the first uplink data signal is the transmission duration required for each bit of data of the first uplink data signal.

[1339] Optionally, the second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

[1340] Optionally, at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

[1341] Optionally, the second preamble signal is a binary bit stream, which may be, for example, a bit stream of bits 0 and bits 1. The bit stream can be any of the following: an orthogonal sequence; a predefined sequence pattern; or a predefined bit pattern.

[1342] Optionally, at least one second preamble signal satisfies at least one of the following: at least one second preamble signal is transmitted on the configured bit stream; at least one second preamble signal is transmitted on its respective frequency domain resource; at least one second preamble signal is transmitted on its respective time domain resource.

[1343] In one possible implementation, the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[1344] The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal;

[1345] The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1.

[1346] The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals;

[1347] And / or,

[1348] The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following:

[1349] The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal;

[1350] The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1.

[1351] The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals;

[1352] Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the multiple uplink data signals are the uplink data signals corresponding to each of the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[1353] The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal is similar to the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1354] Item 6: The relationship between the encoding method of the second indicator signal and the encoding method of the first uplink data signal.

[1355] Encoding methods include encoding type and / or encoding parameters.

[1356] Optionally, the encoding method may include at least one of Manchester encoding, PIE encoding, FM0 encoding, Miller encoding, convolutional code, and Turbo encoding.

[1357] Optionally, the encoding parameters may include, for example, the bit rate of each bit encoding, the mapping method of bit 0, the mapping method of bit 1, the sampling rate of each bit encoding, the sampling time interval of each bit encoding, and the time length of each bit after encoding.

[1358] In one possible implementation, the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[1359] The encoding type of the second indication signal is the same as that of the first uplink data signal;

[1360] The encoding parameters of the second indication signal are the same as those of the first uplink data signal;

[1361] The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1;

[1362] The encoding parameter of the second indication signal is the minimum value among the encoding parameters of the multiple uplink data signals;

[1363] The encoding parameters of the second indicator signal are the maximum values ​​among the encoding parameters of the multiple uplink data signals;

[1364] And / or,

[1365] The second indication signal includes a third component and at least one fourth component. The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following:

[1366] The coding type of the third component is the same as that of the first uplink data signal;

[1367] The encoding parameters of the third component are the same as those of the first uplink data signal;

[1368] The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1;

[1369] The coding parameters of the third component are the minimum values ​​among the coding parameters of each of the multiple uplink data signals;

[1370] The coding parameters of the third component are the maximum values ​​among the coding parameters of each of the multiple uplink data signals;

[1371] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[1372] The relationship between the encoding method of the second indication signal and the encoding method of the first uplink data signal is similar to the relationship between the encoding method of the first indication signal and the encoding method of the first downlink data signal in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1373] Item 7: The correlation between the modulation method of the second indication signal and the modulation method of the first uplink data signal.

[1374] Modulation methods include modulation type and / or modulation parameters.

[1375] Optionally, the modulation method may include at least one of OOK modulation, FSK modulation, PSK modulation, and MSK modulation.

[1376] Optionally, modulation parameters may include, for example, the magnitude of the modulation / demodulation amplitude for each bit, the number of 0s and / or 1s mapped to bit 0, the number of 0s and / or 1s mapped to bit 1, the sampling rate for modulation / demodulation for each bit, the sampling time interval for modulation / demodulation for each bit, and the duration of each bit after modulation / demodulation.

[1377] In one possible implementation, the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[1378] The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal;

[1379] The modulation parameters of the second indication signal are the same as those of the first uplink data signal;

[1380] The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1;

[1381] The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals;

[1382] The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals;

[1383] And / or,

[1384] The second indication signal includes a third component and at least one second component. The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following:

[1385] The modulation type of the third component is the same as that of the first uplink data signal;

[1386] The modulation parameters of the third component are the same as those of the first uplink data signal;

[1387] The modulation parameters of the third component are 1 / J times the modulation parameters of the first uplink data signal, where J is a positive integer greater than 1.

[1388] The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals;

[1389] The modulation parameters of the third component are the maximum values ​​among the modulation parameters of each of the multiple uplink data signals;

[1390] Among them, the multiple uplink data signals are the uplink data signals corresponding to the multiple uplink data in the uplink data packet, and the first uplink data signal is one of the multiple uplink data signals.

[1391] The relationship between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal is similar to the relationship between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1392] Item 8: The correlation between the data size of the second indicator signal and the first uplink data signal.

[1393] The correlation between the data size of the second indication signal and the first uplink data signal is similar to the correlation between the data size of the first indication signal and the first downlink data signal in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1394] In one possible implementation, the transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein:

[1395] The first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal.

[1396] And / or,

[1397] The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

[1398] In one possible implementation, the first uplink transmission duration satisfies:

[1399] P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is the fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is the sixth preset number;

[1400] And / or,

[1401] Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is the seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is the eighth preset quantity.

[1402] In summary, in one implementation, the first uplink transmission duration includes P transmission time units, which include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal. Here, P1 is a fixed number (i.e., the fifth preset number) and P2 is a fixed number (i.e., the sixth preset number).

[1403] In one implementation, the first uplink transmission duration includes P transmission time units, which include P1 transmission time units for second indication signals and P2 transmission time units for first uplink data signals, wherein P1 is a fixed number (i.e., a fifth preset number) and P2 is a variable positive integer.

[1404] In one implementation, the first uplink transmission duration includes P transmission time units, which include P1 transmission time units for second indication signals and P2 transmission time units for first uplink data signals, wherein P1 is a variable positive integer and P2 is a fixed number (i.e., a sixth preset number).

[1405] In one implementation, the first uplink transmission duration includes P transmission time units, which include P1 transmission time units for second indication signals and P2 transmission time units for first uplink data signals, wherein P1 is a variable positive integer and P2 is a variable positive integer.

[1406] In summary, in one implementation, the first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal, wherein Q1 is a fixed number (i.e., the seventh preset number) and Q2 is a fixed number (i.e., the eighth preset number).

[1407] In one implementation, the first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal, wherein Q1 is a fixed number (i.e., the seventh preset number) and Q2 is a variable positive integer.

[1408] In one implementation, the first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal, wherein Q1 is a variable positive integer and Q2 is a fixed number (i.e., the eighth preset number).

[1409] In one implementation, the first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal, wherein Q1 is a variable positive integer and Q2 is a variable positive integer.

[1410] In one possible implementation, the first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following:

[1411] The total transmission time of the uplink data packets includes at least one first uplink transmission time;

[1412] The total transmission time of the uplink data packet includes the transmission time of each of the multiple uplink data signals, as well as the transmission time of the corresponding indicator signals of each of the multiple uplink data signals;

[1413] The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

[1414] In one possible implementation, the second control signaling includes at least one of the following for each uplink data signal:

[1415] Uplink data signal size information;

[1416] Information on the encoding method of uplink data signals;

[1417] Modulation information of the uplink data signal;

[1418] The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among multiple uplink data signals;

[1419] The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among multiple uplink data signals.

[1420] The implementation method of the second control signaling indicating the total transmission time of the uplink data packet is similar to the implementation method of the first control signaling indicating the total transmission time of the downlink data packet in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1421] In one possible implementation, for each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

[1422] The implementation method in which the transmission duration of the uplink data signal is indicated by the transmission duration of the corresponding indicator signal is similar to the implementation method in the above embodiment in which the transmission duration of the downlink data signal is indicated by the transmission duration of the corresponding indicator signal. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[1423] The impleme...

Claims

1. A signal transmission method, characterized in that, Applied to Internet of Things (IoT) devices, the method includes: Receive a first indication signal sent by a network device and / or an intermediate node device, wherein there is a first correlation relationship between the first indication signal and a first downlink data signal; Based on the first indication signal and the first association relationship, the first downlink data signal sent by the network device and / or intermediate node device is received.

2. The method according to claim 1, characterized in that, The first association includes at least one of the following: The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal; The correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal; The correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal; The correlation between the data size of the first indication signal and the first downlink data signal.

3. The method according to claim 2, characterized in that, The transmission time information of the first downlink data signal includes: The start time of receiving the first downlink data signal; and / or, The size of the transmission time unit of the first downlink data signal is the transmission time required for each bit of data in the first downlink data signal.

4. The method according to claim 3, characterized in that, The first indication signal includes at least one first preamble signal, which is used for synchronization and / or timing.

5. The method according to claim 4, characterized in that, The at least one first preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first downlink data signal.

6. The method according to claim 4, characterized in that, The first preamble signal is a binary bitstream, wherein the bitstream is any one of the following: Orthogonal sequences; Predefined sequence patterns; Predefined bit patterns.

7. The method according to any one of claims 3-6, characterized in that, The correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following: The transmission time unit of the first indication signal is equal to the transmission time unit of the first downlink data signal; The transmission time unit of the first indication signal is K1 times the transmission time unit of the first downlink data signal, where K1 is a positive integer greater than 1; The transmission time unit of the first indication signal is the minimum value among the transmission time units of the multiple downlink data signals; And / or, The first indication signal includes a first component and at least one second component, and the correlation between the transmission time information of the first indication signal and the transmission time information of the first downlink data signal satisfies at least one of the following: The transmission time unit of the first component is equal to the transmission time unit of the first downlink data signal; The transmission time unit of the first component is K2 times the transmission time unit of the first downlink data signal, where K2 is a positive integer greater than 1; The transmission time unit of the first component is the minimum value among the transmission time units of each of the multiple downlink data signals; Wherein, the transmission time unit of the first indication signal is the transmission time required for each bit of data of the first indication signal, the transmission time unit of the first component is the transmission time required for each bit of data of the first component, the plurality of downlink data signals are downlink data signals corresponding to each of the plurality of downlink data in the downlink data packet, and the first downlink data signal is one of the plurality of downlink data signals.

8. The method according to any one of claims 3-6, characterized in that, The at least one first preamble signal satisfies at least one of the following: The at least one first preamble signal is transmitted on a configured bit stream; The at least one first preamble signal is transmitted on its respective frequency domain resource; The at least one first preamble signal is transmitted on its respective time-domain resource.

9. The method according to any one of claims 3-6, characterized in that, The transmission duration of the first indication signal and the transmission duration of the first downlink data signal constitute the first downlink transmission duration, wherein: The first downlink transmission duration includes M transmission time units, wherein the M transmission time units include M1 transmission time units for the first indication signal and M2 transmission time units for the first downlink data signal; And / or, The first downlink transmission duration includes N time window lengths, which include N1 time window lengths for transmitting the first indication signal and N2 time window lengths for transmitting the first downlink data signal.

10. The method according to claim 9, characterized in that, The first downlink transmission duration satisfies: M = M1 + M2, where M1 is the number of transmission time units of the first indication signal, or M1 is a first preset number; M2 is the number of transmission time units of the first downlink data signal, or M2 is a second preset number; And / or, N = N1 + N2, where N1 is the time window length of the first indication signal, or N1 is a third preset number; N2 is the time window length of the first downlink data signal, or N2 is a fourth preset number.

11. The method according to claim 9, characterized in that, The first downlink data signal is one of a plurality of downlink data signals corresponding to a downlink data packet, and the total transmission duration of the downlink data packet satisfies at least one of the following: The total transmission duration of the downlink data packet includes at least one of the first downlink transmission durations; The total transmission time of the downlink data packet includes the transmission time of each of the plurality of downlink data signals, and the transmission time of the indication signal corresponding to each of the plurality of downlink data signals; The total transmission time of the downlink data packet is indicated by the first control signaling or the indication signal corresponding to each of the plurality of downlink data signals.

12. The method according to claim 11, characterized in that, For each downlink data signal, the first control signaling includes at least one of the following: The data size information of the downlink data signal; The encoding method information of the downlink data signal; The modulation scheme information of the downlink data signal; The first indication information is used to indicate the transmission duration required for the downlink data signal to be transmitted among the plurality of downlink data signals; The second indication information is used to indicate whether the downlink data signal is the last downlink data signal among the plurality of downlink data signals.

13. The method according to claim 11, characterized in that, For each downlink data signal, the transmission duration of the downlink data signal is indicated by the transmission duration of the indicator signal corresponding to the downlink data signal; and / or, the transmission duration of the downlink data signal is indicated by the transmission mode of the indicator signal corresponding to the downlink data signal.

14. The method according to claim 2, characterized in that, The encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following: The encoding type of the first indication signal is the same as the encoding type of the first downlink data signal; The encoding parameters of the first indication signal are the same as the encoding parameters of the first downlink data signal; The encoding parameters of the first indication signal are 1 / R times the encoding parameters of the first downlink data signal, where R is a positive integer greater than 1; The encoding parameters of the first indication signal are the minimum values ​​among the encoding parameters of the multiple downlink data signals; The encoding parameters of the first indication signal are the maximum values ​​among the encoding parameters of the multiple downlink data signals; And / or, The first indication signal includes a first component and at least one second component, and the correlation between the encoding method of the first indication signal and the encoding method of the first downlink data signal satisfies at least one of the following: The encoding type of the first component is the same as the encoding type of the first downlink data signal; The encoding parameters of the first component are the same as the encoding parameters of the first downlink data signal; The encoding parameters of the first component are 1 / L times the encoding parameters of the first downlink data signal, where L is a positive integer greater than 1; The encoding parameters of the first component are the minimum values ​​among the encoding parameters of the multiple downlink data signals; The encoding parameters of the first component are the maximum values ​​among the encoding parameters of the multiple downlink data signals; Wherein, the plurality of downlink data signals are downlink data signals corresponding to each of the plurality of downlink data in the downlink data packet, and the first downlink data signal is one of the plurality of downlink data signals.

15. The method according to claim 2, characterized in that, The modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following: The modulation type of the first indication signal is the same as the modulation type of the first downlink data signal; The modulation parameters of the first indication signal are the same as the modulation parameters of the first downlink data signal; The modulation parameter of the first indication signal is 1 / D times the modulation parameter of the first downlink data signal, where D is a positive integer greater than 1; The modulation parameter of the first indication signal is the minimum value among the modulation parameters of the multiple downlink data signals; The modulation parameter of the first indication signal is the maximum value among the modulation parameters of the multiple downlink data signals; And / or, The first indication signal includes a first component and at least one second component, and the correlation between the modulation scheme of the first indication signal and the modulation scheme of the first downlink data signal satisfies at least one of the following: The modulation type of the first component is the same as the modulation type of the first downlink data signal; The modulation parameters of the first component are the same as the modulation parameters of the first downlink data signal; The modulation parameter of the first component is 1 / F times the modulation parameter of the first downlink data signal, where F is a positive integer greater than 1; The modulation parameter of the first component is the minimum value among the modulation parameters of the multiple downlink data signals; The modulation parameter of the first component is the maximum value among the modulation parameters of the multiple downlink data signals; Wherein, the plurality of downlink data signals are downlink data signals corresponding to each of the plurality of downlink data in the downlink data packet, and the first downlink data signal is one of the plurality of downlink data signals.

16. A signal transmission method, characterized in that, Applied to network devices and / or intermediate nodes, the method includes: Send a first indication signal to an IoT device, wherein the first indication signal and a first downlink data signal have a first correlation relationship; Based on the first indication signal and the first association relationship, the first downlink data signal is sent to the IoT device.

17. A signal transmission method, characterized in that, Applied to Internet of Things (IoT) devices, the method includes: Send a second indication signal to network devices and / or intermediate node devices, wherein the second indication signal has a second correlation with the first uplink data signal; Based on the second indication signal and the second association relationship, the first uplink data signal is sent to the network device and / or intermediate node device.

18. The method according to claim 17, characterized in that, The second association includes at least one of the following: The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal; The correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal; The correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal; The correlation between the data size of the second indication signal and the first uplink data signal.

19. The method according to claim 18, characterized in that, The transmission time information of the first uplink data signal includes: The start time of receiving the first uplink data signal; and / or, The size of the transmission time unit of the first uplink data signal is the transmission time required for each bit of data in the first uplink data signal.

20. The method according to claim 19, characterized in that, The second indication signal includes at least one second preamble signal, which is used for synchronization and / or timing.

21. The method according to claim 20, characterized in that, The at least one second preamble signal indicates the start and / or end time of at least one transmission time unit in the transmission time unit of the first uplink data signal.

22. The method according to claim 20, characterized in that, The second preamble signal is a binary bitstream, wherein the bitstream is any one of the following: Orthogonal sequences; Predefined sequence patterns; Predefined bit patterns.

23. The method according to any one of claims 19-22, characterized in that, The correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following: The transmission time unit of the second indication signal is equal to the transmission time unit of the first uplink data signal; The transmission time unit of the second indication signal is G1 times the transmission time unit of the first uplink data signal, where G1 is a positive integer greater than 1; The transmission time unit of the second indication signal is the minimum value among the transmission time units of the multiple uplink data signals; And / or, The second indication signal includes a third component and at least one fourth component, and the correlation between the transmission time information of the second indication signal and the transmission time information of the first uplink data signal satisfies at least one of the following: The transmission time unit of the third component is equal to the transmission time unit of the first uplink data signal; The transmission time unit of the third component is G2 times the transmission time unit of the first uplink data signal, where G2 is a positive integer greater than 1. The transmission time unit of the third component is the minimum value among the transmission time units of each of the multiple uplink data signals; Wherein, the transmission time unit of the second indication signal is the transmission time required for each bit of data of the second indication signal, the transmission time unit of the third component is the transmission time required for each bit of data of the third component, the plurality of uplink data signals are the uplink data signals corresponding to each of the plurality of uplink data in the uplink data packet, and the first uplink data signal is one of the plurality of uplink data signals.

24. The method according to any one of claims 19-22, characterized in that, The at least one second preamble signal satisfies at least one of the following: The at least one second preamble signal is transmitted on the configured bit stream; The at least one second preamble signal is transmitted on its respective frequency domain resource; The at least one second preamble signal is transmitted on its respective time-domain resource.

25. The method according to any one of claims 19-22, characterized in that, The transmission duration of the second indication signal and the transmission duration of the first uplink data signal constitute the first uplink transmission duration, wherein: The first uplink transmission duration includes P transmission time units, wherein the P transmission time units include P1 transmission time units for the second indication signal and P2 transmission time units for the first uplink data signal; And / or, The first uplink transmission duration includes Q time window lengths, which include Q1 time window lengths for transmitting the second indication signal and Q2 time window lengths for transmitting the first uplink data signal.

26. The method according to claim 25, characterized in that, The first uplink transmission duration satisfies: P = P1 + P2, where P1 is the number of transmission time units of the second indication signal, or P1 is a fifth preset number; P2 is the number of transmission time units of the first uplink data signal, or P2 is a sixth preset number. And / or, Q = Q1 + Q2, where Q1 is the time window length of the second indication signal, or Q1 is a seventh preset quantity; Q2 is the time window length of the first uplink data signal, or Q2 is an eighth preset quantity.

27. The method according to claim 25, characterized in that, The first uplink data signal is one of a plurality of uplink data signals corresponding to the uplink data packet, and the total transmission duration of the uplink data packet satisfies at least one of the following: The total transmission duration of the uplink data packet includes at least one of the first uplink transmission durations; The total transmission time of the uplink data packet includes the transmission time of each of the plurality of uplink data signals, and the transmission time of the indication signal corresponding to each of the plurality of uplink data signals; The total transmission time of the uplink data packet is indicated by the second control signaling or the indication signal corresponding to each of the multiple uplink data signals.

28. The method according to claim 27, characterized in that, For each uplink data signal, the second control signaling includes at least one of the following: The data size information of the uplink data signal; The encoding method information of the uplink data signal; The modulation scheme information of the uplink data signal; The third indication information is used to indicate the transmission duration required for the uplink data signal to be transmitted among the plurality of uplink data signals; The fourth indication information is used to indicate whether the uplink data signal is the last uplink data signal among the plurality of uplink data signals.

29. The method according to claim 27, characterized in that, For each uplink data signal, the transmission duration of the uplink data signal is indicated by the transmission duration of the indicator signal corresponding to the uplink data signal; and / or, the transmission duration of the uplink data signal is indicated by the transmission mode of the indicator signal corresponding to the uplink data signal.

30. The method according to claim 18, characterized in that, The encoding method includes encoding type and / or encoding parameters, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following: The encoding type of the second indication signal is the same as the encoding type of the first uplink data signal; The encoding parameters of the second indication signal are the same as those of the first uplink data signal; The encoding parameters of the second indication signal are 1 / X times the encoding parameters of the first uplink data signal, where X is a positive integer greater than 1; The encoding parameter of the second indication signal is the minimum value among the encoding parameters of each of the multiple uplink data signals; The encoding parameter of the second indication signal is the maximum value among the encoding parameters of each of the multiple uplink data signals; And / or, The second indication signal includes a third component and at least one fourth component, and the correlation between the encoding method of the second indication signal and the encoding method of the first uplink data signal satisfies at least one of the following: The encoding type of the third component is the same as the encoding type of the first uplink data signal; The encoding parameters of the third component are the same as the encoding parameters of the first uplink data signal; The encoding parameters of the third component are 1 / Y times the encoding parameters of the first uplink data signal, where Y is a positive integer greater than 1; The encoding parameters of the third component are the minimum values ​​among the encoding parameters of each of the multiple uplink data signals; The encoding parameters of the third component are the maximum values ​​among the encoding parameters of each of the multiple uplink data signals; Wherein, the plurality of uplink data signals are the uplink data signals corresponding to each of the plurality of uplink data in the uplink data packet, and the first uplink data signal is one of the plurality of uplink data signals.

31. The method according to claim 18, characterized in that, The modulation scheme includes modulation type and / or modulation parameters, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following: The modulation type of the second indication signal is the same as the modulation type of the first uplink data signal; The modulation parameters of the second indication signal are the same as those of the first uplink data signal; The modulation parameter of the second indication signal is 1 / H times the modulation parameter of the first uplink data signal, where H is a positive integer greater than 1; The modulation parameter of the second indication signal is the minimum value among the modulation parameters of the multiple uplink data signals; The modulation parameter of the second indication signal is the maximum value among the modulation parameters of the multiple uplink data signals; And / or, The second indication signal includes a third component and at least one fourth component, and the correlation between the modulation scheme of the second indication signal and the modulation scheme of the first uplink data signal satisfies at least one of the following: The modulation type of the third component is the same as the modulation type of the first uplink data signal; The modulation parameters of the third component are the same as the modulation parameters of the first uplink data signal; The modulation parameter of the third component is 1 / J times the modulation parameter of the first uplink data signal, where J is a positive integer greater than 1; The modulation parameters of the third component are the minimum values ​​among the modulation parameters of the multiple uplink data signals; The modulation parameters of the third component are the maximum values ​​among the modulation parameters of the multiple uplink data signals; Wherein, the plurality of uplink data signals are the uplink data signals corresponding to each of the plurality of uplink data in the uplink data packet, and the first uplink data signal is one of the plurality of uplink data signals.

32. A signal transmission method, characterized in that, Applied to network devices and / or intermediate node devices, the method includes: Receive a second indication signal sent by an IoT device, wherein the second indication signal has a second correlation with the first uplink data signal; Based on the second indication signal and the second association relationship, the first uplink data signal sent by the IoT device is received.

33. A signal transmission device, characterized in that, The device, used in Internet of Things (IoT) devices, includes: a memory, a transceiver, and a processor. The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Receive a first indication signal sent by a network device and / or an intermediate node device, wherein there is a first correlation relationship between the first indication signal and a first downlink data signal; Based on the first indication signal and the first association relationship, the first downlink data signal sent by the network device and / or intermediate node device is received.

34. A signal transmission device, characterized in that, Applied to network devices and / or intermediate node devices, the device includes: a memory, a transceiver, and a processor. The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Send a first indication signal to an IoT device, wherein the first indication signal and a first downlink data signal have a first correlation relationship; Based on the first indication signal and the first association relationship, the first downlink data signal is sent to the IoT device.

35. A signal transmission device, characterized in that, The device, used in Internet of Things (IoT) devices, includes: a memory, a transceiver, and a processor. The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Send a second indication signal to network devices and / or intermediate node devices, wherein the second indication signal has a second correlation with the first uplink data signal; Based on the second indication signal and the second association relationship, the first uplink data signal is sent to the network device and / or intermediate node device.

36. A signal transmission device, characterized in that, Applied to network devices and / or intermediate node devices, the device includes: a memory, a transceiver, and a processor. The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Receive a second indication signal sent by an IoT device, wherein the second indication signal has a second correlation with the first uplink data signal; Based on the second indication signal and the second association relationship, the first uplink data signal sent by the IoT device is received.

37. A signal transmission device, characterized in that, The device is applied to Internet of Things (IoT) devices and includes: The first receiving module is configured to receive a first indication signal sent by a network device and / or an intermediate node device, wherein the first indication signal has a first correlation relationship with a first downlink data signal; The second receiving module is configured to receive the first downlink data signal sent by the network device and / or intermediate node device based on the first indication signal and the first association relationship.

38. A signal transmission device, characterized in that, Applied to network devices and / or intermediate node devices, the apparatus includes: The first transmitting module is configured to transmit a first indication signal to an Internet of Things (IoT) device, wherein the first indication signal and a first downlink data signal have a first correlation relationship. The second transmitting module is used to transmit the first downlink data signal to the IoT device based on the first indication signal and the first association relationship.

39. A signal transmission device, characterized in that, The device is applied to Internet of Things (IoT) devices and includes: The third sending module is used to send a second indication signal to the network device and / or intermediate node device, wherein the second indication signal has a second correlation relationship with the first uplink data signal; The fourth sending module is used to send the first uplink data signal to the network device and / or intermediate node device based on the second indication signal and the second association relationship.

40. A signal transmission device, characterized in that, Applied to network devices and / or intermediate node devices, the apparatus includes: The third receiving module is used to receive a second indication signal sent by an IoT device, wherein there is a second correlation relationship between the second indication signal and the first uplink data signal. The fourth receiving module is used to receive the first uplink data signal sent by the IoT device based on the second indication signal and the second association relationship.

41. A non-transiently readable storage medium, characterized in that, The non-transiently readable storage medium stores a computer program that causes a processor to perform the method of any one of claims 1-15, or the method of claim 16, or the method of any one of claims 17-31, or the method of claim 32.

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