WO2023035185A1 - Wireless communication method and terminal device - Google Patents

Wireless communication method and terminal device Download PDF

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Publication number
WO2023035185A1
WO2023035185A1 PCT/CN2021/117453 CN2021117453W WO2023035185A1 WO 2023035185 A1 WO2023035185 A1 WO 2023035185A1 CN 2021117453 W CN2021117453 W CN 2021117453W WO 2023035185 A1 WO2023035185 A1 WO 2023035185A1
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WO
WIPO (PCT)
Prior art keywords
terminal
airspace
information
sidelink data
timer
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PCT/CN2021/117453
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French (fr)
Chinese (zh)
Inventor
赵振山
张世昌
林晖闵
Original Assignee
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.)
Filing date
Publication date
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/CN2021/117453 priority Critical patent/WO2023035185A1/en
Priority to CN202180099338.5A priority patent/CN117480735A/en
Publication of WO2023035185A1 publication Critical patent/WO2023035185A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity

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 present application provides a wireless communication method and a terminal device, which can determine whether a beam is invalid according to a measurement result or a feedback result of sidelink transmission.
  • a wireless communication method including: a first terminal determines whether a first airspace transmit filter is invalid according to first information, where the first information includes at least one of the following: the Whether the first terminal has received the sidelink data sent by the second terminal using the first airspace transmission filter; the measurement result of the sidelink data sent by the second terminal using the first airspace transmission filter by the first terminal; The first indication information sent by the bottom layer of a terminal to the high layer of the first terminal, where the first indication information is used to indicate that an instance of failure of the airspace transmission filter occurs.
  • a wireless communication method including: the second terminal sends sidelink data to the first terminal using a first airspace transmission filter; the second terminal sends sidelink data according to a feedback result of the sidelink data, or , the second terminal determines whether the first airspace transmit filter is invalid according to whether a response to the sidelink data is received.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a terminal device configured to execute the method in the foregoing second aspect or its various implementation manners.
  • the terminal device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including 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 terminal device including 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 second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the receiving terminal can determine whether the airspace transmission filter is invalid according to the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter. Further, when the airspace transmit filter fails, the receiving terminal may instruct the transmitting end terminal to use a new airspace transmit filter for sidelink transmission, or perform an airspace transmit filter selection process to select a new optimal airspace transmit filter device, so as to ensure the reliability of sideline transmission.
  • FIG. 1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.
  • Fig. 2 is a schematic diagram of another communication system architecture applied in the embodiment of the present application.
  • Fig. 3 is a schematic diagram of uplink communication within a network coverage provided by the present application.
  • Fig. 4 is a schematic diagram of partial network coverage side communication provided by the present application.
  • Fig. 5 is a schematic diagram of outbound communication provided by the network coverage provided by the present application.
  • Fig. 6 is a schematic diagram of a side communication with a central control node provided by the present application.
  • Fig. 7 is a schematic diagram of unicast sidelink communication provided by the present application.
  • Fig. 8 is a schematic diagram of multicast sideline communication provided by the present application.
  • Fig. 9 is a schematic diagram of broadcast sideline communication provided by the present application.
  • Fig. 10 is a schematic diagram of a time slot structure in NR-V2X provided by the present application.
  • FIG. 11 is a schematic diagram of a time-frequency position of an SL CSI-RS provided by the present application.
  • Fig. 12 is a schematic diagram of a system provided by the present application without using analog beams and using analog beams.
  • Fig. 13 is a schematic interaction diagram of a wireless communication method provided by an embodiment of the present application.
  • Fig. 14 is a working principle diagram of a first timer and a first counter according to an embodiment of the present application.
  • Fig. 15 is a working principle diagram of a first timer and a first counter according to another embodiment of the present application.
  • Fig. 16 is a working principle diagram of the fourth timer, the fifth timer and the sixth timer according to an embodiment of the present application.
  • FIG. 17 is a schematic interaction diagram of another wireless communication method provided by an embodiment of the present application.
  • Fig. 18 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 19 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.
  • Fig. 20 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 21 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 22 is a schematic block diagram of a communication system provided according to 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 a WLAN, 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 assistant (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.
  • PLMN Public Land Mobile Network
  • 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.
  • predefined or “preconfigured” can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the application does not limit its specific implementation.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
  • Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable.
  • the transmission resources of the vehicle-mounted terminals (vehicle-mounted terminal 121 and vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminals transmit data on the sidelink according to the resources allocated by the base station 110 .
  • the base station 110 may allocate resources for a single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
  • Fig. 2 is a schematic diagram of another communication system to which the embodiment of the present application is applicable.
  • the vehicle-mounted terminals (vehicle-mounted terminal 131 and vehicle-mounted terminal 132 ) autonomously select transmission resources on sidelink resources for data transmission.
  • the vehicle-mounted terminal may select transmission resources randomly, or select transmission resources by listening.
  • side communication according to the network coverage of the communicating terminal, it can be divided into network coverage inner communication, as shown in Figure 3; part of the network coverage side communication, as shown in Figure 4 ; and network coverage outer line communication, as shown in FIG. 5 .
  • Figure 3 In inline communication within the network coverage, all terminals performing sideline communication are within the coverage of the base station. Therefore, the above-mentioned terminals can perform sideline communication based on the same sideline configuration by receiving configuration signaling from the base station .
  • FIG 4 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 5 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.
  • FIG. 6 For side communication with a central control node, multiple terminals form a communication group.
  • a central control node in the communication group which can also be called a cluster head terminal (Cluster Header, CH).
  • the central control node has the following One of the functions: responsible for the establishment of communication groups; joining and leaving of group members; performing resource coordination, allocating side transmission resources for other terminals, receiving side communication feedback information from other terminals; performing resource coordination with other communication groups, etc.
  • 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.
  • the Internet of Vehicles system adopts the method of terminal-to-terminal direct communication, so it has higher spectral efficiency and lower transmission delay.
  • Two transmission modes are defined in 3GPP, which are respectively recorded as: the first mode (sidelink resource allocation mode 1) and the second mode (sidelink resource allocation mode 2).
  • 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. 3 , 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 of the cell, and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or, as shown in Figure 3, the terminal independently selects transmission resources from the resource pool configured by the network Make sideways transfers.
  • New Radio-Vehicle to Everything NR-V2X
  • NR-V2X New Radio-Vehicle to Everything
  • it supports automatic driving, so it puts forward higher requirements for data interaction between vehicles, such as higher throughput, lower Latency, higher reliability, larger coverage, more flexible resource allocation, etc.
  • unicast transmission there is only one terminal at the receiving end, as shown in Figure 7, 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 8, 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 The terminal is any terminal around the transmitting terminal. As shown in FIG. 9 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6 are all receiving terminals.
  • the time slot structure in NR-V2X is shown in Figure 10.
  • (a) in Figure 10 indicates that the time slot does not include the physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH) time slot structure; the diagram in Figure 10 ( b) shows the slot structure including PSFCH.
  • PSFCH Physical Sidelink Feedback Channel
  • the Physical Sidelink Control Channel starts from the second sidelink symbol of the time slot in the time domain and occupies 2 or 3 Orthogonal frequency division multiplexing (Orthogonal frequency- division multiplexing (OFDM) symbols can occupy ⁇ 10, 12 15, 20, 25 ⁇ physical resource blocks (physical resource blocks, PRBs) in the frequency domain.
  • Orthogonal frequency division multiplexing Orthogonal frequency division multiplexing (Orthogonal frequency- division multiplexing (OFDM) symbols can occupy ⁇ 10, 12 15, 20, 25 ⁇ physical resource blocks (physical resource blocks, PRBs) in the frequency domain.
  • OFDM Orthogonal frequency division multiplexing
  • the number of PRBs occupied by PSCCH must be less than or equal to the number of PRBs contained in a sub-channel in the resource pool , so as not to impose additional restrictions on PSSCH resource selection or allocation.
  • the PSSCH also starts from the second side row symbol of the time slot, the last time domain symbol in the time slot is a guard interval (Guard Period, GP) symbol, and the remaining symbols are mapped to the PSSCH.
  • the first side row symbol in this time slot is the repetition of the second side row symbol.
  • the receiving terminal uses the first side row symbol as an automatic gain control (AGC) symbol. Data is generally not used for data demodulation.
  • the PSSCH occupies M subchannels in the frequency domain, and each subchannel includes N consecutive PRBs. As shown in (a) in Figure 10.
  • the second-to-last and third-to-last symbols in the time slot are used for PSFCH channel transmission, and a time domain symbol before the PSFCH channel is used as a GP symbol, as shown in (b) in Figure 10 shown.
  • CSI-RS Channel State Information Reference Signal
  • SL CSI-RS is supported in NR-V2X, and SL CSI-RS is sent when the following three conditions are met:
  • the UE sends the corresponding PSSCH, that is to say, the UE cannot only send SL CSI-RS;
  • the high-level signaling activates the sideline CSI reporting
  • the corresponding bit in the second-order SCI sent by the UE triggers the sideline CSI reporting.
  • the maximum number of ports supported by SL CSI-RS is 2.
  • SL CSI-RS of different ports are multiplexed by code division on two adjacent resource elements (Resource Element, RE) of the same OFDM symbol.
  • the number of SL CSI-RS for each port in a PRB is 1, that is, the density is 1. Therefore, SL CSI-RS will only appear on one OFDM symbol at most in one PRB. The specific position of this OFDM symbol is determined by the transmitting terminal.
  • SL CSI-RS It cannot be located in the same OFDM symbol with PSCCH and second-order SCI.
  • the SL-CSI-RS cannot be sent in the same channel as the DMRS of the PSSCH. on OFDM symbols.
  • the position of the OFDM symbol where the SL CSI-RS is located is indicated by the sl-CSI-RS-FirstSymbol parameter in the PC5 radio resource control (Radio Resource Control, RRC).
  • the position of the first RE occupied by the SL CSI-RS in a PRB is indicated by the sl-CSI-RS-FreqAllocation parameter in PC5RRC. If the SL CSI-RS is a port, this parameter is a bitmap with a length of 12. Corresponding to 12 REs in one PRB, if the SL CSI-RS has two ports, this parameter is a bitmap with a length of 6. In this case, the SL CSI-RS occupies 2f(1) and 2f(1)+ 1 Two REs, where f(1) represents the index of a bit with a value of 1 in the above bitmap.
  • FIG. 11 shows a schematic diagram of the time-frequency position of SL CSI-RS.
  • the number of SL CSI-RS ports is 2
  • sl-CSI-RS-FirstSymbol is 8
  • HARQ Hybrid Automatic Repeat reQuest
  • HARQ-ACK Hybrid Automatic Repeat request Acknowledgment
  • the transmitting terminal determines whether retransmission is required according to the HARQ-ACK information of the receiving terminal. For example, if the sending terminal receives a negative acknowledgment (Negative Acknowledgment, NACK) or detects a discontinuous transmission (Discontinuous Transmission, DTX) state, it will retransmit, if it receives a positive acknowledgment (Acknowledgment, ACK), it does not need to be retransmitted Retransmission.
  • NACK negative acknowledgment
  • DTX discontinuous Transmission
  • blind retransmission means that the sending terminal does not need to retransmit autonomously according to the feedback from the receiving terminal. For example, when the sending terminal sends side data through broadcasting, it does not want the receiving terminal to perform side feedback at this time. Therefore, in order to improve transmission reliability, the sending terminal can retransmit autonomously, such as retransmitting 4 times or 8 times etc.
  • each transport block Transport Block, TB
  • the design goal of the NR system includes large-bandwidth communication in a high-frequency band (for example, a frequency band above 6 GHz).
  • a high-frequency band for example, a frequency band above 6 GHz.
  • the path loss in the transmission process will increase, thereby affecting the coverage capability of the high-frequency system.
  • an effective technical solution is based on a massive antenna array (Massive MIMO) to form a shaped beam with greater gain, overcome propagation loss, and ensure system coverage.
  • Mass MIMO massive antenna array
  • the millimeter-wave antenna array due to the shorter wavelength, smaller antenna element spacing and smaller aperture, allows more physical antenna elements to be integrated in a limited-sized two-dimensional antenna array.
  • Due to the limited size of the millimeter-wave antenna array from Considering factors such as hardware complexity, cost overhead, and power consumption, digital beamforming cannot be used, but analog beamforming is usually used, which can reduce the complexity of device implementation while enhancing network coverage.
  • a cell uses a wider beam (beam) to cover the entire cell. Therefore, at each moment, the terminal equipment within the coverage of the cell has the opportunity to obtain the transmission resources allocated by the system.
  • NR/5G multi-beam (Multi-beam) system covers the entire cell through different beams, that is, each beam covers a small range, and the effect of multiple beams covering the entire cell is achieved through time sweeping (sweeping) .
  • Fig. 12 shows a schematic diagram of a system without beamforming and with beamforming.
  • (a) in Figure 12 is a traditional LTE and NR system without beamforming, and
  • (b) in Figure 12 is an NR system using beamforming:
  • the LTE/NR network side uses a wide beam to cover the entire cell, and terminals 1-5 can receive network signals at any time.
  • the network side in (b) in Figure 12 uses narrower beams (such as beam 1-beam 4 in the figure), and uses different beams to cover different areas in the cell at different times, for example, at time 1 , the NR network side covers the area where terminal 1 is located through beam 1; at time 2, the NR network side covers the area where terminal 2 is located through beam 2; at time 3, the NR network side covers the area where terminal 3 and terminal 4 are located through beam 3 ; At time 4, the NR network side uses beam 4 to cover the area where terminal 5 is located.
  • narrower beams such as beam 1-beam 4 in the figure
  • Analog beamforming can be used not only for network-side devices, but also for terminals. At the same time, analog beamforming can not only be used for signal transmission (called transmit beam), but also can be used for signal reception (called receive beam).
  • Different beams can be identified by the different signals carried on them.
  • SS block Synchronization Signal block
  • CSI-RS Channel State Information Reference Signal
  • the physical downlink control channel Physical Downlink Control Channel, PDCCH
  • the physical downlink shared channel Physical Downlink Shared Channel, PDSCH
  • omnidirectional antennas or near-omnidirectional antennas are used to receive signals sent by different downlink transmission beams of the base station.
  • corresponding beam indication information (beam indication) is needed to assist the terminal device to determine the related information of the transmitting beam on the network side, or the corresponding receiving beam related information on the terminal side.
  • the beam indication information does not directly indicate the beam itself, but is indicated by quasi-co-located (QCL) ('QCL-TypeD' type) between signals.
  • QCL quasi-co-located
  • determining the statistical characteristics of receiving the corresponding channel/signal is also based on the QCL assumption.
  • the terminal device When the terminal device receives signals, in order to improve the receiving performance, it can use the characteristics of the transmission environment corresponding to the data transmission to improve the receiving algorithm. For example, the statistical properties of the channel can be used to optimize the design and parameters of the channel estimator. In the NR system, these characteristics corresponding to data transmission are represented by QCL status (QCL-Info).
  • QCL-Info QCL status
  • the network When the device side is transmitting the downlink control channel or data channel, it will indicate the corresponding QCL status information to the terminal device through the Transmission Configuration Indicator (TCI) state.
  • TRP Transmission Reception Point
  • TRP Transmission Reception Point
  • panel panel
  • beam beam
  • a TCI state can contain the following configurations:
  • TCI state identifier used to identify a TCI state
  • a QCL information contains the following information:
  • QCL type (type) configuration which can be one of QCL type A, QCL typeB, QCL typeC or QCL typeD;
  • QCL reference signal configuration including the cell identification (ID) where the reference signal is located, the bandwidth part (Band Width Part, BWP) identification (ID) and the identification of the reference signal (which can be a CSI-RS resource identification or a synchronization signal block (Synchronization Signal Block) , SSB) index).
  • the QCL type of at least one QCL information must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information must be QCL type D.
  • 'QCL-TypeA' ⁇ Doppler shift (Doppler shift), Doppler spread (Doppler spread), average delay (average delay), delay spread (delay spread) ⁇ ;
  • 'QCL-TypeB' ⁇ Doppler shift (Doppler shift), Doppler spread (Doppler spread) ⁇ ;
  • 'QCL-TypeC' ⁇ Doppler shift (Doppler shift), average delay (average delay) ⁇ ;
  • the network side can indicate the corresponding TCI state for the downlink signal or downlink channel.
  • the terminal can assume that the target downlink signal is consistent with the reference
  • the large-scale parameters of the SSB or reference CSI-RS resources are the same, and the large-scale parameters are determined by the QCL type configuration.
  • the terminal can adopt and receive the reference SSB or reference CSI-RS resource.
  • the receiving beam that is, the Spatial Rx parameter
  • the target downlink channel (or downlink signal) and its reference SSB or reference CSI-RS resource are sent by the same TRP or the same panel or the same beam at the network side. If the transmission TRP or transmission panel or transmission beam of two downlink signals or downlink channels are different, different TCI states are usually configured.
  • control resource set (Control Resource Set, CORESET) TCI status.
  • the available TCI state set is indicated by RRC signaling, and some of the TCI states are activated by MAC layer signaling, and finally activated by the TCI state indication field in the downlink control information (Downlink Control Information, DCI)
  • DCI Downlink Control Information
  • One or two TCI states are indicated in the TCI state for the PDSCH scheduled by the DCI.
  • the case of two TCI states is mainly for scenarios where multiple TRPs are similar.
  • the network device indicates N candidate TCI states through RRC signaling, activates K TCI states through MAC signaling, and finally indicates one or two active TCI states through the TCI state indication field in DCI. TCI status.
  • FIG. 13 is a schematic diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 13 , the method 200 includes at least part of the following:
  • the second terminal uses the first airspace transmit filter to transmit sidelink data
  • the first terminal determines whether the first airspace transmit filter is invalid according to the first information, where the first information includes at least one of the following:
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter
  • the first terminal is a receiving terminal
  • the second terminal is a transmitting terminal
  • a spatial domain transmission filter may also be referred to as a transmission beam (transmission beam), a spatial relation (Spatial relation) or a spatial configuration (spatial setting).
  • a spatial domain reception filter may also be called a reception beam, a spatial relation, or a spatial setting.
  • the spatial transmission filter and the spatial reception filter are collectively referred to as a spatial filter
  • the spatial transmission filter may also be referred to as a transmission end spatial filter
  • the spatial reception filter may also be referred to as a reception end spatial filter.
  • beam failure may also be referred to as failure of a spatial domain filter, and may specifically include failure of a spatial transmission filter and/or failure of a spatial reception filter.
  • the detection result of the side data may include, for example, whether the receiving terminal detects the side data sent by the sending terminal, or whether it receives the side data sent by the sending terminal, or whether it successfully detects The SCI or PSCCH corresponding to the sidelink data sent by the sender terminal. For example, when the receiving terminal successfully detects the SCI or PSCCH sent by the transmitting terminal, it can be considered that the receiving terminal has detected or received the sidelink data sent by the transmitting terminal; when the receiving terminal fails to detect the SCI sent by the transmitting terminal or PSCCH, it can be considered that the receiving terminal has not detected or received the sidelink data sent by the transmitting terminal.
  • the first terminal may determine the measurement result of the sidelink data according to the measurement result of the reference signal sent by the second terminal. For example, the first terminal may determine, according to the measurement result of the reference signal sent by the second terminal using the first spatial transmission filter, that the side line transmitted by the second terminal using the first spatial transmission filter The measurement results of the data. Specifically, the first terminal may measure the reference signal sent by the second terminal using the first spatial transmission filter, and determine the measurement result of the reference signal as the sidelink data transmitted by the second terminal using the first spatial transmission filter measurement results.
  • the reference signal sent by the second terminal is also called a sidelink reference signal.
  • the terminal device in the embodiment of the present application may transmit data in a beam manner. Therefore, the transmitting terminal needs to determine an optimal transmitting beam, and the receiving terminal needs to determine an optimal receiving beam.
  • the transmitting-end terminal and the receiving-end terminal may determine an optimal transmit beam, that is, an optimal spatial domain transmit filter, by transmitting a side-link reference signal.
  • the transmitting terminal sends multiple side reference signals to the receiving terminal, and the multiple side reference signals are used to select a target airspace transmission filter.
  • the sidelink reference signal can be, for example, CSI-RS, demodulation reference signal (Demodulation Reference Signal, DMRS), positioning reference signal (positioning reference signals, PRS), phase tracking reference signal (Phase Tracking Reference Signal, PT-RS) or side line synchronization signal (including side line main synchronization signal and/or side line secondary synchronization signal), etc.
  • the DMRS can be used for demodulating the physical side line control channel (Physical Sidelink Control Channel, PSCCH) DMRS, or a DMRS used to demodulate a Physical Sidelink Shared Channel (PSSCH), below, the sidelink reference signal is CSI-RS as an example for illustration, but the present application is not limited thereto.
  • the sending terminal terminal sending the CSI-RS may also be expressed as sending the CSI-RS resource by the sending terminal terminal, and the two are equivalent expressions. Therefore, the sending terminal terminal sending multiple sidelink reference signals to the receiving terminal may include:
  • the sending terminal sends multiple CSI-RS resources to the receiving terminal, and the multiple CSI-RS resources are used to determine a target airspace transmission filter, or in other words, an optimal airspace transmission filter.
  • the multiple CSI-RS resources are sent using different spatial domain transmission filters, or the multiple CSI-RS resources are not transmitted using the same spatial domain transmission filter.
  • the receiving terminal may use the same spatial domain receiving filter to receive the CSI-RS resource sent by the transmitting terminal.
  • the receiving terminal may measure the detected CSI-RS resource, and report or feed back CSI according to the measurement result, so that the transmitting terminal may determine the target airspace transmission filter according to the CSI reporting or feedback.
  • the receiving terminal may send a target CSI reporting amount to the transmitting terminal, and the target CSI reporting amount may include indication information of N CSI-RS resources and/or the N CSI-RS resources measurement results.
  • the indication information of the CSI-RS resource is used to determine the target CSI-RS resource.
  • the indication information of the CSI-RS resource is used to determine the resource index of the CSI-RS resource.
  • the indication information of the resource may be a CSI-RS resource indication (CSI-RS Resource Indicator, CRI ).
  • the indication information of the CSI-RS resource is used to determine the transmission resource information used by the first terminal to send the CSI-RS resource, for example, the time slot information corresponding to the sending terminal terminal sending the CSI-RS resource .
  • the measurement results of CSI-RS resources may include but not limited to at least one of the following:
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • SINR Signal to Interference plus Noise Ratio
  • the N CSI-RS resources are the N CSI-RS resources with the highest measurement results among the CSI-RS resources detected by the receiving terminal.
  • the first airspace transmit filter may be any one of the multiple airspace transmit filters supported by the second terminal, or may be The optimal airspace transmission filter determined by the target CSI reporting amount sent by the second terminal, or an available airspace transmission filter determined according to the target CSI reporting amount sent by the first terminal to the second terminal. Not limited.
  • the first terminal uses a first spatial domain receiving filter to receive the sidelink data, where the first spatial domain receiving filter is a spatial domain receiving filter associated with the first spatial domain transmitting filter.
  • the second terminal sends indication information to the first terminal, where the indication information includes a first TCI state, and the first terminal may determine that the airspace transmit filter used by the second terminal is the first airspace transmit filter according to the first TCI state, Or, the first terminal may determine the first spatial domain reception filter according to the first TCI state.
  • the first spatial domain transmit filter and the first spatial domain receive filter are referred to as a spatial domain filter pair.
  • the receiving terminal may determine whether the airspace transmission filter is invalid according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or, Whether the spatial domain receive filter corresponding to the spatial domain transmit filter (that is, the first spatial domain receive filter) is invalid, and/or determine the spatial domain formed by the spatial domain transmit filter and the spatial domain receive filter corresponding to the spatial domain transmit filter Whether the filter pair is invalid.
  • the receiving terminal can judge the failure of the transmitting beam according to the detection result and/or the measurement result of the sending terminal using the transmitting beam to transmit side-going data, and/or determine the failure of the receiving beam, and/or Or, the failure judgment of the beam pair.
  • the first terminal may determine whether the spatial domain transmit filter is invalid according to the first information, and/or determine whether the spatial domain receive filter is invalid, and/or determine whether the spatial domain filter pair is invalid.
  • the first terminal determines whether the airspace transmit filter is invalid according to the first information as an example for illustration, and the method in the embodiment of the present application is also applicable to determining whether the receiving filter is invalid, and is applicable to determining Whether the spatial filter pair is disabled.
  • the sidelink data can be any data exchanged between terminal devices, for example, PSSCH, PSCCH, direct link keep-alive request message (DIRECT LINK KEEPALIVE REQUEST message), direct Link keep-alive response message (DIRECT LINK KEEPALIVE RESPONSE message), PC5 signaling message, PC5 user plane data, etc.
  • PSSCH PSSCH
  • PSCCH PSCCH
  • direct link keep-alive request message DIRECT LINK KEEPALIVE REQUEST message
  • direct Link keep-alive response message DIRECT LINK KEEPALIVE RESPONSE message
  • PC5 signaling message PC5 user plane data, etc.
  • the receiving terminal may determine that the first airspace transmission filter is invalid when it does not receive the sidelink data sent by the transmitting terminal using the first airspace transmission filter.
  • the receiving terminal may determine that when receiving the sidelink data sent by the transmitting terminal using the first airspace transmission filter, but the measurement result of the sidelink data does not meet the preset condition The first airspace transmit filter is disabled.
  • the receiving terminal may determine that the first airspace transmission filter is invalid when receiving the first indication information reported by the bottom layer.
  • the S202 includes:
  • the first information and the first counter determine whether the first airspace transmit filter is invalid.
  • the first counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
  • the first airspace transmit filter does not meet the sidelink transmission requirements may include:
  • the receiving terminal does not receive the sidelink data sent by the transmitting terminal using the first airspace transmit filter, and/or
  • the receiving terminal receives the sidelink data sent by the transmitting terminal using the first airspace transmit filter, but the measurement result of the sidelink data does not meet a preset condition, for example, is smaller than a first threshold.
  • the fact that the first airspace transmit filter does not meet the sidelink transmission requirements can be understood as that the signal quality of the sidelink data sent by the transmitting end terminal using the first airspace transmit filter is low, which may cause poor reception by the receiving end terminal. If the sidelink data is received, or even if it is received, the demodulation performance of the signal will be affected due to the low signal quality. In short, using the first airspace transmit filter for sidelink transmission will affect the sidelink transmission performance.
  • the first terminal determines whether the first airspace transmit filter is invalid according to the first information and the first counter, including:
  • the first terminal counts the first counter according to the first information and the first timer
  • the count value of the first counter determine whether the first airspace transmit filter is invalid.
  • the duration of the first timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
  • the sender terminal periodically sends the sidelink data
  • the duration of the first timer can be determined according to the cycle of sending the sidelink data by the sender terminal, for example, the duration of the first timer is greater than or equal to the sending Period for the end-terminal to send sideline data.
  • the sending terminal sends the sidelink data when the seventh timer expires, and the duration of the first timer may be determined according to the duration of the seventh timer.
  • the duration of the seventh timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal. Therefore, in the case that the airspace transmission filter is not invalid, within the duration of the first timer, the receiving terminal can receive the side data sent by the transmitting terminal, or can receive the side line data whose measurement result satisfies the preset condition. row data. Therefore, the receiving terminal may determine whether the airspace transmission filter is invalid according to the receiving situation of the sidelink data and/or the measurement result of the sidelink data within the duration of the first timer.
  • the value of the first counter is set to The count value is incremented by one.
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires, but the sidelink data If the measurement result is less than the first threshold, add one to the count value of the first counter.
  • the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmission filter, or receives the data sent by the second terminal using the first airspace transmission filter.
  • sidelink data but the measurement result of the sidelink data is less than the first threshold, indicating that the energy of the signal sent by the second terminal using the first airspace transmit filter is very low.
  • the first airspace transmit filter is already difficult to The requirement for sidelink transmission is met. Therefore, the first counter may be increased by one, that is, the number of times the first airspace transmit filter fails to meet the requirement for sidelink transmission is increased by one.
  • the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter, or receives the sidelink data sent by the second terminal using the first airspace transmit filter, but The measurement result of the sidelink data is less than the first threshold, which means that the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires or times out, or receives The sidelink data sent by the second terminal using the first spatial transmission filter, but the measurement result of the sidelink data is smaller than the first threshold.
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires, and the sidelink data If the measurement result is greater than or equal to the first threshold, the count value of the first counter is set to zero, or the first counter is reset.
  • the first terminal Before the first timer expires, the first terminal receives the sidelink data sent by the second terminal, and the measurement result of the sidelink data is greater than or equal to the first threshold, indicating that the first terminal receives the sidelink data
  • the signal energy of the second terminal is relatively high, that is, the first airspace transmit filter can meet the side transmission requirements, therefore, the first counter can be cleared, or the first counter can be reset, that is, the first airspace transmit filter does not satisfy The number of side travel requests is cleared to zero.
  • the first threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the count value of the first counter is greater than or equal to a second threshold, it is determined that the first airspace transmit filter is invalid.
  • the second threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement.
  • the count value of the first counter is greater than or equal to the second threshold, it means that the number of times that the first airspace transmit filter does not meet the sidelink transmission requirement has reached the maximum number of times, in this case, it can be determined that the first airspace transmit filter is invalid .
  • the second threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the first terminal When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than a first threshold, the first terminal sends the first The timer is set to zero, or the first timer is reset.
  • the first terminal considers that receiving the sidelink data whose measurement result is greater than the first threshold is a valid transmission, and in the case of receiving a valid transmission, sets the first timer to zero, or Reset the first timer, and wait for the next effective transmission of the second terminal within the duration of the first timer.
  • the first terminal considers that it has not received the sidelink data sent by the second terminal using the first airspace transmit filter, or receives the data sent by the second terminal using the first airspace transmit filter. Side data, but the measurement result of the side data is less than the first threshold is an invalid transmission.
  • Embodiment 1-2
  • the first terminal When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, set the first timer to zero, or reset the first timing device.
  • the first terminal considers that receiving the side data is a valid transmission, and in the case of receiving the side data, it sets the first timer to zero, or resets the first timer. The timer waits for the next sidelink transmission of the second terminal within the duration of the first timer.
  • the first terminal considers that it has not received the sidelink data sent by the second terminal using the first airspace transmit filter, and it is an invalid transmission.
  • the receiving terminal receives the sidelink data sent by the transmitting terminal in time slot a, and the measurement result of the reference signal for the sidelink data is greater than the first threshold (for example, RSRP>Thd1),
  • the first threshold for example, RS
  • FIG. 15 when the receiving terminal receives sidelink data in time slot c, although the measurement result of the sidelink data is less than the first threshold, the receiving terminal will restart the first timer , and increment the first counter by 1.
  • the S202 includes:
  • the upper layer of the first terminal counts the second counter according to the first indication information reported by the lower layer of the first terminal;
  • the second counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
  • the meaning that the first airspace transmission filter does not meet the sidelink transmission requirement refers to the relevant description in Embodiment 1, and for the sake of brevity, details are not repeated here.
  • the bottom layer of the terminal device in the embodiment of the present application may refer to the physical layer (or layer 1), and the high layer may refer to a layer above the physical layer, such as a media access control (Media Access Control, MAC) layer (or layer 1). Called, layer 2) or radio resource control (Radio Resource Control, RRC) layer (or called, layer 3).
  • Media Access Control Media Access Control
  • RRC Radio Resource Control
  • the bottom layer of the terminal device detects whether the airspace transmit filter fails. After the bottom layer of the terminal device detects that the airspace transmit filter fails, it can report the first indication information to the high layer of the terminal device. Therefore, the high layer of the terminal device can determine whether the airspace transmission filter is invalid according to the first indication information. For example, the high layer of the terminal device may determine whether the airspace transmission filter is invalid according to the number of times the bottom layer continuously reports the first indication information.
  • the upper layer of the first terminal may add one to the count value of the second counter when receiving the first indication information sent by the lower layer of the first terminal.
  • the bottom layer of the first terminal may determine whether to send the first indication information to a high layer according to the first information and the second timer.
  • Implementation 1 The bottom layer of the first terminal determines to send the first indication information to the high layer of the first terminal when any of the following conditions is met:
  • the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter
  • the first terminal Before the second timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold .
  • Implementation mode 2 the bottom layer of the first terminal counts a third counter according to the first information and the second timer, and further determines whether to send the information to the first terminal according to the count value of the third counter A higher layer of the terminal sends the first indication information.
  • the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter, and adds one to the count value of the third counter .
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the second timer expires, but the measurement of the sidelink data If the result is less than the third threshold, add one to the count value of the third counter.
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the second timer expires, and the measurement of the sidelink data If the result is greater than or equal to the third threshold, set the count value of the third counter to zero, or reset the third counter.
  • the third threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the third threshold is the same as the first threshold in Embodiment 1.
  • the bottom layer of the first terminal when the count value of the third counter is greater than or equal to a fourth threshold, the bottom layer of the first terminal sends the first indication information to the high layer of the first terminal.
  • the fourth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the bottom layer of the first terminal reports the first indication information when an invalid transmission occurs once
  • K is greater than or equal to the fourth threshold.
  • the invalid transmission here may include not receiving the sidelink data sent by the second terminal using the first spatial transmission filter, and/or receiving the sidelink data sent by the second terminal using the first spatial transmission filter , but the measurement result of the side row data is smaller than the third threshold.
  • the bottom layer of the first terminal may report the first indication information to the upper layer when the first airspace transmission filter does not meet the sidelink transmission condition, or may also report the first indication information to the upper layer when the first airspace transmission filter does not meet the sidelink transmission condition.
  • the first indication information is reported to the higher level.
  • Embodiment 2-1 When receiving the sidelink data sent by the second terminal using the first spatial transmission filter, and the measurement result of the sidelink data is greater than or equal to a third threshold, the The bottom layer of the first terminal sets the second timer to zero, or resets the second timer.
  • the bottom layer of the first terminal considers that receiving the sidelink data whose measurement result is greater than or equal to the third threshold is a valid transmission, and when a valid transmission is received, the second timer is set to zero, or Reset the second timer, and wait for the next effective transmission of the second terminal within the duration of the second timer.
  • the bottom layer of the first terminal considers that the sidelink data sent by the second terminal using the first airspace transmit filter has not been received, or that the second terminal receives the data sent by the second terminal using the first airspace transmit filter The transmitted side data, but the measurement result of the side data is less than the first threshold is an invalid transmission.
  • Embodiment 2-2 When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, the bottom layer of the first terminal sets the second timing timer to zero, or reset the second timer.
  • the bottom layer of the first terminal considers that the reception of the side data is a valid transmission, and when the side data is received, the second timer is set to zero, or the second timer is reset , within the duration of the second timer, waiting for the next sidelink transmission of the second terminal.
  • the bottom layer of the first terminal considers that failure to receive the sidelink data sent by the second terminal using the first airspace transmit filter is an invalid transmission.
  • the duration of the second timer is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the second timer and the first timer in Embodiment 1 are the same timer.
  • the high layer of the first terminal also maintains or manages a third timer.
  • the high layer of the first terminal resets or restarts the third timer.
  • the upper layer of the first terminal does not receive the first indication information sent by the lower layer of the first terminal, and resets the count value of the second counter to zero , or reset the second counter.
  • the upper layer of the first terminal does not receive the first indication information reported by the lower layer, indicating that the first airspace transmission filter meets the sidelink transmission condition, or the first airspace transmission filter is used
  • the performed sideline transfer is a valid transfer, therefore, the second counter can be set to zero, or the second counter can be reset.
  • the duration of the third timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
  • the high layer of the first terminal determines that the first airspace transmit filter is invalid.
  • the fifth threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement.
  • the count value of the second counter is greater than or equal to the fifth threshold, it indicates that the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement has reached the maximum number of times. In this case, it may be determined that the first airspace transmit filter is invalid.
  • the fifth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the fifth threshold is the same as the second threshold in Embodiment 1.
  • S202 may include:
  • the first terminal counts a fourth counter according to the first information
  • the fourth counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
  • the count value of the fourth counter can be increased by one, that is, the number of times that the first airspace transmit filter fails to meet the side transmission requirement is increased by one.
  • the count value of the fourth counter is set to zero, or the fourth counter is reset.
  • the first terminal When the first terminal receives the side data sent by the second terminal, and the measurement result of the side data is greater than or equal to the sixth threshold, it indicates that the signal energy of the second terminal received by the first terminal is relatively high, and the first airspace transmission The filter can meet the side transmission requirement, therefore, the count value of the fourth counter can be cleared, or the fourth counter can be reset, that is, the number of times that the first airspace transmission filter does not meet the side transmission requirement can be cleared.
  • the sixth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the sixth threshold is the same as the first threshold in Embodiment 1.
  • the count value of the fourth counter is greater than or equal to a seventh threshold, it is determined that the first airspace transmit filter is invalid.
  • the seventh threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement.
  • the count value of the fourth counter is greater than or equal to the seventh threshold, it indicates that the number of times the first airspace transmit filter fails to meet the sidelink transmission requirement has reached the maximum number of times. In this case, it can be determined that the first airspace transmit filter is invalid.
  • the seventh threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
  • the seventh threshold is the same as the second threshold in Embodiment 1.
  • the first terminal determines whether the first airspace transmission filter is invalid according to whether the wireless link between the first terminal and the second terminal is invalid.
  • the wireless link between the first terminal and the second terminal fails, it is determined that the first airspace transmission filter fails.
  • the wireless link between the first terminal and the second terminal does not fail, it is determined that the first airspace transmission filter is not failed, or, it may be determined in combination with any of the foregoing Embodiments 1-3.
  • a spatial domain transmit filter is disabled.
  • S202 may include:
  • the first terminal determines whether the first airspace transmit filter is invalid according to the first information and the fourth timer.
  • the sender terminal periodically sends the sidelink data
  • the duration of the fourth timer can be determined according to the cycle of sending the sidelink data by the sender terminal, for example, the duration of the fourth timer is equal to that of the sender terminal
  • the period for sending the sidelink data, or the duration of the fourth timer is equal to an integer multiple of the period for sending the sidelink data by the sending terminal.
  • the sending terminal sends the sidelink data when the eighth timer expires, and the duration of the fourth timer may be determined according to the duration of the eighth timer.
  • the duration of the fourth timer is equal to the duration of the Yth timer, or the duration of the fourth timer is equal to an integer multiple of the duration of the eighth timer.
  • the duration of the eighth timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
  • the fourth timer is a keep-alive timer.
  • the duration of the fourth timer is determined according to a maximum inactivity period (maximum inactivity period). If the wireless link between the transmitting terminal and the receiving terminal does not fail, the receiving terminal will receive the sidelink data sent by the transmitting terminal before the fourth timer expires.
  • the sideline data may include: DIRECT LINK KEEPALIVE REQUEST message.
  • the DIRECT LINK KEEPALIVE REQUEST message includes a maximum inactivity period.
  • the first terminal if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter device has not failed.
  • the receiving terminal receives the sidelink data sent by the transmitting terminal, indicating that the wireless link between the transmitting terminal and the receiving terminal has not failed. In this case, it can be determined that the first airspace transmission filter Alternatively, it may be determined whether the first airspace transmit filter is invalid in combination with the manner described in Embodiment 1 to Embodiment 3 above.
  • the first terminal if the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter before the fourth timer expires, determine that the first airspace Send filter failed.
  • the receiving terminal does not receive the sidelink data sent by the transmitting terminal, indicating that the wireless link between the transmitting terminal and the receiving terminal fails.
  • the first airspace transmission filter can be determined device fails.
  • the method 200 also includes:
  • the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, then the first terminal sends to the second terminal In response to the sidestream data, start or restart the fourth timer.
  • the response to the lateral data may include:
  • the starting or restarting the fourth timer includes:
  • the first terminal stops the fourth timer, and/or starts or restarts the fourth timer, wherein the value of the fourth timer is according to the sidelink data sent by the second terminal
  • the included instructions are OK.
  • the first terminal when the first terminal receives the DIRECT LINK KEEPALIVE RESPONSE message, and the DIRECT LINK KEEPALIVE RESPONSE message includes the maximum inactivity period, the first terminal stops the fourth timer, and starts or restarts the fourth timer, and the first terminal The value of the four timers is set to the maximum inactivity period.
  • the sending terminal maintains the fifth timer, the sixth timer and the fifth counter.
  • the fifth timer, the sixth timer and the fifth counter are used for a PC5 unicast link keep-alive procedure (PC5 unicast link keep-alive procedure).
  • the fifth timer and the sixth timer are called keep-alive timers, and the fifth counter is called a keep-alive counter.
  • the fifth counter is used to count the number of times that the sending terminal continuously sends or retransmits sidelink data to the receiving terminal.
  • the transmitting terminal sets the count value of the fifth counter to 0.
  • the sixth timer is used to periodically trigger the PC5 unicast link keep-alive process.
  • the duration of the sixth timer is determined according to the value of the maximum inactive period, or the value of the maximum inactive period is determined according to the duration of the sixth timer. For example, the value of the maximum inactive period is greater than the duration of the sixth timer.
  • the sending terminal may periodically send sidelink data, and receive a response to the sidelink data returned by the receiving terminal to determine whether the PC5 unicast link between the sending terminal and the receiving terminal is alive, Or, is it invalid.
  • the sending terminal sends the sidelink data when the sixth timer expires, and receives a response to the sidelink data returned by the receiving terminal, so as to determine the relationship between the sending terminal and the receiving terminal. Whether the PC5 unicast link is alive, or in other words, whether it is invalid.
  • the duration of the fifth timer is the maximum waiting duration for the sending terminal to wait for the receiving terminal to reply with a response to the sidelink data.
  • the receiving terminal sends a response to the sidelink data to the transmitting terminal.
  • the sending terminal receives the response of the sidelink data, the fifth timer is stopped, and the sixth timer is restarted or started.
  • the receiving terminal uses the first airspace transmission filter to retransmit the sidelink data to the transmitting terminal.
  • the receiving terminal uses the first airspace transmission filter to retransmit the sidelink data
  • the receiving terminal starts or restarts the fifth timer, and adds one to the calculated value of the fifth counter.
  • the terminal at the receiving end retransmits the sidelink data using the first airspace transmission filter, stop the sixth timer.
  • the method 200 further includes:
  • the second terminal sends the sidelink data to the first terminal.
  • the sending terminal sends sidelink data to the receiving terminal again to determine whether the link between the two is alive.
  • the receiving terminal can determine the airspace transmission filter according to the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, or the wireless link status between the transmitting terminal and the receiving terminal Is it invalid.
  • the receiving terminal may determine that the spatial receiving filter corresponding to the spatial transmitting filter is also invalid when the spatial transmitting filter is invalid.
  • the receiving terminal may determine that the spatial domain filter pair formed by the spatial domain transmission filter and the spatial domain reception filter corresponding to the spatial domain transmission filter is invalid when the spatial domain transmission filter is invalid.
  • the receiving terminal may also determine whether the spatial domain receiving filter is invalid or whether the spatial domain filter pair is invalid according to the manner described in the foregoing embodiments.
  • the receiving terminal may determine whether the spatial receiving filter corresponding to the spatial transmitting filter is invalid according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the spatial transmitting filter.
  • the spatial receiving filter corresponding to the spatial transmitting filter is invalid according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the spatial transmitting filter.
  • the receiving terminal may determine whether the spatial receiving filter is invalid according to the detection result and/or measurement result that the receiving terminal uses the spatial receiving filter to receive sidelink data.
  • the spatial receiving filter may be invalid according to the detection result and/or measurement result that the receiving terminal uses the spatial receiving filter to receive sidelink data.
  • the receiving terminal may determine whether the airspace receiving filter is invalid according to the status of the wireless link between the transmitting terminal and the receiving terminal. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
  • the receiving terminal may determine the configuration of the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the spatial transmitting filter. Whether the spatial filter pair is disabled.
  • the spatial filter pair is disabled.
  • the receiving terminal may determine the spatial domain formed by the spatial receiving filter and the spatial transmitting filter corresponding to the spatial receiving filter according to the detection result and/or measurement result of the receiving terminal using the spatial receiving filter to receive side-link data. Whether the filter pair is invalid.
  • the receiving terminal may determine whether the spatial filter pair formed by the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter is invalid according to the wireless link status between the transmitting terminal and the receiving terminal.
  • the method 200 further includes:
  • the first terminal determines that the first airspace transmission filter is invalid, the first terminal sends second indication information to the second terminal, where the second indication information is used to indicate at least one of the following information kind:
  • the first airspace transmit filter is deactivated
  • the spatial domain receiving filter corresponding to the first spatial domain transmitting filter is invalid
  • the spatial domain filter pair formed by the first spatial domain transmission filter and the spatial domain reception filter corresponding to the first spatial domain transmission filter is invalid
  • the second terminal executes a process of selecting a spatial transmission filter
  • the second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters.
  • the receiving terminal When determining that the first airspace transmission filter is invalid, the receiving terminal sends second indication information to the transmitting terminal, where the second indication information may be used to directly or indirectly instruct the transmitting terminal to perform an airspace transmission filter selection process, Alternatively, use the new spatial transmit filter for sidelink transmissions.
  • the second indication information is used to indicate that the first spatial domain transmit filter is invalid, or that the spatial domain receive filter corresponding to the first spatial domain transmit filter is invalid, or that the first spatial domain transmit filter and the The spatial filter pair formed by the spatial receiving filter corresponding to the first spatial transmitting filter is ineffective, so that the transmitting terminal can use the second spatial transmitting filter for sidelink transmission, or the transmitting terminal performs a process of selecting a spatial transmitting filter To select a new optimal spatial domain transmission filter, or, the transmitting terminal uses different spatial domain transmission filters to transmit multiple side reference signals, and the multiple side reference signals are used to select a new optimal spatial domain transmission filter .
  • the second indication information is used to instruct the transmitting terminal to perform a process of selecting a spatial domain transmission filter, so that the transmitting terminal may perform the process of selecting a spatial domain transmission filter to select a new optimal spatial domain transmission filter.
  • the second indication information is used to instruct the transmitting terminal to use different spatial domain transmission filters to transmit multiple sidelink reference signals, so as to select a new optimal spatial domain transmission filter.
  • the second airspace transmission filter may be determined according to the N CSI-RS resources reported by the terminal at the receiving end.
  • the second spatial transmission filter may be any spatial transmission filter except the first spatial transmission filter among the spatial transmission filters corresponding to the N CSI-RS resources.
  • the first spatial transmission filter is the spatial transmission filter corresponding to the CSI-RS resource with the best measurement result among the N CSI-RS resources
  • the second spatial transmission filter may be N CSI-RS resources - a spatial domain transmission filter corresponding to a CSI-RS resource whose measurement result is suboptimal among the RS resources.
  • the second indication information may be sent through any sidelink information or sidelink signaling.
  • the second indication information is carried by one of the following: sidelink control information (Sidelink Control Information, SCI), media access control control element (Media Access Control Control Element, MAC CE), PC5-RRC signaling.
  • sidelink control information SCI
  • media access control control element Media Access Control Control Element, MAC CE
  • PC5-RRC signaling PC5-RRC signaling.
  • the receiving terminal can determine whether the airspace transmitting filter is based on the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmitting filter, or the wireless link condition between the transmitting terminal and the receiving terminal. invalidated. Further, when the airspace transmit filter fails, the receiving terminal may instruct the transmitting end terminal to use a new airspace transmit filter for sidelink transmission, or perform an airspace transmit filter selection process to select a new optimal airspace transmit filter device, so as to ensure the reliability of sideline transmission.
  • FIG. 17 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application. As shown in FIG. 17, the method 300 includes the following content:
  • the second terminal uses the first airspace transmit filter to transmit sidelink data to the first terminal;
  • the second terminal determines whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether a response to the sidelink data is received by the second terminal.
  • the first terminal is a receiving terminal
  • the second terminal is a transmitting terminal
  • beam failure judgment may be performed by the transmitting terminal.
  • a spatial domain transmission filter may also be referred to as a transmission beam, a spatial relation, or a spatial setting.
  • a spatial domain reception filter may also be called a reception beam, a spatial relation, or a spatial setting.
  • the spatial transmission filter and the spatial reception filter are collectively referred to as a spatial filter
  • the spatial transmission filter may also be referred to as a transmission end spatial filter
  • the spatial reception filter may also be referred to as a reception end spatial filter.
  • beam failure may also be referred to as failure of a spatial domain filter, and may specifically include failure of a spatial transmission filter and/or failure of a spatial reception filter.
  • the transmitting terminal may determine whether the airspace transmission filter is invalid according to the feedback result of the sidelink data sent by using the airspace transmission filter and/or the response to the sidelink data, and/or, Determining whether the spatial receiving filter corresponding to the spatial transmitting filter (that is, the first spatial receiving filter) is invalid, and/or determining the composition of the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter Whether the spatial domain filter pair is invalid.
  • the sending terminal can judge the failure of the sending beam according to the feedback result of the sending terminal using the sending beam to send the sidelink data or the response to the sidelink data, and/or the failure judgment of the receiving beam , and/or, the failure judgment of the beam pair.
  • the second terminal determines whether the airspace transmission filter is invalid according to the feedback result of the sidelink data or whether the second terminal receives a response to the sidelink data
  • the method of the embodiment of the present application is also applicable to determining whether the receiving filter is invalid, and is suitable for determining whether the spatial domain filter pair is invalid.
  • the terminal device in the embodiment of the present application may transmit data in a beam manner. Therefore, the transmitting terminal needs to determine an optimal transmitting beam, and the receiving terminal needs to determine an optimal receiving beam.
  • the method of determining the optimal beam refer to the relevant description of the method 200, and for the sake of brevity, details are not repeated here.
  • the sidelink data may be any data exchanged between terminal devices, for example, PSSCH, PSCCH, direct link keep-alive request message (DIRECT LINK KEEPALIVE REQUEST message), direct link keep-alive Response message (DIRECT LINK KEEPALIVE RESPONSE message), PC5 signaling message, PC5 user plane data, etc.
  • PSSCH PSSCH
  • PSCCH PSCCH
  • direct link keep-alive request message DIRECT LINK KEEPALIVE REQUEST message
  • direct link keep-alive Response message DIRECT LINK KEEPALIVE RESPONSE message
  • PC5 signaling message PC5 user plane data, etc.
  • Embodiment 1 The second terminal determines whether the first airspace transmission filter is invalid according to the feedback result of the sidelink data.
  • the second terminal determines that the first airspace transmission filter is invalid:
  • the second terminal continuously detects K1 discontinuous transmission DTX states
  • the second terminal continuously detects K2 negative acknowledgment NACK information
  • the second terminal does not detect positive confirmation ACK information for K3 consecutive times;
  • K1, K2, and K3 are positive integers.
  • the K1, K2, and K3 are predefined, or are configured by the network device, or are determined according to the indication information of the first terminal, or are determined according to the indication information of the second terminal definite.
  • the K1, K2, and K3 may be equal or unequal.
  • the first terminal does not detect ACK information, which may include:
  • the first terminal detects DTX status and/or NACK information. That is, when the first terminal detects the DTX state or the NACK information, it can be considered that the ACK information is not detected.
  • the second terminal continuously detects that the DTX state does not include at least one of the following situations:
  • Case 1 When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the second information, the second terminal needs to send the feedback information corresponding to the sidelink data in the time unit, The second information is sent preferentially without receiving feedback information corresponding to the sidelink data, where the second information is uplink information or sidelink information.
  • the sending terminal sends the second information preferentially, resulting in not receiving the feedback result of the first sidelink data. Therefore, the sending terminal detects that the DTX is not caused by failure of the airspace transmission filter, so this situation is ruled out.
  • the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since in time slot n, the transmitting terminal also needs to transmit the second PSFCH, and the priority of the second PSFCH higher than the first PSFCH, the sending terminal will send the second PSFCH instead of receiving the first PSFCH, so that the sending terminal does not receive the first PSFCH sent by the receiving terminal.
  • the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since the transmitting terminal also needs to transmit a physical uplink control channel (Physical Uplink Control Channel, PUCCH) in time slot n ) or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and the priority of PUCCH or PUSCH is higher than that of the first PSFCH, then the transmitting terminal will send PUCCH or PUSCH instead of receiving the first PSFCH, thus causing the transmitting terminal The first PSFCH sent by the receiving terminal is not received.
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • Case 2 When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the third information, the second terminal needs to receive the feedback information corresponding to the sidelink data in the time unit, The third information is received preferentially without receiving the feedback information of the sidelink data, wherein the third information is downlink information or sidelink information.
  • the sending terminal receives the third information preferentially, resulting in not receiving the feedback result of the first sidelink data. Therefore, the sending terminal detects that the DTX is not caused by failure of the airspace transmission filter, so this situation is ruled out.
  • the transmitting terminal needs to receive the first PSFCH of the PSSCH transmitted by the first airspace transmission filter in time slot n, but since in time slot n, the transmitting terminal also needs to receive the Physical Downlink Control Channel (PDCCH ) or physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and the priority of PDCCH or PDSCH is higher than the first PSFCH, then the sending end terminal will receive PDCCH or PDSCH, but not the first PSFCH, thus causing the sending end terminal The first PSFCH sent by the receiving terminal is not received.
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink shared channel
  • the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since the transmitting terminal also needs to receive the Physical Sidelink Control Channel (Physical Sidelink Control Channel, PSCCH) or Physical Sidelink Shared Channel (PSSCH), and the priority of PSCCH or PSSCH is higher than that of the first PSFCH, then the transmitting terminal will receive the PSCCH or PSSCH instead of the first PSFCH, thus causing the transmission The end terminal does not receive the first PSFCH sent by the receiving end terminal.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • the sending terminal activates the sidelink feedback. That is, the sending terminal needs to determine whether to retransmit the sidelink data according to the feedback result of the sidelink data.
  • Embodiment 2 The transmitting terminal determines whether the first airspace transmission filter is invalid according to whether the wireless link between the transmitting terminal and the receiving terminal fails.
  • whether the wireless link between the transmitting terminal and the receiving terminal fails may be determined according to whether the transmitting terminal receives a response to the sidelink data.
  • the sending terminal counts a fifth counter according to whether a response to the sidelink data is received, and further determines the first airspace transmission filter according to the count value of the fifth counter. whether the device fails.
  • the fifth counter is used to count the number of times that the sending terminal continuously sends or retransmits sidelink data to the receiving terminal.
  • the transmitting terminal sets the count value of the fifth counter to 0.
  • the transmitting terminal determines that the first airspace transmit filter is invalid.
  • the eighth threshold may be the maximum number of retransmissions allowed.
  • the count value of the fifth counter is greater than or equal to the eighth threshold, it indicates that the number of sidelink transmissions using the first airspace transmit filter has reached the maximum number of retransmissions. In this case, it can be determined that the first airspace transmit filter is invalid.
  • the second terminal counts the fifth counter according to whether a response to the sidelink data is received, which may include:
  • the second terminal counts a fifth counter according to whether a response to the sidelink data is received and a fifth timer.
  • the count value of the fifth counter is set to zero, or the fifth counter is reset.
  • the second terminal does not receive a response to the sidelink data before the fifth timer expires, add one to the count value of the fifth counter.
  • the method 300 further includes:
  • the second terminal When using the first airspace transmit filter to transmit sidelink data to the first terminal, the second terminal starts or restarts the fifth timer, and stops the sixth timer.
  • the fifth timer and the sixth timer are called keep-alive timers, and the fifth counter is called a keep-alive counter.
  • the sixth timer is used to periodically trigger the PC5 unicast link keep-alive process.
  • the duration of the sixth timer is determined according to the value of the maximum inactive period, or the value of the maximum inactive period is determined according to the duration of the sixth timer. For example, the value of the maximum inactive period is greater than the duration of the sixth timer.
  • the sending terminal may periodically send sidelink data, and receive a response to the sidelink data returned by the receiving terminal to determine whether the PC5 unicast link between the sending terminal and the receiving terminal is alive, Or, is it invalid.
  • the sending terminal sends the sidelink data when the sixth timer expires, and receives a response to the sidelink data returned by the receiving terminal, so as to determine the relationship between the sending terminal and the receiving terminal. Whether the PC5 unicast link is alive, or in other words, whether it is invalid.
  • the duration of the fifth timer is the maximum waiting duration for the sending terminal to wait for the receiving terminal to reply with a response to the sidelink data.
  • the method 300 further includes:
  • the second terminal receives a response to the sidelink data before the fifth timer expires, stop the fifth timer, and start or restart the sixth timer.
  • the method 300 further includes:
  • the second terminal retransmits the sidelink data to the first terminal by using the first airspace transmit filter. Further, the second terminal adds one to the count value of the fifth counter; and/or starts or restarts the fifth timer, and/or stops the sixth timer.
  • the method 300 further includes:
  • the second terminal sends the sidelink data to the first terminal.
  • the sending terminal sends sidelink data to the receiving terminal again to determine whether the link between the two is alive.
  • the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless communication between the transmitting terminal and the receiving terminal) link status), to determine if the airspace transmit filter is disabled.
  • the transmitting terminal may determine that the spatial receiving filter corresponding to the spatial transmitting filter is also invalid when the spatial transmitting filter is invalid.
  • the transmitting terminal may determine that the spatial domain filter pair formed by the spatial domain transmission filter and the spatial domain reception filter corresponding to the spatial domain transmission filter is invalid when the spatial domain transmission filter is invalid.
  • the transmitting terminal may also determine whether the spatial domain receiving filter is invalid or whether the spatial domain filter pair is invalid according to the manner described in the foregoing embodiments.
  • the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless link between the transmitting terminal and the receiving terminal) whether it is invalid) determines whether the spatial receiving filter corresponding to the spatial transmitting filter is invalid.
  • the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless link between the transmitting terminal and the receiving terminal) road condition) to determine whether the spatial domain filter pair formed by the spatial domain transmit filter and the spatial domain receive filter corresponding to the spatial domain transmit filter is invalid.
  • the transmitting terminal when the transmitting terminal determines that the first airspace transmission filter is invalid, it may select a new airspace transmission filter for subsequent transmission, for example, select a second airspace transmission filter for subsequent transmission, Alternatively, a process of selecting a spatial domain transmission filter may also be performed to select a new optimal spatial domain transmission filter.
  • the method 300 further includes:
  • the second terminal determines that the first airspace transmission filter is invalid, the second terminal sends third indication information to the first terminal, where the third indication information is used to indicate at least one of the following information kind:
  • the first airspace transmit filter is deactivated
  • the spatial domain receiving filter corresponding to the first spatial domain transmitting filter is invalid
  • the spatial domain filter pair formed by the first spatial domain transmission filter and the spatial domain reception filter corresponding to the first spatial domain transmission filter is invalid
  • the second terminal executes a process of selecting a spatial transmission filter
  • the second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters
  • the second terminal is about to send a sidelink reference signal for selecting a target airspace transmit filter
  • the transmitting terminal may send third indication information to the receiving terminal, and the third indication information may be used to directly or indirectly indicate that the transmitting terminal
  • the terminal will perform an airspace transmit filter selection process, or will use a new airspace transmit filter for sidelink transmission.
  • the third indication information is used to indicate that the first airspace transmit filter is invalid, so that the receiving terminal can determine that the transmitting terminal will use the second airspace transmit filter for sidelink transmission, or that the transmitting terminal will perform airspace transmission.
  • the transmit filter selection process is to select a new optimal spatial domain transmit filter, or, the transmitting terminal will use different spatial domain transmit filters to transmit multiple sidelink reference signals, and the multiple sideline reference signals are used to select a new Optimal spatial transmit filter.
  • the third indication information is used to indicate that the transmitting terminal terminal is about to perform a process of selecting an airspace transmission filter, so that the receiving terminal terminal can assist the transmitting terminal terminal in selecting an optimal airspace transmission filter, for example, sending The end terminal sends the CSI reporting amount.
  • the third indication information is used to instruct the transmitting terminal to use different spatial domain transmitting filters to transmit multiple sidelink reference signals, so that the receiving terminal can use the same spatial domain receiving filter for sidelink reference After receiving the signal, the sidelink reference signal is further measured, and the CSI is reported or fed back according to the measurement result.
  • the third indication information is used to indicate that the transmitting terminal terminal will send a sidelink reference signal for selecting a target airspace transmit filter, so that the receiving terminal terminal can receive the sidelink reference signal and send the sidelink reference signal to the sidelink reference signal.
  • the reference signal is used for measurement, and the CSI is reported or fed back according to the measurement result.
  • the third indication information is used to indicate the amount of CSI reporting, so that the receiving terminal can determine according to the amount of CSI reporting that the transmitting terminal will perform the process of selecting an airspace transmission filter, and then the receiving terminal can assist the transmission.
  • the end terminal selects the optimal airspace transmission filter, for example, performs CSI reporting or feedback according to the CSI reporting amount indicated by the transmitting end terminal.
  • the third indication information is used to determine a new airspace transmission filter selected by the transmitting end terminal, for example, the third indication information is used to indicate the second TCI state information, and the second TCI state information
  • the associated CSI-RS resource corresponds to the new airspace transmission filter selected by the transmitting end terminal, for example, the CSI-RS resource associated with the second TCI status information corresponds to the second airspace transmission filter, then the first The second airspace transmit filter is the airspace transmit filter to be used by the transmitting terminal.
  • the receiving terminal knows that the transmitting terminal will use the second airspace transmit filter for transmission, it can use the airspace receive filter associated with the second airspace transmit filter. Receiver to improve transmission performance.
  • the second airspace transmission filter may be determined according to the N CSI-RS resources reported by the terminal at the receiving end.
  • the second spatial transmission filter may be any spatial transmission filter except the first spatial transmission filter among the spatial transmission filters corresponding to the N CSI-RS resources.
  • the first spatial transmission filter is the spatial transmission filter corresponding to the CSI-RS resource with the best measurement result among the N CSI-RS resources
  • the second spatial transmission filter may be N CSI-RS resources - a spatial domain transmission filter corresponding to a CSI-RS resource whose measurement result is suboptimal among the RS resources.
  • the third indication information may be sent through any sidelink information or sidelink signaling.
  • the second indication information is carried by one of the following: sidelink control information (Sidelink Control Information, SCI), media access control control element (Media Access Control Control Element, MAC CE), PC5-RRC signaling.
  • the CSI reporting amount includes at least one of the following:
  • CSI-RS Resource Indicator CRI
  • CRI and Reference Signal Receiving Power Reference Signal Receiving Power
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • slot resource indication information slot resource indication and RSRP, slot resource indication and SINR, do not report or empty ('none').
  • the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the second terminal device, or the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the second terminal device The index corresponding to the CSI-RS resource.
  • the transmitting terminal may determine whether the airspace transmitting filter is invalid according to the feedback result of the sidelink data sent by using the airspace transmitting filter, or the wireless link condition between the transmitting terminal and the receiving terminal. Further, in the case that the airspace transmit filter fails, the transmitting terminal may indicate to the receiving terminal that the transmitting terminal will use a new airspace transmit filter for sidelink transmission, or will perform an airspace transmit filter selection process to select a new one.
  • the optimal spatial domain transmit filter can ensure the reliability of sidewalk transmission.
  • Fig. 18 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 determine whether the first airspace transmission filter is invalid according to the first information, where the first information includes at least one of the following:
  • the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmission filter
  • the first indication information wherein the first indication information is used to indicate the occurrence of an invalidation instance of the airspace transmission filter.
  • the processing unit 410 is further configured to:
  • the first information and the first counter determine whether the first airspace transmit filter is invalid.
  • the processing unit 410 is further configured to:
  • the count value of the first counter determine whether the first airspace transmit filter is invalid.
  • the processing unit 410 is further configured to:
  • the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the first timer expires, add one to the count value of the first counter; and / or
  • the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than the first threshold , adding one to the count value of the first counter;
  • the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to the set
  • the first threshold is set, the count value of the first counter is set to zero, or the first counter is reset.
  • the processing unit 410 is further configured to:
  • the terminal device When the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than the first threshold, set the first timing timer is set to zero, or resets the first timer; or
  • the terminal device When the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmit filter, set the first timer to zero, or reset the first timer .
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the bottom layer determines whether to send the first indication information to a high layer according to the first information and the second timer.
  • the processing unit 410 is further configured to:
  • the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, determine to send the first indication information to the high layer; and /or,
  • the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold , determining to send the first indication information to a higher layer.
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, add one to the count value of the third counter; and/or
  • the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold , adding one to the count value of the third counter; and/or
  • the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to the first Three thresholds, set the count value of the third counter to zero, or reset the third counter.
  • the processing unit 410 is further configured to:
  • the count value of the third counter is greater than or equal to the fourth threshold, it is determined to send the first indication information to a high layer of the terminal device.
  • the processing unit 410 is further configured to:
  • the bottom layer transmits the sidelink data setting a second timer to zero, or resetting said second timer;
  • the terminal device When the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmit filter, set the second timer to zero at the bottom layer, or reset the second timer.
  • the processing unit 410 is further configured to:
  • the third timer is reset or restarted at the high layer.
  • the processing unit 410 is further configured to:
  • the upper layer does not receive the first indication information sent by the lower layer of the terminal device, and sets the count value of the second counter to zero, or resets the second counter.
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the duration of the first timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
  • the duration of the second timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
  • the duration of the third timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
  • the processing unit 410 is further configured to:
  • the processing unit 410 is further configured to:
  • the first information and the fourth timer determine whether the first airspace transmit filter is invalid.
  • the processing unit 410 is further configured to:
  • the terminal device determines whether the first airspace transmission filter is not invalid; and/or
  • the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter is invalid.
  • the terminal device further includes:
  • a communication unit configured to send a message to the second terminal when the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter before the fourth timer expires. sending a response to the sidestream data;
  • the processing unit 410 is further configured to: start or restart the fourth timer.
  • the processing unit 410 is specifically configured to:
  • the sidelink data includes direct link keep-alive request information
  • the response to the sidelink data includes direct link keep-alive ringing information.
  • the terminal device 400 further includes:
  • a communication unit configured to send second indication information to the second terminal when it is determined that the first airspace transmission filter is invalid, where the second indication information is used to indicate at least one of the following information:
  • the first airspace transmit filter is deactivated
  • the second terminal executes a process of selecting a spatial transmission filter
  • the second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters.
  • the second indication information is carried by at least one of the following:
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the first terminal 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 to realize the For the sake of brevity, the corresponding process of the first terminal in the shown method 200 is not repeated here.
  • Fig. 19 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal equipment 500 includes:
  • a communication unit 510 configured to send sidelink data to the first terminal by using the first airspace transmission filter
  • the processing unit 520 is configured to determine whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether the terminal device receives a response to the sidelink data.
  • the processing unit 520 is further configured to:
  • the terminal device continuously detects K1 discontinuous transmission DTX states
  • the terminal device continuously detects K2 negative acknowledgment NACK information
  • the terminal device does not detect positive confirmation ACK information for K3 consecutive times;
  • K1, K2, and K3 are positive integers.
  • the K1, K2, and K3 are predefined or configured by a network device.
  • the terminal device detects that the DTX state does not include at least one of the following situations:
  • the terminal device When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the second information, the terminal device preferentially sends the feedback information corresponding to the sidelink data in a time unit second information, without receiving feedback information corresponding to the sidelink data, where the second information is uplink information or sidelink information;
  • the terminal device preferentially receives the feedback information corresponding to the sidelink data in the time unit that needs to receive the feedback information
  • the third information does not receive the feedback information of the sidelink data, where the third information is downlink information or sidelink information.
  • the terminal device activates sidelink feedback.
  • the processing unit 520 is further configured to:
  • the processing unit 520 is further configured to:
  • the first airspace transmit filter When the first airspace transmit filter is used to transmit sidelink data to the first terminal, start or restart the fifth timer, and stop the sixth timer.
  • the processing unit 520 is further configured to:
  • the terminal device receives a response to the sidelink data before the fifth timer expires, set the count value of the fifth counter to zero, or reset the fifth counter.
  • the processing unit 520 is further configured to:
  • the terminal device receives a response to the sidelink data before the fifth timer expires, stop the fifth timer, and start or restart the sixth timer.
  • the communication unit 510 is also used to:
  • the processing unit 520 is further configured to:
  • the communication unit 510 is also used to:
  • the sidelink data includes direct link keep-alive request information
  • the response to the sidelink data includes direct link keep-alive response information.
  • the processing unit 520 is further configured to:
  • the communication unit 510 is also used to:
  • the terminal device determines that the first airspace transmission filter is invalid, send third indication information to the first terminal, where the third indication information is used to indicate at least one of the following information:
  • the first airspace transmit filter is deactivated
  • the terminal device executes a process of selecting an airspace transmission filter
  • the terminal device transmits multiple sidelink reference signals using different spatial transmission filters
  • the terminal device is about to send a side reference signal for selecting a target airspace transmit filter
  • the second transmission configuration indicates TCI state information, wherein the first airspace transmit filter is determined according to the CSI-RS resource associated with the first TCI state information, and the CSI-RS resource associated with the second TCI state information is the same as the first TCI state information.
  • the CSI-RS resources associated with the TCI state information are different.
  • the CSI reporting amount includes at least one of the following:
  • Channel state information reference signal CSI-RS resource indication CRI, CRI and reference signal received power RSRP, CRI and received signal strength indication SINR, time slot resource indication information, time slot resource indication and RSRP, time slot resource indication and SINR, not reported ;
  • the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the terminal device, or the time slot resource indication information is used to determine the CSI-RS resource sent by the terminal device the corresponding index.
  • the third indication information is carried by at least one of the following:
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 500 may correspond to the second terminal 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 500 are respectively in order to realize the For the sake of brevity, the corresponding process of the second terminal in method 300 will not be repeated here.
  • FIG. 20 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. 20 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 invoke 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 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.
  • the transceiver 630 in the communication device 600 may correspond to the communication unit 410 in the terminal device 400 shown in FIG. 20, and the transceiver 630 may perform the operations or functions performed by the communication unit 410. , which will not be repeated here.
  • the communication device 600 may specifically be the second terminal in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the second 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. 21 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 21 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 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 input interface 730 and the output interface 740 in the chip 700 may correspond to the communication unit 410 in the terminal device 400 shown in FIG.
  • the operation or function of for the sake of brevity, will not be repeated here.
  • the chip can be applied to the second terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the second terminal in the methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the second 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.
  • Fig. 22 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 22 , the communication system 900 includes a first terminal 910 and a second terminal 920 .
  • the first terminal 910 can be used to realize the corresponding functions realized by the first terminal in the above method
  • the second terminal 920 can be used to realize the corresponding functions realized by the second terminal in the above method. This will not be repeated here.
  • 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 memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may 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 computer-readable storage medium can be applied to the second terminal in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the second 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 second 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 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 computer program product can be applied to the second terminal in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the second terminal in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the second 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 may 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 computer program can be applied to the second 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 second 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 and other media that can store program codes. .

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Abstract

A wireless communication method and a terminal device. The method comprises: a first terminal determines, according to first information, whether a first spatial sending filter fails, wherein the first information comprises at least one of the following: whether the first terminal receives sidelink data sent by a second terminal using the first spatial sending filter; a measurement result of the sidelink data sent by the first terminal to the second terminal using the first spatial sending filter; and first indication information sent by a bottom layer of the first terminal to a higher layer of the first terminal, wherein the first indication information is used for indicating that a spatial sending filter failure instance occurs.

Description

无线通信的方法和终端设备Method and terminal device for wireless communication 技术领域technical field
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。The embodiments of the present application relate to the communication field, and in particular to a wireless communication method and a terminal device.
背景技术Background technique
为了提升侧行通信***的传输速率，考虑在侧行通信***中使用高频段，例如毫米波频段，因此，需要确定发送端的最优发送波束和接收端的最优接收波束，当发送端和接收端使用最优发送波束和最优接收波束进行侧行传输时，由于终端的移动，以及可能出现物体遮挡等原因导致传输环境发生变化，导致此时的波束不再是最优波束了，可能会出现链路中断的现象，称为波束失效(beam failure)，因此，如何判断侧行通信***发生波束失效是一项亟需解决的问题。In order to improve the transmission rate of the sidewalk communication system, it is considered to use a high frequency band in the sidewalk communication system, such as the millimeter wave frequency band. Therefore, it is necessary to determine the optimal transmit beam at the transmitter and the optimal receive beam at the receiver. When the transmitter and receiver When using the optimal transmit beam and the optimal receive beam for sidewalk transmission, the transmission environment changes due to the movement of the terminal and possible object occlusions. As a result, the beam at this time is no longer the optimal beam and may occur The phenomenon of link interruption is called beam failure. Therefore, how to judge the occurrence of beam failure in the sidelink communication system is an urgent problem to be solved.
发明内容Contents of the invention
本申请提供了一种无线通信的方法和终端设备，能够根据侧行传输的测量结果或反馈结果，确定波束是否失效。The present application provides a wireless communication method and a terminal device, which can determine whether a beam is invalid according to a measurement result or a feedback result of sidelink transmission.
第一方面，提供了一种无线通信的方法，包括：第一终端根据第一信息，确定第一空域发送滤波器是否失效，其中，所述第一信息包括以下中的至少一项：所述第一终端是否接收到第二终端使用第一空域发送滤波器发送的侧行数据；所述第一终端对所述第二终端使用第一空域发送滤波器发送的侧行数据的测量结果；第一终端的底层向第一终端的高层发送的第一指示信息，其中，所述第一指示信息用于指示发生空域发送滤波器失效实例。In a first aspect, a wireless communication method is provided, including: a first terminal determines whether a first airspace transmit filter is invalid according to first information, where the first information includes at least one of the following: the Whether the first terminal has received the sidelink data sent by the second terminal using the first airspace transmission filter; the measurement result of the sidelink data sent by the second terminal using the first airspace transmission filter by the first terminal; The first indication information sent by the bottom layer of a terminal to the high layer of the first terminal, where the first indication information is used to indicate that an instance of failure of the airspace transmission filter occurs.
第二方面，提供了一种无线通信的方法，包括：第二终端使用第一空域发送滤波器向第一终端发送侧行数据；所述第二终端根据所述侧行数据的反馈结果，或者，所述第二终端根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效。In a second aspect, a wireless communication method is provided, including: the second terminal sends sidelink data to the first terminal using a first airspace transmission filter; the second terminal sends sidelink data according to a feedback result of the sidelink data, or , the second terminal determines whether the first airspace transmit filter is invalid according to whether a response to the sidelink data is received.
第三方面，提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。In a third aspect, a terminal device is provided, configured to execute the method in the foregoing first aspect or various implementation manners thereof.
具体地，该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。Specifically, the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
第四方面，提供了一种终端设备，用于执行上述第二方面或其各实现方式中的方法。In a fourth aspect, a terminal device is provided, configured to execute the method in the foregoing second aspect or its various implementation manners.
具体地，该终端设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。Specifically, the terminal device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
第五方面，提供了一种终端设备，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。In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and 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.
第六方面，提供了一种终端设备，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，执行上述第二方面或其各实现方式中的方法。In a sixth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
第七方面，提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a seventh aspect, a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
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，使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
第八方面，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至第二方面中的任一方面或其各实现方式中的方法。In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
第九方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。A ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
第十方面，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至第二方面中的任一方面或其各实现方式中的方法。In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
通过上述技术方案，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果或测量结果确定空域发送滤波器是否失效。进一步地，在空域发送滤波器失效的情况下，接收端终端可以指示发送端终端使用新的空域发送滤波器进行侧行传输，或者执行空域发送滤波器选取过程以选取新的最优空域发送滤波器，从而能够保证侧行传输的可靠性。Through the above technical solution, the receiving terminal can determine whether the airspace transmission filter is invalid according to the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter. Further, when the airspace transmit filter fails, the receiving terminal may instruct the transmitting end terminal to use a new airspace transmit filter for sidelink transmission, or perform an airspace transmit filter selection process to select a new optimal airspace transmit filter device, so as to ensure the reliability of sideline transmission.
附图说明Description of drawings
图1是本申请实施例应用的一种通信***架构的示意性图。FIG. 1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.
图2是本申请实施例应用的另一种通信***架构的示意性图。Fig. 2 is a schematic diagram of another communication system architecture applied in the embodiment of the present application.
图3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。Fig. 3 is a schematic diagram of uplink communication within a network coverage provided by the present application.
图4是本申请提供的一种部分网络覆盖侧行通信的示意性图。Fig. 4 is a schematic diagram of partial network coverage side communication provided by the present application.
图5是本申请提供的一种网络覆盖外侧行通信的示意性图。Fig. 5 is a schematic diagram of outbound communication provided by the network coverage provided by the present application.
图6是本申请提供的一种存在中央控制节点的侧行通信的示意性图。Fig. 6 is a schematic diagram of a side communication with a central control node provided by the present application.
图7是本申请提供的一种单播侧行通信的示意性图。Fig. 7 is a schematic diagram of unicast sidelink communication provided by the present application.
图8是本申请提供的一种组播侧行通信的示意性图。Fig. 8 is a schematic diagram of multicast sideline communication provided by the present application.
图9是本申请提供的一种广播侧行通信的示意性图。Fig. 9 is a schematic diagram of broadcast sideline communication provided by the present application.
图10是本申请提供的一种NR-V2X中的时隙结构的示意性图。Fig. 10 is a schematic diagram of a time slot structure in NR-V2X provided by the present application.
图11是本申请提供的一种SL CSI-RS时频位置的示意图。FIG. 11 is a schematic diagram of a time-frequency position of an SL CSI-RS provided by the present application.
图12是本申请提供的一种不使用模拟波束和使用模拟波束的***示意性图。Fig. 12 is a schematic diagram of a system provided by the present application without using analog beams and using analog beams.
图13是本申请实施例提供的一种无线通信的方法的示意***互图。Fig. 13 is a schematic interaction diagram of a wireless communication method provided by an embodiment of the present application.
图14是根据本申请一个实施例的第一定时器和第一计数器的工作原理图。Fig. 14 is a working principle diagram of a first timer and a first counter according to an embodiment of the present application.
图15是根据本申请另一个实施例的第一定时器和第一计数器的工作原理图。Fig. 15 is a working principle diagram of a first timer and a first counter according to another embodiment of the present application.
图16是根据本申请一个实施例的第四定时器，第五定时和第六定时器的工作原理图。Fig. 16 is a working principle diagram of the fourth timer, the fifth timer and the sixth timer according to an embodiment of the present application.
图17是本申请实施例提供的另一种无线通信的方法的示意***互图。FIG. 17 is a schematic interaction diagram of another wireless communication method provided by an embodiment of the present application.
图18是根据本申请实施例提供的一种终端设备的示意性框图。Fig. 18 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
图19是根据本申请实施例提供的另一种终端设备的示意性框图。Fig. 19 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.
图20是根据本申请实施例提供的一种通信设备的示意性框图。Fig. 20 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
图21是根据本申请实施例提供的一种芯片的示意性框图。Fig. 21 is a schematic block diagram of a chip provided according to an embodiment of the present application.
图22是根据本申请实施例提供的一种通信***的示意性框图。Fig. 22 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
具体实施方式Detailed ways
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。The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. With regard to the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile communication，GSM)***、码分多址(Code Division Multiple Access，CDMA)***、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)***、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)***、先进的长期演进(Advanced long term evolution，LTE-A)***、新空口(New Radio，NR)***、NR***的演进***、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)***、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)***、非地面通信网络(Non-Terrestrial Networks，NTN)***、通用移动通信***(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)***或其他通信***等。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.
通常来说，传统的通信***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***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，或车联网(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信***。Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application may also be applied to these communication systems.
可选地，本申请实施例中的通信***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。Optionally, 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.
可选地，本申请实施例中的通信***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***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。Optionally, 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.
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。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.
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、个人数字助理(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***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。The terminal device can be a station (STATION, ST) in a WLAN, 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 assistant (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.
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)。In the embodiment of this application, 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).
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。In this embodiment of the application, 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.
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。As an example but not a limitation, in this embodiment of the present application, 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.
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。In the embodiment of the present application, 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.
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。As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network equipment may be a satellite or a balloon station. For example, 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. Optionally, the network device may also be a base station installed on land, water, and other locations.
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。In this embodiment of the present application, 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.
应理解，本文中术语“***”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。It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
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。The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion.
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。It should be understood that 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. For example, 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.
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。In the description of the embodiments of the present application, 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.
本申请实施例中，“预定义”或“预配置”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。In this embodiment of the application, "predefined" or "preconfigured" can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The application does not limit its specific implementation. For example, pre-defined may refer to defined in the protocol.
本申请实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信***中的相关协议，本申请对此不做限定。In the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
为便于理解本申请实施例的技术方案，以下通过具体实施例详述本申请的技术方案。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific examples. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the protection scope of the embodiments of the present application. The embodiment of the present application includes at least part of the following content.
图1是本申请实施例适用的一种通信***的示意图。车载终端(车载终端121和车载终端122)的传输资源是由基站110分配的，车载终端根据基站110分配的资源在侧行链路上进行数据的发送。具体地，基站110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。Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable. The transmission resources of the vehicle-mounted terminals (vehicle-mounted terminal 121 and vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminals transmit data on the sidelink according to the resources allocated by the base station 110 . Specifically, the base station 110 may allocate resources for a single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
图2是本申请实施例适用的另一种通信***的示意图。车载终端(车载终端131和车载终端132) 在侧行链路的资源上自主选取传输资源进行数据传输。可选地，车载终端可以随机选取传输资源，或者通过侦听的方式选取传输资源。Fig. 2 is a schematic diagram of another communication system to which the embodiment of the present application is applicable. The vehicle-mounted terminals (vehicle-mounted terminal 131 and vehicle-mounted terminal 132 ) autonomously select transmission resources on sidelink resources for data transmission. Optionally, the vehicle-mounted terminal may select transmission resources randomly, or select transmission resources by listening.
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3所示；部分网络覆盖侧行通信，如图4所示；及网络覆盖外侧行通信，如图5所示。It should be noted that, in side communication, according to the network coverage of the communicating terminal, it can be divided into network coverage inner communication, as shown in Figure 3; part of the network coverage side communication, as shown in Figure 4 ; and network coverage outer line communication, as shown in FIG. 5 .
图3：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。Figure 3: In inline communication within the network coverage, all terminals performing sideline communication are within the coverage of the base station. Therefore, the above-mentioned terminals can perform sideline communication based on the same sideline configuration by receiving configuration signaling from the base station .
图4：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。Figure 4: 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.
图5：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。Figure 5: 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.
图6：对于有中央控制节点的侧行通信，多个终端构成一个通信组，该通信组内具有中央控制节点，又可以称为组头终端(Cluster Header，CH)，该中央控制节点具有以下功能之一：负责通信组的建立；组成员的加入、离开；进行资源协调，为其他终端分配侧行传输资源，接收其他终端的侧行反馈信息；与其他通信组进行资源协调等功能。Figure 6: For side communication with a central control node, multiple terminals form a communication group. There is a central control node in the communication group, which can also be called a cluster head terminal (Cluster Header, CH). The central control node has the following One of the functions: responsible for the establishment of communication groups; joining and leaving of group members; performing resource coordination, allocating side transmission resources for other terminals, receiving side communication feedback information from other terminals; performing resource coordination with other communication groups, etc.
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***中通信数据通过基站接收或者发送的方式不同，车联网***采用终端到终端直接通信的方式，因此具有更高的频谱效率以及更低的传输时延。在3GPP定义了两种传输模式，分别记为：第一模式(sidelink resource allocation mode 1)和第二模式(sidelink resource allocation mode 2)。It should be noted that 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. The Internet of Vehicles system adopts the method of terminal-to-terminal direct communication, so it has higher spectral efficiency and lower transmission delay. Two transmission modes are defined in 3GPP, which are respectively recorded as: the first mode (sidelink resource allocation mode 1) and the second mode (sidelink resource allocation mode 2).
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3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。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. 3 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sidelink transmission to the terminal.
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5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3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。The second mode: the terminal selects a resource from the resource pool for data transmission. As shown in Figure 5, the terminal is located outside the coverage of the cell, and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or, as shown in Figure 3, the terminal independently selects transmission resources from the resource pool configured by the network Make sideways transfers.
在新空口-车辆到其他设备(New Radio-Vehicle to Everything，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。In the new air interface-vehicle to other equipment (New Radio-Vehicle to Everything, NR-V2X), it supports automatic driving, so it puts forward higher requirements for data interaction between vehicles, such as higher throughput, lower Latency, higher reliability, larger coverage, more flexible resource allocation, etc.
在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7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8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9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。In LTE-V2X, broadcast transmission is supported, and in NR-V2X, unicast and multicast transmission are introduced. For unicast transmission, there is only one terminal at the receiving end, as shown in Figure 7, 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 8, 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 The terminal is any terminal around the transmitting terminal. As shown in FIG. 9 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6 are all receiving terminals.
为便于更好的理解本申请实施例，对本申请相关的NR-V2X***帧结构进行说明。In order to better understand the embodiments of the present application, the frame structure of the NR-V2X system related to the present application will be described.
NR-V2X中的时隙结构图10所示，图10中的(a)表示时隙中不包括物理侧行反馈信道(Physical Sidelink Feedback Channel，PSFCH)的时隙结构；图10中的图(b)表示包括PSFCH的时隙结构。The time slot structure in NR-V2X is shown in Figure 10. (a) in Figure 10 indicates that the time slot does not include the physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH) time slot structure; the diagram in Figure 10 ( b) shows the slot structure including PSFCH.
NR-V2X中物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)在时域上从该时隙的第二个侧行符号开始，占用2个或3个正交频分复用(Orthogonal frequency-division multiplexing，OFDM)符号，在频域上可以占用{10,12 15,20,25}个物理资源块(physical resource block，PRB)。为了降低UE对PSCCH的盲检测的复杂度，在一个资源池内只允许配置一个PSCCH符号个数和PRB个数。另外，因为子信道为NR-V2X中物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)资源分配的最小粒度，PSCCH占用的PRB个数必须小于或等于资源池内一个子信道中包含的PRB个数，以免对PSSCH资源选择或分配造成额外的限制。PSSCH在时域上也是从该时隙的第二个侧行符号开始，该时隙中的最后一个时域符号为保护间隔(Guard Period，GP)符号，其余符号映射PSSCH。该时隙中的第一个侧行符号是第二个侧行符号的重复，通常接收端终端将第一个侧行符号用作自动增益控制(Auto gain control，AGC)符号，该符号上的数据通常不用于数据解调。PSSCH在频域上占据M个子信道，每个子信道包括N个连续的PRB。如图10中的(a)所示。In NR-V2X, the Physical Sidelink Control Channel (PSCCH) starts from the second sidelink symbol of the time slot in the time domain and occupies 2 or 3 Orthogonal frequency division multiplexing (Orthogonal frequency- division multiplexing (OFDM) symbols can occupy {10, 12 15, 20, 25} physical resource blocks (physical resource blocks, PRBs) in the frequency domain. In order to reduce the complexity of the UE's blind detection of the PSCCH, only one number of PSCCH symbols and one number of PRBs are allowed to be configured in one resource pool. In addition, because sub-channels are the minimum granularity for Physical Sidelink Shared Channel (PSSCH) resource allocation in NR-V2X, the number of PRBs occupied by PSCCH must be less than or equal to the number of PRBs contained in a sub-channel in the resource pool , so as not to impose additional restrictions on PSSCH resource selection or allocation. In the time domain, the PSSCH also starts from the second side row symbol of the time slot, the last time domain symbol in the time slot is a guard interval (Guard Period, GP) symbol, and the remaining symbols are mapped to the PSSCH. The first side row symbol in this time slot is the repetition of the second side row symbol. Usually, the receiving terminal uses the first side row symbol as an automatic gain control (AGC) symbol. Data is generally not used for data demodulation. The PSSCH occupies M subchannels in the frequency domain, and each subchannel includes N consecutive PRBs. As shown in (a) in Figure 10.
当时隙中包含PSFCH信道时，该时隙中倒数第二个和倒数第三个符号用作PSFCH信道传输，在 PSFCH信道之前的一个时域符号用作GP符号，如图10中的(b)所示。When a time slot contains a PSFCH channel, the second-to-last and third-to-last symbols in the time slot are used for PSFCH channel transmission, and a time domain symbol before the PSFCH channel is used as a GP symbol, as shown in (b) in Figure 10 shown.
为便于更好的理解本申请实施例，对本申请相关的侧行(Sidelink，SL)信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)进行说明。In order to better understand the embodiments of the present application, the sidelink (Sidelink, SL) channel state information reference signal (Channel State Information Reference Signal, CSI-RS) related to the present application will be described.
为了更好的支持单播通信，NR-V2X中支持SL CSI-RS，SL CSI-RS在满足以下3个条件时发送：In order to better support unicast communication, SL CSI-RS is supported in NR-V2X, and SL CSI-RS is sent when the following three conditions are met:
1、UE发送对应的PSSCH，也就是说，UE不能只发送SL CSI-RS；1. The UE sends the corresponding PSSCH, that is to say, the UE cannot only send SL CSI-RS;
2、高层信令激活了侧行CSI上报；2. The high-level signaling activates the sideline CSI reporting;
3、在高层信令激活侧行CSI上报的情况下，UE发送的二阶SCI中的相应比特触发了侧行CSI上报。3. In the case that the high-level signaling activates the sideline CSI reporting, the corresponding bit in the second-order SCI sent by the UE triggers the sideline CSI reporting.
SL CSI-RS支持的最大端口数为2，两个端口时不同端口的SL CSI-RS在同一个OFDM符号的相邻两个资源元素(Resource Element，RE)上通过码分的方式复用，在一个PRB内每个端口的SL CSI-RS的个数为1，即密度为1。所以，在一个PRB内SL CSI-RS最多只会出现在一个OFDM符号上，这个OFDM符号的具***置由发送终端确定，为了避免对PSCCH和第二阶SCI的资源映射造成影响，SL CSI-RS不能与PSCCH和第二阶SCI位于同一个OFDM符号。由于PSSCH DMRS所在OFDM符号的信道估计精度较高，而且两个端口的SL CSI-RS将在频域上占用两个连续的RE，所以SL-CSI-RS也不能和PSSCH的DMRS发送在同一个OFDM符号上。SL CSI-RS所在的OFDM符号的位置由PC5无线资源控制(Radio Resource Control，RRC)中的sl-CSI-RS-FirstSymbol参数指示。The maximum number of ports supported by SL CSI-RS is 2. When there are two ports, SL CSI-RS of different ports are multiplexed by code division on two adjacent resource elements (Resource Element, RE) of the same OFDM symbol. The number of SL CSI-RS for each port in a PRB is 1, that is, the density is 1. Therefore, SL CSI-RS will only appear on one OFDM symbol at most in one PRB. The specific position of this OFDM symbol is determined by the transmitting terminal. In order to avoid affecting the resource mapping of PSCCH and second-order SCI, SL CSI-RS It cannot be located in the same OFDM symbol with PSCCH and second-order SCI. Since the channel estimation accuracy of the OFDM symbol where the PSSCH DMRS is located is relatively high, and the SL CSI-RS of two ports will occupy two consecutive REs in the frequency domain, the SL-CSI-RS cannot be sent in the same channel as the DMRS of the PSSCH. on OFDM symbols. The position of the OFDM symbol where the SL CSI-RS is located is indicated by the sl-CSI-RS-FirstSymbol parameter in the PC5 radio resource control (Radio Resource Control, RRC).
SL CSI-RS在一个PRB内占用的第一个RE的位置由PC5RRC中的sl-CSI-RS-FreqAllocation参数指示，如果SL CSI-RS为一个端口，该参数为长度为12的比特位图，对应一个PRB内的12个RE，如果SL CSI-RS为两个端口，该参数为长度为6的比特位图，在这种情况下SL CSI-RS占用2f(1)和2f(1)+1两个RE，其中f(1)表示值为1的比特在上述比特位图中的索引。SL CSI-RS的频域位置也是由发送终端确定，但是确定的SL CSI-RS的频域位置不能和PT-RS发生冲突。图11给出了一种SL CSI-RS时频位置的示意图，在该图11中，SL CSI-RS端口数为2，sl-CSI-RS-FirstSymbol为8，sl-CSI-RS-FreqAllocation为[b 5,b 4,b 3,b 2,b 1,b 0]＝[0,0,0,1,0,0]。 The position of the first RE occupied by the SL CSI-RS in a PRB is indicated by the sl-CSI-RS-FreqAllocation parameter in PC5RRC. If the SL CSI-RS is a port, this parameter is a bitmap with a length of 12. Corresponding to 12 REs in one PRB, if the SL CSI-RS has two ports, this parameter is a bitmap with a length of 6. In this case, the SL CSI-RS occupies 2f(1) and 2f(1)+ 1 Two REs, where f(1) represents the index of a bit with a value of 1 in the above bitmap. The frequency domain position of the SL CSI-RS is also determined by the transmitting terminal, but the determined frequency domain position of the SL CSI-RS cannot conflict with the PT-RS. Figure 11 shows a schematic diagram of the time-frequency position of SL CSI-RS. In Figure 11, the number of SL CSI-RS ports is 2, sl-CSI-RS-FirstSymbol is 8, and sl-CSI-RS-FreqAllocation is [b 5 ,b 4 ,b 3 ,b 2 ,b 1 ,b 0 ]=[0,0,0,1,0,0].
为便于更好的理解本申请实施例，对本申请相关的NR SL***中的重传机制进行说明。In order to better understand the embodiment of this application, the retransmission mechanism in the NRSL system related to this application will be described.
在NR SL***中，为了提高传输的可靠性，引入了混合自动请求重传(Hybrid Automatic Repeat reQuest，HARQ)重传机制。NR SL***中支持两种HARQ重传机制，即盲重传和基于HARQ反馈的重传。In the NR SL system, in order to improve transmission reliability, a Hybrid Automatic Repeat reQuest (HARQ) retransmission mechanism is introduced. The NR SL system supports two HARQ retransmission mechanisms, namely blind retransmission and retransmission based on HARQ feedback.
当发送端终端发送侧行数据时，可以激活侧行反馈，接收端终端根据检测结果向发送端发送侧行反馈信息混合自动请求重传-应答(Hybrid Automatic Repeat request Acknowledgement，HARQ-ACK)。发送端终端根据接收端终端的HARQ-ACK信息判断是否需要进行重传。例如，如果发送端终端接收到否定应答(Negative Acknowledgement，NACK)或检测到非连续传输(Discontinuous Transmission，DTX)状态，则进行重传，如果接收到肯定应答(Acknowledgement，ACK)，则不需要进行重传。When the sender terminal sends sidelink data, sidelink feedback can be activated, and the receiver terminal sends sidelink feedback information to the sender according to the detection result Hybrid Automatic Repeat request Acknowledgment (HARQ-ACK). The transmitting terminal determines whether retransmission is required according to the HARQ-ACK information of the receiving terminal. For example, if the sending terminal receives a negative acknowledgment (Negative Acknowledgment, NACK) or detects a discontinuous transmission (Discontinuous Transmission, DTX) state, it will retransmit, if it receives a positive acknowledgment (Acknowledgment, ACK), it does not need to be retransmitted Retransmission.
盲重传即发送端终端不需要根据接收端终端的反馈而自主的进行重传。例如，发送端终端通过广播的方式发送侧行数据时，此时不会希望接收端终端进行侧行反馈，因此，为了提高传输可靠性，发送端终端可以自主的进行重传，如重传4次或8次等。在NR SL***中，每个传输块(Transport Block，TB)最多支持32次重传。Blind retransmission means that the sending terminal does not need to retransmit autonomously according to the feedback from the receiving terminal. For example, when the sending terminal sends side data through broadcasting, it does not want the receiving terminal to perform side feedback at this time. Therefore, in order to improve transmission reliability, the sending terminal can retransmit autonomously, such as retransmitting 4 times or 8 times etc. In the NR SL system, each transport block (Transport Block, TB) supports up to 32 retransmissions.
为便于更好的理解本申请实施例，对本申请相关的多波束***进行说明。In order to better understand the embodiments of the present application, the multi-beam system related to the present application will be described.
NR***的设计目标包括高频段(例如6GHz以上的频段)的大带宽通信。当工作频率变高时，传输过程中的路径损耗会增大，从而影响高频***的覆盖能力。为了能够有效地保证高频段NR***的覆盖，一种有效的技术方案便是基于大规模天线阵列(Massive MIMO)，以形成增益更大的赋形波束，克服传播损耗，确保***覆盖。The design goal of the NR system includes large-bandwidth communication in a high-frequency band (for example, a frequency band above 6 GHz). When the operating frequency becomes higher, the path loss in the transmission process will increase, thereby affecting the coverage capability of the high-frequency system. In order to effectively ensure the coverage of high-frequency NR systems, an effective technical solution is based on a massive antenna array (Massive MIMO) to form a shaped beam with greater gain, overcome propagation loss, and ensure system coverage.
毫米波天线阵列，由于波长更短，天线阵子间距以及孔径更小，可以让更多的物理天线阵子集成在一个有限大小的二维天线阵列中，同时，由于毫米波天线阵列的尺寸有限，从硬件复杂度、成本开销以及功耗等因素考虑，无法采用数字波束赋形方式，而是通常采用模拟波束赋形方式，在增强网络覆盖同时，也可以降低设备的实现复杂度。The millimeter-wave antenna array, due to the shorter wavelength, smaller antenna element spacing and smaller aperture, allows more physical antenna elements to be integrated in a limited-sized two-dimensional antenna array. At the same time, due to the limited size of the millimeter-wave antenna array, from Considering factors such as hardware complexity, cost overhead, and power consumption, digital beamforming cannot be used, but analog beamforming is usually used, which can reduce the complexity of device implementation while enhancing network coverage.
一个小区(扇区)使用一个较宽的波束(beam)来覆盖整个小区。因此在每个时刻，小区覆盖范围内终端设备都有机会获得***分配的传输资源。A cell (sector) uses a wider beam (beam) to cover the entire cell. Therefore, at each moment, the terminal equipment within the coverage of the cell has the opportunity to obtain the transmission resources allocated by the system.
NR/5G的多波束(Multi-beam)***通过不同的beam来覆盖整个小区，即每个beam覆盖一个较小的范围，通过时间上的扫描(sweeping)来实现多个beam覆盖整个小区的效果。NR/5G multi-beam (Multi-beam) system covers the entire cell through different beams, that is, each beam covers a small range, and the effect of multiple beams covering the entire cell is achieved through time sweeping (sweeping) .
图12示出了不使用波束赋形和使用波束赋形的***的示意图。图12中的(a)是传统的、不使用波束赋形的LTE和NR***，图12中的(b)是使用波束赋形的NR***：Fig. 12 shows a schematic diagram of a system without beamforming and with beamforming. (a) in Figure 12 is a traditional LTE and NR system without beamforming, and (b) in Figure 12 is an NR system using beamforming:
在图12中的(a)中，LTE/NR网络侧使用一个宽的波束来覆盖整个小区，终端1-终端5在任何时刻都可以接收到网络信号。In (a) in Figure 12, the LTE/NR network side uses a wide beam to cover the entire cell, and terminals 1-5 can receive network signals at any time.
与此相反，图12中的(b)中网络侧使用较窄的波束(例如图中的波束1-波束4)，在不同的时刻使用不同波束来覆盖小区中的不同区域，例如在时刻1，NR网络侧通过波束1覆盖终端1所在的区域；在时刻2，NR网络侧通过波束2覆盖终端2所在的区域；在时刻3，NR网络侧通过波束3覆盖终端3和终端4所在的区域；在时刻4，NR网络侧通过波束4覆盖终端5所在的区域。In contrast, the network side in (b) in Figure 12 uses narrower beams (such as beam 1-beam 4 in the figure), and uses different beams to cover different areas in the cell at different times, for example, at time 1 , the NR network side covers the area where terminal 1 is located through beam 1; at time 2, the NR network side covers the area where terminal 2 is located through beam 2; at time 3, the NR network side covers the area where terminal 3 and terminal 4 are located through beam 3 ; At time 4, the NR network side uses beam 4 to cover the area where terminal 5 is located.
图12中的(b)中，由于网络使用较窄的波束，发射能量可以更集中，因此可以覆盖更远的距离；同时由于波束较窄，每个波束只能覆盖小区中的部分区域，因此模拟波束赋形是“以时间换空间”。In (b) in Figure 12, because the network uses narrower beams, the transmission energy can be more concentrated, so it can cover a longer distance; at the same time, due to the narrower beams, each beam can only cover part of the area in the cell, so Analog beamforming is "trading time for space".
模拟波束赋形不仅可以用于网络侧设备，也同样可以用于终端。同时，模拟波束赋形不仅可以用于信号的发送(称为发送波束)，同样也可以用于信号的接收(称为接收波束)。Analog beamforming can be used not only for network-side devices, but also for terminals. At the same time, analog beamforming can not only be used for signal transmission (called transmit beam), but also can be used for signal reception (called receive beam).
不同的波束(beam)可以通过上面承载的不同信号来进行识别。Different beams can be identified by the different signals carried on them.
一些不同波束(beam)上传输不同的同步信号块(Synchronization Signal block，SS block)，终端设备可以通过不同的SS block来分辨出不同的波束(beam)。Different synchronization signal blocks (Synchronization Signal block, SS block) are transmitted on some different beams (beams), and terminal devices can distinguish different beams (beams) through different SS blocks.
一些不同的波束(beam)上传输不同的信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)，终端设备通过CSI-RS信号/CSI-RS资源来识别出不同的波束(beam)。Different channel state information reference signals (Channel State Information Reference Signal, CSI-RS) are transmitted on some different beams (beams), and terminal devices identify different beams (beams) through CSI-RS signals/CSI-RS resources.
在一个多波束(multi-beam)***中，物理下行控制信道(Physical Downlink Control Channel，PDCCH)和物理下行共享信道(Physical Downlink Shared Channel，PDSCH)可以通过不同的下行发送波束来传输。In a multi-beam (multi-beam) system, the physical downlink control channel (Physical Downlink Control Channel, PDCCH) and the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) can be transmitted through different downlink transmission beams.
对于载频在6G Hz以下***，终端侧一般没有模拟波束，因此采用全向天线(或者接近全向的天线)来接收基站不同下行发送波束发送的信号。For systems with a carrier frequency below 6 GHz, there is generally no analog beam on the terminal side, so omnidirectional antennas (or near-omnidirectional antennas) are used to receive signals sent by different downlink transmission beams of the base station.
对于毫米波***，终端侧可能会有模拟波束，需要使用对应的下行接收波束去接收对应的下行发送波束发送的信号。此时，需要相应的波束指示信息(beam indication)来协助终端设备确定网络侧的发送波束相关信息，或者终端侧对应的接收波束相关信息。For the millimeter wave system, there may be analog beams on the terminal side, and the corresponding downlink receive beams need to be used to receive signals sent by the corresponding downlink transmit beams. At this time, corresponding beam indication information (beam indication) is needed to assist the terminal device to determine the related information of the transmitting beam on the network side, or the corresponding receiving beam related information on the terminal side.
在NR***中，波束指示信息不是直接指示波束本身，而是通过信号之间的准共址(Quasi-co-located，QCL)('QCL-TypeD'类型)来进行指示。在终端设备侧，确定接收相应的信道/信号的统计特性，也是基于QCL假设。In the NR system, the beam indication information does not directly indicate the beam itself, but is indicated by quasi-co-located (QCL) ('QCL-TypeD' type) between signals. On the side of the terminal device, determining the statistical characteristics of receiving the corresponding channel/signal is also based on the QCL assumption.
为便于更好的理解本申请实施例，对下行传输的QCL指示或假设进行说明。In order to better understand the embodiment of the present application, the QCL indication or assumption of downlink transmission is described.
终端设备在进行信号接收时，为了提高接收性能，可以利用数据传输所对应的传输环境的特性来改进接收算法。例如可以利用信道的统计特性来优化信道估计器的设计和参数。在NR***中，数据传输所对应的这些特性通过QCL状态(QCL-Info)来表示。When the terminal device receives signals, in order to improve the receiving performance, it can use the characteristics of the transmission environment corresponding to the data transmission to improve the receiving algorithm. For example, the statistical properties of the channel can be used to optimize the design and parameters of the channel estimator. In the NR system, these characteristics corresponding to data transmission are represented by QCL status (QCL-Info).
下行传输如果来自不同的传输接收点(Transmission Reception Point，TRP)/面板(panel)/波束(beam)，则数据传输所对应的传输环境的特性可能也会有变化，因此在NR***中，网络设备侧在传输下行控制信道或数据信道时，会通过传输配置指示(Transmission Configuration Indicator，TCI)状态将对应的QCL状态信息指示给终端设备。If the downlink transmission comes from different transmission reception points (Transmission Reception Point, TRP) / panel (panel) / beam (beam), the characteristics of the transmission environment corresponding to the data transmission may also change. Therefore, in the NR system, the network When the device side is transmitting the downlink control channel or data channel, it will indicate the corresponding QCL status information to the terminal device through the Transmission Configuration Indicator (TCI) state.
一个TCI状态可以包含如下配置：A TCI state can contain the following configurations:
TCI状态标识(ID)，用于标识一个TCI状态；TCI state identifier (ID), used to identify a TCI state;
QCL信息1； QCL information 1;
QCL信息2(可选)。QCL information 2 (optional).
其中，一个QCL信息又包含如下信息：Among them, a QCL information contains the following information:
QCL类型(type)配置，可以是QCL type A，QCL typeB，QCL typeC或QCL typeD中的一个；QCL type (type) configuration, which can be one of QCL type A, QCL typeB, QCL typeC or QCL typeD;
QCL参考信号配置，包括参考信号所在的小区标识(ID)，带宽部分(Band Width Part，BWP)标识(ID)以及参考信号的标识(可以是CSI-RS资源标识或同步信号块(Synchronization Signal Block，SSB)索引)。QCL reference signal configuration, including the cell identification (ID) where the reference signal is located, the bandwidth part (Band Width Part, BWP) identification (ID) and the identification of the reference signal (which can be a CSI-RS resource identification or a synchronization signal block (Synchronization Signal Block) , SSB) index).
其中，如果QCL信息1和QCL信息2都配置了，至少一个QCL信息的QCL类型必须为typeA，typeB，typeC中的一个，另一个QCL信息的QCL类型必须为QCL type D。Among them, if both QCL information 1 and QCL information 2 are configured, the QCL type of at least one QCL information must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information must be QCL type D.
其中，不同QCL类型配置的定义如下：Among them, the definitions of different QCL type configurations are as follows:
'QCL-TypeA':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread),平均时延(average delay)，延时扩展(delay spread)}；'QCL-TypeA': {Doppler shift (Doppler shift), Doppler spread (Doppler spread), average delay (average delay), delay spread (delay spread)};
'QCL-TypeB':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread)}；'QCL-TypeB': {Doppler shift (Doppler shift), Doppler spread (Doppler spread)};
'QCL-TypeC':{多普勒频移(Doppler shift),平均时延(average delay)}；'QCL-TypeC': {Doppler shift (Doppler shift), average delay (average delay)};
'QCL-TypeD':{空间接收参数(Spatial Rx parameter)}。'QCL-TypeD': {Spatial Rx parameter}.
在NR***中，网络侧可以为下行信号或下行信道指示相应的TCI状态。In the NR system, the network side can indicate the corresponding TCI state for the downlink signal or downlink channel.
如果网络侧通过TCI状态配置目标下行信道或目标下行信号的QCL参考信号为参考SSB或参考CSI-RS资源，且QCL类型配置为typeA，typeB或typeC，则终端可以假设该目标下行信号与该参考SSB或参考CSI-RS资源的大尺度参数是相同的，该大尺度参数通过QCL类型配置来确定。If the network side configures the target downlink channel or the QCL reference signal of the target downlink signal as the reference SSB or reference CSI-RS resource through the TCI state, and the QCL type is configured as typeA, typeB or typeC, the terminal can assume that the target downlink signal is consistent with the reference The large-scale parameters of the SSB or reference CSI-RS resources are the same, and the large-scale parameters are determined by the QCL type configuration.
类似的，如果网络侧通过TCI状态配置目标下行信道或下行信号的QCL参考信号为参考SSB或参考CSI-RS资源，且QCL类型配置为typeD，则终端可以采用与接收该参考SSB或参考CSI-RS资源相同的接收波束(即Spatial Rx parameter)，来接收所述目标下行信道或目标下行信号。通常的，目标下行信道(或下行信号)与它的参考SSB或参考CSI-RS资源在网络侧由同一个TRP或者同一个panel或者相同的波束来发送。如果两个下行信号或下行信道的传输TRP或传输panel或发送波束不同，通常会配置不同的TCI状态。Similarly, if the network side configures the QCL reference signal of the target downlink channel or downlink signal as a reference SSB or reference CSI-RS resource through the TCI state, and the QCL type is configured as typeD, the terminal can adopt and receive the reference SSB or reference CSI-RS resource. The receiving beam (that is, the Spatial Rx parameter) with the same RS resource is used to receive the target downlink channel or target downlink signal. Usually, the target downlink channel (or downlink signal) and its reference SSB or reference CSI-RS resource are sent by the same TRP or the same panel or the same beam at the network side. If the transmission TRP or transmission panel or transmission beam of two downlink signals or downlink channels are different, different TCI states are usually configured.
对于下行控制信道，可以通过无线资源控制(Radio Resource Control，RRC)信令或者RRC信令+媒体接入控制(Media Access Control，MAC)信令的方式来指示对应控制资源集(Control Resource Set，CORESET)的TCI状态。For the downlink control channel, the corresponding control resource set (Control Resource Set, CORESET) TCI status.
对于下行数据信道，可用的TCI状态集合通过RRC信令来指示，并通过MAC层信令来激活其中部分TCI状态，最后通过下行控制信息(Downlink Control Information，DCI)中的TCI状态指示域从激活的TCI状态中指示一个或两个TCI状态，用于所述DCI调度的PDSCH。2个TCI状态的情况主要是针对多个TRP类似的场景。例如，网络设备通过RRC信令指示N个候选的TCI状态，并通过MAC信令激活K个TCI状态，最后通过DCI中的TCI状态指示域从激活的TCI状态中指示1个或2个使用的TCI状态。For the downlink data channel, the available TCI state set is indicated by RRC signaling, and some of the TCI states are activated by MAC layer signaling, and finally activated by the TCI state indication field in the downlink control information (Downlink Control Information, DCI) One or two TCI states are indicated in the TCI state for the PDSCH scheduled by the DCI. The case of two TCI states is mainly for scenarios where multiple TRPs are similar. For example, the network device indicates N candidate TCI states through RRC signaling, activates K TCI states through MAC signaling, and finally indicates one or two active TCI states through the TCI state indication field in DCI. TCI status.
为了提升侧行通信***的传输速率，考虑在侧行传输***中使用毫米波频段，因此在侧行毫米波传输***中，需要确定发送端的最优发送波束和/或接收端的最优接收波束，当发送端和接收端使用最优发送波束和最优接收波束进行侧行传输时，由于终端的移动，以及可能出现物体遮挡等原因导致传输环境发生变化，此时的波束已经不是最优的波束了，并且可能会出现链路中断的现象，称为波束失效(beam failure)，如何判断波束失效是亟需解决的问题。In order to increase the transmission rate of the sidewalk communication system, consider using the millimeter wave frequency band in the sidewalk transmission system. Therefore, in the sidewalk millimeter wave transmission system, it is necessary to determine the optimal transmit beam at the transmitter and/or the optimal receive beam at the receiver. When the sending end and the receiving end use the optimal sending beam and the optimal receiving beam for sidewalk transmission, the transmission environment changes due to the movement of the terminal and the possible occlusion of objects, and the beam at this time is no longer the optimal beam. , and the phenomenon of link interruption may occur, which is called beam failure. How to judge the beam failure is an urgent problem to be solved.
图13是根据本申请实施例的无线通信的方法200的示意性图，如图13所示，该方法200包括如下至少部分内容：FIG. 13 is a schematic diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 13 , the method 200 includes at least part of the following:
S201，第二终端使用第一空域发送滤波器发送侧行数据；S201. The second terminal uses the first airspace transmit filter to transmit sidelink data;
S202，第一终端根据第一信息，确定第一空域发送滤波器是否失效，其中，所述第一信息包括以下中的至少一项：S202. The first terminal determines whether the first airspace transmit filter is invalid according to the first information, where the first information includes at least one of the following:
所述第一终端是否接收到第二终端使用第一空域发送滤波器发送的侧行数据；Whether the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter;
所述第一终端对所述第二终端使用第一空域发送滤波器发送的侧行数据的测量结果；A measurement result of the sidelink data sent by the first terminal to the second terminal using a first airspace transmission filter;
所述第一终端的底层向所述第一终端的高层发送的第一指示信息，其中，所述第一指示信息用于指示发生空域发送滤波器失效实例。The first indication information sent by the bottom layer of the first terminal to the high layer of the first terminal, where the first indication information is used to indicate that an instance of air domain transmission filter failure occurs.
在本申请实施例中，该第一终端为接收端终端，该第二终端为发送端终端。In this embodiment of the present application, the first terminal is a receiving terminal, and the second terminal is a transmitting terminal.
在本申请实施例中，空域发送滤波器(spatial domain transmission filter)也可以称为发送波束(transmission beam)或者空间关系(Spatial relation)或者空间配置(spatial setting)。In this embodiment of the present application, a spatial domain transmission filter may also be referred to as a transmission beam (transmission beam), a spatial relation (Spatial relation) or a spatial configuration (spatial setting).
在本申请实施例中，空域接收滤波器(spatial domain reception filter)也可以称为接收波束(reception beam)或者空间关系(Spatial relation)或者空间配置(spatial setting)。In this embodiment of the present application, a spatial domain reception filter may also be called a reception beam, a spatial relation, or a spatial setting.
在本申请实施例中，空域发送滤波器和空域接收滤波器统称为空域滤波器，空域发送滤波器也可以称为发送端空域滤波器，空域接收滤波器也可以称为接收端空域滤波器。In this embodiment of the present application, the spatial transmission filter and the spatial reception filter are collectively referred to as a spatial filter, the spatial transmission filter may also be referred to as a transmission end spatial filter, and the spatial reception filter may also be referred to as a reception end spatial filter.
在本申请实施例中，波束失效也可以称为空域滤波器失效，具体可以包括空域发送滤波器失效和/或空域接收滤波器失效。In this embodiment of the present application, beam failure may also be referred to as failure of a spatial domain filter, and may specifically include failure of a spatial transmission filter and/or failure of a spatial reception filter.
在一些实施例中，所述侧行数据的检测结果例如可以包括接收端终端是否检测到发送端终端发送的侧行数据，或者是否接收到发送端终端发送的侧行数据，或者是否成功检测到发送端终端发送的该侧行数据对应的SCI或PSCCH。例如，当接收端终端成功检测发送端终端发送的SCI或PSCCH时，可以认为接收端终端检测到或接收到发送端终端发送的侧行数据；当接收端终端没有成功检测发送端终端发送的SCI或PSCCH时，可以认为接收端终端没有检测到或没有接收到发送端终端发送的侧行数据。In some embodiments, the detection result of the side data may include, for example, whether the receiving terminal detects the side data sent by the sending terminal, or whether it receives the side data sent by the sending terminal, or whether it successfully detects The SCI or PSCCH corresponding to the sidelink data sent by the sender terminal. For example, when the receiving terminal successfully detects the SCI or PSCCH sent by the transmitting terminal, it can be considered that the receiving terminal has detected or received the sidelink data sent by the transmitting terminal; when the receiving terminal fails to detect the SCI sent by the transmitting terminal or PSCCH, it can be considered that the receiving terminal has not detected or received the sidelink data sent by the transmitting terminal.
在本申请一些实施例中，所述第一终端可以根据所述第二终端发送的参考信号的测量结果，确定所述侧行数据的测量结果。例如，所述第一终端可以根据所述第二终端使用所述第一空域发送滤波器发送的参考信号的测量结果，确定所述第二终端使用所述第一空域发送滤波器发送的侧行数据的测量结果。具体地，所述第一终端可以对第二终端使用第一空域发送滤波器发送的参考信号进行测量，将参考信号的测量结果确定为第二终端使用第一空域发送滤波器发送的侧行数据的测量结果。In some embodiments of the present application, the first terminal may determine the measurement result of the sidelink data according to the measurement result of the reference signal sent by the second terminal. For example, the first terminal may determine, according to the measurement result of the reference signal sent by the second terminal using the first spatial transmission filter, that the side line transmitted by the second terminal using the first spatial transmission filter The measurement results of the data. Specifically, the first terminal may measure the reference signal sent by the second terminal using the first spatial transmission filter, and determine the measurement result of the reference signal as the sidelink data transmitted by the second terminal using the first spatial transmission filter measurement results.
在一些实施例中，第二终端发送的参考信号又称为侧行参考信号。In some embodiments, the reference signal sent by the second terminal is also called a sidelink reference signal.
本申请实施例中的终端设备可以采用波束的方式进行数据的传输，因此，发送端终端需要确定最优的发送波束，接收端终端需要确定最优的接收波束。The terminal device in the embodiment of the present application may transmit data in a beam manner. Therefore, the transmitting terminal needs to determine an optimal transmitting beam, and the receiving terminal needs to determine an optimal receiving beam.
在一些实施例中，发送端终端和接收端终端可以通过发送侧行参考信号确定最优发送波束，即最优空域发送滤波器。In some embodiments, the transmitting-end terminal and the receiving-end terminal may determine an optimal transmit beam, that is, an optimal spatial domain transmit filter, by transmitting a side-link reference signal.
例如，发送端终端向接收端终端发送多个侧行参考信号，所述多个侧行参考行信号用于选取目标空域发送滤波器。For example, the transmitting terminal sends multiple side reference signals to the receiving terminal, and the multiple side reference signals are used to select a target airspace transmission filter.
在一些实施例中，所述侧行参考信号例如可以为CSI-RS，解调参考信号(Demodulation Reference Signal，DMRS)，定位参考信号(positioning reference signals，PRS)、相位跟踪参考信号(Phase Tracking Reference Signal，PT-RS)或侧行同步信号(包括侧行主同步信号和/或侧行辅同步信号)等，其中，该DMRS可以为用于解调物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)的DMRS，或者用于解调物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的DMRS，以下，以侧行参考信号为CSI-RS为例进行说明，但本申请并不限于此。In some embodiments, the sidelink reference signal can be, for example, CSI-RS, demodulation reference signal (Demodulation Reference Signal, DMRS), positioning reference signal (positioning reference signals, PRS), phase tracking reference signal (Phase Tracking Reference Signal, PT-RS) or side line synchronization signal (including side line main synchronization signal and/or side line secondary synchronization signal), etc., wherein, the DMRS can be used for demodulating the physical side line control channel (Physical Sidelink Control Channel, PSCCH) DMRS, or a DMRS used to demodulate a Physical Sidelink Shared Channel (PSSCH), below, the sidelink reference signal is CSI-RS as an example for illustration, but the present application is not limited thereto.
在本申请实施例中，发送端终端发送CSI-RS也可以表述为发送端终端发送CSI-RS资源，二者是等价表述。因此，所述发送端终端向接收端终端发送多个侧行参考信号，可以包括：In this embodiment of the present application, the sending terminal terminal sending the CSI-RS may also be expressed as sending the CSI-RS resource by the sending terminal terminal, and the two are equivalent expressions. Therefore, the sending terminal terminal sending multiple sidelink reference signals to the receiving terminal may include:
所述发送端终端向所述接收端终端发送多个CSI-RS资源，所述多个CSI-RS资源用于确定目标空域发送滤波器，或者说，最优空域发送滤波器。The sending terminal sends multiple CSI-RS resources to the receiving terminal, and the multiple CSI-RS resources are used to determine a target airspace transmission filter, or in other words, an optimal airspace transmission filter.
在一些实施例中，所述多个CSI-RS资源是使用不同的空域发送滤波器发送的，或者，所述多个CSI-RS资源不是使用相同的空域发送滤波器发送的。In some embodiments, the multiple CSI-RS resources are sent using different spatial domain transmission filters, or the multiple CSI-RS resources are not transmitted using the same spatial domain transmission filter.
在一些实施例中，所述接收端终端可以使用相同的空域接收滤波器接收所述发送端终端发送的CSI-RS资源。所述接收端终端可以对检测到的CSI-RS资源进行测量，根据测量结果进行CSI上报或反馈，从而发送端终端可以根据该CSI上报或反馈确定目标空域发送滤波器。In some embodiments, the receiving terminal may use the same spatial domain receiving filter to receive the CSI-RS resource sent by the transmitting terminal. The receiving terminal may measure the detected CSI-RS resource, and report or feed back CSI according to the measurement result, so that the transmitting terminal may determine the target airspace transmission filter according to the CSI reporting or feedback.
在一些实施例中，所述接收端终端可以向发送端终端发送目标CSI上报量，所述目标CSI上报量可以包括N个CSI-RS资源的指示信息和/或所述N个CSI-RS资源的测量结果。In some embodiments, the receiving terminal may send a target CSI reporting amount to the transmitting terminal, and the target CSI reporting amount may include indication information of N CSI-RS resources and/or the N CSI-RS resources measurement results.
在一些实施例中，所述CSI-RS资源的指示信息用于确定目标CSI-RS资源。In some embodiments, the indication information of the CSI-RS resource is used to determine the target CSI-RS resource.
在一些实现方式中，所述CSI-RS资源的指示信息用于确定CSI-RS资源的资源索引，作为示例，所述资源的指示信息可以为CSI-RS资源指示(CSI-RS Resource Indicator，CRI)。In some implementations, the indication information of the CSI-RS resource is used to determine the resource index of the CSI-RS resource. As an example, the indication information of the resource may be a CSI-RS resource indication (CSI-RS Resource Indicator, CRI ).
在另一些实现方式中，CSI-RS资源的指示信息用于确定所述第一终端发送CSI-RS资源所使用的传输资源信息，例如，发送端终端发送CSI-RS资源所对应的时隙信息。In some other implementation manners, the indication information of the CSI-RS resource is used to determine the transmission resource information used by the first terminal to send the CSI-RS resource, for example, the time slot information corresponding to the sending terminal terminal sending the CSI-RS resource .
在一些实施例中，CSI-RS资源的测量结果可以包括但不限于以下至少之一：In some embodiments, the measurement results of CSI-RS resources may include but not limited to at least one of the following:
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)。Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (Reference Signal Receiving Quality, RSRQ), Signal to Interference plus Noise Ratio (SINR).
在一些实施例中，所述N个CSI-RS资源为所述接收端终端检测到的CSI-RS资源中测量结果最高的N个CSI-RS资源。In some embodiments, the N CSI-RS resources are the N CSI-RS resources with the highest measurement results among the CSI-RS resources detected by the receiving terminal.
应理解，在本申请实施例中，所述第一空域发送滤波器可以是第二终端支持的多个空域发送滤波器中的任一空域发送滤波器，或者，也可以是根据第一终端向第二终端发送的目标CSI上报量确定的最优空域发送滤波器，或者，也可以是根据第一终端向第二终端发送的目标CSI上报量确定的可用的空域发送滤波器，本申请对此不作限定。It should be understood that, in this embodiment of the present application, the first airspace transmit filter may be any one of the multiple airspace transmit filters supported by the second terminal, or may be The optimal airspace transmission filter determined by the target CSI reporting amount sent by the second terminal, or an available airspace transmission filter determined according to the target CSI reporting amount sent by the first terminal to the second terminal. Not limited.
在本申请实施例中，第一终端使用第一空域接收滤波器接收该侧行数据，其中，该第一空域接收滤波器是与该第一空域发送滤波器相关联的空域接收滤波器。例如，第二终端向第一终端发送指示信息，该指示信息包括第一TCI状态，第一终端根据该第一TCI状态可以确定第二终端使用的空域发送滤波器为第一空域发送滤波器，或者，第一终端根据该第一TCI状态可以确定第一空域接收滤波器。In this embodiment of the present application, the first terminal uses a first spatial domain receiving filter to receive the sidelink data, where the first spatial domain receiving filter is a spatial domain receiving filter associated with the first spatial domain transmitting filter. For example, the second terminal sends indication information to the first terminal, where the indication information includes a first TCI state, and the first terminal may determine that the airspace transmit filter used by the second terminal is the first airspace transmit filter according to the first TCI state, Or, the first terminal may determine the first spatial domain reception filter according to the first TCI state.
在本申请实施例中，该第一空域发送滤波器和该第一空域接收滤波器称为一个空域滤波器对。In this embodiment of the present application, the first spatial domain transmit filter and the first spatial domain receive filter are referred to as a spatial domain filter pair.
在本申请一些实施例中，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果和/或测量结果，确定该空域发送滤波器是否失效，和/或，确定与该空域发送滤波器空域对应的空域接收滤波器(即第一空域接收滤波器)是否失效，和/或，确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对是否失效。即在本申请实施例中，接收端终端可以根据发送端终端使用发送波束发送侧行数据的检测结果和/或测量结果进行发送波束的失效判断，和/或，接收波束的失效判断，和/或，波束对的失效判断。In some embodiments of the present application, the receiving terminal may determine whether the airspace transmission filter is invalid according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or, Whether the spatial domain receive filter corresponding to the spatial domain transmit filter (that is, the first spatial domain receive filter) is invalid, and/or determine the spatial domain formed by the spatial domain transmit filter and the spatial domain receive filter corresponding to the spatial domain transmit filter Whether the filter pair is invalid. That is, in the embodiment of the present application, the receiving terminal can judge the failure of the transmitting beam according to the detection result and/or the measurement result of the sending terminal using the transmitting beam to transmit side-going data, and/or determine the failure of the receiving beam, and/or Or, the failure judgment of the beam pair.
在本申请实施例中，第一终端可以根据第一信息确定空域发送滤波器是否失效，和/或，确定空域接收滤波器是否失效，和/或，确定空域滤波器对是否失效。In this embodiment of the present application, the first terminal may determine whether the spatial domain transmit filter is invalid according to the first information, and/or determine whether the spatial domain receive filter is invalid, and/or determine whether the spatial domain filter pair is invalid.
应理解，本申请的实施例中以第一终端根据第一信息确定空域发送滤波器是否失效为例进行说 明，本申请的实施例的方法同样适用于确定接收滤波器是否失效，以及适用于确定空域滤波器对是否失效。It should be understood that, in the embodiment of the present application, the first terminal determines whether the airspace transmit filter is invalid according to the first information as an example for illustration, and the method in the embodiment of the present application is also applicable to determining whether the receiving filter is invalid, and is applicable to determining Whether the spatial filter pair is disabled.
需要说明的是，在本申请实施例中，所述侧行数据可以是终端设备之间交互的任意数据，例如，PSSCH，PSCCH，直通链路保活请求消息(DIRECT LINK KEEPALIVE REQUEST message)，直通链路保活响应消息(DIRECT LINK KEEPALIVE RESPONSE message)，PC5信令消息，PC5用户面数据等。It should be noted that, in this embodiment of the application, the sidelink data can be any data exchanged between terminal devices, for example, PSSCH, PSCCH, direct link keep-alive request message (DIRECT LINK KEEPALIVE REQUEST message), direct Link keep-alive response message (DIRECT LINK KEEPALIVE RESPONSE message), PC5 signaling message, PC5 user plane data, etc.
在一些实施例中，接收端终端可以在未接收到发送端终端使用第一空域发送滤波器发送的侧行数据的情况下，确定第一空域发送滤波器失效。In some embodiments, the receiving terminal may determine that the first airspace transmission filter is invalid when it does not receive the sidelink data sent by the transmitting terminal using the first airspace transmission filter.
在另一些实施例中，所述接收端终端可以在接收到发送端终端使用第一空域发送滤波器发送的侧行数据，但是该侧行数据的测量结果不满足预设条件的情况下，确定第一空域发送滤波器失效。In some other embodiments, the receiving terminal may determine that when receiving the sidelink data sent by the transmitting terminal using the first airspace transmission filter, but the measurement result of the sidelink data does not meet the preset condition The first airspace transmit filter is disabled.
在又一些实施例中，所述接收端终端可以在接收到底层上报的第一指示信息的情况下，确定第一空域发送滤波器失效。In still other embodiments, the receiving terminal may determine that the first airspace transmission filter is invalid when receiving the first indication information reported by the bottom layer.
以下，结合具体实施例，说明波束失效的判断方法。Hereinafter, a method for judging beam failure will be described in combination with specific embodiments.
实施例1：Example 1:
在本申请一些实施例中，所述S202包括：In some embodiments of the present application, the S202 includes:
根据所述第一信息和第一计数器，确定所述第一空域发送滤波器是否失效。According to the first information and the first counter, determine whether the first airspace transmit filter is invalid.
可选地，所述第一计数器可以用于统计第一空域发送滤波器不满足侧行传输需求的次数。Optionally, the first counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
在一些实施例中，所述第一空域发送滤波器不满足侧行传输需求可以包括：In some embodiments, the first airspace transmit filter does not meet the sidelink transmission requirements may include:
接收端终端未接收到发送端终端使用该第一空域发送滤波器发送的侧行数据，和/或The receiving terminal does not receive the sidelink data sent by the transmitting terminal using the first airspace transmit filter, and/or
接收端终端接收到发送端终端使用该第一空域发送滤波器发送的侧行数据，但是该侧行数据的测量结果不满足预设条件，例如小于第一阈值。The receiving terminal receives the sidelink data sent by the transmitting terminal using the first airspace transmit filter, but the measurement result of the sidelink data does not meet a preset condition, for example, is smaller than a first threshold.
在一些实施例中，所述第一空域发送滤波器不满足侧行传输需求可以理解为发送端终端使用第一空域发送滤波器发送侧行数据的信号质量较低，可能导致接收端终端接收不到该侧行数据，或者，即使接收到了，由于信号质量较低，也会影响信号的解调性能，总之，使用第一空域发送滤波器进行侧行传输，会影响侧行传输性能。In some embodiments, the fact that the first airspace transmit filter does not meet the sidelink transmission requirements can be understood as that the signal quality of the sidelink data sent by the transmitting end terminal using the first airspace transmit filter is low, which may cause poor reception by the receiving end terminal. If the sidelink data is received, or even if it is received, the demodulation performance of the signal will be affected due to the low signal quality. In short, using the first airspace transmit filter for sidelink transmission will affect the sidelink transmission performance.
在一些实施例中，所述第一终端根据所述第一信息和第一计数器，确定所述第一空域发送滤波器是否失效，包括：In some embodiments, the first terminal determines whether the first airspace transmit filter is invalid according to the first information and the first counter, including:
所述第一终端根据所述第一信息和第一定时器，对所述第一计数器进行计数；The first terminal counts the first counter according to the first information and the first timer;
根据所述第一计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the first counter, determine whether the first airspace transmit filter is invalid.
在一些实施例中，所述第一定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the duration of the first timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
在一些实施例中，发送端终端周期性的发送侧行数据，所述第一定时器的时长可以根据发送端终端发送侧行数据的周期确定，例如，第一定时器的时长大于或等于发送端终端发送侧行数据的周期。In some embodiments, the sender terminal periodically sends the sidelink data, and the duration of the first timer can be determined according to the cycle of sending the sidelink data by the sender terminal, for example, the duration of the first timer is greater than or equal to the sending Period for the end-terminal to send sideline data.
在一些实施例中，发送端终端在第七定时器失效的情况下发送侧行数据，所述第一定时器的时长可以根据所述第七定时器的时长确定。In some embodiments, the sending terminal sends the sidelink data when the seventh timer expires, and the duration of the first timer may be determined according to the duration of the seventh timer.
可选地，所述第七定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。因此，在空域发送滤波器未失效的情况下，在第一定时器的时长内，接收端终端能够接收到发送端终端发送的侧行数据，或者，能够接收到测量结果满足预设条件的侧行数据。因此，接收端终端可以根据第一定时器的时长内，侧行数据的接收情况和/或侧行数据的测量结果，判定空域发送滤波器是否失效。Optionally, the duration of the seventh timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal. Therefore, in the case that the airspace transmission filter is not invalid, within the duration of the first timer, the receiving terminal can receive the side data sent by the transmitting terminal, or can receive the side line data whose measurement result satisfies the preset condition. row data. Therefore, the receiving terminal may determine whether the airspace transmission filter is invalid according to the receiving situation of the sidelink data and/or the measurement result of the sidelink data within the duration of the first timer.
在一些实现方式中，若所述第一定时器失效，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将所述第一计数器的计数值加一。In some implementations, if the first timer expires and the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter, the value of the first counter is set to The count value is incremented by one.
在一些实现方式中，若在所述第一定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第一门限，将所述第一计数器的计数值加一。In some implementations, if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires, but the sidelink data If the measurement result is less than the first threshold, add one to the count value of the first counter.
若第一定时器超时或失效，第一终端没有接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，或者，接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，但是侧行数据的测量结果小于第一门限，表明第二终端使用所述第一空域发送滤波器发送的信号能量非常低，此情况下，该第一空域发送滤波器已经难以满足侧行传输需求了，因此，可以将第一计数器加一，即将第一空域发送滤波器不满足侧行传输需求的次数加一。If the first timer expires or fails, the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmission filter, or receives the data sent by the second terminal using the first airspace transmission filter. sidelink data, but the measurement result of the sidelink data is less than the first threshold, indicating that the energy of the signal sent by the second terminal using the first airspace transmit filter is very low. In this case, the first airspace transmit filter is already difficult to The requirement for sidelink transmission is met. Therefore, the first counter may be increased by one, that is, the number of times the first airspace transmit filter fails to meet the requirement for sidelink transmission is increased by one.
应理解，第一终端没有接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，或者，接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，但是侧行数据的测量结果小于第一门 限，指的是第一终端在第一定时器失效或超时前没有接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，或者，接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，但是侧行数据的测量结果小于第一门限。It should be understood that the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter, or receives the sidelink data sent by the second terminal using the first airspace transmit filter, but The measurement result of the sidelink data is less than the first threshold, which means that the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires or times out, or receives The sidelink data sent by the second terminal using the first spatial transmission filter, but the measurement result of the sidelink data is smaller than the first threshold.
在一些实现方式中，若在所述第一定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第一门限，将所述第一计数器的计数值置零，或者，重置所述第一计数器。In some implementations, if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the first timer expires, and the sidelink data If the measurement result is greater than or equal to the first threshold, the count value of the first counter is set to zero, or the first counter is reset.
当所述第一定时器超时前，所述第一终端接收到所述第二终端发送的侧行数据，并且侧行数据的测量结果大于或等于第一门限，表明第一终端接收到的第二终端的信号能量较高，即该第一空域发送滤波器能够满足侧行传输需求，因此，可以将第一计数器清零，或者，重置第一计数器，即将第一空域发送滤波器不满足侧行传输需求的次数清零。Before the first timer expires, the first terminal receives the sidelink data sent by the second terminal, and the measurement result of the sidelink data is greater than or equal to the first threshold, indicating that the first terminal receives the sidelink data The signal energy of the second terminal is relatively high, that is, the first airspace transmit filter can meet the side transmission requirements, therefore, the first counter can be cleared, or the first counter can be reset, that is, the first airspace transmit filter does not satisfy The number of side travel requests is cleared to zero.
在一些实施例中，所述第一门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the first threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，若所述第一计数器的计数值大于或等于第二门限，确定所述第一空域发送滤波器失效。In some embodiments, if the count value of the first counter is greater than or equal to a second threshold, it is determined that the first airspace transmit filter is invalid.
在一些实施例中，所述第二门限可以为空域发送滤波器连续不满足侧行传输需求的最大次数，或者，***允许的空域发送滤波器连续不满足侧行传输需求的最大次数。当第一计数器的计数值大于或等于第二门限时，表示第一空域发送滤波器不满足侧行传输需求的次数已达到最大次数，此情况下，可以确定所述第一空域发送滤波器失效。In some embodiments, the second threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement. When the count value of the first counter is greater than or equal to the second threshold, it means that the number of times that the first airspace transmit filter does not meet the sidelink transmission requirement has reached the maximum number of times, in this case, it can be determined that the first airspace transmit filter is invalid .
在一些实施例中，所述第二门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the second threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
实施例1-1：Example 1-1:
所述第一终端在接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于第一门限的情况下，将所述第一定时器置为零，或者重置所述第一定时器。When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than a first threshold, the first terminal sends the first The timer is set to zero, or the first timer is reset.
即在该实施例1-1中，第一终端认为接收到测量结果大于第一门限的侧行数据是一次有效传输，在接收到一次有效传输的情况下，将第一定时器置零，或者重置所述第一定时器，在第一定时器的时长内，等待第二终端的下一次有效传输。That is, in this embodiment 1-1, the first terminal considers that receiving the sidelink data whose measurement result is greater than the first threshold is a valid transmission, and in the case of receiving a valid transmission, sets the first timer to zero, or Reset the first timer, and wait for the next effective transmission of the second terminal within the duration of the first timer.
对应地，第一终端认为没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，或者，接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第一门限是一次无效传输。Correspondingly, the first terminal considers that it has not received the sidelink data sent by the second terminal using the first airspace transmit filter, or receives the data sent by the second terminal using the first airspace transmit filter. Side data, but the measurement result of the side data is less than the first threshold is an invalid transmission.
实施例1-2：Embodiment 1-2:
所述第一终端在接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，将所述第一定时器置为零，或者重置所述第一定时器。When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, set the first timer to zero, or reset the first timing device.
即在该实施例1-2中，第一终端认为接收到侧行数据即为一次有效传输，在接收到侧行数据的情况下，将第一定时器置零，或者重置所述第一定时器，在第一定时器的时长内，等待第二终端的下一次侧行传输。That is, in this embodiment 1-2, the first terminal considers that receiving the side data is a valid transmission, and in the case of receiving the side data, it sets the first timer to zero, or resets the first timer. The timer waits for the next sidelink transmission of the second terminal within the duration of the first timer.
对应地，第一终端认为没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，是一次无效传输。Correspondingly, the first terminal considers that it has not received the sidelink data sent by the second terminal using the first airspace transmit filter, and it is an invalid transmission.
结合图14和图15所示的具体示例，说明第一定时器和第一计数器的工作原理，其中，图14中的第一定时器的重启条件基于实施例1-1，图15中的第一定时器的重启条件基于实施例1-2。In conjunction with the specific examples shown in Figure 14 and Figure 15, the working principles of the first timer and the first counter are described, wherein the restart condition of the first timer in Figure 14 is based on embodiment 1-1, and the first timer in Figure 15 The restart condition of a timer is based on Embodiment 1-2.
具体地，如图14所示，接收端终端在时隙a接收到发送端终端发送的侧行数据，并且针对该侧行数据的参考信号的测量结果大于第一门限(例如RSRP>Thd1)，此情况下，接收端终端启动第一定时器，并且重置第一计数器，即counter＝0；在第一定时器失效前，又接收到侧行数据，并且测量结果大于第一门限，则重启第一定时器并重置counter为0；在下一次第一定时器失效前，没有接收到发送端终端发送的侧行数据，则counter加1，重启第一定时器；在第一定时器失效前，在时隙c接收到发送端终端发送的侧行数据，但是测量结果小于第一门限，不会触发重启第一定时器；在第一定时器失效时，counter加1，并且重启第一定时器；在下一次第一定时器失效前，在时隙d接收到侧行数据，并且测量结果大于第一门限，则重启第一定时器，并重置counter＝0。在上述过程中，只有当counter的值大于或等于第二门限时，才会判定波束失效。Specifically, as shown in FIG. 14, the receiving terminal receives the sidelink data sent by the transmitting terminal in time slot a, and the measurement result of the reference signal for the sidelink data is greater than the first threshold (for example, RSRP>Thd1), In this case, the receiving terminal starts the first timer and resets the first counter, that is, counter=0; before the first timer expires, it receives side data and the measurement result is greater than the first threshold, then restarts The first timer and reset the counter to 0; before the next first timer expires, if the sideline data sent by the sender terminal is not received, the counter is incremented by 1, and the first timer is restarted; before the first timer expires , in time slot c, the sidelink data sent by the sending terminal is received, but the measurement result is less than the first threshold, and the restart of the first timer will not be triggered; when the first timer expires, the counter is incremented by 1, and the first timer is restarted before the next first timer expires, if the sidelink data is received in time slot d, and the measurement result is greater than the first threshold, restart the first timer and reset counter=0. In the above process, only when the value of counter is greater than or equal to the second threshold, it will be determined that the beam is invalid.
与图14不同的是，在图15中，当接收端终端在时隙c接收到侧行数据时，虽然该侧行数据的测量结果小于第一门限，接收端终端仍会重启第一定时器，并且将第一计数器加1。The difference from FIG. 14 is that in FIG. 15, when the receiving terminal receives sidelink data in time slot c, although the measurement result of the sidelink data is less than the first threshold, the receiving terminal will restart the first timer , and increment the first counter by 1.
实施例2：Example 2:
在本申请另一些实施例中，所述S202包括：In other embodiments of the present application, the S202 includes:
第一终端的高层根据所述第一终端的底层上报的所述第一指示信息，对第二计数器进行计数；The upper layer of the first terminal counts the second counter according to the first indication information reported by the lower layer of the first terminal;
根据所述第二计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the second counter, determine whether the first airspace transmit filter is invalid.
可选地，所述第二计数器可以用于统计第一空域发送滤波器不满足侧行传输需求的次数。Optionally, the second counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
其中，所述第一空域发送滤波器不满足侧行传输需求的含义参考实施例1的相关描述，为了简洁，这里不再赘述。Wherein, the meaning that the first airspace transmission filter does not meet the sidelink transmission requirement refers to the relevant description in Embodiment 1, and for the sake of brevity, details are not repeated here.
应理解，本申请实施例中的终端设备的底层可以指物理层(或称，层1)，高层可以指物理层之上的层，例如媒体接入控制(Media Access Control，MAC)层(或称，层2)或无线资源控制(Radio Resource Control，RRC)层(或称，层3)。It should be understood that the bottom layer of the terminal device in the embodiment of the present application may refer to the physical layer (or layer 1), and the high layer may refer to a layer above the physical layer, such as a media access control (Media Access Control, MAC) layer (or layer 1). Called, layer 2) or radio resource control (Radio Resource Control, RRC) layer (or called, layer 3).
在一些实施例中，空域发送滤波器是否发生失效实例可以是终端设备的底层检测的，终端设备的底层检测到发生空域发送滤波器失效实例之后，可以向终端设备的高层上报第一指示信息，从而终端设备的高层可以根据该第一指示信息确定空域发送滤波器是否失效。例如，终端设备的高层可以根据底层连续上报第一指示信息的次数，确定空域发送滤波器是否失效。In some embodiments, the bottom layer of the terminal device detects whether the airspace transmit filter fails. After the bottom layer of the terminal device detects that the airspace transmit filter fails, it can report the first indication information to the high layer of the terminal device. Therefore, the high layer of the terminal device can determine whether the airspace transmission filter is invalid according to the first indication information. For example, the high layer of the terminal device may determine whether the airspace transmission filter is invalid according to the number of times the bottom layer continuously reports the first indication information.
在一些实施例中，所述第一终端的高层可以在接收到所述第一终端的底层发送的所述第一指示信息的情况下，将所述第二计数器的计数值加一。In some embodiments, the upper layer of the first terminal may add one to the count value of the second counter when receiving the first indication information sent by the lower layer of the first terminal.
在一些实施例中，所述第一终端的底层可以根据所述第一信息和第二定时器，确定是否向高层发送所述第一指示信息。In some embodiments, the bottom layer of the first terminal may determine whether to send the first indication information to a high layer according to the first information and the second timer.
实现方式1：所述第一终端的底层在满足以下任一条件的情况下，确定向所述第一终端的高层发送所述第一指示信息：Implementation 1: The bottom layer of the first terminal determines to send the first indication information to the high layer of the first terminal when any of the following conditions is met:
若第二定时器失效，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据；If the second timer expires, the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter;
在所述第二定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限。Before the second timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold .
实现方式2：所述第一终端的底层根据所述第一信息和所述第二定时器，对第三计数器进行计数，进一步根据所述第三计数器的计数值，确定是否向所述第一终端的高层发送所述第一指示信息。Implementation mode 2: the bottom layer of the first terminal counts a third counter according to the first information and the second timer, and further determines whether to send the information to the first terminal according to the count value of the third counter A higher layer of the terminal sends the first indication information.
在一些实现方式中，若第二定时器失效，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将第三计数器的计数值加一。In some implementations, if the second timer fails, the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter, and adds one to the count value of the third counter .
在一些实现方式中，若在第二定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限，将所述第三计数器的计数值加一。In some implementations, if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the second timer expires, but the measurement of the sidelink data If the result is less than the third threshold, add one to the count value of the third counter.
在一些实现方式中，若在所述第二定时器失效前，所述第一终端接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第三门限，将所述第三计数器的计数值置零，或者，重置所述第三计数器。In some implementations, if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter before the second timer expires, and the measurement of the sidelink data If the result is greater than or equal to the third threshold, set the count value of the third counter to zero, or reset the third counter.
在一些实施例中，所述第三门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the third threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，所述第三门限和实施例1中的第一门限相同。In some embodiments, the third threshold is the same as the first threshold in Embodiment 1.
在一些实施例中，在所述第三计数器的计数值大于或等于第四门限的情况下，所述第一终端的底层向所述第一终端的高层发送所述第一指示信息。In some embodiments, when the count value of the third counter is greater than or equal to a fourth threshold, the bottom layer of the first terminal sends the first indication information to the high layer of the first terminal.
在一些实施例中，所述第四门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the fourth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
综上，对于实现方式1，第一终端的底层在发生一次无效传输的情况下，即上报第一指示信息，对于实现方式2，第一终端的底层在连续发生K次无效传输的情况下，才上报第一指示信息，其中，K大于或等于第四门限。这里的无效传输可以包括未接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，和/或，接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，但是侧行数据的测量结果小于第三门限。To sum up, for implementation 1, the bottom layer of the first terminal reports the first indication information when an invalid transmission occurs once, and for implementation 2, when the bottom layer of the first terminal occurs K consecutive invalid transmissions, Only when the first indication information is reported, K is greater than or equal to the fourth threshold. The invalid transmission here may include not receiving the sidelink data sent by the second terminal using the first spatial transmission filter, and/or receiving the sidelink data sent by the second terminal using the first spatial transmission filter , but the measurement result of the side row data is smaller than the third threshold.
换言之，第一终端的底层可以在第一空域发送滤波器不满足侧行传输条件时，即向高层上报第一指示信息，或者，也可以在第一空域发送滤波器不满足侧行传输条件的次数达到第四门限时，再向高层上报第一指示信息。In other words, the bottom layer of the first terminal may report the first indication information to the upper layer when the first airspace transmission filter does not meet the sidelink transmission condition, or may also report the first indication information to the upper layer when the first airspace transmission filter does not meet the sidelink transmission condition. When the number of times reaches the fourth threshold, the first indication information is reported to the higher level.
实施例2-1：在接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于第三门限的情况下，所述第一终端的底层将所述第二定时器置为零，或者，重置所述第二定时器。Embodiment 2-1: When receiving the sidelink data sent by the second terminal using the first spatial transmission filter, and the measurement result of the sidelink data is greater than or equal to a third threshold, the The bottom layer of the first terminal sets the second timer to zero, or resets the second timer.
在该实施例中，第一终端的底层认为接收到测量结果大于或等于第三门限的侧行数据是一次有效传输，在接收到一次有效传输的情况下，将第二定时器置零，或者重置所述第二定时器，在第二定时 器的时长内，等待第二终端的下一次有效传输。In this embodiment, the bottom layer of the first terminal considers that receiving the sidelink data whose measurement result is greater than or equal to the third threshold is a valid transmission, and when a valid transmission is received, the second timer is set to zero, or Reset the second timer, and wait for the next effective transmission of the second terminal within the duration of the second timer.
对应地，第一终端的底层认为没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，或者，接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第一门限是一次无效传输。Correspondingly, the bottom layer of the first terminal considers that the sidelink data sent by the second terminal using the first airspace transmit filter has not been received, or that the second terminal receives the data sent by the second terminal using the first airspace transmit filter The transmitted side data, but the measurement result of the side data is less than the first threshold is an invalid transmission.
实施例2-2：在所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，所述第一终端的底层将所述第二定时器置为零，或者重置所述第二定时器。Embodiment 2-2: When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, the bottom layer of the first terminal sets the second timing timer to zero, or reset the second timer.
在该实施例中，第一终端的底层认为接收到侧行数据即为一次有效传输，在接收到侧行数据的情况下，将第二定时器置零，或者重置所述第二定时器，在第二定时器的时长内，等待第二终端的下一次侧行传输。In this embodiment, the bottom layer of the first terminal considers that the reception of the side data is a valid transmission, and when the side data is received, the second timer is set to zero, or the second timer is reset , within the duration of the second timer, waiting for the next sidelink transmission of the second terminal.
对应地，第一终端的底层认为没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据是一次无效传输。Correspondingly, the bottom layer of the first terminal considers that failure to receive the sidelink data sent by the second terminal using the first airspace transmit filter is an invalid transmission.
在一些实施例中，所述第二定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the duration of the second timer is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，所述第二定时器和实施例1中的所述第一定时器为同一定时器。In some embodiments, the second timer and the first timer in Embodiment 1 are the same timer.
在一些实施例中，所述第一终端的高层还维护或管理第三定时器。In some embodiments, the high layer of the first terminal also maintains or manages a third timer.
在一些实现方式中，在接收到所述第一终端的底层的第一指示信息的情况下，所述第一终端的高层重置或重启第三定时器。In some implementation manners, upon receiving the first indication information from the bottom layer of the first terminal, the high layer of the first terminal resets or restarts the third timer.
在一些实现方式中，若所述第三定时器失效，所述第一终端的高层未接收到所述第一终端的底层发送的第一指示信息，将所述第二计数器的计数值置零，或者重置所述第二计数器。In some implementations, if the third timer fails, the upper layer of the first terminal does not receive the first indication information sent by the lower layer of the first terminal, and resets the count value of the second counter to zero , or reset the second counter.
在第三定时器超时或失效前，第一终端的高层未收到底层上报的第一指示信息，表示第一空域发送滤波器满足侧行传输条件，或者，使用所述第一空域发送滤波器进行的侧行传输为有效传输，因此，可以将第二计数器置零，或者重置所述第二计数器。Before the third timer expires or expires, the upper layer of the first terminal does not receive the first indication information reported by the lower layer, indicating that the first airspace transmission filter meets the sidelink transmission condition, or the first airspace transmission filter is used The performed sideline transfer is a valid transfer, therefore, the second counter can be set to zero, or the second counter can be reset.
在一些实施例中，所述第三定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the duration of the third timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
在一些实施例中，在所述第二计数器的计数值大于或等于第五门限的情况下，所述第一终端的高层确定所述第一空域发送滤波器失效。In some embodiments, when the count value of the second counter is greater than or equal to the fifth threshold, the high layer of the first terminal determines that the first airspace transmit filter is invalid.
在一些实施例中，所述第五门限可以为空域发送滤波器连续不满足侧行传输需求的最大次数，或者，***允许的空域发送滤波器连续不满足侧行传输需求的最大次数。当第二计数器的计数值大于或等于第五门限时，表示第一空域发送滤波器不满足侧行传输需求的次数已达到最大次数，此情况下，可以确定第一空域发送滤波器失效。In some embodiments, the fifth threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement. When the count value of the second counter is greater than or equal to the fifth threshold, it indicates that the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement has reached the maximum number of times. In this case, it may be determined that the first airspace transmit filter is invalid.
在一些实施例中，所述第五门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the fifth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，所述第五门限和实施例1中的第二门限相同。In some embodiments, the fifth threshold is the same as the second threshold in Embodiment 1.
实施例3：Example 3:
在本申请又一些实施例中，S202可以包括：In some other embodiments of the present application, S202 may include:
所述第一终端根据所述第一信息，对第四计数器进行计数；The first terminal counts a fourth counter according to the first information;
根据所述第四计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the fourth counter, determine whether the first airspace transmit filter is invalid.
可选地，所述第四计数器可以用于统计第一空域发送滤波器不满足侧行传输需求的次数。Optionally, the fourth counter may be used to count the number of times that the first airspace transmit filter fails to meet the sidelink transmission requirement.
在一些实现方式中，在所述侧行数据的测量结果小于第六门限的情况下，将所述第四计数器的计数值加一。In some implementation manners, when the measurement result of the side row data is less than the sixth threshold, add one to the count value of the fourth counter.
当第一终端接收到第二终端发送的侧行数据，但是侧行数据的测量结果小于第六门限时，表明第一终端接收到的第二终端的信号能量非常低，该第一空域发送滤波器已经难以满足侧行传输需求了，因此，可以将第四计数器的计数值加一，即将第一空域发送滤波器不满足侧行传输需求的次数加一。When the first terminal receives the side data sent by the second terminal, but the measurement result of the side data is less than the sixth threshold, it indicates that the signal energy of the second terminal received by the first terminal is very low, and the first airspace transmission filter Therefore, the count value of the fourth counter can be increased by one, that is, the number of times that the first airspace transmit filter fails to meet the side transmission requirement is increased by one.
在另一些实现方式中，在所述侧行数据的测量结果大于或等于第六门限的情况下，将所述第四计数器的计数值置零，或者重置所述第四计数器。In some other implementation manners, when the measurement result of the side row data is greater than or equal to the sixth threshold, the count value of the fourth counter is set to zero, or the fourth counter is reset.
当第一终端接收到第二终端发送的侧行数据，并且侧行数据的测量结果大于或等于第六门限，表明第一终端接收到的第二终端的信号能量较高，该第一空域发送滤波器能够满足侧行传输需求，因此，可以将第四计数器的计数值清零，或者，重置第四计数器，即将第一空域发送滤波器不满足侧行传输需求的次数清零。When the first terminal receives the side data sent by the second terminal, and the measurement result of the side data is greater than or equal to the sixth threshold, it indicates that the signal energy of the second terminal received by the first terminal is relatively high, and the first airspace transmission The filter can meet the side transmission requirement, therefore, the count value of the fourth counter can be cleared, or the fourth counter can be reset, that is, the number of times that the first airspace transmission filter does not meet the side transmission requirement can be cleared.
在一些实施例中，所述第六门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the sixth threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，所述第六门限和实施例1中的第一门限相同。In some embodiments, the sixth threshold is the same as the first threshold in Embodiment 1.
在一些实施例中，若所述第四计数器的计数值大于或等于第七门限，确定所述第一空域发送滤波器失效。In some embodiments, if the count value of the fourth counter is greater than or equal to a seventh threshold, it is determined that the first airspace transmit filter is invalid.
在一些实施例中，所述第七门限可以为空域发送滤波器连续不满足侧行传输需求的最大次数，或者，***允许的空域发送滤波器连续不满足侧行传输需求的最大次数。当第四计数器的计数值大于或等于第七门限时，表示第一空域发送滤波器不满足侧行传输需求的次数已达到最大次数，此情况下，可以确定第一空域发送滤波器失效。In some embodiments, the seventh threshold may be the maximum number of consecutive times that the airspace transmit filter fails to meet the sidelink transmission requirement, or the maximum number of consecutive times that the system allows the airspace transmit filter to fail to meet the sidelink transmission requirement. When the count value of the fourth counter is greater than or equal to the seventh threshold, it indicates that the number of times the first airspace transmit filter fails to meet the sidelink transmission requirement has reached the maximum number of times. In this case, it can be determined that the first airspace transmit filter is invalid.
在一些实施例中，所述第七门限是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。In some embodiments, the seventh threshold is predefined, or configured by a network device, or determined by the first terminal, or indicated by the second terminal.
在一些实施例中，第七门限与实施例1中的第二门限相同。In some embodiments, the seventh threshold is the same as the second threshold in Embodiment 1.
实施例4：Example 4:
在本申请又一些实施例中，所述第一终端根据所述第一终端和第二终端之间的无线链路是否失效，确定第一空域发送滤波器是否失效。In still some embodiments of the present application, the first terminal determines whether the first airspace transmission filter is invalid according to whether the wireless link between the first terminal and the second terminal is invalid.
例如，若第一终端和第二终端之间的无线链路失效，确定第一空域发送滤波器失效。For example, if the wireless link between the first terminal and the second terminal fails, it is determined that the first airspace transmission filter fails.
又例如，若第一终端和第二终端之间的无线链路未失效，确定第一空域发送滤波器未失效，或者，可以结合前述实施例1-实施例3中的任一实施例确定第一空域发送滤波器失效。For another example, if the wireless link between the first terminal and the second terminal does not fail, it is determined that the first airspace transmission filter is not failed, or, it may be determined in combination with any of the foregoing Embodiments 1-3. A spatial domain transmit filter is disabled.
在本申请一些实施例中，S202可以包括：In some embodiments of this application, S202 may include:
所述第一终端根据所述第一信息和第四定时器，确定所述第一空域发送滤波器是否失效。The first terminal determines whether the first airspace transmit filter is invalid according to the first information and the fourth timer.
在一些实施例中，发送端终端周期性的发送侧行数据，所述第四定时器的时长可以根据发送端终端发送侧行数据的周期确定，例如，第四定时器的时长等于发送端终端发送侧行数据的周期，或第四定时器的时长等于发送端终端发送侧行数据的周期的整数倍。In some embodiments, the sender terminal periodically sends the sidelink data, and the duration of the fourth timer can be determined according to the cycle of sending the sidelink data by the sender terminal, for example, the duration of the fourth timer is equal to that of the sender terminal The period for sending the sidelink data, or the duration of the fourth timer is equal to an integer multiple of the period for sending the sidelink data by the sending terminal.
在一些实施例中，发送端终端在第八定时器失效的情况下发送侧行数据，所述第四定时器的时长可以根据所述第八定时器的时长确定。In some embodiments, the sending terminal sends the sidelink data when the eighth timer expires, and the duration of the fourth timer may be determined according to the duration of the eighth timer.
例如，第四定时器的时长等于第Y定时器的时长，或第四定时器的时长等于第八定时器的时长的整数倍。For example, the duration of the fourth timer is equal to the duration of the Yth timer, or the duration of the fourth timer is equal to an integer multiple of the duration of the eighth timer.
可选地，所述第八定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者是所述第二终端指示的。Optionally, the duration of the eighth timer is predefined, or is configured by a network device, or is determined by the first terminal, or is indicated by the second terminal.
在一些实施例中，所述第四定时器为保活定时器。In some embodiments, the fourth timer is a keep-alive timer.
在一些实施例中，所述第四定时器的时长根据最大非激活周期(maximum inactivity period)确定。若发送端终端和接收端终端之间的无线链路未失效，在第四定时器失效前，接收端终端会接收到发送端终端发送的侧行数据。In some embodiments, the duration of the fourth timer is determined according to a maximum inactivity period (maximum inactivity period). If the wireless link between the transmitting terminal and the receiving terminal does not fail, the receiving terminal will receive the sidelink data sent by the transmitting terminal before the fourth timer expires.
在一些实施例中，所述侧行数据可以包括：DIRECT LINK KEEPALIVE REQUEST message。In some embodiments, the sideline data may include: DIRECT LINK KEEPALIVE REQUEST message.
在一些实施例中，所述DIRECT LINK KEEPALIVE REQUEST message包括最大非激活周期(maximum inactivity period)。In some embodiments, the DIRECT LINK KEEPALIVE REQUEST message includes a maximum inactivity period.
在一些实施例中，若在所述第四定时器失效前，所述第一终端接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器未失效。In some embodiments, if the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter device has not failed.
在第四定时器失效前，接收端终端接收到发送端终端发送的侧行数据，表示发送端终端和接收端终端之间的无线链路未失效，此情况下，可以确定第一空域发送滤波器未失效，或者，可以结合前述实施例1-实施例3中所述的方式确定第一空域发送滤波器是否失效。Before the fourth timer expires, the receiving terminal receives the sidelink data sent by the transmitting terminal, indicating that the wireless link between the transmitting terminal and the receiving terminal has not failed. In this case, it can be determined that the first airspace transmission filter Alternatively, it may be determined whether the first airspace transmit filter is invalid in combination with the manner described in Embodiment 1 to Embodiment 3 above.
在另一些实施例中，若在所述第四定时器失效前，所述第一终端未接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器失效。In other embodiments, if the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter before the fourth timer expires, determine that the first airspace Send filter failed.
在第四定时器失效前，接收端终端未接收到发送端终端发送的侧行数据，表示发送端终端和接收端终端之间的无线链路失效，此情况下，可以确定第一空域发送滤波器失效。Before the fourth timer expires, the receiving terminal does not receive the sidelink data sent by the transmitting terminal, indicating that the wireless link between the transmitting terminal and the receiving terminal fails. In this case, the first airspace transmission filter can be determined device fails.
在一些实施例中，所述方法200还包括：In some embodiments, the method 200 also includes:
若所述第四定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，则所述第一终端向所述第二终端发送针对所述侧行数据的响应，并启动或重启所述第四定时器。If the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, then the first terminal sends to the second terminal In response to the sidestream data, start or restart the fourth timer.
在一些实施例中，所述针对所述侧行数据的响应可以包括：In some embodiments, the response to the lateral data may include:
直通链路保活响应消息(DIRECT LINK KEEPALIVE RESPONSE message)。DIRECT LINK KEEPALIVE RESPONSE message.
在一些实施例中，所述启动或重启所述第四定时器，包括：In some embodiments, the starting or restarting the fourth timer includes:
所述第一终端停止所述第四定时器，和/或启动或重启所述第四定时器，其中，所述第四定时器的值根据所述第二终端发送的所述侧行数据中包括的指示信息确定。The first terminal stops the fourth timer, and/or starts or restarts the fourth timer, wherein the value of the fourth timer is according to the sidelink data sent by the second terminal The included instructions are OK.
例如，第一终端在接收到DIRECT LINK KEEPALIVE RESPONSE message，并且DIRECT LINK  KEEPALIVE RESPONSE message中包括maximum inactivity period的情况下，第一终端停止第四定时器，并启动或重启该第四定时器，将第四定时器的值设置为该maximum inactivity period。For example, when the first terminal receives the DIRECT LINK KEEPALIVE RESPONSE message, and the DIRECT LINK KEEPALIVE RESPONSE message includes the maximum inactivity period, the first terminal stops the fourth timer, and starts or restarts the fourth timer, and the first terminal The value of the four timers is set to the maximum inactivity period.
在本申请一些实施例中，发送端终端维护第五定时器，第六定时器和第五计数器。In some embodiments of the present application, the sending terminal maintains the fifth timer, the sixth timer and the fifth counter.
在一些实施例中，该第五定时器，第六定时器和第五计数器用于PC5单播链路保活进程(PC5unicast link keep-alive procedure)。In some embodiments, the fifth timer, the sixth timer and the fifth counter are used for a PC5 unicast link keep-alive procedure (PC5 unicast link keep-alive procedure).
在一些实施例中，所述第五定时器和所述第六定时器或称保活定时器，所述第五计数器或称保活计数器。In some embodiments, the fifth timer and the sixth timer are called keep-alive timers, and the fifth counter is called a keep-alive counter.
在一些实施例中，所述第五计数器用于统计发送端终端连续向接收端终端发送或重传侧行数据的次数。In some embodiments, the fifth counter is used to count the number of times that the sending terminal continuously sends or retransmits sidelink data to the receiving terminal.
可选地，在发送端终端和接收端终端之间的PC5单播链路建立之后，发送端终端将第五计数器的计数值设置为0。Optionally, after the PC5 unicast link between the transmitting terminal and the receiving terminal is established, the transmitting terminal sets the count value of the fifth counter to 0.
在一些实施例中，所述第六定时器用于周期性的触发PC5单播链路保活进程。In some embodiments, the sixth timer is used to periodically trigger the PC5 unicast link keep-alive process.
在一些实施例中，所述第六定时器的时长根据最大非激活周期的值确定，或者所述最大非激活周期的值根据所述第六定时器的时长确定。例如，所述最大非激活周期的值大于所述第六定时器的时长。In some embodiments, the duration of the sixth timer is determined according to the value of the maximum inactive period, or the value of the maximum inactive period is determined according to the duration of the sixth timer. For example, the value of the maximum inactive period is greater than the duration of the sixth timer.
例如，发送端终端可以周期性的发送侧行数据，并接收接收端终端回复的针对所述侧行数据的响应，以确定发送端终端和接收端终端之间的PC5单播链路是否存活，或者说，是否失效。For example, the sending terminal may periodically send sidelink data, and receive a response to the sidelink data returned by the receiving terminal to determine whether the PC5 unicast link between the sending terminal and the receiving terminal is alive, Or, is it invalid.
又例如，发送端终端在所述第六定时器失效的情况下发送侧行数据，并接收接收端终端回复的针对所述侧行数据的响应，以确定发送端终端和接收端终端之间的PC5单播链路是否存活，或者说，是否失效。For another example, the sending terminal sends the sidelink data when the sixth timer expires, and receives a response to the sidelink data returned by the receiving terminal, so as to determine the relationship between the sending terminal and the receiving terminal. Whether the PC5 unicast link is alive, or in other words, whether it is invalid.
在一些实施例中，所述第五定时器的时长为发送端终端等待接收端终端回复针对侧行数据的响应的最大等待时长。In some embodiments, the duration of the fifth timer is the maximum waiting duration for the sending terminal to wait for the receiving terminal to reply with a response to the sidelink data.
结合图16，说明第五定时器和第六定时器的工作原理。With reference to FIG. 16 , the working principles of the fifth timer and the sixth timer are described.
S210，发送端终端在使用所述第一空域发送滤波器向接收端终端发送侧行数据的情况下，启动或重启第五定时器，停止第六定时器。S210. When the transmitting terminal uses the first airspace transmission filter to transmit sidelink data to the receiving terminal, start or restart the fifth timer, and stop the sixth timer.
S220，接收端终端向发送端终端发送针对所述侧行数据的响应。S220, the receiving terminal sends a response to the sidelink data to the transmitting terminal.
进一步地，若所述发送端终端接收到所述侧行数据的响应，停止第五定时器，重启或启动第六定时器。Further, if the sending terminal receives the response of the sidelink data, the fifth timer is stopped, and the sixth timer is restarted or started.
可选地，若所述第五定时器失效，所述接收端终端使用所述第一空域发送滤波器向发送端终端重传所述侧行数据。Optionally, if the fifth timer expires, the receiving terminal uses the first airspace transmission filter to retransmit the sidelink data to the transmitting terminal.
可选地，在接收端终端使用所述第一空域发送滤波器重传侧行数据时，接收端终端启动或重启该第五定时器，并且将第五计数器的计算值加一。Optionally, when the receiving terminal uses the first airspace transmission filter to retransmit the sidelink data, the receiving terminal starts or restarts the fifth timer, and adds one to the calculated value of the fifth counter.
可选的，在接收端终端使用所述第一空域发送滤波器重传侧行数据时，停止第六定时器。Optionally, when the terminal at the receiving end retransmits the sidelink data using the first airspace transmission filter, stop the sixth timer.
在本申请一些实施例中，所述方法200还包括：In some embodiments of the present application, the method 200 further includes:
若所述第六定时器失效，所述第二终端向所述第一终端发送所述侧行数据。If the sixth timer expires, the second terminal sends the sidelink data to the first terminal.
例如，在发送端终端向接收端终端发送侧行数据的时间间隔达到最大非激活周期时，发送端终端再次向接收端终端发送侧行数据，以确定二者之间的链路是否存活。For example, when the time interval for sending sidelink data from the sending terminal to the receiving terminal reaches the maximum inactive period, the sending terminal sends sidelink data to the receiving terminal again to determine whether the link between the two is alive.
综上，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果，或测量结果，或者，发送端终端和接收端终端之间的无线链路状况确定空域发送滤波器是否失效。In summary, the receiving terminal can determine the airspace transmission filter according to the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, or the wireless link status between the transmitting terminal and the receiving terminal Is it invalid.
在一些实施例中，所述接收端终端可以在空域发送滤波器失效的情况下，确定该空域发送滤波器对应的空域接收滤波器也失效。In some embodiments, the receiving terminal may determine that the spatial receiving filter corresponding to the spatial transmitting filter is also invalid when the spatial transmitting filter is invalid.
在一些实施例中，所述接收端终端可以在空域发送滤波器失效的情况下，确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对失效。In some embodiments, the receiving terminal may determine that the spatial domain filter pair formed by the spatial domain transmission filter and the spatial domain reception filter corresponding to the spatial domain transmission filter is invalid when the spatial domain transmission filter is invalid.
在一些实施例中，接收端终端也可以根据前述实施例中所描述的方式确定空域接收滤波器是否失效，或者，空域滤波器对是否失效。In some embodiments, the receiving terminal may also determine whether the spatial domain receiving filter is invalid or whether the spatial domain filter pair is invalid according to the manner described in the foregoing embodiments.
例如，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果和/或测量结果，确定该空域发送滤波器对应的空域接收滤波器是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For example, the receiving terminal may determine whether the spatial receiving filter corresponding to the spatial transmitting filter is invalid according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the spatial transmitting filter. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
又例如，接收端终端可以根据接收端终端使用空域接收滤波器接收侧行数据的检测结果和/或测量结果确定该空域接收滤波器是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For another example, the receiving terminal may determine whether the spatial receiving filter is invalid according to the detection result and/or measurement result that the receiving terminal uses the spatial receiving filter to receive sidelink data. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
再例如，接收端终端可以根据发送端终端和接收端终端之间的无线链路状况确定空域接收滤波器是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For another example, the receiving terminal may determine whether the airspace receiving filter is invalid according to the status of the wireless link between the transmitting terminal and the receiving terminal. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
例如，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果和/或测量结果，确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For example, the receiving terminal may determine the configuration of the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter according to the detection result and/or measurement result of the sidelink data sent by the transmitting terminal using the spatial transmitting filter. Whether the spatial filter pair is disabled. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
又例如，接收端终端可以根据接收端终端使用空域接收滤波器接收侧行数据的检测结果和/或测量结果确定该空域接收滤波器和与该空域接收滤波器对应的空域发送滤波器构成的空域滤波器对是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For another example, the receiving terminal may determine the spatial domain formed by the spatial receiving filter and the spatial transmitting filter corresponding to the spatial receiving filter according to the detection result and/or measurement result of the receiving terminal using the spatial receiving filter to receive side-link data. Whether the filter pair is invalid. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
再例如，接收端终端可以根据发送端终端和接收端终端之间的无线链路状况确定空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。在本申请一些实施例中，所述方法200还包括：For another example, the receiving terminal may determine whether the spatial filter pair formed by the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter is invalid according to the wireless link status between the transmitting terminal and the receiving terminal. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here. In some embodiments of the present application, the method 200 further includes:
若所述第一终端确定所述第一空域发送滤波器失效，所述第一终端向所述第二终端发送第二指示信息，其中，所述第二指示信息用于指示以下信息中至少一种：If the first terminal determines that the first airspace transmission filter is invalid, the first terminal sends second indication information to the second terminal, where the second indication information is used to indicate at least one of the following information kind:
所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
所述第一空域发送滤波器对应的空域接收滤波器失效；The spatial domain receiving filter corresponding to the first spatial domain transmitting filter is invalid;
所述第一空域发送滤波器和所述第一空域发送滤波器对应的空域接收滤波器构成的空域滤波器对失效；The spatial domain filter pair formed by the first spatial domain transmission filter and the spatial domain reception filter corresponding to the first spatial domain transmission filter is invalid;
所述第二终端执行选取空域发送滤波器过程；The second terminal executes a process of selecting a spatial transmission filter;
所述第二终端使用不同的空域发送滤波器发送多个侧行参考信号。The second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters.
在确定第一空域发送滤波器失效时，接收端终端向发送端终端发送第二指示信息，所述第二指示信息可以用于直接或间接指示所述发送端终端执行空域发送滤波器选取过程，或者，使用新的空域发送滤波器进行侧行传输。When determining that the first airspace transmission filter is invalid, the receiving terminal sends second indication information to the transmitting terminal, where the second indication information may be used to directly or indirectly instruct the transmitting terminal to perform an airspace transmission filter selection process, Alternatively, use the new spatial transmit filter for sidelink transmissions.
作为一个示例，所述第二指示信息用于指示第一空域发送滤波器失效，或者所述第一空域发送滤波器对应的空域接收滤波器失效，或者，所述第一空域发送滤波器和所述第一空域发送滤波器对应的空域接收滤波器构成的空域滤波器对失效，从而发送端终端可以使用第二空域发送滤波器进行侧行传输，或者，发送端终端执行空域发送滤波器选取过程以选取新的最优空域发送滤波器，或者，发送端终端使用不同的空域发送滤波器发送多个侧行参考信号，所述多个侧行参考信号用于选取新的最优空域发送滤波器。As an example, the second indication information is used to indicate that the first spatial domain transmit filter is invalid, or that the spatial domain receive filter corresponding to the first spatial domain transmit filter is invalid, or that the first spatial domain transmit filter and the The spatial filter pair formed by the spatial receiving filter corresponding to the first spatial transmitting filter is ineffective, so that the transmitting terminal can use the second spatial transmitting filter for sidelink transmission, or the transmitting terminal performs a process of selecting a spatial transmitting filter To select a new optimal spatial domain transmission filter, or, the transmitting terminal uses different spatial domain transmission filters to transmit multiple side reference signals, and the multiple side reference signals are used to select a new optimal spatial domain transmission filter .
作为又一示例，所述第二指示信息用于指示发送端终端执行空域发送滤波器选取过程，从而发送端终端可以执行空域发送滤波器选取过程以选取新的最优空域发送滤波器。As yet another example, the second indication information is used to instruct the transmitting terminal to perform a process of selecting a spatial domain transmission filter, so that the transmitting terminal may perform the process of selecting a spatial domain transmission filter to select a new optimal spatial domain transmission filter.
作为再一示例，所述第二指示信息用于指示所述发送端终端使用不同的空域发送滤波器发送多个侧行参考信号，以选取新的最优空域发送滤波器。As yet another example, the second indication information is used to instruct the transmitting terminal to use different spatial domain transmission filters to transmit multiple sidelink reference signals, so as to select a new optimal spatial domain transmission filter.
可选地，所述第二空域发送滤波器可以是根据接收端终端上报的N个CSI-RS资源确定的。Optionally, the second airspace transmission filter may be determined according to the N CSI-RS resources reported by the terminal at the receiving end.
例如，所述第二空域发送滤波器可以是该N个CSI-RS资源对应的空域发送滤波器中除所述第一空域发送滤波器之外的任一空域发送滤波器。For example, the second spatial transmission filter may be any spatial transmission filter except the first spatial transmission filter among the spatial transmission filters corresponding to the N CSI-RS resources.
又例如，所述第一空域发送滤波器是该N个CSI-RS资源中测量结果最优的CSI-RS资源对应的空域发送滤波器，则所述第二空域发送滤波器可以是N个CSI-RS资源中测量结果次优的CSI-RS资源对应的空域发送滤波器。For another example, the first spatial transmission filter is the spatial transmission filter corresponding to the CSI-RS resource with the best measurement result among the N CSI-RS resources, then the second spatial transmission filter may be N CSI-RS resources - a spatial domain transmission filter corresponding to a CSI-RS resource whose measurement result is suboptimal among the RS resources.
应理解，所述第二指示信息可以通过任一侧行信息或侧行信令发送。作为示例，所述第二指示信息通过以下之一承载：侧行控制信息(Sidelink Control Information，SCI)，媒体接入控制控制元素(Media Access Control Control Element，MAC CE)，PC5-RRC信令。It should be understood that the second indication information may be sent through any sidelink information or sidelink signaling. As an example, the second indication information is carried by one of the following: sidelink control information (Sidelink Control Information, SCI), media access control control element (Media Access Control Control Element, MAC CE), PC5-RRC signaling.
综上，接收端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的检测结果或测量结果，或者，发送端终端和接收端终端之间的无线链路状况确定空域发送滤波器是否失效。进一步地，在空域发送滤波器失效的情况下，接收端终端可以指示发送端终端使用新的空域发送滤波器进行侧行传输，或者执行空域发送滤波器选取过程以选取新的最优空域发送滤波器，从而能够保证侧行传输的可靠性。To sum up, the receiving terminal can determine whether the airspace transmitting filter is based on the detection result or measurement result of the sidelink data sent by the transmitting terminal using the airspace transmitting filter, or the wireless link condition between the transmitting terminal and the receiving terminal. invalidated. Further, when the airspace transmit filter fails, the receiving terminal may instruct the transmitting end terminal to use a new airspace transmit filter for sidelink transmission, or perform an airspace transmit filter selection process to select a new optimal airspace transmit filter device, so as to ensure the reliability of sideline transmission.
图17是根据本申请另一实施例的无线通信的方法300的示意性流程图，如图17所示，该方法300包括如下内容：FIG. 17 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application. As shown in FIG. 17, the method 300 includes the following content:
S310，第二终端使用第一空域发送滤波器向第一终端发送侧行数据；S310. The second terminal uses the first airspace transmit filter to transmit sidelink data to the first terminal;
S320，所述第二终端根据所述侧行数据的反馈结果，或者，所述第二终端根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效。S320. The second terminal determines whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether a response to the sidelink data is received by the second terminal.
在本申请实施例中，该第一终端为接收端终端，该第二终端为发送端终端。In this embodiment of the present application, the first terminal is a receiving terminal, and the second terminal is a transmitting terminal.
在该方法300中，波束失效判断可以是由发送端终端执行的。In the method 300, beam failure judgment may be performed by the transmitting terminal.
在本申请实施例中，空域发送滤波器(spatial domain transmission filter)也可以称为发送波束 (transmission beam)或者空间关系(Spatial relation)或者空间配置(spatial setting)。In this embodiment of the present application, a spatial domain transmission filter may also be referred to as a transmission beam, a spatial relation, or a spatial setting.
在本申请实施例中，空域接收滤波器(spatial domain reception filter)也可以称为接收波束(reception beam)或者空间关系(Spatial relation)或者空间配置(spatial setting)。In this embodiment of the present application, a spatial domain reception filter may also be called a reception beam, a spatial relation, or a spatial setting.
在本申请实施例中，空域发送滤波器和空域接收滤波器统称为空域滤波器，空域发送滤波器也可以称为发送端空域滤波器，空域接收滤波器也可以称为接收端空域滤波器。In this embodiment of the present application, the spatial transmission filter and the spatial reception filter are collectively referred to as a spatial filter, the spatial transmission filter may also be referred to as a transmission end spatial filter, and the spatial reception filter may also be referred to as a reception end spatial filter.
在本申请实施例中，波束失效也可以称为空域滤波器失效，具体可以包括空域发送滤波器失效和/或空域接收滤波器失效。In this embodiment of the present application, beam failure may also be referred to as failure of a spatial domain filter, and may specifically include failure of a spatial transmission filter and/or failure of a spatial reception filter.
在本申请一些实施例中，发送端终端可以根据使用空域发送滤波器发送的侧行数据的反馈结果和/或针对该侧行数据的响应，确定该空域发送滤波器是否失效，和/或，确定与该空域发送滤波器空域对应的空域接收滤波器(即第一空域接收滤波器)是否失效，和/或，确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对是否失效。In some embodiments of the present application, the transmitting terminal may determine whether the airspace transmission filter is invalid according to the feedback result of the sidelink data sent by using the airspace transmission filter and/or the response to the sidelink data, and/or, Determining whether the spatial receiving filter corresponding to the spatial transmitting filter (that is, the first spatial receiving filter) is invalid, and/or determining the composition of the spatial transmitting filter and the spatial receiving filter corresponding to the spatial transmitting filter Whether the spatial domain filter pair is invalid.
即在本申请实施例中，发送端终端可以根据发送端终端使用发送波束发送侧行数据的反馈结果或针对该侧行数据的响应进行发送波束的失效判断，和/或，接收波束的失效判断，和/或，波束对的失效判断。That is, in the embodiment of the present application, the sending terminal can judge the failure of the sending beam according to the feedback result of the sending terminal using the sending beam to send the sidelink data or the response to the sidelink data, and/or the failure judgment of the receiving beam , and/or, the failure judgment of the beam pair.
应理解，本申请的实施例中以第二终端根据所述侧行数据的反馈结果，或者，所述第二终端根据是否接收到针对所述侧行数据的响应，确定空域发送滤波器是否失效为例进行说明，本申请的实施例的方法同样适用于确定接收滤波器是否失效，以及适用于确定空域滤波器对是否失效。It should be understood that in the embodiment of the present application, the second terminal determines whether the airspace transmission filter is invalid according to the feedback result of the sidelink data or whether the second terminal receives a response to the sidelink data For example, the method of the embodiment of the present application is also applicable to determining whether the receiving filter is invalid, and is suitable for determining whether the spatial domain filter pair is invalid.
本申请实施例中的终端设备可以采用波束的方式进行数据的传输，因此，发送端终端需要确定最优的发送波束，接收端终端需要确定最优的接收波束。最优波束的确定方式参考方法200的相关说明，为了简洁，这里不再赘述。The terminal device in the embodiment of the present application may transmit data in a beam manner. Therefore, the transmitting terminal needs to determine an optimal transmitting beam, and the receiving terminal needs to determine an optimal receiving beam. For the method of determining the optimal beam, refer to the relevant description of the method 200, and for the sake of brevity, details are not repeated here.
在本申请一些实施例中，所述侧行数据可以是终端设备之间交互的任意数据，例如，PSSCH，PSCCH，直通链路保活请求消息(DIRECT LINK KEEPALIVE REQUEST message)，直通链路保活响应消息(DIRECT LINK KEEPALIVE RESPONSE message)，PC5信令消息，PC5用户面数据等。In some embodiments of the present application, the sidelink data may be any data exchanged between terminal devices, for example, PSSCH, PSCCH, direct link keep-alive request message (DIRECT LINK KEEPALIVE REQUEST message), direct link keep-alive Response message (DIRECT LINK KEEPALIVE RESPONSE message), PC5 signaling message, PC5 user plane data, etc.
实施例1：所述第二终端根据所述侧行数据的反馈结果，确定所述第一空域发送滤波器是否失效。Embodiment 1: The second terminal determines whether the first airspace transmission filter is invalid according to the feedback result of the sidelink data.
在一些实施例中，在所述侧行数据的反馈结果为以下之一的情况下，所述第二终端确定所述第一空域发送滤波器失效：In some embodiments, when the feedback result of the sidelink data is one of the following, the second terminal determines that the first airspace transmission filter is invalid:
所述第二终端连续检测到K1次非连续传输DTX状态；The second terminal continuously detects K1 discontinuous transmission DTX states;
所述第二终端连续检测到K2次否定确认NACK信息；The second terminal continuously detects K2 negative acknowledgment NACK information;
所述第二终端连续K3次未检测到肯定确认ACK信息；The second terminal does not detect positive confirmation ACK information for K3 consecutive times;
其中，K1、K2、K3为正整数。Wherein, K1, K2, and K3 are positive integers.
在一些实施例中，所述K1、K2、K3是预定义的，或者是网络设备配置的，或者是根据所述第一终端的指示信息确定的，或者是根据所述第二终端的指示信息确定的。In some embodiments, the K1, K2, and K3 are predefined, or are configured by the network device, or are determined according to the indication information of the first terminal, or are determined according to the indication information of the second terminal definite.
在一些实施例中，所述K1、K2、K3可以是相等的，或者，也可以不等的。In some embodiments, the K1, K2, and K3 may be equal or unequal.
在一些实施例中，所述第一终端未检测到ACK信息，可以包括：In some embodiments, the first terminal does not detect ACK information, which may include:
所述第一终端检测到DTX状态和/或NACK信息。即第一终端检测到DTX状态，或者NACK信息，都可以认为是未检测到ACK信息。The first terminal detects DTX status and/or NACK information. That is, when the first terminal detects the DTX state or the NACK information, it can be considered that the ACK information is not detected.
在一些实施例中，所述第二终端连续检测到DTX状态不包括如下情况中的至少之一：In some embodiments, the second terminal continuously detects that the DTX state does not include at least one of the following situations:
情况1：在所述侧行数据对应的反馈信息的优先级低于第二信息的优先级的情况下，所述第二终端在需要发送所述侧行数据对应的反馈信息的时间单元上，优先发送所述第二信息，而没有接收所述侧行数据对应的反馈信息，其中，所述第二信息为上行信息或侧行信息。Case 1: When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the second information, the second terminal needs to send the feedback information corresponding to the sidelink data in the time unit, The second information is sent preferentially without receiving feedback information corresponding to the sidelink data, where the second information is uplink information or sidelink information.
即发送端终端优先发送第二信息，导致未接收第一侧行数据的反馈结果，因此发送端终端检测到DTX不是由于空域发送滤波器失效导致的，故排除此情况。That is, the sending terminal sends the second information preferentially, resulting in not receiving the feedback result of the first sidelink data. Therefore, the sending terminal detects that the DTX is not caused by failure of the airspace transmission filter, so this situation is ruled out.
例如，发送端终端需要在时隙n接收针对第一空域发送滤波器发送的PSSCH的第一PSFCH，但是由于在时隙n，发送端终端还需要发送第二PSFCH，并且第二PSFCH的优先级高于第一PSFCH，则发送端终端会发送第二PSFCH，而不接收第一PSFCH，从而导致发送端终端没有接收到接收端终端发送的第一PSFCH。For example, the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since in time slot n, the transmitting terminal also needs to transmit the second PSFCH, and the priority of the second PSFCH higher than the first PSFCH, the sending terminal will send the second PSFCH instead of receiving the first PSFCH, so that the sending terminal does not receive the first PSFCH sent by the receiving terminal.
又例如，发送端终端需要在时隙n接收针对第一空域发送滤波器发送的PSSCH的第一PSFCH，但是由于在时隙n发送端终端还需要发送物理上行控制信道(Physical Uplink Control Channel，PUCCH)或物理上行共享信道(Physical Uplink Shared Channel，PUSCH)，并且PUCCH或PUSCH的优先级高于第一PSFCH，则发送端终端会发送PUCCH或PUSCH，而不接收第一PSFCH，从而导致发送端终端没有接收到接收端终端发送的第一PSFCH。For another example, the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since the transmitting terminal also needs to transmit a physical uplink control channel (Physical Uplink Control Channel, PUCCH) in time slot n ) or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and the priority of PUCCH or PUSCH is higher than that of the first PSFCH, then the transmitting terminal will send PUCCH or PUSCH instead of receiving the first PSFCH, thus causing the transmitting terminal The first PSFCH sent by the receiving terminal is not received.
情况2：在所述侧行数据对应的反馈信息的优先级低于第三信息的优先级的情况下，所述第二终 端在需要接收所述侧行数据对应的反馈信息的时间单元上，优先接收所述第三信息，而没有接收所述侧行数据的反馈信息，其中，所述第三信息为下行信息或侧行信息。Case 2: When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the third information, the second terminal needs to receive the feedback information corresponding to the sidelink data in the time unit, The third information is received preferentially without receiving the feedback information of the sidelink data, wherein the third information is downlink information or sidelink information.
即发送端终端优先接收第三信息，导致未接收第一侧行数据的反馈结果，因此发送端终端检测到DTX不是由于空域发送滤波器失效导致的，故排除此情况。That is, the sending terminal receives the third information preferentially, resulting in not receiving the feedback result of the first sidelink data. Therefore, the sending terminal detects that the DTX is not caused by failure of the airspace transmission filter, so this situation is ruled out.
例如，发送端终端需要在时隙n接收针对第一空域发送滤波器发送的PSSCH的第一PSFCH，但是由于在时隙n，发送端终端还需要接收物理下行控制信道(Physical Downlink Control Channel，PDCCH)或者物理下行共享信道(Physical Downlink Shared Channel，PDSCH)，并且PDCCH或PDSCH的优先级高于第一PSFCH，则发送端终端会接收PDCCH或PDSCH，而不接收第一PSFCH，从而导致发送端终端没有接收到接收端终端发送的第一PSFCH。For example, the transmitting terminal needs to receive the first PSFCH of the PSSCH transmitted by the first airspace transmission filter in time slot n, but since in time slot n, the transmitting terminal also needs to receive the Physical Downlink Control Channel (PDCCH ) or physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and the priority of PDCCH or PDSCH is higher than the first PSFCH, then the sending end terminal will receive PDCCH or PDSCH, but not the first PSFCH, thus causing the sending end terminal The first PSFCH sent by the receiving terminal is not received.
又例如，发送端终端需要在时隙n接收针对第一空域发送滤波器发送的PSSCH的第一PSFCH，但是由于在时隙n发送端终端还需要接收物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)或物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)，并且PSCCH或PSSCH的优先级高于第一PSFCH，则发送端终端会接收PSCCH或PSSCH，而不接收第一PSFCH，从而导致发送端终端没有接收到接收端终端发送的第一PSFCH。For another example, the transmitting terminal needs to receive the first PSFCH of the PSSCH sent by the first spatial transmission filter in time slot n, but since the transmitting terminal also needs to receive the Physical Sidelink Control Channel (Physical Sidelink Control Channel, PSCCH) or Physical Sidelink Shared Channel (PSSCH), and the priority of PSCCH or PSSCH is higher than that of the first PSFCH, then the transmitting terminal will receive the PSCCH or PSSCH instead of the first PSFCH, thus causing the transmission The end terminal does not receive the first PSFCH sent by the receiving end terminal.
在本申请实施例中，发送端终端激活侧行反馈。即发送端终端需要根据侧行数据的反馈结果，确定是否重传该侧行数据。In the embodiment of the present application, the sending terminal activates the sidelink feedback. That is, the sending terminal needs to determine whether to retransmit the sidelink data according to the feedback result of the sidelink data.
实施例2：所述发送端终端根据发送端终端和接收端终端之间的无线链路是否失效，确定所述第一空域发送滤波器是否失效。Embodiment 2: The transmitting terminal determines whether the first airspace transmission filter is invalid according to whether the wireless link between the transmitting terminal and the receiving terminal fails.
在一些实施例中，发送端终端和接收端终端之间的无线链路是否失效，可以根据发送端终端是否接收到针对所述侧行数据的响应确定。In some embodiments, whether the wireless link between the transmitting terminal and the receiving terminal fails may be determined according to whether the transmitting terminal receives a response to the sidelink data.
在一些实现方式中，所述发送端终端根据是否接收到针对所述侧行数据的响应，对第五计数器进行计数，进一步根据所述第五计数器的计数值，确定所述第一空域发送滤波器是否失效。In some implementation manners, the sending terminal counts a fifth counter according to whether a response to the sidelink data is received, and further determines the first airspace transmission filter according to the count value of the fifth counter. whether the device fails.
在一些实施例中，所述第五计数器用于统计发送端终端连续向接收端终端发送或重传侧行数据的次数。In some embodiments, the fifth counter is used to count the number of times that the sending terminal continuously sends or retransmits sidelink data to the receiving terminal.
可选地，在发送端终端和接收端终端之间的PC5单播链路建立之后，发送端终端将第五计数器的计数值设置为0。Optionally, after the PC5 unicast link between the transmitting terminal and the receiving terminal is established, the transmitting terminal sets the count value of the fifth counter to 0.
在一些实施例中，若所述第五计数器的计数值大于或等于第八门限，发送端终端确定所述第一空域发送滤波器失效。In some embodiments, if the count value of the fifth counter is greater than or equal to the eighth threshold, the transmitting terminal determines that the first airspace transmit filter is invalid.
在一些实施例中，所述第八门限可以为允许的最大重传次数。当第五计数器的计数值大于或等于第八门限时，表示使用第一空域发送滤波器进行侧行传输的次数已达到最大重传次数，此情况下，可以确定第一空域发送滤波器失效。In some embodiments, the eighth threshold may be the maximum number of retransmissions allowed. When the count value of the fifth counter is greater than or equal to the eighth threshold, it indicates that the number of sidelink transmissions using the first airspace transmit filter has reached the maximum number of retransmissions. In this case, it can be determined that the first airspace transmit filter is invalid.
在一些实施例中，所述第二终端根据是否接收到针对所述侧行数据的响应，对第五计数器进行计数，可以包括：In some embodiments, the second terminal counts the fifth counter according to whether a response to the sidelink data is received, which may include:
所述第二终端根据是否接收到针对所述侧行数据的响应和第五定时器，对第五计数器进行计数。The second terminal counts a fifth counter according to whether a response to the sidelink data is received and a fifth timer.
例如，若在所述第五定时器失效前，所述第二终端接收到针对所述侧行数据的响应，将所述第五计数器的计数值置零，或者重置所述第五计数器。For example, if the second terminal receives a response to the sidelink data before the fifth timer expires, the count value of the fifth counter is set to zero, or the fifth counter is reset.
又例如，若在所述第五定时器失效前，所述第二终端未接收到针对所述侧行数据的响应，将所述第五计数器的计数值加一。For another example, if the second terminal does not receive a response to the sidelink data before the fifth timer expires, add one to the count value of the fifth counter.
在本申请一些实施例中，所述方法300还包括：In some embodiments of the present application, the method 300 further includes:
在使用所述第一空域发送滤波器向所述第一终端发送侧行数据的情况下，所述第二终端启动或重启第五定时器，停止第六定时器。When using the first airspace transmit filter to transmit sidelink data to the first terminal, the second terminal starts or restarts the fifth timer, and stops the sixth timer.
在一些实施例中，所述第五定时器和所述第六定时器或称保活定时器，所述第五计数器或称保活计数器。In some embodiments, the fifth timer and the sixth timer are called keep-alive timers, and the fifth counter is called a keep-alive counter.
在一些实施例中，所述第六定时器用于周期性的触发PC5单播链路保活进程。In some embodiments, the sixth timer is used to periodically trigger the PC5 unicast link keep-alive process.
在一些实施例中，所述第六定时器的时长根据最大非激活周期的值确定，或者所述最大非激活周期的值根据所述第六定时器的时长确定。例如，所述最大非激活周期的值大于所述第六定时器的时长。In some embodiments, the duration of the sixth timer is determined according to the value of the maximum inactive period, or the value of the maximum inactive period is determined according to the duration of the sixth timer. For example, the value of the maximum inactive period is greater than the duration of the sixth timer.
例如，发送端终端可以周期性的发送侧行数据，并接收接收端终端回复的针对所述侧行数据的响应，以确定发送端终端和接收端终端之间的PC5单播链路是否存活，或者说，是否失效。For example, the sending terminal may periodically send sidelink data, and receive a response to the sidelink data returned by the receiving terminal to determine whether the PC5 unicast link between the sending terminal and the receiving terminal is alive, Or, is it invalid.
又例如，发送端终端在所述第六定时器失效的情况下发送侧行数据，并接收接收端终端回复的针对所述侧行数据的响应，以确定发送端终端和接收端终端之间的PC5单播链路是否存活，或者说，是否失效。For another example, the sending terminal sends the sidelink data when the sixth timer expires, and receives a response to the sidelink data returned by the receiving terminal, so as to determine the relationship between the sending terminal and the receiving terminal. Whether the PC5 unicast link is alive, or in other words, whether it is invalid.
在一些实施例中，所述第五定时器的时长为发送端终端等待接收端终端回复针对侧行数据的响应的最大等待时长。In some embodiments, the duration of the fifth timer is the maximum waiting duration for the sending terminal to wait for the receiving terminal to reply with a response to the sidelink data.
在本申请一些实施例中，所述方法300还包括：In some embodiments of the present application, the method 300 further includes:
若在第五定时器失效前，所述第二终端接收到针对所述侧行数据的响应，停止所述第五定时器，启动或重启所述第六定时器。If the second terminal receives a response to the sidelink data before the fifth timer expires, stop the fifth timer, and start or restart the sixth timer.
在本申请一些实施例中，所述方法300还包括：In some embodiments of the present application, the method 300 further includes:
若所述第五定时器失效，所述第二终端使用所述第一空域发送滤波器向所述第一终端重传所述侧行数据。进一步地，所述第二终端将所述第五计数器的计数值加一；和/或，启动或重启所述第五定时器，和/或，停止所述第六定时器。If the fifth timer expires, the second terminal retransmits the sidelink data to the first terminal by using the first airspace transmit filter. Further, the second terminal adds one to the count value of the fifth counter; and/or starts or restarts the fifth timer, and/or stops the sixth timer.
在本申请一些实施例中，所述方法300还包括：In some embodiments of the present application, the method 300 further includes:
若所述第六定时器失效，所述第二终端向所述第一终端发送所述侧行数据。If the sixth timer expires, the second terminal sends the sidelink data to the first terminal.
例如，在发送端终端向接收端终端发送侧行数据的时间间隔达到最大非激活周期时，发送端终端再次向接收端终端发送侧行数据，以确定二者之间的链路是否存活。For example, when the time interval for sending sidelink data from the sending terminal to the receiving terminal reaches the maximum inactive period, the sending terminal sends sidelink data to the receiving terminal again to determine whether the link between the two is alive.
综上，发送端终端可以根据该发送端终端使用空域发送滤波器发送的侧行数据的反馈结果，和/或针对该侧行数据的响应(或者，发送端终端和接收端终端之间的无线链路状况)，确定空域发送滤波器是否失效。To sum up, the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless communication between the transmitting terminal and the receiving terminal) link status), to determine if the airspace transmit filter is disabled.
在一些实施例中，所述发送端终端可以在空域发送滤波器失效的情况下，确定该空域发送滤波器对应的空域接收滤波器也失效。In some embodiments, the transmitting terminal may determine that the spatial receiving filter corresponding to the spatial transmitting filter is also invalid when the spatial transmitting filter is invalid.
在一些实施例中，所述发送端终端可以在空域发送滤波器失效的情况下，确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对失效。In some embodiments, the transmitting terminal may determine that the spatial domain filter pair formed by the spatial domain transmission filter and the spatial domain reception filter corresponding to the spatial domain transmission filter is invalid when the spatial domain transmission filter is invalid.
在一些实施例中，发送端终端也可以根据前述实施例中所描述的方式确定空域接收滤波器是否失效，或者，空域滤波器对是否失效。In some embodiments, the transmitting terminal may also determine whether the spatial domain receiving filter is invalid or whether the spatial domain filter pair is invalid according to the manner described in the foregoing embodiments.
例如，发送端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的反馈结果，和/或针对该侧行数据的响应(或者，发送端终端和接收端终端之间的无线链路是否失效)确定该空域发送滤波器对应的空域接收滤波器是否失效。具体确定方式参考前述实施例的相关描述，为了简洁，这里不再赘述。For example, the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless link between the transmitting terminal and the receiving terminal) whether it is invalid) determines whether the spatial receiving filter corresponding to the spatial transmitting filter is invalid. For a specific determination manner, refer to relevant descriptions of the foregoing embodiments, and for the sake of brevity, details are not repeated here.
又例如，发送端终端可以根据发送端终端使用空域发送滤波器发送的侧行数据的反馈结果，和/或针对该侧行数据的响应(或者，发送端终端和接收端终端之间的无线链路状况)确定该空域发送滤波器和与该空域发送滤波器对应的空域接收滤波器构成的空域滤波器对是否失效。For another example, the transmitting terminal may use the feedback result of the sidelink data sent by the transmitting terminal using the airspace transmission filter, and/or the response to the sidelink data (or, the wireless link between the transmitting terminal and the receiving terminal) road condition) to determine whether the spatial domain filter pair formed by the spatial domain transmit filter and the spatial domain receive filter corresponding to the spatial domain transmit filter is invalid.
在本申请一些实施例中，发送端终端在确定第一空域发送滤波器失效的情况下，可以选取新的空域发送滤波器进行后续的传输，例如选取第二空域发送滤波器进行后续的传输，或者，也可以执行选取空域发送滤波器过程以选取新的最优空域发送滤波器。In some embodiments of the present application, when the transmitting terminal determines that the first airspace transmission filter is invalid, it may select a new airspace transmission filter for subsequent transmission, for example, select a second airspace transmission filter for subsequent transmission, Alternatively, a process of selecting a spatial domain transmission filter may also be performed to select a new optimal spatial domain transmission filter.
在本申请一些实施例中，所述方法300还包括：In some embodiments of the present application, the method 300 further includes:
若所述第二终端确定所述第一空域发送滤波器失效，所述第二终端向所述第一终端发送第三指示信息，其中，所述第三指示信息用于指示以下信息中至少一种：If the second terminal determines that the first airspace transmission filter is invalid, the second terminal sends third indication information to the first terminal, where the third indication information is used to indicate at least one of the following information kind:
所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
所述第一空域发送滤波器对应的空域接收滤波器失效；The spatial domain receiving filter corresponding to the first spatial domain transmitting filter is invalid;
所述第一空域发送滤波器和所述第一空域发送滤波器对应的空域接收滤波器构成的空域滤波器对失效；The spatial domain filter pair formed by the first spatial domain transmission filter and the spatial domain reception filter corresponding to the first spatial domain transmission filter is invalid;
所述第二终端执行选取空域发送滤波器过程；The second terminal executes a process of selecting a spatial transmission filter;
所述第二终端使用不同的空域发送滤波器发送多个侧行参考信号；The second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters;
所述第二终端将要发送用于选取目标空域发送滤波器的侧行参考信号；The second terminal is about to send a sidelink reference signal for selecting a target airspace transmit filter;
信道状态信息CSI上报量；Channel state information CSI reporting amount;
第二TCI状态信息。Second TCI status information.
在本申请一些实施例中，在确定第一空域发送滤波器失效时，发送端终端可以向接收端终端发送第三指示信息，所述第三指示信息可以用于直接或间接指示所述发送端终端将要执行空域发送滤波器选取过程，或者将使用新的空域发送滤波器进行侧行传输。In some embodiments of the present application, when it is determined that the first airspace transmission filter is invalid, the transmitting terminal may send third indication information to the receiving terminal, and the third indication information may be used to directly or indirectly indicate that the transmitting terminal The terminal will perform an airspace transmit filter selection process, or will use a new airspace transmit filter for sidelink transmission.
作为示例，所述第三指示信息用于指示第一空域发送滤波器失效，从而接收端终端可以确定发送端终端将要使用第二空域发送滤波器进行侧行传输，或者，发送端终端将要执行空域发送滤波器选取过程以选取新的最优空域发送滤波器，或者，发送端终端将要使用不同的空域发送滤波器发送多个侧行参考信号，所述多个侧行参考信号用于选取新的最优空域发送滤波器。As an example, the third indication information is used to indicate that the first airspace transmit filter is invalid, so that the receiving terminal can determine that the transmitting terminal will use the second airspace transmit filter for sidelink transmission, or that the transmitting terminal will perform airspace transmission. The transmit filter selection process is to select a new optimal spatial domain transmit filter, or, the transmitting terminal will use different spatial domain transmit filters to transmit multiple sidelink reference signals, and the multiple sideline reference signals are used to select a new Optimal spatial transmit filter.
作为又一示例，所述第三指示信息用于指示发送端终端将要执行空域发送滤波器选取过程，从而 接收端终端可以辅助所述发送端终端进行最优空域发送滤波器的选取，例如向发送端终端发送CSI上报量。As yet another example, the third indication information is used to indicate that the transmitting terminal terminal is about to perform a process of selecting an airspace transmission filter, so that the receiving terminal terminal can assist the transmitting terminal terminal in selecting an optimal airspace transmission filter, for example, sending The end terminal sends the CSI reporting amount.
作为再一示例，所述第三指示信息用于指示所述发送端终端使用不同的空域发送滤波器发送多个侧行参考信号，从而接收端终端可以使用相同的空域接收滤波器进行侧行参考信号的接收，进一步对该侧行参考信号进行测量，根据测量结果进行CSI上报或反馈。As another example, the third indication information is used to instruct the transmitting terminal to use different spatial domain transmitting filters to transmit multiple sidelink reference signals, so that the receiving terminal can use the same spatial domain receiving filter for sidelink reference After receiving the signal, the sidelink reference signal is further measured, and the CSI is reported or fed back according to the measurement result.
作为又一示例，所述第三指示信息用于指示发送端终端将要发送用于选取目标空域发送滤波器的侧行参考信号，从而接收端终端可以接收该侧行参考信号，并对该侧行参考信号进行测量，根据测量结果进行CSI上报或反馈。As yet another example, the third indication information is used to indicate that the transmitting terminal terminal will send a sidelink reference signal for selecting a target airspace transmit filter, so that the receiving terminal terminal can receive the sidelink reference signal and send the sidelink reference signal to the sidelink reference signal. The reference signal is used for measurement, and the CSI is reported or fed back according to the measurement result.
作为又一示例，所述第三指示信息用于指示CSI上报量，从而接收端终端可以根据该CSI上报量确定发送端终端将要执行选取空域发送滤波器过程，进而接收端终端可以辅助所述发送端终端进行最优空域发送滤波器的选取，例如根据发送端终端指示的CSI上报量进行CSI上报或反馈。As another example, the third indication information is used to indicate the amount of CSI reporting, so that the receiving terminal can determine according to the amount of CSI reporting that the transmitting terminal will perform the process of selecting an airspace transmission filter, and then the receiving terminal can assist the transmission. The end terminal selects the optimal airspace transmission filter, for example, performs CSI reporting or feedback according to the CSI reporting amount indicated by the transmitting end terminal.
作为又一示例，所述第三指示信息用于确定发送端终端选取的新的空域发送滤波器，例如，所述第三指示信息用于指示第二TCI状态信息，所述第二TCI状态信息所关联的CSI-RS资源对应所述发送端终端选取的新的空域发送滤波器，例如，所述第二TCI状态信息所关联的CSI-RS资源对应第二空域发送滤波器，则所述第二空域发送滤波器为发送端终端待使用的空域发送滤波器，接收端终端获知发送端终端将使用第二空域发送滤波器进行传输时，可以使用该第二空域发送滤波器关联的空域接收滤波器进行接收，从而能够提升传输性能。As yet another example, the third indication information is used to determine a new airspace transmission filter selected by the transmitting end terminal, for example, the third indication information is used to indicate the second TCI state information, and the second TCI state information The associated CSI-RS resource corresponds to the new airspace transmission filter selected by the transmitting end terminal, for example, the CSI-RS resource associated with the second TCI status information corresponds to the second airspace transmission filter, then the first The second airspace transmit filter is the airspace transmit filter to be used by the transmitting terminal. When the receiving terminal knows that the transmitting terminal will use the second airspace transmit filter for transmission, it can use the airspace receive filter associated with the second airspace transmit filter. Receiver to improve transmission performance.
可选地，所述第二空域发送滤波器可以是根据接收端终端上报的N个CSI-RS资源确定的。Optionally, the second airspace transmission filter may be determined according to the N CSI-RS resources reported by the terminal at the receiving end.
例如，所述第二空域发送滤波器可以是该N个CSI-RS资源对应的空域发送滤波器中除所述第一空域发送滤波器之外的任一空域发送滤波器。For example, the second spatial transmission filter may be any spatial transmission filter except the first spatial transmission filter among the spatial transmission filters corresponding to the N CSI-RS resources.
又例如，所述第一空域发送滤波器是该N个CSI-RS资源中测量结果最优的CSI-RS资源对应的空域发送滤波器，则所述第二空域发送滤波器可以是N个CSI-RS资源中测量结果次优的CSI-RS资源对应的空域发送滤波器。For another example, the first spatial transmission filter is the spatial transmission filter corresponding to the CSI-RS resource with the best measurement result among the N CSI-RS resources, then the second spatial transmission filter may be N CSI-RS resources - a spatial domain transmission filter corresponding to a CSI-RS resource whose measurement result is suboptimal among the RS resources.
应理解，所述第三指示信息可以通过任一侧行信息或侧行信令发送。作为示例，所述第二指示信息通过以下之一承载：侧行控制信息(Sidelink Control Information，SCI)，媒体接入控制控制元素(Media Access Control Control Element，MAC CE)，PC5-RRC信令。It should be understood that the third indication information may be sent through any sidelink information or sidelink signaling. As an example, the second indication information is carried by one of the following: sidelink control information (Sidelink Control Information, SCI), media access control control element (Media Access Control Control Element, MAC CE), PC5-RRC signaling.
在一些实施例中，所述CSI上报量包括以下至少之一：In some embodiments, the CSI reporting amount includes at least one of the following:
CSI-RS资源指示(CSI-RS Resource Indicator，CRI)，CRI和参考信号接收功率(Reference Signal Receiving Power，RSRP)(‘cri-RSRP’)，CRI和信号干扰噪声比(Signal to Interference plus Noise Ratio，SINR)(‘cri-SINR’)，时隙资源指示信息，时隙资源指示和RSRP，时隙资源指示和SINR，不上报或空(‘none’)。CSI-RS Resource Indicator (CSI-RS Resource Indicator, CRI), CRI and Reference Signal Receiving Power (Reference Signal Receiving Power, RSRP) ('cri-RSRP'), CRI and Signal to Interference plus Noise Ratio , SINR)('cri-SINR'), slot resource indication information, slot resource indication and RSRP, slot resource indication and SINR, do not report or empty ('none').
可选地，所述时隙资源指示信息用于确定所述第二终端设备发送的CSI-RS对应的时隙，或者，所述时隙资源指示信息用于确定所述第二终端设备发送的CSI-RS资源对应的索引。Optionally, the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the second terminal device, or the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the second terminal device The index corresponding to the CSI-RS resource.
综上，发送端终端可以根据使用空域发送滤波器发送的侧行数据的反馈结果，或者，发送端终端和接收端终端之间的无线链路状况确定空域发送滤波器是否失效。进一步地，在空域发送滤波器失效的情况下，发送端终端可以指示接收端终端该发送端终端将要使用新的空域发送滤波器进行侧行传输，或者将要执行空域发送滤波器选取过程以选取新的最优空域发送滤波器，从而能够保证侧行传输的可靠性。To sum up, the transmitting terminal may determine whether the airspace transmitting filter is invalid according to the feedback result of the sidelink data sent by using the airspace transmitting filter, or the wireless link condition between the transmitting terminal and the receiving terminal. Further, in the case that the airspace transmit filter fails, the transmitting terminal may indicate to the receiving terminal that the transmitting terminal will use a new airspace transmit filter for sidelink transmission, or will perform an airspace transmit filter selection process to select a new one. The optimal spatial domain transmit filter can ensure the reliability of sidewalk transmission.
上文结合图13至图17，详细描述了本申请的方法实施例，下文结合图18至图22，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。The method embodiment of the present application is described in detail above in conjunction with FIG. 13 to FIG. 17 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 18 to FIG. 22 . It should be understood that the device embodiment and the method embodiment correspond to each other, similar to The description can refer to the method embodiment.
图18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18所示，该终端设备400包括：Fig. 18 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 18, the terminal device 400 includes:
处理单元410，用于根据第一信息，确定第一空域发送滤波器是否失效，其中，所述第一信息包括以下中的至少一项：The processing unit 410 is configured to determine whether the first airspace transmission filter is invalid according to the first information, where the first information includes at least one of the following:
所述终端设备是否接收到第二终端使用第一空域发送滤波器发送的侧行数据；Whether the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmission filter;
所述终端设备对所述第二终端使用第一空域发送滤波器发送的侧行数据的测量结果；A measurement result of the sidelink data sent by the terminal device to the second terminal using the first airspace transmission filter;
第一指示信息，其中，所述第一指示信息用于指示发生空域发送滤波器失效实例。The first indication information, wherein the first indication information is used to indicate the occurrence of an invalidation instance of the airspace transmission filter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
根据所述第一信息和第一计数器，确定所述第一空域发送滤波器是否失效。According to the first information and the first counter, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
根据所述第一信息和第一定时器，对所述第一计数器进行计数；counting the first counter according to the first information and the first timer;
根据所述第一计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the first counter, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若在所述第一定时器失效时，所述终端设备没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将所述第一计数器的计数值加一；和/或If the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the first timer expires, add one to the count value of the first counter; and / or
若在所述第一定时器失效前，所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第一门限，将所述第一计数器的计数值加一；和/或If before the first timer expires, the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than the first threshold , adding one to the count value of the first counter; and/or
若在所述第一定时器失效前，所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第一门限，将所述第一计数器的计数值置零，或者，重置所述第一计数器。If before the first timer expires, the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to the set The first threshold is set, the count value of the first counter is set to zero, or the first counter is reset.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于第一门限的情况下，将所述第一定时器置为零，或者重置所述第一定时器；或者When the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than the first threshold, set the first timing timer is set to zero, or resets the first timer; or
在所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，将所述第一定时器置为零，或者重置所述第一定时器。When the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmit filter, set the first timer to zero, or reset the first timer .
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若所述第一计数器的计数值大于或等于第二门限，确定所述第一空域发送滤波器失效。If the count value of the first counter is greater than or equal to the second threshold, it is determined that the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在高层根据底层上报的所述第一指示信息，对第二计数器进行计数；Counting the second counter at the high layer according to the first indication information reported by the bottom layer;
根据所述第二计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the second counter, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在高层接收到底层发送的所述第一指示信息的情况下，将所述第二计数器的计数值加一。When the upper layer receives the first indication information sent by the lower layer, add one to the count value of the second counter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在底层根据所述第一信息和第二定时器，确定是否向高层发送所述第一指示信息。The bottom layer determines whether to send the first indication information to a high layer according to the first information and the second timer.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若在第二定时器失效时，所述终端设备没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，确定向所述高层发送所述第一指示信息；和/或，If the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, determine to send the first indication information to the high layer; and /or,
若在所述第二定时器失效前，所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限，确定向高层发送所述第一指示信息。If before the second timer expires, the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold , determining to send the first indication information to a higher layer.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在底层根据所述第一信息和所述第二定时器，对第三计数器进行计数；Counting a third counter at the bottom layer according to the first information and the second timer;
根据所述第三计数器的计数值，确定是否向所述终端设备的高层发送所述第一指示信息。Determine whether to send the first indication information to a high layer of the terminal device according to the count value of the third counter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若在第二定时器失效时，所述终端设备没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将第三计数器的计数值加一；和/或If the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, add one to the count value of the third counter; and/or
若在所述第二定时器失效前，所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限，将所述第三计数器的计数值加一；和/或If before the second timer expires, the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is less than a third threshold , adding one to the count value of the third counter; and/or
若在所述第二定时器失效前，所述终端设备接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第三门限，将所述第三计数器的计数值置零，或者，重置所述第三计数器。If before the second timer expires, the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to the first Three thresholds, set the count value of the third counter to zero, or reset the third counter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若所述第三计数器的计数值大于或等于第四门限，确定向所述终端设备的高层发送所述第一指示信息。If the count value of the third counter is greater than or equal to the fourth threshold, it is determined to send the first indication information to a high layer of the terminal device.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于第三门限的情况下，在底层将所述第二定时器置为零，或者重置所述第二定时器；或者When the terminal device receives the sidelink data sent by the second terminal using the first airspace transmission filter, and the measurement result of the sidelink data is greater than a third threshold, the bottom layer transmits the sidelink data setting a second timer to zero, or resetting said second timer; or
在所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，在底层将所述第二定时器置为零，或者重置所述第二定时器。When the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmit filter, set the second timer to zero at the bottom layer, or reset the second timer.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在接收到所述终端设备的底层的第一指示信息的情况下，在高层重置或重启第三定时器。In the case of receiving the first indication information from the bottom layer of the terminal device, the third timer is reset or restarted at the high layer.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在所述第三定时器失效时，在高层未接收到所述终端设备的底层发送的第一指示信息，将所述第二计数器的计数值置零，或者重置所述第二计数器。When the third timer expires, the upper layer does not receive the first indication information sent by the lower layer of the terminal device, and sets the count value of the second counter to zero, or resets the second counter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若所述第二计数器的计数值大于或等于第五门限，确定所述第一空域发送滤波器失效。If the count value of the second counter is greater than or equal to the fifth threshold, it is determined that the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
根据所述第一信息，对第四计数器进行计数；Counting a fourth counter according to the first information;
根据所述第四计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the fourth counter, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
在所述侧行数据的测量结果小于第六门限的情况下，将所述第四计数器的计数值加一；和/或In the case that the measurement result of the side row data is less than the sixth threshold, adding one to the count value of the fourth counter; and/or
在所述侧行数据的测量结果大于或等于第六门限的情况下，将所述第四计数器的计数值置零，或者重置所述第四计数器。When the measurement result of the side row data is greater than or equal to the sixth threshold, set the count value of the fourth counter to zero, or reset the fourth counter.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若所述第四计数器的计数值大于或等于第七门限，确定所述第一空域发送滤波器失效。If the count value of the fourth counter is greater than or equal to the seventh threshold, it is determined that the first airspace transmit filter is invalid.
在本申请一些实施例中，所述第一定时器的时长是预定义的，或者是网络设备配置的，或者是所述终端设备确定的，或者，所述第二终端指示的。In some embodiments of the present application, the duration of the first timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
在本申请一些实施例中，所述第二定时器的时长是预定义的，或者是网络设备配置的，或者是所述终端设备确定的，或者，所述第二终端指示的。In some embodiments of the present application, the duration of the second timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
在本申请一些实施例中，所述第三定时器的时长是预定义的，或者是网络设备配置的，或者是所述终端设备确定的，或者，所述第二终端指示的。In some embodiments of the present application, the duration of the third timer is predefined, or configured by the network device, or determined by the terminal device, or indicated by the second terminal.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
根据所述第二终端发送的参考信号的测量结果，确定所述侧行数据的测量结果。Determine the measurement result of the sidelink data according to the measurement result of the reference signal sent by the second terminal.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
根据所述第一信息和第四定时器，确定所述第一空域发送滤波器是否失效。According to the first information and the fourth timer, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元410还用于：In some embodiments of the present application, the processing unit 410 is further configured to:
若在所述第四定时器失效前，所述终端设备接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器未失效；和/或If the terminal device receives sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter is not invalid; and/or
若在所述第四定时器失效前，所述终端设备未接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器失效。If the terminal device does not receive the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter is invalid.
在本申请一些实施例中，所述终端设备还包括：In some embodiments of the present application, the terminal device further includes:
通信单元，用于在所述第四定时器失效前，所述终端设备接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，向所述第二终端发送针对所述侧行数据的响应；A communication unit, configured to send a message to the second terminal when the terminal device receives the sidelink data sent by the second terminal using the first airspace transmit filter before the fourth timer expires. sending a response to the sidestream data;
所述处理单元410还用于：启动或重启所述第四定时器。The processing unit 410 is further configured to: start or restart the fourth timer.
在本申请一些实施例中，所述处理单元410具体用于：In some embodiments of the present application, the processing unit 410 is specifically configured to:
停止所述第四定时器，并启动或重启所述第四定时器，其中，所述第四定时器的值根据所述第二终端发送的所述侧行数据中包括的指示信息确定。Stopping the fourth timer, and starting or restarting the fourth timer, where the value of the fourth timer is determined according to the indication information included in the sidelink data sent by the second terminal.
在本申请一些实施例中，所述侧行数据包括直通链路保活请求信息；In some embodiments of the present application, the sidelink data includes direct link keep-alive request information;
所述针对所述侧行数据的响应包括直通链路保活响信息。The response to the sidelink data includes direct link keep-alive ringing information.
在本申请一些实施例中，所述终端设备400还包括：In some embodiments of the present application, the terminal device 400 further includes:
通信单元，用于在确定所述第一空域发送滤波器失效的情况下，向所述第二终端发送第二指示信息，其中，所述第二指示信息用于指示以下信息中至少一种：A communication unit, configured to send second indication information to the second terminal when it is determined that the first airspace transmission filter is invalid, where the second indication information is used to indicate at least one of the following information:
所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
所述第二终端执行选取空域发送滤波器过程；The second terminal executes a process of selecting a spatial transmission filter;
所述第二终端使用不同的空域发送滤波器发送多个侧行参考信号。The second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters.
在本申请一些实施例中，所述第二指示信息通过以下至少之一承载：In some embodiments of the present application, the second indication information is carried by at least one of the following:
侧行控制信息SCI，媒体接入控制控制元素MAC CE，PC5-无线资源控制RRC信令。Sideline control information SCI, medium access control element MAC CE, PC5-radio resource control RRC signaling.
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上***的输入输出接口。上述处理单元可以是一个或多个处理器。Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.
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第一终端，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13至16所示方法200中第一终端的相应流程，为了简洁，在此不再赘述。It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the first terminal 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 to realize the For the sake of brevity, the corresponding process of the first terminal in the shown method 200 is not repeated here.
图19示出了根据本申请实施例的终端设备500的示意性框图。如图19所示，该终端设备500包 括：Fig. 19 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in Figure 19, the terminal equipment 500 includes:
通信单元510，用于使用第一空域发送滤波器向第一终端发送侧行数据；A communication unit 510, configured to send sidelink data to the first terminal by using the first airspace transmission filter;
处理单元520，用于根据所述侧行数据的反馈结果，或者，所述终端设备根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效。The processing unit 520 is configured to determine whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether the terminal device receives a response to the sidelink data.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
在所述侧行数据的反馈结果为以下之一的情况下，确定所述第一空域发送滤波器失效：When the feedback result of the sidebound data is one of the following, it is determined that the first airspace transmission filter is invalid:
所述终端设备连续检测到K1次非连续传输DTX状态；The terminal device continuously detects K1 discontinuous transmission DTX states;
所述终端设备连续检测到K2次否定确认NACK信息；The terminal device continuously detects K2 negative acknowledgment NACK information;
所述终端设备连续K3次未检测到肯定确认ACK信息；The terminal device does not detect positive confirmation ACK information for K3 consecutive times;
其中，K1、K2、K3为正整数。Wherein, K1, K2, and K3 are positive integers.
在本申请一些实施例中，所述K1、K2、K3是预定义的，或者是网络设备配置的。In some embodiments of the present application, the K1, K2, and K3 are predefined or configured by a network device.
在本申请一些实施例中，所述终端设备检测到DTX状态不包括如下情况中的至少之一：In some embodiments of the present application, the terminal device detects that the DTX state does not include at least one of the following situations:
在所述侧行数据对应的反馈信息的优先级低于第二信息的优先级的情况下，所述终端设备在需要发送所述侧行数据对应的反馈信息的时间单元上，优先发送所述第二信息，而没有接收所述侧行数据对应的反馈信息，其中，所述第二信息为上行信息或侧行信息；When the priority of the feedback information corresponding to the sidelink data is lower than the priority of the second information, the terminal device preferentially sends the feedback information corresponding to the sidelink data in a time unit second information, without receiving feedback information corresponding to the sidelink data, where the second information is uplink information or sidelink information;
在所述侧行数据对应的反馈信息的优先级低于第三信息的优先级的情况下，所述终端设备在需要接收所述侧行数据对应的反馈信息的时间单元上，优先接收所述第三信息，而没有接收所述侧行数据的反馈信息，其中，所述第三信息为下行信息或侧行信息。In the case that the priority of the feedback information corresponding to the sidelink data is lower than that of the third information, the terminal device preferentially receives the feedback information corresponding to the sidelink data in the time unit that needs to receive the feedback information The third information does not receive the feedback information of the sidelink data, where the third information is downlink information or sidelink information.
在本申请一些实施例中，所述终端设备激活侧行反馈。In some embodiments of the present application, the terminal device activates sidelink feedback.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
根据是否接收到针对所述侧行数据的响应，对第五计数器进行计数，counting a fifth counter according to whether a response to said side row data is received,
根据所述第五计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the fifth counter, determine whether the first airspace transmit filter is invalid.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
在使用所述第一空域发送滤波器向所述第一终端发送侧行数据的情况下，启动或重启第五定时器，停止第六定时器。When the first airspace transmit filter is used to transmit sidelink data to the first terminal, start or restart the fifth timer, and stop the sixth timer.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
若在所述第五定时器失效前，所述终端设备接收到针对所述侧行数据的响应，将所述第五计数器的计数值置零，或者重置所述第五计数器。If the terminal device receives a response to the sidelink data before the fifth timer expires, set the count value of the fifth counter to zero, or reset the fifth counter.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
若在第五定时器失效前，所述终端设备接收到针对所述侧行数据的响应，停止所述第五定时器，启动或重启所述第六定时器。If the terminal device receives a response to the sidelink data before the fifth timer expires, stop the fifth timer, and start or restart the sixth timer.
在本申请一些实施例中，所述通信单元510还用于：In some embodiments of the present application, the communication unit 510 is also used to:
若所述第五定时器失效，使用所述第一空域发送滤波器向所述第一终端重传所述侧行数据。If the fifth timer expires, retransmit the sidelink data to the first terminal by using the first airspace transmission filter.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
将所述第五计数器的计数值加一；和/或adding one to the count value of the fifth counter; and/or
启动或重启所述第五定时器，停止所述第六定时器。Start or restart the fifth timer, and stop the sixth timer.
在本申请一些实施例中，所述通信单元510还用于：In some embodiments of the present application, the communication unit 510 is also used to:
若所述第六定时器失效，向所述第一终端发送所述侧行数据。If the sixth timer expires, send the sidelink data to the first terminal.
在本申请一些实施例中，所述侧行数据包括直通链路保活请求信息；In some embodiments of the present application, the sidelink data includes direct link keep-alive request information;
所述针对所述侧行数据的响应包括直通链路保活响应信息。The response to the sidelink data includes direct link keep-alive response information.
在本申请一些实施例中，所述处理单元520还用于：In some embodiments of the present application, the processing unit 520 is further configured to:
若所述第五计数器的计数值大于或等于第八门限，确定所述第一空域发送滤波器失效。If the count value of the fifth counter is greater than or equal to the eighth threshold, it is determined that the first airspace transmit filter is invalid.
在本申请一些实施例中，所述通信单元510还用于：In some embodiments of the present application, the communication unit 510 is also used to:
若所述终端设备确定所述第一空域发送滤波器失效，向所述第一终端发送第三指示信息，其中，所述第三指示信息用于指示以下信息中至少一种：If the terminal device determines that the first airspace transmission filter is invalid, send third indication information to the first terminal, where the third indication information is used to indicate at least one of the following information:
所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
所述终端设备执行选取空域发送滤波器过程；The terminal device executes a process of selecting an airspace transmission filter;
所述终端设备使用不同的空域发送滤波器发送多个侧行参考信号；The terminal device transmits multiple sidelink reference signals using different spatial transmission filters;
所述终端设备将要发送用于选取目标空域发送滤波器的侧行参考信号；The terminal device is about to send a side reference signal for selecting a target airspace transmit filter;
信道状态信息CSI上报量；Channel state information CSI reporting amount;
第二传输配置指示TCI状态信息，其中，所述第一空域发送滤波器根据第一TCI状态信息关联的CSI-RS资源确定，所述第二TCI状态信息关联的CSI-RS资源和所述第一TCI状态信息关联的CSI-RS 资源不同。The second transmission configuration indicates TCI state information, wherein the first airspace transmit filter is determined according to the CSI-RS resource associated with the first TCI state information, and the CSI-RS resource associated with the second TCI state information is the same as the first TCI state information. The CSI-RS resources associated with the TCI state information are different.
在本申请一些实施例中，所述CSI上报量包括以下至少之一：In some embodiments of the present application, the CSI reporting amount includes at least one of the following:
信道状态信息参考信号CSI-RS资源指示CRI，CRI和参考信号接收功率RSRP，CRI和接收信号强度指示SINR，时隙资源指示信息，时隙资源指示和RSRP，时隙资源指示和SINR，不上报；Channel state information reference signal CSI-RS resource indication CRI, CRI and reference signal received power RSRP, CRI and received signal strength indication SINR, time slot resource indication information, time slot resource indication and RSRP, time slot resource indication and SINR, not reported ;
其中，所述时隙资源指示信息用于确定所述终端设备设备发送的CSI-RS对应的时隙，或者，所述时隙资源指示信息用于确定所述终端设备设备发送的CSI-RS资源对应的索引。Wherein, the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the terminal device, or the time slot resource indication information is used to determine the CSI-RS resource sent by the terminal device the corresponding index.
在本申请一些实施例中，所述第三指示信息通过以下至少之一承载：In some embodiments of the present application, the third indication information is carried by at least one of the following:
侧行控制信息SCI，媒体接入控制控制元素MAC CE，PC5-无线资源控制RRC信令。Sideline control information SCI, medium access control element MAC CE, PC5-radio resource control RRC signaling.
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上***的输入输出接口。上述处理单元可以是一个或多个处理器。Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.
应理解，根据本申请实施例的终端设备500可对应于本申请方法实施例中的第二终端，并且终端设备500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17所示方法300中第二终端的相应流程，为了简洁，在此不再赘述。It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the second terminal 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 500 are respectively in order to realize the For the sake of brevity, the corresponding process of the second terminal in method 300 will not be repeated here.
图20是本申请实施例提供的一种通信设备600示意性结构图。图20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。FIG. 20 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. 20 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.
可选地，如图20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。Optionally, as shown in FIG. 20 , the communication device 600 may further include a memory 620 . Wherein, the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
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。Wherein, the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
可选地，如图20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。Optionally, as shown in FIG. 20, 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.
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。Wherein, 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.
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。Optionally, 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. For the sake of brevity, the Let me repeat.
在一些实施例中，该通信设备600中的收发器630可以对应于图20所示终端设备400中的通信单元410，该收发器630可以执行该通信单元410所执行的操作或功能，为了简洁，这里不再赘述。In some embodiments, the transceiver 630 in the communication device 600 may correspond to the communication unit 410 in the terminal device 400 shown in FIG. 20, and the transceiver 630 may perform the operations or functions performed by the communication unit 410. , which will not be repeated here.
可选地，该通信设备600具体可为本申请实施例的第二终端，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二终端实现的相应流程，为了简洁，在此不再赘述。Optionally, the communication device 600 may specifically be the second terminal in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the second terminal in each method of the embodiment of the present application. For the sake of brevity, the Let me repeat.
图21是本申请实施例的芯片的示意性结构图。图21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。FIG. 21 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 21 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.
可选地，如图21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。Optionally, as shown in FIG. 21 , the chip 700 may further include a memory 720 . Wherein, 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.
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。Wherein, the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
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。Optionally, the chip 700 may also include an input interface 730 . Wherein, 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.
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。Optionally, the chip 700 may also include an output interface 740 . Wherein, 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.
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。Optionally, 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. For the sake of brevity, details are not repeated here.
在一些实施例中，该芯片700中的输入接口730和输出接口740可以对应于图20所示终端设备400中的通信单元410，该输入接口730和输出接口740可以执行该通信单元410所执行的操作或功能，为了简洁，这里不再赘述。In some embodiments, the input interface 730 and the output interface 740 in the chip 700 may correspond to the communication unit 410 in the terminal device 400 shown in FIG. The operation or function of , for the sake of brevity, will not be repeated here.
可选地，该芯片可应用于本申请实施例中的第二终端，并且该芯片可以实现本申请实施例的各个方法中由第二终端实现的相应流程，为了简洁，在此不再赘述。Optionally, the chip can be applied to the second terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the second terminal in the methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.
应理解，本申请实施例提到的芯片还可以称为***级芯片，***芯片，芯片***或片上***芯片等。It should be understood that 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.
图22是本申请实施例提供的一种通信***900的示意性框图。如图22所示，该通信***900包括第一终端910和第二终端920。Fig. 22 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 22 , the communication system 900 includes a first terminal 910 and a second terminal 920 .
其中，该第一终端910可以用于实现上述方法中由第一终端实现的相应的功能，以及该第二终端920可以用于实现上述方法中由第二终端实现的相应的功能为了简洁，在此不再赘述。Wherein, the first terminal 910 can be used to realize the corresponding functions realized by the first terminal in the above method, and the second terminal 920 can be used to realize the corresponding functions realized by the second terminal in the above method. This will not be repeated here.
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。It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, 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. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. 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.
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***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。It can be understood that 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. Among them, 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. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (Static RAM, SRAM), Dynamic Random Access Memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM ) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.
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。It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, 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 memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
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。The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
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。Optionally, the computer-readable storage medium may 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. For brevity, I won't repeat them here.
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二终端，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二终端实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer-readable storage medium can be applied to the second terminal in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the second terminal in each method of the embodiment of the present application. For the sake of brevity, I won't repeat them here.
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。The embodiment of the present application also provides a computer program product, including computer program instructions.
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。Optionally, 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. For brevity, the This will not be repeated here.
可选地，该计算机程序产品可应用于本申请实施例中的第二终端，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二终端实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program product can be applied to the second terminal in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the second terminal in each method of the embodiment of the present application. For brevity, the This will not be repeated here.
本申请实施例还提供了一种计算机程序。The embodiment of the present application also provides a computer program.
可选的，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。Optionally, the computer program may 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.
可选地，该计算机程序可应用于本申请实施例中的第二终端，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二终端实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program can be applied to the second 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 second terminal in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.
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。Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
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***、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。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的***、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***，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。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, 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.
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。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.
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。In addition, 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.
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。If 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. Based on this understanding, 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 and other media that can store program codes. .
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。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (60)

  1. 一种无线通信的方法，其特征在于，包括：A method for wireless communication, comprising:
    第一终端根据第一信息，确定第一空域发送滤波器是否失效，其中，所述第一信息包括以下中的至少一项：The first terminal determines whether the first airspace transmit filter is invalid according to the first information, where the first information includes at least one of the following:
    所述第一终端是否接收到第二终端使用第一空域发送滤波器发送的侧行数据；Whether the first terminal receives the sidelink data sent by the second terminal using the first airspace transmission filter;
    所述第一终端对所述第二终端使用第一空域发送滤波器发送的侧行数据的测量结果；A measurement result of the sidelink data sent by the first terminal to the second terminal using a first airspace transmission filter;
    所述第一终端的底层向所述第一终端的高层发送的第一指示信息，其中，所述第一指示信息用于指示发生空域发送滤波器失效实例。The first indication information sent by the bottom layer of the first terminal to the high layer of the first terminal, where the first indication information is used to indicate that an instance of air domain transmission filter failure occurs.
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端根据第一信息，确定第一空域发送滤波器是否失效，包括：The method according to claim 1, wherein the first terminal determines whether the first airspace transmission filter is invalid according to the first information, comprising:
    所述第一终端根据所述第一信息和第一计数器，确定所述第一空域发送滤波器是否失效。The first terminal determines whether the first airspace transmit filter is invalid according to the first information and the first counter.
  3. 根据权利要求2所述的方法，其特征在于，所述第一终端根据所述第一信息和第一计数器，确定所述第一空域发送滤波器是否失效，包括：The method according to claim 2, wherein the first terminal determines whether the first airspace transmit filter is invalid according to the first information and the first counter, comprising:
    所述第一终端根据所述第一信息和第一定时器，对所述第一计数器进行计数；The first terminal counts the first counter according to the first information and the first timer;
    根据所述第一计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the first counter, determine whether the first airspace transmit filter is invalid.
  4. 根据权利要求3所述的方法，其特征在于，所述第一终端根据所述第一信息和第一定时器，对所述第一计数器进行计数，包括：The method according to claim 3, wherein the first terminal counts the first counter according to the first information and the first timer, comprising:
    若在所述第一定时器失效时，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将所述第一计数器的计数值加一；和/或If the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the first timer expires, add one to the count value of the first counter ;and / or
    若在所述第一定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第一门限，将所述第一计数器的计数值加一；和/或If before the first timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is smaller than the first threshold, adding one to the count value of the first counter; and/or
    若在所述第一定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第一门限，将所述第一计数器的计数值置零，或者，重置所述第一计数器。If before the first timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to The first threshold sets the count value of the first counter to zero, or resets the first counter.
  5. 根据权利要求3或4所述的方法，其特征在于，所述方法还包括：The method according to claim 3 or 4, wherein the method further comprises:
    在所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于第一门限的情况下，将所述第一定时器置为零，或者重置所述第一定时器；或者When the first terminal receives the sidelink data sent by the second terminal using the first spatial transmission filter, and the measurement result of the sidelink data is greater than the first threshold, the first setting the timer to zero, or resetting said first timer; or
    在所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，将所述第一定时器置为零，或者重置所述第一定时器。When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, set the first timer to zero, or reset the first timing device.
  6. 根据权利要求3-5中任一项所述的方法，其特征在于，所述根据所述第一计数器的计数值，确定所述第一空域发送滤波器是否失效，包括：The method according to any one of claims 3-5, wherein the determining whether the first airspace transmit filter is invalid according to the count value of the first counter includes:
    若所述第一计数器的计数值大于或等于第二门限，确定所述第一空域发送滤波器失效。If the count value of the first counter is greater than or equal to the second threshold, it is determined that the first airspace transmit filter is invalid.
  7. 根据权利要求1所述的方法，其特征在于，所述第一终端根据第一信息，确定第一空域发送滤波器是否失效，包括：The method according to claim 1, wherein the first terminal determines whether the first airspace transmission filter is invalid according to the first information, comprising:
    所述第一终端的高层根据所述第一终端的底层上报的所述第一指示信息，对第二计数器进行计数；The upper layer of the first terminal counts the second counter according to the first indication information reported by the lower layer of the first terminal;
    根据所述第二计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the second counter, determine whether the first airspace transmit filter is invalid.
  8. 根据权利要求7所述的方法，其特征在于，所述第一终端的高层根据所述第一终端的底层上报的所述第一指示信息，对第二计数器进行计数，包括：The method according to claim 7, wherein the upper layer of the first terminal counts the second counter according to the first indication information reported by the lower layer of the first terminal, including:
    在所述第一终端的高层接收到所述第一终端的底层发送的所述第一指示信息的情况下，将所述第二计数器的计数值加一。When the upper layer of the first terminal receives the first indication information sent by the lower layer of the first terminal, add one to the count value of the second counter.
  9. 根据权利要求7或8所述的方法，其特征在于，所述方法还包括：The method according to claim 7 or 8, characterized in that the method further comprises:
    所述第一终端的底层根据所述第一信息和第二定时器，确定是否向所述第一终端的高层发送所述第一指示信息。The bottom layer of the first terminal determines whether to send the first indication information to the high layer of the first terminal according to the first information and the second timer.
  10. 根据权利要求9所述的方法，其特征在于，所述第一终端的底层根据所述第一信息和第二定时器，确定是否向所述第一终端的高层发送所述第一指示信息，包括：The method according to claim 9, wherein the bottom layer of the first terminal determines whether to send the first indication information to the high layer of the first terminal according to the first information and the second timer, include:
    若在第二定时器失效时，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，确定向所述第一终端的高层发送所述第一指示信息；和/或，If the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, determine to send the first terminal to the upper layer of the first terminal an instruction message; and/or,
    若在所述第二定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限，确定向所述第一终端的高层发送所述第 一指示信息。If before the second timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is smaller than the third The threshold is used to determine to send the first indication information to the high layer of the first terminal.
  11. 根据权利要求9所述的方法，其特征在于，所述第一终端的底层根据所述第一信息和第二定时器，确定是否向所述第一终端的高层发送所述第一指示信息，包括：The method according to claim 9, wherein the bottom layer of the first terminal determines whether to send the first indication information to the high layer of the first terminal according to the first information and the second timer, include:
    所述第一终端的底层根据所述第一信息和所述第二定时器，对第三计数器进行计数；The bottom layer of the first terminal counts a third counter according to the first information and the second timer;
    根据所述第三计数器的计数值，确定是否向所述第一终端的高层发送所述第一指示信息。Determine whether to send the first indication information to a higher layer of the first terminal according to the count value of the third counter.
  12. 根据权利要求11所述的方法，其特征在于，所述第一终端的底层根据所述第一信息和所述第二定时器，对第三计数器进行计数，包括：The method according to claim 11, wherein the bottom layer of the first terminal counts a third counter according to the first information and the second timer, comprising:
    若在第二定时器失效时，所述第一终端没有接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，将第三计数器的计数值加一；和/或If the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmit filter when the second timer expires, add one to the count value of the third counter; and/or
    若在所述第二定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，但是所述侧行数据的测量结果小于第三门限，将所述第三计数器的计数值加一；和/或If before the second timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, but the measurement result of the sidelink data is smaller than the third threshold, adding one to the count value of the third counter; and/or
    若在所述第二定时器失效前，所述第一终端接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于或等于所述第三门限，将所述第三计数器的计数值置零，或者，重置所述第三计数器。If before the second timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than or equal to the The third threshold is to set the count value of the third counter to zero, or reset the third counter.
  13. 根据权利要求11或12所述的方法，其特征在于，所述根据所述第三计数器的计数值，确定是否向所述第一终端的高层发送所述第一指示信息，包括：The method according to claim 11 or 12, wherein, according to the count value of the third counter, determining whether to send the first indication information to the upper layer of the first terminal comprises:
    若所述第三计数器的计数值大于或等于第四门限，确定向所述第一终端的高层发送所述第一指示信息。If the count value of the third counter is greater than or equal to the fourth threshold, determine to send the first indication information to a high layer of the first terminal.
  14. 根据权利要求9至13任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 9 to 13, further comprising:
    在所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，并且所述侧行数据的测量结果大于第三门限的情况下，所述第一终端的底层将所述第二定时器置为零，或者重置所述第二定时器；或者When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the measurement result of the sidelink data is greater than a third threshold, the first terminal The bottom layer of the second timer is set to zero, or resets the second timer; or
    在所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据的情况下，所述第一终端的底层将所述第二定时器置为零，或者重置所述第二定时器。When the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, the bottom layer of the first terminal sets the second timer to zero, or The second timer is reset.
  15. 根据权利要求7-14中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 7-14, wherein the method further comprises:
    在接收到所述第一终端的底层的第一指示信息的情况下，所述第一终端的高层重置或重启第三定时器。In a case of receiving the first indication information from the bottom layer of the first terminal, the high layer of the first terminal resets or restarts the third timer.
  16. 根据权利要求15所述的方法，所述方法还包括：The method of claim 15, further comprising:
    在所述第三定时器失效时，所述第一终端的高层未接收到所述第一终端的底层发送的第一指示信息，将所述第二计数器的计数值置零，或者重置所述第二计数器。When the third timer expires, the upper layer of the first terminal does not receive the first indication information sent by the lower layer of the first terminal, and sets the count value of the second counter to zero, or resets the Describe the second counter.
  17. 根据权利要求7-16中任一项所述的方法，其特征在于，所述根据所述第二计数器的计数值，确定所述第一空域发送滤波器是否失效，包括：The method according to any one of claims 7-16, wherein the determining whether the first airspace transmit filter is invalid according to the count value of the second counter includes:
    若所述第二计数器的计数值大于或等于第五门限，确定所述第一空域发送滤波器失效。If the count value of the second counter is greater than or equal to the fifth threshold, it is determined that the first airspace transmit filter is invalid.
  18. 根据权利要求1所述的方法，其特征在于，所述第一终端根据第一信息，确定第一空域发送滤波器是否失效，包括：The method according to claim 1, wherein the first terminal determines whether the first airspace transmission filter is invalid according to the first information, comprising:
    所述第一终端根据所述第一信息，对第四计数器进行计数；The first terminal counts a fourth counter according to the first information;
    根据所述第四计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the fourth counter, determine whether the first airspace transmit filter is invalid.
  19. 根据权利要求18所述的方法，其特征在于，所述第一终端根据所述第一信息，对第一计数器进行计数，包括：The method according to claim 18, wherein the first terminal counts the first counter according to the first information, comprising:
    在所述侧行数据的测量结果小于第六门限的情况下，将所述第四计数器的计数值加一；和/或In the case that the measurement result of the side row data is less than the sixth threshold, adding one to the count value of the fourth counter; and/or
    在所述侧行数据的测量结果大于或等于第六门限的情况下，将所述第四计数器的计数值置零，或者重置所述第四计数器。When the measurement result of the side row data is greater than or equal to the sixth threshold, set the count value of the fourth counter to zero, or reset the fourth counter.
  20. 根据权利要求18或19所述的方法，其特征在于，所述根据所述第四计数器的计数值，确定所述第一空域发送滤波器是否失效，包括：The method according to claim 18 or 19, wherein the determining whether the first airspace transmit filter is invalid according to the count value of the fourth counter comprises:
    若所述第四计数器的计数值大于或等于第七门限，确定所述第一空域发送滤波器失效。If the count value of the fourth counter is greater than or equal to the seventh threshold, it is determined that the first airspace transmit filter is invalid.
  21. 根据权利要求3-5中任一项所述的方法，其特征在于，所述第一定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者，所述第二终端指示的。The method according to any one of claims 3-5, wherein the duration of the first timer is predefined, or is configured by a network device, or is determined by the first terminal, or , indicated by the second terminal.
  22. 根据权利要求9-14中任一项所述的方法，其特征在于，所述第二定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者，所述第二终端指示的。The method according to any one of claims 9-14, characterized in that, the duration of the second timer is predefined, or is configured by a network device, or is determined by the first terminal, or , indicated by the second terminal.
  23. 根据权利要求15或16所述的方法，其特征在于，所述第三定时器的时长是预定义的，或者是网络设备配置的，或者是所述第一终端确定的，或者，所述第二终端指示的。The method according to claim 15 or 16, characterized in that, the duration of the third timer is predefined, or is configured by a network device, or is determined by the first terminal, or, the duration of the third timer is Two terminals indicated.
  24. 根据权利要求1-23中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-23, further comprising:
    所述第一终端根据所述第二终端发送的参考信号的测量结果，确定所述侧行数据的测量结果。The first terminal determines the measurement result of the sidelink data according to the measurement result of the reference signal sent by the second terminal.
  25. 根据权利要求1所述的方法，其特征在于，所述第一终端根据第一信息，确定第一空域发送滤波器是否失效，包括：The method according to claim 1, wherein the first terminal determines whether the first airspace transmission filter is invalid according to the first information, comprising:
    所述第一终端根据所述第一信息和第四定时器，确定所述第一空域发送滤波器是否失效。The first terminal determines whether the first airspace transmit filter is invalid according to the first information and the fourth timer.
  26. 根据权利要求25所述的方法，其特征在于，所述第一终端根据所述第一信息和第四定时器，确定所述第一空域发送滤波器是否失效，包括：The method according to claim 25, wherein the first terminal determines whether the first airspace transmission filter is invalid according to the first information and the fourth timer, comprising:
    若在所述第四定时器失效前，所述第一终端接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器未失效；和/或If the first terminal receives sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter is not invalid; and/ or
    若在所述第四定时器失效前，所述第一终端未接收到第二终端使用所述第一空域发送滤波器发送的侧行数据，确定所述第一空域发送滤波器失效。If the first terminal does not receive the sidelink data sent by the second terminal using the first airspace transmission filter before the fourth timer expires, determine that the first airspace transmission filter is invalid.
  27. 根据权利要求25或26所述的方法，其特征在于，所述方法还包括：The method according to claim 25 or 26, further comprising:
    若所述第四定时器失效前，所述第一终端接收到所述第二终端使用所述第一空域发送滤波器发送的侧行数据，所述第一终端向所述第二终端发送针对所述侧行数据的响应，并启动或重启所述第四定时器。If before the fourth timer expires, the first terminal receives the sidelink data sent by the second terminal using the first airspace transmit filter, and the first terminal sends a message to the second terminal for A response to the sidestream data, and start or restart the fourth timer.
  28. 根据权利要求27所述的方法，其特征在于，所述启动或重启所述第四定时器，包括：The method according to claim 27, wherein said starting or restarting said fourth timer comprises:
    所述第一终端停止所述第四定时器，并启动或重启所述第四定时器，其中，所述第四定时器的值根据所述第二终端发送的所述侧行数据中包括的指示信息确定。The first terminal stops the fourth timer, and starts or restarts the fourth timer, where the value of the fourth timer is based on the value included in the sidelink data sent by the second terminal. Instructions are OK.
  29. 根据权利要求27或28所述的方法，其特征在于，A method according to claim 27 or 28, wherein,
    所述第二终端发送的所述侧行数据包括直通链路保活请求信息；The sidelink data sent by the second terminal includes direct link keep-alive request information;
    所述第一终端向所述第二终端发送的针对所述侧行数据的响应包括直通链路保活响信息。The response to the sidelink data sent by the first terminal to the second terminal includes direct link keep-alive ringing information.
  30. 根据权利要求1-29中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-29, further comprising:
    若所述第一终端确定所述第一空域发送滤波器失效，所述第一终端向所述第二终端发送第二指示信息，其中，所述第二指示信息用于指示以下信息中至少一种：If the first terminal determines that the first airspace transmission filter is invalid, the first terminal sends second indication information to the second terminal, where the second indication information is used to indicate at least one of the following information kind:
    所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
    所述第二终端执行选取空域发送滤波器过程；The second terminal executes a process of selecting a spatial transmission filter;
    所述第二终端使用不同的空域发送滤波器发送多个侧行参考信号。The second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters.
  31. 根据权利要求30所述的方法，其特征在于，所述第二指示信息通过以下至少之一承载：The method according to claim 30, wherein the second indication information is carried by at least one of the following:
    侧行控制信息SCI，媒体接入控制控制元素MAC CE，PC5-无线资源控制RRC信令。Sideline control information SCI, medium access control element MAC CE, PC5-radio resource control RRC signaling.
  32. 一种无线通信的方法，其特征在于，包括：A method for wireless communication, comprising:
    第二终端使用第一空域发送滤波器向第一终端发送侧行数据；the second terminal transmits sidelink data to the first terminal by using the first airspace transmission filter;
    所述第二终端根据所述侧行数据的反馈结果，或者，所述第二终端根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效。The second terminal determines whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether a response to the sidelink data is received by the second terminal.
  33. 根据权利要求31所述的方法，其特征在于，所述第二终端根据所述侧行数据的反馈结果，确定所述第一空域发送滤波器是否失效，包括：The method according to claim 31, wherein the second terminal determines whether the first airspace transmission filter is invalid according to the feedback result of the sidelink data, comprising:
    在所述侧行数据的反馈结果为以下之一的情况下，所述第二终端确定所述第一空域发送滤波器失效：When the feedback result of the sidelink data is one of the following, the second terminal determines that the first airspace transmission filter is invalid:
    所述第二终端连续检测到K1次非连续传输DTX状态；The second terminal continuously detects K1 discontinuous transmission DTX states;
    所述第二终端连续检测到K2次否定确认NACK信息；The second terminal continuously detects K2 negative acknowledgment NACK information;
    所述第二终端连续K3次未检测到肯定确认ACK信息；The second terminal does not detect positive confirmation ACK information for K3 consecutive times;
    其中，K1、K2、K3为正整数。Wherein, K1, K2, and K3 are positive integers.
  34. 根据权利要求33所述的方法，其特征在于，所述K1、K2、K3是预定义的，或者是网络设备配置的。The method according to claim 33, characterized in that the K1, K2, and K3 are predefined or configured by network equipment.
  35. 根据权利要求33或34所述的方法，其特征在于，所述第二终端检测到DTX状态不包括如下情况中的至少之一：The method according to claim 33 or 34, wherein the second terminal detects that the DTX state does not include at least one of the following situations:
    在所述侧行数据对应的反馈信息的优先级低于第二信息的优先级的情况下，所述第二终端在需要发送所述侧行数据对应的反馈信息的时间单元上，优先发送所述第二信息，而没有接收所述侧行数据对应的反馈信息，其中，所述第二信息为上行信息或侧行信息；If the priority of the feedback information corresponding to the sidelink data is lower than the priority of the second information, the second terminal preferentially sends the feedback information corresponding to the sidelink data in a time unit the second information without receiving feedback information corresponding to the sidelink data, where the second information is uplink information or sidelink information;
    在所述侧行数据对应的反馈信息的优先级低于第三信息的优先级的情况下，所述第二终端在需要接收所述侧行数据对应的反馈信息的时间单元上，优先接收所述第三信息，而没有接收所述侧行数据的反馈信息，其中，所述第三信息为下行信息或侧行信息。When the priority of the feedback information corresponding to the sidelink data is lower than that of the third information, the second terminal preferentially receives the feedback information corresponding to the sidelink data in a time unit that needs to receive the feedback information corresponding to the sidelink data. The third information is received without receiving the feedback information of the sidelink data, where the third information is downlink information or sidelink information.
  36. 根据权利要求32-35中任一项所述的方法，其特征在于，所述第二终端激活侧行反馈。The method according to any one of claims 32-35, wherein the second terminal activates sidelink feedback.
  37. 根据权利要求32所述的方法，其特征在于，所述第二终端根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效，包括：The method according to claim 32, wherein the second terminal determines whether the first airspace transmission filter is invalid according to whether a response to the sidelink data is received, including:
    所述第二终端根据是否接收到针对所述侧行数据的响应，对第五计数器进行计数，The second terminal counts a fifth counter according to whether a response to the sidelink data is received,
    根据所述第五计数器的计数值，确定所述第一空域发送滤波器是否失效。According to the count value of the fifth counter, determine whether the first airspace transmit filter is invalid.
  38. 根据权利要求37所述的方法，其特征在于，所述方法还包括：The method according to claim 37, further comprising:
    在使用所述第一空域发送滤波器向所述第一终端发送侧行数据的情况下，所述第二终端启动或重启第五定时器，停止第六定时器。When using the first airspace transmit filter to transmit sidelink data to the first terminal, the second terminal starts or restarts the fifth timer, and stops the sixth timer.
  39. 根据权利要求38所述的方法，其特征在于，所述方法还包括：The method of claim 38, further comprising:
    若在所述第五定时器失效前，所述第二终端接收到针对所述侧行数据的响应，将所述第五计数器的计数值置零，或者重置所述第五计数器。If the second terminal receives a response to the sidelink data before the fifth timer expires, set the count value of the fifth counter to zero, or reset the fifth counter.
  40. 根据权利要求38或39所述的方法，其特征在于，所述方法还包括：The method according to claim 38 or 39, further comprising:
    若在第五定时器失效前，所述第二终端接收到针对所述侧行数据的响应，停止所述第五定时器，启动或重启所述第六定时器。If the second terminal receives a response to the sidelink data before the fifth timer expires, stop the fifth timer, and start or restart the sixth timer.
  41. 根据权利要求38-40中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 38-40, further comprising:
    若所述第五定时器失效，所述第二终端使用所述第一空域发送滤波器向所述第一终端重传所述侧行数据。If the fifth timer expires, the second terminal retransmits the sidelink data to the first terminal by using the first airspace transmit filter.
  42. 根据权利要求41所述的方法，其特征在于，所述方法还包括：The method according to claim 41, further comprising:
    将所述第五计数器的计数值加一；和/或adding one to the count value of the fifth counter; and/or
    启动或重启所述第五定时器，停止所述第六定时器。Start or restart the fifth timer, and stop the sixth timer.
  43. 根据权利要求38至42中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 38 to 42, further comprising:
    若所述第六定时器失效，所述第二终端向所述第一终端发送所述侧行数据。If the sixth timer expires, the second terminal sends the sidelink data to the first terminal.
  44. 根据权利要求37至43中任一项所述的方法，其特征在于，A method according to any one of claims 37 to 43, wherein,
    所述侧行数据包括直通链路保活请求信息；The side data includes direct link keep-alive request information;
    所述针对所述侧行数据的响应包括直通链路保活响应信息。The response to the sidelink data includes direct link keep-alive response information.
  45. 根据权利要求37至44中任一项所述的方法，其特征在于，所述根据所述第五计数器的计数值，确定所述第一空域发送滤波器是否失效，包括：The method according to any one of claims 37 to 44, wherein the determining whether the first airspace transmission filter is invalid according to the count value of the fifth counter includes:
    若所述第五计数器的计数值大于或等于第八门限，确定所述第一空域发送滤波器失效。If the count value of the fifth counter is greater than or equal to the eighth threshold, it is determined that the first airspace transmit filter is invalid.
  46. 根据权利要求32-45中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 32-45, further comprising:
    若所述第二终端确定所述第一空域发送滤波器失效，所述第二终端向所述第一终端发送第三指示信息，其中，所述第三指示信息用于指示以下信息中至少一种：If the second terminal determines that the first airspace transmission filter is invalid, the second terminal sends third indication information to the first terminal, where the third indication information is used to indicate at least one of the following information kind:
    所述第一空域发送滤波器失效；the first airspace transmit filter is deactivated;
    所述第二终端执行选取空域发送滤波器过程；The second terminal executes a process of selecting a spatial transmission filter;
    所述第二终端使用不同的空域发送滤波器发送多个侧行参考信号；The second terminal transmits multiple sidelink reference signals using different spatial domain transmit filters;
    所述第二终端将要发送用于选取目标空域发送滤波器的侧行参考信号；The second terminal is about to send a sidelink reference signal for selecting a target airspace transmit filter;
    信道状态信息CSI上报量；Channel state information CSI reporting amount;
    第二传输配置指示TCI状态信息，其中，所述第一空域发送滤波器根据第一TCI状态信息关联的CSI-RS资源确定，所述第二TCI状态信息关联的CSI-RS资源和所述第一TCI状态信息关联的CSI-RS资源不同。The second transmission configuration indicates TCI state information, wherein the first airspace transmit filter is determined according to the CSI-RS resource associated with the first TCI state information, and the CSI-RS resource associated with the second TCI state information is the same as the first TCI state information. The CSI-RS resources associated with the TCI state information are different.
  47. 根据权利要求46所述的方法，其特征在于，所述CSI上报量包括以下至少之一：The method according to claim 46, wherein the CSI reporting amount includes at least one of the following:
    信道状态信息参考信号CSI-RS资源指示CRI，CRI和参考信号接收功率RSRP，CRI和接收信号强度指示SINR，时隙资源指示信息，时隙资源指示和RSRP，时隙资源指示和SINR，不上报；Channel state information reference signal CSI-RS resource indication CRI, CRI and reference signal received power RSRP, CRI and received signal strength indication SINR, time slot resource indication information, time slot resource indication and RSRP, time slot resource indication and SINR, not reported ;
    其中，所述时隙资源指示信息用于确定所述第二终端设备发送的CSI-RS对应的时隙，或者，所述时隙资源指示信息用于确定所述第二终端设备发送的CSI-RS资源对应的索引。Wherein, the time slot resource indication information is used to determine the time slot corresponding to the CSI-RS sent by the second terminal device, or the time slot resource indication information is used to determine the CSI-RS sent by the second terminal device. The index corresponding to the RS resource.
  48. 根据权利要求46或47所述的方法，其特征在于，所述第三指示信息通过以下至少之一承载：The method according to claim 46 or 47, wherein the third indication information is carried by at least one of the following:
    侧行控制信息SCI，媒体接入控制控制元素MAC CE，PC5-无线资源控制RRC信令。Sideline control information SCI, medium access control element MAC CE, PC5-radio resource control RRC signaling.
  49. 一种终端设备，其特征在于，包括：A terminal device, characterized in that it includes:
    处理单元，用于根据第一信息，确定第一空域发送滤波器是否失效，其中，所述第一信息包括以下中的至少一项：A processing unit, configured to determine whether the first airspace transmission filter is invalid according to the first information, where the first information includes at least one of the following:
    所述终端设备是否接收到第二终端使用第一空域发送滤波器发送的侧行数据；Whether the terminal device receives the sidelink data transmitted by the second terminal using the first airspace transmission filter;
    所述终端设备对所述第二终端使用第一空域发送滤波器发送的侧行数据的测量结果；A measurement result of the sidelink data sent by the terminal device to the second terminal using the first airspace transmission filter;
    第一指示信息，其中，所述第一指示信息用于指示发生空域发送滤波器失效实例。The first indication information, wherein the first indication information is used to indicate the occurrence of an invalidation instance of the airspace transmission filter.
  50. 一种终端设备，其特征在于，包括：A terminal device, characterized in that it includes:
    通信单元，用于使用第一空域发送滤波器向第一终端发送侧行数据；a communication unit, configured to use the first airspace transmit filter to transmit sidelink data to the first terminal;
    处理单元，用于根据所述侧行数据的反馈结果，或者，所述终端设备根据是否接收到针对所述侧行数据的响应，确定所述第一空域发送滤波器是否失效。The processing unit is configured to determine whether the first airspace transmission filter is invalid according to a feedback result of the sidelink data, or according to whether the terminal device receives a response to the sidelink data.
  51. 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31中任一项所述的方法。A terminal device, characterized by comprising: a processor and a memory, the memory is used to store computer programs, the processor is used to invoke and run the computer programs stored in the memory, and execute any of the following claims 1 to 31 one of the methods described.
  52. 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31中任一项所述的方法。A chip, characterized by comprising: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 31.
  53. 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31中任一项所述的方法。A computer-readable storage medium, characterized by being used to store a computer program, the computer program causes a computer to execute the method according to any one of claims 1 to 31.
  54. 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31中任一项所述的方法。A computer program product, characterized by comprising computer program instructions, the computer program instructions cause a computer to execute the method according to any one of claims 1 to 31.
  55. 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31中任一项所述的方法。A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-31.
  56. 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32至48中任一项所述的方法。A terminal device, characterized by comprising: 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, and execute any of the following claims 32 to 48 one of the methods described.
  57. 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32至48中任一项所述的方法。A chip, characterized by comprising: a processor, configured to invoke and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 32 to 48.
  58. 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32至48中任一项所述的方法。A computer-readable storage medium, characterized by being used to store a computer program, the computer program causes a computer to execute the method according to any one of claims 32 to 48.
  59. 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32至48中任一项所述的方法。A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method as claimed in any one of claims 32 to 48.
  60. 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32至48中任一项所述的方法。A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 32-48.
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