Information transmission method and device

Abstract

The invention provides an information transmission method and device, which can determine that first sidewalk authorization is used for transmitting information to a first destination address in at least one destination address, and the first destination address has first information with the highest priority in the at least one destination address, so that the reliability of information transmission can be improved. The method comprises: a first terminal device selecting a first destination address associated with a first sidewalk authorization from at least one destination address, the first destination address having first information having a highest priority in the at least one destination address, one of the at least one destination address having an SL PRS, or one of the at least one destination address having second information having a highest priority in the at least one destination address; one of the at least one destination address has an SL PRS and second information; and the first terminal device transmits the first information and / or the data packet corresponding to the first information to the first destination address on the first sidewalk authorization.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a method and device for information transmission. Background Art

[0002] In order to meet the needs of indoor or vehicle-to-vehicle positioning scenarios, the 3rd Generation Partnership Project (3GPP) R18 introduced positioning based on the sidelink (SL) between terminal devices. In the SL positioning scenario, the sidelink-positioning reference signal (SL PRS) needs to be transmitted between terminal devices, and positioning-related information may also need to be transmitted, such as positioning-related auxiliary data, capability information, SL PRS configuration information, measurement results, location information, and connection control information. Other data information may also need to be transmitted between terminal devices.

[0003] In the SL positioning scenario, since the terminal device needs to transmit the SL PRS, the terminal device can use the sideline grant (SL grant) resources of the SLPRS dedicated resource pool to transmit the SL PRS, and the terminal device can also use the sideline grant resources of the shared resource pool to transmit the SL PRS. Among them, the SL PRS dedicated resource pool is a resource pool specifically used to transmit the SL PRS; the shared resource pool is a resource pool that can be used to transmit data in addition to transmitting the SL PRS.

[0004] For a SL grant in a dedicated resource pool, when it is necessary to transmit SL PRS to multiple destination addresses, how to determine to which of the multiple destination addresses the SL grant is used to transmit the SL PRS needs to be solved urgently. In addition, for a SL grant in a shared resource pool, there is a situation where data and SL PRS are transmitted together. When it is necessary to transmit data and / or SL PRS to multiple destination addresses, how to determine to which of the multiple destination addresses the SL grant is used to transmit data and / or SL PRS, and how to perform media access control (MAC) protocol data unit (PDU) packetization problems need to be solved urgently. Summary of the invention

[0005] The present application provides a method and device for information transmission, which can determine that a first side row is authorized to transmit information to a first destination address among at least one destination address, and the first destination address has the first information with the highest priority among at least one destination address, thereby improving the reliability of information transmission.

[0006] In a first aspect, a method for information transmission is provided, which can be executed by a first terminal device or a chip or chip system in the first terminal device. The method comprises: the first terminal device selects a first destination address associated with a first sideline authorization from at least one destination address, the first destination address has the first information with the highest priority among the at least one destination address, one of the at least one destination address has a sidelink positioning reference signal SLPRS, or one of the at least one destination address has a SL PRS and second information, the second information includes one or more of a media access control element MAC CE and a logical channel; the first terminal device transmits the first information and / or a data packet corresponding to the first information to a second terminal device on the first sideline authorization, and the address of the second terminal device is the first destination address.

[0007] Based on the above technical solution, the first terminal device can determine the first destination address associated with the first sideline authorization from at least one destination address according to the priority of the SL PRS, MAC CE and / or logical channel, and the first destination address has the first information with the highest priority; the first terminal device transmits the first information and / or the data packet corresponding to the first information to the second terminal device corresponding to the first destination address on the first sideline authorization. This technical solution can determine the first destination address associated with the first sideline authorization, and the first destination address has the first information with the highest priority among at least one destination address, and can realize the priority transmission of the first information with the highest priority on the first sideline authorization, thereby improving the reliability of information transmission. .

[0008] In one design of the present application, the method further includes: determining the at least one destination address according to the first side line authorization. It can be understood that the first side line authorization has requirements for the information supported for transmission, and it is necessary to select the first destination address from the destination addresses corresponding to the information that meets the requirements. For example, at least one destination address is determined based on whether the first side line authorization supports the transmission of SL PRS. Alternatively, at least one destination address is determined based on a priority list of SL PRS supported by the first side line authorization. Alternatively, at least one destination address is determined based on the time requirements of the first side line authorization for information transmission.

[0009] In one design of the present application, the method further includes: in a case where the first destination address has the SL PRS and the first information is not the SL PRS, determining whether to transmit the SLPRS on the first sideline authorization. Wherein, the first destination address has the SL PRS, which can be understood as the information that needs to be transmitted to the first destination address includes the SL PRS. In a case where the first destination address has the SL PRS and the first information is not the SL PRS, the priority of the first information is higher than the priority of the SL PRS, and the first information is a MAC CE or a logical channel.

[0010] In one design of the present application, when the first destination address has the SL PRS and the first information is not the SL PRS, determining whether to transmit the SL PRS on the first sideline authorization includes: when the first destination address has the SL PRS and the first information is not the SL PRS, determining to transmit the SL PRS on the first sideline authorization. In this implementation, if the first destination address has a requirement to transmit the SL PRS, the MAC layer of the first terminal device determines to transmit the SL PRS on the first sideline authorization.

[0011] In one design of the present application, when the first destination address has the SL PRS and the first information is not the SL PRS, determining whether to transmit the SL PRS on the first side row authorization includes: when the first destination address has the SL PRS and the first information is not the SL PRS, determining not to transmit the SL PRS on the first side row authorization. Specifically, if the priority of the first information is higher than or equal to the priority of the SL PRS, the MAC layer of the first terminal device determines not to transmit the SL PRS on the first side row authorization; or, if the priority of the SL PRS is higher than or equal to the priority of the first information, the MAC layer of the first terminal device determines to transmit the SL PRS on the first side row authorization. In this implementation, since the priority of the first information is higher than the priority of the SL PRS, the MAC layer of the first terminal device determines not to transmit the SL PRS on the first side row authorization.

[0012] In one design of the present application, when the first destination address has the SL PRS and the first information is not the SL PRS, determining whether to transmit the SL PRS on the first side row authorization includes: when the first destination address has the SL PRS and the first information is not the SL PRS, determining whether to transmit the SL PRS on the first side row authorization based on the size of transmission resources occupied by information in the first destination address with a priority higher than the priority of the SL PRS, the size of transmission resources occupied by the SLPRS, and the size of transmission resources of the first side row authorization.

[0013] In one design of the present application, if the sum of the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS and the size of the transmission resources occupied by the SL PRS is less than or equal to the size of the transmission resources authorized by the first side row, it is determined to transmit the SL PRS on the first side row authorization; or, if the sum of the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS and the size of the transmission resources occupied by the SL PRS is greater than the size of the transmission resources authorized by the first side row, it is determined not to transmit the SL PRS on the first side row authorization. Among them, the information in the first destination address whose priority is higher than the priority of the SL PRS can be understood as information that needs to be transmitted to the first destination address and has a higher priority than the priority of the SL PRS.

[0014] In one design of the present application, transmitting the first information and / or a data packet corresponding to the first information to a second terminal device on the first sideline authorization includes: when the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined to transmit the SL PRS on the first sideline authorization, transmitting the data packet corresponding to the first information and the SL PRS to the second terminal device on the first sideline authorization; or, when the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined not to transmit the SL PRS on the first sideline authorization, transmitting the data packet corresponding to the first information to the second terminal device on the first sideline authorization; or, when the first information is the SL PRS, transmitting the SL PRS and a data packet corresponding to third information to the second terminal device on the first sideline authorization, the third information including part or all of the information in the first destination address except the SL PRS; or, when the first information is the SL PRS, transmitting the SL PRS and a data packet corresponding to the SL PRS to the second terminal device on the first sideline authorization; or, when the first information is the SL PRS In the case of a SL PRS, the SL PRS is transmitted to the second terminal device based on the first sideline grant.

[0015] In one design of the present application, the data packet corresponding to the SL PRS does not include a MAC service data unit SDU and a MAC CE; or, the data packet corresponding to the SL PRS includes a MAC protocol data unit PDU subheader; or, the data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, the data packet corresponding to the SL PRS includes a MAC CE associated with the SLPRS.

[0016] In one design of the present application, the method further includes: obtaining the first side travel authorization.

[0017] In one design of the present application, obtaining the first side row authorization includes: receiving configuration information from a network device, wherein the configuration information indicates the first side row authorization.

[0018] In one design of the present application, the configuration information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of the SL PRS supported for transmission by the first side row authorization; required bandwidth information of the SL PRS supported for transmission by the first side row authorization; periodicity information of the first side row authorization; or information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization.

[0019] In one design of the present application, obtaining the first side row authorization includes: sending fourth information to a network device, the fourth information being used to request obtaining a side row authorization that can be used to transmit SL PRS; and receiving fifth information from the network device, the fifth information being used to indicate the first side row authorization.

[0020] In one design of the present application, the fourth information or the fifth information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of the SL PRS supported for transmission by the first side row authorization; required bandwidth information of the SL PRS supported for transmission by the first side row authorization; time domain symbol number information occupied by the SL PRS supported for transmission by the first side row authorization; index information corresponding to the first side row authorization; index information of the resource pool where the first side row authorization is located; or experience requirement information of the positioning service supported by the first side row authorization.

[0021] In one design of the present application, the method also includes: the first terminal device receives a first uplink authorization; the first terminal device determines whether transmission on the first sidelink authorization takes precedence over transmission on the first uplink authorization based on the priority of the SL PRS in the first destination address.

[0022] In one design of the present application, the method also includes: the first terminal device receives a first SL priority threshold; the first terminal device determines whether transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization based on the priority of the SL PRS in the first destination address, including: if the priority of the SLPRS in the first destination address is higher than or equal to the first SL priority threshold, determining that transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization; or, if the priority of the SL PRS in the first destination address is lower than or equal to the first SL priority threshold, determining that transmission on the first uplink authorization takes precedence over transmission on the first sideline authorization, or determining that transmission on the first sideline authorization does not take precedence over transmission on the first uplink authorization.

[0023] In one design of the present application, the sending time corresponding to the first uplink authorization and the first sidelink authorization is the same or similar.

[0024] In one design of the present application, the first terminal device does not have the ability to use the first uplink grant and the first sidelink grant simultaneously.

[0025] In one design of the present application, the method further includes: before the first terminal device sends the fourth information to the network device, the first terminal device receives the sixth information sent by the network device.

[0026] In one design of the present application, the method also includes: the sixth information includes one or more of the following: an index of the resource pool where the first sideline authorization is located; information on the sideline transmission time and frequency resources of the first sideline authorization; period information of the first sideline authorization; the first sideline authorization is a sideline transmission resource of configured grant type 2; or, the activation status of the first sideline authorization.

[0027] In one design of the present application, the method further includes: when the first authorization is a side transmission resource of configured granttype 2, the fourth information is used by the first terminal device to request activation or deactivation of the first side authorization.

[0028] In one design of the present application, the method further includes: when the first authorization is a side transmission resource of configured granttype 2, the fifth information is used by the network device to activate or deactivate the first side authorization.

[0029] In a second aspect, a method for information transmission is provided, which can be performed by a network device or a chip or chip system in the network device. The method includes: the network device sends configuration information to a first terminal device, wherein the configuration information indicates authorization of the first side.

[0030] In one design of the present application, the configuration information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of the SL PRS supported for transmission by the first side row authorization; required bandwidth information of the SL PRS supported for transmission by the first side row authorization; periodicity information of the first side row authorization; or information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization.

[0031] In a third aspect, a method for information transmission is provided, which can be performed by a network device or a chip or chip system in the network device. The method includes: the network device receives fourth information from a first terminal device, the fourth information is used to request a sideline authorization that can be used to transmit an SL PRS; the network device sends fifth information to the first terminal device, the fifth information is used to indicate the first sideline authorization.

[0032] In one design of the present application, the fourth information or the fifth information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of the SL PRS supported for transmission by the first side row authorization; required bandwidth information of the SL PRS supported for transmission by the first side row authorization; time domain symbol number information occupied by the SL PRS supported for transmission by the first side row authorization; index information corresponding to the first side row authorization; index information of the resource pool where the first side row authorization is located; or experience requirement information of the positioning service supported by the first side row authorization.

[0033] In one design of the present application, the method further includes: before the network device receives the fourth information from the first terminal device, sending sixth information to the first terminal device.

[0034] In one design of the present application, the method also includes: the sixth information includes one or more of the following: an index of the resource pool where the first sideline authorization is located; information on the sideline transmission time and frequency resources of the first sideline authorization; period information of the first sideline authorization; the first sideline authorization is a sideline transmission resource of configured grant type 2; or, the activation status of the first sideline authorization.

[0035] In one design of the present application, the method further includes: when the first authorization is a sideline transmission resource of configured granttype 2, the fourth information is used by the first terminal device to request activation or deactivation of the first sideline authorization.

[0036] In one design of the present application, the method further includes: when the first authorization is a side transmission resource of configured granttype 2, the fifth information is used by the network device to activate or deactivate the first side authorization.

[0037] In a fourth aspect, a rule for not being able to generate a MAC PDU is provided, including: when the following conditions are met, the MAC layer of the first terminal device is not allowed to generate a MAC PDU:

[0038] No sidelink CSI reporting MAC CE is generated for physical sidelink shared channel (PSSCH) transmissions, and

[0039] no Sidelink DRX Command MAC CE is generated for the PSSCH transmission, and

[0040] no sidelink inter-terminal device coordination request MAC CE is generated for the PSSCH transmission, and

[0041] no sidelink inter-terminal device coordination information MAC CE is generated for the PSSCH transmission, and

[0042] no SL PRS associated MAC CE is generated for the PSSCH transmission, and

[0043] The MAC PDU includes a zero MAC SDU;

[0044] If the first terminal device needs to transmit the SL PRS and the MAC CE associated with the SL PRS to the second terminal device, and the MAC layer of the first terminal device is allowed to generate the MAC PDU, the first terminal device transmits the SL PRS and the data packet corresponding to the SL PRS to the second terminal device on the sideline authorization.

[0045] In a fifth aspect, a rule for not being able to generate a MAC PDU is provided, comprising: when the following conditions are met, not allowing the MAC layer of the first terminal device to generate the MAC PDU:

[0046] no sidelink CSI reporting MAC CE is generated for the PSSCH transmission, and

[0047] no Sidelink DRX Command MAC CE is generated for the PSSCH transmission, and

[0048] no sidelink inter-terminal device coordination request MAC CE is generated for the PSSCH transmission, and

[0049] no sidelink inter-terminal device coordination information MAC CE is generated for the PSSCH transmission, and

[0050] The MAC PDU includes a zero MAC SDU, and the MAC PDU is not associated with a SL PRS;

[0051] If the first terminal device needs to transmit the SL PRS to the second terminal device, but does not need to transmit the MAC CE and the logical channel to the second terminal device, and the MAC layer of the first terminal device is allowed to generate the MAC PDU, then the first terminal device transmits the SL PRS and the MAC PDU including the MAC PDU subheader, or the MAC PDU subheader plus padding bits to the second terminal device on the sideline authorization.

[0052] In a sixth aspect, a method for information transmission is provided, which can be performed by a first terminal device or a chip or chip system in the first terminal device. The method includes: the first terminal device obtains a first sideline authorization, and the first sideline authorization is used to transmit an SL PRS to a first destination address; the first terminal device receives a first uplink authorization; the first terminal device determines whether the transmission on the first sideline authorization takes precedence over the transmission on the first uplink authorization based on the priority of the SL PRS in the first destination address.

[0053] Based on the above technical solution, when there are uplink transmission and sidelink SL PRS transmission at the same time, it is possible to determine whether the transmission on the first sidelink authorization takes precedence over the transmission on the first uplink authorization based on the priority of the SL PRS in the first destination address, thereby solving the problem of conflict between uplink transmission and sidelink SL PRS transmission.

[0054] In one design of the present application, the sending time corresponding to the first uplink authorization and the first sidelink authorization is the same or similar.

[0055] In one design of the present application, the method also includes: the first terminal device receives a first SL priority threshold; the first terminal device determines whether transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization based on the priority of the SL PRS in the first destination address, including: if the priority of the SL PRS in the first destination address is higher than or equal to the first SL priority threshold, the first terminal device determines that transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization; or, if the priority of the SL PRS in the first destination address is lower than or equal to the first SL priority threshold, determines that transmission on the first uplink authorization takes precedence over transmission on the first sideline authorization, or determines that transmission on the first sideline authorization does not take precedence over transmission on the first uplink authorization.

[0056] In one design of the present application, the first terminal device does not have the ability to use the first uplink grant and the first sidelink grant simultaneously.

[0057] In the seventh aspect, a communication device is provided, which can be applied to the first terminal device described in the first aspect, and the device includes: a processing unit, used to select a first destination address associated with a first sidelink authorization from at least one destination address, the first destination address has first information with the highest priority among the at least one destination address, one of the at least one destination address has a sidelink positioning reference signal SL PRS, or one of the at least one destination address has SL PRS and second information, the second information includes one or more of a media access control element MAC CE and a logical channel; a transceiver unit, used to transmit the first information and / or a data packet corresponding to the first information to a second terminal device on the first sidelink authorization, and the address of the second terminal device is the first destination address.

[0058] In one design of the present application, the processing unit is further configured to, when the first destination address has the SLPRS and the first information is not the SL PRS, determine whether to transmit the SL PRS on the first sideline grant.

[0059] In one design of the present application, the processing unit is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine to transmit the SL PRS on the first sideline grant.

[0060] In one design of the present application, the processing unit is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine not to transmit the SL PRS on the first sideline grant.

[0061] In one design of the present application, the processing unit is specifically used to determine whether to transmit the SLPRS on the first side line authorization based on the size of transmission resources occupied by information in the first destination address whose priority is higher than that of the SL PRS, the size of transmission resources occupied by the SL PRS, and the size of transmission resources of the first side line authorization when the first destination address has the SL PRS and the first information is not the SL PRS.

[0062] In one design of the present application, the processing unit is specifically used to: if the sum of the size of transmission resources occupied by information in the first destination address whose priority is higher than the priority of the SL PRS and the size of transmission resources occupied by the SL PRS is less than or equal to the size of transmission resources authorized by the first side row, then determine to transmit the SL PRS on the first side row authorization; or, if the sum of the size of transmission resources occupied by information in the first destination address whose priority is higher than the priority of the SL PRS and the size of transmission resources occupied by the SL PRS is greater than the size of transmission resources authorized by the first side row, then determine not to transmit the SL PRS on the first side row authorization.

[0063] In one design of the present application, the transceiver unit is specifically configured to: when the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined to transmit the SL PRS on the first sideline authorization, transmit the data packet corresponding to the first information and the SL PRS to the second terminal device on the first sideline authorization; or, when the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined not to transmit the SL PRS on the first sideline authorization, transmit the data packet corresponding to the first information to the second terminal device on the first sideline authorization; or, when the first information is the SL PRS, transmit the SL PRS and a data packet corresponding to third information to the second terminal device on the first sideline authorization, the third information including part or all of the information in the first destination address except the SL PRS; or, when the first information is the SL PRS, transmit the SL PRS and a data packet corresponding to the SL PRS to the second terminal device on the first sideline authorization; or, when the first information is the SL PRS, transmit the SL PRS to the second terminal device on the first sideline authorization.

[0064] In one design of the present application, the data packet corresponding to the SL PRS does not include a MAC service data unit SDU and a MAC CE; or, the data packet corresponding to the SL PRS includes a MAC protocol data unit PDU subheader; or, the data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, the data packet corresponding to the SL PRS includes a MAC CE associated with the SLPRS.

[0065] In one design of the present application, the transceiver unit is further used to obtain the first sideline authorization.

[0066] In one design of the present application, the transceiver unit is specifically used to receive configuration information from a network device, where the configuration information indicates the first side authorization.

[0067] In one design of the present application, the configuration information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of SL PRS supported for transmission by the first side row authorization; required bandwidth information of SL PRS supported for transmission by the first side row authorization; or information on the number of time domain symbols occupied by SLPRS supported for transmission by the first side row authorization.

[0068] In one design of the present application, the transceiver unit is specifically used to: send fourth information to a network device, wherein the fourth information is used to request a side line authorization that can be used to transmit SL PRS; and receive fifth information from the network device, wherein the fifth information is used to indicate the first side line authorization.

[0069] In one design of the present application, the fifth information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of SL PRS supported for transmission by the first side row authorization; required bandwidth information of SL PRS supported for transmission by the first side row authorization; time domain symbol number information occupied by SL PRS supported for transmission by the first side row authorization; or experience requirement information of positioning service supported by the first side row authorization.

[0070] In an eighth aspect, a communication device is provided, which can be applied to the network device described in the second aspect, and the device includes: a transceiver unit, used to send configuration information to a first terminal device, and the configuration information indicates authorization of the first side.

[0071] In one design of the present application, the configuration information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of SL PRS supported for transmission by the first side row authorization; required bandwidth information of SL PRS supported for transmission by the first side row authorization; or information on the number of time domain symbols occupied by SLPRS supported for transmission by the first side row authorization.

[0072] In the ninth aspect, a communication device is provided, which can be applied to the network equipment described in the third aspect, and the device includes: a transceiver unit, used to receive fourth information from a first terminal device, and the fourth information is used to request a side line authorization that can be used to transmit SL PRS; the transceiver unit is also used to send fifth information to the first terminal device, and the fifth information is used to indicate the first side line authorization.

[0073] In one design of the present application, the fifth information includes one or more of the following: priority information of information supported for transmission by the first side row authorization; priority information of SL PRS supported for transmission by the first side row authorization; required bandwidth information of SL PRS supported for transmission by the first side row authorization; time domain symbol number information occupied by SL PRS supported for transmission by the first side row authorization; or experience requirement information of positioning service supported by the first side row authorization.

[0074] In the tenth aspect, a communication device is provided, comprising: at least one processor, the at least one processor is connected to a memory, the memory is used to store a computer program, and the at least one processor is used to execute the computer program stored in the memory, so that the method in any possible implementation of the first aspect to the third aspect or the first aspect to the third aspect is executed by the communication device.

[0075] In the eleventh aspect, a communication system is provided, comprising: the first terminal device in the method described in the first aspect and other communication equipment that communicates with the first terminal device; the network device in the method described in the second aspect or the third aspect and other communication equipment that communicates with the network device.

[0076] In the twelfth aspect, a computer-readable storage medium is provided, wherein the computer-readable medium stores computer code or instructions; when the computer code or instructions are executed by a processor, the method in the above-mentioned first to third aspects and any possible implementation of the first to third aspects is executed.

[0077] In a thirteenth aspect, a computer program product is provided, comprising computer codes or instructions, which, when executed, enable the method in the above-mentioned first to third aspects and any possible implementation method of the first to third aspects to be implemented.

[0078] The solutions provided in the seventh to thirteenth aspects are used to implement or cooperate with the methods provided in the first to sixth aspects, and therefore can achieve the same or corresponding beneficial effects as the first to sixth aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 A schematic diagram of positioning between terminal devices.

[0080] Figure 2 A schematic diagram of a system architecture applicable to an embodiment of the present application.

[0081] Figure 3 The present invention is a schematic flow chart of MAC PDU grouping based on the priority of logical channels.

[0082] Figure 4 A schematic flow chart of the information transmission method according to an embodiment of the present application.

[0083] Figure 5 A schematic flow chart of an example of a method for information transmission provided in an embodiment of the present application.

[0084] Figure 6 A schematic flow chart of another example of the information transmission method provided in an embodiment of the present application.

[0085] Figure 7 A schematic block diagram of a communication device according to an embodiment of the present application.

[0086] Figure 8 A schematic block diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0087] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0088] The embodiments of the present application can be applied to various communication systems, such as wireless local area network (WLAN), narrow band Internet of Things (NB-IoT), global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE), satellite communication, sidelink (SL), fourth generation (4G) system, fifth generation (5G) system, or new communication systems that will appear in the future. In the communication system, including communication equipment, the communication equipment can use air interface resources for wireless communication. Among them, the communication equipment may include network equipment and terminal devices, and the network equipment may also be called base station equipment. The air interface resources may include at least one of time domain resources, frequency domain resources, code resources and space resources.

[0089] The terminal devices involved in the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication functions. The terminal device may be a subscriber unit, a user equipment (UE), a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem (modulator demodulator, modem), a laptop computer, a machine type communication (MTC) terminal, and a wireless terminal in self-driving, etc. Among them, the user equipment includes a vehicle user equipment. With the rise of the Internet of Things (IOT) technology, more and more devices that did not have communication functions before, such as but not limited to household appliances, vehicles, tool equipment, service equipment and service facilities, have begun to obtain wireless communication functions by configuring wireless communication units, so that they can access wireless communication networks and accept remote control. Such devices have wireless communication functions because they are configured with wireless communication units, so they also belong to the category of wireless communication devices. In addition, the terminal device can also be called a mobile station (MS), a mobile device, a mobile terminal, a wireless terminal, a handset, a client, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. In the embodiment of the present application, the device for realizing the function of the terminal device can be a terminal device; it can also be a device that can support the terminal device to realize the function, such as a chip system, which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. The terminal device provided in the embodiment of the present application can be a whole vehicle, a vehicle-mounted module, a vehicle-mounted unit (on board unit, OBU), a telematics processor (Telematics BOX, T-box), a road side unit (road side unit, RSU) or a chip, and this chip can be installed on a car or on a vehicle-mounted module or a vehicle-mounted unit.In the technical solution provided in the embodiments of the present application, the technical solution provided in the embodiments of the present application is described by taking the device for implementing the functions of the terminal device as a terminal device, and taking the terminal device as a UE as an example.

[0090] Exemplarily, the network device may be an access network device, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home evolved NodeB (or home Node B, HNB), a baseband unit (BBU), a device that performs a base station function in device to device (D2D), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB or a transmission point (e.g., TRP or TP) in NR, one or a group (including multiple) antenna panels of a base station in NR, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (D2D). The network equipment may also be a vehicle-mounted device, a wearable device, a network device in a 6G network, a network device in a future evolved PLMN network, or a network device deployed on a satellite, without limitation. In addition, according to the size of the service coverage area provided, the base station (BS) can be divided into a macro base station for providing macro cells, a micro base station for providing pico cells, and a femto base station, a relay station, and an access point for providing femto cells. With the continuous evolution of wireless communication technology, future base stations may also adopt other names.

[0091] To facilitate the understanding of the embodiments of the present application, the technical solutions related to the embodiments of the present application are briefly introduced below.

[0092] In order to meet the needs of indoor or vehicle positioning scenarios, 3GPP R18 introduced positioning based on SL between terminal devices. Figure 1 Schematic diagram of positioning between terminal devices. SL positioning can be understood as introducing SL into the positioning scenario, for example, introducing at least one network element / terminal device / entity including a PC5 interface that can send a positioning reference signal into the positioning scenario, wherein the PC5 interface is an interface between terminal devices. In the embodiment of the present application, the positioning reference signal takes SL PRS as an example.

[0093] Figure 2 Schematic diagram of system architecture applicable to the embodiment of the present application. The embodiment of the present application can be adapted to SL positioning scenarios, including SL positioning scenarios with network coverage and SL positioning scenarios without network coverage.

[0094] In the SL positioning scenario, SL PRS needs to be transmitted between terminal devices, and positioning-related information may also need to be transmitted, such as positioning-related auxiliary data, capability information, SL PRS configuration information, measurement results, location information, and connection control information. Other data information may also need to be transmitted between terminal devices.

[0095] Specifically, the terminal device can receive the SL PRS sent by other terminal devices, and the terminal device can also measure the SL PRS sent by other terminal devices and obtain measurement results. Among the positioning methods that can be used by the terminal device, each positioning method has its corresponding measurement results. Optionally, the terminal device that sends the SL PRS can first determine the configuration information or auxiliary data information of the SL PRS, and send the SL PRS based on the configuration information or auxiliary data information of the SL PRS; the terminal device that receives the SL PRS can first obtain the configuration information or auxiliary data information of the SL PRS, and then receive the SL PRS based on the configuration information or auxiliary data information of the SL PRS.

[0096] In the SL positioning scenario, since the terminal device needs to transmit the SL PRS, the terminal device can use the sideline grant (SL grant) resources of the SLPRS dedicated resource pool to transmit the SL PRS, and the terminal device can also use the sideline grant resources of the shared resource pool to transmit the SL PRS. Among them, the SL PRS dedicated resource pool is a resource pool specifically used to transmit the SL PRS; the shared resource pool is a resource pool that can be used to transmit data in addition to transmitting the SL PRS. For one SL grant, the same terminal device can only send information to one opposite terminal device. For example, for a dedicated resource pool, the same terminal device can use a SL grant in the dedicated resource pool to transmit the SL PRS to a opposite terminal device. For another example, for a shared resource pool, the same terminal device can use a SL grant in the shared resource pool to simultaneously transmit the SL PRS and data to a opposite terminal device; the same terminal device can also use a SL grant in the shared resource pool to transmit the SL PRS to a opposite terminal device without transmitting data; the same terminal device can also use a SLgrant in the shared resource pool to transmit data to a opposite terminal device without transmitting the SL PRS. The purpose of the SL grant in the shared resource pool selected by different terminal devices may be different; for example, terminal device 1 may also select the SL grant in the shared resource pool for transmitting the SL PRS, while terminal device 2 selects the SL grant in the shared resource pool for transmitting data. Compared with the dedicated resource pool that does not support the transmission of data, the shared resource pool can support the transmission of SL PRS and data. The data in the embodiments of the present application includes MAC CE and / or data corresponding to the logical channel.

[0097] For a SL grant in a dedicated resource pool, when it is necessary to transmit SL PRS to multiple destination addresses, the problem of how to determine to which of the multiple destination addresses the SL grant is used to transmit the SL PRS needs to be solved urgently. In addition, for a SL grant in a shared resource pool, there is a situation where data and SL PRS are transmitted together. When it is necessary to transmit data and / or SL PRS to multiple destination addresses, the problem of how to determine to which of the multiple destination addresses the SL grant is used to transmit data and / or SL PRS, and how to package MAC PDU needs to be solved urgently.

[0098] To this end, an embodiment of the present application proposes a method for information transmission, which can determine, after the first terminal device obtains the SLgrant, that the SL grant is used to transmit information to a first destination address among at least one destination address according to the SL PRS and / or data (including data corresponding to the MAC CE and / or logical channel) that need to be transmitted to at least one destination address, and can determine how to assemble the MAC PDU.

[0099] Figure 3 It is a schematic flow chart of the information transmission method 300 according to an embodiment of the present application.

[0100] 310. The first terminal device selects a first destination address associated with a first side row authorization from at least one destination address, the first destination address having first information with the highest priority among at least one destination address, one of the at least one destination address having an SL PRS, or one of the at least one destination address having an SL PRS and second information, the second information including one or more of a MAC CE and a logical channel. Specifically, the MAC layer of the first terminal device selects a first destination address associated with a first side row authorization from at least one destination address. The first side row authorization is used to transmit information and / or data to a second terminal device corresponding to the first destination address.

[0101] Among them, one of the at least one destination addresses has SL PRS, which can be understood as the information that needs to be transmitted to one of the at least one destination addresses includes SL PRS, or one of the at least one destination addresses has the need to transmit SL PRS. One of the at least one destination addresses has SL PRS and second information, which can be understood as the information that needs to be transmitted to one of the at least one destination addresses includes SLPRS and second information, or one of the at least one destination addresses has the need to transmit SL PRS and second information. In an embodiment of the present application, the second information can be understood as the data packet corresponding to the second information. For example, when the second information includes a logical channel, the logical channel cannot be transmitted, and what is actually transmitted is the data on the logical channel. The logical channel can be understood as the data packet corresponding to the logical channel / the data corresponding to the logical channel.

[0102] Among at least one destination address, only one destination address may have the transmission requirement of SL PRS, or each destination address may have the transmission requirement of SL PRS. For example, at least one destination address includes destination address 1, destination address 2, and destination address 3, and SL PRS needs to be transmitted to destination address 1, MAC CE needs to be transmitted to destination address 2, and MAC CE and data packets corresponding to logical channels need to be transmitted to destination address 3. For another example, at least one destination address includes destination address 1, destination address 2, and destination address 3, and SL PRS and MAC CE need to be transmitted to destination address 1, MAC CE needs to be transmitted to destination address 2, and MAC CE and data packets corresponding to logical channels need to be transmitted to destination address 3. For another example, at least one destination address includes destination address 1, destination address 2, and destination address 3, and SL PRS1 and MAC CE need to be transmitted to destination address 1, SL PRS2 needs to be transmitted to destination address 2, and SL PRS3 and data packets corresponding to logical channels need to be transmitted to destination address 3. For another example, at least one destination address includes destination address 1, destination address 2, and destination address 3. SL PRS1 needs to be transmitted to destination address 1, SL PRS2 needs to be transmitted to destination address 2, and SL PRS3 needs to be transmitted to destination address 3.

[0103] The first destination address has the first information with the highest priority among at least one destination address. It can be understood that the information that needs to be transmitted to the first destination address includes the first information with the highest priority among the information that needs to be transmitted to all the destination addresses among at least one destination address, or the data corresponding to the information that needs to be transmitted to the first destination address includes the data corresponding to the first information with the highest priority among the data corresponding to the information that needs to be transmitted to all the destination addresses among at least one destination address.

[0104] Exemplarily, the first terminal device determines that the information with the highest priority is the first information by comparing the priority of the SL PRS, the priority of the MAC CE, and the priority of the logical channel in the information that needs to be transmitted to all destination addresses in at least one destination address; when the information that needs to be transmitted to the first destination address includes the first information, it is determined that the first side authorization is associated with the first destination address, and the first side authorization is used to transmit information and / or data to the first destination address. The first information can be the SL PRS, or the MAC CE, or the data corresponding to the logical channel.

[0105] Specifically, the first terminal device can compare all the information that needs to be transmitted to at least one destination address, and select the destination address corresponding to the first information with the highest priority as the first destination address. Alternatively, the first terminal device can first select the information with the highest priority among the information that needs to be transmitted to one of the at least one destination address, and then determine the first destination address corresponding to the first information with the highest priority by comparing the priorities of the information with the highest priority corresponding to each of the at least one destination address. The present application does not limit this. For example, at least one destination address includes destination address 1, destination address 2, and destination address 3, and SL PRS1 needs to be transmitted to destination address 1, MAC CE1 needs to be transmitted to destination address 2, and MAC CE2 and data corresponding to logical channel 1 need to be transmitted to destination address 3; if the first terminal device determines that SL PRS1 has the highest priority among SL PRS1, MAC CE1, MAC CE2, and logical channel 1, and the SL PRS1 is the information in the information that needs to be transmitted to the destination address 1, then it is determined that the first side row authorization is associated with the destination address 1, and the SL PRS1 is the first information. For another example, at least one destination address includes destination address 1, destination address 2 and destination address 3, and SL PRS1 needs to be transmitted to destination address 1, SL PRS2 needs to be transmitted to destination address 2, and SL PRS3 needs to be transmitted to destination address 3; if the first terminal device determines that SL PRS2 has the highest priority among SL PRS1, SL PRS2 and SL PRS3, and SL PRS2 is the information that needs to be transmitted to destination address 2, then it is determined that the first side row is authorized to be associated with destination address 2, and SL PRS2 is the first information. For another example, at least one destination address includes destination address 1, destination address 2 and destination address 3, and SL PRS1 and data corresponding to logical channel 1 need to be transmitted to destination address 1, MAC CE2 needs to be transmitted to destination address 2, and data corresponding to logical channel 2 needs to be transmitted to destination address 3; if the first terminal device determines that the data corresponding to logical channel 2 has the highest priority among SL PRS1, data corresponding to logical channel 1, MACCE2, and data corresponding to logical channel 2, and the data corresponding to logical channel 2 is the information that needs to be transmitted to destination address 3, then it is determined that the first side row is authorized to associate with the destination address 3, and the logical channel 2 (the data corresponding to the logical channel 2) is the first information.For another example, at least one destination address includes destination address 1, destination address 2 and destination address 3, the information with the highest priority among the information that needs to be transmitted to destination address 1 is SLPRS1, the information with the highest priority among the information that needs to be transmitted to destination address 2 is MAC CE1, and the information with the highest priority among the information that needs to be transmitted to destination address 3 is the data corresponding to logical channel 1; if the first terminal device determines that the information with the highest priority among SL PRS1, MACCE1, and logical channel 1 is SL PRS1, and SL PRS1 is the information among the information that needs to be transmitted to destination address 1, then it is determined that the first side row is authorized to be associated with destination address 1, and SL PRS1 is the first information.

[0106] The first side row authorization can be understood as the first transmission opportunity. Optionally, the first side row authorization is a side row authorization of a shared resource pool, and the first side row authorization can be used to transmit at least one of SL PRS, MAC CE or a logical channel. It can be understood that after the first terminal device obtains the first side row authorization, the first side row authorization can be selected to be used to transmit at least one of SL PRS, MAC CE or a logical channel, and the specific information transmitted on the first side row authorization depends on the priority of the information to be transmitted by the first terminal device.

[0107] Optionally, the first side row authorization is a side row authorization of a dedicated resource pool, and the first side row authorization is used to transmit SL PRS. It can be understood that after the first terminal device obtains the first side row authorization, it can only select the first side row authorization for transmitting SLPRS, and the specific information transmitted on the first side row authorization depends on the priority of the SL PRS to be transmitted by the first terminal device.

[0108] The priority of the logical channel can be determined by the first terminal device through pre-configuration or network-side configuration. The priority of the logical channel is divided into 8 levels, which can be understood as the logical channel is divided into 8 logical channel groups (LCGs). The priority values ​​corresponding to the 8 LCGs are 1 to 8; the smaller the priority value, the higher the priority of the corresponding logical channel. The priority of the logical channel and MAC CE is ranked from high to low as follows:

[0109] 1) Data from the sidelink control channel (SCCH);

[0110] 2) Sidelink channel state information (CSI) reporting MAC control element (CE);

[0111] 3) Sidelink terminal device coordination request MAC CE and sidelink terminal device coordination information MAC CE;

[0112] 4) Sidelink discontinuous reception (DRX) command MAC CE;

[0113] 5) Data from any sidelink traffic channel (STCH).

[0114] Among them, the data from SCCH is usually high-level control information, such as PC5-S information, PC5-radio resource control (RRC) information. The connection control management information from SCCH has the highest priority, followed by the priority of MAC CE, and finally the priority of data from STCH. The priority values ​​indicated by SCCH and MAC CE to the physical layer are both 1, but it still needs to judge the priority in the above order.

[0115] In order to make the priority of SL PRS comparable with that of MAC CE and logical channels, optionally, the priority of SL PRS may include the following definition method.

[0116] (1) Define the priority of SL PRS to be the same as the priority of MAC CE, and the priority of SL PRS is higher than the priority of STCH data. SL PRS can have one or more priority levels. Optionally, the priority level of SL PRS may be related to the experience requirements of the SL positioning service. For example, if the accuracy requirement of the SL positioning service is high, or the bandwidth of the SL PRS to be transmitted is large, or the number of time domain symbols occupied by the SL PRS to be transmitted is large, then the SL PRS to be sent may have a higher priority. In an embodiment of the present application, the number of time domain symbols can be understood as the number of time domain resources.

[0117] For example, the priorities of logical channels, MAC CE, and SL PRS are ranked from high to low as follows:

[0118] 1) Data from SCCH;

[0119] 2) Sidelink CSI reporting MAC CE;

[0120] 3) Sidelink terminal device coordination request MAC CE and sidelink terminal device coordination information MAC CE;

[0121] 4) Sidelink DRX command MAC CE;

[0122] 5) SL PRS;

[0123] 6) Data from any STCH.

[0124] For example, when the priority value of SL PRS is 1 and the priority value of STCH data is also 1, the priority of SL PRS will also take precedence over the priority of STCH data. The priority of SL PRS is handled in the same way as the priority of MAC CE. For example, when the priority value of SL PRS is consistent with the priority value of STCH, the priority of SL PRS is higher than the priority of STCH.

[0125] (2) Define the priority of SL PRS to be the same as or corresponding to the priority level of LCG. For example, the priority of SL PRS is the same as the priority level of LCG, and the priority of SL PRS can be divided into 8 levels, corresponding one to one to the 8 levels of LCG. Alternatively, the priority of SL PRS corresponds to the priority level of LCG, and one level of the priority of SL PRS can correspond to multiple levels of the priority of LCG. For example, the priority of SL PRS can be divided into 3 levels, where priority level 1 of SL PRS corresponds to priority levels 1, 2, and 3 of LCG, priority level 2 of SL PRS corresponds to priority levels 4, 5, and 6 of LCG, and priority level 3 of SL PRS corresponds to priority levels 7 and 8 of LCG.

[0126] For example, the priorities of logical channels, MAC CE, and SL PRS are ranked from high to low as follows:

[0127] 1) Data from SCCH;

[0128] 2) Sidelink CSI reporting MAC CE;

[0129] 3) Sidelink terminal device coordination request MAC CE and sidelink terminal device coordination information MAC CE;

[0130] 4) Sidelink DRX command MAC CE;

[0131] 5) Data and SL PRS from any STCH.

[0132] At this time, when the priority value of SL PRS is 1, and the priority value of SCCH data and the priority value of MAC CE are both 1, the priority of SCCH data and the priority of MAC CE will also take precedence over the priority of SL PRS. The priority of SL PRS is processed in the same way as the logical channel priority corresponding to STCH data. For example, when the priority value of SL PRS is consistent with the priority value of SCCH or the priority value of MAC CCE, the priority of SL PRS is lower than the priority of SCCH.

[0133] Optionally, the priority level of the SL PRS may be related to the parameters of the SL PRS, and the parameters of the SL PRS include the number of time domain symbols occupied by the SLPRS and the required bandwidth of the SL PRS. Exemplarily, the priority level of the SL PRS is related to the number of time domain symbols occupied by the SL PRS, for example, the priority of the SL PRS is divided into 3 levels, the SL PRS with a priority level of 1 occupies 4 time domain symbols, the SL PRS with a priority level of 2 occupies 3 time domain symbols, and the SL PRS with a priority level of 3 occupies 2 time domain symbols. Exemplarily, the priority level of the SL PRS is related to the required bandwidth of the SL PRS, for example, the priority of the SL PRS is divided into 3 levels, the required bandwidth of the SL PRS with a priority level of 1 occupies the entire bandwidth of the resource pool, the required bandwidth of the SL PRS with a priority level of 2 occupies 1 / 2 of the bandwidth of the resource pool, and the required bandwidth of the SL PRS with a priority level of 3 occupies 1 / 3 of the bandwidth of the resource pool. For example, the priority of SL PRS is divided into 2 levels, the required bandwidth of SL PRS with priority level 1 is 100MHz, and the required bandwidth of SL PRS with priority level 2 is 40MHz. For example, the priority of SL PRS is divided into 2 levels, the required bandwidth of SL PRS with priority level 1 ranges from 100MHz to 40MHz, and the required bandwidth of SL PRS with priority level 2 ranges from less than 40MHz.

[0134] Optionally, a MAC CE associated with the SL PRS can be generated for the SL PRS, and the MAC CE associated with the SL PRS has the same priority as the SL PRS. If the priority of the SL PRS is defined to be the same as the priority of the MAC CE, the priority of the MAC CE associated with the SL PRS is higher than the priority of the logical channel corresponding to the STCH data. If the priority of the SL PRS is defined to be the same as or corresponding to the priority of the LCG of the STCH, the priority of the MAC CE associated with the SL PRS is one of the priorities of the LCG.

[0135] Based on the defined priority of the SL PRS, or based on the priority corresponding to the SL PRS, the priorities of the SL PRS, MACCE (if any), and data corresponding to the logical channel (if any) can be compared to determine the first information with the highest priority.

[0136] Optionally, before the first terminal device selects the first destination address associated with the first sideline authorization from at least one destination address, it can be understood that before step 310, the first terminal device obtains the first sideline authorization; specifically, the MAC layer of the first terminal device obtains the first sideline authorization. The first terminal device obtains the first sideline authorization in the following two implementations.

[0137] In one implementation, the first terminal device obtains the first sideline authorization based on configuration information of a resource pool. The resource pool includes a shared resource pool or a dedicated resource pool.

[0138] Exemplarily, the network device sends configuration information to the first terminal device, and the configuration information indicates a first side-row authorization; correspondingly, the first terminal device receives configuration information from the network device, and the configuration information may be configuration information for configuring a shared resource pool, or the configuration information may be configuration information for configuring a dedicated resource pool, and the first terminal device obtains the first side-row authorization from the shared resource pool / dedicated resource pool configured by the configuration information. The first side-row authorization is a side-row transmission resource selected by the first terminal device from the configured shared resource pool / dedicated resource pool. The configuration information may be sent by the network device to the first terminal device via an RRC message or a system message.

[0139] Exemplarily, the first terminal device may also acquire configuration information of the shared resource pool / dedicated resource pool through pre-configuration information, so that the first terminal device can determine the first side authorization from the pre-configured shared resource pool / dedicated resource pool.

[0140] Optionally, the configuration information of the resource pool includes one or more of the following:

[0141] Priority information for supporting transmitted information;

[0142] Priority information of SL PRS supported for transmission;

[0143] The required bandwidth information of the SL PRS to support the transmission; or,

[0144] Supports the information on the number of time domain symbols occupied by the transmitted SL PRS.

[0145] Among them, the configuration information of the resource pool can be used to configure the priority information of the information supported for transmission by the resource pool, and can indicate the priority range or priority list of the information supported for transmission by the side authorization selected from the resource pool. For example, the first side authorization is a resource selected from the resource pool, and the first side authorization only supports information with a transmission priority lower than or equal to a first threshold. The first threshold may be indicated by the network device to the first terminal device, and the first threshold may also be predefined. For another example, the first side authorization is a resource selected from the resource pool, and the first side authorization only supports information whose transmission priority is included in a priority list. The priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side authorization is a resource selected from the resource pool, and the first side authorization may also only support information with a transmission priority higher than or equal to the first threshold. The first side authorization may also only support information with a transmission priority higher than or equal to the first threshold and lower than or equal to the second threshold. The priority corresponding to the first threshold is lower than the priority corresponding to the second threshold. The embodiment of the present application does not limit this.

[0146] The configuration information of the resource pool can be used to configure the priority information of the SL PRS supported for transmission by the resource pool, and can indicate the priority range or priority list of the SL PRS supported for transmission by the sideline authorization selected from the resource pool. For example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports SL PRS with a transmission priority equal to a third threshold. Exemplarily, the priority value of the SL PRS supported for transmission by the first sideline authorization is 3. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports SL PRS with a transmission priority lower than or equal to a third threshold. The third threshold may be indicated by the network device to the first terminal device, and the third threshold may also be predefined. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports SL PRS with a transmission priority included in a priority list. The priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side row authorization is a resource selected from the resource pool, and the first side row authorization may also only support SL PRS with a transmission priority higher than or equal to a fourth threshold, and the fourth threshold may be indicated by the network device to the first terminal device, and the fourth threshold may also be predefined. For another example, the first side row authorization is a resource selected from the resource pool, and the first side row authorization may also only support SL PRS with a transmission priority higher than or equal to a third threshold, and the first side row authorization may also only support SLPRS with a transmission priority higher than or equal to the third threshold and lower than or equal to the fourth threshold, and the priority corresponding to the third threshold is lower than the priority corresponding to the fourth threshold, and the embodiments of the present application do not limit this.

[0147] The configuration information of the resource pool can be used to configure the required bandwidth information of the SL PRS supported by the resource pool for transmission, and can indicate the value of the required bandwidth or the range of the required bandwidth of the SL PRS supported for transmission by the sideline authorization selected from the resource pool. For example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the SL PRS with a transmission required bandwidth of the fifth threshold. Exemplarily, the fifth threshold is 40MHz. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the SL PRS with a transmission required bandwidth less than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the SL PRS with a transmission required bandwidth greater than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports SL PRS with a transmission requirement bandwidth within a range. Exemplarily, the range of the transmission requirement bandwidth of SL PRS supported by the first sideline authorization is 40MHz to 60MHz.

[0148] The configuration information of the resource pool can be used to configure the information about the number of time domain symbols occupied by the SL PRS supported for transmission by the resource pool, and can indicate the number of time domain symbols or the range of time domain symbols occupied by the SL PRS supported for transmission by the sideline authorization selected from the resource pool. For example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the transmission of an SL PRS whose number of time domain symbols occupied is equal to a sixth threshold. Exemplarily, the sixth threshold is 3. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the transmission of an SL PRS whose number of time domain symbols occupied is less than or equal to a sixth threshold. The sixth threshold may be an indication from the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first sideline authorization is a resource selected from the resource pool, and the first sideline authorization only supports the transmission of an SL PRS whose number of time domain symbols occupied is greater than or equal to a sixth threshold. The sixth threshold may be an indication from the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first side row authorization is a resource selected from the resource pool, and the first side row authorization only supports the transmission of SL PRS whose number of time domain symbols occupied is within a certain range. Exemplarily, the first side row authorization supports the transmission of SL PRS whose number of time domain symbols occupied is in the range of 2 to 4.

[0149] Specifically, the first side authorization is selected from the resource pool, which can also be understood as the first terminal device can determine one or more of the following according to the configuration information of the resource pool:

[0150] The first side row authorizes the priority information of the information supported for transmission;

[0151] The priority information of the SL PRS supported by the first side line authorization transmission;

[0152] The first sideline grant supports the transmission of SL PRS required bandwidth information;

[0153] Periodic information of the first side authorization; or,

[0154] The first sideline grant supports information on the number of time domain symbols occupied by the SL PRS transmitted.

[0155] Among them, the priority information of the information supported for transmission by the first side row authorization may indicate the priority range or priority list of the information supported for transmission by the first side row authorization. For example, the first side row authorization only supports information whose transmission priority is lower than or equal to a first threshold value, and the first threshold value may be indicated by the network device to the first terminal device, and the first threshold value may also be predefined. For another example, the first side row authorization only supports information whose transmission priority is included in a priority list, and the priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side row authorization may also only support information whose transmission priority is lower than or equal to a second threshold value, and the second threshold value may be indicated by the network device to the first terminal device, and the second threshold value may also be predefined. For another example, the first side row authorization may also only support information whose transmission priority is higher than or equal to the first threshold value, and the first side row authorization may also only support information whose transmission priority is higher than or equal to the first threshold value and lower than or equal to the second threshold value, and the priority corresponding to the first threshold value is lower than the priority corresponding to the second threshold value, and the embodiments of the present application do not limit this.

[0156] The priority information of the SL PRS supported for transmission by the first side row authorization may indicate the priority range or priority list of the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the SL PRS whose transmission priority is equal to the third threshold. Exemplarily, the priority value of the SL PRS supported for transmission by the first side row authorization is 3. For another example, the first side row authorization only supports the SL PRS whose transmission priority is lower than or equal to the third threshold. The third threshold may be indicated by the network device to the first terminal device, and the third threshold may also be predefined. For another example, the first side row authorization only supports the SL PRS whose transmission priority is included in the priority list. The priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side row authorization may also only support the SL PRS whose transmission priority is higher than or equal to the fourth threshold. The fourth threshold may be indicated by the network device to the first terminal device, and the fourth threshold may also be predefined. For another example, the first side row authorization may only support SL PRS with a transmission priority higher than or equal to a third threshold. The first side row authorization may also only support SL PRS with a transmission priority higher than or equal to the third threshold and lower than or equal to a fourth threshold. The priority corresponding to the third threshold is lower than the priority corresponding to the fourth threshold. This embodiment of the present application does not limit this.

[0157] The required bandwidth information of the SL PRS supported for transmission by the first side row authorization may indicate the value of the required bandwidth or the range of the required bandwidth of the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is equal to the fifth threshold. Exemplarily, the fifth threshold is 40MHz. For another example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is less than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is greater than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first side row authorization supports the SL PRS whose required transmission bandwidth is within a range. Exemplarily, the range of the required bandwidth of the SL PRS supported for transmission by the first side row authorization is 40MHz to 60MHz.

[0158] The period information of the first sideline authorization may indicate that the first sideline authorization is a periodic sideline transmission resource and may indicate the occurrence period of the first sideline authorization. For example, the period supported by the first sideline authorization is 20ms, indicating that the sideline transmission resource corresponding to the first sideline authorization appears once every 20ms and can be used for sideline transmission.

[0159] The information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization may indicate the number of time domain symbols or the range of the number of symbols occupied by the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the transmission of the number of time domain symbols occupied by a sixth threshold, and illustratively, the sixth threshold is 3. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is less than or equal to the sixth threshold, and the sixth threshold may be indicated by the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is greater than or equal to the sixth threshold, and the sixth threshold may be indicated by the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is within a certain range, and illustratively, the range of the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization is 2 to 4.

[0160] In all embodiments of the present application, "priority is higher than or equal to" includes the cases where priority is higher, priority is equal to, and priority is not lower than; "priority is lower than or equal to" includes the cases where priority is lower, priority is equal to, and priority is not higher than. Further, in the comparison between the priority and the threshold, when the smaller the priority value is, the higher the priority is, the priority is higher than or equal to the threshold, corresponding to the priority value being less than or equal to the threshold; when the larger the priority value is, the higher the priority is, the priority is higher than or equal to the threshold, corresponding to the priority value being greater than or equal to the threshold. "Required bandwidth is less than or equal to" includes the cases where required bandwidth is less than, required bandwidth is equal to, and required bandwidth is not greater than; "Required bandwidth is greater than or equal to" includes the cases where required bandwidth is greater than, required bandwidth is equal to, and required bandwidth is not less than. "The number of time domain symbols is less than or equal to" includes the cases where the number of time domain symbols is less than, the number of time domain symbols is equal to, and the number of time domain symbols is not greater than; "The number of time domain symbols is greater than or equal to" includes the cases where the number of time domain symbols is greater than, the number of time domain symbols is equal to, and the number of time domain symbols is not less than.

[0161] In another implementation, the network device sends fifth information to the first terminal apparatus, where the fifth information is used to indicate the first side authorization. Correspondingly, the first terminal apparatus receives the fifth information from the network device, and the terminal apparatus determines the first side authorization according to the fifth information.

[0162] Exemplarily, the fifth information is downlink control information (DCI), and the network device indicates the first side line authorization to the first terminal device through DCI; or, the fifth information is an RRC message, and the network device indicates the first side line authorization to the first terminal device through an RRC message.

[0163] Optionally, before the first terminal device receives the fifth information from the network device, the first terminal device sends fourth information to the network device, where the fourth information is used to request a sideline authorization that can be used to transmit the SL PRS; correspondingly, the network device receives the fourth information from the first terminal device, and the network device sends fifth information to the first terminal device according to the fourth information. The fourth information may be an RRC message or a MAC CE.

[0164] Exemplarily, the first terminal device may send the fourth information to the network device via a resource request message such as MAC CE, and correspondingly, the fifth information sent by the network device to the first terminal device may be DCI, such as scheduling the first sidelink authorization via DCI, or activating the periodic first sidelink authorization configured via RRC via DCI. Alternatively, the first terminal device may send the fourth information to the network device via an RRC message or MAC CE, for example, the first terminal device may send the fourth information to the network device via a sidelink user information (sidelink UE Information) message or MAC CE; correspondingly, the network device may send the fifth information to the first terminal device via an RRC reconfiguration message or a system message.

[0165] Optionally, before the first terminal device sends the fourth information to the network device, the network device sends the sixth information to the first terminal device, and correspondingly, the first terminal device receives the sixth information sent by the network device. The sixth information is used to configure the sideline grant used by the first terminal device to transmit SL PRS, for example, the sideline grant used to transmit SL PRS is a periodic sideline grant, or the sideline grant used to transmit SL PRS is a configured grant of type 2 (Configured Grant Type 2). Optionally, the sixth information may include the time-frequency resource location of the first sideline grant. Optionally, the sixth information may also include periodic information of the first sideline grant, which is used to indicate the periodic sideline transmission resources used to transmit SL PRS. Optionally, the sixth information may also indicate an initial state of the periodic side authorization for transmitting SL PRS, and the initial state may include an activated state and an inactivated state. The activated state indicates that the first terminal device can use the periodic side authorization after receiving the periodic side authorization configured by the sixth information. The inactivated state indicates that the first terminal device cannot use the resource after receiving the periodic side authorization configured by the sixth information, and needs to wait for the network device to send DCI for activation, such as by sending the fifth information for activation. Optionally, the sixth information also includes index information of the configured periodically transmitted side authorization, such as the index of the side authorization configured by the network device to the first terminal device through the sixth information. Optionally, the sixth information also includes index information of the resource pool where the configured side authorization is located. For example, the first terminal device can uniquely determine the first side authorization through the index information of the resource pool.

[0166] Optionally, the fourth information or the fifth information includes one or more of the following:

[0167] The first side line authorizes the priority information of the information supported for transmission;

[0168] The priority information of the SL PRS supported by the first side line authorization transmission;

[0169] The first sideline grant supports the transmission of SL PRS required bandwidth information;

[0170] Information on the number of time domain symbols occupied by the SL PRS supported by the first sideline grant transmission;

[0171] Index information corresponding to the first side row authorization;

[0172] The index information of the resource pool where the first side authorization is located; or,

[0173] The first side authorizes the experience requirement information of the positioning service supported.

[0174] Among them, the priority information of the information supported for transmission by the first side row authorization may indicate the priority range or priority list of the information supported for transmission by the first side row authorization. For example, the first side row authorization only supports information whose transmission priority is lower than or equal to a first threshold value, and the first threshold value may be indicated by the network device to the first terminal device, and the first threshold value may also be predefined. For another example, the first side row authorization only supports information whose transmission priority is included in a priority list, and the priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side row authorization may also only support information whose transmission priority is lower than or equal to a second threshold value, and the second threshold value may be indicated by the network device to the first terminal device, and the second threshold value may also be predefined. For another example, the first side row authorization may also only support information whose transmission priority is higher than or equal to the first threshold value, and the first side row authorization may also only support information whose transmission priority is higher than or equal to the first threshold value and lower than or equal to the second threshold value, and the priority corresponding to the first threshold value is lower than the priority corresponding to the second threshold value, and the embodiments of the present application do not limit this.

[0175] The priority information of the SL PRS supported for transmission by the first side row authorization may indicate the priority range or priority list of the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the SL PRS whose transmission priority is equal to the third threshold. Exemplarily, the priority value of the SL PRS supported for transmission by the first side row authorization is 3. For another example, the first side row authorization only supports the SL PRS whose transmission priority is lower than or equal to the third threshold. The third threshold may be indicated by the network device to the first terminal device, and the third threshold may also be predefined. For another example, the first side row authorization only supports the SL PRS whose transmission priority is included in the priority list. The priority list may be indicated by the network device to the first terminal device, and the priority list may also be predefined. For another example, the first side row authorization may also only support the SL PRS whose transmission priority is higher than or equal to the fourth threshold. The fourth threshold may be indicated by the network device to the first terminal device, and the fourth threshold may also be predefined. For another example, the first side row authorization may only support SL PRS with a transmission priority higher than or equal to a third threshold. The first side row authorization may also only support SL PRS with a transmission priority higher than or equal to the third threshold and lower than or equal to a fourth threshold. The priority corresponding to the third threshold is lower than the priority corresponding to the fourth threshold. This embodiment of the present application does not limit this.

[0176] The required bandwidth information of the SL PRS supported for transmission by the first side row authorization may indicate the value of the required bandwidth or the range of the required bandwidth of the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is equal to the fifth threshold. Exemplarily, the fifth threshold is 40MHz. For another example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is less than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first side row authorization only supports the SL PRS whose required transmission bandwidth is greater than or equal to the fifth threshold. The fifth threshold may be indicated by the network device to the first terminal device, and the fifth threshold may also be predefined. For another example, the first side row authorization supports the SL PRS whose required transmission bandwidth is within a range. Exemplarily, the range of the required bandwidth of the SL PRS supported for transmission by the first side row authorization is 40MHz to 60MHz.

[0177] The information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization may indicate the number of time domain symbols or the range of the number of symbols occupied by the SL PRS supported for transmission by the first side row authorization. For example, the first side row authorization only supports the transmission of the number of time domain symbols occupied by a sixth threshold, and illustratively, the sixth threshold is 3. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is less than or equal to the sixth threshold, and the sixth threshold may be indicated by the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is greater than or equal to the sixth threshold, and the sixth threshold may be indicated by the network device to the first terminal device, and the sixth threshold may also be predefined. For another example, the first side row authorization only supports the transmission of the SL PRS whose number of time domain symbols occupied is within a certain range, and illustratively, the range of the number of time domain symbols occupied by the SL PRS supported for transmission by the first side row authorization is 2 to 4.

[0178] The index information corresponding to the first side row authorization may indicate the index of the first side row authorization, and the index of the first side row authorization may be the index of the first side row authorization indicated in the sixth information sent by the network device and received by the first terminal device. Wherein, when the network device configures the periodic side row transmission resources of the first terminal device or the first side row authorization is a side row transmission resource of Configured Grant type 2, it indicates the resource pool information where the side row transmission resources are located and the time-frequency resource position of the side row transmission resources. The first terminal device determines the unactivated first side row authorization based on the received sixth information. When the first terminal device determines that the first side row authorization needs to be used based on the upper-layer service, the fourth information may be sent to the network device, carrying the index information corresponding to the first side row authorization, so that the network device determines that the first terminal device wishes to activate the first side row authorization. The network device activates the first side row authorization by sending the fifth information to the first terminal device, for example, through DCI indication. Accordingly, when the first terminal device determines that it does not need to continue to use the first side row authorization according to the upper layer service, a MAC CE carrying the index information corresponding to the first side row authorization can be sent to the network device to be used for the network device to determine that the first terminal device wishes to deactivate the first side row authorization, wherein the MAC CE may be the same as or different from the fourth information. The network device sends a DCI instruction to the first terminal device to deactivate the first side row authorization. Accordingly, when the first terminal device determines that it does not need to continue to use the first side row authorization according to the upper layer service, a MAC CE carrying the index information corresponding to the first side row authorization can be sent to the network device to be used for the network device to determine that the first terminal device wishes to deactivate the first side row authorization, wherein the MAC CE may be the same as or different from the fourth information. The network device can also distinguish whether the first terminal device requests activation or deactivation or configuration of the sidelink configured grant according to the MAC CE. For example, a possible MACCE format can reuse the format of the MAC CE of the sidelink configured grant confirmation (Sidelink Configured Grant Confirmation MACCE), with the difference that the MAC subheader adopts a new LCID value. The network device determines that it is the first terminal device that requests to activate the configured sidelink configured grant by receiving the LCID with the corresponding value, and determines the index of the first sidelink authorization that the first terminal device expects to activate by indicating "1" in the bit map, and determines the index of the first sidelink authorization that the first terminal device expects to deactivate by indicating "0" in the bit map, thereby determining the request of the first terminal device. For another example, another possible MAC CE format may also be to directly carry the index information corresponding to the first sidelink authorization and 1-bit indication information, which is used by the network device to determine the first sidelink authorization that the first terminal device expects to activate or deactivate.For another example, another possibility is to distinguish the first side row authorization that the first terminal device requests to activate or deactivate through different LCIDs and index information corresponding to the first side row authorization, that is, to use different MAC CEs to indicate requests to activate or deactivate the first side row authorization, respectively. The network device sends a DCI instruction to the first terminal device to deactivate the first side row authorization. Since the first terminal device knows better whether it is necessary to transmit the SL PRS, based on the first terminal device's request for SLPRS transmission resources, the network device can activate and deactivate the first side row authorization used by the first terminal device to transmit the SL PRS, and can use the first side row authorization more effectively, thereby improving the efficiency of side row transmission resource utilization. In this embodiment, the solution of requesting the network device to activate or deactivate the first side row authorization carried by the MAC CE can be implemented separately, thereby improving the efficiency of side row transmission resource utilization.

[0179] The index information of the resource pool where the first side row authorization is located can indicate the resource pool where the first side row authorization is located, thereby determining the first side row authorization. For example, the network device determines the first side row authorization indicated by the first terminal device through the received fourth information and according to the resource pool where the first side row authorization indicated by the fourth information is located, for example, the first side row authorization is a periodic side row transmission resource or the first side row authorization is a side row transmission resource of Configured Grant type 2. It is used to indicate that the first terminal device expects to activate the first side row authorization, so that after the network device sends the activation of the first side row authorization through DCI, the first side row authorization is used. For another example, the first terminal device determines the activated first side row authorization by receiving the fifth information sent by the network device and according to the index of the resource pool where the side row authorization is located indicated by the fifth information, wherein the first side row authorization is a periodic side row transmission resource. For another example, the index of the resource pool where the first side row authorization is located can be the index of the resource pool where the first side row authorization is located included in the sixth information sent by the network device received by the first terminal device. Among them, the network device configures the periodic side transmission resources of the first terminal device, indicates the resource pool information where the side transmission resources are located and the time-frequency resource position of the side transmission resources, and the first terminal device determines the unactivated first side authorization based on the received sixth information. When the first terminal device determines that the first side authorization needs to be used according to the upper-layer service, the fourth information carrying the resource pool index information where the first side authorization is located can be sent to the network device, which is used for the network device to determine that the first terminal device wants to activate the first side authorization. The network device sends the fifth information to the first terminal device, for example, through DCI to indicate activation of the first side authorization. Correspondingly, when the first terminal device determines that the first side authorization does not need to be used anymore according to the upper-layer service, the MAC CE carrying the resource pool index information where the first side authorization is located can be sent to the network device, which is used for the network device to determine that the first terminal device wants to deactivate the first side authorization, wherein the MAC CE can be the same as or different from the fourth information. The network device sends a DCI instruction to the first terminal device to deactivate the first side authorization. Since the first terminal device is more aware of whether the SL PRS needs to be transmitted, based on the first terminal device's request for SL PRS transmission resources, the network device can activate and deactivate the first side authorization used by the first terminal device to transmit the SL PRS, so that the first side authorization can be used more effectively, and the efficiency of the use of side transmission resources can be improved. In this embodiment, the solution of requesting the network device to activate and deactivate the first side authorization carried by the MAC CE can be implemented separately, thereby improving the efficiency of the use of side transmission resources.

[0180] The experience requirement information of the positioning service supported by the first side line authorization can indicate the accuracy requirement of the positioning service supported by the first side line authorization; when the accuracy requirement of the positioning service of the first terminal device is high, the bandwidth of the SL PRS to be transmitted is large or the number of time domain symbols occupied by the SL PRS to be transmitted is large; when the accuracy requirement of the positioning service of the first terminal device is low, the bandwidth of the SL PRS to be transmitted is small or the number of time domain symbols occupied by the SL PRS to be transmitted is small.

[0181] Optionally, the first terminal device determines the information that the first side line authorization supports transmission to determine at least one destination address. It can be understood that the first side line authorization has requirements for the information supported for transmission, such as determining that the first side line authorization is used for a destination address with information transmission requirements, or the first side line authorization has requirements for the content of the information supported for transmission, or the first side line authorization has requirements for the priority of the information supported for transmission, or the first side line authorization has requirements for the information parameters of the information supported for transmission, or the first side line authorization has requirements for the time of information transmission. The above multiple requirements can be combined.

[0182] Exemplarily, the first terminal device has five destination addresses for transmission requirements, including destination address 1, destination address 2, destination address 3, destination address 4, and destination address 5.

[0183] 1) SL PRS1 and MAC CE1 need to be transmitted to destination address 1;

[0184] 2) SL PRS2 needs to be transmitted to destination address 2;

[0185] 3) Data corresponding to SL PRS3 and logical channel 1 needs to be transmitted to destination address 3;

[0186] 4) Data corresponding to logical channel 2 needs to be transmitted to destination address 4;

[0187] 5) The data corresponding to MAC CE2 and logical channel 3 needs to be transmitted to destination address 5.

[0188] For example, the first terminal device obtains the first side authorization, and the first terminal device needs to determine the destination address with information transmission requirements. For example, after the first terminal device obtains the first side authorization, the first terminal device determines that destination address 1, destination address 2, destination address 3, destination address 4, and destination address 5 all have information transmission requirements, and thus determines at least one destination address to be destination address 1, destination address 2, destination address 3, destination address 4, and destination address 5.

[0189] For example, the first side row authorization has requirements on the content of the information supported for transmission. If the first terminal device determines that the first side row authorization is a transmission resource of a dedicated resource pool, the first side row authorization cannot transmit the data corresponding to the MAC CE and the logical channel, thereby determining at least one destination address to be a destination address with an SL PRS transmission requirement, thereby determining at least one destination address to be destination address 1, destination address 2, and destination address 3. If the first terminal device determines that the first side row authorization is a transmission resource of a shared resource pool, the first side row authorization can transmit both the SL PRS and the data corresponding to the MAC CE and the logical channel, thereby determining at least one destination address to be destination address 1, destination address 2, destination address 3, destination address 4, and destination address 5. If the first terminal device determines that the first side row authorization resource is a resource pool (discovery resource pool) for transmitting discovery messages and the discovery resource pool is not a shared resource pool, and the data corresponding to logical channel 1 is a discovery message, then at least one destination address is determined to be destination address 3. If the first terminal device determines that the first side authorized resource is a resource pool for transmitting discovery messages and the discovery resource pool is a shared resource pool, and the data corresponding to logical channel 1 is a discovery message, then at least one destination address is determined to be destination address 3 and destination address 1 and destination address 2 that include SL PRS transmission requirements. Wherein, when the discovery resource pool is not a shared resource pool, the transmission resources in the discovery resource pool are only used to transmit discovery messages; when the discovery resource pool is a shared resource pool, the transmission resources in the discovery resource pool can be used to transmit discovery messages and SL PRS.

[0190] For another example, the first side authorization has requirements for the priority of the information supported for transmission. Taking the 8-level SL PRS priority as an example, correspondingly, the priority value of SL PRS1 is 3, the priority value of SL PRS2 is 5, the priority value of SL PRS1 is 1, the priority values ​​of MAC CE1 and MAC CE2 are 1, logical channel 1 is SCCH and the priority value is 1, logical channel 2 is STCH and the priority value is 1, and logical channel 3 is STCH and the priority is 8. The priority of SL PRS in this embodiment can also refer to the above description, and is not limited here. If the first terminal device determines that the first side authorization is a transmission resource of the shared resource pool, and supports information with a priority higher than or equal to a certain threshold for transmission, such as the threshold is 3, then because the priority of the information that needs to be transmitted to the destination address 2 is lower than the threshold 3 (the priority value of the information that needs to be transmitted to the destination address 2 is greater than 3), it is determined that at least one destination address does not include the destination address 2, and at least one destination address is the destination address 1, the destination address 3, the destination address 4 and the destination address 5. If the first terminal device determines that the first sideline authorization is a transmission resource of a dedicated resource pool, and the priority of the supported transmission is higher than or equal to a certain threshold, such as the threshold is 3, then it is determined that the first authorized resource cannot transmit the data corresponding to the logical channel, MAC CE, and SL PRS with a priority lower than 3, and then at least one destination address is determined to be destination address 1 and destination address 3. The priority requirements for the SL PRS supported by the first authorized resource for transmission can also refer to the above description, and the priority of the SL PRS supported by the first authorized resource for transmission can also be lower than or equal to a certain threshold, or can be within a certain priority range, which is not limited here.

[0191] For another example, the first side authorization has requirements for the information parameters of the information supported for transmission. For example, the first side authorization has requirements for the required bandwidth of the SL PRS supported for transmission, the number of occupied time domain symbols, the accuracy of the positioning service, etc. The destination address corresponding to the transmission that does not meet the information parameter requirements cannot be determined as the destination address in at least one destination address. Among them, SL PRS1 requires 100MHz bandwidth to ensure positioning and ranging performance, SL PRS2 requires 40MHz bandwidth to ensure positioning and ranging performance, and SLPRS3 requires 40MHz bandwidth to ensure positioning and ranging performance. For example, the first terminal device determines that the first side authorization is a transmission resource of the shared resource pool, and the maximum bandwidth of the SL PRS supported for transmission is 40MHz. Although SLPRS1 that needs to be transmitted to destination address 1 does not meet the requirements, MAC CE1 that needs to be transmitted to destination address 1 meets the requirements, then at least one destination address is determined to be destination address 1, destination address 2, destination address 3, destination address 4, and destination address 5. For example, the first terminal device determines that the first sideline authorization is a transmission resource of a dedicated resource pool, and the maximum bandwidth of the SL PRS supported for transmission is 40 MHz, and then determines at least one destination address to be destination address 2 and destination address 3.

[0192] For another example, the first side authorization has requirements on the time of information transmission. For example, if the first side authorization is within the SL DRX inactive time of the terminal device corresponding to destination address 1 and destination address 2, it is determined that at least one destination address does not include destination address 1 and destination address 2, and thus at least one destination address is determined to be destination address 3, destination address 4, and destination address 5. In the embodiment of the present application, the terminal device corresponding to the destination address can be understood as the address of the terminal device being the destination address.

[0193] After determining at least one destination address, the first terminal device determines the first destination address associated with the first side authorization by using the destination address corresponding to the highest priority information among all the information that needs to be transmitted to the at least one destination address. The MAC CE, and / or logical channel data, and / or SL PRS that need to be transmitted to the at least one destination address need to meet the requirements of the information supported by the first side authorization for transmission.

[0194] Exemplarily, when the MAC layer of the first terminal device selects the destination address associated with the SL grant, the MAC layer should select a destination address associated with one of unicast, multicast and broadcast for the transmission corresponding to each sidelink control information (SCI); if the terminal device corresponding to the destination address applies SL DRX, the transmission time corresponding to the SLgrant needs to be within the activation time of the terminal device corresponding to the destination address. The destination address has at least one of the highest priority MAC CE, the highest priority logical channel and the highest priority SL PRS, wherein,

[0195] (1) The logical channel and MAC CE (if there is a MAC CE) meet all of the following conditions:

[0196] 1) SL data is available for transmission; and

[0197] 2) SBj>0, if there is any logical channel with SBj>0, where SBj is the token bucket information maintained by logical channel j; and

[0198] 3) When the SL grant is configured grant type 1, if the value of sl-configuredGrantType1Allowed is configured to be true; and

[0199] 4) If sl-AllowedCG-List is configured, the sl-AllowedCG-List includes a configured grant index associated with the SL grant; and

[0200] 5) If the physical sidelink feedback channel (PSFCH) is not configured for the SL grant associated with the SCI, the setting of sl-HARQ-FeedbackEnabled is disabled.

[0201] 6) The SL grant is not a dedicated resource pool resource or the SL grant is a shared resource pool resource;

[0202] (2) and, SL PRS meets the following conditions:

[0203] 1) SL PRS is requested to be transmitted; and

[0204] 2) If the priority of the SL PRS supported by the SL grant is configured, such as the threshold of the priority of the information supported by the SL grant for transmission, the SL PRS is required to meet the threshold requirement (please refer to the previous description for details); or, if a priority list of the SL PRS supported by the SL grant is configured, the priority list is required to include the priority of the SL PRS; or if other parameter requirements of the SL PRS supported by the SL grant are configured, such as the required bandwidth of the SL PRS, the number of occupied time domain symbols, the accuracy requirements of the positioning service, etc., the SL PRS is required to meet the corresponding parameter requirements.

[0205] The SL grant associated with the SCI may be a transmission opportunity in a shared resource pool or a transmission opportunity in a dedicated resource pool.

[0206] Exemplarily, when the MAC layer of the first terminal device selects the destination address associated with the SL grant, the MAC layer should, for each transmission corresponding to the SCI:

[0207] When a discovery resource pool is configured and the discovery resource pool is a shared resource pool, and the SL grant associated with the SCI is an SL grant in the discovery resource pool, select the destination address associated with the SL discovery message; if the terminal device corresponding to the destination address applies SL DRX, the transmission time corresponding to the SL grant needs to be within the activation time of the terminal device corresponding to the destination address; wherein,

[0208] (1) The logical channel meets all of the following conditions:

[0209] 1) There is a SL discovery message available for transmission; and

[0210] 2) SBj>0, if there is any logical channel with SBj>0, where SBj is the token bucket information maintained by logical channel j; and

[0211] 3) When the SL grant is configured grant type1, if the value of sl-configuredGrantType1Allowed is configured to be true; and

[0212] 4) If sl-AllowedCG-List is configured, the sl-AllowedCG-List includes the configured grant index associated with the SL grant; and

[0213] 5) If PSFCH is not configured for the SL grant associated with the SCI, the setting of sl-HARQ-FeedbackEnabled is disabled.

[0214] (2) and, SL PRS meets the following conditions:

[0215] 1) SL PRS is requested to be transmitted; and

[0216] 2) If the priority of the SL PRS supported by the SL grant is configured, such as the threshold of the priority of the information supported by the SL grant for transmission, the SL PRS is required to meet the threshold requirement (please refer to the previous description for details); or, if a priority list of the SL PRS supported by the SL grant is configured, the priority list is required to include the priority of the SL PRS; or, if other parameter requirements of the SL PRS supported by the SL grant are configured, such as the required bandwidth of the SL PRS, the number of occupied time domain symbols, the accuracy requirements of the positioning service, etc., the SL PRS is required to meet the corresponding parameter requirements.

[0217] When a discovery resource pool is configured and the discovery resource pool is not a shared resource pool, and when the SL grant associated with the SCI is an SL grant in the discovery resource pool, select the destination address associated with the SL discovery message; if the terminal device corresponding to the destination address applies SL DRX, the transmission time corresponding to the SL grant needs to be within the activation time of the terminal device corresponding to the destination address; wherein,

[0218] (1) The logical channel meets all of the following conditions:

[0219] 1) There is a SL discovery message available for transmission; and

[0220] 2) SBj>0, if there is any logical channel with SBj>0, where SBj is the token bucket information maintained by logical channel j; and

[0221] 3) When SL grant is configured as grant type 1, if the value of sl-configuredGrantType1Allowed is configured as true; and

[0222] 4) If sl-AllowedCG-List is configured, the sl-AllowedCG-List includes the configured grant index associated with the SL grant; and

[0223] 5) If PSFCH is not configured for the SL grant associated with the SCI, the setting of sl-HARQ-FeedbackEnabled is disabled.

[0224] Optionally, if logical channels that need to be transmitted to multiple destination addresses have the same priority, and / or SLPRS have the same priority, and / or MAC CE have the same priority, the first terminal device may randomly select one of the multiple destination addresses as the first destination address.

[0225] Optionally, after the first terminal device determines the first destination address associated with the first side row authorization, the first terminal device selects a logical channel, and / or MAC CE, and / or SL PRS for transmission to the first destination address. It can be understood that after the first terminal device determines the first destination address based on the priority of all information that needs to be transmitted to at least one destination address, it is also necessary to select information to be transmitted to the first destination address based on the priority of the information that needs to be transmitted to the first destination address and the size of the transmission resources authorized by the first side row. The selected logical channel, and / or MAC CE, and / or SL PRS are used for the subsequent allocation of the transmission resources authorized by the first side row.

[0226] Exemplarily, the first terminal device selects a logical channel and / or SL PRS that satisfies the following conditions, wherein:

[0227] (1) The logical channel meets the following conditions:

[0228] 1) SL data is available for transmission; and

[0229] 2) When SL grant is configured as grant type 1, if the value of sl-configuredGrantType1Allowed is configured as true; and

[0230] 3) If sl-AllowedCG-List is configured, the sl-AllowedCG-List includes the configured grant index associated with the SL grant; and

[0231] 4) If the value of sl-HARQ-FeedbackEnabled satisfies the following conditions:

[0232] i) if the SL grant associated with the SCI is configured with PSFCH and the first terminal device is capable of receiving PSFCH, sl-HARQ-FeedbackEnabled is set to enabled, if sl-HARQ-FeedbackEnabled of the highest priority logical channel that meets the above conditions is enabled, or

[0233] ii) if the SL grant associated with the SCI is configured with PSFCH and the first terminal device is capable of receiving PSFCH, sl-HARQ-FeedbackEnabled is set to disabled, if sl-HARQ-FeedbackEnabled of the highest priority logical channel that meets the above conditions is disabled, or

[0234] iii) If the SL grant associated with the SCI is not configured with PSFCH or the first terminal device does not have the capability to receive PSFCH, sl-HARQ-FeedbackEnabled is set to disabled.

[0235] (2) and, SL PRS meets the following conditions:

[0236] 1) the SL PRS with the highest priority among the SL PRSs requested for transmission; and

[0237] 2) If the priority of the SL PRS supported by the SL grant is configured, such as the threshold of the priority of the information supported by the SL grant for transmission, the SL PRS is required to meet the threshold requirement (please refer to the previous description for details); or, if a priority list of the SL PRS supported by the SL grant is configured, the priority list is required to include the priority of the SL PRS, or, if other parameter requirements of the SL PRS supported by the SL grant are configured, such as the required bandwidth of the SL PRS, the number of occupied time domain symbols, the accuracy requirements of the positioning service, etc., the SL PRS is required to meet the corresponding parameter requirements.

[0238] 320, the first terminal device transmits the first information and / or the data packet corresponding to the first information to the second terminal device on the first side line authorization, and the address of the second terminal device is the first destination address. Specifically, the physical layer of the first terminal device transmits the first information and / or the data packet corresponding to the first information to the second terminal device on the first side line authorization. The data packet corresponding to the first information can be understood as a MAC PDU composed of the data packets corresponding to the first information.

[0239] In the technical solution provided in the embodiment of the present application, the first terminal device can determine the first destination address associated with the first side row authorization from at least one destination address according to the priority of the SL PRS, MAC CE and / or logical channel, and the first destination address has the first information with the highest priority; the first terminal device transmits the first information and / or the data packet corresponding to the first information to the second terminal device corresponding to the first destination address on the first side row authorization. This technical solution can determine the first destination address associated with the first side row authorization, and the first destination address has the first information with the highest priority among at least one destination address, and can implement the priority transmission of the first information with the highest priority on the first side row authorization, thereby improving the reliability of information transmission.

[0240] In the case where the first information is a SL PRS, there are three implementation methods for the first terminal device to transmit the first information and / or a data packet corresponding to the first information to the second terminal device based on the first sideline authorization.

[0241] In one implementation, when the first information is SL PRS, the first terminal device transmits a data packet corresponding to the SL PRS and the third information to the second terminal device on the first side authorization, and the third information includes a data packet corresponding to the information other than the SL PRS in the first destination address. It can be understood that the third information includes a data packet corresponding to the information other than the SL PRS in the information that needs to be transmitted to the first destination address, and the information other than the SLPRS in the information that needs to be transmitted to the first destination address can be a MAC CE and / or a logical channel. The MAC layer of the first terminal device generates a data packet such as a MAC PDU according to the logical channels and / or MAC CEs that meet the requirements in the information to be transmitted to the first destination address. Optionally, the MAC PDU can be generated by the MAC layer of the first terminal device according to the transport block size (TBS) provided by the physical layer, or it can be generated by the MAC layer of the first terminal device according to the MAC PDU size inferred by the TBS. The MAC layer of the first terminal device assembles MAC PDU based on the logical channel prioritization (LCP) according to the acquired TBS and the priority order of the logical channel. The specific generation method can refer to Chapter 5.22.1.4.1.3 of TS38.321.

[0242] Optionally, the MAC layer of the first terminal device generates a MAC PDU based on the TBS provided by the physical layer.

[0243] Exemplarily, the MAC layer of the first terminal device selects a modulation and coding scheme (MCS) and the MAC layer determines to transmit the SL PRS on the first sideline authorization, and indicates the information of the MCS and SLPRS selected by the MAC layer to the physical layer; the physical layer calculates the TBS based on the MCS selected by the MAC layer and the information of the SL PRS and informs the MAC layer. Among them, the information of the SL PRS transmitted on the first sideline authorization may include one or more of the following: the MAC layer determines that the physical layer needs to transmit the SL PRS, or the number of time domain symbols occupied by the SL PRS, or the priority of the SL PRS. The information of the SL PRS informed by the MAC layer to the physical layer can be used by the physical layer to determine the TBS that can be carried by the first sideline authorization after removing the transmission resources occupied by the SL PRS based on the information of the SL PRS. For example, the physical layer determines that the SL PRS needs to be transmitted on the first sideline authorization based on the information of the MCS and SLPRS indicated by the MAC layer. The physical layer can determine the number of time domain symbols occupied by the SL PRS based on the congestion information of the resource pool where the first sideline authorization is located, and determine the TBS that can be carried by the first sideline authorization. For another example, the MAC layer informs the physical layer of the priority of the SL PRS that needs to be transmitted on the first side line authorization, and the physical layer can determine the number of time domain symbols occupied by the SL PRS based on the priority of the SL PRS, thereby determining the TBS that can also be carried by the first side line authorization. For another example, the MAC layer informs the physical layer of the number of time domain symbols occupied by the SL PRS that needs to be transmitted on the first side line authorization, and the physical layer can determine the TBS that can also be carried by the first side line authorization based on the number of time domain symbols occupied by the SL PRS indicated by the MAC layer. The MAC layer generates a MAC PDU of corresponding size according to the TBS.

[0244] Exemplarily, before the MAC layer of the first terminal device indicates the information of SL PRS to the physical layer, the physical layer provides the MAC layer with the TBS of the transmission resources occupied by SL PRS without removing it. The MAC layer of the first terminal device can instruct the physical layer to recalculate the TBS that can also be carried by the first sideline authorization based on the determined SL PRS information, and the calculation method refers to the previous possible method.

[0245] Optionally, the MAC layer of the first terminal device generates a MAC PDU based on the MAC PDU size inferred from the TBS. For example, before the MAC layer of the first terminal device indicates the information of the SL PRS to the physical layer, the physical layer provides the MAC layer with the TBS without removing the transmission resources occupied by the SL PRS; the MAC layer of the first terminal device can infer the size of the MAC PDU based on the TBS and the information of the SL PRS, and generate the MAC PDU.

[0246] In this implementation, the first side authorization is a side authorization of a shared resource pool; the information to be transmitted to the first destination address includes SL PRS and second information, or the first destination address has SL PRS and second information, and the second information is MAC CE and / or logical channel data.

[0247] Specifically, the MAC layer of the first terminal device assembles the data packets corresponding to the third information into a MAC PDU, and delivers the MAC PDU to the physical layer of the first terminal device, which transmits the MAC PDU and SL PRS to the second terminal device using the first sideline authorization.

[0248] In another implementation, when the first information is SL PRS, the first terminal device transmits SL PRS and data packets corresponding to the SL PRS to the second terminal device on the first sideline authorization, without transmitting MAC CE and data packets corresponding to the logical channel. In this implementation, the first sideline authorization is a sideline authorization of a shared resource pool; the information that needs to be transmitted to the first destination address only includes SL PRS, or the information that is transmitted to the first destination address and meets the transmission requirements only includes SL PRS, or the information that needs to be transmitted to the first destination address includes SL PRS and second information, but after considering removing the transmission resources occupied by SL PRS, the transmission resources of the first sideline authorization are not enough to transmit the data packets corresponding to MAC CE / logical channel in the second information.

[0249] Specifically, the MAC layer of the first terminal device assembles the data packets corresponding to the SL PRS into a MAC PDU, and delivers the MAC PDU to the physical layer of the first terminal device, which transmits the MAC PDU and SL PRS to the second terminal device using the first sideline authorization.

[0250] Optionally, the data packet corresponding to the SL PRS does not include MAC SDU and MAC CE, which can be understood as, the data packet corresponding to the SL PRS does not include the data packet and MAC CE corresponding to the logical channel; or, the data packet corresponding to the SL PRS includes a MAC PDU subheader; or, the data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, the data packet corresponding to the SL PRS includes a MAC CE associated with the SL PRS. Specifically, the data packet corresponding to the SL PRS does not include MAC SDU and MAC CE, which can be understood as, the data packet corresponding to the SL PRS does not include the data packet and MAC CE corresponding to the logical channel; or, the data packet corresponding to the SL PRS includes only a MAC PDU subheader; or, the data packet corresponding to the SL PRS includes only a MAC PDU subheader and padding bits; or, the data packet corresponding to the SL PRS includes only a MAC CE associated with the SL PRS.

[0251] The current MAC layer needs to include the data / MAC SDU corresponding to the logical channel to be transmitted, or needs to include MAC CE when assembling MAC PDU. The MAC layer also has restrictions on the generation of MAC PDU. For example, if the MAC PDU includes 0 MAC service data units (SDU), and the MAC layer does not generate a MAC CE for the SL-SCH transmission, there is no data to be transmitted in the MAC PDU, and the MAC PDU will not be generated. In an embodiment of the present application, due to the transmission of SL PRS, and when transmitting SL PRS in a shared resource pool, it is necessary to include address information in the MAC PDU subheader to indicate the first destination address, so that the second terminal device can determine that the SL PRS is information transmitted to itself.

[0252] In order to enable the MAC layer to generate a MAC PDU, illustratively, for the case where only the SL PRS is transmitted, a MAC CE associated with the SLPRS can be generated, and the MAC CE associated with the SL PRS can be transmitted together with the SL PRS. In this case, the conditions that restrict the MAC layer from generating a MAC PDU include:

[0253] (1) No sidelink CSI reporting MAC CE is generated for this PSSCH transmission; and

[0254] (2) no Sidelink DRX Command MAC CE is generated for this PSSCH transmission; and

[0255] (3) no sidelink inter-terminal device coordination request MAC CE is generated for this PSSCH transmission; and

[0256] (4) no sidelink inter-terminal coordination information MAC CE is generated for this PSSCH transmission; and

[0257] (5) No SL PRS-associated MAC CE is generated for this sidelink grant or this PSSCH transmission; and

[0258] (6) MAC PDU includes zero MAC SDU, where PSSCH is the physical layer channel corresponding to SL-SCH.

[0259] Exemplarily, for the case where only the SL PRS is transmitted, a MAC PDU including only a MAC PDU subheader, or a MAC PDU subheader plus padding bits may be generated, and the SL PRS may be transmitted together with a MAC PDU including the MAC PDU subheader, or the MAC PDU subheader plus padding bits. In this case, the conditions that restrict the MAC layer from generating a MAC PDU include:

[0260] (1) No sidelink CSI reporting MAC CE is generated for this PSSCH transmission; and

[0261] (2) no Sidelink DRX Command MAC CE is generated for this PSSCH transmission; and

[0262] (3) no sidelink inter-terminal device coordination request MAC CE is generated for this PSSCH transmission; and

[0263] (4) no sidelink terminal device coordination information MAC CE is generated for this PSSCH transmission; and

[0264] (5) The MAC PDU includes zero MAC SDU and the MAC PDU is not associated with SL PRS.

[0265] In another implementation, when the first information is SL PRS, the first terminal device transmits SL PRS to the second terminal device on the first sideline authorization. In this example, the first sideline authorization is a sideline authorization of a dedicated resource pool, and the sideline authorization of the dedicated resource pool is only used to transmit SL PRS; the information that needs to be transmitted to the first destination address includes SLPRS, or the first destination address has SL PRS, or the information transmitted to the first destination address that meets the transmission requirements of the first sideline authorization includes SL PRS. Specifically, the physical layer of the first terminal device uses the first sideline authorization to transmit the SL PRS to the second terminal device.

[0266] Optionally, before the first terminal device transmits the first information and / or the data packet corresponding to the first information to the second terminal device, when the first destination address has an SL PRS and the first information is not an SL PRS, the first terminal device determines whether to transmit the SL PRS on the first side line authorization. Specifically, the MAC layer of the first terminal device determines whether to transmit the SL PRS on the first side line authorization. Wherein, the first destination address has an SL PRS, which can be understood as that the information to be transmitted to the first destination address includes the SL PRS, or that the information transmitted to the first destination address that meets the transmission requirements of the first side line authorization includes the SL PRS. When the first destination address has an SL PRS and the first information is not an SL PRS, the priority of the first information is higher than the priority of the SL PRS, and the first information is a MAC CE or a logical channel.

[0267] In one implementation, when the first destination address has a SL PRS and the first information is not a SL PRS, it is determined to transmit the SL PRS on the first sideline grant. In this implementation, if the first destination address has a requirement to transmit the SL PRS, the MAC layer of the first terminal device determines to transmit the SL PRS on the first sideline grant.

[0268] Exemplarily, when the first destination address has an SL PRS and the first information is not an SL PRS, the MAC layer of the first terminal device tells the physical layer of the first terminal device that the SL PRS needs to be transmitted. The MAC layer determines the number of time domain symbols occupied by the SL PRS according to the priority of the SL PRS, which is used for the physical layer to determine the TBS that can be carried by the first side line authorization after considering the removal of the transmission resources occupied by the SL PRS; or, the physical layer of the first terminal device determines the number of symbols occupied by the SL PRS, and determines the TBS that can be carried by the first side line authorization after considering the removal of the transmission resources occupied by the SL PRS. The MAC layer selects a logical channel and / or MAC CE that meets the transmission requirements according to the TBS determined by the physical layer, which is used for preparing for the assembly of the MAC PDU. Among them, the logical channel and / or MAC CE that meets the transmission requirements include the first information. Optionally, when the size of the transmission resources occupied by the first information and the SLPRS is less than the size of the transmission resources authorized by the first side line, and the first destination address also has other information in addition to the first information and the SL PRS, the logical channel and / or MAC CE that meets the transmission requirements may also include other information. For more information, please refer to the method of generating a data packet when the first information is SL PRS.

[0269] In another implementation, when the first destination address has a SL PRS and the first information is not a SL PRS, it is determined not to transmit the SL PRS on the first side row authorization. Specifically, if the priority of the first information is higher than or equal to the priority of the SLPRS, the MAC layer of the first terminal device determines not to transmit the SL PRS on the first side row authorization; or, if the priority of the SLPRS is higher than or equal to the priority of the first information, the MAC layer of the first terminal device determines not to transmit the SL PRS on the first side row authorization. In this implementation, since the priority of the first information is higher than the priority of the SL PRS, the MAC layer of the first terminal device determines not to transmit the SL PRS on the first side row authorization. For more information, please refer to the method of generating a data packet when the first information is a SL PRS.

[0270] In another implementation, when the first destination address has an SL PRS and the first information is not an SL PRS, it is determined whether to transmit the SL PRS on the first side row authorization based on the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS, the size of the transmission resources occupied by the SLPRS, and the size of the transmission resources authorized by the first side row.

[0271] Exemplarily, if the sum of the size of the transmission resources occupied by the information with a higher priority than the priority of SL PRS in the first destination address and the size of the transmission resources occupied by SL PRS is less than or equal to the size of the transmission resources authorized by the first side line, it is determined to transmit SL PRS on the first side line authorization; or, if the sum of the size of the transmission resources occupied by the information with a higher priority than the priority of SL PRS in the first destination address and the size of the transmission resources occupied by SL PRS is greater than or equal to the size of the transmission resources authorized by the first side line, it is determined not to transmit SL PRS on the first side line authorization. Among them, the information with a higher priority than the priority of SL PRS in the first destination address can be understood as the information that needs to be transmitted to the first destination address and has a higher priority than the priority of SL PRS. For example, the physical layer can provide the transmission block size (denoted as TBS1) that can be supported when the first side line authorized transmission resource does not transmit SL PRS and the transmission block size (denoted as TBS2) when transmitting SL PRS. If the information packet size with a priority higher than SL PRS in the first destination address is greater than or equal to TBS1, it is determined that SL PRS is not transmitted on the first side line authorization; if the information packet size with a priority higher than SL PRS in the first destination address is greater than or equal to TBS2, it is determined that SL PRS is transmitted on the first side line authorization.

[0272] Optionally, when the first destination address has an SL PRS, the first information is not an SL PRS, and it is determined to transmit the SL PRS on the first side line authorization, the data packet and the SL PRS corresponding to the first information are transmitted to the second terminal device on the first side line authorization. Specifically, the MAC layer of the first terminal device composes a MAC PDU from the data packet corresponding to the first information, and delivers the MAC PDU to the physical layer of the first terminal device, which transmits the MAC PDU and the SL PRS to the second terminal device using the first side line authorization. Exemplarily, when the size of the transmission resources occupied by the first information and the SL PRS is smaller than the size of the transmission resources authorized by the first side line, and the first destination address also has other information in addition to the first information and the SL PRS, other information that meets the transmission requirements may also be transmitted to the second terminal device on the first side line authorization. For more information, please refer to the method of generating data packets when the first information is an SL PRS.

[0273] Optionally, when the first destination address has an SL PRS, the first information is not an SL PRS, and it is determined not to transmit the SL PRS on the first side line authorization, a data packet corresponding to the first information is transmitted to the second terminal device on the first side line authorization. Specifically, the MAC layer of the first terminal device composes a MAC PDU from the data packet corresponding to the first information, and delivers the MAC PDU to the physical layer of the first terminal device, which transmits the MAC PDU to the second terminal device using the first side line authorization. Exemplarily, when the size of the transmission resources occupied by the first information is smaller than the size of the transmission resources authorized by the first side line, and the first destination address also has other information in addition to the first information and the SL PRS, other information that meets the transmission requirements may also be transmitted to the second terminal device on the first side line authorization. For more information, please refer to the method of generating data packets when the first information is an SL PRS.

[0274] In another implementation, when the first information is not SL PRS and the first destination address does not have SL PRS, the first terminal device determines that the first side line authorization does not transmit SL PRS. The MAC layer selects the MCS associated with the first side line authorization and indicates it to the physical layer. The physical layer calculates the TBS based on the MCS selected by the MAC layer and informs the MAC layer. The MAC layer selects the logical channel based on the logical channel prioritization (LCP). The MAC layer assembles the MAC PDU according to the obtained TBS and the priority order of the logical channels. The specific generation method can refer to Chapter 5.22.1.4.1.3 of TS38.321. Figure 4The present invention is a schematic flow chart of MAC PDU grouping based on the priority of logical channels.

[0275] Based on the above technical solution, the first terminal device can determine the first destination address associated with the first side row authorization according to the priority of the SL PRS, MAC CE and / or the logical channel, and determine whether to transmit the SL PRS on the first side row authorization and whether to transmit the data packet on the first side row authorization according to the information to be transmitted to the first destination address as needed, thereby determining the transmission method of the information on the first side row authorization.

[0276] The following describes the information transmission method provided by the embodiment of the present application with reference to specific examples.

[0277] Figure 5 A schematic flow chart of an example of a method for information transmission provided in an embodiment of the present application.

[0278] 510. The first terminal device obtains a first sideline authorization. Specifically, the MAC layer of the first terminal device obtains the first sideline authorization.

[0279] In one implementation, the network device sends a DCI to the first terminal apparatus, where the DCI indicates a first sideline authorization, as shown in step 511; correspondingly, the first terminal apparatus receives the DCI from the network device and determines the first sideline authorization.

[0280] In another implementation, the network device sends an RRC message or a system message to the first terminal device, and the RRC message or the system message carries configuration information, and the configuration information indicates a first side row authorization, such as step 511; correspondingly, the first terminal device receives the RRC message or the system message from the network device, and determines the first side row authorization according to the configuration information. For example, the configuration information includes resource pool information for side row transmission, and the first terminal device determines the side row transmission resource pool according to the received resource pool information, and determines the first side row authorization through resource selection. For another example, the configuration information may also include periodic information of the first side row authorization, which is used to indicate that the side row transmission resources indicated by the first side row authorization appear periodically, and the first terminal device determines the first side row authorization according to the periodic information of the received first side row authorization. Optionally, the first side row authorization received by the first terminal device is in an inactive state, and can only be used after receiving an activation command sent by the network device.

[0281] In another implementation manner, the first terminal device obtains the first sidewalk authorization from a preconfigured resource pool.

[0282] In another implementation, the first terminal device sends a resource request message to the network device, where the resource request message is used to request a sideline authorization that can be used to transmit the SL PRS, and the resource request message can be a MAC CE or an RRC message, as in step 512; the network device receives the resource request message from the first terminal device, and sends a DCI to the first terminal device, where the DCI is used to indicate a first sideline authorization, as in step 513; the first terminal device receives the DCI from the network device, and determines the first sideline authorization based on the DCI.

[0283] In another implementation, the first terminal device sends a resource request message to the network device, where the resource request message is used to request activation or deactivation of the sideline authorization that has been configured for transmitting SL PRS, and the resource request message can be a MAC CE or an RRC message, as in step 512; the network device receives the resource request message from the first terminal device, and sends a DCI to the first terminal device, where the DCI is used to indicate activation of the first sideline authorization or deactivation of the first sideline authorization, as in step 513; the first terminal device receives the DCI from the network device, and determines the first sideline authorization based on the DCI.

[0284] In another implementation, the first terminal device sends an RRC message to the network device, where the RRC message is used to request a sideline authorization that can be used to transmit the SL PRS. For example, the RRC message may be UE auxiliary information, such as step 512; the network device receives the RRC message from the first terminal device, and sends an RRC reconfiguration message to the first terminal device, where the fifth information carried in the RRC reconfiguration message is used to indicate the first sideline authorization, such as step 513; the first terminal device receives the RRC reconfiguration message from the network device, and determines the first sideline authorization based on the fifth information carried in the RRC reconfiguration message.

[0285] Step 511 is an optional step, which is usually applicable to mode 1 or scheme 1 based on network scheduling. Step 513 is an optional step, which is usually applicable to mode 2 or scheme 2 based on terminal device resource selection. Step 512 is an optional step, which may occur before step 511 or step 513. There is no restriction on the order of step 511 and step 513, wherein step 511 and step 513 may occur simultaneously, or step 511 may occur before step 513, or step 513 may occur before step 511. There is no restriction on the order of step 511, step 512, step 513 and step 510, and if step 511, step 512 and step 513 exist, they may occur before step 510, after step 510, or simultaneously with step 510.

[0286] For more implementation methods, please refer to Figure 3 The implementation method of the first terminal device obtaining the first sideline authorization in the embodiment.

[0287] 520. The MAC layer of the first terminal device selects a first destination address associated with the first side row authorization from at least one destination address, the first destination address having first information with the highest priority among the at least one destination address, one of the at least one destination address having an SL PRS, or one of the at least one destination address having an SL PRS and second information, the second information including one or more of a MAC CE and a logical channel. Exemplarily, the first terminal device needs to transmit an SL PRS according to the first side row authorization obtained in step 510, and determines that the at least one destination address has an SL PRS; the destination addresses among the at least one destination address may also have a MAC CE and / or a logical channel, which is not limited here.

[0288] 530, the MAC layer of the first terminal device determines whether to transmit SL PRS on the first side line authorization. In the case where the first information is SL PRS, the first terminal device transmits SL PRS on the first side line authorization. In the case where the first destination address has SLPRS and the first information is not SL PRS, the first terminal device determines whether to transmit SLPRS on the first side line authorization. For specific implementation methods, please refer to Figure 4 Step 420 in the embodiment is not described in detail here.

[0289] 540, the MAC layer of the first terminal device generates a MAC PDU according to the information determined to be transmitted on the first sideline authorization. Step 540 is an optional step. For example, when the first sideline authorization is a dedicated resource pool, no MAC PDU is generated.

[0290] 550. The MAC layer of the first terminal device delivers the composed MAC PDU to the physical layer of the first terminal device, and the physical layer of the first terminal device transmits the MAC PDU and / or SLPRS to the second terminal device on the first side line authorization; for example, the physical layer of the first terminal device transmits SL PRS to the second terminal device on the first side line authorization.

[0291] When the terminal device is performing sidelink transmission, since the sidelink authorization is the resource selected by the terminal device in the resource pool, the network device cannot know the transmission time of the terminal device on the sidelink. At the same time, the terminal device may also be scheduled for uplink transmission by the network device. Since some terminal devices do not have the ability to transmit on both the uplink and the sidelink at the same time, when there is uplink transmission and sidelink SL PRS transmission at the same time, how to resolve the current transmission conflict is a problem that needs to be solved.

[0292] Figure 6 A schematic flow chart of another example of a method for information transmission provided in an embodiment of the present application. In this example, when there are both uplink transmission and sidelink SL PRS transmission, it is possible to determine whether the transmission on the first sidelink authorization takes precedence over the transmission on the first uplink authorization based on the priority of the SLPRS in the first destination address, thereby resolving the conflict between the uplink transmission and the sidelink SL PRS transmission.

[0293] 601. The network device sends configuration information to the first terminal apparatus, where the configuration information is used to configure a first SL priority threshold; correspondingly, the first terminal apparatus receives the configuration information from the network device.

[0294] 602, the first terminal device obtains a first sideline authorization, where the first sideline authorization is used to transmit an SL PRS to a first destination address. For specific methods, please refer to Figure 3 A method for obtaining first sideline authorization in an embodiment.

[0295] 603, the network device sends a first uplink authorization to the first terminal device; correspondingly, the first terminal device receives the first uplink authorization from the network device. Optionally, the first terminal device does not have the ability to use the first uplink authorization and the first sideline authorization at the same time. Optionally, the first uplink authorization and the first sideline authorization are sent at the same or similar time.

[0296] 604, the first terminal device determines whether the transmission on the first sidelink grant has priority over the transmission on the first uplink grant based on the priority of the SL PRS. The method for determining the transmission of the SL PRS on the first sidelink grant may refer to the above Figure 3 Example or Figure 5 Description of embodiments.

[0297] Specifically, the first terminal device determines whether transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization based on a comparison result of the priority of the SL PRS and the first SL priority threshold. Exemplarily, when the priority of the SL PRS transmitted on the first sideline authorization is higher than or equal to the first SL priority threshold, it is determined that transmission on the first sideline authorization takes precedence over transmission on the first uplink authorization. Exemplarily, if the priority of the SL PRS in the first destination address is lower than or equal to the first SL priority threshold, it is determined that transmission on the first uplink authorization takes precedence over transmission on the first sideline authorization, or it is determined that transmission on the first sideline authorization does not take precedence over transmission on the first uplink authorization.

[0298] The above introduces the information transmission method provided by the embodiment of the present application, and the execution subject used to execute the above information transmission method will be introduced below.

[0299] Figure 7 Schematic block diagram of a communication device 700 according to an embodiment of the present application. The device can be applied to or deployed in Figure 3 In the first terminal device in the method embodiment, the communication device 700 includes:

[0300] The processing unit 710 is configured to select a first destination address associated with a first sidelink authorization from at least one destination address, the first destination address having first information with the highest priority among the at least one destination address, one of the at least one destination address having a sidelink positioning reference signal SL PRS, or one of the at least one destination address having the SL PRS and second information, the second information including one or more of a media access control element MAC CE and a logical channel;

[0301] The transceiver unit 720 is used to transmit the first information and / or a data packet corresponding to the first information to a second terminal device on the first side line authorization, and the address of the second terminal device is the first destination address. The transceiver unit in the embodiment of the present application includes a receiving unit and a sending unit, and the receiving unit and the sending unit can belong to the same module or different modules.

[0302] Optionally, the processing unit 710 is further configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine whether to transmit the SL PRS on the first sideline grant.

[0303] Optionally, the processing unit 710 is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine to transmit the SL PRS on the first sideline grant.

[0304] Optionally, the processing unit 710 is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine not to transmit the SL PRS on the first sideline grant.

[0305] Optionally, the processing unit 710 is specifically used to determine whether to transmit the SL PRS on the first side row authorization based on the size of transmission resources occupied by information in the first destination address whose priority is higher than that of the SL PRS, the size of transmission resources occupied by the SL PRS, and the size of transmission resources of the first side row authorization when the first destination address has the SL PRS and the first information is not the SL PRS.

[0306] Optionally, the processing unit 710 is specifically configured to:

[0307] If the sum of the size of the transmission resources occupied by the information with a priority higher than the priority of the SL PRS in the first destination address and the size of the transmission resources occupied by the SL PRS is less than or equal to the size of the transmission resources of the first side row authorization, it is determined to transmit the SL PRS on the first side row authorization; or,

[0308] If the sum of the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS and the size of the transmission resources occupied by the SL PRS is greater than the size of the transmission resources authorized by the first side row, it is determined not to transmit the SL PRS on the first side row authorization.

[0309] Optionally, the transceiver unit 720 is specifically used for:

[0310] When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information and the SL PRS to the second terminal device on the first sideline grant; or

[0311] When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined not to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information to the second terminal device on the first sideline grant; or

[0312] In the case where the first information is the SL PRS, transmitting a data packet corresponding to the SL PRS and third information to the second terminal device on the first sideline authorization, wherein the third information includes part or all of the information in the first destination address except the SL PRS; or

[0313] In the case where the first information is the SL PRS, transmitting the SL PRS and a data packet corresponding to the SL PRS to the second terminal device on the first sideline authorization; or,

[0314] In a case where the first information is the SL PRS, the SL PRS is transmitted to the second terminal device in the first sideline grant.

[0315] Optionally, the data packet corresponding to the SL PRS does not include a MAC service data unit SDU and a MAC CE; or, the data packet corresponding to the SL PRS includes a MAC protocol data unit PDU subheader; or, the data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, the data packet corresponding to the SL PRS includes a MAC CE associated with the SL PRS.

[0316] Optionally, the transceiver unit 720 is further used to obtain the first sideline authorization.

[0317] Optionally, the transceiver unit 720 is specifically used to receive configuration information from a network device, where the configuration information indicates the first side authorization.

[0318] Optionally, the configuration information includes one or more of the following:

[0319] The priority information of the information supported for transmission by the first side line authorization;

[0320] Priority information of the SL PRS supported by the first side line authorization transmission;

[0321] The first sideline grant supports the required bandwidth information of the SL PRS transmitted; or,

[0322] The first sideline grant supports information on the number of time domain symbols occupied by the SL PRS transmitted.

[0323] Optionally, the transceiver unit 720 is specifically used for:

[0324] Sending fourth information to the network device, where the fourth information is used to request a sideline authorization that can be used to transmit the SL PRS;

[0325] Fifth information is received from the network device, where the fifth information is used to indicate the first sideline authorization.

[0326] Optionally, the fifth information includes one or more of the following:

[0327] The priority information of the information supported for transmission by the first side line authorization;

[0328] Priority information of the SL PRS supported by the first side line authorization transmission;

[0329] The first sideline grant supports the transmission of SL PRS required bandwidth information;

[0330] The first sideline grant supports information on the number of time domain symbols occupied by the SL PRS transmitted; or,

[0331] The first side row authorizes experience requirement information of the positioning service supported.

[0332] Figure 8 8 is a schematic block diagram of another communication device 800 according to an embodiment of the present application. The communication device 800 includes: at least one processor 810, a memory 820, and a communication interface 830, wherein the at least one processor is connected to the memory 820;

[0333] The memory 820 is used to store computer programs or executable instructions;

[0334] The processor 810 is coupled to the memory 820 via the communication interface 830, and the processor 810 is used to call and run the computer program or executable instructions in the memory 820 to implement the method in the embodiment of the present application. The communication device can be applied to the first terminal device or network device in the embodiment of the present application. Optionally, the processor 810 and the memory 820 are integrated together.

[0335] The processor 810 described above may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in a decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0336] Optionally, an embodiment of the present application also provides a communication device, which includes an input and output interface and a logic circuit, wherein the input and output interface is used to obtain input information and / or output information; the logic circuit is used to execute the method in the above method embodiment, and process and / or generate output information based on the input information.

[0337] An embodiment of the present application also provides a communication system, including a first terminal device in the information transmission method provided in an embodiment of the present application, and other communication equipment communicating with the first terminal device, a network equipment, and other communication equipment communicating with the network equipment.

[0338] The present application also provides a computer-readable storage medium on which computer codes or instructions for implementing the method in the above method embodiment are stored. When the computer codes or instructions are executed by a processor, the computer can implement the method in the above method embodiment.

[0339] The embodiment of the present application further provides a computer program product, which includes computer codes or instructions. When the computer codes or instructions are executed, the method in the above method embodiment is implemented.

[0340] An embodiment of the present application also provides a chip, including a processor, wherein the processor is connected to a memory, the memory is used to store computer code or instructions, and the processor is used to execute the computer code or instructions stored in the memory, so that the chip executes the method in the above method embodiment.

[0341] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0342] It should be understood that in the embodiments of the present application, the numbers "first", "second"... are only for distinguishing different objects, such as distinguishing different terminal devices or different information, and do not constitute a limitation on the scope of the embodiments of the present application. The embodiments of the present application are not limited to this.

[0343] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship; the term "at least one" in this application can mean "one" and "two or more". For example, A, B and C can represent seven situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, C and B exist at the same time, and A, B and C exist at the same time.

[0344] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0345] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0346] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0347] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0348] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0349] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0350] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for information transmission, characterized in that: Applied to a first terminal device, comprising: Selecting a first destination address associated with a first sidelink grant from at least one destination address, the first destination address having first information with the highest priority among the at least one destination address, one of the at least one destination address having a sidelink positioning reference signal SL PRS, or one of the at least one destination address having the SL PRS and second information, the second information including one or more of a media access control element MAC CE and a logical channel; Based on the first side authorization, the first information and / or a data packet corresponding to the first information is transmitted to a second terminal device, and the address of the second terminal device is the first destination address.

2. The method according to claim 1, characterized in that: The method further comprises: In a case where the first destination address has the SL PRS and the first information is not the SL PRS, it is determined whether to transmit the SL PRS on the first sideline grant.

3. The method according to claim 2, characterized in that The determining whether to transmit the SL PRS on the first sideline grant when the first destination address has the SLPRS and the first information is not the SL PRS includes: In a case where the first destination address has the SL PRS and the first information is not the SL PRS, it is determined to transmit the SL PRS on the first sideline grant.

4. The method according to claim 2, characterized in that: The determining whether to transmit the SL PRS on the first sideline grant when the first destination address has the SLPRS and the first information is not the SL PRS includes: In a case where the first destination address has the SL PRS and the first information is not the SL PRS, it is determined not to transmit the SL PRS on the first sideline grant.

5. The method according to claim 2, characterized in that: The determining whether to transmit the SL PRS on the first sideline grant when the first destination address has the SLPRS and the first information is not the SL PRS includes: When the first destination address has the SL PRS and the first information is not the SL PRS, determine whether to transmit the SL PRS on the first side row authorization based on the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS, the size of the transmission resources occupied by the SL PRS, and the size of the transmission resources of the first side row authorization.

6. The method according to claim 5, characterized in that If the sum of the size of the transmission resources occupied by the information with a priority higher than the priority of the SL PRS in the first destination address and the size of the transmission resources occupied by the SL PRS is less than or equal to the size of the transmission resources of the first side row authorization, it is determined to transmit the SL PRS on the first side row authorization; or, If the sum of the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS and the size of the transmission resources occupied by the SL PRS is greater than the size of the transmission resources authorized by the first side row, it is determined not to transmit the SL PRS on the first side row authorization.

7. The method according to any one of claims 1 to 6, characterized in that Transmitting the first information and / or a data packet corresponding to the first information to the second terminal device based on the first side authorization includes: When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information and the SL PRS to the second terminal device on the first sideline grant; or When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined not to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information to the second terminal device on the first sideline grant; or In the case where the first information is the SL PRS, transmitting a data packet corresponding to the SL PRS and third information to the second terminal device on the first sideline authorization, wherein the third information includes part or all of the information in the first destination address except the SL PRS; or In the case where the first information is the SL PRS, transmitting the SL PRS and a data packet corresponding to the SL PRS to the second terminal device on the first sideline authorization; or, In a case where the first information is the SL PRS, the SL PRS is transmitted to the second terminal device in the first sideline grant.

8. The method according to claim 7, characterized in that The data packet corresponding to the SL PRS does not include a MAC service data unit SDU and a MAC CE; or, The data packet corresponding to the SL PRS includes a MAC protocol data unit PDU subheader; or, The data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, The data packet corresponding to the SL PRS includes the MAC CE associated with the SL PRS.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: Obtain the first side authorization.

10. The method according to claim 9, characterized in that The obtaining of the first sidewalk authorization includes: Configuration information is received from a network device, where the configuration information indicates authorization of the first side.

11. The method according to claim 10, characterized in that The configuration information includes one or more of the following: The priority information of the information supported for transmission by the first side line authorization; Priority information of the SL PRS supported by the first side line authorization transmission; The first sideline grant supports the transmission of SL PRS required bandwidth information; The first side authorized period information; or, The first sideline grant supports information on the number of time domain symbols occupied by the SL PRS transmitted.

12. The method according to claim 9, characterized in that The obtaining of the first sidewalk authorization includes: Sending fourth information to the network device, where the fourth information is used to request a sideline authorization that can be used to transmit the SL PRS; Receive fifth information from the network device, where the fifth information is used to indicate the first sideline authorization.

13. The method according to claim 12, characterized in that The fourth information or the fifth information includes one or more of the following: The priority information of the information supported for transmission by the first side line authorization; Priority information of the SL PRS supported by the first side line authorization transmission; The first sideline grant supports the transmission of SL PRS required bandwidth information; Information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first sideline grant; Index information corresponding to the first side row authorization; The index information of the resource pool where the first side authorization is located; or, The first side row authorizes experience requirement information of the positioning service supported.

14. A communication device, characterized in that: include: a processing unit, configured to select a first destination address associated with a first sidelink authorization from at least one destination address, the first destination address having first information with the highest priority among the at least one destination address, one of the at least one destination address having a sidelink positioning reference signal SL PRS, or one of the at least one destination address having the SL PRS and second information, the second information comprising one or more of a media access control element MAC CE and a logical channel; The transceiver unit is used to transmit the first information and / or a data packet corresponding to the first information to a second terminal device based on the first side authorization, and the address of the second terminal device is the first destination address.

15. The device according to claim 14, characterized in that The processing unit is further configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine whether to transmit the SL PRS on the first sideline grant.

16. The device according to claim 15, characterized in that The processing unit is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine to transmit the SL PRS on the first sideline grant.

17. The device according to claim 15, characterized in that The processing unit is specifically configured to, when the first destination address has the SL PRS and the first information is not the SL PRS, determine not to transmit the SL PRS on the first sideline grant.

18. The device according to claim 15, characterized in that The processing unit is specifically used to determine whether to transmit the SL PRS on the first side row authorization based on the size of transmission resources occupied by information in the first destination address whose priority is higher than that of the SL PRS, the size of transmission resources occupied by the SL PRS, and the size of transmission resources authorized by the first side row, when the first destination address has the SL PRS and the first information is not the SL PRS.

19. The device according to claim 18, characterized in that The processing unit is specifically used for: If the sum of the size of the transmission resources occupied by the information with a priority higher than the priority of the SL PRS in the first destination address and the size of the transmission resources occupied by the SL PRS is less than or equal to the size of the transmission resources of the first side row authorization, it is determined to transmit the SL PRS on the first side row authorization; or, If the sum of the size of the transmission resources occupied by the information in the first destination address whose priority is higher than the priority of the SL PRS and the size of the transmission resources occupied by the SL PRS is greater than the size of the transmission resources authorized by the first side row, it is determined not to transmit the SL PRS on the first side row authorization.

20. The device according to any one of claims 14 to 19, characterized in that The transceiver unit is specifically used for: When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information and the SL PRS to the second terminal device on the first sideline grant; or When the first destination address has the SL PRS, the first information is not the SL PRS, and it is determined not to transmit the SL PRS on the first sideline grant, transmitting the data packet corresponding to the first information to the second terminal device on the first sideline grant; or In the case where the first information is the SL PRS, transmitting a data packet corresponding to the SL PRS and third information to the second terminal device on the first sideline authorization, wherein the third information includes part or all of the information in the first destination address except the SL PRS; or In the case where the first information is the SL PRS, transmitting the SL PRS and a data packet corresponding to the SL PRS to the second terminal device on the first sideline authorization; or, In a case where the first information is the SL PRS, the SL PRS is transmitted to the second terminal device in the first sideline grant.

21. The device according to claim 20, characterized in that The data packet corresponding to the SL PRS does not include a MAC service data unit SDU and a MAC CE; or, The data packet corresponding to the SL PRS includes a MAC protocol data unit PDU subheader; or, The data packet corresponding to the SL PRS includes a MAC PDU subheader and padding bits; or, The data packet corresponding to the SL PRS includes the MAC CE associated with the SL PRS.

22. The device according to any one of claims 14 to 21, characterized in that The transceiver unit is further used to obtain the first sidewalk authorization.

23. The device according to claim 22, characterized in that The transceiver unit is specifically configured to receive configuration information from a network device, where the configuration information indicates authorization of the first side.

24. The device according to claim 23, characterized in that The configuration information includes one or more of the following: The priority information of the information supported for transmission by the first side line authorization; Priority information of the SL PRS supported by the first side line authorization transmission; The first sideline grant supports the transmission of SL PRS required bandwidth information; The first side authorized period information; or, The first sideline grant supports information on the number of time domain symbols occupied by the SL PRS transmitted.

25. The device according to claim 22, characterized in that The transceiver unit is specifically used for: Sending fourth information to the network device, where the fourth information is used to request a sideline authorization that can be used to transmit the SL PRS; Receive fifth information from the network device, where the fifth information is used to indicate the first sideline authorization.

26. The device according to claim 25, characterized in that The fourth information or the fifth information includes one or more of the following: The priority information of the information supported for transmission by the first side line authorization; Priority information of the SL PRS supported by the first side line authorization transmission; The first sideline grant supports the transmission of SL PRS required bandwidth information; Information on the number of time domain symbols occupied by the SL PRS supported for transmission by the first sideline grant; Index information corresponding to the first side line authorization; The index information of the resource pool where the first side authorization is located; or, The first side row authorizes experience requirement information of the positioning service supported.

27. A communication device, characterized in that: include: At least one processor, the at least one processor is connected to a memory, the memory is used to store a computer program, and the at least one processor is used to execute the computer program stored in the memory, so that the communication device performs the method according to any one of claims 1 to 13.

28. A computer-readable storage medium, characterized in that: include: The computer readable medium stores computer codes or instructions; When the computer code or instruction is executed by a processor, the method of any one of claims 1 to 13 is performed.

29. A computer program product, characterized in that The method comprises computer codes or instructions, which, when executed, enable the method according to any one of claims 1 to 13 to be implemented.

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