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WO2023061346A1 - 侧链路通信方法、终端及网络侧设备 - Google Patents

侧链路通信方法、终端及网络侧设备 Download PDF

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Publication number
WO2023061346A1
WO2023061346A1 PCT/CN2022/124473 CN2022124473W WO2023061346A1 WO 2023061346 A1 WO2023061346 A1 WO 2023061346A1 CN 2022124473 W CN2022124473 W CN 2022124473W WO 2023061346 A1 WO2023061346 A1 WO 2023061346A1
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WO
WIPO (PCT)
Prior art keywords
terminal
dci
side link
resource pool
beam orientation
Prior art date
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Ceased
Application number
PCT/CN2022/124473
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English (en)
French (fr)
Inventor
郑倩
吴建明
纪子超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
Priority claimed from CN202111189825.9A external-priority patent/CN115968046B/zh
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2023061346A1 publication Critical patent/WO2023061346A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink

Definitions

  • the present application belongs to the communication field, and specifically relates to a side link communication method, a terminal and a network side device.
  • the transmitting end (Tx UE) and the receiving end (Rx UE) are performing frequency band 2 (Frequency Radio 2, FR2) correlation
  • beam alignment can be performed through synchronization signal block (Synchronization Signal and PBCH block, SSB) or channel state information-reference signal (Channel State Information reference signal, CSI-RS), etc.
  • synchronization signal block Synchronization Signal and PBCH block, SSB
  • CSI-RS Channel State Information reference signal
  • the Tx UE needs to send the same data packet to the Rx UE in different directions by means of repeated transmission. For example, assuming that Tx UE is configured with M transmit beams and Rx UE is configured with N receive beams, then, in order to ensure that all Rx UEs can receive data packets sent by Tx UE, Tx UE must repeat consecutive Send N identical data packets, that is, repeat and continuously send the same data packets in N time slots. And each Rx UE needs to continuously switch the beam direction in N time slots for data packet reception.
  • the Tx UE in order to complete the transmission of multicast or broadcast data packets, the Tx UE must repeatedly send the same data packet M ⁇ N times on M ⁇ N time slots, and each Rx UE needs to continuously switch the beam direction in N time slots To perform data packet reception, resulting in low utilization of communication resources.
  • Embodiments of the present application provide a side link communication method, a terminal, and a network side device, which can solve the problem of low resource utilization in the side link communication process.
  • a side link communication method including: a first terminal selects a target resource pool from at least one side link resource pool; the first terminal transmits target data based on the target resource pool; wherein, At least airspace resources are configured in each of the side link resource pools.
  • a side link communication method including at least one of the following: the second terminal receives the second side link control information SCI sent by the first terminal, and according to the second SCI indicated The airspace resources of the target resource pool receive the target data sent by the first terminal; the second terminal receives the second downlink control information DCI sent by the network side equipment, and receives the The target data sent by the first terminal, wherein the sending resource information is resource information reserved by the first terminal.
  • a side link communication method includes at least one of the following: the network side device sends the first downlink control information DCI to the first terminal, and the first DCI includes at least the first transmission Configure the indicated TCI and the geographic location of the network-side device, the first TCI is the TCI of the first transmit beam when the network-side device sends the first DCI, the first transmit beam is related to FR2, and It is determined by the network side device according to its own geographic location; the network side device sends the second DCI to multiple fourth terminals, the second DCI includes at least the transmission resource information reserved by the first terminal, and the multiple fourth terminals The fourth terminal is located within the coverage of the network-side device, and the first terminal and the first terminal belong to the plurality of fourth terminals; the network-side device sends first RRC signaling, and the first RRC The signaling carries the first reference beam orientation; the network side device sends second RRC signaling, where the second RRC signaling is used to configure the at least one side link resource
  • a side link communication method includes at least one of the following: a third terminal sends first side link control information SCI to the first terminal, and the first SCI includes at least the first The geographic locations of the three terminals and the second TCI, where the second TCI is the TCI of the second transmit beam when the third terminal transmits the first SCI, the second transmit beam is related to FR2 and determined by the The third terminal is determined according to its own geographical location; the third terminal sends a synchronization signal, and the synchronization signal is used for the first terminal and/or the second terminal to obtain the second reference beam position; wherein, the third terminal is the first terminal A terminal's synchronization reference terminal.
  • a side link communication device which is applied to a first terminal, and the device includes: a first acquisition module, configured to select a target resource pool from at least one side link resource pool; a first transmission module , used for the first terminal to transmit target data based on the target resource pool; wherein, at least airspace resources are configured in each of the side link resource pools.
  • a side link communication device which is applied to a second terminal, and the device includes a second transmission module, and the second transmission module is used for at least one of the following: receiving a second transmission sent by the first terminal receiving the target data sent by the first terminal according to the airspace resource of the target resource pool indicated by the second SCI; receiving the second downlink control information DCI sent by the network side device, and according to the The sending resource information indicated by the second DCI receives the target data sent by the first terminal, where the sending resource information is resource information reserved by the first terminal.
  • a side link communication device which is applied to a network side device, and the device includes a third transmission module, and the third transmission module is used for at least one of the following: sending first downlink control information DCI
  • the first DCI includes at least a first transmission configuration indication TCI and the geographic location of the network side device, and the first TCI is the first TCI when the network side device sends the first DCI.
  • the TCI of the transmit beam is related to FR2 and is determined by the network side device according to its own geographic location; the second DCI is sent to multiple fourth terminals, and the second DCI includes at least the Send resource information reserved by the first terminal, the multiple fourth terminals are located within the coverage of the network side device, and the first terminal, the first terminal belongs to the multiple fourth terminals; An RRC signaling, where the first RRC signaling carries a first reference beam orientation; and sending a second RRC signaling, where the second RRC signaling is used to configure the at least one side link resource pool.
  • a side link communication device which is applied to a third terminal, and the device includes a fourth transmission module, and the fourth transmission module is used for at least one of the following: sending first side link control information SCI to the first terminal, where the first SCI includes at least the geographic location of the third terminal and a second TCI, where the second TCI is the second transmit beam when the third terminal sends the first SCI TCI, the second transmit beam is related to FR2 and is determined by the third terminal according to its own geographic location; a synchronization signal is sent, and the synchronization signal is used for the first terminal and/or the second terminal to acquire the second reference beam Azimuth; wherein, the third terminal is a synchronization reference terminal of the first terminal.
  • a terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
  • the program or instruction is executed by the processor. The steps of the method described in the first aspect or the second aspect or the fourth aspect are implemented.
  • a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the first aspect or the second aspect or The steps of the method described in the fourth aspect.
  • a network-side device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the The steps of the method described in the third aspect are implemented when the processor executes.
  • a network side device including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the third aspect steps of the method.
  • a thirteenth aspect provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the first aspect or the second aspect or the third aspect or The steps of the method described in the fourth aspect.
  • a chip in a fourteenth aspect, there is provided a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, to implement the first aspect or the second Aspect or the steps of the method described in the third aspect or the fourth aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the computer program/program product is executed by at least one processor to implement the following The steps of the method described in the first aspect or the second aspect or the third aspect or the fourth aspect.
  • the first terminal implements side link communication through the target resource pool configured with airspace resources, which can realize beam alignment in the process of side link communication, and avoid the TX UE existing in related technologies needing to repeatedly send target data The problem of low resource utilization caused by etc.
  • Fig. 1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a side link communication method provided by an exemplary embodiment of the present application.
  • Fig. 3 is a schematic flowchart of a side link communication method provided by another exemplary embodiment of the present application.
  • Fig. 4a is a schematic diagram of configuration of air space resources in a side link resource pool provided by an exemplary embodiment of the present application.
  • Fig. 4b is a schematic diagram of a relationship between beam widths provided by an exemplary embodiment of the present application.
  • Fig. 4c is a schematic diagram of configuration of air space resources in a side link resource pool provided by another exemplary embodiment of the present application.
  • Fig. 5 is a schematic flowchart of a side link communication method provided by an exemplary embodiment of the present application.
  • Fig. 6a is a schematic diagram of a side link communication scenario provided by an exemplary embodiment of the present application.
  • Fig. 6b is a schematic diagram of a side link communication scenario provided by another exemplary embodiment of the present application.
  • Fig. 6c is a schematic diagram of a side link communication scenario provided by another exemplary embodiment of the present application.
  • Fig. 6d is a schematic diagram of a first reference coordinate provided by an exemplary embodiment of the present application.
  • Fig. 6e is a schematic diagram of a side link communication scenario provided by another exemplary embodiment of the present application.
  • Fig. 6f is a schematic diagram of an interaction flow of a side link communication method provided by an exemplary embodiment of the present application.
  • Fig. 6g is a schematic diagram of an interaction flow of a side link communication method provided by another exemplary embodiment of the present application.
  • Fig. 6h is a schematic diagram of an interaction process of a side link communication method provided by another exemplary embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a sidelink communication device provided by an exemplary embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a sidelink communication device provided by another exemplary embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a sidelink communication device provided by another exemplary embodiment of the present application.
  • Fig. 10 is a schematic structural diagram of a sidelink communication device provided by another exemplary embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.
  • Fig. 12 is a schematic structural diagram of a network side device provided by an exemplary embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a schematic structural diagram of a wireless communication system to which this embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), Pedestrian Terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • this application when communicating between the TX UE and the RX UE based on the multicast mode or the broadcast mode, how to manage or align the beams of the TX UE and the RX UE, this application provides a side link communication method , terminal and network side equipment.
  • the roles of the first terminal, the second terminal, and the third terminal mentioned in this application in the SL communication scenario can be different, for example, the first terminal can be used as a TX UE or RX UE or synchronization reference UE (SyncRef UE), the second terminal can also be used as TX UE or RX UE or SyncRef UE...
  • the first terminal is used as a TX UE
  • the second terminal is used as a RX UE
  • the third terminal is used as a SyncRef UE.
  • FIG. 2 it is a schematic flowchart of a side link communication method 200 provided by an exemplary embodiment of the present application.
  • the method 200 may be but not limited to be performed by a terminal (such as a first terminal (TX UE)), specifically, it may be implemented by implemented in hardware and/or software in the terminal.
  • the method 200 may at least include the following steps.
  • the first terminal selects a target resource pool from at least one side link resource pool.
  • At least airspace resources are configured in each of the side link resource pools. Therefore, compared to the related art, due to no airspace resources (such as Reference Beam Direction) being configured in the resource pools, the RX UE For the problem that the transmission beams of TX UEs cannot be aligned, this application can realize beam alignment between TX UEs and RX UEs during side link communication based on airspace resources.
  • airspace resources such as Reference Beam Direction
  • time domain resources and frequency domain resources may also be configured in each of the side link resource pools, where, for the first terminal, the air domain resources, the time domain resources, and the frequency domain resources Domain resources are aligned and consistent with each other.
  • the time domain resource may include a time slot (slot)
  • the frequency domain resource may include a frequency domain sub-channel (Sub-channel).
  • this embodiment introduces resources in three dimensions, namely, real-time domain resources, frequency domain resources, and air domain resources, so that in the side link communication process, the beam between the TX UE and the RX UE is realized. align.
  • the at least one side link resource pool may be implemented through high-level signaling (such as radio resource control (Radio Resource Control, RRC) signaling) configuration, protocol agreement, or network side configuration.
  • high-level signaling such as radio resource control (Radio Resource Control, RRC) signaling
  • RRC Radio Resource Control
  • the first terminal transmits target data based on the target resource pool.
  • the first terminal implements side link communication through the target resource pool configured with airspace resources, which can realize beam alignment in the side link communication process, and avoid the TX UE existing in the related art that needs to repeatedly send target data, etc.
  • FIG. 3 it is a schematic flowchart of a side link communication method 300 provided by an exemplary embodiment of the present application.
  • the method 300 may be but not limited to be performed by a terminal (such as a first terminal (TX UE)), specifically, it may be performed by an installation implemented in hardware and/or software in the terminal.
  • the method 300 may at least include the following steps.
  • the first terminal selects a target resource pool from at least one side link resource pool.
  • At least airspace resources are configured in each of the side link resource pools.
  • the airspace resources may include beam width (Beamwidth), beam offset (Beam Offset ), the number of beams, the beam index, and at least one of the Reference Beam Direction (Reference Beam Direction).
  • Beamwidth beam width
  • Beam Offset beam offset
  • Reference Beam Direction Reference Beam Direction
  • the beam offset is used to increase the direction granularity of the angle of arrival (Direction of Arrival, DOA) more effectively.
  • the beam offset, the beam width and the number of beams satisfy the following relationship: represents the beam offset, Indicates the beam width, and l indicates the order of the side link resource pools.
  • SL-Resource Pool Side-Link Resource Pool-1 (left figure)
  • Side-Link Resource Pool-2 right figure
  • the offset is configured as
  • the beam index k can be Optionally, the number of beams and beamwidth
  • the relationship can be in, is the upper limit function of x (Ceiling Function).
  • each beam in the side link resource pool Lookup can be done by the beam index.
  • the reference beam orientation may be configured simultaneously with the side link resource pool, but the reference beam orientation does not belong to the information in the side link resource pool.
  • the first terminal uses Sidelink Control Information (SCI) to indicate the relevant information of the target resource pool to the second terminal, it can use three control signaling-related indication fields (Field, also i.e. domain), i.e. (frequency domain) sub-channel (time domain) time slot and (spatial) beam index k.
  • SCI Sidelink Control Information
  • the maximum beam width of the first terminal may also be It is understood that the maximum beam width achievable by the terminal) is less than or equal to the beam width in the target resource pool.
  • the first terminal with the beam width ⁇ t can select the lth side link resource pool (i.e. the target resource pool) to send the target data, wherein the lth side link resource pool is configured with the beam width Cannot be smaller than the beam width ⁇ t .
  • the beamwidth ⁇ t that can be achieved by the first terminal may be determined by the first terminal according to its own feasibility (such as the number of antennas supported by the first terminal).
  • side link resource pool described in this embodiment may be, but not limited to, the resource pool in FR2.
  • the first terminal transmits target data based on the target resource pool.
  • implementation process of S320 may refer to the implementation process in the method embodiment 200, and in order to avoid repetition, details are not repeated here.
  • the accuracy of beam alignment during side link communication can be further improved, thereby improving the reliability of side link communication.
  • FIG. 5 it is a schematic flowchart of a side link communication method 500 provided by an exemplary embodiment of the present application.
  • the method 500 may be performed by a terminal (such as a first terminal (TX UE)), but may be specifically implemented by an installation implemented in hardware and/or software in the terminal.
  • the method 500 may at least include the following steps.
  • the first terminal selects a target resource pool from at least one side link resource pool.
  • At least airspace resources are configured in each of the side link resource pools.
  • implementation process of S510 may refer to the relevant descriptions in the aforementioned method embodiments 200 and/or 300, as a possible implementation manner, the implementation process of S510 may include S511 shown in FIG. 5 , the content is as follows .
  • the first terminal selects a target resource pool from at least one side link resource pool according to the first information.
  • the first information may include at least one of an absolute reference beam orientation, a relative reference beam orientation, and a first indication signal, and the first indication signal is used to indicate the first reference beam orientation , for the first terminal to determine the target resource pool.
  • the first information includes the absolute reference beam orientation
  • a point can be selected as the first reference coordinate for all configured side link resource pools, and a reference direction can be formulated at the same time, so that each side link
  • the reference beam orientation configured by the resource pool may be determined according to the reference direction specified by it, that is, the first reference coordinate is determined based on the at least one side link resource pool, and the at least one side link resource pool corresponds to An absolute reference beam bearing.
  • the process of obtaining the absolute reference beam orientation may include: the first terminal may determine the first reference position according to its own first position coordinates and first reference coordinates. The first beam azimuth where the coordinates are located, and then determine the absolute reference beam azimuth according to the first beam azimuth where the first reference coordinates are located; wherein, the first position coordinates include the position coordinates of the first terminal (such as geographic coordinates).
  • the foregoing first reference coordinate and reference direction may be two-dimensional or three-dimensional coordinates.
  • the TX UE (that is, the first terminal ) can calculate the first beam azimuth ⁇ where the first reference coordinate is located according to its own first position coordinates (x t , y t ) and the first reference coordinates (x 0 , y 0 ), and then according to the first A beam orientation ⁇ determines the absolute reference beam orientation ⁇ R .
  • the first terminal can put The direction of is used as the absolute reference beam orientation of the beam index 0 of the l-th side link resource pool.
  • the process of determining the absolute reference beam orientation ⁇ R by the first terminal is the same as that based on the two-dimensional space coordinates
  • the procedure for determining the absolute reference beam bearing is exactly the same.
  • the first position coordinates of the first terminal are (x t , y t , z t ), and the first reference coordinates are (x 0 , y 0 , z 0 ).
  • y t may be expressed in meters according to the latitude (Latitude) distance between the current location of the UE and the geographical coordinate (0,0,0) according to the WGS84 model.
  • the first reference coordinate y 0 0.
  • z t can be determined according to the WGS84 model, the elevation (Elevation) distance between the UE's current location and the geographic coordinates (0,0,0), expressed in meters.
  • the first reference coordinate z 0 0.
  • the origin of the WGS-84 coordinate system is at the center of mass of the earth
  • the Z axis points to the direction of the Conventional Earth Pole (CTP) defined by BIH1984.0
  • the X axis points to the zero-degree meridian plane and CTP of BIH1984.0
  • CTP Conventional Earth Pole
  • the intersection point of the equator, the Y axis and the Z and X axes form a right-handed coordinate system, that is, it is a ground-fixed coordinate system.
  • the absolute reference beam orientation ⁇ R may be defined as an X direction, or as a Y direction, or as a Z direction. It is worth noting that the absolute reference beam orientation ⁇ R cannot be configured per sidelink resource pool, instead, all resource pools must refer to the same absolute reference beam orientation.
  • the absolute reference beam orientation ⁇ R can be set to 0°
  • the first terminal in the case that the transmission beam orientation corresponding to the target data is the second beam orientation, the first terminal according to the second beam orientation, the absolute reference beam orientation .
  • the target resource pool determines a third beam orientation, and the first terminal sends the target data based on the third beam orientation. That is to say, if the first terminal sends target data to the azimuth ⁇ t , then the first terminal finds the best sending beam azimuth for the target resource pool (such as the lth side link resource pool), that is, the first Three beam azimuths, and sending the target data based on the third beam azimuth.
  • the first terminal determines the third beam orientation according to the second beam orientation, the absolute reference beam orientation, and the target resource pool, it may refer to the formula calculating the third beam orientation, wherein kopt represents the beam index of the third beam orientation, ⁇ t represents the second beam orientation, ⁇ R represents the absolute reference beam orientation, Indicates the beam offset in the target resource pool, the beamwidth in the target resource pool,
  • the second SCI may also be sent to the second terminal, and the second SCI may carry time domain resources (such as time slot information) of the target resource pool , frequency domain resources (such as subchannel information), airspace resources (such as beam index k) and other information, so that the second terminal can determine to receive beam azimuth.
  • time domain resources such as time slot information
  • frequency domain resources such as subchannel information
  • airspace resources such as beam index k
  • the second terminal is configured with at least one side link resource pool and an absolute reference beam orientation.
  • the second terminal after the second terminal obtains the first location coordinates of the first terminal, it can calculate the receiving beam orientation indicated by the beam index k according to its own location coordinates, and then judge whether it is being directed according to its own receiving status.
  • receiving the target data in the time slot if the second terminal decides to receive the target data indicated by the beam index k, then the second terminal matches the best receiving beam position, and receives and decodes the target data.
  • the second terminal judges whether to receive the target data, it can not only determine according to its own receiving status, but also according to the priority (that is, the priority) of the target data indicated in the second SCI, other and beam Form related information, etc., and comprehensively judge whether to receive the target data on the indicated air domain resource, time domain resource or frequency domain resource.
  • the first location coordinates (including location coordinates and/or orientation) of the first terminal mentioned in this application, the location coordinates of the second terminal, the geographic location of the third terminal, etc. can be configured by itself obtained by the position detection device.
  • the position detection device may at least include a gyroscope (Gyroscope), a GPS positioning device, a Beidou positioning device, and the like.
  • the gyroscope can use the principle of conservation of angular momentum to sense and maintain its own orientation, so that the terminal can accurately grasp its own antenna orientation.
  • the target resource pool is determined through the absolute reference beam orientation, and then the target data is transmitted based on the target resource pool. This is simple to implement, and the beam orientation is determined accurately, which can further ensure the reliability of side link communication.
  • the first terminal and the second terminal do not need to keep track of their own antenna orientations at all times, but can use network-side equipment (such as gNB, etc.)
  • the target resource pool is determined based on the relationship between them (that is, relative to the reference beam orientation), thereby improving the flexibility of side link communication.
  • the network side device may determine that the first terminal is based on the absolute reference beam orientation according to the first capability of the first terminal.
  • the target resource pool is still determined relative to the reference beam position. That is, the network side device can flexibly configure the reference beam orientation of the resource pool according to the capability of the terminal (based on the absolute reference beam orientation or the relative reference beam orientation).
  • the network side device may first determine a second indication signal according to the first capability of the first terminal, and then send the second indication signal to the first terminal to indicate that the first terminal Whether to select a target resource pool from at least one side link resource pool according to the absolute reference beam orientation or the relative reference beam orientation.
  • the first capability is used to represent whether the first terminal supports acquisition of a first location coordinate
  • the first location coordinate includes the location coordinate of the first terminal and/or the orientation of the first terminal.
  • the synchronization of the NR side link can be through the network side equipment (such as gNB) or through the Global Navigation Satellite System (Global Navigation Satellite System, GNSS) or through the third terminal (SyncRef UE), the synchronization signal (such as SSB or CSI-RS, etc.) may be transmitted by the SyncRef UE in the side link.
  • the terminal can be synchronized according to the gNB or GNSS clock, the synchronization process is correspondingly relatively simple. If the UE can only be synchronized according to the clock of the SyncRef UE, the synchronization process is relatively complicated.
  • the UE detects the Sidelink Synchronization Signal (SLSS) and recognizes the Sidelink Primary Synchronization Signal (Sidelink-Primary Synchronization Signal, S-PSS) and the Sidelink Secondary Synchronization Signal (Sidelink-Secondary Synchronization Signal) sent by the SyncRef UE.
  • S-SSS Sidelink Primary Synchronization Signal
  • S-SSS Sidelink Secondary Synchronization Signal
  • ID the SLSS identification of the SyncRef UE can be determined. Therefore, the SLSS transmission within the S-SSB also conveys the SyncRef UE's SLSS ID.
  • the S-SSB structure supports transmission using different beams for each S-SSB.
  • UEs can negotiate with each other and then align the directions of the beams.
  • SyncRef UE does not know the receiving beam situation of Rx UE, so how to determine the relative reference beam through the synchronization process is the key to determine the FR2 side link communication. It should be noted that during the synchronization process, the relevant unicast communication link cannot be established between the UEs.
  • the determination of the relative reference beam orientation has the following two scenarios (11) and (12).
  • the first scenario is that the UE determines the relative reference beam orientation through the network side equipment.
  • the second scenario is that the UE determines the relative reference beam orientation through the relationship between itself and the SyncRef UE orientation. The process of determining the relative reference beam azimuth in the two scenarios will be described respectively below.
  • the first terminal determines the relative reference beam position according to the beam position and beam index of the network-side device. That is to say, when the first terminal is within the coverage of the network, the relative reference beam may be determined according to the beam orientation and the beam index sent by the network side device.
  • the network side equipment (such as gNB) can determine the relative beam reference directions of all side link resource pools related to FR2 according to its own geographical location, and periodically send synchronization signals in FR2, such as SSB, the first terminal According to its own first position coordinates (such as geographic location) and the geographic location of the gNB, the beam orientation and beam index sent by the gNB, the relative beam reference direction of the relevant side link resource pool can be derived, and finally the selected target resource pool can be used to send A physical sidelink control channel (Physical SideLink Control Channel, PSCCH)/physical sidelink shared channel (Physical SideLink Shared Channel, PSSCH) signal, and the second terminal can use the selected target resource pool to receive the PSCCH/PSSCH signal.
  • PSCCH Physical SideLink Control Channel
  • PSSCH Physical SideLink Shared Channel
  • the first DCI needs to include the transmission configuration indicator (Transmission Configuration Indicator, TCI) of the first transmission beam and the network
  • TCI Transmission Configuration Indicator
  • the first terminal may receive the first DCI sent by the network side device, the first DCI includes at least the first TCI and the geographic location of the network side device, and the first TCI is the The TCI of the first transmission beam when the network side device sends the first DCI, the first transmission beam is related to FR2 and is determined by the network side device according to its own geographical location.
  • the first terminal determines the relative reference beam orientation according to the beam orientation and beam index of the first transmit beam, the first position coordinates, and the geographic location of the network-side device, and the first position coordinates include at least the The location coordinates of the first terminal.
  • the gNB performs beam alignment with the Tx UE (first terminal) through the transmission SSB of the Uu link.
  • the Tx UE determines the relative reference beam orientation through the gNB and its own geographical location according to the beam index k 1 .
  • Tx UE decides FR1 signaling resources and FR2 data packet transmission resources (including side link resource pool index m 2 and transmission beam index k 2 ),
  • Rx UE controls according to the SCI sent by TX UE received on FR1 Signaling, decide whether to receive non-control signaling, such as data packets, on FR2.
  • the first terminal determines the relative reference beam orientation according to the beam orientation and beam index of the third terminal, and the third terminal is the The synchronization reference terminal for the first terminal. That is to say, when the first terminal is not within the coverage of the network, the relative reference beam orientation may be determined by the third terminal (SyncRef UE) itself.
  • the SyncRef UE determines the relative beam reference directions of all FR2 related resource pools and periodically sends synchronization signals such as SSB in FR2. Thereafter, the SyncRef UE uses the selected sidelink resource pool to transmit data packets via PSCCH/PSSCH.
  • the first terminal derives the beam reference position of the relevant resource pool according to its own geographical position and the geographical position of the SyncRef UE.
  • the first terminal can use the selected target resource pool to transmit the PSCCH/PSSCH signal, and the second terminal can use the selected target resource pool to receive the PSCCH/PSSCH signal.
  • the first SCI needs to include at least the geographic location of the SyncRef UE and the second TCI, and the second TCI is the TCI of the second transmit beam when the third terminal transmits the first SCI; the first terminal transmits the beam according to the beam orientation and beam index of the second transmit beam, the first position coordinates, and the third terminal The geographic location of the relative reference beam is determined.
  • the SyncRef UE sends a synchronization signal, such as SSB, and all UEs (such as TX UEs) near the SyncRef UE obtain information about the orientation of the reference beam by receiving the SSB in the beam direction k1 , and then determine FR1 signaling resources and FR2 data packet transmission resources (including transmission beam index k 2 ), Rx UE determines whether to receive target data, such as data packets, on FR2 according to receiving the first SCI control signaling sent by TX UE.
  • a synchronization signal such as SSB
  • all UEs such as TX UEs
  • FR2 data packet transmission resources including transmission beam index k 2
  • the UE synchronized by the SyncRef UE needs to follow the movement and rotation of the SyncRef UE, and adjust the relative reference beam orientation accordingly.
  • the first terminal according to The second beam orientation, the relative reference beam orientation, and the target resource pool determine a third beam orientation, and the first terminal sends the target data based on the third beam orientation.
  • the first terminal can be according to the formula determining a third beam orientation, wherein kopt represents a beam index of said third beam orientation, ⁇ t represents said second beam orientation, ⁇ R represents said relative reference beam orientation or said relative reference beam orientation, Indicates the beam offset in the target resource pool, the beamwidth in the target resource pool,
  • the UE within the coverage can determine the relative reference beam by receiving the synchronization signal (such as SSB or CSI-RS signal) sent by the gNB, the geographic coordinates of the gNB, and its own first position coordinates. .
  • the synchronization signal such as SSB or CSI-RS signal
  • the gNB determines the transmission beam orientation according to the reference beam orientation, and notifies the receiving UE by sending the beam index method, Such as TXUE, RXUE.
  • the Rx UE receives the SSB or CSI-RS signal and determines the relative reference beam orientation.
  • the SyncRef UE will also send the SSB signal or CSI-RS signal, and the Rx UE receives the S-SSB or CSI-RS signal and determines the reference beam position.
  • gNB sends SSB or CSI-RS signal
  • Tx UE1 and Rx UE1 receive SSB or CSI-RS signal
  • the received beam index each decides its own relative reference beam orientation.
  • Tx UE1 if the Reference Signal Receiving Power (RSRP) received by Tx UE1 from gNB is lower than the set threshold, Tx UE1 becomes a SyncRef UE and sends S-SSB or CSI-RS signal.
  • Rx UE2 receives the S-SSB or CSI-RS signal sent by the SyncRef UE, and calculates the relative reference beam orientation according to the SyncRef UE and its own geographical location.
  • the target resource pool is determined relative to the reference beam azimuth, and then the target data is transmitted based on the target resource pool, which can not only further ensure the reliability of the side link communication, but also improve the flexibility of the side link communication.
  • the first information includes the first indication signal
  • the first terminal determines the target resource pool according to the first indication signal
  • the network side equipment such as gNB
  • Scenario 1 is that the TX UE (that is, the first terminal) is located within the coverage of the gNB, and only sends control signaling and non-control signaling on FR2 (such as data pack).
  • Scenario 2 is that the TX UE can be located within the coverage of the gNB or outside the coverage of the gNB, and it uses FR1 to send control signaling and FR2 to send non-control signaling. The process of determining the target resource pool in the two scenarios will be described respectively below.
  • the Rx UE Due to the limitation of the beam orientation of the control signaling after beamforming, the Rx UE must perform blind detection on the control signaling. Only when the Rx UE and the Tx UE are aligned, the Rx UE has the opportunity to obtain control The beam orientation information contained in the signaling, therefore, in the case where the first terminal sends control signaling and/or non-control signaling on the FR2 frequency band and is within the coverage of the network, if the TCI is used to indicate the Tx UE The success rate of the quasi-co-location (QCL) relationship with the Rx UE is not high, and it is difficult for the TX UE to notify the RX UE of sending beam orientation information in advance through its own control signaling.
  • QCL quasi-co-location
  • the Tx UE obtains transmission resource information from the gNB through the Mode-1 method, that is, the gNB sends the second DCI to UEs within its network coverage, such as the first terminal and the second terminal, where the second DCI includes the reserved Send resource information, such as sending beam azimuth information (indicated by TCI state), etc.
  • the first terminal may determine the target resource pool from at least one side link resource pool according to the transmission resource information included in the second DCI.
  • the second DCI is dedicated to indicating a target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal. That is to say, the second DCI is a newly introduced DCI format.
  • the second DCI may be scrambled by using a first Radio Network Temporary Identifier (RNTI, such as SL-FR2-RNTI), and the first RNTI is dedicated to the second DCI, but the The first RNTI is common to the first terminal, the second terminal, and other terminals except the first terminal and the second terminal, that is, multiple terminals can use the first RNTI to The second DCI is descrambled.
  • RNTI Radio Network Temporary Identifier
  • the second DCI may also include the source layer 2 identifier (Source L2-ID) of the first terminal; wherein, terminals with the same Source L2-ID can Use the transmission resource information reserved through the second DCI to send side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI.
  • the transmission resource information reserved by the DCI is used to transmit side link data.
  • the second DCI may also include the UE Source L2-ID (Source L2-ID) of the Tx UE, so that the same source
  • the Tx UE of the L2-ID can determine to use the transmission resources reserved by the second DCI to transmit side link data, while other UEs can determine the transmission resource information reserved by the second DCI.
  • FIG. 6f it is a schematic diagram of a sidelink communication interaction process provided by an exemplary embodiment of the present application, and the content is as follows.
  • the gNB configures side link resource pool information for the TX UE and the RX UE through the second RRC, including reference beam information.
  • the gNB sends the second DCI to the TX UE and the RX UE, and the second DCI includes the first RNTI, the TX UE source ID and related TCI status information.
  • the TX UE and the RX UE receive the second DCI according to the second RNTI, and acquire wave transmission resource information.
  • the TX UE determines the target resource pool from at least one side link resource pool according to the transmission resource information, such as transmission resource and transmission beam orientation.
  • the TX UE sends the target data according to the target resource pool (that is, the TCI state).
  • the RX UE performs beam alignment and receives the target data.
  • the side link communication interaction process provided in this implementation manner may include but not limited to the aforementioned S611 to S616.
  • S611 to S616 reference may be made to the relevant description of the foregoing method embodiments, and to avoid repetition, details are not repeated here.
  • the first terminal When the first terminal sends control signaling on the FR1 frequency band and sends non-control signaling on the FR2 frequency band, and the first terminal and the second terminal are within the coverage of the network, the first terminal An indication signal includes first RRC signaling, and the first RRC signaling includes at least a first reference beam orientation. Then, the first terminal can determine the target resource pool according to the first location coordinates and the first reference beam orientation carried in the first RRC, such as the sending beam orientation, and the second terminal can determine the target resource pool according to its own location coordinates And the first reference beam orientation carried in the first RRC determines the target resource pool.
  • the gNB can configure the relevant information of the side link resource pool through the first RRC signaling, such as the orientation of the first reference beam.
  • the Tx UE determines the transmission beam orientation based on the first reference beam orientation and its own first position coordinates
  • the Rx UE determines the receiving beam orientation based on the first reference beam orientation and its own position coordinates.
  • the Tx UE sends SCI control signaling through FR1, which includes FR2 related frequency domain resources and time domain resources, and also includes FR2 related beam orientation information. Since the Tx UE can send information through the FR1 omnidirectional beam, each Rx UE has the opportunity to receive the SCI control signaling sent through FR1.
  • Tx UE sends data packets through FR2, and Rx UE decides whether to receive data packets sent by Tx UE according to its own receiving status. If the Rx UE decides to receive the target data sent by the Tx UE, the Rx UE will align the transmit beam azimuth of the Tx UE and receive the decoded target data.
  • FIG. 6g it is a schematic diagram of a sidelink communication interaction process provided by an exemplary embodiment of the present application, and the content is as follows.
  • the gNB configures side link resource pool information for the TX UE and the RX UE through the second RRC, including reference beam information.
  • the TX UE sends a second SCI to the RX UE through FR1, where the second SCI includes information about the target resource pool.
  • the RX UE receives the second SCI control signaling through FR1, and decides whether to receive the target data sent by the TX UE.
  • the TX UE sends the target data according to the target resource pool (that is, the TCI state).
  • the RX UE performs beam alignment and receives the target data.
  • the side link communication interaction process provided in this implementation manner may include but not limited to the aforementioned S621 to S625.
  • S621 to S625 the side link communication interaction process provided in this implementation manner may include but not limited to the aforementioned S621 to S625.
  • S621 to S625 the implementation process of S621 to S625
  • the first terminal when the first terminal sends control signaling on the FR1 frequency band, and sends non-control signaling on the FR2 frequency band, and the first terminal and the second terminal are not within network coverage
  • the first indication signal includes a synchronization signal (such as SSB) sent by the third terminal
  • the first terminal determines the second reference beam orientation according to the beam orientation and beam index of the first receiving beam, and according to The second reference beam orientation and the first position coordinates determine the target resource pool, and the first receiving beam is used to receive the synchronization signal.
  • the UE receives the synchronization signal sent by the SyncRef UE (synchronization reference UE), such as SSB, and determines the relative reference for sending and receiving according to the SyncRef UE and its own geographical location beam azimuth.
  • SyncRef UE synchronization reference UE
  • the Tx UE can send the second SCI control signaling to the RX UE through FR1, and the second SCI control signaling includes FR2 related frequency domain and time domain resources, Also includes FR2 related beam azimuth information.
  • Tx UE sends data packets on FR2, and Rx UE decides whether to receive data packets sent by Tx UE according to its own receiving status. If the Rx UE decides to receive the data packet sent by the Tx UE, the Rx UE will align the transmit beam azimuth of the Tx UE and receive the decoded target data.
  • FIG. 6h it is a schematic diagram of a sidelink communication interaction process provided by an exemplary embodiment of the present application, and the content is as follows.
  • the SyncRef UE sends an SSB signal.
  • the TX UE and the RX UE receive the SSB signal, and determine the relative reference beam orientation according to the beam orientation of the second received beam corresponding to the SSB signal and the related index.
  • the TX UE sends the second SCI to the RX UE through FR1.
  • the RX UE receives the second SCI control signaling through FR1, and decides whether to receive the target data sent by the TX UE.
  • the TX UE sends the target data through FR2.
  • the RX UE receives the target data through FR2.
  • the side link communication interaction process provided in this implementation manner may include but not limited to the aforementioned S631 to S636.
  • S631 to S636 reference may be made to the related descriptions of the foregoing method embodiments, and details are not repeated here to avoid repetition.
  • the first terminal transmits target data based on the target resource pool.
  • An exemplary embodiment of the present application also provides a side link communication method, which can be executed by a terminal (such as a second terminal (RX UE)), but can be specifically executed by hardware and/or software installed in the terminal .
  • the method may at least include any one of the following steps.
  • the second terminal receives the second side link control information SCI sent by the first terminal, and receives the target data sent by the first terminal according to the airspace resource of the target resource pool indicated by the second SCI, wherein the The airspace resource information of the target resource pool is carried in the second SCI;
  • the second terminal receives the second downlink control information DCI sent by the network side device, and receives the target data sent by the first terminal according to the sending resource information indicated by the second DCI, wherein the sending resource The information is resource information reserved by the first terminal.
  • the airspace resource includes at least one of beam width, beam offset, beam quantity, and beam index.
  • the beam offset, the beam width and the number of beams satisfy the following relationship: in, represents the beam offset, represents the beam width, Indicates the number of beams, and l indicates the order of the side link resource pools.
  • the method before the step of receiving the target data sent by the first terminal, the method further includes: the second terminal combines the receiving beam azimuth with the target data according to the airspace resource information of the target resource pool Aligning the sending beam azimuth of the first terminal; or, the second terminal aligning the receiving beam azimuth with the sending beam azimuth of the first terminal according to the sending beam azimuth included in the second DCI.
  • the second DCI further includes a source L2-ID of a terminal source layer; wherein, terminals with the same Source L2-ID can use the transmission resources reserved through the second DCI Information to send side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to perform side link sending of data.
  • the second DCI is dedicated to indicating the target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal and transmission resource information. beam azimuth.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI
  • the first RNTI is dedicated to the second DCI
  • the first RNTI is common to the first terminal , the second terminal, and other terminals except the first terminal and the second terminal.
  • An exemplary embodiment of the present application also provides a side link communication method, which may be executed by, but not limited to, a network-side device (such as gNB), and specifically may be executed by hardware and/or software installed in the network-side device.
  • a network-side device such as gNB
  • the method may at least include any one of the following steps.
  • the network side device sends the first downlink control information DCI to the first terminal, the first DCI includes at least the first transmission configuration indication TCI and the geographic location of the network side device, and the first TCI is the The TCI of the first transmit beam when the network-side device sends the first DCI, the first transmit beam is related to FR2 and is determined by the network-side device according to its geographical location.
  • the network-side device sends the second DCI to multiple fourth terminals, the second DCI includes at least transmission resource information reserved by the first terminal, and the multiple fourth terminals are located at the network-side device within the coverage area, and the first terminal, and the first terminal belongs to the plurality of fourth terminals.
  • the multiple fourth terminals refer to at least some of the terminals located within the coverage of the network side device.
  • the network side device sends the first RRC signaling, where the first RRC signaling carries the first reference beam orientation.
  • the network side device sends second RRC signaling, where the second RRC signaling is used to configure the at least one side link resource pool.
  • the second DCI further includes the source L2-ID of the first terminal; wherein, terminals with the same Source L2-ID can use the second DCI
  • the transmission resource information reserved by DCI is used to transmit side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved by the second DCI, but cannot use the transmission resources reserved by the second DCI information for transmission of side-link data.
  • the second DCI is dedicated to indicating a target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI
  • the first RNTI is an RNTI dedicated to scrambling the second DCI, but the first RNTI is commonly used by all The first terminal, the second terminal, and other terminals except the first terminal and the second terminal.
  • An exemplary embodiment of the present application also provides a side link communication method, which may be but not limited to be executed by a terminal (such as a third terminal), and specifically may be executed by hardware and/or software installed in a network side device.
  • the method may at least include any one of the following steps.
  • the third terminal sends the first side link control information SCI to the first terminal, the first SCI includes at least the geographic location of the third terminal and a second TCI, the second TCI is the third The TCI of the second transmission beam when the terminal sends the first SCI, the second transmission beam is related to FR2 and is determined by the third terminal according to its own geographic location; wherein the third terminal is the The synchronization reference terminal for the first terminal.
  • the third terminal sends a synchronization signal, where the synchronization signal is used by the first terminal and/or the second terminal to acquire the second reference beam orientation.
  • the side link communication method provided in the embodiment of the present application may be executed by a side link communication device, or a control module in the side link communication device for executing the side link communication method.
  • the side link communication device provided in the embodiment of the present application is described by taking the side link communication device executing the side link communication method as an example.
  • FIG. 7 it is a schematic structural diagram of a side link communication device 700 provided by an exemplary embodiment of the present application.
  • the device 700 may include a first acquisition module 710 for selecting a target from at least one side link resource pool. A resource pool; a first transmission module 720, configured for the first terminal to transmit target data based on the target resource pool; wherein, at least airspace resources are configured in each of the side link resource pools.
  • the airspace resource includes at least one of beam width, beam offset, beam quantity, and beam index.
  • the beam offset, the beam width and the number of beams satisfy the following relationship: in, represents the beam offset, represents the beam width, Indicates the number of beams, and l indicates the order of the side link resource pools.
  • time domain resources and frequency domain resources are also configured in each of the side link resource pools, where, for the first terminal, the air domain resources, the time domain resources, and the frequency domain resources are mutually Aligned and consistent.
  • the maximum beamwidth of the first terminal is less than or equal to the beamwidth in the target resource pool.
  • the step of the first transmission module 720 selecting a target resource pool from at least one side link resource pool includes: selecting a target resource pool from at least one side link resource pool according to the first information; wherein , the first information includes at least one of an absolute reference beam orientation, a relative reference beam orientation, and a first indication signal, where the first indication signal is used to indicate the first reference beam orientation.
  • the process of obtaining the absolute reference beam orientation includes: determining, by the first terminal, the The first beam orientation where the first reference coordinates are located; the first terminal determines the absolute reference beam orientation according to the first beam orientation where the first reference coordinates are located; wherein the first position coordinates include at least the The location coordinates of the first terminal, the first reference coordinates are determined based on the at least one side link resource pool.
  • the process of obtaining the relative reference beam orientation includes at least one of the following: when the first terminal is within network coverage, the The first terminal determines the relative reference beam orientation according to the beam orientation and beam index of the network side equipment; when the first terminal is not within the coverage of the network, the first terminal determines the relative reference beam orientation according to the beam orientation of the third terminal and a beam index to determine the relative reference beam orientation, and the third terminal is a synchronization reference terminal of the first terminal.
  • the step of the first transmission module 720 determining the relative reference beam orientation according to the beam orientation and beam index of the network-side device includes: receiving the first downlink control information DCI sent by the network-side device, the The first DCI includes at least a first transmission configuration indication TCI and the geographic location of the network-side device, the first TCI is the TCI of the first transmit beam when the network-side device sends the first DCI, so The first transmit beam is related to FR2 and is determined by the network-side device according to its own geographic location; according to the beam orientation and beam index of the first transmit beam, the first position coordinates, and the geographic location of the network-side device , determining the relative reference beam orientation, the first position coordinates at least including the position coordinates of the first terminal.
  • the step of the first transmission module 720 determining the relative reference beam orientation according to the beam orientation and beam index of the third terminal includes: receiving the first side link control information SCI sent by the third terminal,
  • the first SCI includes at least the geographic location of the third terminal and a second TCI, where the second TCI is the TCI of the second transmit beam when the third terminal sends the first SCI; according to the first The beam orientation and beam index of the two transmitting beams, the first location coordinates, and the geographic location of the third terminal determine the relative reference beam orientation.
  • the first transmission module 720 is used for any of the following: in the case that the transmission beam azimuth corresponding to the target data is a second beam azimuth, according to the second beam azimuth, the absolute reference beam Azimuth and the target resource pool determine a third beam azimuth, or determine a third beam azimuth according to the second beam azimuth, the relative reference beam azimuth, and the target resource pool; send the azimuth based on the third beam azimuth the target data.
  • k opt represents the beam index of the third beam orientation
  • ⁇ t represents the second beam orientation
  • ⁇ R represents the absolute reference beam orientation or the relative reference beam orientation
  • the first transmission module 720 determines according to the second indication signal sent by the network side device The absolute reference beam orientation or the relative reference beam orientation selects a target resource pool from at least one of the side link resource pools; wherein, the second indication signal is determined by the network side device according to the first capability, and the The first capability is used to indicate whether the first terminal supports acquisition of a first location coordinate, where the first location coordinate includes the location coordinate of the first terminal and/or the orientation of the first terminal.
  • the first position coordinates are acquired by the first terminal through a position detection device provided on itself, and the position detection device includes at least a gyroscope.
  • the first indication signal includes the second DCI, and the first terminal The second DCI is sent by the network side equipment, and the second DCI includes at least the transmission resource information reserved by the first terminal; the first terminal sends control signaling on the frequency band FR1 and sends non-control signaling on the frequency band FR2
  • the first indication signal includes a first radio resource control RRC signaling, and the first RRC signaling includes at least a first reference Beam orientation; when the first terminal sends control signaling on the FR1 frequency band and sends non-control signaling on the FR2 frequency band, and the first terminal and the second terminal are not within the coverage of the network, the The first indication signal includes a synchronization signal sent by the third terminal.
  • the second DCI further includes the source L2-ID of the first terminal; wherein, terminals with the same Source L2-ID can use the The transmission resource information of the source L2-ID is used to transmit side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to perform Transmission of sidelink data.
  • the second DCI is dedicated to indicating a target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI, the first RNTI is dedicated to the second DCI, but the first RNTI is common to the first terminal, the the second terminal and other terminals except the first terminal and the second terminal.
  • RNTI wireless network temporary identifier
  • the first terminal determines the A target resource pool; when the first indication signal is the first RRC signaling, the first terminal determines the A target resource pool: when the first indication signal is the synchronization signal, the first terminal determines a second reference beam orientation according to the beam orientation and beam index of the first received beam, and determines the second reference beam orientation according to the second
  • the target resource pool is determined with reference to the beam orientation and the first location coordinates, and the first receiving beam is used to receive the synchronization signal.
  • the radio frequency unit 1101 sends a second SCI to the second terminal, where the second SCI carries at least information about airspace resources in the target resource pool.
  • FIG. 8 it is a schematic structural diagram of a side link communication device 800 provided by an exemplary embodiment of the present application.
  • the device 800 may include a second transmission module 810, and the second transmission module 810 is used for at least one of the following : receiving the second side link control information SCI sent by the first terminal, and receiving the target data sent by the first terminal according to the airspace resource of the target resource pool indicated by the second SCI; receiving the second side link control information sent by the network side device The downlink control information DCI, and receiving the target data sent by the first terminal according to the transmission resource information indicated by the second DCI, wherein the transmission resource information is resource information reserved by the first terminal.
  • the airspace resource includes at least one of beam width, beam offset, beam quantity, and beam index.
  • the beam offset, the beam width and the number of beams satisfy the following relationship: in, represents the beam offset, represents the beam width, Indicates the number of beams, and l indicates the order of the side link resource pools.
  • the second transmission module 810 is configured to align the receiving beam azimuth with the sending beam azimuth of the first terminal according to the airspace resource information of the target resource pool; or, according to the information in the second DCI
  • the included sending beam azimuth aligns the receiving beam azimuth with the sending beam azimuth of the first terminal.
  • the second DCI further includes a Source L2-ID of the terminal source layer; wherein, terminals with the same Source L2-ID can use the transmission resource information reserved through the second DCI for side Transmission of link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to transmit side link data .
  • the second DCI is dedicated to indicating the target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal and a transmission beam orientation.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI, the first RNTI is dedicated to the second DCI, but the first RNTI is common to the first terminal, the the second terminal and other terminals except the first terminal and the second terminal.
  • RNTI wireless network temporary identifier
  • the device 900 may include a third transmission module 910, and the third transmission module 910 is used for at least one of the following : Sending first downlink control information DCI to the first terminal, where the first DCI includes at least a first transmission configuration indication TCI and the geographic location of the network side device, and the first TCI is sent by the network side device
  • the first DCI is the TCI of the first transmission beam, the first transmission beam is related to FR2, and is determined by the network side device according to its own geographic location; sending the second DCI to multiple fourth terminals, so
  • the second DCI includes at least transmission resource information reserved by the first terminal, the plurality of fourth terminals are located within the coverage of the network side device, and the first terminal and the first terminal belong to the The plurality of fourth terminals; sending first RRC signaling, where the first RRC signaling carries a first reference beam orientation; sending second RRC signaling, where the second R
  • the second DCI further includes the source L2-ID of the first terminal; wherein, terminals with the same Source L2-ID can use the The transmission resource information of the source L2-ID is used to transmit side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to perform Transmission of sidelink data.
  • the second DCI is dedicated to indicating a target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI
  • the first RNTI is an RNTI dedicated to scrambling the second DCI, but the first RNTI is commonly used in the first RNTI A terminal, the second terminal, and other terminals except the first terminal and the second terminal.
  • FIG. 10 it is a schematic structural diagram of a side link communication device 1000 provided by an exemplary embodiment of the present application.
  • the device 1000 may include a fourth transmission module 1010, and the fourth transmission module 1010 is used for at least one of the following : Send the first side link control information SCI to the first terminal, where the first SCI includes at least the geographic location of the third terminal and a second TCI, where the second TCI is sent by the third terminal to the first terminal.
  • the TCI of the second transmission beam during an SCI is related to FR2 and is determined by the third terminal according to its own geographic location; a synchronization signal is sent, and the synchronization signal is used for the first terminal and/or Or the second terminal acquires the second reference beam orientation; wherein, the third terminal is a synchronization reference terminal of the first terminal.
  • the side link communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the side-link communication device provided in the embodiment of the present application can implement the various processes implemented in the foregoing method embodiments and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the methods described in the method embodiments 200-500 method steps.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110, etc. at least some of the components.
  • the terminal 1100 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1110 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 11042, and the graphics processor 11041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1107 includes a touch panel 11071 and other input devices 11072 . Touch panel 11071, also called touch screen.
  • the touch panel 11071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1101 receives the downlink data from the network side device, and processes it to the processor 1110; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 1109 can be used to store software programs or instructions as well as various data.
  • the memory 1109 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1109 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1110 .
  • the terminal 1100 acts as a TX UE
  • the processor 1110 selects a target resource pool from at least one side link resource pool; transmits target data based on the target resource pool; wherein, at least airspace resources are configured in each of the side link resource pools.
  • the airspace resource includes at least one of beam width, beam offset, beam quantity, and beam index.
  • the beam offset, the beam width and the number of beams satisfy the following relationship in, represents the beam offset, represents the beam width, Indicates the number of beams, and l indicates the order of the side link resource pools.
  • time domain resources and frequency domain resources are also configured in each of the side link resource pools, where, for the first terminal, the air domain resources, the time domain resources, and the frequency domain resources are mutually Aligned and consistent.
  • the maximum beamwidth of the first terminal is less than or equal to the beamwidth in the target resource pool.
  • the step of the processor 1110 selecting a target resource pool from at least one side link resource pool includes: selecting a target resource pool from at least one side link resource pool according to first information; wherein, the The first information includes at least one of an absolute reference beam orientation, a relative reference beam orientation, and a first indication signal, and the first indication signal is used to indicate the first reference beam orientation.
  • the process of obtaining the absolute reference beam orientation includes: determining, by the first terminal, the The first beam orientation where the first reference coordinates are located; the first terminal determines the absolute reference beam orientation according to the first beam orientation where the first reference coordinates are located; wherein the first position coordinates include at least the The location coordinates of the first terminal, the first reference coordinates are determined based on the at least one side link resource pool.
  • the process of obtaining the relative reference beam orientation includes at least one of the following: when the first terminal is within network coverage, the The first terminal determines the relative reference beam orientation according to the beam orientation and beam index of the network side equipment; when the first terminal is not within the coverage of the network, the first terminal determines the relative reference beam orientation according to the beam orientation of the third terminal and a beam index to determine the relative reference beam orientation, and the third terminal is a synchronization reference terminal of the first terminal.
  • the step of the processor 1110 determining the relative reference beam orientation according to the beam orientation and the beam index of the network-side device includes: receiving first downlink control information DCI sent by the network-side device, the first A DCI includes at least a first transmission configuration indication TCI and the geographic location of the network-side device, the first TCI is the TCI of the first transmit beam when the network-side device sends the first DCI, and the first TCI A transmit beam is related to FR2 and is determined by the network side device according to its own geographic location; according to the beam orientation and beam index of the first transmit beam, the first position coordinates, and the geographic location of the network side device, determine The relative reference beam orientation, the first position coordinates at least include the position coordinates of the first terminal.
  • the step of the processor 1110 determining the relative reference beam orientation according to the beam orientation and beam index of the third terminal includes: receiving first side link control information SCI sent by the third terminal, the The first SCI includes at least the geographic location of the third terminal and a second TCI, where the second TCI is the TCI of the second transmission beam when the third terminal transmits the first SCI; according to the second transmission
  • the relative reference beam orientation is determined based on the beam orientation and beam index of the beam, the first location coordinates, and the geographic location of the third terminal.
  • the processor 1110 is used for any of the following: in the case that the sending beam azimuth corresponding to the target data is a second beam azimuth, according to the second beam azimuth, the absolute reference beam azimuth,
  • the target resource pool determines a third beam orientation, or determines a third beam orientation according to the second beam orientation, the relative reference beam orientation, and the target resource pool; and sends the target beam orientation based on the third beam orientation data.
  • k opt represents the beam index of the third beam orientation
  • ⁇ t represents the second beam orientation
  • ⁇ R represents the absolute reference beam orientation or the relative reference beam orientation
  • the processor 1110 determines according to the second indication signal sent by the network side device The absolute reference beam orientation or the relative reference beam orientation selects a target resource pool from at least one of the side link resource pools; wherein, the second indication signal is determined by the network side device according to the first capability, and the second A capability is used to indicate whether the first terminal supports acquisition of a first location coordinate, where the first location coordinate includes the location coordinate of the first terminal and/or the orientation of the first terminal.
  • the first position coordinates are acquired by the first terminal through a position detection device provided on itself, and the position detection device includes at least a gyroscope.
  • the first indication signal includes the second DCI, and the first terminal The second DCI is sent by the network side equipment, and the second DCI includes at least the transmission resource information reserved by the first terminal; the first terminal sends control signaling on the frequency band FR1 and sends non-control signaling on the frequency band FR2
  • the first indication signal includes a first radio resource control RRC signaling, and the first RRC signaling includes at least a first reference Beam orientation; when the first terminal sends control signaling on the FR1 frequency band and sends non-control signaling on the FR2 frequency band, and the first terminal and the second terminal are not within the coverage of the network, the The first indication signal includes a synchronization signal sent by the third terminal.
  • the second DCI further includes the source L2-ID of the first terminal; wherein, terminals with the same Source L2-ID can use the source L2-ID reserved through the second DCI
  • the transmission resource information of the source L2-ID is used to transmit side link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to perform Transmission of sidelink data.
  • the second DCI is dedicated to indicating a target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI, the first RNTI is dedicated to the second DCI, but the first RNTI is common to the first terminal, the the second terminal and other terminals except the first terminal and the second terminal.
  • RNTI wireless network temporary identifier
  • the first terminal determines the A target resource pool; when the first indication signal is the first RRC signaling, the first terminal determines the A target resource pool: when the first indication signal is the synchronization signal, the first terminal determines a second reference beam orientation according to the beam orientation and beam index of the first received beam, and determines the second reference beam orientation according to the second
  • the target resource pool is determined with reference to the beam orientation and the first location coordinates, and the first receiving beam is used to receive the synchronization signal.
  • the radio frequency unit 1101 sends a second SCI to the second terminal, where the second SCI carries at least information about airspace resources in the target resource pool.
  • the terminal 1100 acts as an RX UE
  • the processing 1110 is configured to perform at least one of the following: receiving the second side link control information SCI sent by the first terminal, and receiving the second side link control information SCI sent by the first terminal according to the airspace resources of the target resource pool indicated by the second SCI.
  • Target data receiving second downlink control information DCI sent by the network side device, and receiving target data sent by the first terminal according to transmission resource information indicated by the second DCI, wherein the transmission resource information is the first terminal Reserved resource information.
  • the airspace resource includes at least one of beam width, beam offset, beam quantity, and beam index.
  • the beam offset, the beam width and the number of beams satisfy the following relationship: in, represents the beam offset, represents the beam width, Indicates the number of beams, and l indicates the order of the side link resource pools.
  • the processing 1110 is configured to align the receiving beam azimuth with the transmitting beam azimuth of the first terminal according to the airspace resource information of the target resource pool; or, according to the sending beam azimuth included in the second DCI A beam orientation, aligning the receiving beam orientation with the transmitting beam orientation of the first terminal.
  • the second DCI further includes a Source L2-ID of the terminal source layer; wherein, terminals with the same Source L2-ID can use the transmission resource information reserved through the second DCI for side Transmission of link data; terminals with different Source L2-IDs can determine the transmission resource information reserved through the second DCI, but cannot use the transmission resource information reserved through the second DCI to transmit side link data .
  • the second DCI is dedicated to indicating the target resource to the first terminal and/or the second terminal, and the target resource includes at least transmission resource information reserved by the first terminal and a transmission beam orientation.
  • the second DCI is scrambled by using a first wireless network temporary identifier RNTI, the first RNTI is dedicated to the second DCI, but the first RNTI is common to the first terminal, the the second terminal and other terminals except the first terminal and the second terminal.
  • RNTI wireless network temporary identifier
  • the terminal 1100 acts as a SyncRef UE
  • the processing 1110 is configured to perform at least one of the following: sending first side link control information SCI to the first terminal, where the first SCI includes at least the geographic location of the third terminal and a second TCI, the second The TCI is the TCI of the second transmit beam when the third terminal sends the first SCI, the second transmit beam is related to FR2 and is determined by the third terminal according to its own geographic location; the third terminal sends A synchronization signal, where the synchronization signal is used by the first terminal and/or the second terminal to acquire a second reference beam orientation; wherein, the third terminal is a synchronization reference terminal of the first terminal.
  • the embodiment of the present application also provides a network-side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the network-side device method embodiment. steps of the method described above.
  • the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network device 1200 includes: an antenna 1201 , a radio frequency device 1202 , and a baseband device 1203 .
  • the antenna 1201 is connected to the radio frequency device 1202 .
  • the radio frequency device 1202 receives information through the antenna 1201, and sends the received information to the baseband device 1203 for processing.
  • the baseband device 1203 processes the information to be sent and sends it to the radio frequency device 1202
  • the radio frequency device 1202 processes the received information and sends it out through the antenna 1201 .
  • the foregoing frequency band processing device may be located in the baseband device 1203 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 1203 , and the baseband device 1203 includes a processor 1204 and a memory 1205 .
  • the baseband device 1203 may include, for example, at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG.
  • the baseband device 1203 may also include a network interface 1206 for exchanging information with the radio frequency device 1202, such as a common public radio interface (CPRI for short).
  • a network interface 1206 for exchanging information with the radio frequency device 1202, such as a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present invention also includes: instructions or programs stored in the memory 1205 and operable on the processor 1204, and the processor 1204 calls the instructions or programs in the memory 1205 to execute the modules shown in FIG. 9 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium may be volatile or non-volatile, and a program or instruction is stored on the readable storage medium, the program or When the instructions are executed by the processor, each process of the above-mentioned embodiment of the sidelink communication method can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM).
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run the network side device program or instruction to realize the above side link
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run the network side device program or instruction to realize the above side link
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application also provides a computer program product, the computer program product is stored in a non-transitory storage medium, and when the computer program product is executed by the processor, each of the above-mentioned side link communication method embodiments can be realized. process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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Abstract

本申请公开了一种侧链路通信方法、终端及网络侧设备，属于通信领域，本申请实施例的侧链路通信方法包括：第一终端从至少一个侧链路资源池中选取目标资源池；所述第一终端基于所述目标资源池传输目标数据；其中，每个所述侧链路资源池中至少配置有空域资源。

Description

侧链路通信方法、终端及网络侧设备
交叉引用
本发明要求在2021年10月11日提交中国专利局、申请号为202111189825.9、发明名称为“侧链路通信方法、终端及网络侧设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于通信领域，具体涉及一种侧链路通信方法、终端及网络侧设备。
背景技术
在侧链路(Sidelink，SL，也可称作旁链路或副链路)通信过程中，发送端(Tx UE)和接收端(Rx UE)在进行频段2(Frequency Radio 2，FR2)相关的波束赋形的高频信号传输时，可通过同步信号块(Synchronization Signal and PBCH block，SSB)或信道状态信息-参考信号(Channel State Information reference signal，CSI-RS)等进行波束对齐后再进行侧链路通信。
但是，如果Tx UE和Rx UE之间基于组播方式或广播方式进行通信时，会导致Tx UE无法和Rx UE在一个时隙(Slot)上对齐。在此情况下，Tx UE需要通过重复发送的方式，对不同方向的Rx UE发送相同的数据包。例如，假设Tx UE被配置有M个发送波束、Rx UE被配置有N个接收波束，那么，为了保证所有的Rx UE能够接收Tx UE发送的数据包，Tx UE必须在每个波束方向重复连续发送N个相同的数据包，即，在N个时隙重复连续发送相同的数据包。而每个Rx UE需要在N个时隙连续切换波束方向以进行数据包接收。换言之，为了完成组播或广播数据包的传输，Tx UE必须在M×N个时隙上重复发送M×N次相同的数据包、且每个Rx UE需要在N个时隙连续切换波束方向以进行数据包接收，导致通信资源的利用率低。
发明内容
本申请实施例提供一种侧链路通信方法、终端及网络侧设备，能够解决侧链路通信过程中存在的资源利用率低的问题。
第一方面，提供了一种侧链路通信方法，包括：第一终端从至少一个侧链路资源池中选取目标资源池；所述第一终端基于所述目标资源池传输目标数据；其中，每个所述侧链路资源池中至少配置有空域资源。
第二方面，提供了一种侧链路通信方法，所述方法包括以下至少一项：第二终端接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据；所述第二终端接收网络侧设备发送的第二下行控制信息DCI，以及根据所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
第三方面，提供了一种侧链路通信方法，所述方法包括以下至少一项：网络侧设备发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；网络侧设备发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端；网络侧设备发送第一RRC信令，所述第一RRC信令中携带有第一参考波束方位；网络侧设备发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
第四方面，提供了一种侧链路通信方法，所述方法包括以下至少一项：第三终端发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括 所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；第三终端发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位；其中，所述第三终端为所述第一终端的同步参考终端。
第五方面，提供了一种侧链路通信装置，应用于第一终端，所述装置包括：第一获取模块，用于从至少一个侧链路资源池中选取目标资源池；第一传输模块，用于所述第一终端基于所述目标资源池传输目标数据；其中，每个所述侧链路资源池中至少配置有空域资源。
第六方面，提供了一种侧链路通信装置，应用于第二终端，所述装置包括第二传输模块，所述第二传输模块用于以下至少一项：接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据；接收网络侧设备发送的第二下行控制信息DCI，以及根据所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
第七方面，提供了一种侧链路通信装置，应用于网络侧设备，所述装置包括第三传输模块，所述第三传输模块用于以下至少一项：发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端；发送第一RRC信令，所述第一RRC信令中携带有第一参考波束方位；发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
第八方面，提供了一种侧链路通信装置，应用于第三终端，所述装置包括第四传输模块，所述第四传输模块用于以下至少一项：发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位；其中，所述第三终端为所述第一终端的同步参考终端。
第九方面，提供了一种终端，该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第二方面或第四方面所述的方法的步骤。
第十方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面或第四方面所述的方法的步骤。
第十一方面，提供了一种网络侧设备，该网络侧设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第十二方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第三方面所述的方法的步骤。
第十三方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面或第二方面或第三方面或第四方面所述的方法的步骤。
第十四方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面或第三方面或第四方面所述的方法的步骤。
第十五方面，提供了一种计算机程序产品/程序产品，所述计算机程序/ 程序产品被存储在非瞬态的存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第二方面或第三方面或第四方面所述的方法的步骤。
在本申请实施例中，第一终端通过配置有空域资源的目标资源池实现侧链路通信，能够实现侧链路通信过程中的波束对齐，避免相关技术中存在的TX UE需要重复发送目标数据等而导致的资源利用率低的问题。
附图说明
图1是本申请一示例性实施例提供的无线通信系统的结构示意图。
图2是本申请一示例性实施例提供的侧链路通信方法的流程示意图。
图3是本申请另一示例性实施例提供的侧链路通信方法的流程示意图。
图4a是本申请一示例性实施例提供的侧链路资源池的空域资源的配置示意图。
图4b是本申请一示例性实施例提供的波束宽度关系示意图。
图4c是本申请另一示例性实施例提供的侧链路资源池的空域资源的配置示意图。
图5是本申请一示例性实施例提供的侧链路通信方法的流程示意图。
图6a是本申请一示例性实施例提供的侧链路通信场景示意图。
图6b是本申请另一示例性实施例提供的侧链路通信场景示意图。
图6c是本申请另一示例性实施例提供的侧链路通信场景示意图。
图6d是本申请一示例性实施例提供的第一参考坐标的示意图。
图6e是本申请另一示例性实施例提供的侧链路通信场景示意图。
图6f是本申请一示例性实施例提供的侧链路通信方法的交互流程示意图。
图6g是本申请另一示例性实施例提供的侧链路通信方法的交互流程示意图。
图6h是本申请另一示例性实施例提供的侧链路通信方法的交互流程示 意图。
图7是本申请一示例性实施例提供的侧链路通信装置的结构示意图。
图8是本申请另一示例性实施例提供的侧链路通信装置的结构示意图。
图9是本申请另一示例性实施例提供的侧链路通信装置的结构示意图。
图10是本申请另一示例性实施例提供的侧链路通信装置的结构示意图。
图11是本申请一示例性实施例提供的终端的结构示意图。
图12是本申请一示例性实施例提供的网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier  Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6 th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的结构示意图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备，可穿戴式设备包括：智能手表、手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
其中，在SL通信场景中，在TX UE与RX UE之间基于组播方式或广播方式进行通信时，对于如何管理或对齐TX UE和RX UE的波束，本申请提供一种侧链路通信方法、终端及网络侧设备。下面结合附图，并通过一些实 施例及其应用场景对此技术方案进行详细地说明。
需要说明的是，根据SL通信场景的不同，本申请提及的第一终端、第二终端、第三终端在SL通信场景中的角色可以不同，例如，所述第一终端可以作为TX UE或RX UE或同步参考UE(SyncRef UE)，所述第二终端也可作为TX UE或RX UE或SyncRef UE……。为便于理解，本申请实施例中，所述第一终端作为TX UE，第二终端作为RX UE，第三终端作为SyncRef UE。
如图2所示，为本申请一示例性实施例提供的侧链路通信方法200的流程示意图，该方法200可以但不限于由终端(如第一终端(TX UE))执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法200至少可以包括如下步骤。
S210，第一终端从至少一个侧链路资源池中选取目标资源池。
其中，每个所述侧链路资源池中至少配置有空域资源，由此，相对于相关技术中由于资源池中未配置空域资源(如参考波束方位(Reference Beam Direction))，而导致RX UE无法对齐TX UE的发送波束的问题，本申请可基于空域资源，实现TX UE和RX UE在侧链路通信过程中的波束对齐。
一种实现方式中，每个所述侧链路资源池中还可配置有时域资源和频域资源，其中，对于所述第一终端，所述空域资源、所述时域资源和所述频域资源相互对齐且具有一致性。其中，所述时域资源可以包括时隙(slot)，所述频域资源可以包括频域子信道(Sub-channel)。
也就是，相对相关技术，本实施例中引入了三个维度的资源，即时域资源、频域资源、空域资源，从而使得在侧链路通信过程中，实现TX UE与RX UE之间的波束对齐。
可选地，所述至少一个侧链路资源池可以通过高层信令(如无线资源控制(Radio Resource Control，RRC)信令)配置实现、协议约定或网络侧配置实现。
S220，所述第一终端基于所述目标资源池传输目标数据。
本实施例中，第一终端通过配置有空域资源的目标资源池实现侧链路通信，能够实现侧链路通信过程中的波束对齐，避免相关技术中存在的TX UE需要重复发送目标数据等而导致的资源利用率低的问题。
如图3所示，为本申请一示例性实施例提供的侧链路通信方法300的流程示意图，该方法300可以但不限于由终端(如第一终端(TX UE))执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法300至少可以包括如下步骤。
S310，第一终端从至少一个侧链路资源池中选取目标资源池。
其中，每个所述侧链路资源池中至少配置有空域资源。
可以理解，S310的实现过程除了除可参照前述方法实施例200中的相关描述之外，作为一种可能的实现方式，所述空域资源可以包括波束宽度(Beamwidth)、波束偏移量(Beam Offset)、波束数量、波束索引、参考波束方位(Reference Beam Direction)中的至少一项。
所述波束偏移量用于更加有效的增加到达角(Direction of Arrival，DOA)的方向粒度。可选地，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
Figure PCTCN2022124473-appb-000001
Figure PCTCN2022124473-appb-000002
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000003
表示波束宽度，l表示所述侧链路资源池的次序。例如，请结合参阅图4a，侧链路资源池(SL-Resource Pool)-1中(左图)的波束偏移被配置为0，而侧链路资源池-2中(右图)的波束偏移量被配置为
Figure PCTCN2022124473-appb-000004
请再次参阅图4a，所述侧链路资源池1和2中的波束数量
Figure PCTCN2022124473-appb-000005
波束索引k可以是
Figure PCTCN2022124473-appb-000006
可选地，波束数量
Figure PCTCN2022124473-appb-000007
和波束宽度
Figure PCTCN2022124473-appb-000008
的关系可以为
Figure PCTCN2022124473-appb-000009
其中，
Figure PCTCN2022124473-appb-000010
是x的上限函数(Ceiling Function)。
在所述空域资源中配置有所述参考波束方位和所述波束索引时，根据参考波束方位(如绝对参考波束方位或相对参考波束方位等)，所述侧链路资源 池中的每个波束可通过所述波束索引进行查找。需要注意，所述参考波束方位可以与所述侧链路资源池同时配置、但所述参考波束方位不属于所述侧链路资源池中的信息。
示例性的，假设所述侧链路资源池包括时域资源、频域资源和空域资源、且时域资源包括时隙、频域资源包括子信道、空域资源包括波束带宽，那么，第l个侧链路资源池可以表示为子信道
Figure PCTCN2022124473-appb-000011
时隙
Figure PCTCN2022124473-appb-000012
和波束宽度
Figure PCTCN2022124473-appb-000013
相应的，所述第一终端在利用侧链路控制信息(Sidelink Control Information，SCI)向第二终端指示目标资源池的相关信息时，可以利用三个控制信令相关的指示域(Field，也即领域)来完成，即(频域)子信道
Figure PCTCN2022124473-appb-000014
(时域)时隙
Figure PCTCN2022124473-appb-000015
和(空域)波束索引k。
作为另一种可能的实现方式，所述终端在选取所述目标资源池时，为了降低相邻波束间的干扰，保证FR2侧链路通信性能，所述第一终端的最大波束宽度(也可以理解为所述终端能够实现的最大波束宽度)小于或等于所述目标资源池中的波束宽度。例如，请参阅图4b，拥有波束宽度θ t的第一终端可以选择第l个侧链路资源池(即目标资源池)来发送目标数据，其中第l个侧链路资源池被配置的波束宽度
Figure PCTCN2022124473-appb-000016
不能小于波束宽度θ t。
可选地，所述第一终端能够实现的波束宽度θ t可由所述第一终端根据自身的可行性能力(如所述第一终端所支持的天线数)确定。
需注意，本实施例中所述的侧链路资源池可以为但不限于FR2中的资源池。
基于前述对侧链路资源池的描述，下面进一步结合图4c对侧链路资源池的配置进行说明。
如图4c所示，侧链路资源池-1(左图)被配置有8个波束，即，
Figure PCTCN2022124473-appb-000017
其中，侧链路资源池的参数可以被表示为：
Figure PCTCN2022124473-appb-000018
B 1(k)，其中，
Figure PCTCN2022124473-appb-000019
是资源池-1相关的子信道、时隙和波束宽度，
Figure PCTCN2022124473-appb-000020
是资源池-1相关 的波束偏移量，B 1(k)是资源池-1相关的波束方位角，k＝0,1,…,7，和
Figure PCTCN2022124473-appb-000021
再次参阅图4c，侧链路资源池2(右图)被配置有16个波束，即，
Figure PCTCN2022124473-appb-000022
其中，侧链路资源池的参数可以被表示为，
Figure PCTCN2022124473-appb-000023
其中
Figure PCTCN2022124473-appb-000024
Figure PCTCN2022124473-appb-000025
是资源池-2相关的子信道、时隙和波束宽度，
Figure PCTCN2022124473-appb-000026
是资源池-2相关的波束偏移量，B 2(k)是资源池-2相关的波束方位角，k＝0,1,…,15，和
Figure PCTCN2022124473-appb-000027
S320，所述第一终端基于所述目标资源池传输目标数据。
其中，S320的实现过程可参照方法实施例200中的实现过程，为避免重复，在此不再赘述。
本实施例中，能够进一步提高侧链路通信过程中的波束对齐的精确性，进而提高侧链路通信的可靠性。
如图5所示，为本申请一示例性实施例提供的侧链路通信方法500的流程示意图，该方法500可以但不限于由终端(如第一终端(TX UE))执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法500至少可以包括如下步骤。
S510，第一终端从至少一个侧链路资源池中选取目标资源池。
其中，每个所述侧链路资源池中至少配置有空域资源。
可以理解，S510的实现过程除了可参照前述方法实施例200和/或300中的相关描述之外，作为一种可能的实现方式，S510的实现过程可以包括图5中所示的S511，内容如下。
S511，所述第一终端根据第一信息从至少一个所述侧链路资源池中选取目标资源池。
其中，根据SL通信场景的不同，所述第一信息可以包括绝对参考波束方位、相对参考波束方位、第一指示信号中的至少一项，所述第一指示信号用于指示第一参考波束方位，以用于所述第一终端确定目标资源池。
基于此，下面分别结合不同的第一信息，对所述S511的实现过程进行说 明，内容如下。
实现方式1
如果所述第一信息包括绝对参考波束方位，那么可以理解的是，首先可针对配置的所有侧链路资源池选择一个点作为第一参考坐标，同时制定一个参考方向，使得每个侧链路资源池配置的参考波束方位可以按照其制定的参考方向确定，也就是说，所述第一参考坐标是基于所述至少一个侧链路资源池确定，且所述至少一个侧链路资源池对应一个绝对参考波束方位。
在此情况下，作为一种可能的实现方式，所述绝对参考波束方位的获取过程可以包括：所述第一终端可以根据自身的第一位置坐标和第一参考坐标，确定所述第一参考坐标所在的第一波束方位，进而根据所述第一参考坐标所在的第一波束方位，确定所述绝对参考波束方位；其中，所述第一位置坐标包括所述第一终端的位置坐标(如地理坐标)。
可选的，根据SL通信应用场景的不同，前述的第一参考坐标和参考方向可以是两维度或三维度的坐标。
一种实现方式中，请结合参阅图6a，假设所述第一参考坐标为两维的坐标(x 0,y 0)，参考波束方位为θ R，那么，所述TX UE(即第一终端)可根据自身的第一位置坐标(x t,y t)和所述第一参考坐标(x 0,y 0)计算出所述第一参考坐标所在第一波束方位θ，进而根据所述第一波束方位θ确定所述绝对参考波束方位θ R。
可选地，如果所述侧链路资源池中还包括波束偏移量
Figure PCTCN2022124473-appb-000028
那么，所述第一终端可以把
Figure PCTCN2022124473-appb-000029
的方向作为第l个侧链路资源池的波束索引0的绝对参考波束方位。
另一种实现方式中，如果所述第一参考坐标为三维空间坐标(x 0,y 0,z 0)，所述第一终端确定绝对参考波束方位θ R的过程与前述基于二维空间坐标确定绝对参考波束方位的规程完全一样。
可以理解，假设第一终端的第一位置坐标为(x t,y t,z t)，而第一参考坐标为(x 0,y 0,z 0)。其中，x t可根据WGS84模型、UE当前位置和地理坐标(0,0,0)之间的经度(Longitude)距离确定，以米表示，在这种情况下，第一参考坐标x 0＝0。y t可根据WGS84模型、UE当前位置和地理坐标(0,0,0)之间的纬度(Latitude)距离，以米表示，在这种情况下，第一参考坐标y 0＝0。z t可根据WGS84模型、UE当前位置和地理坐标(0,0,0)之间的标高(Elevation)距离确定，以米表示。在这种情况下，第一参考坐标z 0＝0。
值得注意的是，如图6b所示，WGS-84坐标系的原点在地球质心，Z轴指向BIH1984.0定义的协定地球极(CTP)方向，X轴指向BIH1984.0的零度子午面和CTP赤道的交点，Y轴和Z、X轴构成右手坐标系，也即是，它是一个地固坐标系。
可选地，绝对参考波束方位θ R可以被定为X方向，也可以被定为Y方向，也可以被定为Z方向。值得注意的是，绝对参考波束方位θ R不能按侧链路资源池配置，相反，所有的资源池必须参考同样的绝对参考波束方位。
另外，在本实施例中，为了方便起见，绝对参考波束方位θ R可以被设置为0°
进一步，基于对前述绝对参考波束方位的描述，在所述目标数据对应的发送波束方位为第二波束方位的情况下，所述第一终端根据所述第二波束方位、所述绝对参考波束方位、所述目标资源池确定第三波束方位，所述第一终端基于所述第三波束方位发送所述目标数据。也就是说，如果所述第一终端向方位θ t发送目标数据，那么，所述第一终端针对目标资源池(如第l个侧链路资源池)找到最佳的发送波束方位，即第三波束方位，并基于第三波束方位发送所述目标数据。
可选地，所述第一终端在根据所述第二波束方位、所述绝对参考波束方位、所述目标资源池确定第三波束方位时，可参考式
Figure PCTCN2022124473-appb-000030
计算所述第三波束方位，其中，k opt表示所述第三波束方位的波束索引，θ t表示所述第二波束方位，θ R表示所述绝对参考波束方位，
Figure PCTCN2022124473-appb-000031
表示所述目标资源池中的波束偏移量，
Figure PCTCN2022124473-appb-000032
所述目标资源池中的波束宽度，
Figure PCTCN2022124473-appb-000033
当然，所述第一终端在基于目标资源池传输目标数据之前，还可发送第二SCI给第二终端，所述第二SCI中可以携带有目标资源池的时域资源(如时隙信息)、频域资源(如子信道信息)、空域资源(如波束索引k)等信息，使得该第二终端可根据该第二SCI中携带的目标资源池的信息以及绝对参考波束方位θ R确定接收波束方位。可以理解，与所述第一终端类似，所述第二终端中被配置有至少一个侧链路资源池以及绝对参考波束方位。
例如，所述第二终端在获知所述第一终端的第一位置坐标后，可根据自身的位置坐标计算出波束索引k所指示的接收波束方位，再根据自己的接收状态判断是否在被指示的接收波束方位、时隙中接收目标数据，如果所述第二终端决定接收波束索引k所指示的目标数据，那么，所述第二终端匹配最佳的接收波束方位，并接收和解码所述目标数据。
可以理解，所述第二终端在判断是否接收目标数据时，除了可根据自己的接收状态确定，还可根据第二SCI中被指示的目标数据的优先级(也即优先度)、其他与波束赋形相关的信息等，综合判断是否在被指示的空域资源、时域资源或频域资源上接收所述目标数据。
一种实现方式，本申请中所提及的第一终端的第一位置坐标(包括位置坐标和/或方位)以及第二终端的位置坐标、第三终端的地理位置等，均可通过自身配置的位置检测装置获取。例如，所述位置检测装置至少可以包括陀螺仪(Gyroscope)、GPS定位装置、北斗定位装置等。其中，所述陀螺仪可利用角动量守恒原理来感测与维持其自身的方位，进而使得终端能够准确把握自身的天线指向。
本实现方式1中，通过绝对参考波束方位进行目标资源池的确定，进而基于目标资源池传输目标数据，其实现简单、且波束方位确定准确，能够进一步确保侧链路通信的可靠性。
实现方式2
如果所述第一信息包括相对参考波束方位，那么，所述第一终端、所述第二终端无需时刻把握自己的天线指向，而是可以通过网络侧设备(如gNB等)、终端与终端间的关系(即相对参考波束方位)进行目标资源池的确定，从而提高侧链路通信的灵活性。
可以理解，当所述第一终端同时支持绝对参考波束方位和相对参考波束方位的情况下，网络侧设备可以根据所述第一终端的第一能力确定所述第一终端是基于绝对参考波束方位还是相对参考波束方位确定目标资源池。也就是，所述网络侧设备可以根据终端的能力灵活的配置资源池的参考波束方位(基于绝对参考波束方位还是相对参考波束方位)。
在此情况下，所述网络侧设备可首先根据所述第一终端的第一能力确定第二指示信号，进而发送所述第二指示信号给所述第一终端，以指示所述第一终端是根据所述绝对参考波束方位还是所述相对参考波束方位从至少一个所述侧链路资源池中选取目标资源池。其中，所述第一能力用于表征所述第一终端是否支持第一位置坐标的获取，所述第一位置坐标包括所述第一终端的位置坐标和/或所述第一终端的方位。
基于此，考虑到NR侧链路的同步可以通过网络侧设备(如gNB)或通过全球导航卫星系统(Global Navigation Satellite System，GNSS)或通过第三终端(SyncRef UE)，同步信号(如SSB或CSI-RS等)可以由SyncRef UE在侧链路中传输。如终端可以根据gNB或GNSS的时钟进行同步，这种同步进程相应比较简单。如果UE只能根据SyncRef UE的时钟进行同步，这种同步进程就相对比较复杂。
例如，UE一旦检测到侧链路同步信号(SLSS)并识别出SyncRef UE发 送的侧链路主同步信号(Sidelink-Primary Synchronisation Signal，S-PSS)和侧链路辅同步信号(Sidelink-Secondary Synchronisation Signal,S-SSS)，便可以确定SyncRef UE的SLSS标识(ID)。因此，S-SSB内的SLSS传输也传达了SyncRef UE的SLSS ID。作为NR Uu链路中的SSB结构，S-SSB结构支持每个S-SSB使用不同波束的传输。如，使用波束扫描的方法，如果是单播通信，UE间可以相互协商然后对齐波束的方向。但是在组播通信和广播通信中，SyncRef UE不知道Rx UE的接收波束情况，因此如何通过同步进程来决定相对参考波束是决定FR2侧链路通信的关键。值得注意的是，在同步过程中，UE间还无法建立其相关单播通信链路。
基于此，所述相对参考波束方位的确定有以下(11)和(12)两种场景。第一种场景是，UE通过网络侧设备来决定相对参考波束方位。第二种场景是，UE通过自身和SyncRef UE方位的关系来决定所述相对参考波束方位。下面分别对两种场景下的相对参考波束方位确定过程进行说明。
(11)在所述第一终端处于网络侧设备的网络覆盖范围内的情况下，所述第一终端根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位。也就是说，当所述第一终端处于网络覆盖范围内时，可根据网络侧设备发送的波束方位和波束索引确定所述相对参考波束。
例如，网络侧设备(如gNB)可根据自身的地理位置确定所有FR2相关的侧链路资源池的相对波束参考方向，并在FR2中周期性地发送同步信号，如SSB，所述第一终端根据自身的第一位置坐标(如地理位置)和gNB的地理位置、gNB发送的波束方位和波束索引推导出相关侧链路资源池的相对波束参考方向，最后可以使用所选的目标资源池发送物理副链路控制信道(Physical SideLink Control Channel，PSCCH)/物理副链路共享信道(Physical SideLink Shared Channel，PSSCH)信号，以及第二终端可以使用所选的目标资源池接收PSCCH/PSSCH信号。
值得注意的是，为了对齐所有同步UE的发射波束，所述网络侧设备在 发送第一DCI时，该第一DCI中需要包括第一发射波束的传输配置指示(Transmission Configuration Indicator，TCI)以及网络侧设备的地理位置，使得第二终端可基于TCI和网络侧设备的地理位置推导出相对参考波束方位。
也就是，所述第一终端可接收所述网络侧设备发送的第一DCI，所述第一DCI中至少包括第一TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定。所述第一终端根据所述第一发射波束的波束方位和波束索引、第一位置坐标以及所述网络侧设备的地理位置，确定所述相对参考波束方位，所述第一位置坐标至少包括所述第一终端的位置坐标。
示例性的，如图6c所示，gNB通过Uu链路的发送SSB和Tx UE(第一终端)进行波束对齐。Tx UE根据波束索引k 1，同时通过gNB和自身的地理位置决定相对参考波束方位。Tx UE决定FR1信令资源和FR2数据包发送资源(包括侧链路资源池索引m 2和发送波束索引k 2)，Rx UE(第二终端)根据FR1上接收到的TX UE发送的SCI控制信令，决定是否在FR2上接收非控制信令，如数据包。
(12)在所述第一终端未处于网络覆盖范围内的情况下，所述第一终端根据第三终端的波束方位和波束索引确定所述相对参考波束方位，所述第三终端为所述第一终端的同步参考终端。也就是说，当所述第一终端不在网络覆盖范围内时，所述相对参考波束方位可以由第三终端(SyncRef UE)自身确定。
例如，SyncRef UE确定所有FR2相关资源池的相对波束参考方向，并在FR2中周期性地发送同步信号，如SSB。此后，SyncRef UE使用所选的侧链路资源池通过PSCCH/PSSCH来传输数据包。第一终端根据自身的地理位置和SyncRef UE的地理位置推导出相关资源池的波束参考方位。最后第一终端可以使用所选的目标资源池发送PSCCH/PSSCH信号，以及第二终端可以使 用所选的目标资源池接收PSCCH/PSSCH信号。
值得注意的是，为了对齐所有同步UE的发射波束，所述SyncRef UE在发送第一SCI时，该第一SCI中至少需要包括所述SyncRef UE的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI；所述第一终端根据所述第二发射波束的波束方位和波束索引、第一位置坐标以及所述第三终端的地理位置，确定所述相对参考波束方位。
示例性的，如图6d所示，SyncRef UE通过发送同步信号，如SSB，所有在SyncRef UE附近的UE(如TX UE)在波束方向k 1通过接收SSB获取相对参考波束方位的信息，进而决定FR1信令资源和FR2数据包发送资源(包括发送波束索引k 2)，Rx UE根据接收到TX UE发送的第一SCI控制信令，决定是否在FR2上接收目标数据，如数据包。
值得注意的是，由于SyncRef UE的移动和旋转，所述相对参考波束方位会逐渐变化，因此，通过SyncRef UE同步的UE需要跟随SyncRef UE的移动和旋转，相应地调整相对参考波束方位。
当然，与前述绝对参考波束方位对应，基于对前述两种场景下的相对参考波束方式的描述，在所述目标数据对应的发送波束方位为第二波束方位的情况下，所述第一终端根据所述第二波束方位、所述相对参考波束方位、所述目标资源池确定第三波束方位，所述第一终端基于所述第三波束方位发送所述目标数据。
可选地，所述第一终端可根据式
Figure PCTCN2022124473-appb-000034
确定第三波束方位，其中，k opt表示所述第三波束方位的波束索引，θ t表示所述第二波束方位，θ R表示所述相对参考波束方位或所述相对参考波束方位，
Figure PCTCN2022124473-appb-000035
表示所述目标资源池中的波束偏移量，
Figure PCTCN2022124473-appb-000036
所述目标资源池中的波束宽度，
Figure PCTCN2022124473-appb-000037
基于对前述相对参考波束的描述可知，在覆盖范围内的UE可通过接收gNB发送的同步信号(如SSB或CSI-RS信号)、gNB的地理坐标、自身的 第一位置坐标来确定相对参考波束。基于此，一般情况下，考虑到安装在gNB的天线阵是固定的，所有gNB可以决定相对参考波束方位，且gNB根据参考波束方位决定发送波束方位，并通过发送波束索引的方法通知接收UE，如TXUE、RX UE。Rx UE接收SSB或CSI-RS信号并决定相对参考波束方位。如果接收UE判断自己是SyncRef UE，SyncRef UE也会发送SSB信号或CSI-RS信号，Rx UE接收S-SSB或CSI-RS信号并决定参考波束方位。
例如，如图6e所示，gNB发送SSB或CSI-RS信号，Tx UE1和Rx UE1接收SSB或CSI-RS信号，并根据gNB的地理位置、以及自身的第一位置坐标、接收到的波束索引，各自决定自己的相对参考波束方位。
可选地，如果由于Tx UE1从gNB接收到的参考信号接收功率(ReferenceSignal Receiving Power，RSRP)低于设定的阈值，则Tx UE1成为SyncRef UE并发送S-SSB或CSI-RS信号。或者，Rx UE2接收到SyncRef UE发送的S-SSB或CSI-RS信号，根据SyncRef UE和自己的地理位置计算出相对参考波束方位。
本实现方式2中，通过相对参考波束方位进行目标资源池的确定，进而基于目标资源池传输目标数据，不仅能够进一步确保侧链路通信的可靠性，还可以提高侧链路通信的灵活性。
实现方式3
如果所述第一信息包括第一指示信号，那么，所述第一终端在根据第一指示信号确定目标资源池时，需要根据第一终端自身选择的频谱和是否在网络侧设备(如gNB)的覆盖(Coverage)范围内而定。基于此，本实现方式中通过两种场景进行说明，其中，场景1是TX UE(即第一终端)位于gNB的覆盖范围内、且仅在FR2上发送控制信令和非控制信令(如数据包)。场景2是TX UE可以位于gNB的覆盖范围内也可以位于gNB的覆盖范围外，且其使用FR1发送控制信令、使用FR2发送非控制信令。下面分别对两种场景下的目标资源池的确定方过程进行说明。
(21)由于波束赋形后的控制信令的波束方位存在局限性，Rx UE必须对控制信令进行盲检测，只有当Rx UE和Tx UE完成对齐的情况下，Rx UE才有机会获取控制信令中包含的波束方位信息，因此，在所述第一终端在FR2频段上发送控制信令和/或非控制信令、且处于网络覆盖范围内的情况下，如果利用TCI来指示Tx UE和Rx UE的准共址(QCL)关系的成功率不高，且TX UE很难通过自身的控制信令预先通知发送波束方位信息给RX UE。
对此，Tx UE通过Mode-1的方法从gNB获取发送资源信息，即，gNB发送第二DCI给其网络覆盖范围内的UE，如第一终端、第二终端，其中第二DCI包括预约的发送资源信息，如发送波束方位信息(用TCI状态来表示)等。相应的，所述第一终端可根据所述第二DCI中包括的发送资源信息从至少一个侧链路资源池中确定所述目标资源池。
一种实现方式中，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。也就是说，所述第二DCI是新引入的DCI格式。
另外，所述第二DCI可通过第一无线网络临时标识(Radio Network Temporary Identifier，RNTI，如SL-FR2-RNTI)进行加扰，且所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端，也就是说，多个终端均可通过第一RNTI对所述第二DCI解扰。
此外，作为另一种实现方式，所述第二DCI中还可包括所述第一终端的终端源层二标识(Source L2-ID)；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
也就是说，为了让其他Rx UE也能检测到第二DCI指示的发送资源信息， 所述第二DCI还可包含Tx UE的UE源L2-ID(Source L2-ID)，从而使得拥有相同源L2-ID的Tx UE能够判断使用由第二DCI预约的发送资源来发送侧链路数据，而其他UE能够判断由第二DCI预约的发送资源信息。
示例性的，如图6f所示，为本申请一示例性实施例提供的侧链路通信交互流程示意图，内容如下。
S611，gNB通过第二RRC为TX UE和RXUE配置侧链路资源池信息，其中包括参考波束信息。
S612，gNB发送第二DCI给TX UE和RX UE，该第二DCI中包括第一RNTI、TX UE源ID以及相关的TCI状态信息。
S613，TX UE、RXUE根据第二RNTI接收第二DCI，并获取波发送资源信息。
S614，TX UE根据发送资源信息从至少一个侧链路资源池中确定所述目标资源池，如发送资源和发送波束方位等。
S615，TX UE根据目标资源池(也即TCI状态)发送目标数据。
S616，RX UE进行波束对其并接收所述目标数据。
可以理解，本实现方式中给出的侧链路通信交互流程可以包括但不限于前述S611至S616。另外，关于S611至S616的实现过程可以参照前述方法实施例的相关描述，为避免重复，在此不再赘述。
(22)在所述第一终端在FR1频段上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端和第二终端处于网络覆盖范围内的情况下，所述第一指示信号包括第一RRC信令，所述第一RRC信令中至少包括第一参考波束方位。那么，所述第一终端可根据第一位置坐标以及所述第一RRC中携带的第一参考波束方位确定所述目标资源池，如发送波束方位，所述第二终端可根据自身的位置坐标以及所述第一RRC中携带的第一参考波束方位确定所述目标资源池。
也就说，在此场景下，如果TX UE和RX UE均在gNB的覆盖范围内， gNB可通过第一RRC信令配置侧链路资源池的相关信息，如第一参考波束方位等。Tx UE通过第一参考波束方位和自身的第一位置坐标决定发送波束方位，Rx UE通过第一参考波束方位和自身的位置坐标决定接收波束方位。
具体地，Tx UE通过FR1发送SCI控制信令，其中包括FR2相关频域资源和时域资源，也包括FR2相关的波束方位信息。由于Tx UE可以通过FR1全向波束发送信息，因此每个Rx UE都有机会接收到通过FR1发送的SCI控制信令。Tx UE通过FR2发送数据包，而Rx UE根据自身的接收状态决定是否接收Tx UE发来的数据包。如果Rx UE决定接收Tx UE发来的目标数据，Rx UE将对齐Tx UE的发射波束方位，并接收解码目标数据。
示例性的，如图6g所示，为本申请一示例性实施例提供的侧链路通信交互流程示意图，内容如下。
S621，gNB通过第二RRC为TX UE和RXUE配置侧链路资源池信息，其中包括参考波束信息。
S622，TX UE通过FR1发送第二SCI给RX UE，该第二SCI中包括目标资源池的相关信息。
S623，RX UE通过FR1接收第二SCI控制信令，并决定是否接收TX UE发送的目标数据。
S624，TX UE根据目标资源池(也即TCI状态)发送目标数据。
S625，RX UE进行波束对其并接收所述目标数据。
可以理解，本实现方式中给出的侧链路通信交互流程可以包括但不限于前述S621至S625。另外，关于S621至S625的实现过程可以参照前述方法实施例的相关描述，为避免重复，在此不再赘述。
(23)与前述(22)不同，在所述第一终端在FR1频段上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端和第二终端未处于网络覆盖范围内的情况下，所述第一指示信号包括第三终端发送的同步信号(如SSB)，所述第一终端根据第一接收波束的波束方位和波束索引，确定第二参考波束 方位，以及根据所述第二参考波束方位以及所述第一位置坐标确定所述目标资源池，所述第一接收波束用于接收所述同步信号。
也就是说，如果接收和发送UE在gNB的覆盖范围外，UE通过接收SyncRef UE(同步参考UE)发送的同步信号，如SSB，并根据SyncRef UE和自身的地理位置决定发送和接收的相对参考波束方位。
具体地，当Tx UE获取到相对参考波束方位信的息后，Tx UE可以通过FR1发送第二SCI控制信令给RX UE，第二SCI控制信令中包括FR2相关频域和时域资源，也包括FR2相关波束方位信息。Tx UE在FR2上发送数据包，而Rx UE根据自身的接收状态决定是否接收Tx UE发来的数据包。如果Rx UE决定接收Tx UE发来的数据包，Rx UE将对齐Tx UE的发射波束方位，并接收解码目标数据。
示例性的，如图6h所示，为本申请一示例性实施例提供的侧链路通信交互流程示意图，内容如下。
S631，SyncRef UE发送SSB信号。
S632，TX UE和RX UE接收SSB信号，并根据SSB信号对应的第二接收波束的波束方位以及相关索引确定相对参考波束方位。
S633，TX UE通过FR1发送第二SCI给RX UE。
S634，RX UE通过FR1接收第二SCI控制信令，并决定是否接收TX UE发送的目标数据。
S635，TX UE通过FR2发送目标数据。
S636，RX UE通过FR2接收所述目标数据。
可以理解，本实现方式中给出的侧链路通信交互流程可以包括但不限于前述S631至S636。另外，关于S631至S636的实现过程可以参照前述方法实施例的相关描述，为避免重复，在此不再赘述。
S520，所述第一终端基于所述目标资源池传输目标数据。
在本实现方式中，根据应用场景的不同，提供三种不同的目标资源池的 确定方法，由此能够进一步提高侧链路通信的灵活性。
本申请一示例性实施例还提供一种侧链路通信方法，该方法可以但不限于由终端(如第二终端(RX UE))执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，根据应用场景的不同，所述方法至少可以包括如下步骤中的任一项。
(31)第二终端接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据，其中，所述目标资源池的空域资源的信息携带于所述第二SCI中；
(32)所述第二终端接收网络侧设备发送的第二下行控制信息DCI，以及根据所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
一种可能的实现方式，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
一种可能的实现方式，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
Figure PCTCN2022124473-appb-000038
其中，
Figure PCTCN2022124473-appb-000039
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000040
表示波束宽度，
Figure PCTCN2022124473-appb-000041
表示波束数量，l表示所述侧链路资源池的次序。
一种可能的实现方式，接收所述第一终端发送的目标数据的步骤之前，所述方法还包括：所述第二终端根据所述目标资源池的空域资源的信息，将接收波束方位与所述第一终端的发送波束方位对齐；或者，所述第二终端根据所述第二DCI中包括的发送波束方位，将接收波束方位与所述第一终端的发送波束方位对齐。
一种可能的实现方式，所述第二DCI中还包括终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过 所述第二DCI预约的发送资源信息进行侧链路数据的发送。
一种可能的实现方式，所述第二DCI专用于向所述第一终端和/或第二终端指示所述目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息以及发送波束方位。
一种可能的实现方式，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
可以理解，本实施例中给出的给实现方式的实现过程可参照前述方法实施例200-500中的相关描述，并达到相应或相同的技术效果，为避免重复，本实施例在此不再赘述。
本申请一示例性实施例还提供一种侧链路通信方法，该方法可以但不限于由网络侧设备(如gNB)执行，具体可由安装于网络侧设备中的硬件和/或软件执行。本实施例中，根据应用场景的不同，所述方法至少可以包括如下步骤中的任一项。
(41)网络侧设备发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定。
(42)网络侧设备发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端。
可以理解，多个所述第四终端是指位于所述网络侧设备覆盖范围内的至少部分终端。
(43)网络侧设备发送第一RRC信令，所述第一RRC信令中携带有第 一参考波束方位。
(44)网络侧设备发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
一种实现方式中，所述第二DCI中还包括所述第一终端的终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
一种实现方式中，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。
一种实现方式中，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI是专用于所述第二DCI加扰的RNTI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
可以理解，本实施例中给出的给实现方式的实现过程可参照前述方法实施例200-500中的相关描述，并达到相应或相同的技术效果，为避免重复，本实施例在此不再赘述。
本申请一示例性实施例还提供一种侧链路通信方法，该方法可以但不限于由终端(如第三终端)执行，具体可由安装于网络侧设备中的硬件和/或软件执行。本实施例中，根据应用场景的不同，所述方法至少可以包括如下步骤中的任一项。
(51)第三终端发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；其中，所述第三终端为所述第一终端的同步参考终端。
(52)第三终端发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位。
可以理解，本实施例中给出的给实现方式的实现过程可参照前述方法实施例200-500中的相关描述，并达到相应或相同的技术效果，为避免重复，本实施例在此不再赘述。
需要说明的是，本申请实施例提供的侧链路通信方法，执行主体可以为侧链路通信装置，或者，该侧链路通信装置中的用于执行侧链路通信方法的控制模块。本申请实施例中以侧链路通信装置执行侧链路通信方法为例，说明本申请实施例提供的侧链路通信装置。
如图7所示，为本申请一示例性实施例提供的侧链路通信装置700的结构示意图，该装置700可以包括第一获取模块710，用于从至少一个侧链路资源池中选取目标资源池；第一传输模块720，用于所述第一终端基于所述目标资源池传输目标数据；其中，每个所述侧链路资源池中至少配置有空域资源。
可选的，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
可选的，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
Figure PCTCN2022124473-appb-000042
其中，
Figure PCTCN2022124473-appb-000043
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000044
表示波束宽度，
Figure PCTCN2022124473-appb-000045
表示波束数量，l表示所述侧链路资源池的次序。
可选的，每个所述侧链路资源池中还配置有时域资源和频域资源，其中，对于所述第一终端，所述空域资源、所述时域资源和所述频域资源相互对齐且具有一致性。
可选的，在所述空域资源包括所述波束宽度的情况下，所述第一终端的最大波束宽度小于或等于所述目标资源池中的波束宽度。
可选的，所述第一传输模块720从至少一个侧链路资源池中选取目标资 源池的步骤，包括：根据第一信息从至少一个所述侧链路资源池中选取目标资源池；其中，所述第一信息包括绝对参考波束方位、相对参考波束方位、第一指示信号中的至少一项，所述第一指示信号用于指示第一参考波束方位。
可选的，在所述第一信息包括绝对参考波束方位的情况下，所述绝对参考波束方位的获取过程，包括：所述第一终端根据第一位置坐标和第一参考坐标，确定所述第一参考坐标所在的第一波束方位；所述第一终端根据所述第一参考坐标所在的第一波束方位，确定所述绝对参考波束方位；其中，所述第一位置坐标至少包括所述第一终端的位置坐标，所述第一参考坐标是基于所述至少一个侧链路资源池确定。
可选的，在所述第一信息包括相对参考波束方位的情况下，所述相对参考波束方位的获取过程包括以下至少一项：在所述第一终端处于网络覆盖范围内的情况下，所述第一终端根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位；在所述第一终端未处于网络覆盖范围内的情况下，所述第一终端根据第三终端的波束方位和波束索引确定所述相对参考波束方位，所述第三终端为所述第一终端的同步参考终端。
可选的，所述第一传输模块720根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：接收所述网络侧设备发送的第一下行控制信息DCI，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；根据所述第一发射波束的波束方位和波束索引、第一位置坐标以及所述网络侧设备的地理位置，确定所述相对参考波束方位，所述第一位置坐标至少包括所述第一终端的位置坐标。
可选的，所述第一传输模块720根据第三终端的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：接收所述第三终端发送的第一侧链路控制信息SCI，所述第一SCI至少包括所述第三终端的地理位置以及第二 TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI；根据所述第二发射波束的波束方位和波束索引、第一位置坐标以及所述第三终端的地理位置，确定所述相对参考波束方位。
可选的，所述第一传输模块720用于以下任一项：在所述目标数据对应的发送波束方位为第二波束方位的情况下，根据所述第二波束方位、所述绝对参考波束方位、所述目标资源池确定第三波束方位，或者，根据所述第二波束方位、所述相对参考波束方位、所述目标资源池确定第三波束方位；基于所述第三波束方位发送所述目标数据。
可选地，：
Figure PCTCN2022124473-appb-000046
其中，k opt表示所述第三波束方位的波束索引，θ t表示所述第二波束方位，θ R表示所述绝对参考波束方位或所述相对参考波束方位，
Figure PCTCN2022124473-appb-000047
表示所述目标资源池中的波束偏移量，
Figure PCTCN2022124473-appb-000048
所述目标资源池中的波束宽度，
Figure PCTCN2022124473-appb-000049
可选的，在所述第一信息包括所述绝对参考波束方位和所述相对参考波束方位的情况下，所述第一传输模块720根据所述网络侧设备发送的第二指示信号确定是根据所述绝对参考波束方位还是所述相对参考波束方位从至少一个所述侧链路资源池中选取目标资源池；其中，所述第二指示信号是所述网络侧设备根据第一能力确定，所述第一能力用于表征所述第一终端是否支持第一位置坐标的获取，所述第一位置坐标包括所述第一终端的位置坐标和/或所述第一终端的方位。
可选的，所述第一位置坐标是所述第一终端通过设置于自身的位置检测装置获取，所述位置检测装置至少包括陀螺仪。
可选的，在所述第一终端在频段FR2上发送控制信令和/或非控制信令、且处于网络覆盖范围内的情况下，所述第一指示信号包括第二DCI，所述第二DCI是由网络侧设备发送、且所述第二DCI中至少包括第一终端预约的发送资源信息；在所述第一终端在频段FR1上发送控制信令、在FR2频段上发 送非控制信令、且所述第一终端、第二终端处于网络覆盖范围内的情况下，所述第一指示信号包括第一无线资源控制RRC信令，所述第一RRC信令中至少包括第一参考波束方位；在所述第一终端在FR1频段上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端、第二终端未处于网络覆盖范围内的情况下，所述第一指示信号包括第三终端发送的同步信号。
可选的，所述第二DCI中还包括所述第一终端的终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
可选的，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。
可选的，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
可选的，在所述第一指示信号为所述第二DCI的情况下，所述第一终端根据所述第二DCI中包括的发送资源信息从至少一个侧链路资源池中确定所述目标资源池；在所述第一指示信号为所述第一RRC信令的情况下，所述第一终端根据第一位置坐标以及所述第一RRC中携带的第一参考波束方位确定所述目标资源池；在所述第一指示信号为所述同步信号的情况下，所述第一终端根据第一接收波束的波束方位和波束索引，确定第二参考波束方位，以及根据所述第二参考波束方位以及所述第一位置坐标确定所述目标资源池，所述第一接收波束用于接收所述同步信号。
可选地，射频单元1101发送第二SCI给第二终端，所述第二SCI中至少携带有所述目标资源池中的空域资源的信息。
如图8所示，为本申请一示例性实施例提供的侧链路通信装置800的结 构示意图，该装置800可以包括第二传输模块810，所述第二传输模块810用于以下至少一项：接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据；接收网络侧设备发送的第二下行控制信息DCI，以及根据所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
可选的，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
可选的，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
Figure PCTCN2022124473-appb-000050
其中，
Figure PCTCN2022124473-appb-000051
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000052
表示波束宽度，
Figure PCTCN2022124473-appb-000053
表示波束数量，l表示所述侧链路资源池的次序。
可选的，所述第二传输模块810用于根据所述目标资源池的空域资源的信息，将接收波束方位与所述第一终端的发送波束方位对齐；或者，根据所述第二DCI中包括的发送波束方位，将接收波束方位与所述第一终端的发送波束方位对齐。
可选的，所述第二DCI中还包括终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
可选的，所述第二DCI专用于向所述第一终端和/或第二终端指示所述目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息以及发送波束方位。
可选的，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、 所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
如图9所示，为本申请一示例性实施例提供的侧链路通信装置900的结构示意图，该装置900可以包括第三传输模块910，所述第三传输模块910用于以下至少一项：发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端；发送第一RRC信令，所述第一RRC信令中携带有第一参考波束方位；发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
可选的，所述第二DCI中还包括所述第一终端的终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
可选的，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。
可选的，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI是专用于所述第二DCI加扰的RNTI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
如图10所示，为本申请一示例性实施例提供的侧链路通信装置1000的结构示意图，该装置1000可以包括第四传输模块1010，所述第四传输模块1010用于以下至少一项：发送第一侧链路控制信息SCI给第一终端，所述第 一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位；其中，所述第三终端为所述第一终端的同步参考终端。
本申请实施例中的侧链路通信装置可以是装置，具有操作系统的装置或电子设备，也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例提供的侧链路通信装置能够实现前述方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如方法实施例200-500中所述的方法的步骤。该终端实施例是与上述终端侧方法实施例对应的，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图11为实现本申请实施例的一种终端的硬件结构示意图。
该终端1100包括但不限于：射频单元1101、网络模块1102、音频输出单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、接口单元1108、存储器1109、以及处理器1110等中的至少部分部件。
本领域技术人员可以理解，终端1100还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图11中示出的 终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1104可以包括图形处理器(Graphics Processing Unit，GPU)1041和麦克风11042，图形处理器11041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1106可包括显示面板11061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板11061。用户输入单元1107包括触控面板11071以及其他输入设备11072。触控面板11071，也称为触摸屏。触控面板11071可包括触摸检测装置和触摸控制器两个部分。其他输入设备11072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1101将来自网络侧设备的下行数据接收后，给处理器1110处理；另外，将上行的数据发送给网络侧设备。通常，射频单元1101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1109可用于存储软件程序或指令以及各种数据。存储器1109可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1109可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器1110可包括一个或多个处理单元；可选的，处理器1110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户 界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1110中。
其中，终端1100在侧脸路通信场景中的角色的不同，所述处理器1110所能实现的功能不同，下面分别对其进行说明。
(1)所述终端1100作为TX UE
所述处理器1110从至少一个侧链路资源池中选取目标资源池；基于所述目标资源池传输目标数据；其中，每个所述侧链路资源池中至少配置有空域资源。
可选的，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
可选的，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系
Figure PCTCN2022124473-appb-000054
其中，
Figure PCTCN2022124473-appb-000055
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000056
表示波束宽度，
Figure PCTCN2022124473-appb-000057
表示波束数量，l表示所述侧链路资源池的次序。
可选的，每个所述侧链路资源池中还配置有时域资源和频域资源，其中，对于所述第一终端，所述空域资源、所述时域资源和所述频域资源相互对齐且具有一致性。
可选的，在所述空域资源包括所述波束宽度的情况下，所述第一终端的最大波束宽度小于或等于所述目标资源池中的波束宽度。
可选的，所述处理器1110从至少一个侧链路资源池中选取目标资源池的步骤，包括：根据第一信息从至少一个所述侧链路资源池中选取目标资源池；其中，所述第一信息包括绝对参考波束方位、相对参考波束方位、第一指示信号中的至少一项，所述第一指示信号用于指示第一参考波束方位。
可选的，在所述第一信息包括绝对参考波束方位的情况下，所述绝对参考波束方位的获取过程，包括：所述第一终端根据第一位置坐标和第一参考坐标，确定所述第一参考坐标所在的第一波束方位；所述第一终端根据所述 第一参考坐标所在的第一波束方位，确定所述绝对参考波束方位；其中，所述第一位置坐标至少包括所述第一终端的位置坐标，所述第一参考坐标是基于所述至少一个侧链路资源池确定。
可选的，在所述第一信息包括相对参考波束方位的情况下，所述相对参考波束方位的获取过程包括以下至少一项：在所述第一终端处于网络覆盖范围内的情况下，所述第一终端根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位；在所述第一终端未处于网络覆盖范围内的情况下，所述第一终端根据第三终端的波束方位和波束索引确定所述相对参考波束方位，所述第三终端为所述第一终端的同步参考终端。
可选的，所述处理器1110根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：接收所述网络侧设备发送的第一下行控制信息DCI，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；根据所述第一发射波束的波束方位和波束索引、第一位置坐标以及所述网络侧设备的地理位置，确定所述相对参考波束方位，所述第一位置坐标至少包括所述第一终端的位置坐标。
可选的，所述处理器1110根据第三终端的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：接收所述第三终端发送的第一侧链路控制信息SCI，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI；根据所述第二发射波束的波束方位和波束索引、第一位置坐标以及所述第三终端的地理位置，确定所述相对参考波束方位。
可选的，所述处理器1110用于以下任一项：在所述目标数据对应的发送波束方位为第二波束方位的情况下，根据所述第二波束方位、所述绝对参考波束方位、所述目标资源池确定第三波束方位，或者，根据所述第二波束方 位、所述相对参考波束方位、所述目标资源池确定第三波束方位；基于所述第三波束方位发送所述目标数据。
可选地，
Figure PCTCN2022124473-appb-000058
其中，k opt表示所述第三波束方位的波束索引，θ t表示所述第二波束方位，θ R表示所述绝对参考波束方位或所述相对参考波束方位，
Figure PCTCN2022124473-appb-000059
表示所述目标资源池中的波束偏移量，
Figure PCTCN2022124473-appb-000060
所述目标资源池中的波束宽度，
Figure PCTCN2022124473-appb-000061
可选的，在所述第一信息包括所述绝对参考波束方位和所述相对参考波束方位的情况下，所述处理器1110根据所述网络侧设备发送的第二指示信号确定是根据所述绝对参考波束方位还是所述相对参考波束方位从至少一个所述侧链路资源池中选取目标资源池；其中，所述第二指示信号是所述网络侧设备根据第一能力确定，所述第一能力用于表征所述第一终端是否支持第一位置坐标的获取，所述第一位置坐标包括所述第一终端的位置坐标和/或所述第一终端的方位。
可选的，所述第一位置坐标是所述第一终端通过设置于自身的位置检测装置获取，所述位置检测装置至少包括陀螺仪。
可选的，在所述第一终端在频段FR2上发送控制信令和/或非控制信令、且处于网络覆盖范围内的情况下，所述第一指示信号包括第二DCI，所述第二DCI是由网络侧设备发送、且所述第二DCI中至少包括第一终端预约的发送资源信息；在所述第一终端在频段FR1上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端、第二终端处于网络覆盖范围内的情况下，所述第一指示信号包括第一无线资源控制RRC信令，所述第一RRC信令中至少包括第一参考波束方位；在所述第一终端在FR1频段上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端、第二终端未处于网络覆盖范围内的情况下，所述第一指示信号包括第三终端发送的同步信号。
可选的，所述第二DCI中还包括所述第一终端的终端源层二标识Source  L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
可选的，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。
可选的，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
可选的，在所述第一指示信号为所述第二DCI的情况下，所述第一终端根据所述第二DCI中包括的发送资源信息从至少一个侧链路资源池中确定所述目标资源池；在所述第一指示信号为所述第一RRC信令的情况下，所述第一终端根据第一位置坐标以及所述第一RRC中携带的第一参考波束方位确定所述目标资源池；在所述第一指示信号为所述同步信号的情况下，所述第一终端根据第一接收波束的波束方位和波束索引，确定第二参考波束方位，以及根据所述第二参考波束方位以及所述第一位置坐标确定所述目标资源池，所述第一接收波束用于接收所述同步信号。
可选地，射频单元1101发送第二SCI给第二终端，所述第二SCI中至少携带有所述目标资源池中的空域资源的信息。
(2)所述终端1100作为RX UE
所述处理1110用于执行以下至少一项：接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据；接收网络侧设备发送的第二下行控制信息DCI，以及根据所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
可选的，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索 引中的至少一项。
可选的，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
Figure PCTCN2022124473-appb-000062
其中，
Figure PCTCN2022124473-appb-000063
表示所述波束偏移量，
Figure PCTCN2022124473-appb-000064
表示波束宽度，
Figure PCTCN2022124473-appb-000065
表示波束数量，l表示所述侧链路资源池的次序。
可选的，所述处理1110用于根据所述目标资源池的空域资源的信息，将接收波束方位与所述第一终端的发送波束方位对齐；或者，根据所述第二DCI中包括的发送波束方位，将接收波束方位与所述第一终端的发送波束方位对齐。
可选的，所述第二DCI中还包括终端源层二标识Source L2-ID；其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
可选的，所述第二DCI专用于向所述第一终端和/或第二终端指示所述目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息以及发送波束方位。
可选的，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
(3)所述终端1100作为SyncRef UE
所述处理1110用于执行以下至少一项：发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；第三终端发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二 参考波束方位；其中，所述第三终端为所述第一终端的同步参考终端。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如网络侧设备方法实施例中所述的方法的步骤。该网络侧设备实施例是与上述网络侧设备方法实施例对应的，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备。如图12所示，该网络设备1200包括：天线1201、射频装置1202、基带装置1203。天线1201与射频装置1202连接。在上行方向上，射频装置1202通过天线1201接收信息，将接收的信息发送给基带装置1203进行处理。在下行方向上，基带装置1203对要发送的信息进行处理，并发送给射频装置1202，射频装置1202对收到的信息进行处理后经过天线1201发送出去。
上述频带处理装置可以位于基带装置1203中，以上实施例中网络侧设备执行的方法可以在基带装置1203中实现，该基带装置1203包括处理器1204和存储器1205。
基带装置1203例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图12所示，其中一个芯片例如为处理器1204，与存储器1205连接，以调用存储器1205中的程序，执行以上方法实施例中所示的网络设备操作。
该基带装置1203还可以包括网络接口1206，用于与射频装置1202交互信息，该接口例如为通用公共无线接口(common public radio interface，简称CPRI)。
具体地，本发明实施例的网络侧设备还包括：存储在存储器1205上并可在处理器1204上运行的指令或程序，处理器1204调用存储器1205中的指令或程序执行图9所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质可以是易失 性的，也可以是非易失性的，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述侧链路通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行网络侧设备程序或指令，实现上述侧链路通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品存储在非瞬态的存储介质，所述计算机程序产品被所述处理器执行时，实现上述侧链路通信方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被 组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (40)

  1. 一种侧链路通信方法，其中，包括：
    第一终端从至少一个侧链路资源池中选取目标资源池；
    所述第一终端基于所述目标资源池传输目标数据；
    其中，每个所述侧链路资源池中至少配置有空域资源。
  2. 如权利要求1所述的方法，其中，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
  3. 如权利要求2所述的方法，其中，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
    Figure PCTCN2022124473-appb-100001
    其中，
    Figure PCTCN2022124473-appb-100002
    表示所述波束偏移量，θ l p表示所述波束宽度，k l p表示所述波束数量，l表示所述侧链路资源池的次序。
  4. 如权利要求2所述的方法，其中，每个所述侧链路资源池中还配置有时域资源和频域资源，其中，对于所述第一终端，所述空域资源、所述时域资源和所述频域资源相互对齐且具有一致性。
  5. 如权利要求2所述的方法，其中，在所述空域资源包括所述波束宽度的情况下，所述第一终端的最大波束宽度小于或等于所述目标资源池中的波束宽度。
  6. 如权利要求1-5中任一项所述的方法，其中，所述第一终端从至少一个侧链路资源池中选取目标资源池的步骤，包括：
    所述第一终端根据第一信息从至少一个所述侧链路资源池中选取目标资源池；
    其中，所述第一信息包括绝对参考波束方位、相对参考波束方位、第一指示信号中的至少一项，所述第一指示信号用于指示第一参考波束方位。
  7. 如权利要求6所述的方法，其中，在所述第一信息包括绝对参考波束 方位的情况下，所述绝对参考波束方位的获取过程，包括：
    所述第一终端根据第一位置坐标和第一参考坐标，确定所述第一参考坐标所在的第一波束方位；
    所述第一终端根据所述第一参考坐标所在的第一波束方位，确定所述绝对参考波束方位；
    其中，所述第一位置坐标至少包括所述第一终端的位置坐标，所述第一参考坐标是基于所述至少一个侧链路资源池确定。
  8. 如权利要求6所述的方法，其中，在所述第一信息包括相对参考波束方位的情况下，所述相对参考波束方位的获取过程包括以下至少一项：
    在所述第一终端处于网络覆盖范围内的情况下，所述第一终端根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位；
    在所述第一终端未处于网络覆盖范围内的情况下，所述第一终端根据第三终端的波束方位和波束索引确定所述相对参考波束方位，所述第三终端为所述第一终端的同步参考终端。
  9. 如权利要求8所述的方法，其中，所述第一终端根据网络侧设备的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：
    所述第一终端接收所述网络侧设备发送的第一下行控制信息DCI，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；
    所述第一终端根据所述第一发射波束的波束方位和波束索引、第一位置坐标以及所述网络侧设备的地理位置，确定所述相对参考波束方位，所述第一位置坐标至少包括所述第一终端的位置坐标。
  10. 如权利要求8所述的方法，其中，所述第一终端根据第三终端的波束方位和波束索引确定所述相对参考波束方位的步骤，包括：
    所述第一终端接收所述第三终端发送的第一侧链路控制信息SCI，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI；
    所述第一终端根据所述第二发射波束的波束方位和波束索引、第一位置坐标以及所述第三终端的地理位置，确定所述相对参考波束方位。
  11. 如权利要求7-10中任一项所述的方法，其中，所述第一终端基于所述目标资源池传输目标数据的步骤，包括：
    在所述目标数据对应的发送波束方位为第二波束方位的情况下，所述第一终端根据所述第二波束方位、所述绝对参考波束方位、所述目标资源池确定第三波束方位，或者，所述第一终端根据所述第二波束方位、所述相对参考波束方位、所述目标资源池确定第三波束方位；
    所述第一终端基于所述第三波束方位发送所述目标数据。
  12. 如权利要求11所述的方法，其中，
    Figure PCTCN2022124473-appb-100003
    其中，k opt表示所述第三波束方位的波束索引，θ t表示所述第二波束方位，θ R表示所述绝对参考波束方位或所述相对参考波束方位，
    Figure PCTCN2022124473-appb-100004
    表示所述目标资源池中的波束偏移量，θ l p所述目标资源池中的波束宽度，k＝0，1，...，k l p-1。
  13. 如权利要求7-10中任一项所述的方法，其中，所述第一终端根据第一信息从至少一个侧链路资源池中选取目标资源池的步骤之前，所述方法还包括：
    在所述第一信息包括所述绝对参考波束方位和所述相对参考波束方位的情况下，所述第一终端根据所述网络侧设备发送的第二指示信号确定是根据所述绝对参考波束方位还是所述相对参考波束方位从至少一个所述侧链路资源池中选取目标资源池；
    其中，所述第二指示信号是所述网络侧设备根据第一能力确定，所述第 一能力用于表征所述第一终端是否支持第一位置坐标的获取，所述第一位置坐标包括所述第一终端的位置坐标和/或所述第一终端的方位。
  14. 如权利要求13所述的方法，其中，所述第一位置坐标是所述第一终端通过设置于自身的位置检测装置获取，所述位置检测装置至少包括陀螺仪。
  15. 如权利要求6所述的方法，其中，
    在所述第一终端在频段FR2上发送控制信令和/或非控制信令、且处于网络覆盖范围内的情况下，所述第一指示信号包括第二DCI，所述第二DCI是由网络侧设备发送、且所述第二DCI中至少包括第一终端预约的发送资源信息；
    在所述第一终端在频段FR1上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端、第二终端处于网络覆盖范围内的情况下，所述第一指示信号包括第一无线资源控制RRC信令，所述第一RRC信令中至少包括第一参考波束方位；
    在所述第一终端在FR1频段上发送控制信令、在FR2频段上发送非控制信令、且所述第一终端、第二终端未处于网络覆盖范围内的情况下，所述第一指示信号包括第三终端发送的同步信号。
  16. 如权利要求15所述的方法，其中，所述第二DCI中还包括所述第一终端的终端源层二标识Source L2-ID；
    其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；
    具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
  17. 如权利要求15所述的方法，其中，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约的发送资源信息。
  18. 如权利要求15所述的方法，其中，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
  19. 如权利要求15所述的方法，其中，所述第一终端根据第一指示信号从至少一个侧链路资源池中选取目标资源池的步骤，包括：
    在所述第一指示信号为所述第二DCI的情况下，所述第一终端根据所述第二DCI中包括的发送资源信息从至少一个侧链路资源池中确定所述目标资源池；
    在所述第一指示信号为所述第一RRC信令的情况下，所述第一终端根据第一位置坐标以及所述第一RRC中携带的第一参考波束方位确定所述目标资源池；
    在所述第一指示信号为所述同步信号的情况下，所述第一终端根据第一接收波束的波束方位和波束索引，确定第二参考波束方位，以及根据所述第二参考波束方位以及所述第一位置坐标确定所述目标资源池，所述第一接收波束用于接收所述同步信号。
  20. 如权利要求1-4中任一项所述的方法，其中，第一终端基于所述目标资源池传输目标数据的步骤之前，所述方法还包括以下至少一项：
    所述第一终端发送第二SCI给第二终端，所述第二SCI中至少携带有所述目标资源池中的空域资源的信息；
    所述第一终端接收网络侧设备发送的第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
  21. 一种侧链路通信方法，其中，所述方法包括以下至少一项：
    第二终端接收第一终端发送的第二侧链路控制信息SCI，以及根据所述第二SCI指示的目标资源池的空域资源接收所述第一终端发送的目标数据；
    所述第二终端接收网络侧设备发送的第二下行控制信息DCI，以及根据 所述第二DCI指示的发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息。
  22. 如权利要求21所述的方法，其中，所述空域资源包括波束宽度、波束偏移量、波束数量、波束索引中的至少一项。
  23. 如权利要求22所述的方法，其中，所述波束偏移量、所述波束宽度和所述波束数量满足以下关系：
    Figure PCTCN2022124473-appb-100005
    其中，
    Figure PCTCN2022124473-appb-100006
    表示所述波束偏移量，θ l p表示所述波束宽度，k l p表示所述波束数量，l表示所述侧链路资源池的次序。
  24. 如权利要求21所述的方法，其中，接收所述第一终端发送的目标数据的步骤之前，所述方法还包括：
    所述第二终端根据所述目标资源池的空域资源的信息，将接收波束方位与所述第一终端的发送波束方位对齐；
    或者，
    所述第二终端根据所述第二DCI中包括的发送波束方位，将接收波束方位与所述第一终端的发送波束方位对齐。
  25. 如权利要求21所述的方法，其中，所述第二DCI中还包括终端源层二标识Source L2-ID；
    其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；
    具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
  26. 如权利要求21所述的方法，其中，所述第二DCI专用于向所述第一终端和/或第二终端指示所述目标资源，所述目标资源至少包括所述第一终端 预约的发送资源信息。
  27. 如权利要求21所述的方法，其中，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI专用于所述第二DCI、但所述第一RNTI通用于所述第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
  28. 一种侧链路通信方法，其中，所述方法包括以下至少一项：
    网络侧设备发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；
    网络侧设备发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端；
    网络侧设备发送第一RRC信令，所述第一RRC信令中携带有第一参考波束方位；
    网络侧设备发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
  29. 如权利要求28所述的方法，其中，所述第二DCI中还包括所述第一终端的终端源层二标识Source L2-ID；
    其中，具有相同的所述Source L2-ID的终端能够使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送；
    具有不同的所述Source L2-ID的终端能够判断通过第二DCI预约的发送资源信息、但不能使用通过所述第二DCI预约的发送资源信息进行侧链路数据的发送。
  30. 如权利要求28所述的方法，其中，所述第二DCI专用于向所述第一终端和/或第二终端指示目标资源，所述目标资源至少包括所述第一终端预约 的发送资源信息。
  31. 如权利要求28所述的方法，其中，所述第二DCI通过第一无线网络临时标识RNTI进行加扰，所述第一RNTI是专用于所述第二DCI加扰的RNTI、但所述第一RNTI通用于第一终端、所述第二终端以及除所述第一终端和所述第二终端之外的其他终端。
  32. 一种侧链路通信方法，其中，所述方法包括以下至少一项：
    第三终端发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；
    第三终端发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位；
    其中，所述第三终端为所述第一终端的同步参考终端。
  33. 一种侧链路通信装置，其中，应用于第一终端，所述装置包括：
    第一获取模块，用于从至少一个侧链路资源池中选取目标资源池；
    第一传输模块，用于所述第一终端基于所述目标资源池传输目标数据；
    其中，每个所述侧链路资源池中至少配置有空域资源。
  34. 一种侧链路通信装置，其中，应用于第二终端，所述装置包括第二传输模块，所述第二传输模块用于以下至少一项：
    接收第一终端发送的第二侧链路控制信息SCI，以及根据目标资源池的空域资源的信息接收所述第一终端基于所述目标资源池发送的目标数据，其中，所述目标资源池的空域资源的信息携带于所述第二SCI中；
    接收网络侧设备发送的第二DCI，以及根据发送资源信息接收所述第一终端发送的目标数据，其中，所述发送资源信息为第一终端预约的资源信息、且携带于所述第二DCI中。
  35. 一种侧链路通信装置，其中，应用于网络侧设备，所述装置包括第三 传输模块，所述第三传输模块用于以下至少一项：
    发送第一下行控制信息DCI给第一终端，所述第一DCI中至少包括第一传输配置指示TCI以及所述网络侧设备的地理位置，所述第一TCI为所述网络侧设备发送所述第一DCI时的第一发射波束的TCI，所述第一发射波束与FR2相关、且由所述网络侧设备根据自身的地理位置确定；
    发送第二DCI给多个第四终端，所述第二DCI中至少包括所述第一终端预约的发送资源信息，所述多个第四终端位于所述网络侧设备的覆盖范围内、且所述第一终端、所述第一终端属于所述多个第四终端；
    发送第一RRC信令，所述第一RRC信令中携带有第一参考波束方位；
    发送第二RRC信令，所述第二RRC信令用于配置所述至少一个侧链路资源池。
  36. 一种侧链路通信装置，其中，应用于第三终端，所述装置包括第四传输模块，所述第四传输模块用于以下至少一项：
    发送第一侧链路控制信息SCI给第一终端，所述第一SCI至少包括所述第三终端的地理位置以及第二TCI，所述第二TCI是所述第三终端发送所述第一SCI时的第二发射波束的TCI，所述第二发射波束与FR2相关、且由所述第三终端根据自身的地理位置确定；
    发送同步信号，所述同步信号用于第一终端和/或第二终端获取第二参考波束方位；
    其中，所述第三终端为所述第一终端的同步参考终端。
  37. 一种终端，其中，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至20任一项所述的侧链路通信方法的步骤，或者实现如权利要求21至27任一项所述的侧链路通信方法的步骤，或者实现如权利要求32所述的侧链路通信方法的步骤。
  38. 一种网络侧设备，其中，包括处理器，存储器及存储在所述存储器上 并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求28-31任一项所述的侧链路通信方法的步骤。
  39. 一种可读存储介质，其中，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至20任一项所述的侧链路通信方法的步骤，或者实现如权利要求21至27任一项所述的侧链路通信方法的步骤，或者实现如权利要求28-31任一项所述的侧链路通信方法的步骤，或者实现如权利要求32所述的侧链路通信方法的步骤。
  40. 一种计算机程序产品，所述计算机程序产品被存储在非瞬态的存储介质中，所述计算机程序产品被至少一个处理器执行以实现如权利要求1至20任一项所述的侧链路通信方法的步骤，或者实现如权利要求21至27任一项所述的侧链路通信方法的步骤，或者实现如权利要求28-31任一项所述的侧链路通信方法的步骤，或者实现如权利要求32所述的侧链路通信方法的步骤。
PCT/CN2022/124473 2021-10-11 2022-10-10 侧链路通信方法、终端及网络侧设备 Ceased WO2023061346A1 (zh)

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