Signal transmission method, communication device, apparatus, and storage medium

Abstract

Provided in the present disclosure are a signal transmission method, a communication device, an apparatus, and a storage medium. The method comprises: determining first time domain resource information; and on the basis of a time domain resource corresponding to the first time domain resource information, carrying a transmission carrier wave (CW) signal.

Description

Signal transmission method, communication device, apparatus, and storage medium

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411080033.1, filed on August 7, 2024, entitled "Signal Transmission Method, Communication Device, Apparatus, and Storage Medium", which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of wireless communication, and particularly relates to a signal transmission method, a communication device, an apparatus, and a storage medium. BACKGROUND

[0004] Ambient Internet of Things (A-IoT) devices without the ability to generate signals autonomously send a reflected signal based on a received carrier wave (CW) signal to a reading device (e.g., a base station or a relay node), which can be a Device to Reader (D2R) signal.

[0005] As an A-IoT device, not only will the CW signal be received, but a Reader to Device (R2D) signal sent by the reading device will also be received. Research has found that there can be mutual interference between the CW signal and the R2D signal. SUMMARY

[0006] The present disclosure provides a signal transmission method, a communication device, an apparatus, and a storage medium to solve the problem of mutual interference between the CW signal and the R2D signal.

[0007] In a first aspect, the present disclosure provides a signal transmission method, comprising:

[0008] determining first time domain resource information;

[0009] carrying a carrier wave (CW) signal based on a time domain resource corresponding to the first time domain resource information.

[0010] In some embodiments, the time domain resource for carrying the CW signal and the time domain resource for carrying a Reader to Device (R2D) signal satisfy time division multiplexing (TDM).

[0011] In some embodiments, the determination of the first time domain resource information comprises:

[0012] obtaining first signaling; and determining the first time domain resource information according to the first signaling.

[0013] In some embodiments, the first signaling comprises one or more of:

[0014] signaling for indicating second time domain resource information for carrying R2D signal transmission;

[0015] signaling for indicating first time domain resource information for carrying CW signal transmission;

[0016] signaling for indicating CW signal activation and / or deactivation.

[0017] In some embodiments, the second time domain resource information comprises one or more of:

[0018] start time domain position information of one or more R2D signal transmissions;

[0019] end time domain position information of one or more R2D signal transmissions;

[0020] duration information of one or more R2D signal transmissions;

[0021] period information of R2D signal transmission.

[0022] In some embodiments, the first time domain resource information is determined according to the first signaling, comprising:

[0023] determining, according to the second time domain resource information of the R2D signal transmission indicated by the first signaling, time domain resources other than the time domain resources corresponding to the second time domain resource information as the time domain resources corresponding to the first time domain resource information.

[0024] In some embodiments, the first time domain resource information is determined, comprising:

[0025] determining the second time domain resource information for carrying R2D signal transmission;

[0026] determining, according to the second time domain resource information, time domain resources other than the time domain resources corresponding to the second time domain resource information as time domain resources for carrying CW signal, wherein the time domain resource information corresponding to the time domain resources for carrying CW signal is the first time domain resource information.

[0027] In some embodiments, the first time domain resource information comprises one or more of:

[0028] a start time domain position of the time domain resource, wherein the start time domain position is spaced apart from an end time domain position of a first R2D signal transmission by a set time length, and the first R2D signal transmission is before the CW signal transmission;

[0029] an ending time domain position of the time domain resource, wherein the ending time domain position is spaced apart from a starting time domain position of the second R2D signal transmission by a set time length, and the second R2D signal is transmitted after the CW signal;

[0030] The second R2D signal and the first R2D signal are two R2D signals transmitted adjacently.

[0031] In some embodiments, the time domain resource information carrying the CW signal transmission indicated by the first signaling comprises one or more of the following:

[0032] starting time domain position information carrying the CW signal transmission;

[0033] ending time domain position information carrying the CW signal transmission;

[0034] duration information carrying the CW signal transmission;

[0035] period information carrying the CW signal transmission.

[0036] In some embodiments, the starting time domain position information carrying the CW signal transmission comprises one or more of the following:

[0037] an ending time domain position of the R2D signal transmission;

[0038] a time domain position after the R2D signal transmission and spaced apart from an ending time domain position of the R2D signal transmission by a set time length;

[0039] an ending time domain position of the first signaling;

[0040] a time domain position after the first signaling and spaced apart from an ending time domain position of the first signaling by a set time length;

[0041] a starting time domain position of the D2R signal transmission;

[0042] a time domain position before the D2R signal transmission and spaced apart from a starting time domain position of the D2R signal transmission by a set time length.

[0043] In some embodiments, the duration information carrying the CW signal transmission comprises a time length of the R2D signal response window and / or a charging time length.

[0044] In some embodiments, the first time domain resource information is determined according to the first signaling, comprising:

[0045] in a case where the first signaling is a CW signal activation instruction, a time domain position after a time of receiving the first signaling and spaced apart from the time of receiving the first signaling by a set time length is determined as the starting time domain position carrying the CW signal transmission, and time domain resource information corresponding to the starting time domain position carrying the CW signal transmission is the first time domain resource information; or,

[0046] In a case where the first signaling is a CW signal deactivation instruction indication, a time domain position after the reception time of the first signaling and spaced from the reception time of the first signaling by a set time length is determined as an ending time domain position of carrying the CW signal transmission, and time domain resource information corresponding to the ending time domain position of carrying the CW signal transmission is first time domain resource information.

[0047] In some embodiments, the signaling format of the first signaling includes one or more of the following:

[0048] New radio, NR, signaling;

[0049] Dedicated A-IoT signaling.

[0050] In some embodiments, the dedicated A-IoT signaling includes one or more of the following:

[0051] Dedicated preamble;

[0052] Dedicated signaling indication field;

[0053] Device type indication field.

[0054] In a second aspect, the present disclosure also provides a signal transmission method, comprising:

[0055] sending first signaling to the CW sending device, the first signaling being used for the CW sending device to determine first time domain resource information, the time domain resource corresponding to the first time domain resource information being used for carrying the transmission of the CW signal;

[0056] Wherein the time domain resource used for carrying the CW signal and the time domain resource used for carrying the R2D signal satisfy TDM.

[0057] In some embodiments, the first signaling includes one or more of the following:

[0058] Signaling for indicating second time domain resource information for carrying R2D signal transmission;

[0059] Signaling for indicating first time domain resource information for carrying CW signal transmission;

[0060] Signaling for indicating CW signal activation and / or deactivation.

[0061] In some embodiments, the second time domain resource information includes one or more of the following:

[0062] Starting time domain position information of one or more R2D signal transmissions;

[0063] Ending time domain position information of one or more R2D signal transmissions;

[0064] Duration information of one or more R2D signal transmissions;

[0065] Periodic information of the R2D signal transmission.

[0066] In some embodiments, the first time domain resource information comprises one or more of:

[0067] a starting time domain position of the time domain resource, wherein the starting time domain position is spaced apart from an ending time domain position of the first R2D signal transmission by a set time duration, the first R2D signal being transmitted before the CW signal;

[0068] an ending time domain position of the time domain resource, wherein the ending time domain position is spaced apart from a starting time domain position of the second R2D signal transmission by a set time duration, the second R2D signal being transmitted after the CW signal;

[0069] the second R2D signal and the first R2D signal are two R2D signals transmitted adjacently.

[0070] In some embodiments, the first signaling indicates time domain resource information carrying the CW signal transmission comprises one or more of:

[0071] starting time domain position information carrying the CW signal transmission;

[0072] ending time domain position information carrying the CW signal transmission;

[0073] duration information carrying the CW signal transmission;

[0074] periodic information carrying the CW signal transmission.

[0075] In some embodiments, the starting time domain position information carrying the CW signal transmission comprises one or more of:

[0076] an ending time domain position of the R2D signal transmission;

[0077] a time domain position after the R2D signal transmission, spaced apart from an ending time domain position of the R2D signal transmission by a set time duration;

[0078] an ending time domain position of the first signaling;

[0079] a time domain position after the first signaling, spaced apart from an ending time domain position of the first signaling by a set time duration;

[0080] a starting time domain position of the D2R signal transmission;

[0081] a time domain position before the D2R signal transmission, spaced apart from a starting time domain position of the D2R signal transmission by a set time duration.

[0082] In some embodiments, the duration information carrying the CW signal transmission comprises a time duration of the R2D signal response window and / or a charging duration.

[0083] In some embodiments, the signaling format of the first signaling comprises one or more of:

[0084] NR signaling;

[0085] Dedicated A-IoT signaling.

[0086] In a third aspect, the present disclosure also provides a first communication device comprising a memory, a transceiver, and a processor;

[0087] a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0088] determining first time domain resource information;

[0089] carrying a transmission carrier CW signal based on the time domain resource corresponding to the first time domain resource information.

[0090] In some embodiments, the time domain resource for carrying the CW signal satisfies time division multiplexing (TDM) with the time domain resource for carrying the reader-to-device (R2D) signal.

[0091] In some embodiments, determining the first time domain resource information comprises:

[0092] obtaining first signaling; and determining the first time domain resource information according to the first signaling.

[0093] In some embodiments, the first signaling comprises one or more of:

[0094] signaling for indicating second time domain resource information for carrying R2D signal transmission;

[0095] signaling for indicating first time domain resource information for carrying CW signal transmission;

[0096] signaling for indicating activation and / or deactivation of the CW signal.

[0097] In some embodiments, the second time domain resource information comprises one or more of:

[0098] start time domain position information of one or more R2D signal transmissions;

[0099] end time domain position information of one or more R2D signal transmissions;

[0100] duration information of one or more R2D signal transmissions;

[0101] period information of R2D signal transmission.

[0102] In some embodiments, the first time domain resource information is determined according to the first signaling, including:

[0103] According to the second time domain resource information of the R2D signal transmission indicated by the first signaling, time domain resources other than the time domain resources corresponding to the second time domain resource information are determined as the time domain resources corresponding to the first time domain resource information.

[0104] In some embodiments, the first time domain resource information is determined, including:

[0105] The second time domain resource information for carrying the R2D signal transmission is determined;

[0106] According to the second time domain resource information, time domain resources other than the time domain resources corresponding to the second time domain resource information are determined as the time domain resources for carrying the CW signal, and the time domain resource information corresponding to the time domain resources for carrying the CW signal is the first time domain resource information.

[0107] In some embodiments, the first time domain resource information includes one or more of the following:

[0108] The starting time domain position of the time domain resource, wherein the starting time domain position is separated from the ending time domain position of the first R2D signal transmission by a set time length, and the first R2D signal is transmitted before the CW signal;

[0109] The ending time domain position of the time domain resource, wherein the ending time domain position is separated from the starting time domain position of the second R2D signal transmission by a set time length, and the second R2D signal is transmitted after the CW signal;

[0110] The second R2D signal and the first R2D signal are two R2D signals transmitted adjacently.

[0111] In some embodiments, the time domain resource information for carrying the CW signal transmission indicated by the first signaling includes one or more of the following:

[0112] Starting time domain position information for carrying the CW signal transmission;

[0113] Ending time domain position information for carrying the CW signal transmission;

[0114] Duration information for carrying the CW signal transmission;

[0115] Period information for carrying the CW signal transmission.

[0116] In some embodiments, the starting time domain position information for carrying the CW signal transmission includes one or more of the following:

[0117] The ending time domain position of the R2D signal transmission;

[0118] a time domain position after the R2D signal transmission, and spaced from an ending time domain position of the R2D signal transmission by a set time length;

[0119] an ending time domain position of the first signaling;

[0120] a time domain position after the first signaling, and spaced from an ending time domain position of the first signaling by a set time length;

[0121] a starting time domain position of the D2R signal transmission;

[0122] a time domain position before the D2R signal transmission, and spaced from a starting time domain position of the D2R signal transmission by a set time length.

[0123] In some embodiments, the duration information of the CW signal transmission comprises a time length of the R2D signal response window and / or a charging time length.

[0124] In some embodiments, according to the first signaling, the first time domain resource information is determined, comprising:

[0125] In a case where the first signaling is a CW signal activation instruction, a time domain position after a receiving time of the first signaling, and spaced from the receiving time of the first signaling by a set time length is determined as a starting time domain position of the CW signal transmission, and a time domain resource information corresponding to the starting time domain position of the CW signal transmission is the first time domain resource information; or,

[0126] In a case where the first signaling is a CW signal deactivation instruction, a time domain position after a receiving time of the first signaling, and spaced from the receiving time of the first signaling by a set time length is determined as an ending time domain position of the CW signal transmission, and a time domain resource information corresponding to the ending time domain position of the CW signal transmission is the first time domain resource information.

[0127] In some embodiments, a signaling format of the first signaling comprises one or more of the following:

[0128] New Radio, NR, signaling;

[0129] Application-specific, A-IoT, signaling.

[0130] In some embodiments, the A-IoT signaling comprises one or more of the following:

[0131] a dedicated preamble;

[0132] a dedicated signaling indication field;

[0133] a device type indication field.

[0134] In a fourth aspect, the present disclosure also provides a second communication device, comprising a memory, a transceiver, and a processor;

[0135] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0136] sending first signaling to the CW sending device, the first signaling being used for the CW sending device to determine first time domain resource information, the first time domain resource information corresponding to time domain resources used for carrying transmission of the CW signal;

[0137] wherein the time domain resources used for carrying the CW signal and the time domain resources used for carrying the R2D signal satisfy TDM.

[0138] In some embodiments, the first signaling includes one or more of the following:

[0139] signaling used for indicating second time domain resource information used for carrying transmission of the R2D signal;

[0140] signaling used for indicating first time domain resource information used for carrying transmission of the CW signal;

[0141] signaling used for indicating activation and / or deactivation of the CW signal.

[0142] In some embodiments, the second time domain resource information includes one or more of the following:

[0143] start time domain position information of one or more R2D signal transmissions;

[0144] end time domain position information of one or more R2D signal transmissions;

[0145] duration information of one or more R2D signal transmissions;

[0146] period information of the R2D signal transmission.

[0147] In some embodiments, the first time domain resource information includes one or more of the following:

[0148] a start time domain position of the time domain resources, wherein the start time domain position is separated from an end time domain position of a first R2D signal transmission by a set time duration, the first R2D signal being transmitted before the CW signal;

[0149] an end time domain position of the time domain resources, wherein the end time domain position is separated from a start time domain position of a second R2D signal transmission by a set time duration, the second R2D signal being transmitted after the CW signal;

[0150] the second R2D signal and the first R2D signal are two R2D signals that are adjacently transmitted.

[0151] In some embodiments, the first signaling indicates time domain resource information of carrying the CW signal transmission, including one or more of the following:

[0152] start time domain position information of carrying the CW signal transmission;

[0153] end time domain position information of carrying the CW signal transmission;

[0154] duration information of carrying the CW signal transmission;

[0155] period information of carrying the CW signal transmission.

[0156] In some embodiments, the start time domain position information of carrying the CW signal transmission includes one or more of the following:

[0157] end time domain position of the R2D signal transmission;

[0158] time domain position after the R2D signal transmission, and spaced from the end time domain position of the R2D signal transmission by a set duration;

[0159] end time domain position of the first signaling;

[0160] time domain position after the first signaling, and spaced from the end time domain position of the first signaling by a set duration;

[0161] start time domain position of the D2R signal transmission;

[0162] time domain position before the D2R signal transmission, and spaced from the start time domain position of the D2R signal transmission by a set duration.

[0163] In some embodiments, the duration information of carrying the CW signal transmission includes duration of the R2D signal response window and / or charging duration.

[0164] In some embodiments, the signaling format of the first signaling includes one or more of the following:

[0165] NR signaling;

[0166] dedicated A-IoT signaling.

[0167] In a fifth aspect, the present disclosure further provides a signal transmission device, comprising:

[0168] a determination unit configured to determine first time domain resource information;

[0169] a transmission unit configured to carry a transmission carrier CW signal based on a time domain resource corresponding to the first time domain resource information.

[0170] In a sixth aspect, the present disclosure further provides a signal transmission device, comprising:

[0171] The sending unit is configured to send first signaling to the CW sending device, the first signaling being used for the CW sending device to determine first time domain resource information, and time domain resources corresponding to the first time domain resource information being used to carry the CW signal.

[0172] The time domain resources used to carry the CW signal and the time domain resources used to carry the R2D signal satisfy TDM.

[0173] In a seventh aspect, the present disclosure also provides a processor-readable storage medium, which stores a program for causing a processor to execute the signal transmission method of the first aspect or the signal transmission method of the second aspect.

[0174] In an eighth aspect, the present disclosure also provides a communication device, which stores a program for causing the communication device to execute the signal transmission method of the first aspect or the signal transmission method of the second aspect.

[0175] In a ninth aspect, the present disclosure also provides a chip product, which stores a program for causing the chip product to execute the signal transmission method of the first aspect or the signal transmission method of the second aspect.

[0176] The signal transmission method, the communication device, the apparatus and the storage medium provided by the present disclosure can be used for the CW sending device to determine the first time domain resource information, and then to carry the CW signal according to the time domain resources corresponding to the first time domain resource information, so as to effectively avoid the mutual interference between the CW signal and the R2D signal, thereby improving the signal transmission quality and the transmission coverage. BRIEF DESCRIPTION OF DRAWINGS

[0177] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0178] FIG. 1 is a structural schematic diagram of A-IoT topology 1.

[0179] FIG. 2 is a structural schematic diagram of A-IoT topology 2.

[0180] FIG. 3 is a flow schematic diagram of the signal transmission method provided by the embodiments of the present disclosure.

[0181] FIG. 4 is a schematic diagram of the Topo 1 external node sending the CW signal.

[0182] FIG. 5 is a schematic diagram of a Topo 2 external node sending a CW signal according to an embodiment of the present disclosure.

[0183] FIG. 6 is a schematic diagram of a Topo 2 internal node sending a CW signal according to an embodiment of the present disclosure.

[0184] FIG. 7 is a flowchart of a signal transmission method according to an embodiment of the present disclosure.

[0185] FIG. 8 is a schematic diagram of a first communication device or a second communication device according to an embodiment of the present disclosure.

[0186] FIG. 9 is a schematic diagram of a signal transmission apparatus according to an embodiment of the present disclosure.

[0187] FIG. 10 is a schematic diagram of a signal transmission apparatus according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0188] In the embodiments of the present disclosure, the term "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0189] In the embodiments of the present disclosure, the term "multiple" means two or more, and other quantifiers are similar.

[0190] In the embodiments of the present disclosure, the terms "first", "second", and the like are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second" are usually of the same type and do not limit the number of objects, for example, the first object can be one or more.

[0191] The technical solutions in the embodiments of the present disclosure will be described in detail below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0192] In order to more clearly understand the technical solutions of the embodiments of the present disclosure, first introduce some technical contents related to the embodiments of the present disclosure.

[0193] 1. Type of A-IoT device and its power consumption

[0194] According to the power consumption of the A-IoT device and whether it has the ability to independently generate signals, it is divided into the following three categories:

[0195] (1) Device 1: The data transceiver target power consumption of Device 1 is ≤1μW, has energy storage capability, the initial sampling frequency offset is at most 10 X ppm (per million units), has no downlink / uplink amplifier, and has no independent signal generation capability, and transmits signals by backscattering the CW signal provided by the external (for example: carrier CW signal exciter).

[0196] (2) Device 2a: The data transceiver target power consumption of Device 2a is ≤ several hundred μW, has energy storage capability, the initial sampling frequency offset is at most 10 X ppm, has a downlink and / or uplink amplifier, and has no independent signal generation capability, and transmits signals by backscattering the CW signal provided by the external.

[0197] (3) Device 2b: The data transceiver target power consumption of Device 2b is ≤ several hundred μW, has energy storage capability, the initial sampling frequency offset is at most 10 X ppm, has a downlink and / or uplink amplifier, and has independent signal generation capability, and the uplink transmission signal can be generated by the device itself.

[0198] 2、A-IoT topology

[0199] Figure 1 is a schematic diagram of A-IoT topology 1, as shown in Figure 1, the topology structure is that the A-IoT device directly communicates with the reading device (for example: base station). Figure 2 is a schematic diagram of the structure of A-IoT topology 2 provided by the embodiment of the present disclosure, as shown in Figure 2, the topology structure is that the A-IoT device communicates with the reading device (for example: base station) through the relay node, for example, the terminal (or user equipment, User Equipment, UE).

[0200] Among them, the link through which the A-IoT device receives the information sent by the base station / relay node is the downlink R2D link, and the link through which the A-IoT reflects the information to the base station / relay node is the uplink D2R link. In Topo 1, the transmitting device of the D2R signal is the A-IoT device, and the receiving device of the D2R signal is the reading device. In Topo 2, the transmitting device of the D2R signal is the A-IoT device, and the receiving device of the D2R signal is the relay node.

[0201] 3、CW signal transmission

[0202] CW signal can be transmitted by a node within or outside the topology, whether in Topo 1 or Topo 2. The CW transmitting node can be a base station or a relay node, in which case the base station needs to have duplex capability to transmit CW signal while receiving D2R signal reflected by A-IoT device. The CW transmitting node can also be a standalone CW transmitter.

[0203] As an A-IoT device, not only will it receive CW signal and generate D2R signal based on the received CW signal, but also will it receive R2D signal. It has been found through research that there can be mutual interference between CW signal and R2D signal. The signal transmission method provided by the present disclosure can enable CW signal and R2D signal to be transmitted in time division multiplexing (TDM), avoiding mutual interference between the two signals, thereby improving signal transmission quality and transmission coverage.

[0204] FIG. 3 is a flowchart of a signal transmission method provided by an embodiment of the present disclosure, as shown in FIG. 3, the method includes the following steps 301 and 302.

[0205] Step 301, determine first time domain resource information.

[0206] Step 302, based on the time domain resource corresponding to the first time domain resource information, carry a transmission carrier CW signal.

[0207] Specifically, the execution subject of the method is a CW signal excitation device (or CW transmitting device, CW exciter, CW transmitter, etc.), which can be a third-party device independent of reader (reading device or reader, e.g., base station, relay node, terminal, user equipment UE, etc.), A-IoT device, or a device integrated on the reader, or an A-IoT device with CW signal transmission capability.

[0208] Before transmitting the CW signal, the CW signal excitation device determines the first time domain resource information, and based on the time domain resource corresponding to the first time domain resource information, carries the transmission CW signal, effectively avoiding mutual interference between CW signal and R2D signal, and improving signal transmission quality and transmission coverage.

[0209] In some embodiments, the time domain resource for carrying the CW signal and the time domain resource for carrying the R2D signal satisfy TDM.

[0210] In some embodiments, if the CW signal excitation device and the reader are the same device, it means that the CW signal and the R2D signal can be transmitted through different antennas, and then the first time domain resource information is determined, including:

[0211] determining second time domain resource information for carrying R2D signal transmission;

[0212] According to the second time domain resource information, other time domain resources except the time domain resources corresponding to the second time domain resource information are determined as time domain resources for carrying CW signals, and time domain resource information corresponding to the time domain resources for carrying CW signals is the first time domain resource information.

[0213] Specifically, the CW signal exciter needs to determine the second time domain resource information for carrying R2D signal transmission, and in order to effectively avoid signal interference, other time domain resources different from the second time domain resource information are selected to transmit CW signals. For example: according to the second time domain resource information, other time domain resources except the time domain resources corresponding to the second time domain resource information are determined as time domain resources for carrying CW signals.

[0214] Alternatively, the first time domain resource information for carrying CW signals and the second time domain resource information for carrying R2D signal transmission are determined, wherein the time domain resources corresponding to the first time domain resource information and the time domain resources corresponding to the second time domain resource information satisfy TDM. Then, the determined first time domain resource information is transmitted to the antenna carrying the CW signal, and the determined second time domain resource information is transmitted to the antenna carrying the R2D signal, so that different antennas transmit CW signals and R2D signals according to different time domain resources.

[0215] Alternatively, the CW signal exciter can also obtain the first signaling through an interlayer signaling transmission mechanism, and determine the first time domain resource information according to the first signaling. For details of how to determine, please refer to the following description.

[0216] In some embodiments, if the CW signal excitation device and the reader are different devices, the first time domain resource information is determined, including:

[0217] Obtaining the first signaling; determining the first time domain resource information according to the first signaling.

[0218] Specifically, since the CW signal excitation device and the reader are different devices, the reader can send the first signaling for determining the first time domain resource information to the CW signal excitation device, or the CW signal excitation device can also obtain the first signaling from other devices. Here, the acquisition method and the subject of sending the first signaling are not limited.

[0219] For example, in the A-IoT topology 1 structure shown in FIG. 1, the base station can send the first signaling, and in the A-IoT topology 2 structure shown in FIG. 2, the base station or the relay node can send the first signaling.

[0220] FIG. 4 is a schematic diagram of a Topo 1 external node sending a CW signal according to an embodiment of the present disclosure. As shown in FIG. 4, in some embodiments, the receiving device "R" of the D2R signal is a base station, the sending device "D" of the D2R signal is an A-IoT device, the CW sending device is "CW" other than the two devices, and the first signaling is sent by the base station to the CW sending device. In FIG. 4, "CW2D" represents a carrier sent from the "CW" sending device to the "D".

[0221] FIG. 5 is a schematic diagram of a Topo 2 external node sending a CW signal according to an embodiment of the present disclosure. As shown in FIG. 5, in some embodiments, the receiving device "R" of the D2R signal is a relay node, the sending device "D" of the D2R signal is an A-IoT device, the CW sending device is "CW" other than the two devices, and the first signaling can be sent by the base station (i.e., "BS") to the CW sending device or by the relay node to the CW sending device.

[0222] FIG. 6 is a schematic diagram of a Topo 2 internal node sending a CW according to an embodiment of the present disclosure. As shown in FIG. 6, in some embodiments, the CW signal can also be sent by a relay node "R1 / CW" (see (a) in FIG. 6) or "R / CW" (see (b) in FIG. 6). Here, it is also illustrated that the relay node has the ability to send a CW signal. The first signaling can also be sent by the base station (i.e., "BS") to the CW sending device (here, the relay node "R1 / CW" or "R / CW"), or the first signaling can also be transmitted between different processors of the same device through an inter-layer signaling mechanism. In FIG. 6, R2 represents another relay node.

[0223] As can be seen from FIGS. 4-6, the execution subject of FIG. 3 of the present disclosure is a device that needs to send a CW signal.

[0224] In some embodiments, the first signaling includes but is not limited to one or more of the following:

[0225] (1) Signaling for indicating second time domain resource information carrying R2D signal transmission.

[0226] In some embodiments, the R2D signal contains one or more of the following: R2D preamble, R2D control information, R2D data information.

[0227] The first signaling indicates the second time domain resource information carrying the R2D signal transmission, so that the CW sending device can know the time domain resource information of the R2D signal transmission, thereby avoiding sending the CW signal to the A-IoT device at the time of the R2D signal transmission, i.e., TDM transmitting the R2D signal and the CW signal, avoiding mutual interference between the R2D signal and the CW signal, and improving the signal transmission quality and transmission coverage.

[0228] (2) Signaling for indicating the first time-domain resource information of the CW signal transmission.

[0229] For example, the device sending the first signaling directly indicates the first time-domain resource information of the CW signal transmission, such as: indicating the time-domain resource information of the CW signal transmission to the CW sending device according to the time-domain resource information of the R2D signal transmission, or respectively determining the time-domain resource information of the R2D signal transmission and the first time-domain resource information of the CW signal transmission, so that the R2D signal and the CW signal maintain TDM transmission, thereby avoiding mutual interference between the R2D signal and the CW signal, and improving the signal transmission quality and transmission coverage.

[0230] (3) Signaling for indicating the CW signal activation and / or deactivation.

[0231] For example, if the CW sending device determines to activate the CW signal according to the first signaling, the CW sending device immediately starts to send the CW signal or starts to send the CW signal after a time interval. If the CW sending device determines to deactivate the CW signal according to the first signaling, the CW sending device immediately stops sending the CW signal or stops sending the CW signal after a time interval.

[0232] In some embodiments, the second time-domain resource information for indicating the R2D signal transmission comprises one or more of the following:

[0233] (1) Start time-domain position information of one or more R2D signal transmissions.

[0234] In some embodiments, the start time-domain position information can be indicated by a time-domain index, such as at least one of a frame index, a subframe index, a slot index, a mini-slot index, and a symbol index.

[0235] (2) End time-domain position information of one or more R2D signal transmissions.

[0236] In some embodiments, the end time-domain position information can be indicated by a time-domain index, such as at least one of a frame index, a subframe index, a slot index, a mini-slot index, and a symbol index.

[0237] (3) Duration information of one or more R2D signal transmissions.

[0238] In some embodiments, the duration information can be indicated by an absolute time length (such as 2 ms) or a number of time-domain units, which can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol, such as a duration of 3 slots for a certain R2D signal transmission.

[0239] (4) Periodic information of R2D signal transmission.

[0240] In some embodiments, the periodic information can be indicated by an absolute time length or a number of time domain units, which can be any of a frame, a subframe, a slot, a mini-slot, or a symbol.

[0241] In some embodiments, the first time domain resource information is determined according to the first signaling, including:

[0242] According to the second time domain resource information of R2D signal transmission indicated by the first signaling, time domain resources other than the time domain resources corresponding to the second time domain resource information are determined as the time domain resources corresponding to the first time domain resource information.

[0243] For example, the second time domain resource information of R2D signal transmission includes at least one starting time domain position information and ending time domain position information of R2D signal transmission, and the time domain positions set in the time domain resource information are indicated by time domain indexes, which at least include one of a frame index, a subframe index, a slot index, a mini-slot index, and a symbol index. For example, the starting time domain position of the first R2D signal transmission is the third symbol of the first slot in the first subframe, and the ending time domain position is the last symbol of the first slot in the first subframe. The starting time domain position of the second R2D signal transmission is the first symbol of the second slot in the fourth subframe, and the ending time domain position is the last symbol of the second slot in the fourth subframe. The CW transmitting device determines the time domain range in which the CW signal can be transmitted according to the ending time domain position of the previous R2D signal transmission and the starting time domain position of the subsequent R2D signal transmission. When the first signaling only indicates the time domain positions of two R2D signals, only the ending time domain position of the first R2D signal transmission and the starting time domain position of the second R2D signal transmission can be indicated.

[0244] For another example, the second time domain resource information of R2D signal transmission includes starting time domain position information and duration information of one or more R2D signal transmissions, where the duration of the time domain position information can be an absolute time length, such as 2 ms, or a number of time domain units, which can be any of a frame, a subframe, a slot, a mini-slot, or a symbol, such as 3 slots. The CW transmitting device determines the ending time domain position information of the first R2D signal transmission according to the starting time domain position information and the duration information of the first R2D signal transmission, and obtains the starting time domain position information of the second R2D signal transmission, and then determines the time domain range in which the CW signal can be transmitted between the two R2D signals. When the first signaling indicates the time domain resource information of three or more R2D signals, the time domain range in which the CW signal can be transmitted between the subsequent R2D signals is determined in turn, and then the time domain resources for carrier transmission are determined.

[0245] For example, the second time domain resource information of the R2D signal transmission includes the starting time domain position information of the first R2D signal transmission, the duration information of at least one R2D signal transmission, and the periodicity information of the R2D signal transmission. The CW sending device determines the ending time domain position of the first R2D signal transmission according to the starting position information and the duration information of the first R2D signal transmission, and determines the starting time domain position of the second R2D signal transmission according to the starting time domain position information of the first R2D signal transmission and the transmission periodicity information, and then determines the time domain range in which the CW signal can be transmitted between the two R2D signals. The time domain range in which the CW signal can be transmitted between the subsequent R2D signals is determined by analogy.

[0246] In some embodiments, the first time domain resource information includes one or more of the following: the starting time domain position of the time domain resource, the ending time domain position of the time domain resource.

[0247] In the case of determining the second time domain resource information for carrying the R2D signal transmission, the starting time domain position of the time domain resource is separated from the ending time domain position of the first R2D signal transmission by a set time length, and the first R2D signal is transmitted before the CW signal; and / or, the ending time domain position of the time domain resource is separated from the starting time domain position of the second R2D signal transmission by a set time length, and the second R2D signal is transmitted after the CW signal; the second R2D signal and the first R2D signal are two adjacent R2D signals.

[0248] It should be noted that the first R2D signal and the second R2D signal can be any R2D signal, which is not limited by the present disclosure. In the case of the first R2D signal and the second R2D signal, the second R2D signal and the first R2D signal are two adjacent R2D signals.

[0249] The set time length can be indicated by the first signaling, indicated by other signaling than the first signaling, or predefined by a protocol, which is not limited by the present disclosure.

[0250] The set time length can be a time length greater than or equal to 0. The set time length can be an absolute time length (such as 3ms) or N time domain units (N greater than or equal to 0), which can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol. For example, the set time length is 7 symbols.

[0251] In some embodiments, the first time domain resource information of the CW signal transmission indicated by the first signaling includes one or more of the following:

[0252] (1) Starting time domain position information of the CW signal transmission.

[0253] In some embodiments, the start time domain position information can be indicated by a time domain index, which includes at least one of a frame index, a subframe index, a slot index, a mini-slot index, and a symbol index.

[0254] (2) an end time domain position information of the CW signal transmission.

[0255] In some embodiments, the end time domain position information can be indicated by a time domain index, which includes at least one of a frame index, a subframe index, a slot index, a mini-slot index, and a symbol index.

[0256] (3) a duration information of the CW signal transmission.

[0257] In some embodiments, the duration information can be indicated by an absolute time length or a number of time domain units, which can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol.

[0258] (4) a periodicity information of the CW signal transmission.

[0259] In some embodiments, the periodicity information can be indicated by an absolute time length or a number of time domain units, which can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol.

[0260] In some embodiments, the start time domain position information of the CW signal transmission includes one or more of the following:

[0261] (1) an end time domain position of the R2D signal transmission.

[0262] For example, the first signaling can indicate a time domain index of the end time domain position of the R2D signal transmission, and the CW transmitting device takes a time domain position corresponding to the time domain index as the start time domain position of the CW signal transmission, which can avoid mutual interference between the R2D signal and the CW signal, and improve the signal transmission quality and transmission coverage.

[0263] (2) a time domain position after the R2D signal transmission, and spaced from the end time domain position of the R2D signal transmission by a set time length.

[0264] Specifically, the start time domain position of the CW signal transmission after the R2D signal transmission means that the CW signal is transmitted after the end time domain position of the R2D signal transmission.

[0265] For example, the first signaling can indicate a time domain index of the end time domain position of the R2D signal transmission, and the CW transmitting device takes a time domain position after the time domain position corresponding to the time domain index by a set time length as the start time domain position of the CW signal transmission.

[0266] For example, the first signaling can indicate a time domain index of a time domain position that is a set time length after an ending time domain position of the R2D signal transmission, and the CW sending device takes the time domain position corresponding to the time domain index as a starting time domain position of the CW signal transmission.

[0267] The set time length can be found in the foregoing description, and will not be described here.

[0268] (3) An ending time domain position of the first signaling.

[0269] For example, the first signaling can indicate a time domain index of an ending time domain position of the first signaling, and the CW sending device takes the time domain position corresponding to the time domain index as a starting time domain position of the CW signal transmission. Alternatively, the first signaling can not indicate a time domain index of an ending time domain position of the first signaling, and the CW sending device takes the ending time domain position of the first signaling as a starting time domain position of the CW signal transmission according to a predefined rule.

[0270] (4) A time domain position that is a set time length apart from the ending time domain position of the first signaling after the first signaling.

[0271] Specifically, the starting time domain position of the CW signal transmission is after the first signaling, which means that the CW signal is transmitted after the ending time of the first signaling.

[0272] For example, the first signaling can indicate a time domain index of an ending time domain position of the first signaling, and the CW sending device takes a time domain position that is a set time length after the time domain position corresponding to the time domain index as a starting time domain position of the CW signal transmission. Alternatively, the first signaling can not indicate a time domain index of an ending time domain position of the first signaling, and the CW sending device takes a time domain position that is a set time length after the ending time domain position of the first signaling as a starting time domain position of the CW signal transmission according to a predefined rule.

[0273] The set time length can be found in the foregoing description, and will not be described here.

[0274] (5) A starting time domain position of the D2R signal transmission.

[0275] For example, the first signaling can indicate a time domain index of a starting time domain position of the D2R signal transmission sent by the A-IoT device, and the CW sending device takes the time domain position corresponding to the time domain index as a starting time domain position of the CW signal transmission.

[0276] (6) A time domain position that is a set time length apart from a starting time domain position of the D2R signal transmission before the D2R signal transmission.

[0277] Specifically, the starting time domain position of the CW signal transmission is before the D2R signal transmission, which means that the CW signal is transmitted before the starting time domain position of the D2R signal transmission.

[0278] For example, the first signaling can indicate a time domain index of a time domain position of a start of the D2R signal transmission, and the CW sending device sets a time domain position of a time length before the time domain position corresponding to the time domain index as a start time domain position of the CW signal transmission.

[0279] For another example, the first signaling can indicate a time domain index of a time domain position of a time length before a start time domain position of the D2R signal transmission, and the CW sending device sets a time domain position corresponding to the time domain index as the start time domain position of the CW signal transmission.

[0280] The description of the time length can be referred to the foregoing, and will not be described herein.

[0281] In some embodiments, the duration information of the CW signal transmission includes a time length of the R2D signal response window and / or a charging time length.

[0282] For example, the A-IoT device reflects the D2R signal based on the CW signal sent by the CW sending device to respond to the R2D signal, and the duration of the CW signal transmission can be the same as the time length of the R2D signal response window.

[0283] For another example, the CW signal sent by the CW sending device can be used to charge the A-IoT device, and the duration of the CW signal transmission can be the same as the charging time length of the A-IoT device.

[0284] In some embodiments, according to the first signaling, the first time domain resource information is determined, including:

[0285] In a case where the first signaling is the CW signal activation instruction, a time domain position of a time length after a receiving time of the first signaling and spaced from the receiving time of the first signaling is determined as a start time domain position of the CW signal transmission, and time domain resource information corresponding to the start time domain position of the CW signal transmission is the first time domain resource information; or,

[0286] In a case where the first signaling is the CW signal deactivation instruction, a time domain position of a time length after a receiving time of the first signaling and spaced from the receiving time of the first signaling is determined as an end time domain position of the CW signal transmission, and time domain resource information corresponding to the end time domain position of the CW signal transmission is the first time domain resource information.

[0287] For example, the CW sending device can start to send the CW signal at a time domain position of a time length after receiving the signaling for indicating the CW signal activation (referred to as activation signaling).

[0288] For another example, the CW sending device can stop sending the CW at a time domain position of a time length after receiving the signaling for indicating the CW signal deactivation (referred to as deactivation signaling).

[0289] The description of the time length can be referred to the foregoing, and will not be repeated here.

[0290] In some embodiments, the first signaling can be distinguished as activation signaling or deactivation signaling by a preamble, an indication field specially used for indicating activation signaling or deactivation signaling, a device type indication field, etc.

[0291] In some embodiments, the first signaling itself does not distinguish as activation signaling or deactivation signaling, and the CW sending device can determine whether the received first signaling is activation signaling or deactivation signaling according to whether the CW sending device is currently sending CW signals. For example, if the CW sending device is not currently sending CW signals, it is determined that the received first signaling is activation signaling; if the CW sending device is currently sending CW signals, it is determined that the received first signaling is deactivation signaling.

[0292] In some embodiments, the signaling used for indicating activation and / or deactivation of CW signals contains one or more of the following:

[0293] (1) Activation or deactivation signaling indication field. The indication field is specially used for indicating activation signaling or deactivation signaling.

[0294] For example, an indication field specially used for indicating activation signaling or deactivation signaling is set in the first signaling, when the value of the indication field is 0, it indicates that the first signaling is activation signaling, and when the value of the indication field is 1, it indicates that the first signaling is deactivation signaling; or, when the value of the indication field is 1, it indicates that the first signaling is activation signaling, and when the value of the indication field is 0, it indicates that the first signaling is deactivation signaling, which is not limited in the present disclosure.

[0295] (2) Period information of CW signal transmission. That is, the signaling used for indicating activation and / or deactivation of CW signals can contain period information of CW signal transmission, so that activation signaling or deactivation signaling does not need to be frequently sent, and the CW sending device sends CW signals for a period of time in each CW transmission period after receiving the activation signaling. If it is not desired that the CW sending device continues to periodically send CW signals, deactivation signaling can be sent to instruct the CW sending device to stop sending CW signals.

[0296] (3) Duration information of CW signal transmission. That is, the signaling used for indicating activation and / or deactivation of CW signals can contain duration information of CW signal transmission, so that deactivation signaling does not need to be sent again, and the CW sending device stops sending CW signals after the duration ends.

[0297] In some embodiments, both the period information of CW signal transmission and the duration information of CW signal transmission can be pre-defined by a protocol, so that signaling overhead can be saved.

[0298] In some embodiments, the signaling format of the first signaling comprises one or more of:

[0299] (1) New Radio (NR) signaling.

[0300] In the case that the first signaling comprises NR signaling, the CW transmitting device is a device capable of receiving NR signaling, which can receive and demodulate the NR signaling and transmit the CW signal.

[0301] In some embodiments, the NR signaling comprises one or more of: Downlink Control Information (DCI) signaling, Media Access Control Control Element (MAC CE), Radio Resource Control (RRC) signaling, and Group Common Physical Downlink Control Channel (PDCCH) signaling.

[0302] (2) Dedicated A-IoT signaling.

[0303] The dedicated A-IoT signaling refers to A-IoT signaling dedicated to the CW transmitting device. In the case that the first signaling comprises dedicated A-IoT signaling, the CW transmitting device is a device capable of receiving A-IoT signaling, which can receive and demodulate the A-IoT signaling and transmit the CW signal.

[0304] The dedicated A-IoT signaling refers to A-IoT signaling that only the CW transmitting device or only A-IoT devices transmitting CW signals need to receive. A-IoT devices transmitting D2R signals do not need to receive the dedicated A-IoT signaling.

[0305] In some embodiments, whether an A-IoT signaling is the dedicated A-IoT signaling can be distinguished by a preamble, an indication field specially used to indicate whether the signaling is the dedicated A-IoT signaling, a device type indication field, and the like.

[0306] In some embodiments, the dedicated A-IoT signaling comprises one or more of:

[0307] (1) Dedicated preamble. The dedicated preamble is used to indicate that the signaling in which it is located is A-IoT signaling dedicated to the CW transmitting device.

[0308] For example, the signaling type can be distinguished by preamble pattern. The dedicated preamble pattern can be corresponding to the device type of the CW transmitting device (the CW transmitting device can be marked as a certain specific device type), or the dedicated preamble pattern can be corresponding to the function of the A-IoT signaling (such as activation signaling or deactivation signaling). After the CW transmitting device identifies the dedicated preamble pattern, it continues to demodulate the control field information in the signaling, and the A-IoT device transmitting the D2R signal identifies the dedicated preamble pattern and does not demodulate the subsequent control field information in the signaling.

[0309] In some examples, three different preamble patterns can be defined, preamble pattern 1 indicates that the current A-IoT signaling is the R2D signal received by the A-IoT device transmitting the D2R signal, preamble pattern 2 indicates that the current A-IoT signaling is the activation signaling received by the CW transmitting device, and preamble pattern 3 indicates that the current A-IoT signaling is the deactivation signaling received by the CW transmitting device.

[0310] (2) Dedicated signaling indication field. The dedicated signaling indication field is used to indicate whether the signaling is the A-IoT signaling dedicated to the CW transmitting device.

[0311] For example, whether the current A-IoT signaling is the A-IoT signaling dedicated to the CW transmitting device can be indicated by a 1-bit dedicated signaling indication field, when the value of the dedicated signaling indication field is 0, it indicates that the current A-IoT signaling is the first signaling (i.e. the dedicated A-IoT signaling) that the CW transmitting device needs to receive, and when the value of the dedicated signaling indication field is 1, it indicates that the current A-IoT signaling is the R2D signal that the A-IoT device transmitting the D2R signal needs to receive. Or, when the value of the dedicated signaling indication field is 1, it indicates that the current A-IoT signaling is the first signaling (i.e. the dedicated A-IoT signaling) that the CW transmitting device needs to receive, and when the value of the dedicated signaling indication field is 0, it indicates that the current A-IoT signaling is the R2D signal that the A-IoT device transmitting the D2R signal needs to receive.

[0312] (3) Device type indication field. The device type indication field is used to indicate the device type corresponding to the signaling, if the device type indicated by the device type indication field is the device type of the CW transmitting device (such as the device type is "CW transmitting device", or the CW transmitting device is marked as a certain specific device type), then the signaling is the A-IoT signaling dedicated to the CW transmitting device.

[0313] For example, when the device type indication field of the A-IoT signaling indicates the device type corresponding to the CW sending device, the current A-IoT signaling is the first signaling (i.e., the exclusive A-IoT signaling) that the CW sending device needs to receive. When the device type indication field of the A-IoT signaling indicates other device types, the current A-IoT signaling is the R2D signal that the A-IoT device sending the D2R signal needs to receive.

[0314] FIG. 7 is a flowchart of a signal transmission method provided by an embodiment of the present disclosure. As shown in FIG. 7, the method includes the following step 701. The execution subject of the method can be a base station; or other devices.

[0315] Step 701, sending a first signaling to a CW sending device, the first signaling being used for the CW sending device to determine first time domain resource information, the first time domain resource information corresponding to time domain resources used for carrying a CW signal transmission;

[0316] Wherein, the time domain resources used for carrying the CW signal transmission and the time domain resources used for carrying the R2D signal transmission satisfy TDM.

[0317] In some embodiments, the first signaling includes one or more of the following:

[0318] signaling used for indicating the second time domain resource information used for carrying the R2D signal transmission;

[0319] signaling used for indicating the first time domain resource information used for carrying the CW signal transmission;

[0320] signaling used for indicating the activation and / or deactivation of the CW signal.

[0321] In some embodiments, the second time domain resource information includes one or more of the following:

[0322] start time domain position information of one or more R2D signal transmissions;

[0323] end time domain position information of one or more R2D signal transmissions;

[0324] duration information of one or more R2D signal transmissions;

[0325] period information of the R2D signal transmission.

[0326] In some embodiments, the first time domain resource information includes one or more of the following:

[0327] a start time domain position of the time domain resources, wherein the start time domain position is separated from an end time domain position of a first R2D signal transmission by a set time length, and the first R2D signal is transmitted before the CW signal;

[0328] an ending time domain position of the time domain resource, wherein the ending time domain position is spaced apart from a starting time domain position of the second R2D signal transmission by a set time length, and the second R2D signal is transmitted after the CW signal;

[0329] The second R2D signal and the first R2D signal are two R2D signals transmitted adjacently.

[0330] In some embodiments, the time domain resource information of the first signaling indicating carrying the CW signal transmission comprises one or more of the following:

[0331] starting time domain position information of carrying the CW signal transmission;

[0332] ending time domain position information of carrying the CW signal transmission;

[0333] duration information of carrying the CW signal transmission;

[0334] period information of carrying the CW signal transmission.

[0335] In some embodiments, the starting time domain position information of carrying the CW signal transmission comprises one or more of the following:

[0336] an ending time domain position of the R2D signal transmission;

[0337] a time domain position after the R2D signal transmission and spaced apart from an ending time domain position of the R2D signal transmission by a set time length;

[0338] an ending time domain position of the first signaling;

[0339] a time domain position after the first signaling and spaced apart from an ending time domain position of the first signaling by a set time length;

[0340] a starting time domain position of the D2R signal transmission;

[0341] a time domain position before the D2R signal transmission and spaced apart from a starting time domain position of the D2R signal transmission by a set time length.

[0342] In some embodiments, the duration information of carrying the CW signal transmission comprises a time length of the R2D signal response window and / or a charging time length.

[0343] In some embodiments, the signaling format of the first signaling comprises one or more of the following:

[0344] NR signaling;

[0345] dedicated A-IoT signaling.

[0346] The methods provided by the embodiments of the present disclosure are based on the same technical concept, and therefore the implementation of each method can be referred to each other, and the repeated parts will not be described here.

[0347] The method provided by each embodiment of the present disclosure is illustrated below through specific examples.

[0348] Example 1: Type of first signaling.

[0349] When the first signaling is NR signaling, the CW sending device can be regarded as a low-capability UE, which can receive and demodulate the NR signaling and send the CW signal. At this time, the first signaling is only received by the CW sending device, and the A-IoT devices in the Topo (i.e., the A-IoT devices sending the D2R signal) do not need to know the specific time of CW signal sending, and only need to reflect or store energy according to the current demand when receiving the CW signal. Taking the base station sending the first signaling as an example, before the base station sends the first signaling, the CW sending device needs to perform random access so that the base station can identify the CW sending device. Even in Topo 2, there is a UE acting as a relay node, the base station can only send the first signaling to one or more CW sending devices, and the relay node will not receive the first signaling. In this example, the NR signaling as the first signaling can be one or more of DCI signaling, MAC CE, RRC signaling, and group common PDCCH signaling, and the specific use mode is expanded in subsequent examples.

[0350] When the first signaling is A-IoT signaling, the CW sending device can be regarded as an A-IoT device capable of receiving A-IoT signals, but the CW sending device only receives and demodulates the first signaling and sends the CW signal, and does not reflect the D2R signal based on the CW signal like the A-IoT devices in the Topo. The A-IoT devices in the Topo do not need to receive the first signaling, and the first signaling can be made exclusive A-IoT signaling for the CW sending device through the following ways.

[0351] Method 1: distinguished by exclusive preamble pattern. The exclusive preamble pattern can correspond to the device type of the CW sending device, and the CW sending device can be marked as a certain specific device type. Or the exclusive preamble pattern corresponds to the function of the A-IoT signaling, for example, the A-IoT signaling as an activation signaling or deactivation signaling. After the CW sending device identifies the exclusive preamble pattern, it continues to demodulate the control domain information, and the A-IoT devices in the Topo identify the exclusive preamble and do not demodulate the subsequent control domain information.

[0352] Manner 2: Differentiated by device type indication field. The preamble of the first signaling and the R2D signal (or signaling) received by the intra-topology A-IoT device is the same. The CW transmitting device needs to access and establish a connection with the base station or relay node for communication as an A-IoT device that can receive A-IoT signaling. When the device type indication field in the A-IoT signaling control field indicates the device type corresponding to the CW transmitting device, the current A-IoT signaling is the first signaling that the CW transmitting device needs to receive. When the device type indication field in the A-IoT signaling control field indicates other device types, the current A-IoT signaling is the R2D signaling that the intra-topology A-IoT device needs to receive.

[0353] Manner 3: Differentiated by dedicated signaling indication field. The preamble of the first signaling and the R2D signaling received by the intra-topology A-IoT device is the same. There is a 1-bit dedicated signaling indication field in the control field information, which is used to indicate whether the current A-IoT signaling is the first signaling. For example, when the value of the indication field is 1, it indicates that the current A-IoT signaling is the first signaling that the CW transmitting device needs to receive, and when the value of the indication field is 1, it indicates that the current A-IoT signaling is the R2D signaling that the intra-topology A-IoT device needs to receive, and vice versa.

[0354] Example 2: The first signaling is used to indicate the second time domain resource information carrying the R2D signal transmission.

[0355] The intra-topology A-IoT device needs to receive the R2D signal to determine the transmission information and transmission resources of the subsequent response. The R2D signal received by the intra-topology A-IoT device includes at least one of the R2D preamble, the R2D control signal, and the R2D data information. The first signaling contains the time domain resource information of the R2D signal transmission. Specifically, the time domain resource information can contain the following information:

[0356] Combination 1: The first signaling indicates the start and end time-domain positions of at least one R2D signal transmission. All time-domain positions involved in the time-domain resource information in this example can be indicated by time-domain indexes, which include at least one of frame index, subframe index, slot index, mini-slot index, and symbol index. For example, the start time-domain position of the first R2D signal transmission is the third symbol of the first slot in the first subframe, and the end time-domain position is the last symbol of the first slot in the first subframe. The start time-domain position of the second R2D signal transmission is the first symbol of the second slot in the fourth subframe, and the end time-domain position is the last symbol of the second slot in the fourth subframe. The CW transmitting device determines the time-domain range in which the CW signal can be transmitted according to the end time-domain position of the previous R2D signal transmission and the start time-domain position of the next R2D signal transmission. When the first signaling indicates the time-domain positions of only two R2D signals, it can also indicate only the end time-domain position of the first R2D signal transmission and the start time-domain position of the second R2D signal transmission.

[0357] Combination 2: The first signaling indicates the start time-domain position and duration of at least one R2D signal transmission. The duration involved in the time-domain resource information in this example can be an absolute time length (such as 2 ms) or a number of time-domain units, which can be any one of frame, subframe, slot, mini-slot, or symbol, for example, 3 slots. The CW transmitting device determines the end time-domain position of the first R2D signal transmission according to the start time-domain position and duration of the first R2D signal transmission, and obtains the start time-domain position of the second R2D signal transmission, and then determines the time-domain range in which the CW signal can be transmitted between the two R2D signals. When the first signaling indicates the time-domain resource information of three or more R2D signals, the time-domain range in which the CW signal can be transmitted between the subsequent R2D signals is determined in the same way.

[0358] Combination 3: The first signaling indicates the start time-domain position of the first R2D signal transmission, the duration of at least one R2D signal transmission, and the period of R2D signal transmission. The period of all R2D signal transmissions in this example can be an absolute time length or a number of time-domain units, which can be any one of frame, subframe, slot, mini-slot, or symbol. The CW transmitting device determines the end time-domain position of the first R2D signal transmission according to the start position and duration of the first R2D signal transmission, and determines the start time-domain position of the second R2D signal transmission according to the start time-domain position of the first R2D signal transmission and the period of R2D signal transmission, and then determines the time-domain range in which the CW signal can be transmitted between the two R2D signals. The time-domain range in which the CW signal can be transmitted between the subsequent R2D signals is determined in the same way.

[0359] After determining the time domain range in which the CW signal can be transmitted according to the time domain resource information, the CW transmitting device can autonomously decide to transmit the CW signal in any time period within the time domain range, or the CW device can start transmitting the CW signal at T1 after the end time domain position of the previous R2D signal transmission according to a predefined rule, and stop transmitting the CW signal before the start position of the next R2D signal transmission. The time interval (or time length, set time length) T1 (i = 1, 2, 3, 4, 5, 6) in all embodiments of the present disclosure can be an absolute time length greater than or equal to 0, for example, 3 ms; or T1 can also be N time domain units (N greater than or equal to 0), and the time domain unit can be any one of a frame, a subframe, a slot, a mini slot, or a symbol, for example, 7 symbols. Each T1 can select any one of the two definition methods, and different T1 can select different definition methods. T1 can be indicated by the first signaling or predefined by the protocol, which is not limited by the present disclosure.

[0360] The present example informs the CW transmitting device of the time domain resource information of the R2D signal through the first signaling, so that the CW transmitting device transmits the CW signal to the A-IoT device avoiding the transmission time of the R2D signal, that is, TDM transmits the R2D signal and the CW signal, thereby avoiding the mutual interference between the R2D signal and the CW signal, and improving the signal transmission quality and transmission coverage.

[0361] Example 3: The first signaling is used to indicate the time domain resource information carrying the CW signal transmission.

[0362] In the present example, the first signaling indicates the time domain resource information carrying the CW signal transmission, including one or more of the start time domain position, the time duration, the end time domain position, and the transmission period. The CW transmitting device transmits the CW signal according to the indicated time domain resource information.

[0363] The start time domain position of the CW signal transmission can use any one of the following indication methods:

[0364] In the first mode, the starting time-domain position of the CW signal transmission is the ending time-domain position of the R2D signal transmission, or the time-domain position corresponding to a time interval T3 after the ending time-domain position of the R2D signal transmission. When the time interval T3 is equal to 0, the starting position of the CW signal transmission is the ending time-domain position of the R2D signal transmission, which is a special case of the starting position of the CW signal transmission being the time-domain position corresponding to a time interval T3 after the ending time-domain position of the R2D signal. In this example, the first signaling can directly indicate the time-domain index corresponding to a time interval T3 after the ending time-domain position of the R2D signal transmission, or the first signaling indicates the time-domain index of the ending time-domain position of the R2D signal transmission, and T3 is additionally indicated by the first signaling or predefined by the protocol, and the CW transmitting device determines the starting time-domain position of the CW signal transmission according to the time-domain index of the ending time-domain position of the R2D signal transmission and the time interval T3. In addition, the first mode does not limit the order between sending the first signaling and sending the R2D signal.

[0365] In the second mode, the starting time-domain position of the CW signal transmission is the ending time-domain position of the first signaling or the time-domain position corresponding to a time interval T4 after the ending time-domain position of the first signaling. In the second mode, the first signaling can or can not indicate the time-domain index of the ending time-domain position of the first signaling. Without indicating the time-domain index of the ending time-domain position, the CW transmitting device can be specified by a predefined mode to start transmitting the CW signal after the first signaling transmission ends or ends after a time T4. The time interval T4 can be indicated by the first signaling or predefined by the protocol. As in the first mode, when the time interval T4 is equal to 0, the starting time-domain position of the CW signal transmission is the ending time-domain position of the first signaling, which is a special case of the starting time-domain position of the CW signal transmission being the time-domain position corresponding to a time interval T4 after the ending time-domain position of the first signaling. In the second mode, the R2D signal needs to be sent first, and then the first signaling is sent.

[0366] The starting time-domain position of the CW signal transmission is the starting time-domain position of the D2R signal, or the time-domain position corresponding to a T5 time interval before the starting time-domain position of the D2R signal. The D2R signal is transmitted by the A-IoT device in the Topo. After receiving the R2D signal, the A-IoT device in the Topo needs to feed back the D2R signal in response to the R2D signal. The D2R signal includes at least one of a D2R preamble, a D2R control signal, and D2R data information. When the time interval T5 is equal to 0, the starting time-domain position of the CW signal transmission is the starting time-domain position of the D2R signal transmission, which is also a special case of the starting time-domain position of the CW signal transmission being the time-domain position corresponding to a T5 time interval before the starting time-domain position of the D2R signal transmission. In this example, the first signaling can directly indicate the time-domain index corresponding to a T5 time interval before the starting time-domain position of the D2R signal transmission, or the first signaling indicates the time-domain index of the starting time-domain position of the D2R signal transmission, and T5 is additionally indicated by the first signaling or predefined by the protocol, and the CW transmitting device determines the starting time-domain position of the CW signal transmission according to the time-domain index of the starting time-domain position of the D2R signal transmission and the time interval T5. In addition, the order between sending the first signaling and sending the R2D signal is not limited in mode 3.

[0367] In mode 4, the first signaling flexibly indicates the starting time-domain position of the CW signal transmission, without reference to the time-domain position of any other signal. The order between sending the first signaling and sending the R2D signal is not limited in mode 4.

[0368] In addition to the starting time-domain position of the CW signal transmission, the first signaling can also indicate the duration or ending time-domain position of the CW signal transmission. The duration of the CW signal transmission can be an absolute time length or a number of time-domain units, and the time-domain unit can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol. The A-IoT device in the Topo reflects the D2R signal in response to the R2D signal based on the CW signal transmitted by the CW transmitting device. The duration of the CW signal transmission can be the same as the window length of the A-IoT device in the Topo responding to the R2D signal. In addition, the CW signal can also be used to charge the A-IoT device in the Topo, and the duration of the CW signal transmission can be the charging time of the A-IoT device.

[0369] The first signaling notifies the CW sending device of the time domain resource information of the CW signal, including one or more of the starting time domain position, the duration, and the ending time domain position. The device sending the first signaling knows the transmission time of the R2D signal, and avoids the transmission time of the R2D signal when notifying the CW sending device of the time domain resource of the CW signal transmission, thereby avoiding mutual interference between the R2D signal and the CW signal, and improving the signal transmission quality and transmission coverage.

[0370] Example 4: The first signaling is used to indicate CW signal activation and / or deactivation.

[0371] In this example, the DCI, MAC CE, and other NR signaling carried by the PDCCH can be used to activate or deactivate a specific CW sending device. A group common PDCCH can also be used to activate or deactivate a group of CW sending devices. A-IoT signaling can also be used to activate or deactivate at least one CW sending device.

[0372] When the first signaling is A-IoT signaling, as in mode 1 of example 1, a specific preamble can be used to distinguish the use of the signaling A-IoT signaling, for example, preamble pattern 1 indicates that the current A-IoT signaling is received by the A-IoT device within the Topo to receive the R2D signal, preamble pattern 2 indicates that the current A-IoT signaling is received by the CW sending device as activation signaling, and preamble pattern 3 indicates that the current A-IoT signaling is received by the CW sending device as deactivation signaling.

[0373] When the CW sending device-specific A-IoT signaling is determined by mode 2 and mode 3 of example 1, the type of the current A-IoT signaling can be determined by a 1-bit activation / deactivation signaling indication field, for example, when the indication field value is 0, it indicates the activation indication field, and when the indication field value is 1, it indicates the deactivation indication field, and vice versa.

[0374] Alternatively, the type of the current A-IoT signaling can also be determined by whether there is additional indication information after the device type indication field (see example 1, mode 2) or the exclusive signaling indication field (see example 1, mode 3) in the A-IoT signaling. If there is, the current A-IoT signaling is activation signaling, and the CW sending device determines the time domain resource of the CW signal transmission according to the subsequent indication information. If there is no additional indication information, the current A-IoT signaling is deactivation signaling, and the CW sending device stops sending the CW signal after receiving the deactivation signaling.

[0375] Alternatively, the CW transmitting device only needs to determine that the exclusive A-IoT signaling is received according to any one of the manners in Example 1, and the exclusive A-IoT signaling does not need to distinguish whether it is activation signaling or deactivation signaling, and the CW transmitting device determines whether to start or stop transmitting the CW signal according to whether the CW transmitting device is transmitting the CW signal. If the CW transmitting device is not currently transmitting the CW signal, the CW transmitting device starts transmitting the CW signal after receiving the exclusive A-IoT signaling. If the CW transmitting device is currently transmitting the CW signal, the CW transmitting device stops transmitting the CW signal after receiving the exclusive A-IoT signaling.

[0376] Further, the CW transmitting device can start transmitting the CW signal at T5 after receiving the activation signaling, and stop transmitting the CW signal at T6 after receiving the deactivation signaling. T5 and T6 can be an absolute time length greater than or equal to 0 or N time domain units, and the time domain unit can be any one of a frame, a subframe, a slot, a mini-slot, or a symbol.

[0377] The first signaling can carry the period information of the CW signal transmission and / or the duration information of the CW signal transmission in addition to being used as the activation or deactivation indication. The period of the CW signal transmission is greater than the duration of the CW signal transmission. The indication manners of the period and the duration of the CW signal transmission can be referred to Example 1 and Example 2, and the present example will not be described in detail. When the first signaling carries the indication information, the activation or deactivation signaling does not need to be frequently sent. The CW transmitting device transmits the CW signal for a period of time in each CW transmission period after receiving the activation signaling. If it is not desired that the CW transmitting device continues to periodically transmit the CW signal, the second communication device can send the deactivation signaling to terminate the CW signal transmission.

[0378] Alternatively, the period of the CW signal transmission and / or the duration of the CW signal transmission are predefined by the protocol. At this time, the activation or deactivation signaling does not need to be frequently sent. The CW transmitting device transmits the CW signal for a period of time in each CW transmission period after receiving the activation signaling. If it is not desired that the CW transmitting device continues to periodically transmit the CW signal, the deactivation signaling can be sent to terminate the CW signal transmission.

[0379] In the present example, the first signaling can be used to control the flexible transmission or periodic transmission of the CW signal, and the device sending the first signaling can send the R2D signal required by the A-IoT device in the Topo to be received by the A-IoT device at a time other than when the CW transmitting device transmits the CW signal, thereby avoiding the mutual interference between the R2D signal and the CW signal and improving the signal transmission quality and transmission coverage.

[0380] FIG. 8 is a structural schematic diagram of a first communication device or a second communication device provided by an embodiment of the present disclosure. As shown in FIG. 8, the first communication device or the second communication device includes a memory 820, a transceiver 810, and a processor 800. The processor 800 and the memory 820 can also be arranged physically separately.

[0381] a memory 820 for storing a computer program; and a transceiver 810 for transceiving data under control of the processor 800.

[0382] In FIG. 8, the bus architecture can include any number of interconnecting buses and bridges, and the various circuitry representative of the processor 800 and the memory 820 that can be linked through a bus architecture can be further linked by any means of communication, including wireless channels, wired channels, optical media, and the like. The bus interface provides an interface to the transceiver 810. The transceiver 810 can be a plurality of elements including a transmitter and a receiver, and provides a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical media, and the like.

[0383] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.

[0384] The processor 800 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0385] The processor 800 can be configured to execute any of the methods provided by the embodiments of the present disclosure by invoking the computer program stored in the memory 820.

[0386] It should be noted that the first communication device and the second communication device provided by the embodiments of the present disclosure can implement all the method steps of the above method embodiments and achieve the same technical effects, and the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0387] The signal transmission apparatus provided by the embodiments of the present disclosure will be described below, and the signal transmission apparatus described below can be referred to in correspondence with the signal transmission method described above.

[0388] FIG. 9 is a structural schematic diagram of a signal transmission apparatus provided by an embodiment of the present disclosure, as shown in FIG. 9, the apparatus includes a determination unit 910 and a transmission unit 920.

[0389] The determination unit 910 is configured to determine first time domain resource information.

[0390] The transmission unit 920 is configured to carry a transmission carrier CW signal based on a time domain resource corresponding to the first time domain resource information.

[0391] In some embodiments, time domain resources for carrying the CW signal and time domain resources for carrying the reader-to-device R2D signal satisfy time division multiplexing TDM.

[0392] In some embodiments, the determination of the first time domain resource information comprises:

[0393] Obtaining first signaling; and determining the first time domain resource information according to the first signaling.

[0394] In some embodiments, the first signaling comprises one or more of:

[0395] Signaling for indicating second time domain resource information for carrying R2D signal transmission;

[0396] Signaling for indicating first time domain resource information for carrying CW signal transmission;

[0397] Signaling for indicating activation and / or deactivation of the CW signal.

[0398] In some embodiments, the second time domain resource information comprises one or more of:

[0399] Starting time domain position information of one or more R2D signal transmissions;

[0400] Ending time domain position information of one or more R2D signal transmissions;

[0401] Duration information of one or more R2D signal transmissions;

[0402] Period information of the R2D signal transmission.

[0403] In some embodiments, the determination of the first time domain resource information according to the first signaling comprises:

[0404] According to the second time domain resource information of the R2D signal transmission indicated by the first signaling, determining, as time domain resources corresponding to the first time domain resource information, time domain resources other than the time domain resources corresponding to the second time domain resource information.

[0405] In some embodiments, the determination of the first time domain resource information comprises:

[0406] Determining second time domain resource information for carrying R2D signal transmission;

[0407] According to the second time domain resource information, time domain resources other than the time domain resources corresponding to the second time domain resource information are determined as time domain resources for carrying the CW signal, and time domain resource information corresponding to the time domain resources for carrying the CW signal is the first time domain resource information.

[0408] In some embodiments, the first time domain resource information includes one or more of the following:

[0409] a starting time domain position of the time domain resources, wherein the starting time domain position is spaced apart from an ending time domain position of the first R2D signal transmission by a set time length, and the first R2D signal is transmitted before the CW signal;

[0410] an ending time domain position of the time domain resources, wherein the ending time domain position is spaced apart from a starting time domain position of the second R2D signal transmission by a set time length, and the second R2D signal is transmitted after the CW signal;

[0411] The second R2D signal and the first R2D signal are two R2D signals that are adjacently transmitted.

[0412] In some embodiments, the time domain resource information for carrying the CW signal transmission indicated by the first signaling includes one or more of the following:

[0413] starting time domain position information for carrying the CW signal transmission;

[0414] ending time domain position information for carrying the CW signal transmission;

[0415] duration information for carrying the CW signal transmission;

[0416] period information for carrying the CW signal transmission.

[0417] In some embodiments, the starting time domain position information for carrying the CW signal transmission includes one or more of the following:

[0418] an ending time domain position of the R2D signal transmission;

[0419] a time domain position after the R2D signal transmission and spaced apart from an ending time domain position of the R2D signal transmission by a set time length;

[0420] an ending time domain position of the first signaling;

[0421] a time domain position after the first signaling and spaced apart from an ending time domain position of the first signaling by a set time length;

[0422] a starting time domain position of the D2R signal transmission;

[0423] a time domain position before the D2R signal transmission and spaced apart from a starting time domain position of the D2R signal transmission by a set time length.

[0424] In some embodiments, the duration information carried by the CW signal transmission includes a length of the R2D signal response window and / or a charging duration.

[0425] In some embodiments, according to the first signaling, the first time domain resource information is determined, including:

[0426] In a case where the first signaling is a CW signal activation instruction, a time domain position after a time of receiving the first signaling and being spaced apart from the time of receiving the first signaling by a set duration is determined as a starting time domain position of carrying the CW signal transmission, and time domain resource information corresponding to the starting time domain position of carrying the CW signal transmission is the first time domain resource information; or,

[0427] In a case where the first signaling is a CW signal deactivation instruction, a time domain position after a time of receiving the first signaling and being spaced apart from the time of receiving the first signaling by a set duration is determined as an ending time domain position of carrying the CW signal transmission, and time domain resource information corresponding to the ending time domain position of carrying the CW signal transmission is the first time domain resource information.

[0428] In some embodiments, the signaling format of the first signaling includes one or more of the following:

[0429] New radio (NR) signaling;

[0430] Dedicated A-IoT signaling.

[0431] In some embodiments, the dedicated A-IoT signaling includes one or more of the following:

[0432] Dedicated preamble;

[0433] Dedicated signaling indication field;

[0434] Device type indication field.

[0435] FIG. 10 is a structural schematic diagram of a signal transmission device provided by an embodiment of the present disclosure, as shown in FIG. 10, the device includes a sending unit 1010.

[0436] The sending unit 1010 is configured to send first signaling to a CW sending device, the first signaling being used by the CW sending device to determine first time domain resource information, and time domain resources corresponding to the first time domain resource information being used to carry transmission of a CW signal;

[0437] The time domain resources used to carry the CW signal and the time domain resources used to carry the R2D signal satisfy TDM.

[0438] In some embodiments, the first signaling includes one or more of the following:

[0439] Signaling for indicating second time domain resource information carrying R2D signal transmission;

[0440] signaling for indicating first time domain resource information carrying CW signal transmission;

[0441] signaling for indicating CW signal activation and / or deactivation.

[0442] In some embodiments, the second time domain resource information comprises one or more of:

[0443] start time domain position information of the one or more R2D signal transmissions;

[0444] end time domain position information of the one or more R2D signal transmissions;

[0445] duration information of the one or more R2D signal transmissions;

[0446] period information of the R2D signal transmissions.

[0447] In some embodiments, the first time domain resource information comprises one or more of:

[0448] start time domain position of the time domain resource, wherein the start time domain position is spaced apart from an end time domain position of a first R2D signal transmission by a set time duration, the first R2D signal being transmitted before the CW signal;

[0449] end time domain position of the time domain resource, wherein the end time domain position is spaced apart from a start time domain position of a second R2D signal transmission by a set time duration, the second R2D signal being transmitted after the CW signal;

[0450] the second R2D signal and the first R2D signal are two R2D signals of adjacent transmissions.

[0451] In some embodiments, the time domain resource information carrying CW signal transmission indicated by the first signaling comprises one or more of:

[0452] start time domain position information carrying the CW signal transmission;

[0453] end time domain position information carrying the CW signal transmission;

[0454] duration information carrying the CW signal transmission;

[0455] period information carrying the CW signal transmission.

[0456] In some embodiments, the start time domain position information carrying the CW signal transmission comprises one or more of:

[0457] end time domain position of the R2D signal transmission;

[0458] a time domain position after the R2D signal transmission, and spaced from an ending time domain position of the R2D signal transmission by a set time length;

[0459] an ending time domain position of the first signaling;

[0460] a time domain position after the first signaling, and spaced from an ending time domain position of the first signaling by a set time length;

[0461] a starting time domain position of the D2R signal transmission;

[0462] a time domain position before the D2R signal transmission, and spaced from a starting time domain position of the D2R signal transmission by a set time length.

[0463] In some embodiments, the duration information carried by the CW signal transmission includes a time length of the R2D signal response window and / or a charging time length.

[0464] In some embodiments, the signaling format of the first signaling includes one or more of the following:

[0465] NR signaling;

[0466] dedicated A-IoT signaling.

[0467] It should be noted that the above signal transmission apparatus provided by the embodiments of the present disclosure can realize all the method steps achieved by the above method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0468] It should be noted that the division of units in the embodiments of the present disclosure is illustrative, and is only a logical functional division. In actual implementation, another division mode can be used. In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or each unit can exist physically independently, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0469] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such understanding, the technical solutions of the present disclosure, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods in the various embodiments of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, and various other media that can store program codes.

[0470] In another aspect, the embodiments of the present disclosure also provide a processor-readable storage medium, which stores a program for causing a processor to perform the signal transmission method provided by the above-mentioned embodiments.

[0471] It should be noted that the processor-readable storage medium provided by the embodiments of the present disclosure can implement all the method steps realized by the above-mentioned method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the embodiments of the present disclosure as the method embodiments will not be described in detail.

[0472] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to a magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical storage (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor storage (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid-state disk (SSD)), etc.

[0473] The technical solutions provided by the embodiments of the present disclosure can be applied to various systems. For example, the applicable systems can be a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system and an evolved communication system thereof, a 6G (sixth generation mobile communication technology) system, and the like. The various systems can include terminal devices and network devices. The system can also include a core network part, for example, an evolved packet system (EPC), a 5G core network (5GC), and the like.

[0474] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. In addition, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage, etc.) containing computer-usable program code.

[0475] The present disclosure is described with reference to the flowcharts and / or block diagrams according to the embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer executable instructions. These computer executable instructions can be provided to a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce a device that implements the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0476] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart(s) or flowchart block or blocks and / or the function specified in the block diagram block or blocks.

[0477] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart(s) or flowchart block or blocks and / or the functions specified in the block diagram block or blocks.

[0478] Obviously, numerous modifications and variations of the present disclosure are possible in light of the above teachings. It is therefore to be understood that within the scope of the present disclosure, the disclosure can be practiced otherwise than as specifically set out herein. Accordingly, any one of the modifications or variations above can be combined with any other of the modifications or variations above to produce yet further modifications and variations within the scope of the present disclosure.

Claims

1. A signal transmission method, comprising: determining first time domain resource information; carrying a CW signal based on time domain resources corresponding to the first time domain resource information.

2. The signal transmission method according to claim 1, wherein, Time domain resources for carrying the CW signal and time domain resources for carrying a R2D signal satisfy time division multiplexing (TDM).

3. The signal transmission method of claim 1, wherein, The determining of the first time domain resource information comprises: obtaining first signaling; determining the first time domain resource information according to the first signaling.

4. The signal transmission method according to claim 3, wherein, The first signaling comprises one or more of: signaling for indicating second time domain resource information for carrying a R2D signal transmission; signaling for indicating first time domain resource information for carrying a CW signal transmission; signaling for indicating activation and / or deactivation of a CW signal.

5. The signal transmission method of claim 3, wherein, The second time domain resource information comprises one or more of: start time domain position information of one or more R2D signal transmissions; end time domain position information of one or more R2D signal transmissions; duration information of one or more R2D signal transmissions; period information of a R2D signal transmission.

6. The signal transmission method of claim 4, wherein, The determining of the first time domain resource information according to the first signaling comprises: determining, as time domain resources corresponding to the first time domain resource information, time domain resources other than time domain resources corresponding to the second time domain resource information for the R2D signal transmission indicated by the first signaling.

7. The signal transmission method of claim 1, wherein, The determining of the first time domain resource information comprises: determining second time domain resource information for carrying a R2D signal transmission; determining, as time domain resources for carrying a CW signal, time domain resources other than time domain resources corresponding to the second time domain resource information, the time domain resources corresponding to the first time domain resource information being the first time domain resource information.

8. The signal transmission method according to claim 1 or 6 or 7, wherein, The first time domain resource information comprises one or more of: a start time domain position of a time domain resource, wherein the start time domain position is separated from an end time domain position of a first R2D signal transmission by a set time length, the first R2D signal being transmitted before the CW signal; an end time domain position of a time domain resource, wherein the end time domain position is separated from a start time domain position of a second R2D signal transmission by a set time length, the second R2D signal being transmitted after the CW signal; the second R2D signal and the first R2D signal are two adjacently transmitted R2D signals.

9. The signal transmission method of claim 4, wherein, The first time domain resource information for carrying a CW signal transmission indicated by the first signaling comprises one or more of: start time domain position information for carrying a CW signal transmission; end time domain position information for carrying a CW signal transmission; duration information for carrying a CW signal transmission; period information for carrying a CW signal transmission.

10. The signal transmission method of claim 9, wherein, The start time domain position information for carrying a CW signal transmission comprises one or more of: an end time domain position of a R2D signal transmission; a time domain position after a R2D signal transmission, separated from an end time domain position of the R2D signal transmission by a set time length; an end time domain position of the first signaling; a time domain position after the first signaling, separated from an end time domain position of the first signaling by a set time length; A starting time domain position of D2R signaling; A time domain position that is separated from the starting time domain position of the D2R signaling by a set time length before the D2R signaling.

11. The signal transmission method of claim 9, wherein, The duration information of the CW signal transmission includes a time length of an R2D signal response window and / or a charging time length.

12. The signal transmission method of claim 4, wherein, The first signaling includes one or more of the following: New radio (NR) signaling; Application-specific Internet of Things (A-IoT) signaling.

13. The signal transmission method according to claim 3 or 4, wherein, The A-IoT signaling includes one or more of the following: A specific preamble; A specific signaling indication field; 14. The signal transmission method of claim 13, wherein, A device type indication field.

15. A signal transmission method, comprising: sending, to a CW transmitting device, first signaling used to determine first time domain resource information corresponding to time domain resources used to carry a transmission carrier wave (CW) signal; wherein time domain resources used to carry the CW signal and time domain resources used to carry an R2D signal satisfy time domain multiplexing (TDM). The first signaling includes one or more of the following: signaling used to indicate second time domain resource information used to carry R2D signal transmission; signaling used to indicate first time domain resource information used to carry CW signal transmission; 16. The signal transmission method of claim 15, wherein, signaling used to indicate activation and / or deactivation of a CW signal.

17. A first communication device, comprising a memory, a transceiver, and a processor; the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: determining first time domain resource information; carrying a transmission carrier wave (CW) signal based on time domain resources corresponding to the first time domain resource information.

18. A second communication device, comprising a memory, a transceiver, and a processor; the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: sending, to a CW transmitting device, first signaling used by the CW transmitting device to determine first time domain resource information corresponding to time domain resources used to carry a transmission carrier wave (CW) signal; wherein time domain resources used to carry the CW signal and time domain resources used to carry an R2D signal satisfy time domain multiplexing (TDM).

19. A signal transmission apparatus, comprising: ​ ​ ​ A determining unit is configured to determine first time domain resource information. A transmitting unit is configured to carry a transmission carrier (CW) signal based on a time domain resource corresponding to the first time domain resource information.

20. A signal transmission apparatus, comprising: A sending unit is configured to send first signaling to a CW sending device, the first signaling being used for the CW sending device to determine first time domain resource information, a time domain resource corresponding to the first time domain resource information being used to carry a transmission CW signal. The time domain resource used to carry the CW signal and the time domain resource used to carry an R2D signal satisfy TDM.

21. A processor readable storage medium, the processor readable storage medium storing a program, the program being used for causing a processor to perform the method in any one of claims 1 to 14, or the method in any one of claims 15 to 22.

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