WO2023246774A1 - Procédé de transmission de données sl, premier terminal et second terminal - Google Patents

Procédé de transmission de données sl, premier terminal et second terminal Download PDF

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Publication number
WO2023246774A1
WO2023246774A1 PCT/CN2023/101387 CN2023101387W WO2023246774A1 WO 2023246774 A1 WO2023246774 A1 WO 2023246774A1 CN 2023101387 W CN2023101387 W CN 2023101387W WO 2023246774 A1 WO2023246774 A1 WO 2023246774A1
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WIPO (PCT)
Prior art keywords
terminal
resource
information
carrier
priority
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PCT/CN2023/101387
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English (en)
Chinese (zh)
Inventor
李萍
刘思綦
纪子超
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维沃移动通信有限公司
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Publication of WO2023246774A1 publication Critical patent/WO2023246774A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • This application belongs to the field of communication technology, and specifically relates to an SL data transmission method, a first terminal and a second terminal.
  • LTE-A Long Term Evolution-Advanced
  • CA Carrier Aggregation
  • UE may simultaneously send physical sidelinks on multiple carrier units within a frequency band (band).
  • the physical sidelink shared channel Physical Sidelink Shared Channel, PSSCH
  • the physical sidelink feedback channel Physical Sidelink Feedback Channel, PSFCH, PSSCH
  • PSSCH Physical Sidelink Feedback Channel
  • Embodiments of the present application provide an SL data transmission method, a first terminal, and a second terminal, which can solve the problem of conflict between transmission and reception of different carriers.
  • a side-link SL data transmission method which method includes:
  • the first terminal performs rate matching or hole punching on the first transmission resource on the first carrier to obtain the target transmission resource; the first terminal sends M1 pieces of first information based on the target transmission resource;
  • the first terminal sends each of the first information or receives each of the second information based on the priorities of M1 first information and M2 second information; the first sending resource is used for the first The terminal sends each of the first information;
  • the first event includes at least one of the following:
  • the first sending resource overlaps with the first opportunity and/or the first receiving resource of the first terminal on at least one second carrier; the first receiving resource is used for the first terminal to receive the M2th 2. Information;
  • the first terminal receives a first message from the second terminal, the first message is used to indicate that the second receiving resource of the second terminal on the first carrier is consistent with the second receiving resource of the second terminal on the first carrier. There is overlap in the second timing and/or the second sending resource on at least one third carrier; the second receiving resource is used for the second terminal to receive each of the first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or instruct Information related to rate matching or hole punching by the first terminal.
  • a side-link SL data transmission method which method includes:
  • the second terminal performs rate matching or demodulation or reception on the third reception resource on the first carrier to obtain the target reception resource; the second terminal receives N1 third information based on the target reception resource;
  • the second terminal receives each of the third information or sends each of the fourth information based on the priorities of N1 third information and N2 fourth information; the third receiving resource is used for the second The terminal receives each of the third information;
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth opportunity and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send the N2th four information;
  • the second terminal receives a third message from the first terminal, the third message is used to indicate that the fifth transmission resource of the first terminal on the first carrier is the same as that of the first terminal on the first carrier.
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or instruct The second terminal performs SL reception based on the pattern pattern after rate matching or puncturing by the first terminal.
  • a side-link SL data transmission device which device includes:
  • a sending module configured to perform rate matching or hole punching on the first sending resource on the first carrier to obtain the target sending resource when the first event is satisfied; and send M1 pieces of first information based on the target sending resource;
  • each of the first information is sent or each of the second information is received; the first sending resource is used by the first terminal to send each piece of said second information.
  • the first event includes at least one of the following:
  • the first sending resources overlap with the first timing and/or the first receiving resources of the first terminal on at least one second carrier; the first receiving resources are used for the first terminal to receive M2 pieces of second information ;
  • the first terminal receives a first message from the second terminal, the first message is used to indicate that the second receiving resource of the second terminal on the first carrier is consistent with the second receiving resource of the second terminal on the first carrier. There is overlap in the second timing and/or the second sending resource on at least one third carrier; the second receiving resource is used for the second terminal to receive each of the first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or instruct Information related to rate matching or hole punching by the first terminal.
  • a side-link SL data transmission device which device includes:
  • a receiving module configured to perform rate matching or demodulation or reception on the third receiving resource on the first carrier to obtain the target receiving resource when the second event is satisfied; and receive the N1th receiving resource based on the target receiving resource.
  • the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the third information based on the priority of N1 third information and the priority of N2 fourth information, receive each of the third information or send each of the fourth information; the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth timing and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send N2 pieces of fourth information ;
  • the second terminal receives a third message from the first terminal, the third message is used to indicate that the fifth transmission resource of the first terminal on the first carrier is the same as that of the first terminal on the first carrier.
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or instruct The second terminal performs SL reception based on the pattern pattern after rate matching or puncturing by the first terminal.
  • a first terminal in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor.
  • a first terminal including a processor and a communication interface; wherein the communication interface is used to perform rate matching or rate matching on the first transmission resource on the first carrier when the first event is satisfied. Punch holes to obtain the target transmission resources; and send M1 first information based on the target transmission resources;
  • each of the first information is sent or each of the second information is received; the first sending resource is used by the first terminal to send each piece of said second information.
  • the first event includes at least one of the following:
  • the first sending resources overlap with the first timing and/or the first receiving resources of the first terminal on at least one second carrier; the first receiving resources are used for the first terminal to receive M2 pieces of second information ;
  • the first terminal receives a first message from the second terminal, the first message is used to indicate that the second receiving resource of the second terminal on the first carrier is consistent with the second receiving resource of the second terminal on the first carrier. There is overlap in the second timing and/or the second sending resource on at least one third carrier; the second receiving resource is used for the second terminal to receive each of the first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or instruct Information related to rate matching or hole punching by the first terminal.
  • a second terminal in a seventh aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor.
  • a second terminal including a processor and a communication interface; wherein the communication interface is used to perform rate matching on the third receiving resource on the first carrier when the second event is satisfied. Or demodulate or receive to obtain the target reception resource; and receive N1 third information based on the target reception resource;
  • the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the third information based on the priority of N1 third information and the priority of N2 fourth information, receive each of the third information or send each of the fourth information; the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth timing and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send N2 pieces of fourth information ;
  • the second terminal receives a third message from the first terminal, the third message is used to indicate that the fifth transmission resource of the first terminal on the first carrier is the same as that of the first terminal on the first carrier.
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or instruct The second terminal performs SL reception based on the pattern pattern after rate matching or puncturing by the first terminal.
  • a ninth aspect provides a side-link SL data transmission system, including: a first terminal and a second terminal.
  • the first terminal can be used to perform the steps of the method described in the first aspect.
  • the second terminal May be used to perform the steps of the method as described in the second aspect.
  • a readable storage medium In a tenth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the second aspect.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement a method as described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect
  • the first terminal when there is a problem of transmission and reception conflict on different carriers, the first terminal performs rate matching or hole punching on the first transmission resource to obtain the target transmission resource, and sends M1 first transmission resources based on the target transmission resource. information; or the first terminal determines to send the first information or receive the second information based on the priorities of the M1 first information to be sent and the M2 second information to be received, thereby solving the problems existing in the carrier aggregation scenario.
  • the problem of sending and receiving conflicts on different carriers can improve SL transmission performance.
  • Figure 1 is a schematic diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is one of the flow diagrams of the SL data transmission method provided by the embodiment of the present application.
  • Figure 3 is one of the schematic diagrams of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 4 is the second schematic flow chart of the SL data transmission method provided by the embodiment of the present application.
  • Figure 5 is the second schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 6 is the third schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 7 is the fourth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 8 is the fifth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 9 is the sixth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 10 is the seventh schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 11 is the eighth schematic diagram of resource distribution on different CCs provided by the embodiment of the present application.
  • Figure 12 is the ninth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • Figure 13 is one of the structural schematic diagrams of the SL data transmission device provided by the embodiment of the present application.
  • Figure 14 is the second structural schematic diagram of the SL data transmission device provided by the embodiment of the present application.
  • Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 16 is a schematic structural diagram of a first terminal provided by an embodiment of the present application.
  • Figure 17 is a schematic structural diagram of a second terminal provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • 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
  • NR New Radio
  • FIG 1 is a schematic diagram of a wireless communication system applicable to the embodiment of the present application.
  • the wireless communication system shown in Figure 1 includes a terminal 11 and a network side device 12.
  • 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), a handheld computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • Mobile Internet Device MID
  • augmented reality augmented reality, AR
  • VR virtual reality
  • robots wearable devices
  • VUE vehicle-mounted equipment
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computers, PC), teller machines or self-service Terminal devices
  • wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), Smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11.
  • the network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless device. access network unit. Access network equipment may include base stations, WLAN access points or WiFi nodes, etc.
  • the base stations may be called Node B, Evolved Node B (eNB), Access Point, Base Transceiver Station (BTS), Radio Base Station , radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B-Node, Home Evolved B-Node, Transmitting Receiving Point (TRP) or the above
  • eNB Evolved Node B
  • BTS Base Transceiver Station
  • ESS Extended Service Set
  • Home B-Node Home Evolved B-Node
  • TRP Transmitting Receiving Point
  • Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), applied function Application Function (AF), location management function (LMF), Enhanced Serving Mobile Location Center (E-SMLC), network data analytics function (NWDAF), etc.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • LTE-A In order to meet the requirements of LTE-A's downlink peak speed of 1Gbps and uplink peak speed of 500Mbps, it is necessary to provide a maximum transmission bandwidth of 100MHz. However, due to the scarcity of continuous spectrum with such a large bandwidth, LTE-A proposed a carrier aggregation solution.
  • Carrier aggregation is the aggregation of 2 or more carrier units to support larger transmission bandwidth (up to 100MHz).
  • each carrier unit corresponds to an independent cell.
  • one carrier unit can be equated to one cell.
  • the maximum bandwidth of each carrier unit is 20MHz.
  • carrier aggregation supports aggregation between different carrier units:
  • LTE Long Term Evolution
  • SL side link
  • LTE Sidelink design supports two resource allocation modes, namely scheduled resource allocation (Scheduled resource allocation) mode and autonomous resource selection (autonomous resource selection) mode.
  • the former is controlled by the network side device and allocates resources to each UE, while the latter allows the UE to select resources independently.
  • LTE supports Sidelink carrier aggregation.
  • the CA of LTE Sidelink is different from the Uu interface (i.e. downlink downlink and uplink uplink).
  • PCC primary component carrier
  • SCC secondary component carrier
  • a UE in autonomous resource selection mode independently performs resource sensing and resource reservation on each CC.
  • LTE Sidelink is designed for specific public safety matters, such as emergency communications in disaster sites such as fires or earthquakes, or vehicle to everything (V2X) communications.
  • Internet of Vehicles communications include various services, such as basic safety communications, advanced (autonomous) driving, formations, sensor expansion, etc. Since LTE Sidelink only supports broadcast communication, it is mainly used for basic security communications. Other advanced V2X services will be supported through NR Sidelink.
  • the 5G NR system can be used in operating frequency bands above 6GHz that LTE does not support, supporting larger operating bandwidth.
  • the NR system also supports Sidelink interface communication for direct communication between terminals.
  • the SL data transmission method provided by the embodiment of the present application can be applied to the first terminal.
  • the embodiment of the present application takes the first terminal as the sending end as an example for explanation, but does not limit the first terminal to only send SL data.
  • Figure 2 is one of the flow diagrams of the SL data transmission method provided by the embodiment of the present application. As shown in Figure 2, the method includes step 201; wherein:
  • Step 201 When the first event is satisfied, the first terminal performs rate matching or hole punching on the first transmission resource on the first carrier to obtain the target transmission resource; the first terminal sends M1 pieces of first information based on the target transmission resource. ;
  • the first terminal sends each first information or receives each second information based on the priorities of M1 first information and M2 second information; the first sending resource is used by the first terminal to send each first information. .
  • the first event includes at least one of the following:
  • the first sending resources overlap with the first timing and/or the first receiving resources of the first terminal on at least one second carrier; the first receiving resources are used for the first terminal to receive each second information;
  • the first terminal receives a first message from the second terminal.
  • the first message is used to indicate the second receiving resource of the second terminal on the first carrier and the second opportunity of the second terminal on at least one third carrier and/ Or the second sending resources overlap; the second receiving resources are used by the second terminal to receive each first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives the first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or to instruct the first terminal to perform rate matching or transmission. Information about holes.
  • the terminal cannot send and receive data simultaneously on multiple carriers in one frequency band, at least within one frequency band (intra band).
  • NR SL applies carrier aggregation technology
  • the link feedback channel (physical sidelink feedback channel, PSFCH) is configured according to the resource pool.
  • PSSCH physical sidelink share channel
  • Figure 3 It is one of the schematic diagrams of resource distribution on different CCs provided by the embodiment of this application.
  • the diagonally shaded areas on CC1, CC2 and CC3 represent The transmission resources on the carrier
  • the dot-shaded area represents the reception resources on the carrier
  • the unshaded F area in the figure represents the timing reserved for PSFCH on the carrier.
  • This area can distribute both transmission resources and reception resources. It can be seen that the PSFCH transmission resources used for transmission on CC1 overlap with the PSSCH reception resources used for reception on CC2, and the PSFCH transmission resources used for transmission on CC1 also overlap with the PSSCH reception resources used for reception on CC3. , if the terminal wants to send PSSCH and receive PSFCH at the same time in the overlapping part of PSSCH and PSFCH on different carriers in carrier aggregation, then a half-duplex problem of transmission and reception conflict will occur.
  • the PSSCH positions configured on different carriers of carrier aggregation may also have overlapping parts, if the UE wants to send PSSCH and receive PSSCH at the same time in the overlapping part of PSSCH on different carriers of carrier aggregation, half-duplex conflict of transmission and reception will also occur. question.
  • the first terminal may, when the first event is satisfied, such as the timing or reception of the first transmission resource on the first carrier and other carriers. If resources overlap, or the reception resources corresponding to the first transmission resources, that is, the second reception resources overlap with timing or transmission resources on other carriers, perform the following steps:
  • the first terminal performs rate matching or hole punching on the first transmission resource on the first carrier to obtain target transmission resources without transceiver conflicts, and then the first terminal sends M1 pieces of first information based on the target transmission resources without transceiver conflicts, It can effectively solve the problem of sending and receiving conflicts of different carriers.
  • the first terminal may also send each first information or receive each second information based on the priorities of M1 first information and M2 second information, so as to avoid transmission and reception conflicts caused by simultaneous transmission and reception of information.
  • the first event may include any of the following:
  • the first sending resource overlaps with the first timing and/or the first receiving resource of the first terminal on at least one second carrier; wherein the first receiving resource is used for the first terminal to receive each second information;
  • the above-mentioned first sending resource may be a resource used for sending.
  • the above-mentioned first opportunity can be understood as a resource reserved on at least one second carrier for sending or receiving PSFCH.
  • the above-mentioned first receiving resource may be a resource used for receiving.
  • the first terminal receives the first message from the second terminal; wherein the first message is used to indicate the second receiving resource of the second terminal on the first carrier and the second receiving resource of the second terminal on at least one third carrier. There is overlap between the two opportunities and/or the second sending resources; the second receiving resources are used by the second terminal to receive each first information from the first terminal;
  • the second terminal may use the second receiving resource on the first carrier to overlap with the second timing and/or the second sending resource of the second terminal on at least one third carrier, that is, when the second terminal When the reception resources overlap with the timing and/or transmission resources on other carriers, the first message is sent to the sending end corresponding to the second reception resource, that is, to the first terminal to instruct the first terminal to pair with the second
  • the first sending resource corresponding to the receiving resource is rate matched or punched;
  • the first terminal After receiving the first message, the first terminal performs rate matching or hole punching on the first sending resource to avoid sending and receiving conflicts on the second receiving resource.
  • the second terminal may not inform the first terminal of the first message through higher layer notification or signaling.
  • the above-mentioned first message is used to indicate that the second terminal has a transceiver conflict at one or more locations, symbols or timings on one or more carriers, and is unavailable for reception or can only be used for transmission, or is used to indicate that the first terminal is not available for transmission.
  • One or more locations, symbols, or occasions on one or more carriers are unavailable for transmission.
  • the above-mentioned second receiving resource may be a resource used for receiving, and the sending end of the second receiving resource includes the first terminal.
  • the above-mentioned second sending resource may be a resource used for sending.
  • the above-mentioned second opportunity may be a PSFCH opportunity.
  • the third carrier and the second carrier may be the same carrier.
  • the second terminal may use the higher layer to Notify or notify the sending end corresponding to the second receiving resource by sending signaling, that is, notify the first terminal that there is a transmission and reception conflict in the second receiving resource, or notify the first terminal of one or more positions and symbols on one or more carriers or the opportunity is not available for sending; after receiving the notification, the first terminal will perform rate matching or hole punching on the first sending resource to avoid sending and receiving conflicts with the second receiving resource.
  • the first terminal can also determine the second receiving resource corresponding to the first sending resource and the third sending resource by detecting the first sending resource. Whether resources overlap, and further, based on the overlapping portion of the second receiving resource and the third sending resource, it can be determined that one or more positions, symbols or opportunities of the first terminal on one or more carriers are not available for transmission.
  • the above-mentioned third sending resource may be a resource used for sending, and the receiving end of the third sending resource may be the first terminal.
  • the first terminal receives the first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or to instruct the first terminal to perform rate matching. or information about drilling holes.
  • the above-mentioned first indication information can be used to indicate the third step in the process of determining the size of the transport block (TB) and the process of determining the number of symbols of the second-order sidelink control information (Sidelink Control Information, SCI). 1 expenses;
  • information that can be used to indicate how to rate match or punch holes As another example, information that can be used to indicate how to rate match or punch holes
  • the carrier information may be used to indicate the existence of a transceiver conflict.
  • the above-mentioned first indication information may be carried by the physical side link control channel (physical side link control channel, PSCCH) or PSSCH.
  • PSCCH physical side link control channel
  • PSSCH PSSCH
  • At least two carriers involved above can satisfy at least one of the following:
  • the subcarrier spacing (SCS) of the carrier is the same or different;
  • TX transmission
  • Radio Frequency RF
  • the first terminal when there is a problem of transmission and reception conflict on different carriers, the first terminal performs rate matching or hole punching on the first transmission resource to obtain the target transmission resource, and based on the target transmission resource Send M1 first information; or the first terminal determines to send the first information or receive the second information based on the priority of the M1 first information to be sent and the priority of the M2 second information to be received, thereby solving the problem of carrier
  • the problem of sending and receiving conflicts on different carriers in aggregation scenarios can improve SL transmission performance.
  • the above-mentioned first sending resource may include at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for transmission are 1) Periodic reserved resources and/or non-periodic reserved resources for transmission
  • PSSCH demodulation reference signal (Demodulation Reference Signal, DMRS) to be sent;
  • first opportunity and/or second opportunity may include at least one of the following:
  • TX switching period 7. The symbols occupied by the Transmission switching period (TX switching period).
  • the PSFCH timing can include PSFCH, PSFCH AGC and PSFCH GP.
  • the above-mentioned first receiving resource may include at least one of the following:
  • the above-mentioned second sending resource and/or third sending resource may include at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for sending are 1. Periodic reserved resources and/or non-periodic reserved resources for sending
  • the above-mentioned second receiving resource may include at least one of the following:
  • the above first overhead may include at least one of the following:
  • the implementation method by which the first terminal performs rate matching on the first transmission resource on the first carrier may include:
  • the first terminal When determining the resource mapping of the first transmission resource on the first carrier, the first terminal satisfies at least one of the following:
  • the first transmission resource does not have an overlapping position or symbol mapping with the first opportunity and/or the first reception resource on at least one second carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with the first opportunity and/or the first reception resource on at least one second carrier;
  • the first transmission resource does not have overlapping positions or symbol mappings with the second timing and/or the second transmission resource on at least one third carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with the second opportunity and/or the second transmission resource on at least one third carrier;
  • the first transmission resource does not have overlapping positions or symbol mappings with the third transmission resource on at least one fourth carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with the third transmission resource on at least one fourth carrier.
  • the implementation by the first terminal of puncturing the first transmission resource on the first carrier may include:
  • the first sending resource is sent at a position or symbol that does not overlap with the first timing and/or the first receiving resource on at least one second carrier;
  • the first sending resource is not sent at a position or symbol that overlaps with the first timing and/or the first receiving resource on at least one second carrier;
  • the first transmission resource is transmitted at a position or symbol that does not overlap with the second timing and/or the second transmission resource on at least one third carrier;
  • the first transmission resource is not transmitted at a position or symbol that overlaps with the second timing and/or the second transmission resource on at least one third carrier;
  • the first transmission resource is transmitted at a position or symbol that does not overlap with the third transmission resource on at least one fourth carrier;
  • the first transmission resource is not transmitted in a position or symbol that overlaps with the third transmission resource on at least one fourth carrier.
  • the first terminal determines the demodulation reference signal pattern (DMRS pattern) on the first carrier based on the target transmission resources;
  • DMRS pattern demodulation reference signal pattern
  • the first terminal selects a DMRS pattern on the first carrier; wherein the DMRS pattern satisfies at least one of the following:
  • the DMRS pattern does not overlap with the first opportunity and/or the first reception resource of the first terminal on at least one second carrier;
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the first opportunity and/or the first reception resource of the first terminal on at least one second carrier;
  • the DMRS pattern does not overlap with the second opportunity and/or the second transmission resource of the second terminal on at least one third carrier;
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the second timing and/or second transmission resource of the second terminal on at least one third carrier;
  • the DMRS pattern does not overlap with the third transmission resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the third transmission resource of the second terminal and/or the third terminal on at least one fourth carrier.
  • the first terminal when the first event is met, the first terminal sends second indication information to the second terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead. , or instruct the second terminal to perform SL reception based on the pattern after rate matching or puncturing by the first terminal; wherein the second overhead may include at least one of the following:
  • the above-mentioned second indication information may, for example, be used to indicate the first overhead during the TB size determination process and the second-order SCI symbol number determination process;
  • the information may be used to indicate how the first terminal performs rate matching or hole punching
  • it can be used to indicate how to perform rate matching, demodulation or reception related information
  • the carrier information may be used to indicate the existence of a transceiver conflict.
  • the above-mentioned second indication information may be carried by PSCCH or PSSCH.
  • the embodiment of the present application can solve the half-duplex problem according to the priority, and select the one with a higher priority to receive or send.
  • the implementation method by which the first terminal sends each piece of first information or receives each piece of second information may include:
  • the first terminal determines the sending priority corresponding to each first information and the receiving priority corresponding to each second information; wherein, the sending priority is The highest priority in the first information, the receiving priority is the highest priority in the second information;
  • the first terminal When the sending priority is higher than the receiving priority, the first terminal sends each first information
  • the first terminal sends each first information
  • the first terminal receives each second information
  • the first terminal receives each second information
  • the first terminal sends each first information
  • the first terminal When the sending priority is equal to the first threshold, the first terminal sends each first information
  • the first terminal receives each second information
  • the first terminal receives each second information
  • the first terminal receives each second information
  • the first terminal receives each second information
  • the first terminal When the reception priority is less than the second threshold, the first terminal sends each first information
  • the first terminal When the reception priority is equal to the second threshold, the first terminal sends each first information
  • the first terminal When there is at least one first information with a priority greater than or equal to the fifth threshold, the first terminal sends each first information;
  • the first terminal receives each second information
  • the first terminal sends each piece of first information.
  • the first terminal performs SL transmission on at least two carriers, including sending or receiving first information and sending or receiving second information.
  • the first terminal can transmit the first information according to the transmission priority of the first information and the transmission of the second information.
  • Priority determines whether to send the first message, or to receive the second message, including any of the following:
  • the priority of sending the first information is N TX, the highest priority of the first information and the first information, and the priority of receiving the second information is N RX, the highest priority of the second information and the second information. If the priority of sending the first information is higher than the priority of receiving the second information, choose to send the first information; otherwise, receive the second information;
  • n TXs There are n TXs, and the priority of the first information is greater than the third threshold.
  • n RXs There are n RXs, and the priority of the second information is greater than the fourth threshold. If n TX, the first information is greater than or equal to n RX, the second information , choose to send the first information; otherwise, receive the second information.
  • the first terminal can transmit the first information according to the transmission priority of the first information and the transmission of the second information.
  • Priority determines receiving the first message, or sending the second message, including any of the following:
  • the priority for receiving the first information is N RX, which is the highest priority among the first information and the first information.
  • the priority for sending the second information is N TX, which is the highest priority among the second information and the second information. class. If the priority of receiving the first information is higher than the priority of sending the second information, select to receive the first information; otherwise, send the second information;
  • n RXs There are n RXs, and the priority of the first information is greater than the seventh threshold. There are n TX, and the priority of the second information is greater than the eighth threshold. If n RX, the first information is greater than or equal to n TX, the second information , choose to receive the first information; otherwise, send the second information.
  • the above-mentioned first information may be carried on the PSSCH, and the second information may be carried on the PSFCH.
  • the method may further include:
  • the first terminal uses formula (1) to calculate the number of resource units RE available for PSSCH in a physical resource block PRB N′ RE :
  • the above third overhead may include at least one of the following:
  • the first transmission resource of the first terminal on the first carrier overlaps with the first opportunity and/or the first reception resource of the first terminal on at least one second carrier;
  • the first transmission resource of the first terminal on the first carrier overlaps with the second timing and/or second transmission resource of the second terminal on at least one third carrier;
  • the first terminal or the second terminal when determining the Transport Block Set (TBS) on the carrier, can calculate the TB size based on the resources after puncturing and subtract the overhead of the overlapping portion.
  • TBS Transport Block Set
  • the third overhead when determining the available resource elements (Resource Element, RE), the third overhead can be subtracted from the scheduling symbol, that is, when determining the available RE in a physical resource block (Physical Resource Block, PRB), the third overhead can be On the sign of the formula, subtract the third overhead
  • n PRB is the number of PRBs occupied by PSSCH
  • N R ′ E is the number of REs that can be used for PSSCH in a PRB.
  • sl-X-Overhead which is used to represent the phase-tracking reference signal (PT-RS) and the channel state information reference signal (Channel State Information- Number of REs occupied by Reference Signal, CSI-RS);
  • the method may further include:
  • the first terminal uses formula (2) to calculate the number of REs Q′ SCI2 occupied by the second-order side link control information SCI:
  • O SCI2 represents the number of bits of the second-order SCI information
  • L SCI2 represents the cyclic redundancy check (CRC) length of the second-order SCI
  • Characterizes the code rate offset of the second-order SCI represents the modulation order of the second-order SCI
  • R represents the code rate corresponding to the MCS index indicated in the modulation and coding scheme (MCS) indication field of the first-order SCI
  • ⁇ represents the radio resource control (Radio Resource The maximum spectral efficiency of the second-order SCI configured by Control, RRC)
  • Characterizes the number of REs that can be used to map the second-order SCI on the first Orthogonal Frequency Division Multiplexing (OFDM) symbol represents the number of symbols occupied by PSFCH, and ⁇ represents the number of remaining REs in the PRB where the last second-order SCI modulation symbol is located;
  • OFDM Orthogonal Frequency Division Multiplexing
  • the above fourth overhead includes at least one of the following:
  • O SCI2 represents the number of second-order SCI information bits, which can be determined by the format of the second-order SCI;
  • L SCI2 represents the CRC length of the second-order SCI, for example, 24 bits
  • R represents the code rate corresponding to the MCS index indicated in the MCS indication field in the first-order SCI
  • ⁇ can be from 0 to 11, indicating the number of remaining REs in the PRB where the last second-order SCI modulation symbol is located. This parameter is used to ensure that the resources occupied by the second-order SCI are an integer number of PRBs;
  • ⁇ represents the maximum spectral efficiency of the second-order SCI of the RRC configuration.
  • the first terminal when there is a problem of transmission and reception conflict on different carriers, the first terminal performs rate matching or hole punching on the first transmission resource to obtain the target transmission resource, and based on the target transmission resource Send M1 first information; or the first terminal determines to send the first information or receive the second information based on the priority of the M1 first information to be sent and the priority of the M2 second information to be received, thereby solving the problem of carrier
  • the problem of sending and receiving conflicts on different carriers in aggregation scenarios can improve SL transmission performance.
  • the SL data transmission method provided by the embodiment of the present application can be applied to the second terminal.
  • the second terminal is used as the receiving end as an example for explanation, but the second terminal is not limited to only receiving SL data. .
  • FIG. 4 is a second schematic flowchart of the SL data transmission method provided by the embodiment of the present application. As shown in Figure 4, the method includes step 401; wherein:
  • Step 401 When the second event is satisfied, the second terminal performs rate matching or demodulation or reception on the third reception resource on the first carrier to obtain the target reception resource; the second terminal receives N1 based on the target reception resource. third information;
  • the second terminal receives each third information or sends each fourth information based on the priorities of N1 third information and N2 fourth information; the third receiving resource is used by the second terminal to receive each third information. .
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth timing and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send each fourth information;
  • the second terminal receives a third message from the first terminal.
  • the third message is used to indicate the fifth transmission resource of the first terminal on the first carrier and the fifth opportunity of the first terminal on at least one seventh carrier and/ Or the fourth receiving resources overlap; the fifth sending resources are used by the first terminal to send third information to the second terminal;
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives the second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or to instruct the second terminal to perform SL reception based on the first terminal.
  • the pattern after rate matching or punching is used for SL reception.
  • the second terminal may, when the second event is satisfied, specifically between the third receiving resource on the first carrier and other carriers. If the timing or transmission resources of the carrier overlap, or the transmission resource corresponding to the third reception resource, that is, the fifth transmission resource overlaps with the timing or reception resources on other carriers, perform the following steps to resolve the transmission and reception conflict:
  • the second terminal performs rate matching or demodulation or reception on the third receiving resource on the first carrier to obtain the target receiving resource without transceiver conflict, and then the second terminal receives the N1th receiving resource based on the target receive resource without transceiver conflict.
  • Three messages can effectively solve the problem of sending and receiving conflicts of different carriers.
  • the second terminal may also receive each third information or send each fourth information based on the priorities of N1 third information and N2 fourth information, so as to avoid transmission and reception conflicts caused by simultaneous transmission and reception of information.
  • the third information received by the second terminal here may be the first information sent by the first terminal based on the target transmission resource
  • the fourth information sent by the second terminal here may be the third information received by the first terminal.
  • the second event may include any of the following:
  • the third receiving resource overlaps with the fourth timing and/or the fourth sending resource of the second terminal on at least one sixth carrier; wherein the fourth sending resource is used for the second terminal to send each fourth information;
  • the above-mentioned third receiving resource may be a resource used for receiving.
  • the above-mentioned fourth opportunity can be understood as resources reserved on at least one sixth carrier for transmitting or receiving PSFCH.
  • the above-mentioned fourth sending resource may be a resource used for sending.
  • the second terminal receives the third message from the first terminal; wherein the third message is used to indicate that the first terminal's fifth transmission resource on the first carrier is the same as the first terminal's third transmission resource on at least one seventh carrier.
  • the first terminal may have an overlap between the fifth sending resource on the first carrier and the fifth timing and/or the fourth receiving resource of the first terminal on at least one seventh carrier, that is, when the first terminal of sending resources and When the timing and/or transmission resources on other carriers overlap, a third message is sent to the receiving end corresponding to the fifth transmission resource, that is, to the second terminal to instruct the second terminal to pair the transmission resource corresponding to the fifth transmission resource.
  • the third receiving resource performs rate matching or demodulation or reception;
  • the second terminal After receiving the third message, the second terminal will perform rate matching, demodulation, or reception on the third receiving resource to avoid transceiver conflicts on the fifth sending resource.
  • the first terminal may not inform the second terminal of the third message through higher layer notification or signaling.
  • the above-mentioned third message is used to indicate that the first terminal has a transceiver conflict at one or more locations, symbols or timings on one or more carriers and is unavailable for transmission or can only be used for reception, or is used to indicate that the second terminal is in One or more locations, symbols, or occasions on one or more carriers are unavailable for reception.
  • the above-mentioned fifth sending resource may be a resource used for sending.
  • the above-mentioned fourth receiving resource may be a resource used for receiving.
  • the above-mentioned fifth opportunity may be a PSFCH opportunity.
  • the receiving end corresponding to the fifth sending resource may be notified through a higher layer notification or by sending signaling, that is, notifying the second terminal that there is a transceiver conflict in the fifth sending resource, or notifying the second terminal of one or more transmission resources on one or more carriers.
  • the position, symbol or timing is not available for reception; after receiving the notification, the second terminal will rate match or demodulate or receive the third receiving resource to avoid a transceiver conflict with the fifth transmitting resource.
  • the second terminal can also determine the fifth transmission resource and the fifth reception resource corresponding to the second reception resource by detecting the second reception resource. Whether there is overlap, and further, based on the overlapping portion of the fifth transmission resource and the fifth reception resource, it can be determined that one or more positions, symbols or opportunities of the second terminal on one or more carriers are not available for reception.
  • the above-mentioned sixth opportunity may be a PSFCH opportunity.
  • the above-mentioned fifth receiving resource may be a resource used for receiving.
  • the second terminal receives the second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or to instruct the second terminal to perform SL reception based on the first
  • the terminal performs rate matching or punches the pattern to receive SL.
  • the above-mentioned second indication information can be used to indicate the first overhead in the process of determining the transport block size (TB size) and the process of determining the number of second-order SCI symbols;
  • the information may be used to indicate how the first terminal performs rate matching or hole punching
  • it can be used to indicate how to perform rate matching, demodulation or reception related information
  • the carrier information may be used to indicate the existence of a transceiver conflict.
  • the above-mentioned second indication information may be carried by PSCCH or PSSCH.
  • At least two carriers involved above can satisfy at least one of the following:
  • the SCS of the carriers are the same or different;
  • the second terminal when the second event is satisfied, for example, the third receiving resource of the second terminal on the first carrier overlaps with the timing or transmitting resource on other carriers, or the third When the transmission resource corresponding to the reception resource, that is, the fifth transmission resource overlaps with the timing or reception resources on other carriers, the second terminal will perform rate matching or demodulation or reception of the third reception resource to obtain no transmission and reception conflict.
  • target receiving resources and receive N1 third information based on the target receiving resources; or, the second terminal receives the N1 third information based on the priority of the N1 third information that needs to be received and the N2 fourth information that needs to be sent.
  • the third information or the sending of the fourth information solves the problem of sending and receiving conflicts of different carriers during carrier aggregation, thereby improving SL transmission performance.
  • the above third receiving resource may include at least one of the following:
  • the above-mentioned fourth opportunity, fifth opportunity and/or sixth opportunity may include at least one of the following:
  • the PSFCH timing may include PSFCH, PSFCH AGC and PSFCH GP.
  • the above-mentioned fourth sending resource may include at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for transmission are 1) Periodic reserved resources and/or non-periodic reserved resources for transmission
  • the above-mentioned fourth receiving resource and/or fifth receiving resource may include at least one of the following:
  • the fifth sending resource mentioned above may include at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for transmission are 1) Periodic reserved resources and/or non-periodic reserved resources for transmission
  • the above-mentioned second overhead may include at least one of the following:
  • the second terminal performs rate matching on the third receiving resource on the first carrier, which may include:
  • the second terminal When determining the resource mapping of the third receiving resource on the first carrier, the second terminal satisfies at least one of the following:
  • the third receiving resource matches the position or symbol solution rate without overlapping with the fourth timing and/or the fourth transmitting resource on at least one sixth carrier;
  • the third receiving resource does not overlap with the position or symbol solution rate of the fourth timing and/or the fourth transmitting resource on at least one sixth carrier;
  • the third receiving resource matches the position or symbol solution rate without overlapping with the fifth opportunity and/or the fourth receiving resource on at least one seventh carrier;
  • the third receiving resource does not overlap with the fifth opportunity and/or the fourth receiving resource on at least one seventh carrier in a position or symbol solution rate match;
  • the third receiving resource is matched at a position or symbol solution rate that does not overlap with the sixth opportunity and/or the fifth receiving resource on at least one eighth carrier;
  • the third reception resource does not overlap with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier in a position or symbol solution rate match.
  • the implementation of the second terminal demodulating or receiving the third receiving resource on the first carrier may include:
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the fourth opportunity and/or the fourth transmission resource on at least one sixth carrier;
  • the third receiving resource is not demodulated or received at a position or symbol that overlaps with the fourth timing and/or the fourth transmitting resource on at least one sixth carrier;
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the fifth opportunity and/or the fourth reception resource on at least one seventh carrier;
  • the third reception resource is not demodulated or received at a position or symbol that overlaps with the fifth opportunity and/or the fourth reception resource on at least one seventh carrier;
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier;
  • the third reception resource is not demodulated or received at a position or symbol that overlaps with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier.
  • the implementation manner in which the second terminal performs rate matching or demodulation or reception on the third receiving resource on the first carrier may include:
  • the second terminal performs rate matching or demodulation or reception on the third receiving resource on the first carrier based on the target pattern
  • the target pattern includes at least one of the following:
  • the second terminal when the second event is met, sends first indication information to the first terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead. , or relevant information instructing the first terminal to perform rate matching or hole punching;
  • the first overhead includes at least one of the following:
  • the above-mentioned first indication information may, for example, be used to indicate the first overhead during the TB size determination process and the second-order SCI symbol number determination process;
  • information that can be used to indicate how to rate match or punch holes As another example, information that can be used to indicate how to rate match or punch holes
  • the carrier information may be used to indicate the existence of a transceiver conflict.
  • the above-mentioned first indication information may be carried by PSCCH or PSSCH.
  • the second terminal receives each third information or sends each fourth information based on the priority of N1 third information and the priority of N2 fourth information, including:
  • the second terminal determines the receiving priority corresponding to each third information and the sending priority corresponding to each fourth information based on the priority of each third information and the priority of N2 fourth information; wherein, the receiving priority is the priority of each third information.
  • the highest priority among the three messages, the sending priority is the highest priority among the fourth messages;
  • the second terminal receives each third information
  • the second terminal receives each third information
  • the second terminal When the receiving priority is lower than the sending priority, the second terminal sends each fourth information
  • the second terminal receives each third information
  • the second terminal receives each third information
  • the second terminal sends each fourth information
  • the second terminal When the reception priority is equal to the seventh threshold, the second terminal sends each fourth information
  • the second terminal sends each piece of fourth information
  • the second terminal sends each piece of fourth information
  • the second terminal receives each third information
  • the second terminal receives each third information
  • the second terminal receives each third information
  • the second terminal sends each fourth information
  • the second terminal receives each piece of third information.
  • the second terminal uses formula (3) to calculate a physical The number of resource units RE available for PSSCH in the resource block PRB N′ RE :
  • the above fifth overhead may include at least one of the following:
  • the second terminal uses formula (4) to calculate the second reception resource based on the target reception resource.
  • the number of REs occupied by the side-stage link control information SCI Q ′ SCI2 is the number of REs occupied by the side-stage link control information SCI Q ′ SCI2 :
  • O SCI2 represents the number of bits of the second-order SCI information
  • L SCI2 represents the CRC length of the second-order SCI
  • R represents the code rate corresponding to the MCS index indicated in the MCS indication field in the first-order SCI
  • ⁇ represents the maximum spectrum efficiency of the second-order SCI configured by the radio resource control RRC.
  • Rate Represents the number of REs that can be used to map the second-order SCI on the first OFDM symbol, represents the number of symbols occupied by PSFCH, and ⁇ represents the number of remaining REs in the PRB where the last second-order SCI modulation symbol is located;
  • the above sixth overhead may include at least one of the following:
  • O SCI2 represents the number of second-order SCI information bits, which can be determined by the format of the second-order SCI;
  • L SCI2 represents the CRC length of the second-order SCI, for example, 24 bits
  • R represents the code rate corresponding to the MCS index indicated in the MCS indication field in the first-order SCI
  • ⁇ can be from 0 to 11, indicating the number of remaining REs in the PRB where the last second-order SCI modulation symbol is located. This parameter is used to ensure that the resources occupied by the second-order SCI are an integer number of PRBs;
  • ⁇ represents the maximum spectral efficiency of the second-order SCI of the RRC configuration.
  • Figure 5 is the second schematic diagram of resource distribution on different CCs provided by the embodiment of the present application.
  • the first terminal is configured with CC1 and CC2, where the slot format lengths of CC1 and CC2 are both It has 14 symbols, PSFCH is not configured on CC1, and PSFCH is configured on CC2. It can be seen that the PSFCH is on CC1.
  • the PSSCH sent overlaps with the PSFCH occasion on CC2, including the two symbols of PSFCH (symbol #11, symbol #12).
  • the GP symbol of the PSFCH of CC2 is also the GP symbol of the PSSCH of CC1, and this symbol is not transmitted.
  • the first terminal performs rate matching on the PSSCH, that is, the PSSCH is not mapped to symbol #11, symbol #12.
  • the number of REs that can be used for PSSCH in a PRB is calculated based on formula (1):
  • the fourth overhead is subtracted from the scheduling symbol. That is, when determining the OFDM symbols available in a time slot, it is calculated based on formula (2):
  • FIG. 6 is the third schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • the first terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • PSFCH is configured on CC2.
  • the PSSCH to be sent on CC1 and the PSFCH to be received on CC2 overlap, including the two symbols of PSFCH (symbol #11, symbol #12), and the PSFCH of CC2.
  • the GP symbol is also the GP symbol of the PSSCH of CC1. This symbol is not transmitted.
  • the first terminal performs rate matching on the PSSCH when determining the PSSCH resource mapping to be sent on CC1, that is, the PSSCH is not mapped to symbol #11 and symbol #12. .
  • Figure 7 is the fourth schematic diagram of resource distribution on different CCs provided by the embodiment of the present application.
  • the second terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • PSFCH is configured on CC2.
  • the PSSCH to be received on CC1 (the sending end of the PSSCH to be received is the first terminal) and the PSFCH to be sent on CC2 overlap, including the two symbols of PSFCH. (Symbol #11, Symbol #12), the GP symbol of CC2's PSFCH is also the GP symbol of CC1's PSSCH.
  • This symbol is not transmitted, and the second terminal informs the first through higher layer notification or signaling.
  • the first message of the terminal indicates that the symbol #11 and symbol #12 of the first terminal on CC1 are not available for transmission.
  • the first terminal determines the PSSCH resource mapping to be sent on CC1, it performs rate matching on the PSSCH, that is, the PSSCH is not mapped.
  • the second terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • There is no PSFCH configured on CC1 PSFCH is configured on CC2, and the PSSCH to be received on CC1 (PSSCH to be received)
  • the sending end is the first terminal) and the PSFCH to be sent on CC2 (the receiving end of the PSFCH to be sent is the first terminal) has overlapping parts, including the two symbols of PSFCH (symbol #11, symbol #12), the PSFCH of CC2
  • the GP symbol is also the GP symbol of PSSCH of CC1. This symbol is not transmitted.
  • the first terminal performs rate matching on PSSCH when determining the PSSCH resource mapping to be sent on CC1, that is, PSSCH does not map symbol #11 and symbol #12. . It can be understood that the first terminal can determine that there is a conflict by itself based on the mapping of PSSCH and PSFCH, and does not necessarily need notification from the second terminal.
  • Figure 8 is the fifth schematic diagram of resource distribution on different CCs provided by the embodiment of the present application.
  • the PSSCH to be received by the second terminal on CC1 (the sending end of the PSSCH to be received is the first terminal) and
  • the second terminal detects that the PSSCH to be sent by other terminals on CC2 has an overlapping part (symbol #6 and symbol #7), then the first terminal performs rate matching on the PSSCH when determining the resource mapping of the PSSCH to be sent on CC1, That is, PSSCH does not map symbol #6 and symbol #7.
  • the second terminal detects the PSSCH to be sent by the second terminal on CC1 (the sending end of the PSSCH to be received is the first terminal) and the second terminal detects the PSSCH to be sent by other terminals on CC2 (the receiving end of the PSSCH to be sent is the first terminal).
  • the first terminal has overlapping parts (symbol #6 and symbol #7), then the first terminal performs rate matching on PSSCH when determining the PSSCH resource mapping to be sent on CC1, that is, PSSCH does not map symbol #6, symbol #7 .
  • FIG. 9 is the sixth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • the second terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • the PSSCH to be received on CC1 overlaps with the PSFCH occasion on CC21, including the two symbols of PSFCH (symbol #11, symbol #12), and the GP symbol of PSFCH of CC2 is also The GP symbol of the PSSCH of CC1 is not transmitted.
  • the second terminal performs SL reception on CC1, it will not perform rate matching on symbol #11 and symbol #12 for the PSSCH to be received.
  • the number of REs that can be used for PSSCH in a PRB is calculated based on formula (6):
  • the sixth overhead is subtracted from the scheduling symbol. That is, when determining the OFDM symbols available in a time slot, it is calculated based on formula (2):
  • Figure 10 is the seventh schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • the second terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • symbol #11 is not used.
  • Symbol #12 performs rate matching on the PSSCH to be received.
  • Figure 11 is the eighth schematic diagram of resource distribution on different CCs provided by the embodiment of this application.
  • the first terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • PSFCH is configured on CC2.
  • This symbol is not transmitted, and the first terminal informs the second terminal of the third message through higher layer notification or signaling, indicating that the second terminal
  • the terminal's symbols #11 and #12 on CC1 are not available for reception.
  • symbol #11 and symbol #12 are not used for rate matching on the PSSCH to be received.
  • the first terminal is configured with CC1 and CC2, in which the slot format length of CC1 and CC2 is 14 symbols.
  • There is no PSFCH configured on CC1 PSFCH is configured on CC2, and the PSSCH to be sent on CC1 (PSSCH to be sent)
  • the receiving end is the second terminal) and the PSFCH to be received on CC2 (the sending end of the PSSCH to be received is the first terminal) has overlapping parts, including the two symbols of PSFCH (symbol #11, symbol #12), the PSFCH of CC2
  • the GP symbol is also the GP symbol of PSSCH of CC1. This symbol is not When transmitting, when the second terminal performs SL reception on CC1, it does not perform rate matching on symbol #11 but symbol #12 on the PSSCH to be received.
  • Figure 12 is the ninth schematic diagram of resource distribution on different CCs provided by the embodiment of the present application.
  • the PSSCH to be sent by the first terminal on CC1 (the receiving end of the PSSCH to be sent is the second terminal) and The first terminal detects that there is an overlapping portion (symbol #6 and symbol #7) of the PSSCH to be received by other terminals on CC2.
  • symbol #11 is not used and symbol #12 is to be received.
  • PSSCH performs rate matching.
  • the PSSCH to be sent by the first terminal on CC1 (the receiving end of the PSSCH to be sent is the second terminal) and the first terminal detects the PSSCH to be received by other terminals on CC2 (the sending end of the PSSCH to be received is the second terminal).
  • the second terminal has overlapping parts (symbol #6 and symbol #7). When the second terminal performs SL reception on CC1, it does not perform rate matching on symbol #11 but symbol #12 for the PSSCH to be received.
  • the execution subject may be an SL data transmission device.
  • the SL data transmission device performing the SL data transmission method is taken as an example to illustrate the SL data transmission device provided by the embodiment of the present application.
  • Figure 13 is one of the structural schematic diagrams of the SL data transmission device provided by the embodiment of the present application. As shown in Figure 13, the SL data transmission device 1300 is applied to the first terminal and includes:
  • each of the first information is sent or each of the second information is received; the first sending resource is used by the first terminal to send each piece of said second information.
  • the first event includes at least one of the following:
  • the first sending resource overlaps with the first opportunity and/or the first receiving resource of the first terminal on at least one second carrier; the first receiving resource is used for the first terminal to receive M2 pieces of second information;
  • the first terminal receives a first message from the second terminal, the first message is used to indicate that the second receiving resource of the second terminal on the first carrier is consistent with the second receiving resource of the second terminal on the first carrier. There is overlap in the second timing and/or the second sending resource on at least one third carrier; the second receiving resource is used for the second terminal to receive each of the first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or instruct Information related to rate matching or hole punching by the first terminal.
  • the first transmission resource is rate matched or punched to obtain the target transmission resource, and M1 are transmitted based on the target transmission resource.
  • first information or based on the priority of M1 first information to be sent and the priority of M2 second information to be received, determine whether to send the first information or receive the second information, thereby solving the differences that exist in the carrier aggregation scenario.
  • the problem of sending and receiving conflicts on the carrier can improve SL transmission performance.
  • the sending module 1301 is specifically configured to determine the resource mapping of the first sending resource on the first carrier
  • the first transmission resource has no overlapping position or symbol mapping with the first opportunity and/or the first reception resource on at least one second carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with the first opportunity and/or the first reception resource on at least one second carrier;
  • the first transmission resource has no overlapping position or symbol mapping with the second opportunity and/or the second transmission resource on at least one third carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with the second opportunity and/or the second transmission resource on at least one third carrier;
  • the first transmission resource has no overlapping position or symbol mapping with the third transmission resource on at least one fourth carrier;
  • the first transmission resource does not have an overlapping position or symbol mapping with a third transmission resource on at least one fourth carrier.
  • the sending module 1301 is specifically configured to puncture the first sending resource on the first carrier;
  • the first sending resource is sent at a position or symbol that does not overlap with the first timing and/or the first receiving resource on at least one second carrier;
  • the first transmission resource is not transmitted in a position or symbol that overlaps with the first opportunity and/or the first reception resource on at least one second carrier;
  • the first transmission resource is transmitted at a position or symbol that does not overlap with the second timing and/or the second transmission resource on at least one third carrier;
  • the first transmission resource is not transmitted in a position or symbol that overlaps with the second timing and/or the second transmission resource on at least one third carrier;
  • the first transmission resource is transmitted at a position or symbol that does not overlap with the third transmission resource on at least one fourth carrier;
  • the first transmission resource is not transmitted in a position or symbol that overlaps with the third transmission resource on at least one fourth carrier.
  • the sending module 1301 is also configured to determine the demodulation reference signal DMRS pattern on the first carrier based on the target sending resource;
  • the sending module 1301 is also used to select a DMRS pattern on the first carrier; the DMRS pattern satisfies at least one of the following:
  • the DMRS pattern does not overlap with the first opportunity and/or the first reception resource of the first terminal on at least one second carrier;
  • the DMRS pattern is not punched
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the first opportunity and/or the first reception resource of the first terminal on at least one second carrier;
  • the DMRS pattern does not overlap with the second opportunity and/or the second transmission resource of the second terminal on at least one third carrier;
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the second timing and/or second transmission resource of the second terminal on at least one third carrier;
  • the DMRS pattern does not overlap with the third transmission resource of the second terminal and/or the third terminal on at least one fourth carrier;
  • the DMRS pattern is not within the overlapping portion of the first transmission resource on the first carrier and the third transmission resource of the second terminal and/or the third terminal on at least one fourth carrier.
  • the sending module 1301 is further configured to send second indication information to the second terminal when the first event is met; the second indication information is used to instruct the second terminal to perform the operation based on the second
  • the overhead is to perform SL reception on one or more carriers, or instruct the second terminal to perform SL reception based on the pattern after rate matching or puncturing by the first terminal;
  • the second overhead includes at least one of the following:
  • the first sending resource includes at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for sending are Periodic reserved resources and/or non-periodic reserved resources for sending
  • the first opportunity and/or the second opportunity include at least one of the following:
  • the first receiving resource includes at least one of the following:
  • the second sending resource and/or the third sending resource include at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for sending are Periodic reserved resources and/or non-periodic reserved resources for sending
  • the second receiving resource includes at least one of the following:
  • the sending module 1301 is further specifically configured to determine the sending priority corresponding to each of the first information and each of the second information based on the priority of each of the first information and the priority of M2 second information.
  • the corresponding receiving priority wherein, the sending priority is the highest priority in each of the first information, and the receiving priority is the highest priority in each of the second information;
  • the sending module 1301 is also specifically configured to perform any of the following based on the sending priority and the receiving priority:
  • the first terminal When the sending priority is higher than the receiving priority, the first terminal sends each of the first information
  • the first terminal sends each of the first information
  • the first terminal receives each of the second information
  • the first terminal receives each of the second information
  • the first terminal When the sending priority is greater than the first threshold, the first terminal sends each of the first information
  • the first terminal When the sending priority is equal to the first threshold, the first terminal sends each of the first information
  • the first terminal When the sending priority is less than the first threshold, the first terminal receives each of the second information;
  • the first terminal receives each of the second information
  • the first terminal When the reception priority is greater than the second threshold, the first terminal receives each of the second information
  • the first terminal receives each of the second information
  • the first terminal When the reception priority is less than the second threshold, the first terminal sends each of the first information
  • the first terminal When the reception priority is equal to the second threshold, the first terminal sends each of the first information
  • the first terminal sends each of the first information
  • the first terminal sends each of the first information
  • the first terminal receives each of the second information
  • the first terminal receives each of the second information
  • the first terminal sends each of the first information
  • the first terminal receives each of the second information
  • the first terminal When there is at least one second information with a priority greater than or equal to the sixth threshold, the first terminal receives each of the second information; when the priority of each of the second information is less than or equal to the sixth threshold In this case, the first terminal sends each of the first information.
  • the sending module 1301 is also configured to calculate the number of resource units RE N′ RE that can be used for PSSCH in one physical resource block PRB based on the target sending resources using formula (1):
  • the third overhead includes at least one of the following:
  • the first transmission resource of the first terminal on the first carrier overlaps with the first opportunity and/or first reception resource of the first terminal on at least one second carrier;
  • the first transmission resource of the first terminal on the first carrier overlaps with the second timing and/or second transmission resource of the second terminal on at least one third carrier;
  • the first transmission resource of the first terminal on the first carrier and the third transmission resource of the second terminal and/or the third terminal on at least one fourth carrier have an overlapping number of symbols.
  • the sending module 1301 is also configured to calculate the number of REs Q′ SCI2 occupied by the second-order side link control information SCI based on the target sending resources using formula (2):
  • O SCI2 represents the number of bits of the second-order SCI information
  • L SCI2 represents the CRC length of the second-order SCI
  • It represents the modulation order of the second-order SCI
  • R represents the code rate corresponding to the MCS index indicated in the MCS indication field of the modulation and coding strategy in the first-order SCI
  • ⁇ represents the second-order SCI of the radio resource control RRC configuration.
  • the fourth overhead includes at least one of the following:
  • the first transmission resource of the first terminal on the first carrier and the third transmission resource of the second terminal and/or the third terminal on at least one fourth carrier have overlapping symbols.
  • the first overhead includes at least one of the following:
  • Figure 14 is the second structural schematic diagram of the SL data transmission device provided by the embodiment of the present application. As shown in Figure 14, the SL data transmission device 1400 is applied to the second terminal and includes:
  • the receiving module 1401 is used to: when the second event is met:
  • the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the third information based on the priority of N1 third information and the priority of N2 fourth information, receive each of the third information or send each of the fourth information; the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth timing and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send N2 pieces of fourth information ;
  • the second terminal receives a third message from the first terminal, the third message is used to indicate that the fifth transmission resource of the first terminal on the first carrier is the same as that of the first terminal on the first carrier.
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or instruct The second terminal performs SL reception based on the pattern pattern after rate matching or puncturing by the first terminal.
  • the receiving module when the second event is satisfied, for example, the third receiving resource of the second terminal on the first carrier overlaps with the timing or transmitting resource on other carriers, or the third When the sending resource corresponding to the receiving resource, that is, the fifth sending resource overlaps with the timing or receiving resources on other carriers, the receiving module will perform derate matching or demodulation or reception on the third receiving resource to obtain a signal without any sending and receiving conflicts.
  • the target receiving resource receives N1 third information based on the target receiving resource; or, the receiving module receives the third information based on the priority of N1 third information that needs to be received and the priority of N2 fourth information that needs to be sent. Or sending fourth information, which solves the problem of sending and receiving conflicts of different carriers during carrier aggregation, thereby improving SL transmission performance.
  • the receiving module 1401 is specifically configured to determine the resource mapping of the third receiving resource on the first carrier
  • the third receiving resource is matched at a position or symbol solution rate that does not overlap with the fourth timing and/or the fourth transmitting resource on at least one sixth carrier;
  • the third receiving resource does not overlap with the position or symbol solution rate of the fourth timing and/or the fourth transmitting resource on at least one sixth carrier;
  • the third receiving resource is matched at a position or symbol solution rate that does not overlap with the fifth opportunity and/or the fourth receiving resource on at least one seventh carrier;
  • the third reception resource does not overlap with the fifth opportunity and/or the fourth reception resource on at least one seventh carrier in a position or symbol solution rate match;
  • the third reception resource is matched at a position or symbol solution rate that does not overlap with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier;
  • the third reception resource does not overlap with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier in a position or symbol solution rate match.
  • the receiving module 1401 is also specifically configured to demodulate or receive the third receiving resource on the first carrier; when demodulating or receiving the third receiving resource on the first carrier, it satisfies At least one of the following:
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the fourth opportunity and/or the fourth transmission resource on at least one sixth carrier;
  • the third receiving resource is not demodulated or received at a position or symbol that overlaps with the fourth opportunity and/or the fourth transmitting resource on at least one sixth carrier;
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the fifth opportunity and/or the fourth reception resource on at least one seventh carrier;
  • the third reception resource is not demodulated or received at a position or symbol that overlaps with the fifth opportunity and/or the fourth reception resource on at least one seventh carrier;
  • the third reception resource is demodulated or received at a position or symbol that does not overlap with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier;
  • the third reception resource is not demodulated or received at a position or symbol that overlaps with the sixth opportunity and/or the fifth reception resource on at least one eighth carrier.
  • the receiving module 1401 is also specifically configured to perform rate matching or demodulation or reception on the third receiving resource on the first carrier based on the target pattern;
  • the target pattern includes at least one of the following:
  • the receiving module 1401 is further configured to send first indication information to the first terminal when the second event is met; the first indication information is used to instruct the first terminal to perform the operation based on the first Overhead is information related to performing SL transmission on one or more carriers, or instructing the first terminal to perform rate matching or puncturing;
  • the first overhead includes at least one of the following:
  • the third receiving resource includes at least one of the following:
  • the fourth opportunity, the fifth opportunity and/or the sixth opportunity include at least one of the following: PSFCH opportunity;
  • the fourth sending resource includes at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for sending are Periodic reserved resources and/or non-periodic reserved resources for sending
  • the fourth receiving resource and/or the fifth receiving resource includes at least one of the following:
  • the fifth sending resource includes at least one of the following:
  • Periodic reserved resources and/or non-periodic reserved resources for sending are Periodic reserved resources and/or non-periodic reserved resources for sending
  • the receiving module 1401 is further specifically configured to determine the receiving priority corresponding to each third information and each fourth information based on the priority of each third information and the priority of N2 fourth information. Corresponding sending priority; wherein, the receiving priority is the highest priority in each of the third information, and the sending priority is the highest priority in each of the fourth information;
  • the receiving module 1401 is also specifically configured to perform any of the following based on the receiving priority and the sending priority:
  • the second terminal receives each of the third information
  • the second terminal receives each of the third information
  • the second terminal When the receiving priority is lower than the sending priority, the second terminal sends each of the fourth information
  • the second terminal sends each of the fourth information
  • the second terminal receives each of the third information
  • the second terminal receives each of the third information
  • the second terminal When the reception priority is less than the seventh threshold, the second terminal sends each of the fourth information
  • the second terminal When the reception priority is equal to the seventh threshold, the second terminal sends each of the fourth information
  • the second terminal sends each of the fourth information
  • the second terminal sends each of the fourth information
  • the second terminal receives each of the third information
  • the second terminal receives each of the third information
  • the second terminal receives each of the third information
  • the second terminal receives each of the third information
  • the second terminal sends each of the fourth information
  • the second terminal sends each of the fourth information
  • the second terminal receives each of the third information
  • the second terminal sends each fourth information
  • the second terminal sends each of the fourth information
  • the second terminal receives each piece of third information.
  • the receiving module 1401 is also specifically configured to use formula (3) to calculate the number of resource units RE available for PSSCH in one physical resource block PRB based on the target receiving resources N′ RE :
  • the fifth overhead includes at least one of the following:
  • the third reception resource of the second terminal on the first carrier overlaps with the fourth timing and/or fourth transmission resource of the second terminal on at least one sixth carrier;
  • the third reception resource of the second terminal on the first carrier overlaps with the fifth opportunity and/or fourth reception resource of the first terminal on at least one seventh carrier;
  • the third reception resource of the second terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier. Number of symbols.
  • the receiving module 1401 is also specifically configured to calculate the number of REs Q′ SCI2 occupied by the second-order side link control information SCI based on the target receiving resources using formula (4):
  • O SCI2 represents the number of bits of the second-order SCI information
  • L SCI2 represents the CRC length of the second-order SCI
  • Characterizes the code rate offset of the second-order SCI Characterizes the modulation order of the second-order SCI
  • R represents the code rate corresponding to the MCS index indicated in the MCS indication field of the modulation and coding strategy in the first-order SCI
  • ⁇ represents the maximum spectrum of the second-order SCI configured by the radio resource control RRC efficiency
  • Characterizing the first Orthogonal Frequency Division Multiplexing technology OFDM symbols that can be used to map the The number of REs in the second-order SCI, represents the number of symbols occupied by PSFCH, and ⁇ represents the number of remaining REs in the PRB where the last second-order SCI modulation symbol is located;
  • the sixth overhead includes at least one of the following:
  • the third reception resource of the second terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier. symbol.
  • the second overhead includes at least one of the following:
  • the SL data transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the SL data transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiments of Figures 2 to 12, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1500 includes a processor 1501 and a memory 1502.
  • the memory 1502 stores programs that can run on the processor 1501. or instructions.
  • the communication device 1500 is a first terminal, when the program or instructions are executed by the processor 1501, each step of the first terminal side SL data transmission method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 1500 is a second terminal, when the program or instruction is executed by the processor 1501, each step of the second terminal side SL data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the steps are not included here. Again.
  • Embodiments of the present application also provide a first terminal, including a processor and a communication interface.
  • the communication interface is used when the first event is met:
  • each of the first information is sent or each of the second information is received; the first sending resource is used by the first terminal to send each piece of said second information.
  • the first event includes at least one of the following:
  • the first sending resources overlap with the first timing and/or the first receiving resources of the first terminal on at least one second carrier; the first receiving resources are used for the first terminal to receive M2 pieces of second information ;
  • the first terminal receives a first message from the second terminal, the first message is used to indicate that the second receiving resource of the second terminal on the first carrier is consistent with the second receiving resource of the second terminal on the first carrier. There is overlap in the second timing and/or the second sending resource on at least one third carrier; the second receiving resource is used for the second terminal to receive each of the first information from the first terminal;
  • the second receiving resources of the second terminal on the first carrier overlap with the third transmitting resources of the second terminal and/or the third terminal on at least one fourth carrier;
  • the first terminal receives first indication information from the second terminal; the first indication information is used to instruct the first terminal to perform SL transmission on one or more carriers based on the first overhead, or instruct Information related to rate matching or hole punching by the first terminal.
  • This first terminal embodiment corresponds to the above-mentioned first terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this first terminal embodiment and can achieve the same technical effect.
  • Figure 16 is a schematic structural diagram of a first terminal provided by an embodiment of the present application.
  • the first terminal 1600 includes but is not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, and a sensor. 1605, at least some components of the display unit 1606, the user input unit 1607, the interface unit 1608, the memory 1609, the processor 1610, and the like.
  • the first terminal 1600 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1610 through a power management system, thereby managing charging, discharging, and Power consumption management and other functions.
  • the first terminal structure shown in Figure 16 does not constitute a limitation on the first terminal.
  • the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be discussed here. Repeat.
  • the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042.
  • the graphics processor 16041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1607 includes a touch panel 16071 and at least one of other input devices 16072. Touch panel 16071, also known as touch screen.
  • the touch panel 16071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 16072 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 described again here.
  • the radio frequency unit 1601 after receiving downlink data from the network side device, the radio frequency unit 1601 can transmit it to the processor 1610 for processing; in addition, the radio frequency unit 1601 can send uplink data to the network side device.
  • the radio frequency unit 1601 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1609 may be used to store software programs or instructions as well as various data.
  • the memory 1609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 1609 may include volatile memory or nonvolatile memory, or memory 1609 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 1610 may include one or more processing units; optionally, the processor 1610 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1610.
  • Embodiments of the present application also provide a second terminal, including a processor and a communication interface.
  • the communication interface is used when the second event is satisfied:
  • the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the third information based on the priority of N1 third information and the priority of N2 fourth information, receive each of the third information or send each of the fourth information; the third receiving resource is used for the second terminal to receive each of the fourth information.
  • the second event includes at least one of the following:
  • the third receiving resource overlaps with the fourth opportunity and/or the fourth sending resource of the second terminal on at least one sixth carrier; the fourth sending resource is used for the second terminal to send the N2th four information;
  • the second terminal receives a third message from the first terminal, the third message is used to indicate that the fifth transmission resource of the first terminal on the first carrier is the same as that of the first terminal on the first carrier.
  • the fifth transmission resource of the first terminal on the first carrier overlaps with the sixth opportunity and/or fifth reception resource of the first terminal and/or the fourth terminal on at least one eighth carrier;
  • the second terminal receives second indication information from the first terminal; the second indication information is used to instruct the second terminal to perform SL reception on one or more carriers based on the second overhead, or instruct The second terminal performs SL reception based on the pattern pattern after rate matching or puncturing by the first terminal.
  • This second terminal embodiment corresponds to the above-mentioned second terminal-side method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this second terminal embodiment, and can achieve the same technical effect.
  • Figure 17 is a schematic structural diagram of a second terminal provided by an embodiment of the present application.
  • the second terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, and a sensor. 1705, at least some components of the display unit 1706, the user input unit 1707, the interface unit 1708, the memory 1709, the processor 1710, and the like.
  • the second terminal 1700 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1710 through a power management system, thereby managing charging, discharging, and Power consumption management and other functions.
  • the structure of the second terminal shown in Figure 17 does not constitute a limitation on the second terminal.
  • the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be discussed here. Repeat.
  • the input unit 1704 may include a graphics processing unit (Graphics Processing Unit, GPU) 17041 and a microphone 17042.
  • the graphics processor 17041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 1706 may include a display panel 17061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1707 includes a touch panel 17071 and at least one of other input devices 17072 . Touch panel 17071, also known as touch screen.
  • the touch panel 17071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 17072 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 described again here.
  • the radio frequency unit 1701 after receiving downlink data from the network side device, the radio frequency unit 1701 can transmit it to the processor 1710 for processing; in addition, the radio frequency unit 1701 can send uplink data to the network side device.
  • the radio frequency unit 1701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1709 may be used to store software programs or instructions as well as various data.
  • the memory 1709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 1709 may include volatile memory or nonvolatile memory, or memory 1709 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 1710 may include one or more processing units; optionally, the processor 1710 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1710.
  • Embodiments of the present application also provide an SL data transmission system, including: a first terminal and a second terminal.
  • the first terminal can be used to perform the steps of the first terminal side SL data transmission method as described above.
  • the third terminal The second terminal may be configured to perform the steps of the second terminal side SL data transmission method as described above.
  • Embodiments of the present application also provide a readable storage medium.
  • the readable storage medium may be volatile or non-volatile.
  • the readable storage medium stores a program or instructions. The program Or when the instruction is executed by the processor, each process of the above-mentioned SL data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An 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.
  • the processor is used to run programs or instructions to implement the above SL data transmission method embodiment. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above SL data transmission method.
  • Each process in the example can achieve the same technical effect. To avoid repetition, it will not be described again here.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented 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 a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte au domaine technique des communications, et concerne un procédé de transmission de données SL, un premier terminal, et un second terminal. Le procédé de transmission de données SL de modes de réalisation de la présente demande comprend les étapes suivantes : lorsqu'un premier événement est satisfait, un premier terminal effectue une mise en correspondance de débit ou un poinçonnage sur une première ressource d'envoi sur une première porteuse afin d'obtenir une ressource d'envoi cible ; le premier terminal envoie M1 éléments de premières informations sur la base de la ressource d'envoi cible ; ou, le premier terminal envoie chaque élément de premières informations ou reçoit chaque élément de secondes informations sur la base de la priorité des M1 éléments de premières informations et de la priorité de M2 éléments de secondes informations, la première ressource d'envoi étant utilisée pour que le premier terminal envoie chaque élément de premières informations.
PCT/CN2023/101387 2022-06-20 2023-06-20 Procédé de transmission de données sl, premier terminal et second terminal WO2023246774A1 (fr)

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CN202210701891.8 2022-06-20
CN202210701891.8A CN117320176A (zh) 2022-06-20 2022-06-20 Sl数据传输方法、第一终端及第二终端

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112398888A (zh) * 2019-08-15 2021-02-23 北京华为数字技术有限公司 一种通信方法及装置
WO2021062972A1 (fr) * 2019-09-30 2021-04-08 Oppo广东移动通信有限公司 Procédé et dispositif de transmission de données
CN113785649A (zh) * 2019-05-02 2021-12-10 三星电子株式会社 无线通信系统中用于侧链路反馈的发送和接收的方法和装置
WO2022111630A1 (fr) * 2020-11-30 2022-06-02 夏普株式会社 Procédé exécuté par un équipement utilisateur et équipement utilisateur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113785649A (zh) * 2019-05-02 2021-12-10 三星电子株式会社 无线通信系统中用于侧链路反馈的发送和接收的方法和装置
CN112398888A (zh) * 2019-08-15 2021-02-23 北京华为数字技术有限公司 一种通信方法及装置
WO2021062972A1 (fr) * 2019-09-30 2021-04-08 Oppo广东移动通信有限公司 Procédé et dispositif de transmission de données
WO2022111630A1 (fr) * 2020-11-30 2022-06-02 夏普株式会社 Procédé exécuté par un équipement utilisateur et équipement utilisateur

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