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WO2023061346A1 - Procédé de communication de liaison latérale, et terminal et dispositif côté réseau - Google Patents

Procédé de communication de liaison latérale, et terminal et dispositif côté réseau 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)
Chinese (zh)
Inventor
郑倩
吴建明
纪子超
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2023061346A1 publication Critical patent/WO2023061346A1/fr
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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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande appartient au domaine des communications. Sont divulgués un procédé de communication de liaison latérale, ainsi qu'un terminal et un dispositif côté réseau. Selon les modes de réalisation de la présente demande, le procédé de communication de liaison latérale comprend les étapes suivantes : un premier terminal sélectionne un groupe de ressources cible parmi au moins un groupe de ressources de liaison latérale ; et le premier terminal transmet des données cibles d'après le groupe de ressources cible, une ressource de domaine spatial étant au moins configurée dans chaque groupe de ressources de liaison latérale.
PCT/CN2022/124473 2021-10-11 2022-10-10 Procédé de communication de liaison latérale, et terminal et dispositif côté réseau Ceased WO2023061346A1 (fr)

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CN117121607A (zh) * 2023-06-26 2023-11-24 上海移远通信技术股份有限公司 用于侧行通信的方法及装置
CN120076057A (zh) * 2023-11-29 2025-05-30 华为技术有限公司 一种确定波束类型的方法及相关装置

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