Signal sending method, communication device, communication system and storage medium

Abstract

The present disclosure relates to a signal sending method, a communication device, a communication system and a storage medium. The signal sending method comprises: a first device receiving first information; and on the basis of the first information, determining whether to send a first signal, wherein the first signal is used for energy charging and / or information bearing and / or backscatter. Therefore, it is possible to flexibly control the sending of a signal for energy charging and / or information bearing and / or backscatter.

Description

Signaling method, communication device, communication system, and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, to a signaling method, a communication device, a communication system, and a storage medium. BACKGROUND

[0002] One of the significant features of an ambient Internet of Things (AIOT) system is that the number of AIOT terminals that can access the network is large, the AIOT system structure is simple, the hardware cost and maintenance cost are low, and the power consumption is low. Therefore, the AIOT system can be used for a long time without replacing the battery.

[0003] SUMMARY

[0004] Embodiments of the present disclosure provide a signaling method, a terminal, a device, a chip system, a storage medium, a computer program, and a computer program product, which can be applied in the technical field of communication, and are used to solve the technical problem that in the related art, the signaling for charging and / or carrying information and / or backscattering cannot be flexibly controlled.

[0005] The present disclosure provides a signaling method, a communication device, a communication system, and a storage medium.

[0006] According to a first aspect of embodiments of the present disclosure, a signaling method is provided, executed by a first device, comprising: receiving first information; determining whether to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0007] According to a second aspect of embodiments of the present disclosure, a signaling method is provided, executed by a second device and / or a third device, comprising: sending first information, wherein the first information is used for the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0008] According to a third aspect of embodiments of the present disclosure, a signaling method is provided, comprising: the second device and / or the third device sending first information; and the first device receiving the first information and determining whether to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0009] According to a fourth aspect of embodiments of the present disclosure, a first device is provided, comprising: a transceiver module, configured to receive first information and determine whether to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0010] According to a fifth aspect of the embodiments of the present disclosure, a second device or a third device is provided, comprising: a transceiver, configured to transmit first information, wherein the first information is used by the first device to determine whether to transmit a first signal, and the first signal is used to charge and / or carry information and / or backscatter.

[0011] According to a sixth aspect of the embodiments of the present disclosure, a communication device is provided, comprising: one or more processors; wherein the processor is configured to invoke instructions to cause the communication device to perform the signal transmission method in any one of the first aspect, the second aspect or the third aspect.

[0012] According to a seventh aspect of the embodiments of the present disclosure, a communication system is provided, comprising: a first device, a second device and / or a third device, wherein the first device is configured to implement the signal transmission method in the first aspect, and the second device and / or the third device is configured to implement the signal transmission method in the second aspect.

[0013] According to an eighth aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, and the instructions, when executed on a communication device, cause the communication device to perform the signal transmission method in any one of the first aspect, the second aspect or the third aspect.

[0014] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the signal transmission method in any one of the first aspect, the second aspect or the third aspect. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background art, the drawings needed to be used in the embodiments of the present disclosure or the background art will be described below.

[0016] FIG. 1A is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0017] FIG. 1B is a schematic diagram of an architecture of another communication system according to an embodiment of the present disclosure;

[0018] FIG. 2A is an interaction diagram of a signal transmission method according to an embodiment of the present disclosure;

[0019] FIG. 2B is an interaction diagram of a signal transmission method according to another embodiment of the present disclosure;

[0020] FIG. 3A is an interaction diagram of a signal transmission method according to another embodiment of the present disclosure;

[0021] FIG. 3B is an interaction diagram of a signal transmission method according to another embodiment of the present disclosure;

[0022] FIG. 3C is an interaction diagram of a signal sending method according to another embodiment of the present disclosure;

[0023] FIG. 4A is an interaction diagram of a signal sending method according to another embodiment of the present disclosure;

[0024] FIG. 4B is an interaction diagram of a signal sending method according to another embodiment of the present disclosure;

[0025] FIG. 5 is an interaction diagram of a signal sending method according to another embodiment of the present disclosure;

[0026] FIG. 6A is a schematic diagram of a topology 1 in an embodiment of the present disclosure;

[0027] FIG. 6B is a schematic diagram of a topology 2 in an embodiment of the present disclosure;

[0028] FIG. 6C is a schematic diagram of a topology 2 in another embodiment of the present disclosure;

[0029] FIG. 6D is a schematic diagram of a topology 2 in another embodiment of the present disclosure;

[0030] FIG. 6E is a schematic diagram of an application in an embodiment of the present disclosure;

[0031] FIG. 6F is a schematic diagram of an application in another embodiment of the present disclosure;

[0032] FIG. 6G is a schematic diagram of an application in another embodiment of the present disclosure;

[0033] FIG. 6H is a schematic diagram of an application in another embodiment of the present disclosure;

[0034] FIG. 6I is a schematic diagram of an application in another embodiment of the present disclosure;

[0035] FIG. 7A is a schematic diagram of a structure of a first device according to an embodiment of the present disclosure;

[0036] FIG. 7B is a schematic diagram of a structure of a second device or a third device according to an embodiment of the present disclosure;

[0037] FIG. 8A is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure;

[0038] FIG. 8B is a schematic diagram of a structure of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The present disclosure provides a signal sending method, a communication device, a communication system, and a storage medium.

[0040] In a first aspect, the present disclosure provides a signal sending method, executed by a first device; the method comprises:

[0041] receiving first information;

[0042] According to the first information, it is determined whether to send the first signal, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0043] In the above embodiment, the first device can receive the first information, and determine whether to send the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering. The sending of the signal used for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the first signal includes a carrier CW.

[0045] In the above embodiment, the sending of the carrier CW can be flexibly controlled.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the carrier CW includes at least one single-frequency non-modulated sinusoidal wave.

[0047] In the above embodiment, the accuracy and control effect of the carrier CW sending control can be supported to be improved.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a first value or a second value, wherein the first value is used to indicate to send the first signal, and the second value is used to indicate not to send the first signal.

[0049] In the above embodiment, the first device can be flexibly indicated whether to send the first signal.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate to send the first signal, and the second cyclic shift is used to indicate not to send the first signal.

[0051] In the above embodiment, the first device can be flexibly indicated whether to send the first signal.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the method further includes:

[0053] determining second information;

[0054] sending the first signal according to the second information.

[0055] In the above embodiment, since the first device is triggered by the second device and / or the third device, the first device can send the first signal based on the second information determined autonomously. Thus, the sending of the signal used for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0056] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0057] receiving third information;

[0058] determining the second information according to the third information;

[0059] transmitting the first signal according to the second information.

[0060] In the above embodiments, since the first device is triggered by the second device and / or the third device, the second information can be determined based on the third information transmitted by the second device and / or the third device, and the first signal can be transmitted based on the second information. Thus, the transmission of the signal for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0061] In some embodiments of the first aspect, in some embodiments, the second information comprises at least one of:

[0062] a transmission start time;

[0063] a transmission duration;

[0064] a number of single-frequency non-modulated sinusoidal waves;

[0065] a transmission frequency corresponding to each single-frequency non-modulated sinusoidal wave;

[0066] a total transmission power of the first signal.

[0067] In the above embodiments, the transmission of the first signal can be on-demand, and the flexibility of the transmission of the first signal can be improved.

[0068] In some embodiments of the first aspect, in some embodiments, a time offset of the transmission start time relative to a first time is greater than or equal to 0, and the first time is a time of receiving the first information.

[0069] In the above embodiments, the on-demand transmission of the first signal can be flexibly supported.

[0070] In some embodiments of the first aspect, in some embodiments, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0071] In the above embodiments, the effect of the transmission of the first signal can be improved, and the interference between different single-frequency non-modulated sinusoidal waves can be effectively reduced.

[0072] In some embodiments of the first aspect, in some embodiments, the third information comprises at least one of:

[0073] a time offset, the time offset being used to determine the transmission start time;

[0074] first indication information, the first indication information indicating a reference starting moment;

[0075] second indication information, the second indication information indicating a time interval between two adjacent times of sending the first signal;

[0076] third indication information, the third indication information indicating a reference duration;

[0077] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, the first information received again being used to trigger stopping sending the first signal;

[0078] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulation sinusoidal waves;

[0079] sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulation sinusoidal wave;

[0080] a frequency domain offset, the frequency domain offset being used to determine a sending frequency of the single-frequency non-modulation sinusoidal wave;

[0081] a total sending power of the first signal.

[0082] In the above embodiments, the flexibility and effectiveness of the first signal sending control can be greatly improved, and personalized sending requirements can be supported, which is effectively applicable to personalized communication scenarios.

[0083] With reference to some embodiments of the first aspect, in some embodiments, the frequency type comprises at least one of:

[0084] a maximum frequency;

[0085] a minimum frequency;

[0086] a center frequency.

[0087] In the above embodiments, the first device can flexibly determine the sending frequency used for sending the first signal.

[0088] With reference to some embodiments of the first aspect, in some embodiments, the sending starting moment is determined according to the third information, including any one of:

[0089] a moment having a time offset relative to the reference moment is taken as the sending starting moment;

[0090] the reference starting moment is taken as the sending starting moment;

[0091] the sending starting moment is determined based on the time interval.

[0092] In the above embodiment, the transmission start moment for transmitting the first signal can be accurately determined.

[0093] In some embodiments of the first aspect, the reference moment is determined based on any one of the following:

[0094] a time domain resource based on the third information;

[0095] a system time.

[0096] In the above embodiment, the transmission start moment for transmitting the first signal can be effectively and quickly determined.

[0097] In some embodiments of the first aspect, the transmission duration is determined according to the third information, including any one of the following:

[0098] the reference duration is taken as the transmission duration;

[0099] a duration between the transmission start moment and a moment of receiving the first information again is taken as the transmission duration;

[0100] a duration between two adjacent time intervals is taken as the transmission duration.

[0101] In the above embodiment, the transmission duration for transmitting the first signal can be accurately determined.

[0102] In some embodiments of the first aspect, the number and transmission frequency of the single-frequency non-modulated sinusoidal wave are determined according to the third information, including:

[0103] a reference number of the single-frequency non-modulated sinusoidal wave is taken as the number of the single-frequency non-modulated sinusoidal wave;

[0104] the transmission frequency of the single-frequency non-modulated sinusoidal wave is determined based on a reference frequency, a frequency type and a frequency domain offset of at least one single-frequency non-modulated sinusoidal wave.

[0105] In the above embodiment, the number and transmission frequency of the single-frequency non-modulated sinusoidal wave can be accurately determined.

[0106] In some embodiments of the first aspect, the third information is received, including:

[0107] the third information transmitted by the second device and / or the third device is received.

[0108] In the above embodiment, the flexibility of the third information indication can be improved, and the third information can be effectively applied to the personalized communication scenario.

[0109] In some embodiments of the first aspect, in some embodiments, the receiving the first information comprises:

[0110] The first information is received by the second device and / or the third device.

[0111] In the above embodiments, the flexibility of the indication of the first information can be improved, and the personalized communication scenario can be effectively applied.

[0112] In some embodiments of the first aspect, in some embodiments, the third information is carried based on at least one of the following:

[0113] A physical downlink control channel (PDCCH);

[0114] A physical downlink shared channel (PDSCH);

[0115] A medium access control control element (MAC CE);

[0116] A radio resource control (RRC) signaling message.

[0117] In the above embodiments, the flexibility of the sending of the third information can be effectively supported.

[0118] In some embodiments of the first aspect, in some embodiments, the first device comprises at least one of the following:

[0119] An intermediate node terminal;

[0120] An access network device;

[0121] A terminal type carrier node.

[0122] In the above embodiments, the personalized application scenario can be supported.

[0123] In some embodiments of the first aspect, in some embodiments, the first information is carried based on at least one of the following:

[0124] A PDCCH;

[0125] A PDSCH;

[0126] A MAC CE;

[0127] An RRC signaling message.

[0128] In the above embodiments, the flexibility of the sending of the first information can be effectively supported.

[0129] In a second aspect, the embodiments of the present disclosure provide a signal sending method, executed by a second device and / or a third device; the method comprises:

[0130] transmitting first information, wherein the first information is used for the first device to determine whether to transmit a first signal, the first signal being used for energizing and / or carrying information and / or backscattering.

[0131] In some embodiments combining with the second aspect, in some embodiments, the first signal comprises: a carrier wave CW.

[0132] In some embodiments combining with the second aspect, in some embodiments, the carrier wave CW comprises: at least one single frequency non-modulated sinusoidal wave.

[0133] In some embodiments combining with the second aspect, in some embodiments, the first information comprises: a first value or a second value, wherein the first value is used to indicate to transmit the first signal, and the second value is used to indicate not to transmit the first signal.

[0134] In some embodiments combining with the second aspect, in some embodiments, the first information comprises: a sequence, the sequence having a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate to transmit the first signal, and the second cyclic shift is used to indicate not to transmit the first signal.

[0135] In some embodiments combining with the second aspect, in some embodiments, the method further comprises:

[0136] transmitting third information, wherein the third information is used for the first device to determine the second information, the second information being used for transmitting the first signal.

[0137] In some embodiments combining with the second aspect, in some embodiments, the second information comprises at least one of:

[0138] a start time;

[0139] a duration;

[0140] a number of single frequency non-modulated sinusoidal waves;

[0141] a transmission frequency corresponding to each single frequency non-modulated sinusoidal wave.

[0142] a total transmission power of the first signal.

[0143] In some embodiments combining with the second aspect, in some embodiments, a time offset of the start time relative to a first time is greater than or equal to 0, the first time being a time of receiving the first information.

[0144] In some embodiments combining with the second aspect, in some embodiments, the transmission frequencies of different single frequency non-modulated sinusoidal waves are different.

[0145] In some embodiments combining with the second aspect, in some embodiments, the third information comprises at least one of:

[0146] time offset, the time offset being used for determining a transmission starting time point;

[0147] first indication information, the first indication information indicating a reference starting time point;

[0148] second indication information, the second indication information indicating a time interval between two adjacent transmissions of the first signal;

[0149] third indication information, the third indication information indicating a reference duration;

[0150] fourth indication information, the fourth indication information indicating that the first signal is continuously transmitted before the first information is received again, the first information received again being used for triggering a stop of the transmission of the first signal;

[0151] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sinusoidal waves;

[0152] sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sinusoidal wave;

[0153] frequency domain offset, the frequency domain offset being used for determining a transmission frequency of the single-frequency non-modulated sinusoidal wave.

[0154] total transmission power of the first signal.

[0155] In combination with some embodiments of the second aspect, in some embodiments, the frequency type comprises at least one of:

[0156] maximum frequency;

[0157] minimum frequency;

[0158] center frequency.

[0159] In combination with some embodiments of the second aspect, in some embodiments, the third information is carried based on at least one of:

[0160] physical downlink control channel (PDCCH);

[0161] physical downlink shared channel (PDSCH);

[0162] medium access control (MAC) control element (CE);

[0163] radio resource control (RRC) signaling message.

[0164] In combination with some embodiments of the second aspect, in some embodiments, the second device comprises an access network device, and the third device comprises an intermediate node terminal.

[0165] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried based on at least one of:

[0166] PDCCH;

[0167] PDSCH;

[0168] MAC CE;

[0169] RRC signaling message.

[0170] In a third aspect, a signal sending method is provided. The method comprises:

[0171] The second device and / or the third device sends the first information;

[0172] The first device receives the first information, and determines whether to send the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0173] In a fourth aspect, a first device is provided. The first device comprises:

[0174] The transceiver module is configured to receive the first information, and determine whether to send the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0175] In a fifth aspect, a second device or a third device is provided. The second device or the third device comprises:

[0176] The transceiver module is configured to send the first information, wherein the first information is used for the first device to determine whether to send the first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0177] In a sixth aspect, a communication device is provided. The communication device comprises:

[0178] One or more processors;

[0179] The processor is configured to execute the signal sending method of any one of the first aspect, the second aspect, or the third aspect.

[0180] In a seventh aspect, a communication system is provided. The communication system comprises a first device, a second device, and / or a third device, wherein the first device is configured to implement the communication method of the first aspect, and the second device and / or the third device is configured to implement the communication method of the second aspect.

[0181] In an eighth aspect, a storage medium is provided. The storage medium stores instructions, which, when executed on a communication device, cause the communication device to execute the signal sending method of any one of the first aspect, the second aspect, or the third aspect.

[0182] Ninthly, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, implements a signal transmission method as described in any of the first, second, and third aspects.

[0183] It is understood that the above-described signal transmission method, first device, second device, third device, communication device, chip system, storage medium, computer program, and computer program product are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0184] This disclosure provides a signal transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "signal transmission method" and "information processing method," "communication method," etc., can be used interchangeably; the terms "signal transmission apparatus" and "information processing apparatus," "communication apparatus," etc., can be used interchangeably; and the terms "information processing system," "communication system," etc., can be used interchangeably.

[0185] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0186] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0187] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0188] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0189] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0190] In some embodiments, the terms “at least one of”, “one or more of”, “a plurality of”, “multiple”, and the like can be replaced with each other.

[0191] In some embodiments, the description of “at least one of A, B” “A and / or B”, “in one case A, in another case B”, “in response to a case A, in response to a case B”, and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selected from A and B); in some embodiments, A and B (A and B are executed). When there are more branches such as A, B, C, and the like, it is similar to the above.

[0192] In some embodiments, the description of “A or B” and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selected from A and B). When there are more branches such as A, B, C, and the like, it is similar to the above.

[0193] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0194] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0195] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0196] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0197] In some embodiments, the apparatuses and devices can be interpreted as entities, and can also be interpreted as virtual, whose names are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0198] In some embodiments, "network" can be interpreted as an apparatus contained in the network, for example, access network device, core network device, etc.

[0199] In some embodiments, "access network device (AN device)" can also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments can also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0200] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, and / or the like.

[0201] In some embodiments, data, information, and / or the like can be obtained in compliance with laws and regulations of a country in which a location is situated.

[0202] In some embodiments, data, information, and / or the like can be obtained after consent of a user is obtained.

[0203] FIG. 1A is a schematic diagram of an architecture of a communication system, according to embodiments of the present disclosure.

[0204] As shown in FIG. 1A, the communication system 1100 can include a first AIOT device 1101 and a second AIOT device 1102.

[0205] In some embodiments, the first AIOT device 1101 can be any one of a terminal, a network device, an intermediate node, an auxiliary node, and / or the like.

[0206] In some embodiments, the second AIOT device 1102 can be any one of a network device, an intermediate node, an auxiliary node, and / or the like.

[0207] In some embodiments, the intermediate node can be a relay, an Integrated Access Backhaul (IAB) node, a User Equipment (UE), a repeater (RP), and the like.

[0208] In some embodiments, as shown in FIG. 1A, taking the first AIOT device 1101 as a terminal and the second AIOT device 1102 as a base station as an example, the first AIOT device 1101 and the base station can directly perform DL and UL data reception and transmission. The first AIOT device 1101 can be directly connected to the base station (BS: basestation) and perform bidirectional communication. The communication content between the first AIOT device 1101 and the base station includes data, signaling, and the like. FIG. 1A also includes another possible case, in which the base station 1 sends downlink to the first AIOT device 1101, and the first AIOT device 1101 sends uplink to the base station 2. At this time, the base stations of the downlink and the corresponding uplink of the same service communication can be different base stations.

[0209] In some embodiments, as shown in FIG. 1B, FIG. 1B is a schematic diagram of another communication system architecture according to an embodiment of the present disclosure. As shown in FIG. 1B, the second AIOT device 1102 is an intermediate node, and the first AIOT device 1101 and the base station can also indirectly perform DL and UL data reception and transmission through the second AIOT device 1102. The first AIOT device 1101 can perform bidirectional communication with the intermediate node, and the intermediate node and the base station can perform bidirectional communication according to cellular communication. The intermediate node can be regarded as a relay between the first AIOT device 1101 and the base station, and the intermediate node supports the ability to communicate with Ambient IoT devices. The intermediate node performs bidirectional transmission of data and signaling between the base station and the first AIOT device 1101 to complete communication.

[0210] In some embodiments, the terminal includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a tablet (Pad), a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and the like, but is not limited thereto.

[0211] In some embodiments, the access network device is at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, and the like, but is not limited thereto.

[0212] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, in which case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0213] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, with some of the protocol layers being controlled by the CU and the rest or all of the protocol layers being distributed in the DUs and controlled by the CU, but is not limited thereto.

[0214] In some embodiments, the communication system can further include a core network device (not shown in the figure). The core network device can be one device including one or more network elements, or can be multiple devices or groups of devices including all or part of the one or more network elements described above. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC), for example.

[0215] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. Those skilled in the art can know that, as the system architecture evolves and new business scenarios appear, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0216] The embodiments of the present disclosure described below can be applied to the communication system shown in FIG. 1A and FIG. 1B, or part of the subject, but are not limited thereto. The subjects shown in FIG. 1A and FIG. 1B are examples, and the communication system can include all or part of the subjects in FIG. 1A and FIG. 1B, or other subjects other than those in FIG. 1A and FIG. 1B. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is an example, each subject can not be connected or can be connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0217] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), 6th generation mobile communication system (6G), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0218] Optionally, the AIOT devices can be divided into AIOT devices of type A (Device A), AIOT devices of type B (Device B), and AIOT devices of type C (Device C). Among them, the AIOT devices of type A cannot independently generate / amplify signals, for example, can use the working mode of backscatter. But it does not have the ability of DL signal and / or UL signal amplification. The AIOT devices of type B have energy storage capability, but cannot independently generate signals. For example, it can use the working mode of backscatter. And use the stored energy for DL signal and / or UL signal amplification. The AIOT devices of type A / AIOT devices of type B can use relatively simple modulation and demodulation modes, such as On-Off Keying (OOK) modulation / Phase Shift Keying (PSK) modulation, etc. The AIOT devices of type C have energy storage capability and can independently generate signals, for example, have a radio frequency (RF) module that actively transmits signals. The AIOT devices of type C can also use high-complexity modulation and demodulation modes, such as Orthogonal Frequency Division Multiplexing (OFDM) modulation and demodulation. The uplink signal or downlink signal can be amplified.

[0219] Optionally, among the above three types, the Device C has the strongest capability and the highest cost. The Device A has the weakest capability and the lowest cost. In addition, the Device A / B can only use the working mode of backscatter and cannot actively transmit signals. When it needs to transmit information, it needs to have an external carrier wave (CW) for backscatter to support a smaller coverage range, but the power consumption of the working mode of the Device A / Device B is much smaller than that of the Device C.

[0220] Optionally, based on backscatter operation, the AIOT device needs an energy source (also can be called as CW node) to provide carrier wave (CW) for it to reflect when transmitting data. The CW is generally constant amplitude. The CW node can be a separate node or a base station / intermediate node (such as UE) in communication with the AIOT device. The AIOT device reflects the received CW, loads the signaling / data to be transmitted onto the reflected wave, and transmits the reflected wave. The reflected wave and the CW are the same frequency or have a certain frequency offset. At the same time, the CW can also charge the AIOT device. For example, the AIOT device can receive a wireless signal CW, activate the internal receiving processing module, and start working to encode and modulate the signaling / data to be uploaded by the AIOT device.

[0221] Optionally, the AIOT device has the characteristics of small memory, low processing capability, low power consumption, small amount of data transmission, large connection, and high coverage. Therefore, the design of the downlink channel in the AIOT scenario needs to consider these characteristics comprehensively, and some channel designs can be simplified to reduce the complexity of implementation and the complexity of products.

[0222] Optionally, in the Ambient IoT application, the link and channel of the physical layer are specified (the reader can be a base station or an intermediate UE). R2D represents Reader-to-Device (reader to device), corresponding to the physical channel (Physical Reader-to-Device Channel, PRDCH). D2R represents Device-to-Reader (device to reader), corresponding to the physical channel (Physical Device-to-Reader Channel, PDRCH). CW2D represents carrier-wave-to-device (carrier wave to device).

[0223] Optionally, for Ambient IoT devices that cannot actively transmit, an external carrier wave CW needs to be provided to the Ambient IoT device for backscatter of the Ambient IoT device. When the carrier wave CW is provided by an access network device (such as a base station) or an intermediate node terminal (such as an intermediate node UE) contained in the topology, it can be considered that the carrier wave CW is from inside the topology (CW from inside topology); when the carrier wave CW is provided by a node outside the topology, it can be considered that the carrier wave CW is from outside the topology (CW from outside topology).

[0224] FIG. 2A is an interaction diagram of a signal sending method according to an embodiment of the present disclosure. As shown in FIG. 2A, the embodiments of the present disclosure relate to a signal sending method, which can be used in the communication system 100, and the method comprises:

[0225] In step S2101, the second device and / or the third device sends first information.

[0226] In some embodiments, the second device can be, for example, a network device, specifically, for example, a base station, without limitation.

[0227] In some embodiments, the third device can be, for example, an intermediate node terminal (for example, an intermediate UE), without limitation.

[0228] In some embodiments, the first device can be a device that sends the first signal.

[0229] In some embodiments, the first device comprises at least one of the following: an intermediate node terminal (for example, an intermediate UE); an access network device (for example, a base station); a terminal type carrier node (for example, a UE type CWN). Thus, personalized application scenarios are supported.

[0230] In some embodiments, the above-mentioned intermediate node terminal (for example, an intermediate UE) can be inside the topology, and the intermediate UE can be used as a reader for sending R2D and / or receiving D2R. The above-mentioned access network device (for example, a base station) can be inside the topology, and the access network device (for example, a base station) can be used as a reader for sending R2D and / or receiving D2R. The above-mentioned terminal type carrier node (for example, a UE type CWN) can be outside the topology, and the CWN cannot be used as a reader.

[0231] In some embodiments, the terminal type carrier node (for example, a UE type CWN) can comprise: a general terminal, which only has NR uplink and downlink functions and a function of sending a CW. A terminal supporting AIoT functions supports both NR uplink and downlink functions and a function of sending a CW, and also supports sending R2D and receiving D2R. A terminal that only supports sending a CW is not limited.

[0232] The first information is used by the first device to determine whether to transmit the first signal. The first information can be a trigger information, and the first device can refer to the first information to determine whether to transmit the first signal or to determine not to transmit the first signal (stop transmitting the first signal), without any limitation.

[0233] In some embodiments, the first signal is used for energizing and / or carrying information and / or backscattering. The first signal can be used for energizing, or used for carrying information, or used for backscattering. The first signal can also be used to realize a combination of at least two of the foregoing, without any limitation.

[0234] In some embodiments, the second device can indicate the first information to the first device; or the third device can indicate the first information to the first device; or the second device and the third device can jointly indicate the first information to the first device, without any limitation.

[0235] In some embodiments, the first signal includes a carrier CW. In this way, the transmission of the carrier CW can be flexibly controlled.

[0236] Of course, the first signal can also include any other possible signal with the function of energizing and / or carrying information and / or backscattering, without any limitation.

[0237] In some embodiments, the carrier CW can include at least one single-frequency non-modulated sinusoidal wave. In this way, the accuracy and control effect of the carrier CW transmission control can be improved.

[0238] That is to say, in some embodiments, the carrier CW can include one single-frequency non-modulated sinusoidal wave; or two single-frequency non-modulated sinusoidal waves; or more than two single-frequency non-modulated sinusoidal waves, without any limitation.

[0239] In some embodiments, the first information can include a first value or a second value, wherein the first value is used to indicate the transmission of the first signal, and the second value is used to indicate the non-transmission of the first signal. The first value and the second value are different. In this way, the first device can be flexibly indicated whether to transmit the first signal.

[0240] In some embodiments, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate the transmission of the first signal, and the second cyclic shift is used to indicate the non-transmission of the first signal. The first cyclic shift and the second cyclic shift are different. In this way, the first device can be flexibly indicated whether to transmit the first signal.

[0241] In some embodiments, when the sending end of the first information (an optional example of the second device) is an access network device (e.g., a base station), the first information is carried based on at least one of the following: a physical downlink control channel (PDCCH); a physical layer through a physical downlink shared channel (PDSCH); a media access control-control element (MAC-CE); a radio resource control (RRC) signaling message. Thus, the flexibility of sending the first information can be effectively supported.

[0242] In step S2102, the first device determines to send the first signal according to the first information.

[0243] In some embodiments, after receiving the first information, the first device can determine whether to send the first signal based on the first information. For example, if the first signal contains a first value, it is determined to send the first signal. Or if the first signal contains a first cyclic shift, it is determined to send the first signal.

[0244] In other embodiments, if it is determined not to send the first signal based on the first information, steps S2103 and S2104 can also not be performed, which is not limited. For example, if the first signal contains a second value, it is determined not to send the first signal. Or if the first signal contains a second cyclic shift, it is determined not to send the first signal.

[0245] In step S2103, the first device determines the second information.

[0246] In some embodiments, after determining to send the first signal, the first device can autonomously determine the second information, which refers to characteristic information of sending the first signal.

[0247] In some embodiments, the first information can contain the second information. After receiving the first information and determining to send the first signal, the first device can parse the second information from the first information; or after receiving the first information and determining to send the first signal, the first device can determine the pre-defined second information, which is not limited.

[0248] In some embodiments, the second information includes at least one of the following: a sending start time; a sending duration; a number of single-frequency non-modulated sinusoidal waves; a sending frequency corresponding to each single-frequency non-modulated sinusoidal wave; and a total sending power of the first signal. Thus, the on-demand sending of the first signal can be achieved, and the sending flexibility of the first signal can be improved.

[0249] The sending start time refers to a start time of sending the first signal. The sending duration refers to a duration of sending the first signal. The number of single-frequency non-modulated sinusoidal waves can be at least one. The sending frequency refers to a frequency used for sending the corresponding single-frequency non-modulated sinusoidal wave.

[0250] The total sending power of the first signal refers to a power used for sending the first signal. If the first signal contains one single-frequency non-modulated sinusoidal wave, the total sending power of the first signal is the power of the single-frequency non-modulated sinusoidal wave. If the first signal contains two or more single-frequency non-modulated sinusoidal waves, the total sending power of the first signal is the sum of the sending powers of the two or more single-frequency non-modulated sinusoidal waves. The single-frequency non-modulated sinusoidal waves can be evenly distributed with the total sending power.

[0251] In some embodiments, if the first signal contains two or more single-frequency non-modulated sinusoidal waves, the total sending power of the first signal can be evenly distributed to each single-frequency non-modulated sinusoidal wave.

[0252] In some embodiments, the time offset of the sending start time relative to the first time is greater than or equal to 0, and the first time is a time of receiving the first information. In this way, the on-demand sending of the first signal can be flexibly supported.

[0253] In some embodiments, the sending frequencies of different single-frequency non-modulated sinusoidal waves are different. In this way, the effect of sending the first signal can be improved, and the interference between different single-frequency non-modulated sinusoidal waves can be effectively reduced.

[0254] In step S2104, the first device sends the first signal according to the second information.

[0255] In some embodiments, after determining to send the first signal and determining the second information used for sending the first signal, the first device can send the first signal based on the second information.

[0256] In an example, the first signal can be sent based on at least one of the sending start time, the sending duration, the number of single-frequency non-modulated sinusoidal waves, the sending frequency corresponding to each single-frequency non-modulated sinusoidal wave, and the total sending power of the first signal in the second information.

[0257] The signal sending method related to the embodiments of the present disclosure can include at least one of steps S2101-S2104. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and so on, but is not limited thereto. Steps S2101+S2102 can be implemented as an independent embodiment, but are not limited thereto.

[0258] In the embodiments or examples, each step can be independent, arbitrarily combined or exchanged in sequence, optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0259] In the embodiments, the second device and / or the third device sends the first information, the first device determines to send the first signal according to the first information, and determines the second information, and the first device sends the first signal according to the second information. Since the first device can send the first signal based on the autonomously determined second information under the triggering of the second device and / or the third device, the signal transmission for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0260] It should be noted that in the following examples, the description of the same or corresponding terms and method steps as in the above examples can be referred to the above examples, and the following will not be repeated.

[0261] FIG. 2B is an interaction diagram of a signal transmission method according to another embodiment of the present disclosure. As shown in FIG. 2B, the embodiments of the present disclosure relate to a signal transmission method, which can be used in the communication system 100, and the above method includes:

[0262] In step S2201, the second device and / or the third device sends the first information.

[0263] In step S2202, the first device determines to send the first signal according to the first information.

[0264] The description of steps S2201-S2202 can be specifically referred to the above embodiments, which will not be repeated here.

[0265] In step S2203, the second device and / or the third device sends the third information.

[0266] The third information can be used to determine the second information.

[0267] In some embodiments, the second device and / or the third device can support the first device to determine the appropriate second information by sending the third information to the first device.

[0268] In the embodiments of the present disclosure, the first information and the third information can be sent by the same device, such as being sent by the second device or being sent by the third device. Or the first information can be sent by the second device, and the third information can be sent by the third device. Or the first information can be sent by the third device, and the third information can be sent by the second device. This is not limited.

[0269] In some embodiments, when the third information is sent by an access network device (e.g., a base station), the third information is carried based on at least one of the following: a physical downlink control channel (PDCCH); a physical downlink shared channel (PDSCH); a medium access control (MAC) control element; and a radio resource control (RRC) signaling message. Thus, the flexibility of sending the third information can be effectively improved.

[0270] In some embodiments, the third information includes at least one of the following: a time offset used to determine a sending starting time; first indication information indicating a reference starting time; second indication information indicating a time interval between two adjacent sending of the first signal; third indication information indicating a reference duration; fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the received first information is used to trigger the stopping of sending the first signal; fifth indication information indicating a reference number of the single-frequency non-modulation sinusoidal wave; sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulation sinusoidal wave; a frequency domain offset used to determine a sending frequency of the single-frequency non-modulation sinusoidal wave; and a total sending power of the first signal. Thus, the flexibility and effectiveness of the sending control of the first signal can be greatly improved, and personalized sending requirements can be supported, which is effectively applicable to personalized communication scenarios.

[0271] In some embodiments, the time offset is a time offset relative to a reference time. The second device and / or the third device can indicate a time offset to the first device to support the first device to determine a suitable sending starting time.

[0272] In some embodiments, the reference time can be a first time at which the first device receives the first information, and no limitation is imposed thereon.

[0273] In some embodiments, the second device and / or the third device can send the first indication information to the first device to directly indicate a reference starting time to the first device based on the first indication information, and the reference starting time can be directly used to send the first signal.

[0274] In some embodiments, the second device and / or the third device can send the second indication information to the first device to indicate a time interval between two adjacent sending of the first signal to the first device based on the second indication information, and the time interval can also be used by the first device to determine a sending starting time, such as not sending the first signal within the time interval and sending the first signal between the time intervals, and no limitation is imposed thereon.

[0275] In some embodiments, the second device and / or the third device can send third indication information to the first device to indicate to the first device a reference duration based on the third indication information, which can be used by the first device to determine the duration of sending the first signal.

[0276] In some embodiments, the second device and / or the third device can send fourth indication information to the first device to indicate to the first device to continuously send the first signal until the first information is received again, which is used to trigger the stopping of sending the first signal. Then the first device can determine the duration of sending the first signal based on the fourth indication information.

[0277] In some embodiments, the second device and / or the third device can send fifth indication information to the first device to indicate to the first device a reference number of single frequency non-modulated sinusoidal waves, such as sending one single frequency non-modulated sinusoidal wave; or sending two single frequency non-modulated sinusoidal waves; or sending more than two single frequency non-modulated sinusoidal waves.

[0278] In some embodiments, the second device and / or the third device can send sixth indication information to the first device to indicate to the first device a reference frequency and a frequency type of at least one single frequency non-modulated sinusoidal wave. The first device can refer to the sixth indication information to determine the sending frequency of each single frequency non-modulated sinusoidal wave.

[0279] In some embodiments, the frequency type includes at least one of the following: maximum frequency; minimum frequency; center frequency. In this way, the first device can flexibly determine the sending frequency used to send the first signal.

[0280] In some embodiments, the second device and / or the third device can indicate to the first device a frequency domain offset, which can be referred to by the first device to determine the sending frequency of each single frequency non-modulated sinusoidal wave.

[0281] In some embodiments, the second device and / or the third device can indicate to the first device the total sending power of the first signal, which can be referred to by the first device to determine the sending power of each single frequency non-modulated sinusoidal wave.

[0282] In step S2204, the first device determines the second information according to the third information.

[0283] In some embodiments, after receiving the third information sent by the second device and / or the third device, the first device can refer to the third information to determine the second information used to send the first signal.

[0284] In some embodiments, the third information is used to determine the starting time of the first signal transmission, including any of the following: a time point with a time offset from the reference time point is determined as the starting time of the first signal transmission; the reference starting time is determined as the starting time of the first signal transmission; and the starting time of the first signal transmission is determined based on a time interval. In this way, the starting time of the first signal transmission can be determined accurately.

[0285] In some embodiments, the reference time point is determined based on any of the following: a time domain resource based on the third information; and a system time. In this way, the starting time of the first signal transmission can be determined effectively and quickly.

[0286] In some embodiments, the first device can determine a time point with a time offset from the reference time point as the starting time of the first signal transmission.

[0287] In some embodiments, the first device can directly determine the reference starting time indicated by the second device and / or the third device as the starting time of the first signal transmission.

[0288] In some embodiments, the first device can determine the starting time of the first signal transmission based on a time interval. For example, the first signal is not transmitted in the time interval, and the first signal is transmitted between adjacent time intervals. In this way, the end time of each time interval can be determined as the starting time of the first signal transmission.

[0289] In some embodiments, the third information is used to determine the duration of the first signal transmission, including any of the following: the reference duration is determined as the duration of the first signal transmission; the duration between the starting time of the first signal transmission and the time point when the first information is received again is determined as the duration of the first signal transmission; and the duration between adjacent time intervals is determined as the duration of the first signal transmission. In this way, the duration of the first signal transmission can be determined accurately.

[0290] In some embodiments, the first device can directly determine the reference duration indicated by the second device and / or the third device as the duration of the first signal transmission.

[0291] In some embodiments, if the duration between the starting time of the first signal transmission and the time point when the first information is received again is determined as the duration of the first signal transmission, the first device can continuously transmit the first signal, and the first information received again is used to trigger the stop of the first signal transmission.

[0292] In some embodiments, after the first device receives the time interval indicated by the second device and / or the third device, the duration between adjacent time intervals can be determined as the duration of the first signal transmission. In other words, the first signal can be continuously transmitted between adjacent time intervals, and the first signal is not transmitted in the time interval.

[0293] In some embodiments, the determining, according to the third information, the number of the single-frequency non-modulation sinusoidal waves and the transmission frequency of the single-frequency non-modulation sinusoidal waves comprises: taking a reference number of the single-frequency non-modulation sinusoidal waves as the number of the single-frequency non-modulation sinusoidal waves; and determining the transmission frequency of the single-frequency non-modulation sinusoidal waves based on the reference frequency of at least one single-frequency non-modulation sinusoidal wave, the frequency type, and the frequency domain offset. In this way, the number of the single-frequency non-modulation sinusoidal waves and the transmission frequency of the single-frequency non-modulation sinusoidal waves can be accurately determined.

[0294] In step S2205, the first signal is transmitted according to the second information.

[0295] In some embodiments, after the first device determines to transmit the first signal and determines the second information used for transmitting the first signal based on the third information, the first device can transmit the first signal based on the second information.

[0296] In some embodiments, the first signal can be transmitted based on at least one of the start time of transmission, the duration of transmission, the number of the single-frequency non-modulation sinusoidal waves, the transmission frequency corresponding to each single-frequency non-modulation sinusoidal wave, the total transmission power of the first signal, and the like in the second information.

[0297] The signal transmission method according to the embodiments of the present disclosure can include at least one of steps S2201-S2205. For example, step S2201 can be implemented as an independent embodiment, step S2202 can be implemented as an independent embodiment, and so on, but is not limited thereto. Steps S2201+S2202 can be implemented as an independent embodiment, but are not limited thereto.

[0298] In the present embodiment or example, each step can be independent, arbitrarily combined, or the order can be exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0299] In the present embodiment, the second device and / or the third device transmits the first information, and the first device determines to transmit the first signal according to the first information. The second device and / or the third device transmits the third information, and the first device determines the second information according to the third information, and transmits the first signal according to the second information. Since the first device is triggered by the second device and / or the third device, the first device can further determine the second information based on the third information transmitted by the second device and / or the third device, and transmit the first signal based on the second information. In this way, the signal transmission for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0300] FIG. 3A is an interaction diagram of a signal sending method according to another embodiment of the present disclosure. As shown in FIG. 3A, the embodiment of the present disclosure relates to a signal sending method. The above method is performed by a first device. The above method comprises the following steps.

[0301] Step S3101: receiving first information.

[0302] Step S3102: determining whether to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0303] The signal sending method according to the embodiment of the present disclosure can comprise at least one of steps S3101-S3102. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, and so on, but is not limited thereto. Steps S3101+S3102 can be implemented as an independent embodiment, but are not limited thereto.

[0304] In the present embodiment or example, each step can be independently combined or exchanged in order, and optional modes or examples can be combined with any step of other embodiments or other examples.

[0305] FIG. 3B is an interaction diagram of a signal sending method according to another embodiment of the present disclosure. As shown in FIG. 3B, the embodiment of the present disclosure relates to a signal sending method. The above method is performed by a first device. The above method comprises the following steps.

[0306] Step S3201: receiving first information.

[0307] Step S3202: determining to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0308] Step S3203: determining second information.

[0309] Step S3204: sending the first signal according to the second information.

[0310] The signal sending method according to the embodiment of the present disclosure can comprise at least one of steps S3201-S3204. For example, step S3201 can be implemented as an independent embodiment, step S3202 can be implemented as an independent embodiment, and so on, but is not limited thereto. Steps S3201+S3202 can be implemented as an independent embodiment, but are not limited thereto.

[0311] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples without contradiction.

[0312] FIG. 3C is an interaction diagram of a signal sending method according to another embodiment of the present disclosure. As shown in FIG. 3C, the embodiment of the present disclosure relates to a signal sending method. The method is performed by a first device. The method comprises:

[0313] Step S3301, receiving first information.

[0314] Step S3302, determining to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0315] Step S3303, receiving third information.

[0316] Step S3304, determining second information according to the third information.

[0317] Step S3305, sending the first signal according to the second information.

[0318] It should be noted that the steps S3301 and S3303 have no order, the first information can be received first, and then the third information is received, or the third information can be received first, and then the first information is received, or the first information and the third information can be received at the same time, which is not limited.

[0319] The signal sending method related to the embodiment of the present disclosure can include at least one of steps S3301-S3305. For example, step S3301 can be implemented as an independent embodiment, step S3302 can be implemented as an independent embodiment, and so on, but not limited thereto. Steps S3301+S3302 can be implemented as an independent embodiment, but not limited thereto.

[0320] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples without contradiction.

[0321] In some embodiments of the present disclosure, the first signal includes a carrier CW.

[0322] In some embodiments of the present disclosure, the carrier CW includes at least one single frequency non-modulated sine wave.

[0323] In some embodiments of the present disclosure, the first information comprises a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0324] In some embodiments of the present disclosure, the first information comprises a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate sending the first signal, and the second cyclic shift is used to indicate not sending the first signal.

[0325] In some embodiments of the present disclosure, the second information comprises at least one of:

[0326] a sending starting moment;

[0327] a sending duration;

[0328] a number of single-frequency non-modulation sinusoidal waves;

[0329] a sending frequency corresponding to each single-frequency non-modulation sinusoidal wave;

[0330] a total sending power of the first signal.

[0331] In some embodiments of the present disclosure, a time offset of the sending starting moment relative to a first moment is greater than or equal to 0, and the first moment is a moment of receiving the first information.

[0332] In some embodiments of the present disclosure, the sending frequencies of different single-frequency non-modulation sinusoidal waves are different.

[0333] In some embodiments of the present disclosure, the third information comprises at least one of:

[0334] a time offset used to determine the sending starting moment;

[0335] first indication information indicating a reference starting moment;

[0336] second indication information indicating a time interval between two adjacent sending of the first signal;

[0337] third indication information indicating a reference duration;

[0338] fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping sending the first signal;

[0339] fifth indication information indicating a reference number of single-frequency non-modulation sinusoidal waves;

[0340] sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulation sinusoidal wave.

[0341] a frequency domain offset, the frequency domain offset being used to determine a transmission frequency of the single-frequency non-modulated sinusoidal wave;

[0342] a total transmission power of the first signal.

[0343] In some embodiments of the present disclosure, the frequency type comprises at least one of:

[0344] a maximum frequency;

[0345] a minimum frequency;

[0346] a center frequency.

[0347] In some embodiments of the present disclosure, the transmission start moment is determined according to the third information, comprising any one of:

[0348] a moment having a time offset relative to the reference moment as the transmission start moment;

[0349] the reference start moment as the transmission start moment;

[0350] the transmission start moment is determined based on the time interval.

[0351] In some embodiments of the present disclosure, the reference moment is determined based on any one of:

[0352] a time domain resource determination based on the third information;

[0353] a system time determination.

[0354] In some embodiments of the present disclosure, the transmission duration is determined according to the third information, comprising any one of:

[0355] the reference duration as the transmission duration;

[0356] a duration between the transmission start moment and a moment when the first information is received again as the transmission duration;

[0357] a duration between two adjacent time intervals as the transmission duration.

[0358] In some embodiments of the present disclosure, the transmission number and the transmission frequency of the single-frequency non-modulated sinusoidal wave are determined according to the third information, comprising:

[0359] a reference number of the single-frequency non-modulated sinusoidal wave as the transmission number of the single-frequency non-modulated sinusoidal wave;

[0360] the transmission frequency of the single-frequency non-modulated sinusoidal wave is determined based on a reference frequency of at least one single-frequency non-modulated sinusoidal wave, the frequency type and the frequency domain offset.

[0361] In some embodiments of the present disclosure, the third information is received, comprising:

[0362] The third information is sent by the second device and / or the third device.

[0363] In some embodiments of the present disclosure, the first information is received, comprising:

[0364] The first information is sent by the second device and / or the third device.

[0365] In some embodiments of the present disclosure, the third information is carried based on at least one of the following:

[0366] Physical Downlink Control Channel (PDCCH);

[0367] Physical Downlink Shared Channel (PDSCH);

[0368] Medium Access Control Control Element (MAC CE);

[0369] Radio Resource Control (RRC) signaling message.

[0370] In some embodiments of the present disclosure, the first device comprises at least one of the following:

[0371] Intermediate node terminal;

[0372] Access network device;

[0373] Terminal type carrier node.

[0374] In some embodiments of the present disclosure, the first information is carried based on at least one of the following:

[0375] PDCCH;

[0376] PDSCH;

[0377] MAC CE;

[0378] RRC signaling message.

[0379] FIG. 4A is an interaction diagram of a signal sending method according to yet another embodiment of the present disclosure. As shown in FIG. 4A, the present embodiment relates to a signal sending method. The method is performed by the second device and / or the third device. The above method comprises:

[0380] Step S4101, sending first information, wherein the first information is used for the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0381] The signal sending method related to the embodiments of the present disclosure can comprise step S4101. For example, step S4101 can be implemented as an independent embodiment, but is not limited thereto.

[0382] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples without contradiction.

[0383] FIG. 4B is an interaction diagram of a signal sending method according to another embodiment of the present disclosure. As shown in FIG. 4B, the embodiment of the present disclosure relates to a signal sending method. The method is performed by a second device and / or a third device. The method comprises:

[0384] In step S4201, first information is sent, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used to charge and / or carry information and / or backscatter.

[0385] In step S4202, third information is sent, wherein the third information is used by the first device to determine second information, and the second information is used to send the first signal.

[0386] It should be noted that the steps S4201 and S4202 have no order, the first information can be sent first, then the third information, or the third information can be sent first, then the first information, or the first information and the third information can be sent at the same time, which is not limited.

[0387] The signal sending method related by the embodiment of the present disclosure can include at least one of steps S4201-S4202. For example, step S4201 can be implemented as an independent embodiment, step S4202 can be implemented as an independent embodiment, and the like, but is not limited thereto. Steps S4201+S4202 can be implemented as an independent embodiment, but are not limited thereto.

[0388] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples without contradiction.

[0389] In some embodiments of the present disclosure, the first signal includes a carrier wave CW.

[0390] In some embodiments of the present disclosure, the carrier wave CW includes at least one single frequency non-modulated sine wave.

[0391] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0392] In some embodiments of the present disclosure, the first information comprises a sequence, the sequence having a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate sending the first signal, and the second cyclic shift is used to indicate not sending the first signal.

[0393] In some embodiments of the present disclosure, the second information comprises at least one of:

[0394] a sending start time;

[0395] a sending duration;

[0396] a number of single-frequency non-modulated sinusoidal waves;

[0397] a sending frequency corresponding to each single-frequency non-modulated sinusoidal wave.

[0398] a total sending power of the first signal.

[0399] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, the first time being a time of receiving the first information.

[0400] In some embodiments of the present disclosure, the sending frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0401] In some embodiments of the present disclosure, the third information comprises at least one of:

[0402] a time offset, the time offset being used to determine the sending start time;

[0403] first indication information, the first indication information indicating a reference start time;

[0404] second indication information, the second indication information indicating a time interval between two adjacent times of sending the first signal;

[0405] third indication information, the third indication information indicating a reference duration;

[0406] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, the first information received again being used to trigger stopping sending the first signal;

[0407] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sinusoidal waves;

[0408] sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sinusoidal wave;

[0409] a frequency domain offset, the frequency domain offset being used to determine the sending frequency of the single-frequency non-modulated sinusoidal wave.

[0410] Total transmission power of the first signal.

[0411] In some embodiments of the present disclosure, the frequency type comprises at least one of:

[0412] Maximum frequency;

[0413] Minimum frequency;

[0414] Center frequency.

[0415] In some embodiments of the present disclosure, the third information is carried based on at least one of:

[0416] Physical downlink control channel (PDCCH);

[0417] Physical downlink shared channel (PDSCH);

[0418] Medium access control control element (MAC CE);

[0419] Radio resource control (RRC) signaling message.

[0420] In some embodiments of the present disclosure, the second device comprises an access network device, and the third device comprises an intermediate node terminal.

[0421] In some embodiments of the present disclosure, the first information is carried based on at least one of:

[0422] PDCCH;

[0423] PDSCH;

[0424] MAC CE;

[0425] RRC signaling message.

[0426] FIG. 5 is an interaction diagram of a signal transmission method according to still another embodiment of the present disclosure. As shown in FIG. 5, the present embodiment relates to a signal transmission method. The method is performed by a communication system. The method comprises:

[0427] In step S5101, the second device and / or the third device transmits first information.

[0428] In step S5102, the first device receives the first information, and determines whether to transmit a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0429] The signal sending method related to the embodiments of the present disclosure can include at least one of steps S5101-S5102. For example, step S5101 can be implemented as an independent embodiment, step S5102 can be implemented as an independent embodiment, and the like, but is not limited thereto. Steps S5101+S5102 can be implemented as an independent embodiment, but are not limited thereto.

[0430] In the present embodiment or example, each step can be independently combined or exchanged in order, and optional modes or examples can be combined with any step of other embodiments or other examples, without contradiction.

[0431] The above embodiments are illustrated as follows:

[0432] In the following examples, the first device is taken as a carrier-wave node (CWN) for example.

[0433] The present disclosure provides a scheme in which a carrier-wave node receives control information to trigger it to send a carrier wave for backscattering by an A-IoT device in an Ambient IoT system, including:

[0434] The network / base station or intermediate node UE sends indication information to the carrier-wave node, and the carrier-wave node determines the characteristics of the sent carrier wave according to the content of the indication information.

[0435] The carrier-wave node controls the carrier-wave node to start sending a carrier wave or stop sending a carrier wave according to the received indication information "start" or "stop".

[0436] The carrier-wave node sends a continuous carrier wave with a duration of T each time it receives the indication information "start".

[0437] The indication information contains the characteristics of the carrier wave, such as the starting point, duration, and frequency, and the carrier-wave node sends the carrier wave according to these characteristics according to the received indication information.

[0438] The indication information / configuration information (used to configure the characteristics of the carrier wave, such as duration and frequency) triggers the information to indicate "start", and the carrier-wave node sends the carrier wave according to the indication information / configuration information+trigger information.

[0439] The carrier-wave node sends the carrier wave according to the indication information or configuration information.

[0440] The present disclosure provides a method in which a carrier-wave node receives control information to trigger it to send a carrier wave CW for backscattering by an A-IoT device in an Ambient IoT system.

[0441] The control information (may be the first information and an optional example of the third information) can come from the network (e.g. base station) or the reader (base station or intermediate node (intermediate UE)). The control information can contain configuration information (an optional example of the third information) and / or trigger information (an optional example of the first information). According to the specific content of the received control information, the CWN determines the transmission characteristics of the CW (an optional example of the second information), which can include the starting point of the CW (an optional example of the transmission starting time), the time length (an optional example of the transmission duration), the frequency (an optional example of the transmission frequency), etc.

[0442] For example:

[0443] Scheme A: The carrier node starts to transmit the carrier or stops transmitting the carrier according to the received information A1 (an optional example of the first information).

[0444] Method 1: Information A1 consists of 1 bit, and bit positions "1" or "0" correspond to "start transmitting carrier" or "stop transmitting carrier" respectively.

[0445] The above "1" or "0" can also correspond to "stop" or "start".

[0446] After receiving the "start" indication, the carrier node starts to continuously transmit the carrier, and stops transmitting the carrier only after receiving the "stop" indication.

[0447] Method 2: The specific information of information A1 is carried by a sequence, and the sequence carries "start transmitting carrier" or "stop transmitting carrier" by changing.

[0448] The cyclic shift-1 of the sequence corresponds to "start transmitting carrier". The cyclic shift-2 of the sequence corresponds to "stop transmitting carrier".

[0449] The transmission mode of the above "start transmitting carrier" includes: continuously transmitting a single frequency sine wave; or continuously transmitting two single frequency sine waves; or continuously transmitting N (N>2) single frequency sine waves.

[0450] The time offset Δt between the receiving time point of information A1 (an optional example of the first time) and the starting time of transmitting the carrier (an optional example of the transmission starting time) is greater than or equal to 0.

[0451] The transmitting end of the above information A1 (an optional example of the second device and / or the third device) includes the base station and / or the intermediate node UE. The above information A1 is carried by PRDCH at the physical layer.

[0452] Scheme B is an extended scheme of Scheme A:

[0453] The carrier node does not transmit a carrier in the normal state, and after receiving the A1' instruction information (an optional example of the first information), starts transmitting a continuous carrier, transmits the carrier for a time length of t microseconds / milliseconds / seconds, and then stops transmitting the carrier.

[0454] The above-mentioned A1' instruction information can be 1-bit information of mode one in Scheme A, or be carried by a sequence in mode two.

[0455] The transmission mode of the above-mentioned "start transmitting a carrier" includes: continuously transmitting a single-frequency sine wave, or continuously transmitting two single-frequency sine waves, or continuously transmitting N (N>2) single-frequency sine waves.

[0456] The time offset Δt between the reception time point of the information A1' (an optional example of the first time) and the start time of transmitting the carrier is greater than or equal to 0.

[0457] The transmitting end of the above-mentioned A1' instruction information (an optional example of the second device and / or the third device) includes a base station basestation and / or an intermediate node UE.

[0458] The difference between Scheme B and Scheme C is the time length of continuously transmitting a carrier. Scheme B is determined by the device (carrier node) that transmits the carrier. Scheme C is determined according to the indication of the network / intermediate node UE.

[0459] The above-mentioned information A1' is carried by PRDCH at the physical layer.

[0460] Scheme C: The carrier node determines the behavior of starting to transmit a carrier (which can be represented by the second information) according to the received information A2 (an optional example of the third information). The information A2 is a set of information, and after the carrier node receives the set of information A2, determines the detailed behavior of transmitting a carrier according to the information contained in A2. The set of A2 information contains at least one of the following information:

[0461] A2-1 information: Carrier transmission time start point: The carrier node determines the start time point (an optional example of the transmission start time) of transmitting a carrier according to the A2-1 information. The A2-1 information can be one of the following two indication methods:

[0462] Method one: Indicate the relative time: A2-1 indicates an offset, and the offset value is a time offset value based on the time domain resource (such as a time slot) of the A2 information, or the offset value is a time offset value based on the system time reference point T.

[0463] Method two: indicating absolute time: A2-1 indicates an absolute time value, and the carrier node determines the starting time of the carrier transmission according to the local clock combined with the absolute time indicated by A2-1, or the carrier node determines the starting time of the carrier transmission according to the externally obtained clock combined with the absolute time indicated by A2-1.

[0464] A2-2 information: carrier transmission duration (an optional example of transmission duration): after the carrier node starts to transmit the carrier, the sine wave is continuously transmitted in time, and the continuous transmission duration is determined by the value of A2-2, and the value of A2-2 can be x microseconds / milliseconds / seconds.

[0465] A2-3 information: frequency of transmitting the carrier (an optional example of transmission frequency): the frequency characteristic of the carrier transmitted by the carrier node can be a single-frequency sine wave (i.e. a single-frequency non-modulated sine wave), or two or more single-frequency sine waves.

[0466] Single-frequency sine wave: the frequency of the sine wave transmitted by the carrier node is Y Hz (hertz) / kHz (kilohertz) / MHz (megahertz).

[0467] Two single-frequency sine waves: the carrier node transmits two sine waves, and the frequencies of the two sine waves are Y1 Hz / kHz / MHz and Y2 Hz / kHz / MHz respectively, and Y1 and Y2 are not equal.

[0468] Another indication method: the frequency of the sine wave transmitted by the carrier node is Y Hz / kHz / MHz, and a frequency domain offset Δf is indicated, then the frequency of the second sine wave is Y+Δf Hz / kHz / MHz or Y-Δf Hz / kHz / MHz.

[0469] N single-frequency sine waves: the carrier node transmits N sine waves (N>2 positive integer), and the frequencies of the N sine waves are Y1, Y2, Y3, …, YN Hz / kHz / MHz respectively.

[0470] Another indication method: the lowest frequency of the sine wave transmitted by the carrier node is Y Hz / kHz / MHz, and a frequency offset Δf is indicated, then the remaining N-1 frequency points are Y+Δf, Y+2Δf, Y+3Δf, …, Y+(N-1)*Δf Hz / kHz / MHz respectively; or when the highest frequency of the sine wave transmitted by the carrier node is Y Hz / kHz / MHz, the remaining N-1 frequency points are Y-Δf, Y-2Δf, Y-3Δf, …, Y-(N-1)*Δf Hz / kHz / MHz respectively; or when the center frequency of the sine wave transmitted by the carrier node is Y Hz / kHz / MHz, the remaining N-1 frequency points are Y±Δf, …, and so on.

[0471] A2-4 information: Time interval of transmitting carrier: indicates the time interval (e.g. t microseconds / milliseconds / seconds) between two adjacent transmissions of the carrier by the carrier node, during which no carrier is transmitted.

[0472] The transmitter of the above information A2 includes the basestation and / or the intermediate node UE. The above information A2 is carried by PRDCH in the physical layer.

[0473] Scheme D: The carrier node acquires a series of characteristics of transmitting carrier according to the received configuration information set A3 (one optional example of the third information), and when the carrier node subsequently receives the trigger information A3-5 (one optional example of the first information), the carrier node transmits the carrier according to the characteristics specified by the configuration information set A3. (The carrier node determines the carrier characteristics according to the configuration information (one optional example of the third information), and only starts transmitting the carrier after receiving the trigger information (one optional example of the first information))

[0474] Transmitting carrier according to configuration information set + trigger information.

[0475] The carrier node receives the configuration information set A3 and determines the characteristics and behaviors of transmitting carrier according to the information contained in A3. The configuration information set A3 contains at least one of the following information

[0476] A3-1 information: Start point of carrier transmission time: similar to A2-1.

[0477] A3-2 information: Duration of carrier transmission: similar to A2-2.

[0478] A3-3 information: Frequency of transmitting carrier: similar to A2-3.

[0479] A3-4 information: Time interval of transmitting carrier: similar to A2-4.

[0480] After receiving the configuration information set A3, the carrier node does not transmit the carrier, but waits for the trigger information. When the carrier node receives the trigger information A3-5, it transmits the carrier.

[0481] The above configuration information set A3 comes from the configuration of the network or the configuration of the intermediate node UE.

[0482] Base station side: the configuration information can be carried by high layer RRC signaling or MAC CE, and the physical layer carries it by PDSCH or PRDCH channel; the trigger information can be carried by PDCCH (i.e., DCI) or PRDCH.

[0483] UE side: the configuration information can be carried by high layer RRC signaling or MAC CE, and the physical layer carries it by PRDCH channel; the trigger information can be carried by PRDCH.

[0484] The above trigger information A3-5 comes from a base station or an intermediate node UE.

[0485] Scheme E: the carrier node acquires a series of characteristics of the transmitted carrier according to the received information A4 (one optional example of the second information), and transmits the carrier according to the characteristics specified by the information A4.

[0486] Transmit the carrier according to the configuration information set.

[0487] The carrier node receives the configuration information set A4, and determines the characteristics and behaviors of the transmitted carrier according to the information contained in A4. The information set A4 contains at least one of the following information.

[0488] A4-1 information: carrier transmission time start: similar to A2-1.

[0489] A4-2 information: carrier transmission duration: similar to A2-2.

[0490] A4-3 information: frequency of transmitting the carrier: similar to A2-3.

[0491] A4-4 information: time interval of transmitting the carrier: similar to A2-4.

[0492] The above configuration information set A4 comes from the configuration of the network or the configuration of the intermediate node UE. The above information A4 is carried by PRDCH at the physical layer.

[0493] Embodiment 1:

[0494] The reader sends configuration information (one optional example of the third information) and / or trigger information (one optional example of the first information) to the carrier node (CWN):

[0495] As shown in FIG. 6A, which is a schematic diagram of a topology 1 in an embodiment of the present disclosure, in the topology 1, a base station sends configuration information and / or trigger information to the CWN as a reader.

[0496] As shown in FIG. 6B, which is a schematic diagram of a topology 2 in an embodiment of the present disclosure, in the topology 2, an intermediate UE sends configuration information and / or trigger information to the CWN as a reader.

[0497] As shown in FIG. 6C, which is a schematic diagram of a topology 2 in another embodiment of the present disclosure, in the topology 2, a base station sends configuration information and / or trigger information to the CWN.

[0498] As shown in FIG. 6D, which is a schematic diagram of a topology 2 in another embodiment of the present disclosure, in the topology 2, a base station sends configuration information to the CWN, and an intermediate UE sends trigger information to the CWN as a reader.

[0499] FIGS. 6A-6D above show the timing of triggering the carrier to send.

[0500] The CWN starts to send the carrier at a certain determined time according to the specific content in the received configuration information and / or trigger information, and the device modulates the data information to be sent onto the carrier after receiving the carrier sent from outside and performing backscatter, and the intermediate node UE receives the information sent by the device (i.e., the D2R link) as a reader.

[0501] Embodiment 2:

[0502] Corresponding solution A.

[0503] As shown in FIG. 6E, which is an application diagram in an embodiment of the present disclosure, the diagram shows that the carrier node starts / stops sending the carrier according to the indication information. The carrier node receives the indication information (one optional example of the first information), and the content of the indication information is “start”. After receiving the indication information, the carrier node starts to continuously send the carrier after waiting for a time length offset. The carrier node receives another indication information indicating that it stops sending the carrier, and the carrier node immediately stops sending the carrier or stops sending the carrier after waiting for a time length offset-1 after receiving the indication “stop” information.

[0504] The offset and offset-1 can be configured or indicated by the network side / base station or intermediate node UE side to the carrier node, or the offset and offset-1 are determined by the carrier node according to its own implementation. When the offset and offset-1 are 0, the carrier node starts or stops transmitting the carrier immediately after receiving the indication information.

[0505] The transmission of the indication information "start" / "stop" is carried by PDCCH or PRDCH at the physical layer.

[0506] Embodiment 3:

[0507] Corresponding scheme B.

[0508] As shown in FIG. 6F, FIG. 6F is an application diagram in another embodiment of the present disclosure, which shows the start of continuous transmission of the carrier with fixed time length according to the indication information. After receiving the indication information, the carrier node starts transmitting the carrier after waiting for a time length of offset, and then stops transmitting the carrier after a continuous transmission time length of T.

[0509] The continuous time length T of the transmitted carrier can be configured by the network or intermediate node UE, or determined by the carrier node according to the implementation.

[0510] The definition and use method of the above-mentioned offset are the same as those in embodiment 2.

[0511] The transmission of the indication information ( "start" ) is carried by PDCCH or PRDCH at the physical layer.

[0512] Embodiment 4:

[0513] Corresponding scheme C.

[0514] As shown in FIG. 6G, FIG. 6G is an application diagram in another embodiment of the present disclosure, which shows the determination of the characteristics of the carrier transmission according to the trigger information. After receiving the trigger / indication information, the indication information is a set of information, which contains at least one of the following information:

[0515] The specific value of offset.

[0516] The continuous transmission time length T.

[0517] Single frequency sine wave, or 2 single frequency sine waves, or multiple single frequency sine waves.

[0518] The frequency of the carrier transmission.

[0519] According to the above-mentioned information, the carrier node determines the starting time, transmission length, frequency and other transmission characteristics of the transmitted carrier, and starts transmitting the carrier at the transmission time.

[0520] The trigger / indication information is sent by the network / base station or intermediate node UE, and is carried by PRDCH or PDCCH / PDSCH at the physical layer.

[0521] The offset is as in Embodiment 2.

[0522] Embodiment 5:

[0523] Corresponding embodiment D.

[0524] As shown in FIG. 6H, which is a schematic diagram of application in another embodiment of the present disclosure, the characteristics of the carrier transmission are determined according to the configuration information and the trigger information. The carrier node receives the configuration information, which is a set of information containing at least one of the following information:

[0525] The specific value of the offset.

[0526] The continuous transmission duration T.

[0527] A single-frequency sine wave, or two single-frequency sine waves, or multiple single-frequency sine waves.

[0528] The frequency of the carrier transmission.

[0529] The carrier node obtains the transmission length, frequency, and other transmission characteristics of the carrier transmission according to the above information. After receiving the trigger information, the carrier node starts transmitting the carrier after waiting for the offset duration, or immediately starts transmitting the carrier (offset = 0).

[0530] The configuration information and the trigger information are sent by the network / base station or intermediate node UE, and are carried by PRDCH or PDSCH at the physical layer; the trigger information is sent by the base station or intermediate node UE.

[0531] The offset is as in Embodiment 2.

[0532] Embodiment 6:

[0533] Corresponding scheme E.

[0534] As shown in FIG. 6I, which is a schematic diagram of application in another embodiment of the present disclosure, the characteristics of the carrier transmission are determined according to the configuration information. The carrier node receives the configuration information, which is a set of information containing at least one of the following information:

[0535] The specific value of the offset.

[0536] The continuous transmission duration T.

[0537] A single-frequency sine wave, or two single-frequency sine waves, or multiple single-frequency sine waves.

[0538] The frequency of the carrier transmission.

[0539] The carrier node determines the start time, the transmission length, the frequency, and other transmission characteristics of the carrier according to the information, and starts transmitting the carrier at the transmission time.

[0540] The configuration information is transmitted by a network / base station or an intermediate node UE, and is carried by a PRDCH or a PDSCH at a physical layer.

[0541] The offset is the embodiment 2.

[0542] FIG. 7A is a structural schematic diagram of a first device according to an embodiment of the present disclosure. As shown in FIG. 7A, the first device 7100 can include at least one of a transceiver module 7101, a processing module 7102, and the like. The first device 7100 can include:

[0543] The transceiver module 7101 is configured to receive first information, and determine whether to transmit a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0544] In some embodiments of the present disclosure, the first signal includes a carrier CW.

[0545] In some embodiments of the present disclosure, the carrier CW includes at least one single-frequency non-modulated sinusoidal wave.

[0546] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate that the first signal is transmitted, and the second value is used to indicate that the first signal is not transmitted.

[0547] In some embodiments of the present disclosure, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is transmitted, and the second cyclic shift is used to indicate that the first signal is not transmitted.

[0548] In some embodiments of the present disclosure, wherein,

[0549] The processing module 7102 is configured to determine second information.

[0550] The transceiver module 7101 is configured to transmit the first signal according to the second information.

[0551] In some embodiments of the present disclosure, wherein,

[0552] The transceiver module 7101 is configured to receive third information.

[0553] The processing module 7102 is configured to determine the second information according to the third information.

[0554] The transceiver module 7101 is configured to transmit the first signal according to the second information.

[0555] In some embodiments of the present disclosure, the second information comprises at least one of:

[0556] a transmission starting moment;

[0557] a transmission duration;

[0558] a number of single-frequency non-modulated sinusoidal waves;

[0559] a transmission frequency corresponding to each single-frequency non-modulated sinusoidal wave;

[0560] a total transmission power of the first signal.

[0561] In some embodiments of the present disclosure, a time offset of the transmission starting moment relative to a first moment is greater than or equal to 0, the first moment being a moment of receiving the first information.

[0562] In some embodiments of the present disclosure, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0563] In some embodiments of the present disclosure, the third information comprises at least one of:

[0564] a time offset, the time offset being used to determine the transmission starting moment;

[0565] first indication information, the first indication information indicating a reference starting moment;

[0566] second indication information, the second indication information indicating a time interval between two adjacent transmissions of the first signal;

[0567] third indication information, the third indication information indicating a reference duration;

[0568] fourth indication information, the fourth indication information indicating that the first signal is continuously transmitted before the first information is received again, the first information received again being used to trigger stopping the transmission of the first signal;

[0569] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sinusoidal waves;

[0570] sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sinusoidal wave;

[0571] a frequency domain offset, the frequency domain offset being used to determine the transmission frequency of the single-frequency non-modulated sinusoidal wave;

[0572] a total transmission power of the first signal.

[0573] In some embodiments of the present disclosure, the frequency type comprises at least one of:

[0574] maximum frequency;

[0575] minimum frequency;

[0576] center frequency.

[0577] In some embodiments of the disclosure, the processing module 7102 is configured to perform any one of the following:

[0578] taking a time instant with a time offset relative to the reference time instant as the transmission starting time instant;

[0579] taking the reference starting time instant as the transmission starting time instant;

[0580] determining the transmission starting time instant based on the time interval.

[0581] In some embodiments of the disclosure, the reference time instant is determined based on any one of the following:

[0582] time-domain resource determination based on the third information;

[0583] system time determination.

[0584] In some embodiments of the disclosure, the processing module 7102 is configured to perform any one of the following:

[0585] taking the reference duration as the transmission duration;

[0586] taking a duration between the transmission starting time instant and a time instant at which the first information is received again as the transmission duration;

[0587] taking a duration between two adjacent time intervals as the transmission duration.

[0588] In some embodiments of the disclosure, the processing module 7102 is configured to perform:

[0589] taking the reference number of single-frequency non-modulated sinusoidal waves as the transmission number of single-frequency non-modulated sinusoidal waves;

[0590] determining the transmission frequency of the single-frequency non-modulated sinusoidal wave based on the reference frequency and the frequency type and the frequency domain offset of at least one single-frequency non-modulated sinusoidal wave.

[0591] In some embodiments of the disclosure, the transceiver module 7101 is configured to receive third information transmitted by the second device and / or the third device.

[0592] In some embodiments of the disclosure, the transceiver module 7101 is configured to receive the first information transmitted by the second device and / or the third device.

[0593] In some embodiments of the disclosure, the third information is carried based on at least one of the following:

[0594] Physical Downlink Control Channel, PDCCH;

[0595] Physical Downlink Shared Channel, PDSCH;

[0596] Medium Access Control Control Element, MAC CE;

[0597] Radio Resource Control, RRC signaling message.

[0598] In some embodiments of the present disclosure, the first device comprises at least one of:

[0599] intermediate node terminal;

[0600] access network device;

[0601] terminal type carrier node.

[0602] In some embodiments of the present disclosure, the first information is carried based on at least one of:

[0603] PDCCH;

[0604] PDSCH;

[0605] MAC CE;

[0606] RRC signaling message.

[0607] FIG. 7B is a structural schematic diagram of a second device or a third device according to an embodiment of the present disclosure. As shown in FIG. 7B, the second device or the third device 7200 can include at least one of a transceiver module 7201, a processing module 7202, and the like. The second device or the third device 7200 can include:

[0608] The transceiver module 7201 is configured to send first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used to charge and / or carry information and / or backscatter.

[0609] In some embodiments of the present disclosure, the first signal comprises a carrier wave (CW).

[0610] In some embodiments of the present disclosure, the carrier wave (CW) comprises at least one single frequency non-modulated sinusoidal wave.

[0611] In some embodiments of the present disclosure, the first information comprises a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0612] In some embodiments of the present disclosure, the first information comprises a sequence, the sequence having a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate sending the first signal, and the second cyclic shift is used to indicate not sending the first signal.

[0613] In some embodiments of the present disclosure, the transceiver 7201 is configured to send third information, wherein the third information is used by the first device to determine the second information, and the second information is used to send the first signal.

[0614] In some embodiments of the present disclosure, the second information comprises at least one of:

[0615] a sending start time;

[0616] a sending duration;

[0617] a number of single-frequency non-modulated sinusoidal waves;

[0618] a sending frequency corresponding to each single-frequency non-modulated sinusoidal wave.

[0619] a total sending power of the first signal.

[0620] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, and the first time is a time of receiving the first information.

[0621] In some embodiments of the present disclosure, the sending frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0622] In some embodiments of the present disclosure, the third information comprises at least one of:

[0623] a time offset, the time offset being used to determine the sending start time;

[0624] first indication information, the first indication information indicating a reference start time;

[0625] second indication information, the second indication information indicating a time interval between two adjacent times of sending the first signal;

[0626] third indication information, the third indication information indicating a reference duration;

[0627] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping sending the first signal;

[0628] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sinusoidal waves;

[0629] The sixth indication information indicates a reference frequency and a frequency type of the at least one single-frequency non-modulated sinusoidal wave.

[0630] The frequency domain offset is used to determine a transmission frequency of the single-frequency non-modulated sinusoidal wave.

[0631] The total transmission power of the first signal.

[0632] In some embodiments of the present disclosure, the frequency type includes at least one of the following:

[0633] The maximum frequency;

[0634] The minimum frequency;

[0635] The center frequency.

[0636] In some embodiments of the present disclosure, the third information is carried based on at least one of the following:

[0637] The physical downlink control channel (PDCCH);

[0638] The physical downlink shared channel (PDSCH);

[0639] The medium access control control element (MAC CE);

[0640] The radio resource control (RRC) signaling message.

[0641] In some embodiments of the present disclosure, the second device includes an access network device, and the third device includes an intermediate node terminal.

[0642] In some embodiments of the present disclosure, the first information is carried based on at least one of the following:

[0643] The PDCCH;

[0644] The PDSCH;

[0645] The MAC CE;

[0646] The RRC signaling message.

[0647] In some embodiments, the transceiver module can include a transmitting module and / or a receiving module, which can be separate or integrated together. Optionally, the transceiver module can be mutually replaced with a transceiver.

[0648] In some embodiments, the processing module can be one module or include multiple sub-modules. Optionally, the multiple sub-modules perform all or part of the steps required to be performed by the processing module respectively. Optionally, the processing module can be mutually replaced with a processor.

[0649] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is, for example, a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the above units or modules are realized by the design of the logical relationship of elements in the circuit; for example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be implemented in the form of processor calling software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules are implemented in the form of processor calling software, and the remaining part is implemented in the form of hardware circuit.

[0650] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0651] FIG. 8A is a structural schematic diagram of a communication device according to an embodiment of the present disclosure. The communication device 8100 can be a terminal, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments, and specific implementation can be referred to the description in the above method embodiments.

[0652] As shown in FIG. 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control a communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process data of the program. The communication device 8100 is used to implement any of the above methods.

[0653] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 can also be outside the communication device 8100.

[0654] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as transmitting and / or receiving in the above-described methods, and the processor 8101 performs other steps.

[0655] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0656] In some embodiments, the communication device 8100 can include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected with the memory 8102, and the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read the instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0657] The communication device 8100 described in the above embodiments can be a terminal or a network device or a third entity, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 can not be limited by Figure 8A. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, optionally, the set of ICs can also include storage components for storing data, programs; (3) an ASIC, such as a Modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0658] Figure 8B is a structural schematic diagram of a chip according to an embodiment of the present disclosure. For the case where the communication device 8100 can be a chip or a chip system, the structural schematic diagram of the chip 8200 shown in Figure 8B can be referred to, but is not limited thereto.

[0659] The chip 8200 comprises one or more processors 8201, and the chip 8200 is configured to execute any of the above methods.

[0660] In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected with the memory 8203, and the interface circuit 8202 can be configured to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be configured to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0661] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above methods, and the processor 8201 performs other steps.

[0662] In some embodiments, the terms of interface circuit, interface, transceiver pin, transceiver, etc. can be replaced with each other.

[0663] In some embodiments, the chip 8200 further comprises one or more memories 8203 configured to store instructions. Optionally, all or part of the memory 8203 can be outside the chip 8200.

[0664] The disclosure further proposes a storage medium, and the storage medium stores instructions, and the instructions, when executed on the communication device 8100, cause the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0665] The disclosure further proposes a program product, and the program product, when executed by the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the program product is a computer program product.

[0666] The disclosure further proposes a computer program, and the computer program, when executed on a computer, causes the computer to execute any of the above methods.

[0667] In the embodiments described above, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded on a computer and executed, all or part of the processes or functions described in the embodiments of the present disclosure are produced. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disk (solid state disk, SSD)) and the like.

[0668] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Skilled professionals can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0669] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0670] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A signal transmission method characterized by, The method is performed by a first device; the method comprises: receiving first information; determining whether to transmit a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

2. The method of claim 1, wherein, The first signal comprises a carrier wave CW.

3. The method of claim 2, wherein, The carrier wave CW comprises at least one single-frequency non-modulated sinusoidal wave.

4. The method according to any one of claims 1 to 3, characterized in that, The first information comprises a first value or a second value, wherein the first value is used to indicate that the first signal is transmitted, and the second value is used to indicate that the first signal is not transmitted.

5. The method according to any one of claims 1 to 3, wherein The first information comprises a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is transmitted, and the second cyclic shift is used to indicate that the first signal is not transmitted.

6. The method according to any one of claims 1 to 5, wherein, The method further comprises: determining second information; transmitting the first signal according to the second information.

7. The method according to any one of claims 1 to 5, wherein The method further comprises: receiving third information; determining the second information according to the third information; transmitting the first signal according to the second information.

8. The method according to any one of claims 6-7, wherein, The second information comprises at least one of: a transmission start time; a transmission duration; a number of single-frequency non-modulated sinusoidal waves to be transmitted; a transmission frequency corresponding to each single-frequency non-modulated sinusoidal wave; a total transmission power of the first signal.

9. The method of claim 8, wherein, The transmission start time has a time offset greater than or equal to 0 with respect to a first time, and the first time is a time at which the first information is received.

10. The method according to any one of claims 8-9, wherein, The transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

11. The method according to any one of claims 7 to 10, wherein, The third information comprises at least one of: a time offset used to determine the transmission start time; first indication information indicating a reference start time; second indication information indicating a time interval between two adjacent transmissions of the first signal; third indication information indicating a reference duration; fourth indication information indicating that the first signal is continuously transmitted until the first information is received again, and the first information received again is used to trigger the stop of the transmission of the first signal; fifth indication information indicating a reference number of single-frequency non-modulated sinusoidal waves; sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sinusoidal wave; a frequency domain offset used to determine the transmission frequency of the single-frequency non-modulated sinusoidal wave; a total transmission power of the first signal.

12. The method of claim 11, wherein, The frequency type comprises at least one of: a maximum frequency; a minimum frequency; a center frequency.

13. The method of any one of claims 11-12, wherein, Determining the transmission start time according to the third information comprises any one of: taking a time having a time offset with respect to a reference time as the transmission start time; taking the reference start time as the transmission start time; determining the transmission start time based on the time interval.

14. The method of claim 13, wherein, The reference time is determined based on any one of: a time domain resource based on the third information; a system time.

15. The method according to any one of claims 11 to 14, wherein, Determining the transmission duration according to the third information comprises any one of: taking the reference duration as the transmission duration; a duration between a starting time of transmission and a time of re-receiving the first information is taken as the transmission duration; a duration between two adjacent time intervals is taken as the transmission duration.

16. The method of any one of claims 11-15, wherein, determining, according to the third information, a number of transmissions and a transmission frequency of the single-frequency non-modulation sinusoidal wave, comprising: taking a reference number of the single-frequency non-modulation sinusoidal wave as the number of transmissions of the single-frequency non-modulation sinusoidal wave; determining the transmission frequency of the single-frequency non-modulation sinusoidal wave based on a reference frequency and a frequency type of the at least one single-frequency non-modulation sinusoidal wave and the frequency domain offset.

17. The method of any one of claims 7-16, wherein, the third information is received, comprising: receiving the third information transmitted by the second device and / or the third device.

18. The method of any one of claims 1-17, wherein, the first information is received, comprising: receiving the first information transmitted by the second device and / or the third device.

19. The method of any one of claims 7-18, wherein, the third information is carried based on at least one of the following: a physical downlink control channel (PDCCH); a physical downlink shared channel (PDSCH); a medium access control control element (MAC CE); a radio resource control (RRC) signaling message.

20. The method of any one of claims 1-19, wherein, the first device comprises at least one of the following: an intermediate node terminal; an access network device; a terminal type carrier node.

21. The method of any one of claims 1-20, wherein, the first information is carried based on at least one of the following: a PDCCH; a PDSCH; a MAC CE; an RRC signaling message.

22. A signal transmission method characterized by comprising: performed by the second device and / or the third device, and the method comprises: transmitting first information, wherein the first information is used by the first device to determine whether to transmit a first signal, the first signal being used to charge and / or carry information and / or backscatter.

23. The method of claim 22, wherein, the first signal comprises a carrier (CW).

24. The method of claim 23, wherein, the carrier (CW) comprises at least one single-frequency non-modulation sinusoidal wave.

25. The method of any one of claims 22-24, wherein, the first information comprises a first value or a second value, wherein the first value is used to indicate that the first signal is transmitted, and the second value is used to indicate that the first signal is not transmitted.

26. The method of any one of claims 22-24, wherein, the first information comprises a sequence, the sequence having a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is transmitted, and the second cyclic shift is used to indicate that the first signal is not transmitted.

27. The method of any one of claims 22-26, wherein, the method further comprises: transmitting third information, wherein the third information is used by the first device to determine second information, the second information being used to transmit the first signal.

28. The method of claim 27, wherein, the second information comprises at least one of the following: a starting time of transmission; a transmission duration; a number of transmissions of a single-frequency non-modulation sinusoidal wave; a transmission frequency corresponding to each single-frequency non-modulation sinusoidal wave. a total transmission power of the first signal.

29. The method of claim 28, wherein, a time offset of the starting time of transmission relative to a first time is greater than or equal to 0, the first time being a time of receiving the first information.

30. The method of any one of claims 28-29, wherein, the transmission frequencies of different single-frequency non-modulation sinusoidal waves are different.

31. The method of any one of claims 27-30, wherein, the third information comprises at least one of the following: a time offset used to determine a starting time of transmission; first indication information indicating a reference starting time; second indication information indicating a time interval between two adjacent transmissions of the first signal; third indication information indicating a reference duration; a fourth indication information, the fourth indication information indicating to continuously transmit the first signal before receiving the first information again, the first information received again being used to trigger to stop transmitting the first signal; a fifth indication information, the fifth indication information indicating a reference number of the single-frequency non-modulation sinusoidal wave; a sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulation sinusoidal wave; a frequency domain offset, the frequency domain offset being used to determine a transmission frequency of the single-frequency non-modulation sinusoidal wave. a total transmission power of the first signal.

32. The method of claim 31, wherein, The frequency type comprises at least one of: a maximum frequency; a minimum frequency; a center frequency.

33. The method of any one of claims 27-32, wherein, The third information is carried based on at least one of: a physical downlink control channel (PDCCH); a physical downlink shared channel (PDSCH); a medium access control (MAC) control element (CE); a radio resource control (RRC) signaling message.

34. The method of any one of claims 22-33, wherein, The second device comprises an access network device, and the third device comprises an intermediate node terminal.

35. The method of any one of claims 22-34, wherein, The first information is carried based on at least one of: a PDCCH; a PDSCH; a MAC CE; an RRC signaling message.

36. A method of signaling, characterized by The method comprises: the second device and / or the third device transmitting the first information; the first device receiving the first information and determining whether to transmit the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

37. A first device, comprising: The first device comprises: a transceiver module, configured to receive the first information and determine whether to transmit the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

38. A second device or a third device, wherein, The second device or the third device comprises: a transceiver module, configured to transmit the first information, wherein the first information is used for the first device to determine whether to transmit the first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

39. A communications device, characterized by comprise: one or more processors; wherein the processor is configured to execute the signal transmission method in any one of claims 1-36.

40. A storage medium, the storage medium storing instructions, wherein, When the instructions run on the communication device, the communication device is caused to execute the signal transmission method in any one of claims 1-36.

41. A computer program product, characterised in that, comprise a computer program, which, when executed by a processor, implements the communication method in any one of claims 1-36.

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