WO2023050338A1 - 无线通信的方法和终端设备 - Google Patents

无线通信的方法和终端设备 Download PDF

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Publication number
WO2023050338A1
WO2023050338A1 PCT/CN2021/122229 CN2021122229W WO2023050338A1 WO 2023050338 A1 WO2023050338 A1 WO 2023050338A1 CN 2021122229 W CN2021122229 W CN 2021122229W WO 2023050338 A1 WO2023050338 A1 WO 2023050338A1
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WIPO (PCT)
Prior art keywords
terminal
candidate
terminals
indication information
sent
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PCT/CN2021/122229
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English (en)
French (fr)
Inventor
张世昌
赵振山
林晖闵
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2021/122229 priority Critical patent/WO2023050338A1/zh
Priority to CN202180100485.XA priority patent/CN117716713A/zh
Publication of WO2023050338A1 publication Critical patent/WO2023050338A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a wireless communication method and a terminal device.
  • the first mode the transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station.
  • the second mode the terminal selects a resource from the resource pool for data transmission.
  • a terminal for example, terminal A
  • a terminal will detect a resource conflict that occurs on a resource already used by another terminal (for example, terminal B) or a resource conflict that the terminal B is about to use
  • a resource conflict that may occur on resources is indicated to the terminal B, so that the terminal B can perform corresponding retransmission or resource reselection.
  • terminal A determines that resources reserved by multiple terminals overlap, in this case, for terminal A, how to determine the target terminal for sending the resource conflict indication is an urgent problem to be solved.
  • the embodiments of the present application provide a wireless communication method and a terminal device.
  • the terminal device can determine the target receiving terminal of the resource conflict indication among the multiple terminals where the resource conflict occurs, and further send the resource conflict indication to the target receiving terminal, which is beneficial to reduce The probability of resource conflicts improves system performance.
  • a wireless communication method including: a first terminal determines a target receiving terminal of first indication information among a plurality of candidate terminals according to target information, and the first indication information is used to indicate that a resource conflict occurs ;
  • the multiple candidate terminals include a reference candidate terminal and a first candidate terminal group, the resources reserved by the reference candidate terminal are target reception resources of the first terminal, and the first candidate terminal group includes at least one candidate terminal, resources reserved by candidate terminals in the first candidate terminal group overlap with resources reserved by the reference candidate terminal;
  • the target information includes at least one of the following:
  • a second aspect provides a terminal device configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.
  • the terminal device includes a unit configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.
  • a terminal device in a third aspect, includes: a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a chip is provided for implementing the method in the above first aspect or various implementation manners thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the method in the above first aspect or its various implementations.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a computer program product including computer program instructions, where the computer program instructions cause a computer to execute the method in the above first aspect or various implementation manners thereof.
  • a computer program which, when running on a computer, causes the computer to execute the method in the above first aspect or various implementations thereof.
  • the first terminal when resources reserved by multiple candidate terminals conflict, can determine the target receiving terminal of the resource conflict indication according to the target information, and further send the resource conflict indication to the target receiving terminal, which is beneficial Reduce the probability of resource conflicts and improve system performance. Moreover, determining the target receiving terminal of the resource conflict indication according to the signal quality of the candidate terminal is beneficial to reduce the hidden node problem, and determining the target receiving terminal of the resource conflict indication according to the priority of the data to be transmitted by the candidate terminal is conducive to ensuring high priority data to be transmitted Reliable transmission of data.
  • FIG. 1 is a schematic diagram of uplink communication within a network coverage area provided by the present application.
  • Fig. 2 is a schematic diagram of partial network coverage side communication provided by the present application.
  • Fig. 3 is a schematic diagram of outbound communication provided by the network coverage provided by the present application.
  • Fig. 4 is a schematic diagram of unicast sidelink communication provided by the present application.
  • Fig. 5 is a schematic diagram of a multicast sideline communication provided by the present application.
  • Fig. 6 is a schematic diagram of broadcast sideline communication provided by the present application.
  • Fig. 7 is a schematic diagram of a PSCCH and PSSCH frame structure provided by the present application.
  • Fig. 8 is a schematic diagram of sidelink transmission based on the second mode.
  • Fig. 9 is a schematic diagram of another sidelink transmission based on the second mode.
  • Fig. 10 is a schematic interaction diagram of a wireless communication method provided by an embodiment of the present application.
  • Fig. 11 is a schematic diagram of sidewalk transmission according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a communication device provided by another embodiment of the present application.
  • Fig. 14 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in the WLAN, and can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network A network device or a base station (gNB) in a network device or a network device in a future evolved PLMN network or a network device in an NTN network.
  • AP Access Point
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolution
  • eNB evolved base station
  • gNB base station
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • side communication according to the network coverage of the communicating terminal, it can be divided into network coverage inner communication, as shown in Figure 1; part of the network coverage side communication, as shown in Figure 2 ; and network coverage outside line communication, as shown in FIG. 3 .
  • Figure 1 In inline communication within network coverage, all terminals performing sideline communication are within the coverage of the same base station. Therefore, the above-mentioned terminals can perform sideline based on the same sideline configuration by receiving configuration signaling from the base station communication.
  • FIG. 2 In the case of partial network coverage for sidelink communication, some terminals performing sidelink communication are located within the coverage of the base station. These terminals can receive configuration signaling from the base station and perform sidelink communication according to the configuration of the base station. However, terminals located outside the network coverage cannot receive the configuration signaling from the base station. In this case, the terminals outside the network coverage will use the pre-configuration information and the physical The information carried in the Physical Sidelink Broadcast Channel (PSBCH) determines the sidelink configuration for sidelink communication.
  • PSBCH Physical Sidelink Broadcast Channel
  • Figure 3 For outbound communication under network coverage, all terminals performing side communication are located outside the network coverage, and all terminals determine side communication according to pre-configuration information to perform side communication.
  • device-to-device communication is based on a sidelink (Sidelink, SL) transmission technology based on device to device (D2D), and the communication data in the traditional cellular system is received or sent through the base station.
  • the method is different, so it has higher spectral efficiency and lower transmission delay.
  • the Internet of Vehicles system adopts the method of terminal-to-terminal direct communication, and two transmission modes are defined in 3GPP, which are respectively recorded as: the first mode and the second mode.
  • the embodiments of the present application may be applied to the first mode and/or the second mode.
  • the first mode the transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal, and can also allocate semi-static transmission to the terminal H. As shown in FIG. 1 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sidelink transmission to the terminal.
  • the second mode the terminal selects a resource from the resource pool for data transmission.
  • the terminal is located outside the coverage area of the cell, and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or, as shown in Figure 1, the terminal independently selects transmission resources from the resource pool configured by the network Make sideways transfers.
  • the second mode resource selection is performed according to the following steps:
  • Step 1 The terminal takes all available resources in the resource selection window as resource set A.
  • the terminal sends data in some time slots in the listening window but does not listen, all resources of these time slots in the corresponding time slots in the selection window are excluded.
  • the terminal uses the value set of the "resource reservation period (resource reservation period)" field in the resource pool configuration used to determine the corresponding time slot in the selection window.
  • the terminal detects the Physical Sidelink Control Channel (PSCCH) within the listening window, measure the Reference Signal Receiving Power (RSRP) of the PSCCH or the physical sidelink shared channel scheduled by the PSCCH (Physical Sidelink Shared Channel, PSSCH) RSRP, if the measured RSRP is greater than the sideline RSRP (SL-RSRP) threshold, and the reserved resources are determined according to the resource reservation information in the sideline control information transmitted in the PSCCH.
  • the corresponding resource is excluded from the resource set A. If the remaining resources in resource set A are less than X% of all resources in resource set A before resource exclusion, raise the SL-RSRP threshold by 3dB and perform step 1 again.
  • the value of X may be ⁇ 20, 35, 50 ⁇ , and the terminal determines the parameter X from the set ⁇ 20, 35, 50 ⁇ according to the priority of the data to be sent.
  • the above SL-RSRP threshold is related to the priority carried in the PSCCH sensed by the terminal and the priority of the data to be sent by the terminal. The terminal uses the remaining resources after resource exclusion in the resource set A as the candidate resource set.
  • Step 2 The terminal randomly selects several resources from the candidate resource set as sending resources for the terminal to perform initial transmission and retransmission.
  • LTE-V2X Long Term Evolution Vehicle to Everything
  • NR-V2X Long Term Evolution Vehicle to Everything
  • unicast transmission there is only one terminal at the receiving end, as shown in Figure 4, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, or in a certain All terminals within the transmission distance, as shown in Figure 5, UE1, UE2, UE3, and UE4 form a communication group, in which UE1 sends data, and other terminal devices in the group are receiving end terminals; for broadcast transmission mode, its receiving An end is any terminal around the transmitting terminal. As shown in FIG. 6 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6 are all receiving terminals.
  • a resource pool is introduced in the sideline transmission system.
  • the so-called resource pool is a collection of transmission resources. Whether it is the transmission resource configured by the network or the transmission resource independently selected by the terminal, it is a resource in the resource pool.
  • Resource pools can be configured through pre-configuration or network configuration, and one or more resource pools can be configured.
  • the resource pool is further divided into a sending resource pool and a receiving resource pool.
  • the sending resource pool means that the transmission resources in the resource pool are used to send sidelink data;
  • the receiving resource pool means that the terminal receives sidelink data on the transmission resources in the resource pool.
  • the second-order sidelink control information (Sidelink Control Information, SCI) is introduced, and the first-order SCI is carried in the physical sidelink control channel (Physical Sidelink Control Channel, PSCCH), which is used to indicate the physical sidelink shared channel ( Physical Sidelink Shared Channel, PSSCH) transmission resources, reserved resource information, modulation and coding scheme (Modulation and Coding Scheme, MCS) level, priority and other information
  • PSSCH Physical Sidelink Control Channel
  • MCS Modulation and Coding Scheme
  • the reference signal (Demodulation Reference Signal, DMRS) is demodulated to indicate the source (Source) identification (Identity, ID), target (Destination) ID, hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) ID, new data Indicates (New Data Indicator, NDI) and other information used for data demodulation.
  • DMRS Demodulation Reference Signal
  • the second-order SCI is mapped from the first DMRS symbol of the PSSCH, first in the frequency domain and then in the time domain.
  • the PSCCH occupies 3 symbols (symbol 1, symbol 2, and symbol 3), and the DMRS of the PSSCH occupies symbols 4.
  • Symbol 11 the second-order SCI is mapped from symbol 4, frequency division multiplexing with DMRS on symbol 4, the second-order SCI is mapped to symbol 4, symbol 5, and symbol 6, and the resource size occupied by the second-order SCI depends on The number of bits in the second-order SCI.
  • PSFCH Physical Sidelink Feedback Channel
  • PRB physical resource block
  • OFDM Orthogonal frequency-division multiplexing
  • PSFCH resources are configured with 1, 2 or 4 time slots as a period, and the PSFCH resources exist in the time slots, and the PSFCH resources are located in the last OFDM symbol that can be used for sidelink transmission in the time slot.
  • the PSFCH is only used to carry HARQ feedback information, and the capacity of one PSFCH is one bit.
  • the PSFCH transmission resource is determined according to the time-frequency position of its corresponding PSSCH transmission resource.
  • NR-V2X the following two PSFCH resource determination methods are supported, and the specific method for determining PSFCH resources is configured according to high-layer signaling.
  • Mode 1 Determine the PSFCH transmission resource according to the first subchannel of the PSSCH frequency domain resource
  • Mode 2 The PSFCH transmission resource is determined according to all subchannels occupied by the PSSCH frequency domain.
  • Mode 2 is more suitable for scenarios requiring more sidelink HARQ feedback resources, for example, the second type of sidelink HARQ feedback mode in multicast.
  • the corresponding PSFCH transmission resource set can be determined
  • the index of the PSFCH transmission resource in this resource set is first determined according to the order of RB from low to high, and then according to the order of CS pair from low to high. Further, in this resource set, the transmission of PSFCH is determined by the following formula resource:
  • P ID represents the sender ID information, that is, the source ID of the sender UE carried in the SCI.
  • M ID 0; for ACK/NACK multicast In the sideline HARQ feedback mode, the M ID represents the intra-group identifier of the UE at the receiving end configured by the high layer.
  • PSFCH resources are configured by side PSFCH configuration signaling (SL-PSFCH-Config-r16), and the parameters included in SL-PSFCH-Config-r16 are as follows.
  • the side row PSFCH configuration period (sl-PSFCH-Period-r16) is used to configure the period of PSFCH resources
  • the side row PSFCH resource block (Resource Block, RB) set (sl-PSFCH-RB-Set-r16) is used to configure
  • the OFDM symbol where the PSFCH resource is located can be used for the PRB transmitted by PSFCH, and the number of sideline multiplexing cyclic shift (Cyclic Shift, CS) pairs (sl-NumMuxCS-Pair-r16) is used to configure the cycle of the PFSCH sequence allowed in a PRB
  • the number of shifts, the side PSFCH interval time (sl-MinTimeGapPSFCH-r16) is used to configure the minimum time interval
  • the terminal randomly selects transmission resources in the resource pool, or selects transmission resources according to the interception results.
  • This resource selection method can avoid interference between terminals to a certain extent, but there are still the following The problem:
  • terminal B selects a resource based on interception, and uses the resource to send side data to terminal A. Since terminal B and terminal C are far apart, they cannot hear each other Therefore, B and C may select the same transmission resource, then the data sent by terminal C will interfere with the data sent by terminal B, which is the hidden node problem.
  • Half-duplex (Half-duplex) problem: When a terminal selects a transmission resource by listening, within the listening window, if the terminal sends side data on a certain time slot, due to the limitation of half-duplex, the terminal will Data sent by other terminals cannot be received on this time slot, and there is no interception result. Therefore, when the terminal performs resource exclusion, it will exclude all resources corresponding to this time slot in the selection window to avoid interference with other terminals. . Due to the limitation of half-duplex, the terminal excludes many resources that do not need to be excluded.
  • both sending terminal B and sending terminal C can monitor each other, but the target receiving terminal A of sending terminal B is far away from sending terminal C, and the target receiving terminal D of sending terminal C is far away from sending terminal B.
  • sending terminal B and sending terminal C use the same time-frequency resources, they will not affect the reception of their respective target receiving terminals.
  • the receiving power of the signal detected by the other party during the interception process may be very low. High, so that both parties will choose orthogonal video resources, which may eventually lead to a decline in resource utilization efficiency.
  • One terminal sends a reference resource set for another terminal (UE-B) to assist the other terminal in resource selection.
  • the reference resource set can be obtained by UE-A obtains the set of available resources according to the result of resource sensing, the indication of the base station, etc., or determines according to the detected SCI.
  • the reference resource set may be a resource set suitable for use by UE-B.
  • the resource set may also be a resource set that is not suitable for UE-B, and UE-B avoids selecting resources in the resource set when selecting resources, thereby avoiding hidden Terminals, half-duplex limitations, etc.
  • the terminal undertaking the UE-A function is called a resource coordination terminal.
  • Another resource selection enhancement scheme is that UE-A indicates to UE-B the detected resource conflicts that have occurred on the resources that UE-B has used or the possible resource conflicts that may occur on resources that UE-B will use, so that UE-B B can perform corresponding retransmission or resource reselection.
  • UE-A determines that the resources reserved by multiple terminals overlap, in this case, how UE-A determines the target terminal for sending the resource conflict indication is an urgent problem to be solved.
  • FIG. 10 is a schematic interaction diagram of a wireless communication method 100 provided by an embodiment of the present application. As shown in FIG. 10, the method 100 may include at least part of the following:
  • the first terminal determines, among multiple candidate terminals, a target receiving terminal of the first indication information, where the first indication information is used to indicate that a resource conflict occurs.
  • the first indication information may also be replaced by a resource conflict indication, a resource collision indication, a resource overlap indication, or similar expressions.
  • the target receiving terminal of the first indication information is marked as the second terminal.
  • the first terminal may send the first indication information to the second terminal.
  • the second terminal may determine that resources reserved by itself overlap with resources reserved by other terminals.
  • the second terminal may perform resource reselection, for example, when performing When reselecting resources, avoid selecting resources with resource conflicts, thereby reducing the probability of resource conflicts and improving system performance.
  • the resources reserved by the multiple candidate terminals conflict, or the resources reserved by the multiple candidate terminals overlap.
  • the multiple candidate terminals include a reference candidate terminal and a first candidate terminal group, where the first candidate terminal group includes at least one candidate terminal, and the resources reserved by the candidate terminals in the first candidate terminal group are the same as The resources reserved by the reference candidate terminals overlap.
  • the reference candidate terminal is a target sending terminal that the first terminal will receive data from, or in other words, the first terminal will receive sidelink data sent by the reference candidate terminal.
  • the resource reserved by the reference candidate terminal is the target receiving resource of the first terminal.
  • the first terminal will receive the sidelink data sent by the reference candidate terminal on the target receiving resource, such as a transport block (Transport Block, TB).
  • Transport Block Transport Block
  • the first terminal determines that the resource reserved by the reference candidate terminal is the target receiving resource, but this does not mean that the first terminal must receive data on the target receiving resource, for example, the first
  • the reference candidate terminal may need to perform resource reselection. In this case, the first terminal may not perform data reception on the resources reserved by the reference candidate terminal.
  • the resource reserved by the candidate terminal in the first candidate terminal group overlaps with the resource reserved by the reference candidate terminal may mean that the resource reserved by the candidate terminal is at least partially the same as the resource reserved by the reference candidate terminal.
  • the resources reserved by the candidate terminal are exactly the same as the resources reserved by the reference candidate terminal.
  • the resources reserved by the candidate terminal are partially the same as the resources reserved by the reference candidate terminal.
  • the resources reserved by the candidate terminal include the resources reserved by the reference candidate terminal, or the resources reserved by the reference candidate terminal include the resources reserved by the candidate terminal. remaining resources, etc.
  • the first candidate terminal group may include at least one first-type candidate terminal and/or at least one second-type candidate terminal.
  • the first type of candidate terminal takes the first terminal as the target receiving terminal, that is, the first type of candidate terminal is the target sending terminal of the first terminal.
  • the second type of candidate terminal does not take the first terminal as the target receiving terminal, that is, the second type of candidate terminal is not the target receiving terminal of the first terminal, in other words, the second type of candidate terminal is a non-target sending terminal of the first terminal.
  • the target information includes at least one of the following:
  • the target receiving terminal of the resource conflict indication is determined according to the status of the candidate terminal receiving the first indication information, for example, preferably sending the resource conflict indication to the candidate terminal receiving the resource conflict indication, or avoiding sending the resource conflict indication to a candidate terminal that does not receive the resource conflict indication
  • the sending of the resource conflict indication by the candidate terminal is beneficial to ensure that the candidate terminal receiving the resource conflict indication can perform resource reselection, thereby reducing the probability of resource conflict and improving system performance.
  • the signal quality of a candidate terminal can reflect the degree of interference to other terminals caused by the data transmission of the candidate terminal. Therefore, according to the signal quality of the candidate terminal, the target receiving terminal for the resource conflict indication is determined, for example, a terminal with a high signal quality is preferred.
  • Candidate terminals send resource conflict indications to avoid sending resource conflict indications to candidate terminals with low signal quality, which helps reduce hidden node problems in sidelink transmission.
  • the target receiving terminal of the resource conflict indication is determined according to the priority of the data to be sent by the candidate terminal, for example, it is preferable to send the resource conflict indication to the candidate terminal corresponding to the low priority
  • the candidate terminal corresponding to the data to be sent at the level sends a resource conflict indication, which is beneficial to ensure the transmission of high-priority data.
  • the signal quality of the candidate terminal may include at least one of the following:
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • SINR Signal to Interference plus Noise Ratio
  • the status of multiple candidate terminals receiving the first indication information may include whether the candidate terminal receives the first indication information sent by the target receiving terminal of the candidate terminal, or whether the candidate terminal receives the first indication information sent by other terminals (not limited to the target receiving terminal) The first indication information sent by the terminal).
  • the status of receiving the first indication information by the plurality of candidate terminals includes but is not limited to at least one of the following:
  • the candidate terminal does not receive the first indication information sent by other terminals;
  • the candidate terminal receives first indication information sent by other terminals;
  • the candidate terminal only receives the first indication information sent by the target receiving terminal of the candidate terminal;
  • the candidate terminal does not receive the first indication information sent by the target receiving terminal of the candidate terminal.
  • the status of receiving the first indication information by the plurality of candidate terminals may also be replaced by:
  • the state in which the plurality of candidate terminals receive the first indication information includes but is not limited to at least one of the following:
  • the candidate terminal does not support receiving the first indication information sent by other terminals;
  • the candidate terminal supports receiving first indication information sent by other terminals
  • the candidate terminal only supports receiving the first indication information sent by the target receiving terminal of the candidate terminal;
  • the candidate terminal does not support receiving the first indication information sent by the target receiving terminal of the candidate terminal.
  • the method 100 further includes:
  • the first terminal determines, according to the first information, a state in which each candidate terminal among the multiple candidate terminals receives the first indication information, where the first information includes at least one of the following:
  • SCI Sideline control information SCI, resource pool configuration information, pre-configuration information (or predefined information).
  • the configuration information of the resource pool may include at least one of the following:
  • the resource pool allows the terminal to send a resource conflict indication to the non-target sending terminal
  • the resource pool allows the terminal to send resource conflict indications to other terminals.
  • the resource pool allows the terminal to send a resource conflict indication to the target sending terminal.
  • the pre-configuration information may include at least one of the following:
  • the first terminal may determine the status of the candidate terminal receiving the resource conflict indication according to a specific bit field in the SCI sent by the candidate terminal.
  • the SCI may include a second-order SCI.
  • the candidate terminal can indicate the status of the candidate terminal receiving the resource conflict indication through the existing information field in the SCI (such as a reserved field, or a reserved bit) or a newly added information field. Not limited.
  • the first terminal determines different states of the candidate terminal receiving the resource conflict indication through the SCI.
  • Example 1 2 bits in the SCI are used to indicate different states of the candidate terminals receiving resource conflict indications.
  • Table 1 shows a corresponding relationship between the value of the 2 bits and different states in which the candidate terminal receives the resource conflict indication.
  • Example 2 1 bit in the SCI is used to indicate the different states of the candidate terminal receiving the resource conflict indication.
  • Table 2 shows a corresponding relationship between the value of the 1 bit and different states in which the candidate terminal receives the resource conflict indication.
  • the first terminal determines different states in which the candidate terminal receives the resource conflict indication according to the configuration information of the resource pool and the SCI.
  • Example 3 The resource pool allows a terminal to send a resource conflict indication to a non-target sending terminal, and the candidate terminal can indicate different states of the candidate terminal receiving the resource conflict indication through 2 bits in the SCI.
  • Table 3 shows a corresponding relationship between the value of the 2 bits and different states in which the candidate terminal receives the resource conflict indication.
  • Example 4 The resource pool allows a terminal to send a resource conflict indication to a non-target sending terminal, and the candidate terminal can indicate different states of the candidate terminal receiving the resource conflict indication through 1 bit in the SCI.
  • Table 4 shows a corresponding relationship between the value of the 1 bit and different states in which the candidate terminal receives the resource conflict indication.
  • Example 5 The resource pool does not allow the terminal to send a resource conflict indication to a non-target sending terminal, and the candidate terminal can indicate different states of the candidate terminal receiving the resource conflict indication through 1 bit in the SCI.
  • Table 5 shows a corresponding relationship between the value of the 1 bit and different states in which the candidate terminal receives the resource conflict indication.
  • Table 6 shows another correspondence between the value of the 1 bit and different states in which the candidate terminal receives the resource conflict indication.
  • the first terminal determines that the reference candidate terminal may be the one sending terminal.
  • the first terminal may determine a reference candidate terminal among the multiple sending terminals.
  • the multiple sending terminals all target the first terminal as the receiving terminal, and the resources reserved by the multiple sending terminals overlap, which may mean that the resources reserved by the multiple sending terminals are at least partially the same. That is, there are multiple terminals that will send data to the first terminal, and the resources used by the multiple terminals to send data overlap.
  • the first terminal is UE-A
  • UE-B and UE-C will send data to UE-A
  • UE-D and UE-E will not send data to UE-A
  • UE-B and UE -C is the target transmitting terminal of UE-A
  • UE-D and UE-E are not the target transmitting terminals of UE-A
  • UE-D and UE-E are not target transmitting terminals.
  • the resources reserved by the UE-B and UE-C overlap, so the reference candidate terminal can be determined in the UE-B and UE-C.
  • the first terminal determines the reference candidate terminal among the multiple sending terminals according to the second information, where the second information includes at least one of the following:
  • the signal quality of the plurality of transmitting terminals is the signal quality of the plurality of transmitting terminals
  • the embodiment of the present application does not limit the first terminal to determine reference candidates based on the status of the multiple sending terminals receiving the first indication information, the signal quality of the multiple sending terminals, and the priorities of the data to be sent by the multiple sending terminals. The order in which the terminal is used.
  • the first terminal may first select according to the priority of the data to be sent, or may first select according to the status of receiving the first indication information, or may first select according to the signal quality, or, according to the When a piece of information can select a sending terminal, further selection may not be made in combination with other information.
  • This application does not limit the use rules for determining a reference candidate terminal based on the above information.
  • the reference candidate terminal satisfies at least one of the following conditions:
  • the reference candidate terminal has the highest priority of the data to be sent among the plurality of sending terminals
  • the reference candidate terminal does not receive the first indication information sent by the non-target receiving terminal or other terminals;
  • the reference candidate terminal has the highest signal quality among the multiple sending terminals.
  • the first terminal may determine a reference candidate terminal according to the following first criterion:
  • the reference candidate terminal may be further determined based on the status of the sending terminal receiving the resource conflict indication, for example, the sending terminal that does not receive the resource conflict indication is determined to be the reference candidate terminal.
  • the reference candidate terminal may further be determined based on the signal quality of the sending terminal, for example, the sending terminal with the highest signal quality is determined as the reference candidate terminal.
  • the first terminal may determine a reference candidate terminal according to the following second criterion:
  • a reference candidate terminal may be further determined based on the signal quality of the sending terminals, for example, the sending terminal with the highest signal quality is determined to be the reference candidate terminal.
  • the first terminal may determine a reference candidate terminal according to the following third criterion:
  • the reference candidate terminal may further be determined based on the signal quality of the sending terminal, for example, the sending terminal with the highest signal quality is determined as the reference candidate terminal.
  • the target information includes first target information
  • the S110 includes:
  • the first target information among the reference candidate terminal and the first candidate terminal group, determine the target receiving terminal of the first indication information, where the first target information includes at least one of the following item:
  • the reference candidate terminal is the target receiving terminal indicated by the resource conflict, which is conducive to ensuring high priority data transmission.
  • the reference candidate terminal is the target receiving terminal indicated by the resource conflict, which is beneficial to avoid hidden node problem.
  • the reference candidate terminal receives the resource conflict indication
  • the candidate terminals in the first candidate terminal group do not receive the resource conflict indication
  • determining the reference candidate terminal as the target receiving terminal of the resource conflict indication is beneficial to ensure that the terminal receiving the resource conflict indication Perform resource reselection to reduce the probability of resource conflicts and improve system performance.
  • the reference candidate terminal does not receive the first indication information sent by the target receiving terminal, and there is at least one candidate terminal in the first candidate terminal group that receives the first indication information sent by other terminals, in the at least one A target receiving terminal of the first indication information is determined among the candidate terminals.
  • the reference candidate terminal does not support receiving the resource conflict indication sent by the first terminal, and there is at least one candidate terminal in the first candidate terminal group that supports receiving the resource conflict indication, in this case, the resource conflict indication may be determined in the at least one candidate terminal Therefore, the candidate terminals that can support receiving resource conflict indications can perform resource reselection, which is beneficial to reduce the probability of resource conflicts, improve system performance, and avoid hidden node problems in sidelink transmission.
  • the first terminal may determine according to at least one of the signal quality of the at least one candidate terminal, the priority of the data to be transmitted of the at least one candidate terminal, and the priority of the data to be transmitted of the reference candidate terminal The target receiving terminal of the first indication information.
  • the candidate terminal whose signal quality is the lowest among the at least one candidate terminal, or whose signal quality is lower than a certain threshold is the target receiving terminal of the resource conflict indication.
  • determine that the candidate terminal with the lowest priority of the data to be sent among the at least one candidate terminal is the target receiving terminal of the resource conflict indication, or determine that the priority of the data to be sent among the at least one candidate terminal is lower than a certain priority threshold
  • the candidate terminal is the target receiving terminal of the resource conflict indication.
  • a candidate terminal whose priority of the data to be sent is lower than that of the reference candidate terminal is the target receiving terminal of the resource conflict indication.
  • the determining the target receiving terminal of the first indication information among the at least one candidate terminal includes:
  • Determining that a candidate terminal satisfying a first condition among the at least one candidate terminal is a target receiving terminal of the first indication information, where the first condition includes but is not limited to at least one of the following conditions:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a first threshold
  • resource preemption pre-emption
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, and the priority of the data to be sent by the reference candidate terminal is higher than the first priority level threshold;
  • the candidate terminal receives first indication information sent by a non-target receiving terminal or other terminals.
  • the signal quality of the candidate terminal measured by the first terminal is not less than the first threshold. It can be considered that the interference caused by the data transmission of the candidate terminal is relatively large, and determining the target receiving terminal of the resource conflict indication among such candidate terminals is beneficial to avoid side The hidden node problem of row transmission.
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, and/or, the priority of the data to be sent by the reference candidate terminal is higher than the first priority threshold, indicating that this type of terminal is to be sent.
  • the priority of the data to be sent is low, or the priority of the data to be sent by the reference candidate terminal is high, and the target receiving terminal of the resource conflict indication is determined among such candidate terminals, which is conducive to ensuring that the data to be sent with high priority uses the conflict first resources to transfer.
  • the first threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the first threshold through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the first priority threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the first priority threshold through RRC signaling.
  • the method 100 also includes:
  • the first terminal determines the target receiving terminal of the first indication information according to the signal quality of multiple candidate terminals meeting the first condition and/or the priority of data to be sent by the multiple candidate terminals.
  • the first terminal determines N candidate terminals with the best signal quality among multiple candidate terminals meeting the first condition as target receiving terminals of the first indication information, where N is the first The maximum number of pieces of the first indication information that the terminal can send within the time slot for sending the first indication information.
  • the first terminal determines N candidate terminals with the highest priority among multiple candidate terminals that meet the first condition as target receiving terminals of the first indication information, where N is the first The maximum number of pieces of the first indication information that the terminal can send within the time slot for sending the first indication information.
  • the first terminal determines the candidate terminal with the highest priority among multiple candidate terminals meeting the first condition as the target receiving terminal of the first indication information, where N is the The maximum number of the first indication information that can be sent within the time slot for sending the first indication information.
  • the reference candidate terminal receives the first indication information sent by the target receiving terminal (or, the reference candidate terminal supports receiving the resource conflict indication sent by the first terminal), and the first candidate terminal group There is at least one candidate terminal that satisfies the second condition, and the reference candidate terminal is determined to be a target receiving terminal of the first indication information.
  • the candidate terminals satisfying the second condition may be considered as a type of terminal with relatively high signal interference, or may also be considered as a type of terminal with a higher priority of the data to be sent, or, the priority of the data to be sent A class of terminals that have higher priority than reference candidate terminals for data to be sent.
  • the data to be sent of the reference candidate terminal has a lower priority.
  • the second condition includes but is not limited to at least one of the following:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a second threshold
  • the candidate terminal does not receive the first indication information sent by the non-target receiving terminal or other terminals;
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is lower than that of the second Priority threshold.
  • the second condition may include the following conditions:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a second threshold
  • the candidate terminal does not receive the first indication information sent by non-target receiving terminals or other terminals.
  • the second condition may include the following conditions:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a second threshold
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is lower than that of the second Priority threshold.
  • the second threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the second threshold through RRC signaling.
  • the second priority threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the second priority threshold through RRC signaling.
  • the reference candidate terminal receives the first indication information sent by the target receiving terminal, and there is at least one candidate terminal satisfying the third condition in the first candidate terminal group, and there is at least one candidate terminal satisfying the fourth condition A candidate terminal, determining a candidate terminal that satisfies the fourth condition as a target receiving terminal of the first indication information.
  • the candidate terminals satisfying the third condition may be regarded as a type of terminal with low signal interference.
  • the candidate terminals satisfying the fourth condition can be regarded as a type of terminal with relatively large signal interference, or a type of terminal that does not support receiving resource conflict indications, or a type of terminal with a lower priority of the data to be sent
  • the priority of the data to be sent is lower than the priority of the data to be sent by the reference candidate terminal.
  • the target receiving terminal of the resource conflict indication is determined among the candidate terminals that meet the fourth condition, so that such terminals can perform resource reselection according to the resource conflict indication, which is beneficial to avoid the hidden node problem of side transmission, or has It is beneficial to ensure the reliable transmission of data with high priority.
  • the third condition includes but is not limited to:
  • the signal quality of the candidate terminal measured by the first terminal is not greater than a third threshold
  • the fourth condition includes but is not limited to at least one of the following:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a fourth threshold
  • the candidate terminal receives the first indication information sent by the non-target receiving terminal or other terminals;
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is higher than that of the third Priority threshold.
  • the fourth condition includes the following conditions:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a fourth threshold
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is higher than that of the third Priority threshold.
  • the fourth condition includes the following conditions:
  • the signal quality of the candidate terminal measured by the first terminal is not less than a fourth threshold
  • the candidate terminal receives the first indication information sent by the non-target receiving terminal or other terminals.
  • the third threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the third threshold through RRC signaling.
  • the fourth threshold is preconfigured (or, predefined), or configured by a network device.
  • the network device configures the fourth threshold through RRC signaling.
  • the third priority threshold (or, predefined) is pre-configured, or configured by a network device.
  • the network device configures the third priority threshold through RRC signaling.
  • the method 100 also includes:
  • the first The terminal determines the target receiving terminal of the first indication information according to the signal quality of multiple candidate terminals meeting the fourth condition and/or the priority of data to be sent by the multiple candidate terminals.
  • the first terminal determines N candidate terminals with the best signal quality among multiple candidate terminals meeting the fourth condition as target receiving terminals of the first indication information, where N is the first The maximum number of pieces of the first indication information that the terminal can send within the time slot for sending the first indication information.
  • the first terminal determines N candidate terminals with the highest priority among multiple candidate terminals that meet the fourth condition as target receiving terminals of the first indication information, where N is the first The maximum number of pieces of the first indication information that the terminal can send within the time slot for sending the first indication information.
  • the first terminal determines the candidate terminal with the highest priority among multiple candidate terminals meeting the fourth condition as the target receiving terminal of the first indication information, where N is the The maximum number of the first indication information that can be sent within the time slot for sending the first indication information.
  • the first terminal may, according to the signal quality of the multiple candidate terminals, the priority of the data to be sent, the status of receiving resource conflict indications, and other information,
  • the target receiving terminal of the resource conflict indication is determined, and the resource conflict indication is further sent to the target receiving terminal, which is beneficial to reduce the probability of resource conflict and improve system performance.
  • determining the target receiving terminal of the resource conflict indication according to the signal quality of the candidate terminal is beneficial to reduce the hidden node problem
  • determining the target receiving terminal of the resource conflict indication according to the priority of the data to be transmitted by the candidate terminal is conducive to ensuring high priority data to be transmitted Reliable transmission of data.
  • Fig. 12 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the processing unit 410 is configured to, according to the target information, determine a target receiving terminal of the first indication information among multiple candidate terminals, where the first indication information is used to indicate that a resource conflict occurs;
  • the multiple candidate terminals include a reference candidate terminal and a first candidate terminal group, where resources reserved by the reference candidate terminal are target reception resources of the terminal device, and the first candidate terminal group includes at least one candidate terminal, so The resource reserved by the candidate terminal in the first candidate terminal group overlaps with the resource reserved by the reference candidate terminal;
  • the target information includes at least one of the following:
  • the state in which the plurality of candidate terminals receive the first indication information includes at least one of the following:
  • the candidate terminal does not receive the first indication information sent by other terminals;
  • the candidate terminal receives first indication information sent by other terminals;
  • the candidate terminal only receives the first indication information sent by the target receiving terminal of the candidate terminal;
  • the candidate terminal does not receive the first indication information sent by the target receiving terminal of the candidate terminal.
  • the processing unit 410 is further configured to:
  • the first information determine the status of each candidate terminal in the plurality of candidate terminals receiving the first indication information, where the first information includes at least one of the following:
  • SCI Sideline control information SCI, resource pool configuration information, pre-configuration information.
  • the target information includes first target information
  • the processing unit 410 is specifically configured to:
  • the first target information among the reference candidate terminal and the first candidate terminal group, determine the target receiving terminal of the first indication information, where the first target information includes at least one of the following item:
  • the processing unit 410 is further configured to:
  • the reference candidate terminal does not receive the first indication information sent by the target receiving terminal, and there is at least one candidate terminal in the first candidate terminal group that receives the first indication information sent by other terminals, in the at least one candidate terminal Determine the target receiving terminal of the first indication information.
  • the processing unit 410 is further configured to:
  • Determining that a candidate terminal satisfying a first condition among the at least one candidate terminal is a target receiving terminal of the first indication information, where the first condition includes at least one of the following conditions:
  • the signal quality of the candidate terminal measured by the terminal device is not less than a first threshold
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, and the priority of the data to be sent by the reference candidate terminal is higher than the first priority level threshold;
  • the candidate terminal receives first indication information sent by a non-target receiving terminal or other terminals.
  • the processing unit 410 is further configured to:
  • the terminal device If there are multiple candidate terminals satisfying the first condition, and the terminal device cannot send the first indication information to all candidate terminals satisfying the first condition within one time slot, according to satisfying the first condition, Determine the target receiving terminal of the first indication information based on the signal quality of multiple candidate terminals under one condition.
  • the processing unit 410 is further configured to:
  • N candidate terminals with the best signal quality among multiple candidate terminals meeting the first condition as target receiving terminals of the first indication information, where N is the terminal device sending the first indication The maximum number of the first indication information that can be sent within the time slot of the information.
  • the first threshold is pre-configured or configured by a network device.
  • the first priority threshold is pre-configured or configured by a network device.
  • the processing unit 410 is further configured to:
  • the reference candidate terminal receives the first indication information sent by the target receiving terminal, and at least one candidate terminal in the first candidate terminal group satisfies the second condition, determine the reference candidate terminal as the first indication information target receiving terminal;
  • the second condition includes at least one of the following:
  • the signal quality of the candidate terminal measured by the terminal device is not less than a second threshold
  • the candidate terminal does not receive the first indication information sent by the non-target receiving terminal or other terminals;
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is lower than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is lower than that of the second Priority threshold.
  • the second threshold is preconfigured, or configured by a network device.
  • the second priority threshold is pre-configured or configured by a network device.
  • the processing unit 410 is further configured to:
  • the reference candidate terminal receives the first indication information sent by the target receiving terminal, and there is at least one candidate terminal satisfying the third condition and at least one candidate terminal satisfying the fourth condition in the first candidate terminal group, determining that the candidate terminal meeting the fourth condition is the target receiving terminal of the first indication information;
  • the third condition includes that the signal quality of the candidate terminal measured by the terminal device is not greater than a third threshold
  • the fourth condition includes at least one of the following:
  • the signal quality of the candidate terminal measured by the terminal device is not less than a fourth threshold
  • the candidate terminal receives the first indication information sent by the non-target receiving terminal or other terminals;
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal
  • the priority of the data to be sent by the reference candidate terminal is higher than the priority of the data to be sent by the candidate terminal, or the priority of the data to be sent by the reference candidate terminal is higher than that of the third Priority threshold.
  • the third threshold is preconfigured or configured by a network device.
  • the fourth threshold is preconfigured or configured by a network device.
  • the third priority threshold is pre-configured or configured by a network device.
  • the processing unit 410 is further configured to:
  • the terminal device cannot send the first indication information to all candidate terminals meeting the fourth condition within one time slot, according to the Determine the target receiving terminal of the first indication information based on the signal quality of multiple candidate terminals under four conditions.
  • the processing unit 410 is further configured to:
  • N candidate terminals with the best signal quality among multiple candidate terminals meeting the fourth condition as target receiving terminals of the first indication information, where N is the terminal device sending the first indication The maximum number of the first indication information that can be sent within the time slot of the information.
  • the processing unit 410 is further configured to:
  • the reference candidate terminal is determined among multiple sending terminals, the multiple sending terminals all target the terminal device as a receiving terminal, and resources reserved by the multiple sending terminals overlap, wherein , the second information includes at least one of the following:
  • the signal quality of the plurality of transmitting terminals is the signal quality of the plurality of transmitting terminals
  • the reference candidate terminal satisfies at least one of the following conditions:
  • the reference candidate terminal has the highest priority of the data to be sent among the plurality of sending terminals
  • the reference candidate terminal does not receive the first indication information sent by the non-target receiving terminal or other terminals;
  • the reference candidate terminal has the highest signal quality among the multiple sending terminals.
  • the first candidate terminal group includes at least one first-type candidate terminal and/or at least one second-type candidate terminal, where the second-type candidate terminal does not use the terminal device as Target receiving terminal.
  • the terminal device 400 further includes:
  • a communication unit 420 configured to send the first indication information to a target receiving terminal of the first indication information.
  • the above-mentioned communication module may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the above determination module may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for realizing the method shown in FIG. 10
  • the corresponding process of the terminal device in 100 will not be repeated here.
  • Fig. 13 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 13 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can call and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the first terminal in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the first terminal in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • FIG. 14 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 14 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the first terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first terminal in the methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the first terminal in the methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the 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), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a 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, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the first terminal in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the first terminal in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the first terminal in each method of the embodiment of the present application.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product may be applied to the first terminal in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiment of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the first terminal in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the first terminal in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disc, etc., which can store program codes. .

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Abstract

一种无线通信的方法和终端设备，该方法包括：第一终端根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突；所述多个候选终端包括参考候选终端和第一候选终端组，所述参考候选终端预留的资源为所述第一终端的目标接收资源，所述第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与所述参考候选终端预留的资源存在重叠；其中，所述目标信息包括以下中的至少一项：所述第一候选终端组中第一类候选终端的数量，其中，所述第一类候选终端以所述第一终端为目标接收终端；所述多个候选终端接收所述第一指示信息的状态；所述多个候选终端的信号质量；所述多个候选终端待发送数据的优先级。

Description

无线通信的方法和终端设备 技术领域
本申请实施例涉及通信领域，具体涉及一种无线通信的方法和终端设备。
背景技术
在新空口车辆到其他设备(New Radio Vehicle to Everything，NR-V2X)系统中，定义了两种传输模式：第一模式和第二模式。第一模式：终端的传输资源是由基站分配的，终端根据基站分配的资源在侧行链路上进行数据的发送。第二模式：终端在资源池中选取一个资源进行数据的传输。
在相关技术中，提出了一种资源选取增强方案，一个终端(例如，终端A)将检测到的另一终端(例如终端B)已经使用的资源上发生的资源冲突或该终端B即将使用的资源上可能发生的资源冲突指示给该终端B，从而终端B可以进行相应的重传或资源重选。但是如果终端A确定有多个终端预留的资源存在重叠，此情况下，对于终端A而言，如何确定发送资源冲突指示的目标终端是一项亟需解决的问题。
发明内容
本申请实施例提供一种无线通信的方法和终端设备，终端设备可以在发生资源冲突的多个终端中确定资源冲突指示的目标接收终端，进一步向该目标接收终端发送资源冲突指示，有利于降低资源冲突的概率，提升系统性能。
第一方面，提供了一种无线通信的方法，包括：第一终端根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突；
所述多个候选终端包括参考候选终端和第一候选终端组，所述参考候选终端预留的资源为所述第一终端的目标接收资源，所述第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与所述参考候选终端预留的资源存在重叠；
其中，所述目标信息包括以下中的至少一项：
所述第一候选终端组中第一类候选终端的数量，其中，所述第一类候选终端以所述第一终端为目标接收终端；
所述多个候选终端接收所述第一指示信息的状态；
所述多个候选终端的信号质量；
所述多个候选终端待发送数据的优先级。
第二方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任一可能的实现方式中的方法的单元。
第三方面，提供了一种终端设备，该终端设备包括：包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或其各实现方式中的方法。
第四方面，提供了一种芯片，用于实现上述第一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面或其各实现方式中的方法。
第五方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面或其各实现方式中的方法。
第六方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面或其各实现方式中的方法。
第七方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面或其各实现方式中的方法。
基于上述技术方案，在多个候选终端预留的资源存在冲突的情况下，第一终端可以根据目标信息，确定资源冲突指示的目标接收终端，进一步向该目标接收终端发送资源冲突指示，有利于降低资源冲突的概率，提升系统性能。并且根据候选终端的信号质量确定资源冲突指示的目标接收终端，有利于降低隐藏节点问题，根据候选终端待发送数据的优先级确定资源冲突指示的目标接收终端，有利于保证高优先级的待发送数据的可靠传输。
附图说明
图1是本申请提供的一种网络覆盖范围内侧行通信的示意性图。
图2是本申请提供的一种部分网络覆盖侧行通信的示意性图。
图3是本申请提供的一种网络覆盖外侧行通信的示意性图。
图4是本申请提供的一种单播侧行通信的示意性图。
图5是本申请提供的一种组播侧行通信的示意性图。
图6是本申请提供的一种广播侧行通信的示意性图。
图7是本申请提供的一种PSCCH和PSSCH帧结构的示意性图。
图8是基于第二模式的一种侧行传输的示意性图。
图9是基于第二模式的另一种侧行传输的示意性图。
图10是本申请实施例提供的一种无线通信的方法的示意性交互图。
图11是根据本申请实施例的一种侧行传输的示意图。
图12是本申请实施例提供的一种终端设备的示意性框图。
图13是本申请另一实施例提供的一种通信设备的示意性框图。
图14是本申请实施例提供的一种芯片的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，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。针对本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新空口(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车辆到其他设备(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
可选地，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全 (transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
需要说明的是，在侧行通信中，根据进行通信的终端所处的网络覆盖情况，可以分为网络覆盖内侧行通信，如图1所示；部分网络覆盖侧行通信，如图2所示；及网络覆盖外侧行通信，如图3所示。
图1：在网络覆盖内侧行通信中，所有进行侧行通信的终端均处于同一基站的覆盖范围内，从而，上述终端均可以通过接收基站的配置信令，基于相同的侧行配置进行侧行通信。
图2：在部分网络覆盖侧行通信情况下，部分进行侧行通信的终端位于基站的覆盖范围内，这部分终端能够接收到基站的配置信令，而且根据基站的配置进行侧行通信。而位于网络覆盖范围外的终端，无法接收基站的配置信令，在这种情况下，网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的物理侧行广播信道(Physical Sidelink Broadcast Channel，PSBCH)中携带的信息确定侧行配置，进行侧行通信。
图3：对于网络覆盖外侧行通信，所有进行侧行通信的终端均位于网络覆盖范围外，所有终端均根据预配置(pre-configuration)信息确定侧行配置进行侧行通信。
需要说明的是，设备到设备通信是基于终端到终端(Device to Device，D2D)的一种侧行链路(Sidelink，SL)传输技术，与传统的蜂窝系统中通信数据通过基站接收或者发送的方式不同，因此具有更高的频谱效率以及更低的传输时延。车联网系统采用终端到终端直接通信的方式，在3GPP定义了两种传输模式，分别记为：第一模式和第二模式。本申请实施例可以应用于第一模式和/或第二 模式。
第一模式：终端的传输资源是由基站分配的，终端根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。如图1所示，终端位于网络覆盖范围内，网络为终端分配侧行传输使用的传输资源。
第二模式：终端在资源池中选取一个资源进行数据的传输。如图3所示，终端位于小区覆盖范围外，终端在预配置的资源池中自主选取传输资源进行侧行传输；或者，如图1所示，终端在网络配置的资源池中自主选取传输资源进行侧行传输。
第二模式资源选择按照以下步骤进行：
步骤1：终端将资源选择窗内所有的可用资源作为资源集合A。
如果终端在侦听窗内某些时隙发送数据，没有进行侦听，则这些时隙在选择窗内对应的时隙上的全部资源被排除掉。终端利用所用资源池配置中的“资源预留周期(resource reservation period)”域的取值集合确定选择窗内对应的时隙。
如果终端在侦听窗内侦听到物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)，测量该PSCCH的参考信号接收功率(Reference Signal Receiving Power，RSRP)或者该PSCCH调度的物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的RSRP，如果测量的RSRP大于侧行RSRP(SL-RSRP)阈值，并且根据该PSCCH中传输的侧行控制信息中的资源预留信息确定其预留的资源在资源选择窗内，则从资源集合A中排除对应资源。如果资源集合A中剩余资源不足资源集合A进行资源排除前全部资源的X％，则将SL-RSRP阈值抬升3dB，重新执行步骤1。可选地，X的取值可以为{20,35,50}，终端根据待发送数据的优先级从该集合{20,35,50}中确定参数X。同时，上述SL-RSRP阈值与终端侦听到的PSCCH中携带的优先级以及终端待发送数据的优先级有关。终端将资源集合A中经资源排除后的剩余资源作为候选资源集合。
步骤2：终端从候选资源集合中随机选择若干资源，作为该终端进行初次传输以及重传的发送资源。
在NR-V2X中，支持自动驾驶，因此对车辆之间数据交互提出了更高的要求，如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。
在长期演进车辆到其他设备(Long Term Evolution Vehicle to Everything，LTE-V2X)中，支持广播传输方式，在NR-V2X中，引入了单播和组播的传输方式。对于单播传输，其接收端终端只有一个终端，如图4所示，UE1、UE2之间进行单播传输；对于组播传输，其接收端是一个通信组内的所有终端，或者是在一定传输距离内的所有终端，如图5所示，UE1、UE2、UE3和UE4构成一个通信组，其中UE1发送数据，该组内的其他终端设备都是接收端终端；对于广播传输方式，其接收端是发送端终端周围的任意一个终端，如图6所示，UE1是发送端终端，其周围的其他终端，UE2-UE6都是接收端终端。
在侧行传输系统中引入了资源池，所谓资源池即传输资源的集合，无论是网络配置的传输资源还是终端自主选取的传输资源，都是资源池中的资源。可以通过预配置或网络配置的方式配置资源池，可以配置一个或多个资源池。资源池又分为发送资源池和接收资源池。发送资源池即该资源池中的传输资源用于发送侧行数据；接收资源池即终端在该资源池中的传输资源上接收侧行数据。
在NR-V2X中引入2阶侧行控制信息(Sidelink Control Information，SCI)，第一阶SCI承载在物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)中，用于指示物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的传输资源、预留资源信息、调制编码方案(Modulation and Coding Scheme，MCS)等级、优先级等信息，第二阶SCI在PSSCH的资源中发送，利用PSSCH的解调参考信号(Demodulation Reference Signal，DMRS)进行解调，用于指示源(Source)标识(Identity，ID)、目标(Destination)ID、混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)ID、新数据指示(New Data Indicator，NDI)等用于数据解调的信息。第二阶SCI从PSSCH的第一个DMRS符号开始映射，先频域再时域映射，如图7所示，PSCCH占据3个符号(符号1、符号2、符号3)，PSSCH的DMRS占据符号4、符号11，第二阶SCI从符号4开始映射，在符号4上和DMRS频分复用，第二阶SCI映射到符号4、符号5、符号6，第二阶SCI占据的资源大小取决于第二阶SCI的比特数。
在NR-V2X中，支持序列类型的物理侧行反馈信道(Physical Sidelink Feedback Channel，PSFCH)，称为PSFCH格式0，该类型PSFCH在频域上占用一个物理资源块(physical resource block，PRB)，在时域上占用一个正交频分复用(Orthogonal frequency-division multiplexing，OFDM)符号，采用的序列类型和PUCCH格式0相同。在一个资源池内，PSFCH资源以1，2或4个时隙为周期配置，存在PSFCH资源的时隙上，PSFCH资源位于时隙内最后一个可用于侧行发送的OFDM符号上。然而， 为了支持收发转换以及AGC调整，PSFCH符号之前存在两个OFDM符号分别用于收发转换和AGC调整。此外，在上述三个OFDM符号上不允许PSCCH和PSSCH发送。在一些场景中，PSFCH只用于承载HARQ反馈信息，一个PSFCH的容量为一个比特。
PSFCH的传输资源根据其对应的PSSCH的传输资源的时频位置确定的。
在NR-V2X中，支持以下两种PSFCH的资源确定方式，具体采用哪种确定PSFCH资源的方式是根据高层信令配置的。
方式1：根据PSSCH频域资源的第一个子信道确定PSFCH的传输资源；
方式2：根据PSSCH频域占据的所有子信道确定PSFCH的传输资源。
对于方式1的资源确定方式，由于PSFCH的传输资源只根据PSSCH占据的第一个子信道确定，因此，无论PSSCH占据多少子信道，其对应的PSFCH的反馈资源个数是固定的；对于方式2，PSFCH的传输资源个数根据PSSCH占据的子信道数确定，因此，PSSCH占据的子信道越多，其PSFCH的传输资源也越多。方式2更适用于需要更多侧行HARQ反馈资源的场景，例如，组播中的第二类侧行HARQ反馈方式。
根据传输PSSCH的时隙以及子信道可以确定其对应的PSFCH传输资源集合
Figure PCTCN2021122229-appb-000001
在该资源集合中的PSFCH传输资源的索引先按照RB从低到高的顺序，再按照CS对从低到高的顺序确定，进一步的，在该资源集合中，通过下面的公式确定PSFCH的传输资源：
Figure PCTCN2021122229-appb-000002
其中，P ID表示发送端ID信息，即SCI中携带的发送端UE的源ID，对于单播或NACK-only的组播侧行HARQ反馈方式，M ID＝0；对于ACK/NACK的组播侧行HARQ反馈方式，M ID表示高层配置的接收端UE的组内标识。
在NR-V2X中，PSFCH资源由侧行PSFCH配置信令(SL-PSFCH-Config-r16)配置，该SL-PSFCH-Config-r16包括的参数如下所示。其中，侧行PSFCH配置周期(sl-PSFCH-Period-r16)用于配置PSFCH资源的周期，侧行PSFCH资源块(Resource Block，RB)集(sl-PSFCH-RB-Set-r16)用于配置PSFCH资源所在OFDM符号上可用于PSFCH发送的PRB，侧行复用循环移位(Cyclic Shift，CS)对的数量(sl-NumMuxCS-Pair-r16)用于配置一个PRB内允许的PFSCH序列的循环移位个数，侧行PSFCH间隔时间(sl-MinTimeGapPSFCH-r16)用于配置PSFCH和与其关联的PSSCH的最小时间间隔，侧行PSFCH跳频ID(sl-PSFCH-HopID-r16)sl-PSFCH-HopID-r16用于配置PSFCH的跳频ID，该ID用于确定PSFCH的序列，侧行PSFCH候选资源类型(sl-PSFCH-CandidateResourceType-r16)用于配置PSFCH备选资源的确定方式。
Figure PCTCN2021122229-appb-000003
在上述第二模式的传输方式中，终端在资源池中随机选取传输资源，或者根据侦听结果选取传输资源，这种资源选取方式可以在一定程度上避免终端之间的干扰，但是还存在下面的问题：
隐藏节点(Hidden node)问题:如图8所示，终端B根据侦听选取资源，并利用该资源向终端A发送侧行数据，由于终端B和终端C相距较远，互相侦听不到对方的传输，因此，B和C可能选取相同的传输资源，则终端C发送的数据会对终端B发送的数据造成干扰，这就是隐藏节点问题。
半双工(Half-duplex)问题：当终端通过侦听选取传输资源时，在侦听窗口内，如果该终端在某个时隙上发送侧行数据，由于半双工的限制，该终端在该时隙上不能接收其他终端发送的数据，也没有侦听结果，因此，终端在进行资源排除时，会把选择窗内与该时隙对应的资源全部排除掉，以避免和其他终端的干扰。由于半双工的限制会导致该终端排除了很多不需要排除的资源。
暴露终端问题：下图9所示，发送终端B和发送终端C均可以监听到对方，但发送终端B的目标 接收终端A远离发送终端C，发送终端C的目标接收终端D远离发送终端B，这种情况下发送终端B和发送终端C即使使用相同的时频资源也不会影响各自目标接收终端的接收，但由于双方地理位置接近，侦听过程中检测到对方的信号接收功率可能会很高，从而双方会选择到正交的视频资源，最终可能导致资源利用效率的下降。
功耗问题：在上述侦听过程中，需要终端持续的进行资源侦听以判断哪些资源是可用的，而终端持续进行资源侦听需要消耗很大的能量，这对于车载终端不是问题，因为车载终端有供电设备，但是对于手持终端，能耗过大会导致终端很快就没电了，因此，如何降低终端的能耗也是资源选择过程中需要考虑的问题。
基于上述技术问题，提出了一种资源选取增强方案，通过一个终端(UE-A)为另一个终端(UE-B)发送参考资源集合，辅助另一终端进行资源选取，该参考资源集合可以由UE-A根据资源侦听结果、基站指示等获取可用资源集合，或根据检测到的SCI确定。该参考资源集合可以是适合于UE-B使用的资源集合，当UE-B选择用于向目标接收终端发送侧行数据的资源时，可以优先从该可用资源集合中选取资源，从而可以提升目标接收终端接收该侧行数据的可靠性；或者，该资源集合也可以是不适合UE-B使用的资源集合，UE-B在选取资源的时避免选取该资源集合中的资源，从而避免发生隐藏终端，半双工限制等问题。承担所述UE-A功能的终端称为资源协调终端。
另外一种资源选取增强方案是UE-A将检测到的UE-B已经使用的资源上发生的资源冲突或UE-B即将使用的资源上可能发生的资源冲突指示给UE-B，从而UE-B可以进行相应的重传或资源重选。但是如果UE-A确定多个终端预留的资源存在重叠，此情况下，UE-A如何确定发送资源冲突指示的目标终端是一项亟需解决的问题。
以下通过具体实施例详述本申请的技术方案。
图10为本申请实施例提供的无线通信的方法100的示意性交互图。如图10所示，该方法100可以包括如下至少部分内容：
S110，第一终端根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突。
在一些实施例中，所述第一指示信息也可以替换为资源冲突指示，资源碰撞指示，资源重叠指示，或者类似表述。
为便于区分和描述，将第一指示信息的目标接收终端记为第二终端。
进一步地，所述第一终端可以向第二终端发送所述第一指示信息。
可选地，接收到第一指示信息后，第二终端可以确定自己预留的资源和其他终端预留的资源存在重叠，此情况下，该第二终端可以进行资源重选，例如，在进行资源重选时避免选取发生资源冲突的资源，从而能够降低资源冲突的概率，提升系统性能。
在本申请实施例中，该多个候选终端预留的资源存在冲突，或者，该多个候选终端预留的资源存在重叠。
在一些实施例中，多个候选终端包括参考候选终端和第一候选终端组，其中，第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与参考候选终端预留的资源存在重叠。
在一些实施例中，参考候选终端为第一终端将要进行数据接收的目标发送终端，或者说，第一终端将要接收参考候选终端发送的侧行数据。
换句话说，参考候选终端预留的资源为所述第一终端的目标接收资源。第一终端将要接收参考候选终端在该目标接收资源上发送的侧行数据，例如传输块(Transport Block，TB)。
需要说明的是，在本申请实施例中，第一终端确定参考候选终端预留的资源为目标接收资源，但并不表示第一终端一定在该目标接收资源上进行数据接收，例如，第一终端在确定需要向参考候选终端发送资源冲突指示时，该参考候选终端可能需要进行资源重选，此情况下，该第一终端可以不在该参考候选终端预留的资源上进行数据接收。
应理解，所述第一候选终端组中的候选终端预留的资源和参考候选终端预留的资源存在重叠可以指：候选终端预留的资源和参考候选终端预留的资源至少部分相同。
例如，候选终端预留的资源和参考候选终端预留的资源完全相同。
又例如，候选终端预留的资源和参考候选终端预留的资源部分相同，比如，候选终端预留的资源包括参考候选终端预留的资源，或者，参考候选终端预留的资源包括候选终端预留的资源等。
在一些实施例中，所述第一候选终端组可以包括至少一个第一类候选终端和/或至少一个第二类候选终端。其中，第一类候选终端以第一终端为目标接收终端，即第一类候选终端是第一终端的目标发送终端。第二类候选终端不以第一终端为目标接收终端，即第二类候选终端不是第一终端的目标接 收终端，换言之，第二类候选终端是第一终端的非目标发送终端。
在一些实施例中，所述目标信息包括以下中的至少一项：
所述第一候选终端组中第一类候选终端的数量；
所述多个候选终端接收所述第一指示信息的状态；
所述多个候选终端的信号质量；
所述多个候选终端待发送数据的优先级。
在一些实施例中，根据候选终端接收第一指示信息的状态确定资源冲突指示的目标接收终端，例如优选向接收资源冲突指示的候选终端发送资源冲突指示，或者，避免向不接收资源冲突指示的候选终端发送资源冲突指示，有利于保证接收到资源冲突指示的候选终端能够进行资源重选，从而能够降低资源冲突的概率，提升系统性能。
在一些实施例中，候选终端的信号质量可以反映该候选终端进行数据发送对其他终端的干扰程度，因此，根据候选终端的信号质量确定资源冲突指示的目标接收终端，例如，优选向信号质量高的候选终端发送资源冲突指示，避免向信号质量低的候选终端发送资源冲突指示等，有利于降低侧行传输中的隐藏节点问题。
在一些实施例中，根据候选终端待发送数据的优先级确定资源冲突指示的目标接收终端，例如，优选向低优先级的待发送数据对应的候选终端发送资源冲突指示，或者，避免向高优先级的待发送数据对应的候选终端发送资源冲突指示，有利于保证高优先级数据的传输。
可选地，候选终端的信号质量可以包括以下中的至少一种：
参考信号接收功率(Reference Signal Receiving Power，RSRP)、参考信号接收质量(Reference Signal Receiving Quality，RSRQ)、信号干扰噪声比(Signal to Interference plus Noise Ratio，SINR)。
可选地，多个候选终端接收所述第一指示信息的状态可以包括候选终端是否接收该候选终端的目标接收终端发送的第一指示信息，或者，候选终端是否接收其他终端(不限于目标接收终端)发送的第一指示信息。
在一些实施例中，所述多个候选终端接收所述第一指示信息的状态包括但不限于以下中的至少一种：
候选终端不接收其他终端发送的第一指示信息；
候选终端接收其他终端发送的第一指示信息；
候选终端仅接收所述候选终端的目标接收终端发送的第一指示信息；
候选终端不接收所述候选终端的目标接收终端发送的第一指示信息。
应理解，在本申请实施例中，所述多个候选终端接收所述第一指示信息的状态也可以替换为：
所述多个候选终端是否支持接收资源冲突指示。
可替换地，所述多个候选终端接收所述第一指示信息的状态包括但不限于以下中的至少一种：
候选终端不支持接收其他终端发送的第一指示信息；
候选终端支持接收其他终端发送的第一指示信息；
候选终端仅支持接收所述候选终端的目标接收终端发送的第一指示信息；
候选终端不支持接收所述候选终端的目标接收终端发送的第一指示信息。
在本申请一些实施例中，所述方法100还包括：
所述第一终端根据第一信息，确定所述多个候选终端中的每个候选终端接收所述第一指示信息的状态，其中，所述第一信息包括以下中的至少一项：
侧行控制信息SCI，资源池的配置信息、预配置信息(或者预定义信息)。
在一些实施例中，资源池的配置信息可以包括以下中的至少一项：
资源池是否允许终端向非目标发送终端发送资源冲突指示；
资源池是否允许终端向其他终端发送资源冲突指示。
资源池是否允许终端向目标发送终端发送资源冲突指示。
在一些实施例中，预配置信息可以包括以下中的至少一项：
是否允许终端向非目标发送终端发送资源冲突指示；
是否允许终端向其他终端发送资源冲突指示；
是否允许终端向目标发送终端发送资源冲突指示。
在一些实施例中，第一终端可以根据候选终端发送的SCI中的特定比特域确定该候选终端接收资源冲突指示的状态。可选地，该SCI可以包括第二阶SCI。
可选地，候选终端可以通过SCI中的已有信息域(例如预留域，或者预留比特)或者，新增信息域指示该候选终端接收资源冲突指示的状态，本申请对于具体的承载方式不作限定。
在一些实施例中，第一终端通过SCI确定候选终端接收资源冲突指示的不同状态。
示例1：通过SCI中的2比特指示候选终端接收资源冲突指示的不同状态。
表1示出了该2比特的取值和候选终端接收资源冲突指示的不同状态的一种对应关系。
表1
取值 含义
00 不接收其它终端发送的资源冲突指示
01 只接收目标接收终端发送的资源冲突指示
10 接收其它终端发送的资源冲突指示
11 保留
应理解，表1中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
示例2：通过SCI中的1比特指示候选终端接收资源冲突指示的不同状态。
表2示出了该1比特的取值和候选终端接收资源冲突指示的不同状态的一种对应关系。
表2
取值 含义
0 不接收其它终端发送的资源冲突指示
1 接收其它终端发送的资源冲突指示
应理解，表2中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
在另一些实施例中，第一终端根据资源池的配置信息和SCI确定候选终端接收资源冲突指示的不同状态。
示例3：资源池允许终端向非目标发送终端发送资源冲突指示，候选终端可以通过SCI中的2比特指示候选终端接收资源冲突指示的不同状态。
表3示出了该2比特的取值和候选终端接收资源冲突指示的不同状态的一种对应关系。
表3
取值 含义
00 不接收其它终端发送的资源冲突指示
01 只接收目标接收终端发送的资源冲突指示
10 接收其它终端发送的资源冲突指示
11 保留
应理解，表3中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
示例4：资源池允许终端向非目标发送终端发送资源冲突指示，候选终端可以通过SCI中的1比特指示候选终端接收资源冲突指示的不同状态。
表4示出了该1比特的取值和候选终端接收资源冲突指示的不同状态的一种对应关系。
表4
取值 含义
0 不接收其它终端(包括目标接收终端和非目标接收终端)发送的资源冲突指示
1 接收其它终端(包括目标接收终端和非目标接收终端)发送的资源冲突指示
应理解，表4中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
示例5：资源池不允许终端向非目标发送终端发送资源冲突指示，候选终端可以通过SCI中的1比特指示候选终端接收资源冲突指示的不同状态。
表5示出了该1比特的取值和候选终端接收资源冲突指示的不同状态的一种对应关系。
表5
取值 含义
0 不接收其它终端发送的资源冲突指示
1 仅接收目标接收终端发送的资源冲突指示
应理解，表5中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
表6示出了该1比特的取值和候选终端接收资源冲突指示的不同状态的另一种对应关系。
表6
取值 含义
0 不接收其它终端发送的资源冲突指示
1 接收其他终端(仅包括目标接收终端)发送的资源冲突指示
应理解，表6中的比特位的取值和含义的对应关系仅为示例，比特位的取值和含义也可以具有其他对应关系，只要保证每种含义对应唯一的取值即可，本申请对此不作限定。
在一些实施例中，在第一终端的发送终端的数量为一个时，即只有一个终端将要给第一终端发送数据，此情况下，第一终端确定参考候选终端可以为该一个发送终端。
在一些实施例中，若第一终端的多个发送终端预留的资源存在重叠，第一终端可以在该多个发送终端中确定参考候选终端。其中，该多个发送终端均以第一终端为目标接收终端，该多个发送终端预留的资源存在重叠，可以指该多个发送终端预留的资源至少部分相同。即有多个终端将要给第一终端发送数据，并且该多个终端发送数据所使用的资源存在重叠。
例如图11所示，第一终端为UE-A，UE-B和UE-C将要向UE-A发送数据，UE-D和UE-E不向UE-A发送数据，则UE-B和UE-C为UE-A的目标发送终端，UE-D和UE-E不是UE-A的目标发送终端，即UE-D和UE-E非目标发送终端。其中，该UE-B和UE-C预留的资源存在重叠，因此可以在该UE-B和UE-C中确定参考候选终端。
在一些实施例中，所述第一终端根据第二信息，在该多个发送终端中确定所述参考候选终端，其中，所述第二信息包括以下中的至少一项：
所述多个发送终端接收所述第一指示信息的状态；
所述多个发送终端的信号质量；
所述多个发送终端待发送数据的优先级。
应理解，本申请实施例并不限定第一终端根据该多个发送终端接收第一指示信息的状态，该多个发送终端的信号质量，该多个发送终端待发送数据的优先级确定参考候选终端时的使用顺序。
例如，第一终端可以首先根据待发送数据的优先级进行选择，或者，也可以首先根据接收第一指示信息的状态进行选择，或者，也可以首先根据信号质量进行选择，或者，在根据其中的一个信息能够选出一个发送终端时，也可以不结合其他信息做进一步选择，本申请对于根据上述信息确定参考候选终端的使用规则不作限定。
在一些实施例中，所述参考候选终端满足以下条件的至少一个：
所述参考候选终端在所述多个发送终端中待发送数据的优先级最高；
所述参考候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
所述参考候选终端在所述多个发送终端中信号质量最高。
作为示例，第一终端可以根据如下第一准则确定参考候选终端：
将所述多个发送终端中待发送数据优先级最高的发送终端确定为参考候选终端；
如果存在多个发送终端待发送数据的优先级相同，进一步可以结合发送终端接收资源冲突指示的状态确定参考候选终端，例如确定不接收资源冲突指示的发送终端为参考候选终端。
可选地，如果满足上述两个条件的发送终端有多个，进一步可以结合发送终端的信号质量确定参考候选终端，例如确定信号质量最高的发送终端为参考候选终端。
作为示例，第一终端可以根据如下第二准则确定参考候选终端：
将所述多个发送终端中待发送数据优先级最高的发送终端确定为参考候选终端；
如果存在多个发送终端待发送数据的优先级相同，进一步可以结合发送终端的信号质量确定参考候选终端，例如确定信号质量最高的发送终端为参考候选终端。
作为示例，第一终端可以根据如下第三准则确定参考候选终端：
确定不接收资源冲突指示的发送终端为参考候选终端；
如果存在多个发送终端均不接收资源冲突指示，进一步结合该多个发送终端待发送数据的优先级确定参考候选终端，例如将该多个发送终端中待发送数据优先级最高的发送终端确定为参考候选终端；
可选地，如果满足上述两个条件的发送终端有多个，进一步可以结合发送终端的信号质量确定参考候选终端，例如确定信号质量最高的发送终端为参考候选终端。
在本申请一些实施例中，所述目标信息包括第一目标信息，所述S110包括：
根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，其中，所述第一目标信息包括以下中的至少一项：
所述参考候选终端接收所述第一指示信息的状态；
所述第一候选终端组中的候选终端接收所述第一指示信息的状态；
所述第一候选终端组中的候选终端的信号质量；
所述参考候选终端待发送数据的优先级；
所述第一候选终端组中的候选终端待发送数据的优先级。
例如，若第一候选终端组中的候选终端待发送数据的优先级高于参考候选终端待发送数据的优先级，可以确定参考候选终端为资源冲突指示的目标接收终端，有利于保证高优先级数据的传输。
又例如，若第一候选终端组中的候选终端待发送数据的信号质量低于一定阈值，或者，第一候选终端组中的候选终端待发送数据的信号质量低于参考候选终端的信号质量，即参考候选终端带来的信号干扰高于第一候选终端组中的候选终端所带来的信号干扰，因此，可以确定参考候选终端为资源冲突指示的目标接收终端，有利于避免侧行传输中的隐藏节点问题。
再例如，如果参考候选终端接收资源冲突指示，第一候选终端组中的候选终端不接收资源冲突指示，确定参考候选终端为资源冲突指示的目标接收终端，有利于保证接收到资源冲突指示的终端进行资源重选，降低资源冲突的概率，提升系统性能。
以下结合具体实施例，说明资源冲突指示的目标接收终端的确定方式。
实施例一：
在一些实施例中，若参考候选终端不接收目标接收终端所发送的第一指示信息，并且第一候选终端组中存在至少一个候选终端接收其他终端发送的第一指示信息，在所述至少一个候选终端中确定所述第一指示信息的目标接收终端。
换言之，参考候选终端不支持接收第一终端发送的资源冲突指示，第一候选终端组中存在至少一个候选终端支持接收资源冲突指示，此情况下，可以在该至少一个候选终端中确定资源冲突指示的目标接收终端，从而，可以支持接收资源冲突指示的候选终端可以进行资源重选，有利于降低资源冲突的概率，提升系统性能，同时还可以避免侧行传输中的隐藏节点问题。
在一些实施例中，该第一终端可以根据该至少一个候选终端的信号质量、至少一个候选终端的待发送数据的优先级和参考候选终端的待发送数据的优先级中的至少一项，确定第一指示信息的目标接收终端。
例如，确定该至少一个候选终端中信号质量最低，或者信号质量低于一定阈值的候选终端为资源冲突指示的目标接收终端。
又例如，确定该至少一个候选终端中待发送数据的优先级最低的候选终端为资源冲突指示的目标接收终端，或者确定该至少一个候选终端中待发送数据的优先级低于一定优先级门限的候选终端为资源冲突指示的目标接收终端。
再例如，确定该至少一个候选终端中待发送数据的优先级低于参考候选终端的待发送数据的优先级的候选终端为资源冲突指示的目标接收终端。
在一些实施例中，所述在所述至少一个候选终端中确定所述第一指示信息的目标接收终端，包括：
确定所述至少一个候选终端中满足第一条件的候选终端为所述第一指示信息的目标接收终端，其中，所述第一条件包括但不限于以下条件至少之一：
所述第一终端测量的候选终端的信号质量不小于第一门限；
若资源池激活了资源抢占(pre-emption)，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，并且所述参考候选终端待发送数据的优先级高于第一优先级门限；
所述候选终端接收非目标接收终端或者其他终端发送的第一指示信息。
所述第一终端测量的候选终端的信号质量不小于第一门限可以认为该候选终端的数据传输带来的干扰较大，在此类候选终端中确定资源冲突指示的目标接收终端有利于避免侧行传输的隐藏节点问题。
参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，和/或，所述参考候选终端待发送数据的优先级高于第一优先级门限，表示此类终端待发送数据的优先级较低，或者，参考候选终端待发送数据的优先级较高，在此类候选终端中确定资源冲突指示的目标接收终端，有利于保证高优先级的待发送数据优先使用冲突的资源进行传输。
在一些实施例中，所述第一门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过无线资源控制(Radio Resource Control，RRC)信令配置该第一门限。
在一些实施例中，所述第一优先级门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第一优先级门限。
进一步地，在一些实施例中，所述方法100还包括：
若满足所述第一条件的候选终端的数量为多个，并且所述第一终端不能在一个时隙内向所有满足所述第一条件的候选终端发送所述第一指示信息，此情况下，第一终端根据满足所述第一条件的多个候选终端的信号质量和/或该多个候选终端待发送数据的优先级，确定所述第一指示信息的目标接收终端。
例如，所述第一终端将满足所述第一条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
又例如，所述第一终端将满足所述第一条件的多个候选终端中优先级最高的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
再例如，所述第一终端将满足所述第一条件的多个候选终端中优先级最高的候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
实施例二：
在一些实施例中，若所述参考候选终端接收目标接收终端所发送的第一指示信息(或者，参考候选终端支持接收第一终端发送的资源冲突指示)，并且所述第一候选终端组中存在至少一个候选终端满足第二条件，确定所述参考候选终端为所述第一指示信息的目标接收终端。
可选地，满足第二条件的候选终端可以认为是信号干扰较大的一类终端，或者，也可以认为是待发送数据的优先级较高的一类终端，或者，待发送数据的优先级高于参考候选终端的待发送数据的优先级的一类终端。
可选地，在该实施例二中，参考候选终端的待发送数据的优先级较低。
在一些实施例中，所述第二条件包括但不限于以下至少之一：
所述第一终端测量的候选终端的信号质量不小于第二门限；
所述候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级低于第二优先级门限。
作为一个具体示例，第二条件可以包括如下条件：
所述第一终端测量的候选终端的信号质量不小于第二门限；
所述候选终端不接收非目标接收终端或其他终端发送的第一指示信息。
作为另一具体示例，第二条件可以包括如下条件：
所述第一终端测量的候选终端的信号质量不小于第二门限；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级低于第二优先级门限。
在一些实施例中，所述第二门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第二门限。
在一些实施例中，所述第二优先级门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第二优先级门限。
实施例三：
在一些实施例中，若参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在满足第三条件的至少一个候选终端，以及存在满足第四条件的至少一个候选终端，确定满足所述第四条件的候选终端为所述第一指示信息的目标接收终端。
在该实施例三中，满足第三条件的候选终端可以认为是信号干扰较低的一类终端。
在该实施例三中，满足第四条件的候选终端可以认为是信号干扰较大的一类终端，或者，不支持接收资源冲突指示的一类终端，或者，待发送数据优先级较低的一类终端，例如，待发送数据优先级低于参考候选终端待发送数据的优先级。
此情况下，在满足第四条件的候选终端中确定资源冲突指示的目标接收终端，这样此类终端可以根据该资源冲突指示进行资源重选，有利于避免侧行传输的隐藏节点问题，或者有利于保证优先级高 的数据的可靠传输。
在一些实施例中，所述第三条件包括但不限于：
所述第一终端测量的候选终端的信号质量不大于第三门限；
在一些实施例中，所述第四条件包括但不限于以下至少之一：
所述第一终端测量的候选终端的信号质量不小于第四门限；
候选终端接收非目标接收终端或其他终端发送的第一指示信息；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级高于第三优先级门限。
作为一个示例，所述第四条件包括如下条件：
所述第一终端测量的候选终端的信号质量不小于第四门限；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级高于第三优先级门限。
作为另一个示例，所述第四条件包括如下条件：
所述第一终端测量的候选终端的信号质量不小于第四门限；
候选终端接收非目标接收终端或其他终端发送的第一指示信息。
在一些实施例中，所述第三门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第三门限。
在一些实施例中，所述第四门限是预配置的(或者，预定义的)，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第四门限。
在一些实施例中，所述第三优先级门限(或者，预定义的)是预配置的，或者是网络设备配置的。例如，网络设备通过RRC信令配置该第三优先级门限。
进一步地，在一些实施例中，所述方法100还包括：
若满足所述第四条件的候选终端的数量为多个，并且所述第一终端不能在一个时隙内向所有满足所述第四条件的候选终端发送所述第一指示信息，所述第一终端根据满足所述第四条件的多个候选终端的信号质量和/或该多个候选终端待发送数据的优先级，确定所述第一指示信息的目标接收终端。
例如，所述第一终端将满足所述第四条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
又例如，所述第一终端将满足所述第四条件的多个候选终端中优先级最高的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
再例如，所述第一终端将满足所述第四条件的多个候选终端中优先级最高的候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
综上所述，在多个候选终端预留的资源存在冲突的情况下，第一终端可以根据该多个候选终端的信号质量，待发送数据的优先级，接收资源冲突指示的状态等信息，确定资源冲突指示的目标接收终端，进一步向该目标接收终端发送资源冲突指示，有利于降低资源冲突的概率，提升系统性能。并且根据候选终端的信号质量确定资源冲突指示的目标接收终端，有利于降低隐藏节点问题，根据候选终端待发送数据的优先级确定资源冲突指示的目标接收终端，有利于保证高优先级的待发送数据的可靠传输。
图12示出了根据本申请实施例的终端设备400的示意性框图。如图12所示，该终端设备400包括：
处理单元410，用于根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突；
所述多个候选终端包括参考候选终端和第一候选终端组，所述参考候选终端预留的资源为所述终端设备的目标接收资源，所述第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与所述参考候选终端预留的资源存在重叠；
其中，所述目标信息包括以下中的至少一项：
所述第一候选终端组中第一类候选终端的数量，其中，所述第一类候选终端以所述终端设备为目标接收终端；
所述多个候选终端接收所述第一指示信息的状态；
所述多个候选终端的信号质量；
所述多个候选终端待发送数据的优先级。
在本申请一些实施例中，所述多个候选终端接收所述第一指示信息的状态包括以下中的至少一种：
候选终端不接收其他终端发送的第一指示信息；
候选终端接收其他终端发送的第一指示信息；
候选终端仅接收所述候选终端的目标接收终端发送的第一指示信息；
候选终端不接收所述候选终端的目标接收终端发送的第一指示信息。
在本申请一些实施例中，所述处理单元410还用于：
根据第一信息，确定所述多个候选终端中的每个候选终端接收所述第一指示信息的状态，其中，所述第一信息包括以下中的至少一项：
侧行控制信息SCI，资源池的配置信息、预配置信息。
在本申请一些实施例中，所述目标信息包括第一目标信息，所述处理单元410具体用于：
根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，其中，所述第一目标信息包括以下中的至少一项：
所述参考候选终端接收所述第一指示信息的状态；
所述第一候选终端组中的候选终端接收所述第一指示信息的状态；
所述第一候选终端组中的候选终端的信号质量；
所述参考候选终端待发送数据的优先级；
所述第一候选终端组中的候选终端待发送数据的优先级。
在本申请一些实施例中，所述处理单元410还用于：
若所述参考候选终端不接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端接收其他终端发送的第一指示信息，在所述至少一个候选终端中确定所述第一指示信息的目标接收终端。
在本申请一些实施例中，所述处理单元410还用于：
确定所述至少一个候选终端中满足第一条件的候选终端为所述第一指示信息的目标接收终端，其中，所述第一条件包括以下条件至少之一：
所述终端设备测量的候选终端的信号质量不小于第一门限；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，并且所述参考候选终端待发送数据的优先级高于第一优先级门限；
所述候选终端接收非目标接收终端或者其他终端发送的第一指示信息。
在本申请一些实施例中，所述处理单元410还用于：
若满足所述第一条件的候选终端的数量为多个，并且所述终端设备不能在一个时隙内向所有满足所述第一条件的候选终端发送所述第一指示信息，根据满足所述第一条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
在本申请一些实施例中，所述处理单元410还用于：
将满足所述第一条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述终端设备在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
在本申请一些实施例中，所述第一门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述第一优先级门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述处理单元410还用于：
若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端满足第二条件，确定所述参考候选终端为所述第一指示信息的目标接收终端；
其中，所述第二条件包括以下至少之一：
所述终端设备测量的候选终端的信号质量不小于第二门限；
所述候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级低于第二优先级门限。
在本申请一些实施例中，所述第二门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述第二优先级门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述处理单元410还用于：
若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在满足第三条件的至少一个候选终端，以及存在满足第四条件的至少一个候选终端，确定满足所述第四条件的候选终端为所述第一指示信息的目标接收终端；
其中，所述第三条件包括所述终端设备测量的候选终端的信号质量不大于第三门限；
所述第四条件包括以下至少之一：
所述终端设备测量的候选终端的信号质量不小于第四门限；
候选终端接收非目标接收终端或其他终端发送的第一指示信息；
若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级高于第三优先级门限。
在本申请一些实施例中，所述第三门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述第四门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述第三优先级门限是预配置的，或者是网络设备配置的。
在本申请一些实施例中，所述处理单元410还用于：
若满足所述第四条件的候选终端的数量为多个，并且所述终端设备不能在一个时隙内向所有满足所述第四条件的候选终端发送所述第一指示信息，根据满足所述第四条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
在本申请一些实施例中，所述处理单元410还用于：
将满足所述第四条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述终端设备在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
在本申请一些实施例中，所述处理单元410还用于：
根据第二信息，在多个发送终端中确定所述参考候选终端，所述多个发送终端均以所述终端设备为目标接收终端，并且所述多个发送终端预留的资源存在重叠，其中，所述第二信息包括以下中的至少一项：
所述多个发送终端接收所述第一指示信息的状态；
所述多个发送终端的信号质量；
所述多个发送终端待发送数据的优先级。
在本申请一些实施例中，所述参考候选终端满足以下条件的至少一个：
所述参考候选终端在所述多个发送终端中待发送数据的优先级最高；
所述参考候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
所述参考候选终端在所述多个发送终端中信号质量最高。
在本申请一些实施例中，所述第一候选终端组包括至少一个第一类候选终端和/或至少一个第二类候选终端，其中，所述第二类候选终端不以所述终端设备为目标接收终端。
在本申请一些实施例中，所述终端设备400还包括：
通信单元420，用于向所述第一指示信息的目标接收终端发送所述第一指示信息。
可选地，在一些实施例中，上述通信模块可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述确定模块可以是一个或多个处理器。
应理解，根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备，并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图10所示方法100中终端设备的相应流程，为了简洁，在此不再赘述。
图13是本申请实施例提供的一种通信设备600示意性结构图。图13所示的通信设备600包括处理器610，处理器610可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图13所示，通信设备600还可以包括存储器620。其中，处理器610可以从存储器 620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
可选地，如图13所示，通信设备600还可以包括收发器630，处理器610可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备600具体可为本申请实施例的网络设备，并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备600具体可为本申请实施例的第一终端，并且该通信设备600可以实现本申请实施例的各个方法中由第一终端实现的相应流程，为了简洁，在此不再赘述。
图14是本申请实施例的芯片的示意性结构图。图14所示的芯片700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图14所示，芯片700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的第一终端，并且该芯片可以实现本申请实施例的各个方法中由第一终端实现的相应流程，为了简洁，在此不再赘述。
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。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可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)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如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，DDR SDRAM)、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(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是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，DDR SDRAM)、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)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这 些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的第一终端，并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的第一终端，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的第一终端，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。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或者该技术方案的部分可以以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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (51)

  1. 一种无线通信的方法，其特征在于，包括：
    第一终端根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突；
    所述多个候选终端包括参考候选终端和第一候选终端组，所述参考候选终端预留的资源为所述第一终端的目标接收资源，所述第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与所述参考候选终端预留的资源存在重叠；
    其中，所述目标信息包括以下中的至少一项：
    所述第一候选终端组中第一类候选终端的数量，其中，所述第一类候选终端以所述第一终端为目标接收终端；
    所述多个候选终端接收所述第一指示信息的状态；
    所述多个候选终端的信号质量；
    所述多个候选终端待发送数据的优先级。
  2. 根据权利要求1所述的方法，其特征在于，所述多个候选终端接收所述第一指示信息的状态包括以下中的至少一种：
    候选终端不接收其他终端发送的第一指示信息；
    候选终端接收其他终端发送的第一指示信息；
    候选终端仅接收所述候选终端的目标接收终端发送的第一指示信息；
    候选终端不接收所述候选终端的目标接收终端发送的第一指示信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一终端根据第一信息，确定所述多个候选终端中的每个候选终端接收所述第一指示信息的状态，其中，所述第一信息包括以下中的至少一项：
    侧行控制信息SCI，资源池的配置信息、预配置信息。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，所述目标信息包括第一目标信息，所述第一终端根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，包括：
    根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，其中，所述第一目标信息包括以下中的至少一项：
    所述参考候选终端接收所述第一指示信息的状态；
    所述第一候选终端组中的候选终端接收所述第一指示信息的状态；
    所述第一候选终端组中的候选终端的信号质量；
    所述参考候选终端待发送数据的优先级；
    所述第一候选终端组中的候选终端待发送数据的优先级。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，包括：
    若所述参考候选终端不接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端接收其他终端发送的第一指示信息，在所述至少一个候选终端中确定所述第一指示信息的目标接收终端。
  6. 根据权利要求5所述的方法，其特征在于，所述在所述至少一个候选终端中确定所述第一指示信息的目标接收终端，包括：
    确定所述至少一个候选终端中满足第一条件的候选终端为所述第一指示信息的目标接收终端，其中，所述第一条件包括以下条件至少之一：
    所述第一终端测量的候选终端的信号质量不小于第一门限；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，并且所述参考候选终端待发送数据的优先级高于第一优先级门限；
    所述候选终端接收非目标接收终端或者其他终端发送的第一指示信息。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    若满足所述第一条件的候选终端的数量为多个，并且所述第一终端不能在一个时隙内向所有满足所述第一条件的候选终端发送所述第一指示信息，所述第一终端根据满足所述第一条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
  8. 根据权利要求7所述的方法，其特征在于，所述第一终端根据满足所述第一条件的多个候选 终端的信号质量，确定所述第一指示信息的目标接收终端，包括：
    所述第一终端将满足所述第一条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
  9. 根据权利要求6-8中任一项所述的方法，其特征在于，所述第一门限是预配置的，或者是网络设备配置的。
  10. 根据权利要求6-9中任一项所述的方法，其特征在于，所述第一优先级门限是预配置的，或者是网络设备配置的。
  11. 根据权利要求4所述的方法，其特征在于，所述根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，包括：
    若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端满足第二条件，确定所述参考候选终端为所述第一指示信息的目标接收终端；
    其中，所述第二条件包括以下至少之一：
    所述第一终端测量的候选终端的信号质量不小于第二门限；
    所述候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级低于第二优先级门限。
  12. 根据权利要求11所述的方法，其特征在于，所述第二门限是预配置的，或者是网络设备配置的。
  13. 根据权利要求11或12所述的方法，其特征在于，所述第二优先级门限是预配置的，或者是网络设备配置的。
  14. 根据权利要求4所述的方法，其特征在于，所述根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，包括：
    若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在满足第三条件的至少一个候选终端，以及存在满足第四条件的至少一个候选终端，确定满足所述第四条件的候选终端为所述第一指示信息的目标接收终端；
    其中，所述第三条件包括所述第一终端测量的候选终端的信号质量不大于第三门限；
    所述第四条件包括以下至少之一：
    所述第一终端测量的候选终端的信号质量不小于第四门限；
    候选终端接收非目标接收终端或其他终端发送的第一指示信息；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级高于第三优先级门限。
  15. 根据权利要求14所述的方法，其特征在于，所述第三门限是预配置的，或者是网络设备配置的。
  16. 根据权利要求14或15所述的方法，其特征在于，所述第四门限是预配置的，或者是网络设备配置的。
  17. 根据权利要求14-16中任一项所述的方法，其特征在于，所述第三优先级门限是预配置的，或者是网络设备配置的。
  18. 根据权利要求14-17中任一项所述的方法，其特征在于，所述方法还包括：
    若满足所述第四条件的候选终端的数量为多个，并且所述第一终端不能在一个时隙内向所有满足所述第四条件的候选终端发送所述第一指示信息，所述第一终端根据满足所述第四条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
  19. 根据权利要求18所述的方法，其特征在于，所述第一终端根据满足所述第四条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端，包括：
    所述第一终端将满足所述第四条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述第一终端在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
  20. 根据权利要求1-19中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端根据第二信息，在多个发送终端中确定所述参考候选终端，所述多个发送终端均以所述第一终端为目标接收终端，并且所述多个发送终端预留的资源存在重叠，其中，所述第二信息包括以下中的至少一项：
    所述多个发送终端接收所述第一指示信息的状态；
    所述多个发送终端的信号质量；
    所述多个发送终端待发送数据的优先级。
  21. 根据权利要求20所述的方法，其特征在于，所述参考候选终端满足以下条件的至少一个：
    所述参考候选终端在所述多个发送终端中待发送数据的优先级最高；
    所述参考候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
    所述参考候选终端在所述多个发送终端中信号质量最高。
  22. 根据权利要求1-21中任一项所述的方法，其特征在于，所述第一候选终端组包括至少一个第一类候选终端和/或至少一个第二类候选终端，其中，所述第二类候选终端不以所述第一终端为目标接收终端。
  23. 根据权利要求1-22中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端向所述第一指示信息的目标接收终端发送所述第一指示信息。
  24. 一种终端设备，其特征在于，包括：
    处理单元，用于根据目标信息，在多个候选终端中确定第一指示信息的目标接收终端，所述第一指示信息用于指示发生资源冲突；
    所述多个候选终端包括参考候选终端和第一候选终端组，所述参考候选终端预留的资源为所述终端设备的目标接收资源，所述第一候选终端组包括至少一个候选终端，所述第一候选终端组中的候选终端预留的资源与所述参考候选终端预留的资源存在重叠；
    其中，所述目标信息包括以下中的至少一项：
    所述第一候选终端组中第一类候选终端的数量，其中，所述第一类候选终端以所述终端设备为目标接收终端；
    所述多个候选终端接收所述第一指示信息的状态；
    所述多个候选终端的信号质量；
    所述多个候选终端待发送数据的优先级。
  25. 根据权利要求24所述的终端设备，其特征在于，所述多个候选终端接收所述第一指示信息的状态包括以下中的至少一种：
    候选终端不接收其他终端发送的第一指示信息；
    候选终端接收其他终端发送的第一指示信息；
    候选终端仅接收所述候选终端的目标接收终端发送的第一指示信息；
    候选终端不接收所述候选终端的目标接收终端发送的第一指示信息。
  26. 根据权利要求24或25所述的终端设备，其特征在于，所述处理单元还用于：
    根据第一信息，确定所述多个候选终端中的每个候选终端接收所述第一指示信息的状态，其中，所述第一信息包括以下中的至少一项：
    侧行控制信息SCI，资源池的配置信息、预配置信息。
  27. 根据权利要求24-26中任一项所述的终端设备，其特征在于，所述目标信息包括第一目标信息，所述处理单元具体用于：
    根据所述第一目标信息，在所述参考候选终端和所述第一候选终端组中，确定所述第一指示信息的目标接收终端，其中，所述第一目标信息包括以下中的至少一项：
    所述参考候选终端接收所述第一指示信息的状态；
    所述第一候选终端组中的候选终端接收所述第一指示信息的状态；
    所述第一候选终端组中的候选终端的信号质量；
    所述参考候选终端待发送数据的优先级；
    所述第一候选终端组中的候选终端待发送数据的优先级。
  28. 根据权利要求27所述的终端设备，其特征在于，所述处理单元还用于：
    若所述参考候选终端不接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端接收其他终端发送的第一指示信息，在所述至少一个候选终端中确定所述第一指示信息的目标接收终端。
  29. 根据权利要求28所述的终端设备，其特征在于，所述处理单元还用于：
    确定所述至少一个候选终端中满足第一条件的候选终端为所述第一指示信息的目标接收终端，其 中，所述第一条件包括以下条件至少之一：
    所述终端设备测量的候选终端的信号质量不小于第一门限；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，并且所述参考候选终端待发送数据的优先级高于第一优先级门限；
    所述候选终端接收非目标接收终端或者其他终端发送的第一指示信息。
  30. 根据权利要求29所述的终端设备，其特征在于，所述处理单元还用于：
    若满足所述第一条件的候选终端的数量为多个，并且所述终端设备不能在一个时隙内向所有满足所述第一条件的候选终端发送所述第一指示信息，根据满足所述第一条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
  31. 根据权利要求30所述的终端设备，其特征在于，所述处理单元还用于：
    将满足所述第一条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述终端设备在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
  32. 根据权利要求29-31中任一项所述的终端设备，其特征在于，所述第一门限是预配置的，或者是网络设备配置的。
  33. 根据权利要求29-32中任一项所述的终端设备，其特征在于，所述第一优先级门限是预配置的，或者是网络设备配置的。
  34. 根据权利要求27所述的终端设备，其特征在于，所述处理单元还用于：
    若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在至少一个候选终端满足第二条件，确定所述参考候选终端为所述第一指示信息的目标接收终端；
    其中，所述第二条件包括以下至少之一：
    所述终端设备测量的候选终端的信号质量不小于第二门限；
    所述候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级低于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级低于第二优先级门限。
  35. 根据权利要求34所述的终端设备，其特征在于，所述第二门限是预配置的，或者是网络设备配置的。
  36. 根据权利要求34或35所述的终端设备，其特征在于，所述第二优先级门限是预配置的，或者是网络设备配置的。
  37. 根据权利要求27所述的终端设备，其特征在于，所述处理单元还用于：
    若所述参考候选终端接收目标接收终端所发送的第一指示信息，并且所述第一候选终端组中存在满足第三条件的至少一个候选终端，以及存在满足第四条件的至少一个候选终端，确定满足所述第四条件的候选终端为所述第一指示信息的目标接收终端；
    其中，所述第三条件包括所述终端设备测量的候选终端的信号质量不大于第三门限；
    所述第四条件包括以下至少之一：
    所述终端设备测量的候选终端的信号质量不小于第四门限；
    候选终端接收非目标接收终端或其他终端发送的第一指示信息；
    若资源池激活了资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权；
    若资源池未激活资源抢占，则所述参考候选终端待发送数据的优先级高于所述候选终端待发送数据的优先权，或者，所述参考候选终端待发送数据的优先级高于第三优先级门限。
  38. 根据权利要求37所述的终端设备，其特征在于，所述第三门限是预配置的，或者是网络设备配置的。
  39. 根据权利要求37或38所述的终端设备，其特征在于，所述第四门限是预配置的，或者是网络设备配置的。
  40. 根据权利要求37-39中任一项所述的终端设备，其特征在于，所述第三优先级门限是预配置的，或者是网络设备配置的。
  41. 根据权利要求37-40中任一项所述的终端设备，其特征在于，所述处理单元还用于：
    若满足所述第四条件的候选终端的数量为多个，并且所述终端设备不能在一个时隙内向所有满足所述第四条件的候选终端发送所述第一指示信息，根据满足所述第四条件的多个候选终端的信号质量，确定所述第一指示信息的目标接收终端。
  42. 根据权利要求41所述的终端设备，其特征在于，所述处理单元还用于：
    将满足所述第四条件的多个候选终端中信号质量最优的N个候选终端确定为所述第一指示信息的目标接收终端，其中，N为所述终端设备在发送所述第一指示信息的时隙内能够发送的所述第一指示信息的最大个数。
  43. 根据权利要求24-42中任一项所述的终端设备，其特征在于，所述处理单元还用于：
    根据第二信息，在多个发送终端中确定所述参考候选终端，所述多个发送终端均以所述终端设备为目标接收终端，并且所述多个发送终端预留的资源存在重叠，其中，所述第二信息包括以下中的至少一项：
    所述多个发送终端接收所述第一指示信息的状态；
    所述多个发送终端的信号质量；
    所述多个发送终端待发送数据的优先级。
  44. 根据权利要求43所述的终端设备，其特征在于，所述参考候选终端满足以下条件的至少一个：
    所述参考候选终端在所述多个发送终端中待发送数据的优先级最高；
    所述参考候选终端不接收非目标接收终端或其他终端发送的第一指示信息；
    所述参考候选终端在所述多个发送终端中信号质量最高。
  45. 根据权利要求24-44中任一项所述的终端设备，其特征在于，所述第一候选终端组包括至少一个第一类候选终端和/或至少一个第二类候选终端，其中，所述第二类候选终端不以所述终端设备为目标接收终端。
  46. 根据权利要求24-45中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    通信单元，用于向所述第一指示信息的目标接收终端发送所述第一指示信息。
  47. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至23中任一项所述的方法。
  48. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至23中任一项所述的方法。
  49. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至23中任一项所述的方法。
  50. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至23中任一项所述的方法。
  51. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至23中任一项所述的方法。
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