WO2023246774A1 - Sl数据传输方法、第一终端及第二终端 - Google Patents
Sl数据传输方法、第一终端及第二终端 Download PDFInfo
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- 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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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- 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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Abstract
本申请公开了一种SL数据传输方法、第一终端及第二终端,属于通信技术领域,本申请实施例的SL数据传输方法包括:在满足第一事件的情况下,第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;所述第一终端基于所述目标发送资源发送M1个第一信息;或者,第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于所述第一终端发送各所述第一信息。
Description
相关申请的交叉引用
本申请要求享有于2022年06月20日提交的名称为“SL数据传输方法、第一终端及第二终端”的中国专利申请202210701891.8的优先权,该申请的全部内容通过引用并入本文中。
本申请属于通信技术领域,具体涉及一种SL数据传输方法、第一终端及第二终端。
为了满足先进的长期演进(Long Term Evolution-Advanced,LTE-A)关于下行峰速达到1Gbps,上行峰速达到500Mbps的要求,需要提供最大100MHz的传输带宽,但由于大带宽的连续频谱的稀缺,故LTE-A提出了载波聚合(Carrier Aggregation,CA)的解决方案。载波聚合是将2个或更多的载波单元(Component Carrier,CC)聚合在一起以支持更大的传输带宽(最大为100MHz)。
在新空口(New Radio,NR)旁链路(Sidelink,SL)载波聚合应用中,用户设备(User Equipment,UE)可能在一个频带(band)内的多个载波单元上,同时发送物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH)且接收物理旁链路反馈信道(Physical Sidelink Feedback Channel,PSFCH)或PSSCH,导致不同载波的收发冲突。
发明内容
本申请实施例提供一种SL数据传输方法、第一终端及第二终端,能够解决不同载波的收发冲突问题。
第一方面,提供了一种旁链路SL数据传输方法,该方法包括:
在满足第一事件的情况下,
第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;所述第一终端基于所述目标发送资源发送M1个第一信息;
或者,第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于所述第一终端发送各所述第一信息;
其中,所述第一事件包括以下至少一项:
所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于所述第一终端接收M2个第二信息;
所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;
所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
第二方面,提供了一种旁链路SL数据传输方法,该方法包括:
在满足第二事件的情况下,
第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;所述第二终端基于所述目标接收资源接收N1个第三信息;
或者,第二终端基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;
其中,所述第二事件包括以下至少一项:
所述第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;
所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;
所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
第三方面,提供了一种旁链路SL数据传输装置,该装置包括:
发送模块,用于在满足第一事件的情况下,对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;并基于所述目标发送资源发送M1个第一信息;
或者,基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于第一终端发送各所述第一信息;
其中,所述第一事件包括以下至少一项:
所述第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于所述第一终端接收M2个第二信息;
所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;
所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
第四方面,提供了一种旁链路SL数据传输装置,该装置包括:
接收模块,用于在满足第二事件的情况下,对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;并基于所述目标接收资源接收N1个第三信息;
或者,基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;
其中,所述第二事件包括以下至少一项:
所述第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;
所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;
所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
第五方面,提供了一种第一终端,该第一终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种第一终端,包括处理器及通信接口;其中,所述通信接口用于在满足第一事件的情况下,对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;并基于所述目标发送资源发送M1个第一信息;
或者,基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于第一终端发送各所述第一信息;
其中,所述第一事件包括以下至少一项:
所述第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于所述第一终端接收M2个第二信息;
所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;
所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
第七方面,提供了一种第二终端,该第二终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第八方面,提供了一种第二终端,包括处理器及通信接口;其中,所述通信接口用于在满足第二事件的情况下,对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;并基于所述目标接收资源接收N1个第三信息;
或者,基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;
其中,所述第二事件包括以下至少一项:
所述第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;
所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;
所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
第九方面,提供了一种旁链路SL数据传输系统,包括:第一终端及第二终端,所述第一终端可用于执行如第一方面所述的方法的步骤,所述第二终端可用于执行如第二方面所述的方法的步骤。
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第二方面所述的方法。
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
在本申请实施例中,在存在不同载波上的收发冲突问题的情况下,第一终端对第一发送资源进行速率匹配或打孔,得到目标发送资源,并基于目标发送资源发送M1个第一信息;或第一终端基于待发送的M1个第一信息的优先级及待接收的M2个第二信息的优先级,确定发送第一信息或接收第二信息,从而解决载波聚合场景下存在的不同载波上的收发冲突问题,能够提高SL传输性能。
图1是本申请实施例可应用的无线通信系统的示意图;
图2是本申请实施例提供的SL数据传输方法的流程示意图之一;
图3是本申请实施例提供的不同CC上的资源分布示意图之一;
图4是本申请实施例提供的SL数据传输方法的流程示意图之二;
图5是本申请实施例提供的不同CC上的资源分布示意图之二;
图6是本申请实施例提供的不同CC上的资源分布示意图之三;
图7是本申请实施例提供的不同CC上的资源分布示意图之四;
图8是本申请实施例提供的不同CC上的资源分布示意图之五;
图9是本申请实施例提供的不同CC上的资源分布示意图之六;
图10是本申请实施例提供的不同CC上的资源分布示意图之七;
图11是本申请实施例提供的不同CC上的资源分布示意图之八;
图12是本申请实施例提供的不同CC上的资源分布示意图之九;
图13是本申请实施例提供的SL数据传输装置的结构示意图之一;
图14是本申请实施例提供的SL数据传输装置的结构示意图之二;
图15是本申请实施例提供的通信设备的结构示意图;
图16是本申请实施例提供的第一终端的结构示意图;
图17是本申请实施例提供的第二终端的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下
大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的通信系统,如第6代(6th Generation,6G)通信系统。
图1是本申请实施例可应用的无线通信系统的示意图,图1示出的无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。
网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、WLAN接入点或WiFi节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM),统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF),网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功
能(Application Function,AF)、位置管理功能(location manage function,LMF)、增强服务移动定位中心(Enhanced Serving Mobile Location Centre,E-SMLC)、网络数据分析功能(network data analytics function,NWDAF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的SL数据传输方法、第一终端及第二终端进行详细地说明。
本申请各实施例针对不同载波间存在收发冲突的问题,提供一种解决方案。为了便于更加清晰地理解本申请各实施例,首先对一些相关的技术知识进行如下介绍。
一、载波聚合
为了满足LTE-A下行峰速1Gbps,上行峰速500Mbps的要求,需要提供最大100MHz的传输带宽,但由于这么大带宽的连续频谱的稀缺,LTE-A提出了载波聚合的解决方案。
载波聚合是将2个或更多的载波单元聚合在一起以支持更大的传输带宽(最大为100MHz)。实际上,每个载波单元对应一个独立的小区。通常可以将1个载波单元等同于1个小区。每个载波单元的最大带宽为20MHz。为了高效地利用零碎的频谱,载波聚合支持不同载波单元之间的聚合:
(1)相同或不同带宽的载波单元;
(2)同一频带内,邻接或非邻接的载波单元;
(3)不同频带内的载波单元。
从基带(baseband)实现角度来看,这几种情况是没有区别的。这主要影响射频单元实现的复杂性。
二、旁链路(Sidelink,SL)
长期演进(Long Term Evolution,LTE)系统从第12个发布版本开始支持旁链路(SL),用于终端用户设备(User Equipment,UE)之间不通过网络设备进行直接数据传输。
LTE Sidelink设计支持两种资源分配模式,分别是调度资源分配(Scheduled resource allocation)模式与自主资源选择(autonomous resource selection)模式。前者由网络侧设备控制并为每个UE分配资源,后者由UE自主选择资源。
从第15个发布版本开始,LTE支持Sidelink载波汇聚。LTE Sidelink的CA与Uu接口(即下行链路downlink与上行链路uplink)不同,没有主载波(Primary component carrier,PCC)与辅载波(Secondary component carrier,SCC)之分。自主资源选择模式的UE在每个CC上独立进行资源感知(sensing)与资源预留。
LTE Sidelink的设计适用于特定的公共安全事务,例如火灾或地震等灾难场所进行紧急通讯,或车联网(vehicle to everything,V2X)通信等。车联网通信包括各种业务,例如,基本安全类通信,高级(自动)驾驶,编队,传感器扩展等等。由于LTE Sidelink只支持广播通信,因此主要用于基本安全类通信,其他高级V2X业务将通过NR Sidelink支持。
5G NR系统可用于LTE所不支持的6GHz以上工作频段,支持更大的工作带宽,NR系统也支持终端之间直接通信的Sidelink接口通信。
本申请实施例提供的SL数据传输方法,可应用于第一终端,本申请实施例以第一终端作为发送端为例进行说明,但并不限制第一终端仅用于发送SL数据。
图2是本申请实施例提供的SL数据传输方法的流程示意图之一,如图2所示,该方法包括步骤201;其中:
步骤201、在满足第一事件的情况下,第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;第一终端基于目标发送资源发送M1个第一信息;
或者,第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各第一信息或接收各第二信息;第一发送资源用于第一终端发送各第一信息。
其中,第一事件包括以下至少一项:
第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;第一接收资源用于第一终端接收各第二信息;
第一终端接收到来自第二终端的第一消息,第一消息用于指示第二终端在第一载波上的第二接收资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;第二接收资源用于第二终端接收来自第一终端的各第一信息;
第二终端在第一载波上的第二接收资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
第一终端接收到来自第二终端的第一指示信息;第一指示信息用于指示第一终端基于第一开销在一个或多个载波上进行SL发送,或指示第一终端进行速率匹配或打孔的相关信息。
需要说明的是,本申请实施例可应用于在SL应用载波聚合技术的场景中。
具体地,终端不能在一个频带,至少不能在一个频带内(intra band)的多个载波上同时收发数据,在NR SL应用载波聚合的技术时,由于NR SL支持多个子载波间隔,且物理副链路反馈信道(physical sidelink feedback channel,PSFCH)是根据资源池配置的,可能存在载波聚合的不同载波上的物理副链路共享信道(Pysical Sidelink Share Channel,PSSCH)和PSFCH存在重叠部分,图3是本申请实施例提供的不同CC上的资源分布示意图之一,如图3所示,CC1、CC2及CC3上的斜线阴影区域表征
载波上的发送资源,点阴影区域表征载波上的接收资源,图中无阴影的F区域表征载波上预留给PSFCH的时机,该区域既可以分布发送资源又可以分布接收资源。可见,CC1上用于发送的PSFCH发送资源,与CC2上用于接收的PSSCH接收资源存在重叠,并且,CC1上用于发送的PSFCH发送资源,还与CC3上用于接收的PSSCH接收资源存在重叠,如果终端要在载波聚合的不同载波上的PSSCH和PSFCH的重叠部分同时发送PSSCH且接收PSFCH,那么就会产生收发冲突的半双工问题。
另外,由于载波聚合的不同载波上配置的PSSCH位置也可能存在重叠部分,如果UE要在载波聚合的不同载波上的PSSCH的重叠部分同时发送PSSCH且接收PSSCH,也会产生收发冲突的半双工问题。
本申请实施例中,第一终端可以在至少一个载波上进行SL发送的过程中,在满足第一事件的情况下,例如在第一载波上的第一发送资源与其他载波上的时机或接收资源存在重叠,或第一发送资源对应的接收资源,即第二接收资源与其他载波上的时机或发送资源存在重叠的情况下,执行以下步骤:
第一终端对第一载波上的第一发送资源进行速率匹配或打孔,以得到无收发冲突的目标发送资源,再由第一终端基于无收发冲突的目标发送资源发送M1个第一信息,可以有效解决不同载波的收发冲突问题。
或者,第一终端还可以基于M1个第一信息的优先级及M2个第二信息的优先级,发送各第一信息或接收各第二信息,以避免同时收发信息而产生收发冲突。
具体地,第一事件可以包括以下任一项:
1)第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;其中,第一接收资源用于第一终端接收各第二信息;
上述第一发送资源可以是用于发送的资源。
上述第一时机可以理解成是在至少一个第二载波上预留的、用于发送PSFCH或接收PSFCH的资源。
上述第一接收资源可以是用于接收的资源。
2)第一终端接收到来自第二终端的第一消息;其中,第一消息用于指示第二终端在第一载波上的第二接收资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;第二接收资源用于第二终端接收来自第一终端的各第一信息;
具体地,第二终端可以在第一载波上的第二接收资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的情况下,即在第二终端的接收资源与其他载波上的时机和/或发送资源存在重叠的情况下,向与第二接收资源对应的发送端,即向第一终端发送第一消息,以指示第一终端对与第二接收资源对应的第一发送资源进行速率匹配或打孔;
第一终端在接收到第一消息后,会对第一发送资源进行速率匹配或打孔,以避免第二接收资源存在收发冲突。
此外,如果第二终端在至少一个第三载波上的第二发送资源对应的接收端是第一终端,则第二终端可以不通过高层通知或发送信令告知第一终端第一消息。
上述第一消息用于表征第二终端在一个或多个载波上的一个或多个位置、符号或时机存在收发冲突、不可用于接收或只可用于发送,或者,用于指示第一终端在一个或多个载波上的一个或多个位置、符号或时机不可用于发送。
上述第二接收资源可以是用于接收的资源,第二接收资源的发送端包括第一终端。
上述第二发送资源可以是用于发送的资源。
上述第二时机可以是PSFCH时机。
特别地,第三载波与第二载波可以是同一条载波。
3)第二终端在第一载波上的第二接收资源与第二终端和/或第二终端检测到的第三终端在至少一个第四载波上的第三发送资源存在重叠;
具体地,第二终端在第一载波上的第二接收资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的情况下,第二终端可以通过高层通知或通过发送信令,通知第二接收资源对应的发送端,即通知第一终端第二接收资源存在收发冲突,或者通知第一终端在一个或多个载波上的一个或多个位置、符号或时机不可用于发送;第一终端在接收到通知后,则会对第一发送资源进行速率匹配或打孔,以避免与第二接收资源存在收发冲突。
此外,由于第一发送资源对应的接收资源是第二终端的第二接收资源,故第一终端也可以通过检测第一发送资源,来确定第一发送资源对应的第二接收资源与第三发送资源是否存在重叠,进而可以根据第二接收资源与第三发送资源存在重叠的部分,确定第一终端在一个或多个载波上的一个或多个位置、符号或时机不可用于发送。
上述第三发送资源可以是用于发送的资源,第三发送资源的接收端可以是第一终端。
4)第一终端接收到来自第二终端的第一指示信息;第一指示信息用于指示第一终端基于第一开销在一个或多个载波上进行SL发送,或指示第一终端进行速率匹配或打孔的相关信息。
上述第一指示信息,例如可以用于指示在传输块(Transport Block,TB)大小(size)确定过程中以及第二阶旁链路控制信息(Sidelink Control Information,SCI)符号数确定过程中的第一开销;
又例如,可以用于指示第一终端需要速率匹配或打孔的位置或符号;
又例如,可以用于指示第一终端是否需要速率匹配或打孔;
又例如,可以用于指示如何速率匹配或打孔的相关信息;
又例如,可以用于指示存在收发冲突的载波信息。
上述第一指示信息可以由物理副链路控制信道(physical sidelink control channel,PSCCH)或PSSCH承载。
上述涉及到的至少两个载波,可以满足以下至少一项:
1、intra band的载波;
2、载波的子载波间隔(Subcarrier Spacing,SCS)相同或不同;
3、对应的发射(Transmission,TX)相同或同步;
4、对应的射频(Radio Frequency,RF)相同或不同;
5、对应的band不同。
本申请实施例提供的SL数据传输方法中,在存在不同载波上的收发冲突问题的情况下,第一终端对第一发送资源进行速率匹配或打孔,得到目标发送资源,并基于目标发送资源发送M1个第一信息;或第一终端基于待发送的M1个第一信息的优先级及待接收的M2个第二信息的优先级,确定发送第一信息或接收第二信息,从而解决载波聚合场景下存在的不同载波上的收发冲突问题,能够提高SL传输性能。
可选地,上述第一发送资源,可以包括以下至少一项:
1)用于发送的周期预留资源和/或非周期预留资源;
2)待发送的TB;
3)待发送的PSSCH;
4)待发送的PSCCH;
5)待发送的PSSCH解调参考信号(Demodulation Reference Signal,DMRS);
6)待发送的PSCCH DMRS。
可选地,上述第一时机和/或第二时机,可以包括以下至少一项:
1、PSFCH时机;
2、PSFCH;
3、PSFCH自动增益控制(Automatic Gain Control,AGC);
4、PSFCH保护间隔(Guard Period,GP);
5、GP符号;
6、AGC符号;
7、发射切换周期(Transmission switching period,TX switching period)所占的符号。
需要说明的是,PSFCH时机可以包括PSFCH、PSFCH AGC及PSFCH GP。
可选地,上述第一接收资源,可以包括以下至少一项:
1)用于接收的预留资源;
2)待接收的TB;
3)待接收的PSSCH;
4)待接收的PSCCH;
5)待接收的PSSCH DMRS;
6)待接收的PSCCH DMRS;
7)待接收的PSFCH;
8)待接收的PSFCH AGC;
9)待接收的PSFCH GP。
可选地,上述第二发送资源和/或第三发送资源,可以包括以下至少一项:
1、用于发送的周期预留资源和/或非周期预留资源;
2、待发送的TB;
3、待发送的PSSCH;
4、待发送的PSCCH;
5、待发送的PSSCH DMRS;
6、待发送的PSCCH DMRS;
7、待发送的PSFCH;
8、待发送的PSFCH AGC;
9、待发送的PSFCH GP。
可选地,上述第二接收资源,可以包括以下至少一项:
1)用于接收的预留资源;
2)待接收的TB;
3)待接收的PSSCH;
4)待接收的PSCCH;
5)待接收的PSSCH DMRS;
6)待接收的PSCCH DMRS;
7)推荐或期望用于接收的资源。
可选地,上述第一开销,可以包括以下至少一项:
1、第二终端在第一载波上的第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;
2、第二终端在第一载波上的第三接收资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;
3、第二终端在第一载波上的第三接收资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
可选地,第一终端对第一载波上的第一发送资源进行速率匹配的实现方式可以包括:
第一终端在确定第一载波上的第一发送资源的资源映射时,满足以下至少一项:
1)第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号映射;
2)第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号映射;
3)第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号映射;
4)第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号映射;
5)第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号映射;
6)第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号映射。
可选地,第一终端对第一载波上的第一发送资源进行打孔的实现方式可以包括:
第一终端对第一载波上的第一发送资源进行打孔时,满足以下至少一项:
1、第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号发送;
2、第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号发送;
3、第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号发送;
4、第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号发送;
5、第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号发送;
6、第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号发送。
可选地,第一终端基于目标发送资源确定第一载波上的解调参考信号样式(DMRS pattern);
或者,第一终端选择第一载波上的DMRS pattern;其中,DMRS pattern满足以下至少一项:
1)DMRS pattern不与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;
2)DMRS pattern不被打孔;
3)DMRS pattern不在第一载波上的第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分内;
4)DMRS pattern不与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;
5)DMRS pattern不在第一载波上的第一发送资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分内;
6)DMRS pattern不与第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
7)DMRS pattern不在第一载波上的第一发送资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分内。
可选地,在满足第一事件的情况下,第一终端向第二终端发送第二指示信息;第二指示信息用于指示第二终端基于第二开销在一个或多个载波上进行SL接收,或指示第二终端基于第一终端进行速率匹配或打孔后的pattern进行SL接收;其中,第二开销可以包括以下至少一项:
1、第一终端在第一载波上的第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;
2、第一终端在第一载波上的第一发送资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;
3、第一终端在第一载波上的第一发送资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
上述第二指示信息,例如可以用于指示在TB size确定过程中以及第二阶SCI符号数确定过程中的第一开销;
又例如,可以用于指示第一终端是否速率匹配或者打孔;
又例如,可以用于指示重叠部分的相关信息;
又例如,可以用于指示第一终端如何速率匹配或打孔的相关信息;
又例如,可以用于指示如何解速率匹配、解调或接收的相关信息;
又例如,可以用于指示存在收发冲突的载波信息。
上述第二指示信息可以由PSCCH或PSSCH承载。
可选地,本申请实施例可以根据优先级解决半双工问题,选择优先级高的进行接收或发送。
第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各第一信息或接收各第二信息的实现方式可以包括:
第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,确定各第一信息对应的发送优先级和各第二信息对应的接收优先级;其中,发送优先级为各第一信息中的最高优先级,接收优先级为各第二信息中的最高优先级;
第一终端基于发送优先级和接收优先级,执行以下任一项:
1)在发送优先级高于接收优先级的情况下,第一终端发送各第一信息;
2)在发送优先级等于接收优先级的情况下,第一终端发送各第一信息;
3)在发送优先级低于接收优先级的情况下,第一终端接收各第二信息;
4)在发送优先级等于接收优先级的情况下,第一终端接收各第二信息;
5)在发送优先级大于第一阈值的情况下,第一终端发送各第一信息;
6)在发送优先级等于第一阈值的情况下,第一终端发送各第一信息;
7)在发送优先级小于第一阈值的情况下,第一终端接收各第二信息;
8)在发送优先级等于第一阈值的情况下,第一终端接收各第二信息;
9)在接收优先级大于第二阈值的情况下,第一终端接收各第二信息;
10)在接收优先级等于第二阈值的情况下,第一终端接收各第二信息;
11)在接收优先级小于第二阈值的情况下,第一终端发送各第一信息;
12)在接收优先级等于第二阈值的情况下,第一终端发送各第一信息;
13)在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1大于m2的情况下,第一终端发送各第一信息;
14)在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,第一终端发送各第一信息;
15)在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1小于m2的情况下,第一终端接收各第二信息;
16)在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,第一终端接收各第二信息;
17)存在至少一个第一信息的优先级大于或等于第五阈值的情况下,第一终端发送各第一信息;
18)在各第一信息的优先级都小于或等于第五阈值的情况下,第一终端接收各第二信息;
19)存在至少一个第二信息的优先级大于或等于第六阈值的情况下,第一终端接收各第二信息;
20)在各第二信息的优先级都小于或等于第六阈值的情况下,第一终端发送各第一信息。
举例来说,第一终端在至少两个载波上进行SL传输,包括发送或接收第一信息,发送或接收第二信息。
1、当发送NTX,第一信息个第一信息和接收NRX,第二信息个第二信息发生在同一时刻时,第一终端可以根据第一信息的传输优先级和第二信息的传输优先级确定发送第一信息,或接收第二信息,包括以下任一项:
a.发送第一信息的优先级为NTX,第一信息个第一信息中的最高优先级,接收第二信息的优先级为NRX,第二信息个第二信息中的最高优先级。如果发送第一信息的优先级高于接收第二信息优先级,选择发送第一信息;否则接收第二信息;
b.存在第一信息的优先级大于第一门限,则选择发送第一信息;否则接收第二信息;
c.存在第二信息的优先级大于第二门限,则选择接收第二信息;否则发送第一信息;
d.存在nTX,第一信息个第一信息的优先级大于第三门限,存在nRX,第二信息个第二信息的优先级大于第四门限。如果nTX,第一信息大于或等于nRX,第二信息,选择发送第一信息;否则接收第二信息。
2、当接收NRX,第一信息个第一信息和发送NTX,第二信息个第二信息发送在同一时刻时,第一终端可以根据第一信息的传输优先级和第二信息的传输优先级确定接收第一信息,或者发送第二信息,包括以下任一项:
a.接收第一信息的优先级则为NRX,第一信息个第一信息中的最高优先级,发送第二信息的优先级则为NTX,第二信息个第二信息中的最高优先级。如果接收第一信息的优先级高于发送第二信息优先级,选择接收第一信息;否则发送第二信息;
b.存在第一信息的优先级大于第五门限,则选择接收第一信息;否则发送第二信息;
c.存在第二信息的优先级大于第六门限,则选择发送第二信息;否则接收第一信息;
d.存在nRX,第一信息个第一信息的优先级大于第七门限,存在nTX,第二信息个第二信息的优先级大于第八门限。如果nRX,第一信息大于或等于nTX,第二信息,选择接收第一信息;否则发送第二信息。
上述第一信息可以承载在PSSCH上,第二信息可以承载在PSFCH上。
可选地,在第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源之后,方法还可以包括:
第一终端基于目标发送资源,采用公式(1)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第三开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征PSFCH占用的符号数,表征相位跟踪参考信号PT-RS和信道状态信息参考信号CSI-RS占用的RE数,表征一个时隙中平均DMRS资源单元RE的个数;
上述第三开销可以包括以下至少一项:
1)第一终端在第一载波上的第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号个数;
2)第一终端在第一载波上的第一发送资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号个数;
3)第一终端在第一载波上的第一发送资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号个数。
本申请实施例中,第一终端或第二终端在确定该载波上的传输块集(Transport Block Set,TBS)时,可以根据打孔之后的资源计算TB size,并减去重叠部分的开销。
具体地,在确定可用资源粒子(Resource Element,RE)时,可以在调度符号上减去第三开销,即在确定在一个物理资源块(Physical Resource Block,PRB)中的可用RE时,可以在公式中的符号上,减去第三开销
需要说明的是,可以根据公式(5)计算一个时隙中可用的RE的数目或PSSCH占用的RE数NRE:
其中,nPRB为PSSCH占用的PRB的个数,为第一阶SCI占用的RE个数,可以包括PSCCH和PSCCH的DMRS占用的RE,为第二阶SCI占用的RE个数,NR
′
E为一个PRB内可用于PSSCH的的RE数,具体计算公式详见公式(1)。
在一个实施例中,上述公式(1)中:
表示一个PRB内的子载波个数;
表示一个时隙内可用于侧行的符号数,不包括最后一个GP符号和第一个用于AGC的符号;
或3,表示PSFCH占用的符号数,根据第一阶SCI中的PSFCH开销指示(overhead indication)域指示确定;
表示高层配置旁链路参考信号开销(sl-X-Overhead)给出的开销,用于表示相位跟踪参考信号(Phase-tracking reference signal,PT-RS)和信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)占用的RE数;
表示一个时隙中平均DMRS RE个数,根据高层配置的旁链路PSSCH的DMRS时域图样(sl-PSSCH-DMRS-TimePattern)由Table 8.1.3.2-1确定。
可选地,在第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源之后,方法还可以包括:
第一终端基于目标发送资源,采用公式(2)计算第二阶旁链路控制信息SCI占用的RE数Q′SCI2:
其中,且l不包括第四开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的循环冗余校核(Cyclic Redundancy Check,CRC)长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中调制与编码策略(Modulation and Coding Scheme,MCS)指示域中指示的MCS索引所对应的码率,α表征无线资源控制(Radio Resource Control,RRC)配置的第二阶SCI的最大频谱效率,表征第一个正交频分复用技术(Orthogonal Frequency Division Multiplexing,OFDM)符号上可用于映射第二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;
上述第四开销包括以下至少一项:
1)第一终端在第一载波上的第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号;
2)第一终端在第一载波上的第一发送资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号;
3)第一终端在第一载波上的第一发送资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号。
在一个实施例中,上述公式(2)中:
OSCI2表示第二阶SCI信息比特数,可以由第二阶SCI的格式确定;
LSCI2表示第二阶SCI的CRC长度,例如为24bit;
表示第二阶SCI的码率偏移,可以通过第一阶SCI指示;
表示第二阶SCI的调制阶数;
R表示第一阶SCI中,MCS指示域中指示的MCS索引所对应的码率;
表示第l个OFDM符号上可用于映射第二阶SCI的RE的个数,表示PSSCH的发送带宽内的RE个数,表示第l个OFDM符号上用于PSCCH的RE个数。
而其中,
表示当前时隙内除第一个AGC符号和最后一个GP符号外可以用于侧行的OFDM符号;
或3,表示PSFCH占用的符号数,可以根据第一阶SCI中的PSFCH overhead indication域指示确定;
γ的取值可以为0至11,表示最后一个第二阶SCI调制符号所在的PRB剩余的RE个数,该参数用以保证第二阶SCI占用的资源为整数个PRB;
α表示RRC配置的第二阶SCI的最大频谱效率。
本申请实施例提供的SL数据传输方法中,在存在不同载波上的收发冲突问题的情况下,第一终端对第一发送资源进行速率匹配或打孔,得到目标发送资源,并基于目标发送资源发送M1个第一信息;或第一终端基于待发送的M1个第一信息的优先级及待接收的M2个第二信息的优先级,确定发送第一信息或接收第二信息,从而解决载波聚合场景下存在的不同载波上的收发冲突问题,能够提高SL传输性能。
本申请实施例提供的SL数据传输方法,可应用于第二终端,在本申请实施例中是以第二终端作为接收端为例进行说明,但并不限制第二终端仅用于接收SL数据。
图4是本申请实施例提供的SL数据传输方法的流程示意图之二,如图4所示,该方法包括步骤401;其中:
步骤401、在满足第二事件的情况下,第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;第二终端基于目标接收资源接收N1个第三信息;
或者,第二终端基于N1个第三信息的优先级及N2个第四信息的优先级,接收各第三信息或发送各第四信息;第三接收资源用于第二终端接收各第三信息。
其中,第二事件包括以下至少一项:
第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;第四发送资源用于第二终端发送各第四信息;
第二终端接收到来自第一终端的第三消息,第三消息用于指示第一终端在第一载波上的第五发送资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;第五发送资源用于第一终端向第二终端发送各第三信息;
第一终端在第一载波上的第五发送资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
第二终端接收到来自第一终端的第二指示信息;第二指示信息用于指示第二终端基于第二开销在一个或多个载波上进行SL接收,或指示第二终端基于第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
具体地,本申请实施例中,第二终端可以在至少一个载波上进行SL接收的过程中,在满足第二事件的情况下,具体是在第一载波上的第三接收资源与其他载波上的时机或发送资源存在重叠,或第三接收资源对应的发送资源,即第五发送资源与其他载波上的时机或接收资源存在重叠的情况下,执行以下步骤以解决收发冲突:
第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,以得到无收发冲突的目标接收资源,再由第二终端基于无收发冲突的目标接收资源接收N1个第三信息,可以有效解决不同载波的收发冲突问题。
或者,第二终端还可以基于N1个第三信息的优先级及N2个第四信息的优先级,接收各第三信息或发送各第四信息,以避免同时收发信息而产生收发冲突。
需要说明的是,这里第二终端接收的第三信息,可以是上述第一终端基于目标发送资源发送的第一信息,这里第二终端发送的第四信息,可以是上述第一终端接收的第二信息。
具体地,第二事件可以包括以下任一项:
1)第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;其中,第四发送资源用于第二终端发送各第四信息;
上述第三接收资源可以是用于接收的资源。
上述第四时机可以理解成是在至少一个第六载波上预留的、用于发送PSFCH或接收PSFCH的资源。
上述第四发送资源可以是用于发送的资源。
2)第二终端接收到来自第一终端的第三消息;其中,第三消息用于指示第一终端在第一载波上的第五发送资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;第五发送资源用于第一终端向第二终端发送各第三信息;
具体地,第一终端可以在第一载波上的第五发送资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的情况下,即在第一终端的发送资源与
其他载波上的时机和/或发送资源存在重叠的情况下,向与第五发送资源对应的接收端,即向第二终端发送第三消息,以指示第二终端对与第五发送资源对应的第三接收资源进行解速率匹配或解调或接收;
第二终端在接收到第三消息后,会对第三接收资源进行解速率匹配或解调或接收,以避免第五发送资源存在收发冲突。
此外,如果第二终端在至少一个第七载波上的第四接收资源对应的发送端是第一终端,则第一终端可以不通过高层通知或发送信令告知第二终端第三消息。
上述第三消息用于表示第一终端在一个或多个载波上的一个或多个位置、符号或时机存在收发冲突、不可用于发送或只可用于接收,或者,用于指示第二终端在一个或多个载波上的一个或多个位置、符号或时机不可用于接收。
上述第五发送资源可以是用于发送的资源。
上述第四接收资源可以是用于接收的资源。
上述第五时机可以是PSFCH时机。
3)第一终端在第一载波上的第五发送资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
具体地,第一终端在第一载波上的第五发送资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的情况下,可以通过高层通知或通过发送信令,通知第五发送资源对应的接收端,即通知第二终端第五发送资源存在收发冲突,或者通知第二终端在一个或多个载波上的一个或多个位置、符号或时机不可用于接收;第二终端在接收到通知后,则会对第三接收资源解速率匹配或解调或接收,以避免与第五发送资源存在收发冲突。
此外,由于第二接收资源对应的发送资源是第一终端的第五发送资源,故第二终端也可以通过检测第二接收资源,确定第二接收资源对应的第五发送资源与第五接收资源是否存在重叠,进而可以根据第五发送资源与第五接收资源存在重叠的部分,确定第二终端在一个或多个载波上的一个或多个位置、符号或时机不可用于接收。
上述第六时机可以是PSFCH时机。
上述第五接收资源可以是用于接收的资源。
4)第二终端接收到来自第一终端的第二指示信息;第二指示信息用于指示第二终端基于第二开销在一个或多个载波上进行SL接收,或指示第二终端基于第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
上述第二指示信息,例如可以用于指示在传输块大小(TB size)确定过程中以及第二阶SCI符号数确定过程中的第一开销;
又例如,可以用于指示第一终端是否速率匹配或者打孔;
又例如,可以用于指示重叠部分的相关信息;
又例如,可以用于指示第一终端如何速率匹配或打孔的相关信息;
又例如,可以用于指示如何解速率匹配、解调或接收的相关信息;
又例如,可以用于指示存在收发冲突的载波信息。
上述第二指示信息可以由PSCCH或PSSCH承载。
上述涉及到的至少两个载波,可以满足以下至少一项:
1、intra band的载波;
2、载波的SCS相同或不同;
3、对应的TX相同或同步;
4、对应的RF相同或不同;
5、对应的band不同。
本申请实施例提供的SL数据传输方法中,在满足第二事件的情况下,例如第二终端在第一载波上的第三接收资源与其他载波上的时机或发送资源存在重叠,或第三接收资源对应的发送资源,即第五发送资源与其他载波上的时机或接收资源存在重叠的情况下,第二终端会对第三接收资源进行解速率匹配或解调或接收,得到无收发冲突的目标接收资源,并基于目标接收资源接收N1个第三信息;或者,第二终端会基于需要接收的N1个第三信息的优先级及需要发送的N2个第四信息的优先级,接收第三信息或发送第四信息,解决了在载波聚合时,不同载波的收发冲突问题,进而提高了SL传输性能。
可选地,上述第三接收资源,可以包括以下至少一项:
1)用于接收的预留资源;
2)待接收的TB;
3)待接收的PSSCH;
4)待接收的PSCCH;
5)待接收的PSSCH DMRS;
6)待接收的PSCCH DMRS。
可选地,上述第四时机、第五时机和/或第六时机,可以包括以下至少一项:
1、PSFCH时机;
2、PSFCH;
3、PSFCH AGC;
4、PSFCH GP;
5、GP符号;
6、AGC符号;
7、TX switching period所占的符号。
需要说明的是,PSFCH时机可以包括PSFCH、PSFCH AGC及PSFCH GP。
可选地,上述第四发送资源,可以包括以下至少一项:
1)用于发送的周期预留资源和/或非周期预留资源;
2)待发送的TB;
3)待发送的PSSCH;
4)待发送的PSCCH;
5)待发送的PSSCH DMRS;
6)待发送的PSCCH DMRS;
7)待发送的PSFCH;
8)待发送的PSFCH AGC;
9)待发送的PSFCH GP。
可选地,上述第四接收资源和/或第五接收资源,可以包括以下至少一项:
1、用于接收的预留资源;
2、待接收的TB;
3、待接收的PSSCH;
4、待接收的PSCCH;
5、待接收的PSSCH DMRS;
6、待接收的PSCCH DMRS;
7、待接收的PSFCH;
8、待接收的PSFCH AGC;
9、待接收的PSFCH GP。
可选地,上述第五发送资源,可以包括以下至少一项:
1)用于发送的周期预留资源和/或非周期预留资源;
2)待发送的TB;
3)待发送的PSSCH;
4)待发送的PSCCH;
5)待发送的PSSCH DMRS;
6)待发送的PSCCH DMRS。
可选地,上述第二开销,可以包括以下至少一项:
1、第一终端在第一载波上的第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;
2、第一终端在第一载波上的第一发送资源与第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;
3、第一终端在第一载波上的第一发送资源与第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
可选地,上述第二终端对第一载波上的第三接收资源进行解速率匹配,可以包括:
第二终端在确定第一载波上的第三接收资源的资源映射时,满足以下至少一项:
1)第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解速率匹配;
2)第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解速率匹配;
3)第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解速率匹配;
4)第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解速率匹配;
5)第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解速率匹配;
6)第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解速率匹配。
可选地,上述第二终端对第一载波上的第三接收资源进行解调或接收的实现方式,可以包括:
第二终端对第一载波上的第三接收资源进行解调或接收时,满足以下至少一项操作:
1、第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解调或接收;
2、第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解调或接收;
3、第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解调或接收;
4、第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解调或接收;
5、第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解调或接收;
6、第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解调或接收。
可选地,上述第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收的实现方式,可以包括:
第二终端基于目标pattern,对第一载波上的第三接收资源进行解速率匹配或解调或接收;
其中,目标pattern包括以下至少一项:
1)基于第二指示信息所确定的第一终端在一个或多个载波上速率匹配或打孔后的pattern;
2)基于第三接收资源的位置与第二终端在至少一个第六载波上的第四时机和/或第四发送资源是否重叠或重叠的位置所确定的pattern;
3)基于第三接收资源的位置与第一终端在至少一个第七载波上的第五时机和/或第四接收资源是否重叠或重叠的位置所确定的pattern;
4)基于第三接收资源的位置与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源是否重叠或重叠的位置所确定的pattern。
可选地,在满足第二事件的情况下,第二终端向第一终端发送第一指示信息;第一指示信息用于指示第一终端基于第一开销在一个或多个载波上进行SL发送,或指示第一终端进行速率匹配或打孔的相关信息;
其中,第一开销包括以下至少一项:
1、第二终端在第一载波上的第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;
2、第二终端在第一载波上的第三接收资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;
3、第二终端在第一载波上的第三接收资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
上述第一指示信息,例如可以用于指示在TB size确定过程中以及第二阶SCI符号数确定过程中的第一开销;
又例如,可以用于指示第一终端需要速率匹配或打孔的位置或符号;
又例如,可以用于指示第一终端是否需要速率匹配或打孔;
又例如,可以用于指示如何速率匹配或打孔的相关信息;
又例如,可以用于指示存在收发冲突的载波信息。
上述第一指示信息可以由PSCCH或PSSCH承载。
可选地,第二终端基于N1个第三信息的优先级及N2个第四信息的优先级,接收各第三信息或发送各第四信息的实现方式,包括:
第二终端基于各第三信息的优先级及N2个第四信息的优先级,确定各第三信息对应的接收优先级和各第四信息对应的发送优先级;其中,接收优先级为各第三信息中的最高优先级,发送优先级为各第四信息中的最高优先级;
第二终端基于接收优先级和发送优先级,执行以下任一项:
1)在接收优先级高于发送优先级的情况下,第二终端接收各第三信息;
2)在接收优先级等于发送优先级的情况下,第二终端接收各第三信息;
3)在接收优先级低于发送优先级的情况下,第二终端发送各第四信息;
4)在接收优先级等于发送优先级的情况下,第二终端发送各第四信息;
5)在接收优先级大于第七阈值的情况下,第二终端接收各第三信息;
6)在接收优先级等于第七阈值的情况下,第二终端接收各第三信息;
7)在接收优先级小于第七阈值的情况下,第二终端发送各第四信息;
8)在接收优先级等于第七阈值的情况下,第二终端发送各第四信息;
9)在发送优先级大于第八阈值的情况下,第二终端发送各第四信息;
10)在发送优先级等于第八阈值的情况下,第二终端发送各第四信息;
11)在发送优先级小于第八阈值的情况下,第二终端接收各第三信息;
12)在发送优先级等于第八阈值的情况下,第二终端接收各第三信息;
13)在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1大于n2的情况下,第二终端接收各第三信息;
14)在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,第二终端接收各第三信息;
15)在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1小于n2的情况下,第二终端发送各第四信息;
16)在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,第二终端发送各第四信息;
17)存在至少一个第三信息的优先级大于或等于第十一阈值的情况下,第二终端接收各第三信息;
18)在各第三信息的优先级都小于或等于第十一阈值的情况下,第二终端发送各第四信息;
19)存在至少一个第四信息的优先级大于或等于第十二阈值的情况下,第二终端发送各第四信息;
20)在各第四信息的优先级都小于或等于第十二阈值的情况下,第二终端接收各第三信息。
可选地,在第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源之后,第二终端基于目标接收资源,采用公式(3)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第五开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征PSFCH占用的符号数,表征PT-RS和CSI-RS占用的RE数,表征一个时隙中平均DMRS RE的个数;
上述第五开销可以包括以下至少一项:
1)第二终端在第一载波上的第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号个数;
2)第二终端在第一载波上的第三接收资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号个数;
3)第二终端在第一载波上的第三接收资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号个数。
在一个实施例中,上述公式(3)中:
表示一个PRB内的子载波个数;
表示一个时隙内可用于侧行的符号数,不包括最后一个GP符号和第一个用于AGC的符号;
或3,表示PSFCH占用的符号数,根据第一阶SCI中的PSFCH overhead indication域指示确定;
表示高层配置sl-X-Overhead给出的开销,用于表示PT-RS和CSI-RS占用的RE数;
表示一个时隙中平均DMRS RE个数,根据高层配置的sl-PSSCH-DMRS-TimePattern确定。
可选地,在第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源之后,第二终端基于目标接收资源,采用公式(4)计算第二阶旁链路控制信息SCI占用的RE数Q′
SCI2:
其中,且l不包括第六开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的CRC长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中MCS指示域中指示的MCS索引所对应的码率,α表征无线资源控制RRC配置的第二阶SCI的最大频谱效
率,表征第一个OFDM符号上可用于映射第二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;
上述第六开销可以包括以下至少一项:
1)第二终端在第一载波上的第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号;
2)第二终端在第一载波上的第三接收资源与第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号;
3)第二终端在第一载波上的第三接收资源与第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号。
在一个实施例中,上述公式(4)中:
OSCI2表示第二阶SCI信息比特数,可以由第二阶SCI的格式确定;
LSCI2表示第二阶SCI的CRC长度,例如为24bit;
表示第二阶SCI的码率偏移,可以通过第一阶SCI指示;
表示第二阶SCI的调制阶数;
R表示第一阶SCI中,MCS指示域中指示的MCS索引所对应的码率;
表示第l个OFDM符号上可用于映射第二阶SCI的RE的个数,表示PSSCH的发送带宽内的RE个数,表示第l个OFDM符号上用于PSCCH的RE个数。
而其中,
表示当前时隙内除第一个AGC符号和最后一个GP符号外可以用于侧行的OFDM符号;
或3,表示PSFCH占用的符号数,可以根据第一阶SCI中的PSFCH overhead indication域指示确定;
γ的取值可以为0至11,表示最后一个第二阶SCI调制符号所在的PRB剩余的RE个数,该参数用以保证第二阶SCI占用的资源为整数个PRB;
α表示RRC配置的第二阶SCI的最大频谱效率。
下面举例说明本申请实施例提供的SL数据传输方法:
1、图5是本申请实施例提供的不同CC上的资源分布示意图之二,如图5所示,第一终端配置了CC1和CC2,其中CC1和CC2的时隙格式(slot format)长度均为14个符号(symbol),CC1上没有配置PSFCH,CC2上配置了PSFCH,可见,CC1上待
发送的PSSCH和CC2上的PSFCH时机(occasion)存在重叠,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射在符号#11,符号#12。
在计算TB size时,通过公式(5)计算一个时隙中可用的RE的数目或PSSCH占用的RE数NRE:
其中,一个PRB内可用于PSSCH的的RE数,基于公式(1)计算得到:
上述
在确定第二阶SCI占用的RE时,在调度符号上减去第四开销,也就是说,确定在一个时隙中可用的OFDM符号时,基于公式(2)计算得到:
上述其中l不包括第四开销即l=0,1,2…,9。
2、图6是本申请实施例提供的不同CC上的资源分布示意图之三,如图6所示,第一终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,可见,CC1上待发送的PSSCH和CC2上待接收的PSFCH存在重叠,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射在符号#11,符号#12。
3、图7是本申请实施例提供的不同CC上的资源分布示意图之四,如图7所示,第二终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,可见,CC1上待接收的PSSCH(待接收的PSSCH的发送端是第一终端)和CC2上待发送的PSFCH存在重叠部分,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第二终端通过高层通知或发送信令告知第一
终端第一消息,指示第一终端在CC1上的符号#11和符号#12不可用于发送,第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射符号#11,符号#12。
又或者,第二终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,CC1上待接收的PSSCH(待接收的PSSCH的发送端是第一终端)和CC2上待发送的PSFCH(待发送的PSFCH的接收端是第一终端)存在重叠部分,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射符号#11,符号#12。可以理解为,第一终端可以自己根据PSSCH和PSFCH的映射判断出存在冲突,不一定需要第二终端的通知。
4、图8是本申请实施例提供的不同CC上的资源分布示意图之五,如图8所示,第二终端在CC1待接收的PSSCH(待接收的PSSCH的发送端是第一终端)与第二终端检测到CC2上的其他终端的待发送的PSSCH存在重叠部分(符号#6和符号#7),则第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射符号#6,符号#7。
又或者,第二终端在CC1待接收的PSSCH(待接收的PSSCH的发送端是第一终端)与第二终端检测到CC2上的其他终端的待发送的PSSCH(待发送的PSSCH的接收端是第一终端)存在重叠部分(符号#6和符号#7),则第一终端在确定CC1上待发送的PSSCH资源映射时,对PSSCH进行速率匹配,即PSSCH不映射符号#6,符号#7。
5、图9是本申请实施例提供的不同CC上的资源分布示意图之六,如图9所示,第二终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,CC1上待接收的PSSCH和CC21上的PSFCH occasion存在重叠,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
在计算TB size时,通过公式(5)计算一个时隙中可用的RE的数目或PSSCH占用的RE数NRE:
其中,一个PRB内可用于PSSCH的的RE数,基于公式(6)计算得到:
上述
在确定第二阶SCI占用的RE时,在调度符号上减去第六开销,也就是说,确定在一个时隙中可用的OFDM符号时,基于公式(2)计算得到:
上述其中l不包括第六开销即l=0,1,2…,9。
6、图10是本申请实施例提供的不同CC上的资源分布示意图之七,如图10所示,第二终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,CC1上待接收的PSSCH和CC2上待发送的PSFCH存在重叠,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不做传输,则第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
7、图11是本申请实施例提供的不同CC上的资源分布示意图之八,如图11所示,第一终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,CC1上待发送的PSSCH(待发送的PSSCH的接收端是第二终端)和CC2上待接收的PSFCH存在重叠部分,包括PSFCH的2个symbol(符号#11,符号#12),CC21的PSFCH的GP符号也是CC12的PSSCH的GP符号,该符号不做传输,则第一终端通过高层通知或发送信令告知第二终端第三消息,指示第二终端在CC1上的符号#11和符号#12不可用于接收,第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
又或者,第一终端配置了CC1和CC2,其中CC1和CC2的slot format长度均为14个symbol,CC1上没有配置PSFCH,CC2上配置了PSFCH,CC1上待发送的PSSCH(待发送的PSSCH的接收端是第二终端)和CC2上待接收的PSFCH(待接收的PSSCH的发送端是第一终端)存在重叠部分,包括PSFCH的2个symbol(符号#11,符号#12),CC2的PSFCH的GP符号也是CC1的PSSCH的GP符号,该符号不
做传输,则第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
8、图12是本申请实施例提供的不同CC上的资源分布示意图之九,如图12所示,第一终端在CC1待发送的PSSCH(待发送的PSSCH的接收端是第二终端)与第一终端检测到CC2上的其他终端的待接收的PSSCH存在重叠部分(符号#6和符号#7),则第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
又或者,第一终端在CC1待发送的PSSCH(待发送的PSSCH的接收端是第二终端)与第一终端检测到CC2上的其他终端的待接收的PSSCH(待接收的PSSCH的发送端是第二终端)存在重叠部分(符号#6和符号#7),则第二终端在CC1上进行SL接收时,不在符号#11,符号#12对待接收的PSSCH进行解速率匹配。
本申请实施例提供的SL数据传输方法,执行主体可以为SL数据传输装置。本申请实施例中以SL数据传输装置执行SL数据传输方法为例,说明本申请实施例提供的SL数据传输装置。
图13是本申请实施例提供的SL数据传输装置的结构示意图之一,如图13所示,该SL数据传输装置1300,应用于第一终端,包括:
发送模块1301,在满足第一事件的情况下,
对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;并基于所述目标发送资源发送M1个第一信息;
或者,基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于第一终端发送各所述第一信息;
其中,所述第一事件包括以下至少一项:
所述第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于第一终端接收M2个第二信息;
所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;
所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
本申请实施例提供的SL数据传输装置中,在存在不同载波上的收发冲突问题的情况下,对第一发送资源进行速率匹配或打孔,得到目标发送资源,并基于目标发送资源发送M1个第一信息;或基于待发送的M1个第一信息的优先级及待接收的M2个第二信息的优先级,确定发送第一信息或接收第二信息,从而解决载波聚合场景下存在的不同载波上的收发冲突问题,能够提高SL传输性能。
可选地,发送模块1301具体用于在确定所述第一载波上的第一发送资源的资源映射;
在确定所述第一载波上的第一发送资源的资源映射时,满足以下至少一项:
所述第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号映射;
所述第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号映射;
所述第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号映射;
所述第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号映射;
所述第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号映射;
所述第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号映射。
可选地,发送模块1301具体用于对所述第一载波上的第一发送资源进行打孔;
对所述第一载波上的第一发送资源进行打孔时,满足以下至少一项:
所述第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号发送;
所述第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号发送;
所述第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号发送;
所述第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号发送;
所述第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号发送;
所述第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号发送。
可选地,发送模块1301还用于基于所述目标发送资源确定所述第一载波上的解调参考信号DMRS样式pattern;
或者,发送模块1301还用于选择所述第一载波上的DMRS pattern;所述DMRS pattern满足以下至少一项:
所述DMRS pattern不与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;
所述DMRS pattern不被打孔;
所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分内;
所述DMRS pattern不与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;
所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分内;
所述DMRS pattern不与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分内。
可选地,发送模块1301还用于在满足所述第一事件的情况下,向所述第二终端发送第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的pattern进行SL接收;
其中,所述第二开销包括以下至少一项:
所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
可选地,第一发送资源包括以下至少一项:
用于发送的周期预留资源和/或非周期预留资源;
待发送的传输块TB;
待发送的PSSCH;
待发送的PSCCH;
待发送的PSSCH DMRS;
待发送的PSCCH DMRS。
可选地,第一时机和/或所述第二时机包括以下至少一项:
物理旁链路反馈信道PSFCH时机;
PSFCH;
PSFCH AGC;
PSFCH GP;
GP符号;
AGC符号;
TX switching period所占的符号。
可选地,第一接收资源包括以下至少一项:
用于接收的预留资源;
待接收的TB;
待接收的PSSCH;
待接收的PSCCH;
待接收的PSSCH DMRS;
待接收的PSCCH DMRS;
待接收的PSFCH;
待接收的PSFCH AGC;
待接收的PSFCH GP。
可选地,第二发送资源和/或所述第三发送资源,包括以下至少一项:
用于发送的周期预留资源和/或非周期预留资源;
待发送的TB;
待发送的PSSCH;
待发送的PSCCH;
待发送的PSSCH DMRS;
待发送的PSCCH DMRS;
待发送的PSFCH;
待发送的PSFCH AGC;
待发送的PSFCH GP。
可选地,第二接收资源包括以下至少一项:
用于接收的预留资源;
待接收的TB;
待接收的PSSCH;
待接收的PSCCH;
待接收的PSSCH DMRS;
待接收的PSCCH DMRS;
推荐或期望用于接收的资源。
可选地,发送模块1301还具体用于基于各所述第一信息的优先级及M2个第二信息的优先级,确定各所述第一信息对应的发送优先级和各所述第二信息对应的接收优先级;其中,所述发送优先级为各所述第一信息中的最高优先级,所述接收优先级为各所述第二信息中的最高优先级;
发送模块1301还具体用于基于所述发送优先级和所述接收优先级,执行以下任一项:
在所述发送优先级高于所述接收优先级的情况下,所述第一终端发送各所述第一信息;
在所述发送优先级等于所述接收优先级的情况下,所述第一终端发送各所述第一信息;
在所述发送优先级低于所述接收优先级的情况下,所述第一终端接收各所述第二信息;
在所述发送优先级等于所述接收优先级的情况下,所述第一终端接收各所述第二信息;
在所述发送优先级大于第一阈值的情况下,所述第一终端发送各所述第一信息;
在所述发送优先级等于第一阈值的情况下,所述第一终端发送各所述第一信息;
在所述发送优先级小于第一阈值的情况下,所述第一终端接收各所述第二信息;
在所述发送优先级等于第一阈值的情况下,所述第一终端接收各所述第二信息;
在所述接收优先级大于第二阈值的情况下,所述第一终端接收各所述第二信息;
在所述接收优先级等于第二阈值的情况下,所述第一终端接收各所述第二信息;
在所述接收优先级小于第二阈值的情况下,所述第一终端发送各所述第一信息;
在所述接收优先级等于第二阈值的情况下,所述第一终端发送各所述第一信息;
在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1大于m2的情况下,所述第一终端发送各所述第一信息;
在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,所述第一终端发送各所述第一信息;
在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1小于m2的情况下,所述第一终端接收各所述第二信息;
在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,所述第一终端接收各所述第二信息;
存在至少一个第一信息的优先级大于或等于第五阈值的情况下,所述第一终端发送各所述第一信息;
在各所述第一信息的优先级都小于或等于第五阈值的情况下,所述第一终端接收各所述第二信息;
存在至少一个第二信息的优先级大于或等于第六阈值的情况下,所述第一终端接收各所述第二信息;在各所述第二信息的优先级都小于或等于第六阈值的情况下,所述第一终端发送各所述第一信息。
可选地,发送模块1301还用于基于所述目标发送资源,采用公式(1)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第三开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征物理旁链路反馈信道PSFCH占用的符号数,表征相位跟踪参考信号PT-RS和信道状态信息参考信号CSI-RS占用的RE数,表征一个时隙中平均DMRS资源单元RE的个数;
所述第三开销包括以下至少一项:
所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号个数;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号个数;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号个数。
可选地,发送模块1301还用于基于所述目标发送资源,采用公式(2)计算第二阶旁链路控制信息SCI占用的RE数Q′SCI2:
其中,且l不包括第四开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的CRC长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中调制与编码策略MCS指示域中指示的MCS索引所对应的码率,α表征无线资源控制RRC配置的第二阶SCI
的最大频谱效率,表征第一个正交频分复用技术OFDM符号上可用于映射第二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;
所述第四开销包括以下至少一项:
所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号。
可选地,第一开销包括以下至少一项:
所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
图14是本申请实施例提供的SL数据传输装置的结构示意图之二,如图14所示,该SL数据传输装置1400,应用于第二终端,包括:
接收模块1401,用于在满足第二事件的情况下:
对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;并基于所述目标接收资源接收N1个第三信息;
或者,基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;
其中,所述第二事件包括以下至少一项:
所述第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;
所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;
所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
本申请实施例提供的SL数据传输装置中,在满足第二事件的情况下,例如第二终端在第一载波上的第三接收资源与其他载波上的时机或发送资源存在重叠,或第三接收资源对应的发送资源,即第五发送资源与其他载波上的时机或接收资源存在重叠的情况下,接收模块会对第三接收资源进行解速率匹配或解调或接收,得到无收发冲突的目标接收资源,并基于目标接收资源接收N1个第三信息;或者,接收模块会基于需要接收的N1个第三信息的优先级及需要发送的N2个第四信息的优先级,接收第三信息或发送第四信息,解决了在载波聚合时,不同载波的收发冲突问题,进而提高了SL传输性能。
可选地,接收模块1401具体用于确定所述第一载波上的第三接收资源的资源映射;
在确定所述第一载波上的第三接收资源的资源映射时,满足以下至少一项:
所述第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解速率匹配;
所述第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解速率匹配;
所述第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解速率匹配;
所述第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解速率匹配;
所述第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解速率匹配;
所述第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解速率匹配。
可选地,接收模块1401还具体用于对所述第一载波上的第三接收资源进行解调或接收;在对所述第一载波上的第三接收资源进行解调或接收时,满足以下至少一项:
所述第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解调或接收;
所述第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解调或接收;
所述第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解调或接收;
所述第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解调或接收;
所述第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解调或接收;
所述第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解调或接收。
可选地,接收模块1401还具体用于基于目标样式pattern,对所述第一载波上的第三接收资源进行解速率匹配或解调或接收;
其中,所述目标pattern包括以下至少一项:
基于第二指示信息所确定的所述第一终端在一个或多个载波上速率匹配或打孔后的pattern;
基于所述第三接收资源的位置与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源是否重叠或重叠的位置所确定的pattern;
基于所述第三接收资源的位置与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源是否重叠或重叠的位置所确定的pattern;
基于所述第三接收资源的位置与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源是否重叠或重叠的位置所确定的pattern。
可选地,接收模块1401还用于在满足所述第二事件的情况下,向所述第一终端发送第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息;
其中,所述第一开销包括以下至少一项:
所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
可选地,第三接收资源包括以下至少一项:
用于接收的预留资源;
待接收的TB;
待接收的PSSCH;
待接收的PSCCH;
待接收的PSSCH DMRS;
待接收的PSCCH DMRS。
可选地,第四时机、所述第五时机和/或所述第六时机,包括以下至少一项:PSFCH时机;
PSFCH;
PSFCH AGC;
PSFCH GP;
GP符号;
AGC符号;
TX switching period所占的符号。
可选地,第四发送资源包括以下至少一项:
用于发送的周期预留资源和/或非周期预留资源;
待发送的TB;
待发送的PSSCH;
待发送的PSCCH;
待发送的PSSCH DMRS;
待发送的PSCCH DMRS;
待发送的PSFCH;
待发送的PSFCH AGC;
待发送的PSFCH GP。
可选地,第四接收资源和/或所述第五接收资源包括以下至少一项:
用于接收的预留资源;
待接收的TB;
待接收的PSSCH;
待接收的PSCCH;
待接收的PSSCH DMRS;
待接收的PSCCH DMRS;
待接收的PSFCH;
待接收的PSFCH AGC;
待接收的PSFCH GP。
可选地,第五发送资源包括以下至少一项:
用于发送的周期预留资源和/或非周期预留资源;
待发送的TB;
待发送的PSSCH;
待发送的PSCCH;
待发送的PSSCH DMRS;
待发送的PSCCH DMRS。
可选地,接收模块1401还具体用于基于各所述第三信息的优先级及N2个第四信息的优先级,确定各所述第三信息对应的接收优先级和各所述第四信息对应的发送优先级;其中,所述接收优先级为各所述第三信息中的最高优先级,所述发送优先级为各所述第四信息中的最高优先级;
接收模块1401还具体用于基于所述接收优先级和所述发送优先级,执行以下任一项:
在所述接收优先级高于所述发送优先级的情况下,所述第二终端接收各所述第三信息;
在所述接收优先级等于所述发送优先级的情况下,所述第二终端接收各所述第三信息;
在所述接收优先级低于所述发送优先级的情况下,所述第二终端发送各所述第四信息;
在所述接收优先级等于所述发送优先级的情况下,所述第二终端发送各所述第四信息;
在所述接收优先级大于第七阈值的情况下,所述第二终端接收各所述第三信息;
在所述接收优先级等于第七阈值的情况下,所述第二终端接收各所述第三信息;
在所述接收优先级小于第七阈值的情况下,所述第二终端发送各所述第四信息;
在所述接收优先级等于第七阈值的情况下,所述第二终端发送各所述第四信息;
在所述发送优先级大于第八阈值的情况下,所述第二终端发送各所述第四信息;
在所述发送优先级等于第八阈值的情况下,所述第二终端发送各所述第四信息;
在所述发送优先级小于第八阈值的情况下,所述第二终端接收各所述第三信息;
在所述发送优先级等于第八阈值的情况下,所述第二终端接收各所述第三信息;
在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1大于n2的情况下,所述第二终端接收各所述第三信息;
在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,所述第二终端接收各所述第三信息;
在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1小于n2的情况下,所述第二终端发送各所述第四信息;
在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,所述第二终端发送各所述第四信息;
存在至少一个第三信息的优先级大于或等于第十一阈值的情况下,所述第二终端接收各所述第三信息;
在各所述第三信息的优先级都小于或等于第十一阈值的情况下,所述第二终端发送各所述第四信息;
存在至少一个第四信息的优先级大于或等于第十二阈值的情况下,所述第二终端发送各所述第四信息;
在各所述第四信息的优先级都小于或等于第十二阈值的情况下,所述第二终端接收各所述第三信息。
可选地,接收模块1401还具体用于基于所述目标接收资源,采用公式(3)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第五开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征物理旁链路反馈信道PSFCH占用的符号数,表征相位跟踪参考信号PT-RS和信道状态信息参考信号CSI-RS占用的RE数,表征一个时隙中平均DMRS资源单元RE的个数;
所述第五开销包括以下至少一项:
所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号个数;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号个数;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号个数。
可选地,接收模块1401还具体用于基于所述目标接收资源,采用公式(4)计算第二阶旁链路控制信息SCI占用的RE数Q′SCI2:
其中,且l不包括第六开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的CRC长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中调制与编码策略MCS指示域中指示的MCS索引所对应的码率,α表征无线资源控制RRC配置的第二阶SCI的最大频谱效率,表征第一个正交频分复用技术OFDM符号上可用于映射第
二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;
所述第六开销包括以下至少一项:
所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号;
所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号。
可选地,第二开销包括以下至少一项:
所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;
所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
本申请实施例中的SL数据传输装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的SL数据传输装置能够实现图2至图12的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图15是本申请实施例提供的通信设备的结构示意图,如图15所示,该通信设备1500,包括处理器1501和存储器1502,存储器1502上存储有可在所述处理器1501上运行的程序或指令,例如,该通信设备1500为第一终端时,该程序或指令被处理器1501执行时实现上述第一终端侧SL数据传输方法实施例的各个步骤,且能达到相同的技术效果。该通信设备1500为第二终端时,该程序或指令被处理器1501执行时实现上述第二终端侧SL数据传输方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种第一终端,包括处理器和通信接口,通信接口用于在满足第一事件的情况下:
对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;并基于所述目标发送资源发送M1个第一信息;
或者,基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于第一终端发送各所述第一信息;
其中,所述第一事件包括以下至少一项:
所述第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于所述第一终端接收M2个第二信息;
所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;
所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;
所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。该第一终端实施例与上述第一终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该第一终端实施例中,且能达到相同的技术效果。
图16是本申请实施例提供的第一终端的结构示意图,如图16所示,该第一终端1600包括但不限于:射频单元1601、网络模块1602、音频输出单元1603、输入单元1604、传感器1605、显示单元1606、用户输入单元1607、接口单元1608、存储器1609以及处理器1610等中的至少部分部件。
本领域技术人员可以理解,第一终端1600还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1610逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图16中示出的第一终端结构并不构成对第一终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1604可以包括图形处理单元(Graphics Processing Unit,GPU)16041和麦克风16042,图形处理器16041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1606可包括显示面板16061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板16061。用户输入单元1607包括触控面板16071以及其他输入设备16072中的至少一种。触控面板16071,也称为触摸屏。触控面板16071可包括触摸检测装置和触摸控制器两个部分。其他输入设备16072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1601接收来自网络侧设备的下行数据后,可以传输给处理器1610进行处理;另外,射频单元1601可以向网络侧设备发送上行数据。通常,射频单元1601包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1609可用于存储软件程序或指令以及各种数据。存储器1609可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1609可以包括易失性存储器或非易失性存储器,或者,存储器1609可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1609包括但不限于这些和任意其它适合类型的存储器。
处理器1610可包括一个或多个处理单元;可选的,处理器1610集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1610中。
本申请实施例还提供一种第二终端,包括处理器和通信接口,通信接口用于在满足第二事件的情况下:
对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;基于所述目标接收资源接收N1个第三信息;
或者,基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;
其中,所述第二事件包括以下至少一项:
所述第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;
所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;
所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;
所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
该第二终端实施例与上述第二终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该第二终端实施例中,且能达到相同的技术效果。
图17是本申请实施例提供的第二终端的结构示意图,如图17所示,该第二终端1700包括但不限于:射频单元1701、网络模块1702、音频输出单元1703、输入单元1704、传感器1705、显示单元1706、用户输入单元1707、接口单元1708、存储器1709以及处理器1710等中的至少部分部件。
本领域技术人员可以理解,第二终端1700还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1710逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图17中示出的第二终端结构并不构成对第二终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1704可以包括图形处理单元(Graphics Processing Unit,GPU)17041和麦克风17042,图形处理器17041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1706可包括显示面板17061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板17061。用户输入单元1707包括触控面板17071以及其他输入设备17072中的至少一种。触控面板17071,也称为触摸屏。触控面板17071可包括触摸检测装置和触摸控制器两个部分。其他输入设备17072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1701接收来自网络侧设备的下行数据后,可以传输给处理器1710进行处理;另外,射频单元1701可以向网络侧设备发送上行数据。通常,射频单元1701包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1709可用于存储软件程序或指令以及各种数据。存储器1709可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1709可以包括易失性存储器或非易失性存储器,或者,存储器1709可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1709包括但不限于这些和任意其它适合类型的存储器。
处理器1710可包括一个或多个处理单元;可选的,处理器1710集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1710中。
本申请实施例还提供了一种SL数据传输系统,包括:第一终端及第二终端,所述第一终端可用于执行如上所述的第一终端侧SL数据传输方法的步骤,所述第二终端可用于执行如上所述的第二终端侧SL数据传输方法的步骤。
本申请实施例还提供一种可读存储介质,所述可读存储介质可以是以易失性的,也可以是非易失性的,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述SL数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述SL数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述SL数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (33)
- 一种旁链路SL数据传输方法,包括:在满足第一事件的情况下,第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;所述第一终端基于所述目标发送资源发送M1个第一信息;或者,第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于所述第一终端发送各所述第一信息;其中,所述第一事件包括以下至少一项:所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于所述第一终端接收M2个第二信息;所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
- 根据权利要求1所述的SL数据传输方法,其中,所述第一终端对第一载波上的第一发送资源进行速率匹配,包括:所述第一终端在确定所述第一载波上的第一发送资源的资源映射时,满足以下至少一项:所述第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号映射;所述第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号映射;所述第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号映射;所述第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号映射;所述第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号映射;所述第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号映射。
- 根据权利要求1所述的SL数据传输方法,其中,所述第一终端对第一载波上的第一发送资源进行打孔,包括:所述第一终端对所述第一载波上的第一发送资源进行打孔时,满足以下至少一项:所述第一发送资源在与至少一个第二载波上的第一时机和/或第一接收资源不存在重叠的位置或符号发送;所述第一发送资源不在与至少一个第二载波上的第一时机和/或第一接收资源存在重叠的位置或符号发送;所述第一发送资源在与至少一个第三载波上的第二时机和/或第二发送资源不存在重叠的位置或符号发送;所述第一发送资源不在与至少一个第三载波上的第二时机和/或第二发送资源存在重叠的位置或符号发送;所述第一发送资源在与至少一个第四载波上的第三发送资源不存在重叠的位置或符号发送;所述第一发送资源不在与至少一个第四载波上的第三发送资源存在重叠的位置或符号发送。
- 根据权利要求1至3任一项所述的SL数据传输方法,所述方法还包括:所述第一终端基于所述目标发送资源确定所述第一载波上的解调参考信号DMRS样式pattern;或者,所述第一终端选择所述第一载波上的DMRS pattern;所述DMRS pattern满足以下至少一项:所述DMRS pattern不与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述DMRS pattern不被打孔;所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分内;所述DMRS pattern不与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分内;所述DMRS pattern不与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;所述DMRS pattern不在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分内。
- 根据权利要求1所述的SL数据传输方法,所述方法还包括:在满足所述第一事件的情况下,所述第一终端向所述第二终端发送第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的pattern进行SL接收;其中,所述第二开销包括以下至少一项:所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
- 根据权利要求1至5任一项所述的SL数据传输方法,其中,所述第一发送资源包括以下至少一项:用于发送的周期预留资源和/或非周期预留资源;待发送的传输块TB;待发送的物理旁链路共享信道PSSCH;待发送的物理旁链路控制信道PSCCH;待发送的PSSCH DMRS;待发送的PSCCH DMRS。
- 根据权利要求1至6任一项所述的SL数据传输方法,其中,所述第一时机和/或所述第二时机包括以下至少一项:物理旁链路反馈信道PSFCH时机;PSFCH;PSFCH自动增益控制AGC;PSFCH保护间隔GP;GP符号;AGC符号;发送切换周期TX switching period所占的符号。
- 根据权利要求1至7任一项所述的SL数据传输方法,其中,所述第一接收资源包括以下至少一项:用于接收的预留资源;待接收的TB;待接收的PSSCH;待接收的PSCCH;待接收的PSSCH DMRS;待接收的PSCCH DMRS;待接收的PSFCH;待接收的PSFCH AGC;待接收的PSFCH GP。
- 根据权利要求1至8任一项所述的SL数据传输方法,其中,所述第二发送资源和/或所述第三发送资源,包括以下至少一项:用于发送的周期预留资源和/或非周期预留资源;待发送的TB;待发送的PSSCH;待发送的PSCCH;待发送的PSSCH DMRS;待发送的PSCCH DMRS;待发送的PSFCH;待发送的PSFCH AGC;待发送的PSFCH GP。
- 根据权利要求1至8任一项所述的SL数据传输方法,其中,所述第二接收资源包括以下至少一项:用于接收的预留资源;待接收的TB;待接收的PSSCH;待接收的PSCCH;待接收的PSSCH DMRS;待接收的PSCCH DMRS;推荐或期望用于接收的资源。
- 根据权利要求1所述的SL数据传输方法,其中,所述第一终端基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息,包括:所述第一终端基于各所述第一信息的优先级及M2个第二信息的优先级,确定各所述第一信息对应的发送优先级和各所述第二信息对应的接收优先级;其中,所述发送优先级为各所述第一信息中的最高优先级,所述接收优先级为各所述第二信息中的最高优先级;所述第一终端基于所述发送优先级和所述接收优先级,执行以下任一项:在所述发送优先级高于所述接收优先级的情况下,所述第一终端发送各所述第一信息;在所述发送优先级等于所述接收优先级的情况下,所述第一终端发送各所述第一信息;在所述发送优先级低于所述接收优先级的情况下,所述第一终端接收各所述第二信息;在所述发送优先级等于所述接收优先级的情况下,所述第一终端接收各所述第二信息;在所述发送优先级大于第一阈值的情况下,所述第一终端发送各所述第一信息;在所述发送优先级等于第一阈值的情况下,所述第一终端发送各所述第一信息;在所述发送优先级小于第一阈值的情况下,所述第一终端接收各所述第二信息;在所述发送优先级等于第一阈值的情况下,所述第一终端接收各所述第二信息;在所述接收优先级大于第二阈值的情况下,所述第一终端接收各所述第二信息;在所述接收优先级等于第二阈值的情况下,所述第一终端接收各所述第二信息;在所述接收优先级小于第二阈值的情况下,所述第一终端发送各所述第一信息;在所述接收优先级等于第二阈值的情况下,所述第一终端发送各所述第一信息;在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1大于m2的情况下,所述第一终端发送各所述第一信息;在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,所述第一终端发送各所述第一信息;在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1小于m2的情况下,所述第一终端接收各所述第二信息;在m1个第一信息的优先级大于第三阈值,m2个第二信息的优先级大于第四阈值,且m1等于m2的情况下,所述第一终端接收各所述第二信息;存在至少一个第一信息的优先级大于或等于第五阈值的情况下,所述第一终端发送各所述第一信息;在各所述第一信息的优先级都小于或等于第五阈值的情况下,所述第一终端接收各所述第二信息;存在至少一个第二信息的优先级大于或等于第六阈值的情况下,所述第一终端接收各所述第二信息;在各所述第二信息的优先级都小于或等于第六阈值的情况下,所述第一终端发送各所述第一信息。
- 根据权利要求1所述的SL数据传输方法,其中,在所述第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源之后,所述方法还包括:所述第一终端基于所述目标发送资源,采用公式(1)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第三开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征PSFCH占用的符号数,表征相位跟踪参考信号PT-RS和信道状态信息参考信号CSI-RS占用的RE数,表征一个时隙中平均DMRS资源单元RE的个数;所述第三开销包括以下至少一项:所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号个数;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号个数;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号个数。 - 根据权利要求1所述的SL数据传输方法,其中,在所述第一终端对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源之后,所述方法还包括:所述第一终端基于所述目标发送资源,采用公式(2)计算第二阶旁链路控制信息SCI占用的RE数Q′SCI2:
其中,且l不包括第四开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的循环冗余校核CRC长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中调制与 编码策略MCS指示域中指示的MCS索引所对应的码率,α表征无线资源控制RRC配置的第二阶SCI的最大频谱效率,表征第一个正交频分复用技术OFDM符号上可用于映射第二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;所述第四开销包括以下至少一项:所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠的符号;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠的符号;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠的符号。 - 根据权利要求1所述的SL数据传输方法,其中,其中,所述第一开销包括以下至少一项:所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
- 一种旁链路SL数据传输方法,包括:在满足第二事件的情况下,第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;所述第二终端基于所述目标接收资源接收N1个第三信息;或者,第二终端基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;其中,所述第二事件包括以下至少一项:所述第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
- 根据权利要求15所述的SL数据传输方法,其中,所述第二终端对第一载波上的第三接收资源进行解速率匹配,包括:所述第二终端在确定所述第一载波上的第三接收资源的资源映射时,满足以下至少一项:所述第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解速率匹配;所述第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解速率匹配;所述第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解速率匹配;所述第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解速率匹配;所述第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解速率匹配;所述第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解速率匹配。
- 根据权利要求15所述的SL数据传输方法,其中,所述第二终端对第一载波上的第三接收资源进行解调或接收,包括:所述第二终端对所述第一载波上的第三接收资源进行解调或接收时,满足以下至少一项:所述第三接收资源在与至少一个第六载波上的第四时机和/或第四发送资源不存在重叠的位置或符号解调或接收;所述第三接收资源不在与至少一个第六载波上的第四时机和/或第四发送资源存在重叠的位置或符号解调或接收;所述第三接收资源在与至少一个第七载波上的第五时机和/或第四接收资源不存在重叠的位置或符号解调或接收;所述第三接收资源不在与至少一个第七载波上的第五时机和/或第四接收资源存在重叠的位置或符号解调或接收;所述第三接收资源在与至少一个第八载波上的第六时机和/或第五接收资源不存在重叠的位置或符号解调或接收;所述第三接收资源不在与至少一个第八载波上的第六时机和/或第五接收资源存在重叠的位置或符号解调或接收。
- 根据权利要求15至17任一项所述的SL数据传输方法,其中,所述第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,包括:所述第二终端基于目标pattern,对所述第一载波上的第三接收资源进行解速率匹配或解调或接收;其中,所述目标pattern包括以下至少一项:基于第二指示信息所确定的所述第一终端在一个或多个载波上速率匹配或打孔后的pattern;基于所述第三接收资源的位置与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源是否重叠或重叠的位置所确定的pattern;基于所述第三接收资源的位置与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源是否重叠或重叠的位置所确定的pattern;基于所述第三接收资源的位置与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源是否重叠或重叠的位置所确定的pattern。
- 根据权利要求15所述的SL数据传输方法,所述方法还包括:在满足所述第二事件的情况下,所述第二终端向所述第一终端发送第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息;其中,所述第一开销包括以下至少一项:所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源的重叠部分;所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源的重叠部分;所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源的重叠部分。
- 根据权利要求15至19任一项所述的SL数据传输方法,其中,所述第三接收资源包括以下至少一项:用于接收的预留资源;待接收的传输块TB;待接收的物理旁链路共享信道PSSCH;待接收的物理旁链路控制信道PSCCH;待接收的PSSCH解调参考信号DMRS;待接收的PSCCH DMRS。
- 根据权利要求15至20任一项所述的SL数据传输方法,其中,所述第四时机、所述第五时机和/或所述第六时机,包括以下至少一项:物理旁链路反馈信道PSFCH时机;PSFCH;PSFCH自动增益控制AGC;PSFCH保护间隔GP;GP符号;AGC符号;发送切换周期TX switching period所占的符号。
- 根据权利要求15至21任一项所述的SL数据传输方法,其中,所述第四发送资源包括以下至少一项:用于发送的周期预留资源和/或非周期预留资源;待发送的TB;待发送的PSSCH;待发送的PSCCH;待发送的PSSCH DMRS;待发送的PSCCH DMRS;待发送的PSFCH;待发送的PSFCH AGC;待发送的PSFCH GP。
- 根据权利要求15至22任一项所述的SL数据传输方法,其中,所述第四接收资源和/或所述第五接收资源包括以下至少一项:用于接收的预留资源;待接收的TB;待接收的PSSCH;待接收的PSCCH;待接收的PSSCH DMRS;待接收的PSCCH DMRS;待接收的PSFCH;待接收的PSFCH AGC;待接收的PSFCH GP。
- 根据权利要求15至23任一项所述的SL数据传输方法,其中,所述第五发送资源包括以下至少一项:用于发送的周期预留资源和/或非周期预留资源;待发送的TB;待发送的PSSCH;待发送的PSCCH;待发送的PSSCH DMRS;待发送的PSCCH DMRS。
- 根据权利要求15所述的SL数据传输方法,其中,所述第二终端基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息,包括:所述第二终端基于各所述第三信息的优先级及N2个第四信息的优先级,确定各所述第三信息对应的接收优先级和各所述第四信息对应的发送优先级;其中,所述接收优先级为各所述第三信息中的最高优先级,所述发送优先级为各所述第四信息中的最高优先级;所述第二终端基于所述接收优先级和所述发送优先级,执行以下任一项:在所述接收优先级高于所述发送优先级的情况下,所述第二终端接收各所述第三信息;在所述接收优先级等于所述发送优先级的情况下,所述第二终端接收各所述第三信息;在所述接收优先级低于所述发送优先级的情况下,所述第二终端发送各所述第四信息;在所述接收优先级等于所述发送优先级的情况下,所述第二终端发送各所述第四信息;在所述接收优先级大于第七阈值的情况下,所述第二终端接收各所述第三信息;在所述接收优先级等于第七阈值的情况下,所述第二终端接收各所述第三信息;在所述接收优先级小于第七阈值的情况下,所述第二终端发送各所述第四信息;在所述接收优先级等于第七阈值的情况下,所述第二终端发送各所述第四信息;在所述发送优先级大于第八阈值的情况下,所述第二终端发送各所述第四信息;在所述发送优先级等于第八阈值的情况下,所述第二终端发送各所述第四信息;在所述发送优先级小于第八阈值的情况下,所述第二终端接收各所述第三信息;在所述发送优先级等于第八阈值的情况下,所述第二终端接收各所述第三信息;在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1大于n2的情况下,所述第二终端接收各所述第三信息;在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,所述第二终端接收各所述第三信息;在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1小于n2的情况下,所述第二终端发送各所述第四信息;在n1个第三信息的优先级大于第九阈值,n2个第四信息的优先级大于第十阈值,且n1等于n2的情况下,所述第二终端发送各所述第四信息;存在至少一个第三信息的优先级大于或等于第十一阈值的情况下,所述第二终端接收各所述第三信息;在各所述第三信息的优先级都小于或等于第十一阈值的情况下,所述第二终端发送各所述第四信息;存在至少一个第四信息的优先级大于或等于第十二阈值的情况下,所述第二终端发送各所述第四信息;在各所述第四信息的优先级都小于或等于第十二阈值的情况下,所述第二终端接收各所述第三信息。
- 根据权利要求15所述的SL数据传输方法,其中,在所述第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源之后,所述方法还包括:所述第二终端基于所述目标接收资源,采用公式(3)计算一个物理资源块PRB内可用于PSSCH的资源单元RE数N′RE:
其中,表征第五开销,表征一个PRB内的子载波个数,表征一个时隙内可用于侧行的符号数,表征PSFCH占用的符号数,表征相位跟踪参考信号PT-RS和信道状态信息参考信号CSI-RS占用的RE数,表征一个时隙中平均DMRS资源单元RE的个数;所述第五开销包括以下至少一项:所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号个数;所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号个数;所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号个数。 - 根据权利要求15所述的SL数据传输方法,其中,在所述第二终端对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源之后,所述方法还包括:所述第二终端基于所述目标接收资源,采用公式(4)计算第二阶旁链路控制信息SCI占用的RE数Q′SCI2:
其中,且l不包括第六开销OSCI2表征第二阶SCI信息的比特数,LSCI2表征第二阶SCI的循环冗余校核CRC长度,表征第二阶SCI的码率偏移,表征第二阶SCI的调制阶数,R表征第一阶SCI中调制与编码策略MCS指示域中指示的MCS索引所对应的码率,α表征无线资源控制RRC配置的第二阶SCI的最大频谱效率,表征第一个正交频分复用技术OFDM符号上可用于映射第二阶SCI的RE的个数,表征PSFCH占用的符号数,γ表征最后一个第二阶SCI调制符号所在的PRB剩余的RE个数;所述第六开销包括以下至少一项:所述第二终端在所述第一载波上的第三接收资源与所述第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠的符号;所述第二终端在所述第一载波上的第三接收资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠的符号;所述第二终端在所述第一载波上的第三接收资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠的符号。 - 根据权利要求15所述的SL数据传输方法,其中,所述第二开销包括以下至少一项:所述第一终端在所述第一载波上的所述第一发送资源与所述第一终端在至少一个第二载波上的第一时机和/或第一接收资源的重叠部分;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源的重叠部分;所述第一终端在所述第一载波上的所述第一发送资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源的重叠部分。
- 一种旁链路SL数据传输装置,包括:发送模块,用于在满足第一事件的情况下,对第一载波上的第一发送资源进行速率匹配或打孔,得到目标发送资源;并基于所述目标发送资源发送M1个第一信息;或者,基于M1个第一信息的优先级及M2个第二信息的优先级,发送各所述第一信息或接收各所述第二信息;第一发送资源用于第一终端发送各所述第一信息;其中,所述第一事件包括以下至少一项:所述第一发送资源与第一终端在至少一个第二载波上的第一时机和/或第一接收资源存在重叠;所述第一接收资源用于第一终端接收M2个第二信息;所述第一终端接收到来自所述第二终端的第一消息,所述第一消息用于指示所述第二终端在所述第一载波上的第二接收资源与所述第二终端在至少一个第三载波上的第二时机和/或第二发送资源存在重叠;所述第二接收资源用于所述第二终端接收来自所述第一终端的各所述第一信息;所述第二终端在所述第一载波上的第二接收资源与所述第二终端和/或第三终端在至少一个第四载波上的第三发送资源存在重叠;所述第一终端接收到来自所述第二终端的第一指示信息;所述第一指示信息用于指示所述第一终端基于第一开销在一个或多个载波上进行SL发送,或指示所述第一终端进行速率匹配或打孔的相关信息。
- 一种旁链路SL数据传输装置,包括:接收模块,用于在满足第二事件的情况下,对第一载波上的第三接收资源进行解速率匹配或解调或接收,得到目标接收资源;并基于所述目标接收资源接收N1个第三信息;或者,基于N1个第三信息的优先级及N2个第四信息的优先级,接收各所述第三信息或发送各所述第四信息;第三接收资源用于所述第二终端接收各所述第三信息;其中,所述第二事件包括以下至少一项:所述第三接收资源与第二终端在至少一个第六载波上的第四时机和/或第四发送资源存在重叠;所述第四发送资源用于所述第二终端发送N2个第四信息;所述第二终端接收到来自所述第一终端的第三消息,所述第三消息用于指示所述第一终端在所述第一载波上的第五发送资源与所述第一终端在至少一个第七载波上的第五时机和/或第四接收资源存在重叠;所述第五发送资源用于所述第一终端向所述第二终端发送各所述第三信息;所述第一终端在所述第一载波上的第五发送资源与所述第一终端和/或第四终端在至少一个第八载波上的第六时机和/或第五接收资源存在重叠;所述第二终端接收到来自所述第一终端的第二指示信息;所述第二指示信息用于指示所述第二终端基于第二开销在一个或多个载波上进行SL接收,或指示所述第二终端基于所述第一终端进行速率匹配或打孔后的样式pattern进行SL接收。
- 一种第一终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至14任一项所述的旁链路SL数据传输方法的步骤。
- 一种第二终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求15至28任一项所述的旁链路SL数据传输方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至14任一项所述的旁链路SL数据传输方法,或者实现如权利要求15至28任一项所述的旁链路SL数据传输方法的步骤。
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| 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 |
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