WO2022205095A1 - Procédé de communication sans fil et dispositif terminal - Google Patents

Procédé de communication sans fil et dispositif terminal Download PDF

Info

Publication number
WO2022205095A1
WO2022205095A1 PCT/CN2021/084473 CN2021084473W WO2022205095A1 WO 2022205095 A1 WO2022205095 A1 WO 2022205095A1 CN 2021084473 W CN2021084473 W CN 2021084473W WO 2022205095 A1 WO2022205095 A1 WO 2022205095A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
terminal
drx
synchronization source
resource pool
Prior art date
Application number
PCT/CN2021/084473
Other languages
English (en)
Chinese (zh)
Inventor
冷冰雪
卢前溪
张博源
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 CN202180077341.7A priority Critical patent/CN116569644A/zh
Priority to PCT/CN2021/084473 priority patent/WO2022205095A1/fr
Publication of WO2022205095A1 publication Critical patent/WO2022205095A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a method and terminal device for wireless communication.
  • DRX Discontinuous Reception
  • Embodiments of the present application provide a wireless communication method and terminal device.
  • the synchronization source of the sending terminal changes, the DRX synchronization of both the sending and receiving terminals is realized, so that the receiving terminal can receive information sent to the sending terminal.
  • a wireless communication method which is suitable for sideline transmission between a first terminal and a second terminal, and the method includes:
  • the first terminal performs information reception on all receiving resource pools configured for the first terminal according to the DRX configuration, or receives information on the resource pool where the information is received or a receiving resource that has the same type of synchronization source as the resource pool where the information is received Information is received on the pool.
  • a method for wireless communication which is suitable for sideline transmission between a first terminal and a second terminal, and the method includes:
  • the first terminal and the second terminal keep the DRX related timer, or the first terminal and the second terminal pause or stop DRX related timer.
  • a terminal device for executing the method in the above-mentioned first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a terminal device for executing the method in the second aspect.
  • the terminal device includes a functional module for executing the method in the second aspect above.
  • 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 first aspect.
  • 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 second aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to second aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the first to second aspects above.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the first to second aspects above.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the first to second aspects above.
  • a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to second aspects.
  • the first terminal performs information reception on all the receiving resource pools configured for the first terminal according to the DRX configuration, or, in the resource pool where the information is received or the same as the resource pool where the information is received.
  • Information is received on the receiving resource pool of the synchronization source of the type. That is, for the receiving terminal, information reception is performed on all receiving resource pools according to the DRX configuration, or information reception is performed on the receiving resource pool that has received the information or the receiving resource pool that has the same type of synchronization source as the receiving resource pool, Therefore, when the synchronization source of the sending terminal changes, it can be ensured that the receiving terminal can receive the information sent by the sending terminal, and the DRX synchronization of both the sending and receiving terminals can also be realized.
  • the first terminal and the second terminal maintain the DRX related timer;
  • the second terminal suspends or stops the DRX related timer. That is, for the sending and receiving terminals, in the process of changing the synchronization source of the sending terminal, the DRX-related timer is maintained, or the DRX-related timer is suspended or stopped, so that when the synchronization source of the sending terminal changes, the DRX of both the sending and receiving terminals can be realized. Synchronization ensures that the receiving terminal can receive the information sent by the sending terminal.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic diagram of another communication system architecture to which an embodiment of the present application is applied.
  • FIG. 3 is a schematic diagram of frame/subframe edge misalignment caused by different synchronization sources provided by the present application.
  • FIG. 4 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another method for wireless communication according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of DRX synchronization during a synchronization source change process according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of DRX synchronization during a synchronization source change process according to another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of DRX synchronization during a synchronization source change process according to still another embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • 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 unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber 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 subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end 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 airplanes, 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, and 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, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • 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, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, 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 device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto 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 "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • predefined may refer to the definition 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 in future communication systems, which are not limited in this application.
  • Device-to-device communication is a D2D-based sidelink transmission technology (Sidelink, SL).
  • Sidelink Sidelink
  • the Internet of Vehicles system adopts the method of terminal-to-terminal direct communication. , so it has higher spectral efficiency and lower transmission delay.
  • FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied.
  • the transmission resources of the vehicle-mounted terminals (the vehicle-mounted terminal 121 and the vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminal transmits data on the sidelink according to the resources allocated by the base station 110 .
  • the base station 110 may allocate resources for 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 embodiments of the present application are applicable.
  • the vehicle-mounted terminals (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132 ) independently select transmission resources for data transmission on the resources of the side link.
  • the in-vehicle terminal may randomly select transmission resources, or select transmission resources by means of listening.
  • Proximity-based Services (ProSe): Device-to-device communication in version 12 (release12, Rel-12) or version 13 (release13, Rel-13) is studied for ProSe scenarios, which are mainly for public Security business.
  • the resource pool is not continuous in the time domain, so that the UE can send/receive data discontinuously on the sidelink, thereby achieving the effect of power saving.
  • V2X Internet of Vehicles
  • version 14 release14, Rel-14
  • version 15 release15, Rel-15
  • the Internet of Vehicles system has been studied for the scenario of vehicle-to-vehicle communication, which is mainly for relatively high-speed moving vehicles , Vehicle-to-person communication business.
  • power efficiency is not the main problem, but the delay of data transmission is the main problem. Therefore, the terminal equipment is required to perform continuous transmission and reception in system design.
  • FeD2D Wearable Devices
  • NR V2X is not limited to broadcast scenarios, but is further extended to unicast and multicast scenarios, and the application of V2X is studied in these scenarios.
  • NR V2X Similar to LTE V2X, NR V2X also defines two resource authorization modes, Mode 1 (corresponding to the communication system shown in Figure 1 above) and Mode 2 (corresponding to the communication system shown in Figure 2 above); further, users may In a mixed mode, that is, you can use Mode 1 to acquire resources, and you can use Mode 2 to acquire resources at the same time.
  • the resource acquisition is indicated by means of sidelink authorization, that is, the sidelink authorization indicates the corresponding Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel (PSSCH) resources time-frequency location.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • NR V2X introduces feedback-based HARQ retransmission, which is not limited to unicast communication, but also includes group broadcast communication.
  • HARQ Hybrid Automatic Repeat reQuest
  • the resource pool configuration information includes the synchronization source type allowed by the resource pool, that is, only terminals that select the synchronization source type can use the resource pool for data transmission.
  • the terminal Before performing sideline transmission, the terminal first selects a synchronization source, and according to the synchronization source type, uses a sending resource pool that allows the synchronization source type to send data. If there are multiple sending resource pools of this synchronization source type, there is no specific standardized selection criterion, but one of them is selected based on the terminal implementation.
  • the UE will discontinuously monitor the Physical Downlink Control Channel (PDCCH) according to the DRX configuration to save power.
  • the PDCCH carries the Cell Radio Network Temporary Identity (C- RNTI), cancel indication RNTI (Cancellation indication RNTI, CI-RNTI), configure scheduling RNTI (Configured Scheduling RNTI, CS-RNTI), interrupt transmission indication RNTI (Interrupted transmission indication RNTI, INT-RNTI), time slot format indication RNTI ( Slot Format Indication RNTI, SFI-RNTI), Semi-Persistent Channel State Information Radio Network Temporary Identity, SP-CSI-RNTI), Transmission Power Control Physical Uplink Control Channel RNTI (Transmit Power Control Physical Uplink Control Channel RNTI, TPC-PUCCH-RNTI), Transmit Power Control Physical Uplink Shared Channel RNTI (Transmit Power Control Physical Uplink Shared Channel RNTI, TPC-PUSCH-RNTI), Transmit Power Control Sounding Reference Signal RNTI (Transmit Power Control Sounding) Reference Signal
  • DRX Duration Timer (drx-onDurationTimer), DRX Slot Offset (drx-SlotOffset), DRX Deactivation Timer (drx-InactivityTimer), Downlink DRX Retransmission Timer (drx-RetransmissionTimerDL), Uplink DRX Retransmission Timer (drx-RetransmissionTimerUL), DRX long cycle start offset (drx-LongCycleStartOffset), DRX short cycle (drx-ShortCycle) parameters (optional): short DRX cycle (the Short DRX cycle), DRX short cycle timer ( drx-ShortCycleTimer) (optional), Downlink HARQ Round Trip Time Timer (Downlink HARQ Round Trip Time Timer, HARQ-RTT-TimerDL), Uplink DRX HARQ RTT Timer (Uplink DRX HARQ RTT, drx-HARQ-RTT- TimerUL), power saving wakeup
  • the UE will be in the DRX active state in the following cases:
  • the PDCCH indicates that there is a new transmission period.
  • the synchronization source types in the NR-V2X system include: eNB, gNB, Global Navigation Satellite System (GNSS), UE, and the internal clock of the terminal.
  • the synchronization source levels defined in the NR-V2X system are shown in Table 1 below.
  • Table 1 the smaller the priority identifier, the higher the priority.
  • the priority size can be: P0 >P1>P2>P3>P4>P5>P6>P7.
  • the priority size may be: P0'>P1'>P2'>P3'>P4'>P5'>P6'>P7'.
  • the terminal transmitting on the sideline may be located within the coverage of the cell or outside the coverage of the cell, and when within the coverage of the cell, the network can configure the gNB/eNB or GNSS as a higher priority.
  • the UE will determine the synchronization source according to different scenarios and different configurations.
  • the DRX mechanism based on the Uu interface ie, uplink and downlink transmission
  • all UEs and the network maintain downlink synchronization, so the DRX of Uu only needs to be designed for the only synchronization source based on the network.
  • the DRX mechanism based on the PC5 interface ie sidelink transmission
  • there are multiple synchronization sources including GNSS-based synchronization, gNB/eNB-based synchronization, and UE-based synchronization.
  • different Frame/subframe edges may be misaligned due to synchronization sources.
  • this application proposes a DRX synchronization solution.
  • the synchronization source of the transmitting terminal changes, it can be ensured that the receiving terminal can receive the information sent by the transmitting terminal.
  • FIG. 4 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application, which is suitable for sideline transmission between a first terminal and a second terminal.
  • the method 200 for wireless communication may be composed of Executed by the first terminal, the wireless communication method 200 may include at least part of the following contents:
  • the first terminal performs information reception on all receiving resource pools configured for the first terminal according to the DRX configuration, or, in the resource pool where the information is received or a resource pool that has the same type of synchronization source as the resource pool where the information is received Information is received on the receiving resource pool.
  • the first terminal receives information on all configured receiving resource pools, or the first terminal receives information on the resource pool where the information is received or a receiving resource that has the same type of synchronization source as the resource pool where the information is received.
  • the information is received on the pool, so that when the synchronization source is changed in the second terminal, DRX synchronization of both the sending and receiving terminals is realized, and the first terminal can receive the information sent by the second terminal.
  • the DRX configuration is directed to the sidelink between the first terminal and the second terminal.
  • the first terminal may perform information reception on the receiving resource pool according to the DRX configuration
  • the second terminal may perform information transmission on the sending resource pool according to the DRX configuration.
  • the information to be sent and received may be data, or may be a signal or other message type, which is not limited in this application.
  • the DRX configuration is pre-configured or agreed in a protocol, or the DRX configuration is configured by a network device, or the DRX configuration is configured by the second terminal.
  • the DRX configuration is configured by the network device through a system information block (System Information Block, SIB) or dedicated signaling.
  • SIB System Information Block
  • the synchronization sources before and after the change of the second terminal may be one or the other of the synchronization sources described in Table 1 above.
  • the first terminal when the first condition is satisfied, maintains the DRX-related timer; or, the first terminal suspends or stops the DRX-related timer.
  • the DRX-related timers may include, but are not limited to, at least one of the following:
  • the first condition includes at least one of the following:
  • the first terminal performs information reception on all receiving resource pools configured for the first terminal according to the DRX configuration
  • the first terminal After the first terminal receives the first information and sends the second information;
  • the first terminal After the first terminal receives the first information and sends the second information for a second duration;
  • the first information is used to indicate that the synchronization source is changed to a synchronization source of the target type, and the second information includes positive feedback for the first information.
  • the first terminal when the first terminal is in the DRX active state, the first terminal receives the first information sent by the second terminal, so as to know that the second terminal needs to change the synchronization source.
  • the first terminal In order to realize DRX synchronization, the first terminal needs to The receiving resource pool that receives the information or the receiving resource pool that has the same synchronization type as the resource pool that receives the information receives the information (the resource pool supports the synchronization source of the target type).
  • the first terminal may send positive feedback for the first information to the second terminal.
  • the first terminal when the first terminal is in the DRX active state, the first terminal can receive the information sent by the second terminal, and when the first terminal is in the DRX inactive state or the deactivated state, the first terminal cannot. Receive the information sent by the second terminal.
  • the second terminal may resend the first information if the second terminal does not receive positive feedback for the first information.
  • the specific number of retransmissions may be pre-configured or agreed in a protocol, or agreed by the first terminal and the second terminal, or configured by a network device.
  • the first duration may be pre-configured or agreed in a protocol, or the first duration is agreed between the first terminal and the second terminal, or the first duration is configured by a network device, or the first duration It is determined based on the implementation of the first terminal.
  • the second duration may be pre-configured or agreed in a protocol, or the second duration is agreed between the first terminal and the second terminal, or the second duration is configured by the network device, or the second duration It is determined based on the implementation of the first terminal.
  • the first information includes at least information of the synchronization source of the target type.
  • the first terminal performs information reception on one or more receiving resource pools supporting synchronization sources of the target type according to the first information. Therefore, when the synchronization source is changed in the second terminal, the first terminal can receive the information sent by the second terminal, and can also realize DRX synchronization of both the sending and receiving terminals.
  • the first terminal when the second condition is satisfied, continues the DRX-related timer that was previously suspended or stopped, or the first terminal restarts the DRX-related timer, or the first terminal is in the target Keep DRX active for a long time.
  • the target duration may be pre-configured or agreed in a protocol, or the target duration is agreed by the first terminal and the second terminal, or the target duration is configured by the network device, or the target duration is based on the first terminal and the second terminal.
  • the implementation of the terminal is determined.
  • the second condition includes at least one of the following:
  • the first terminal receives information on a resource pool that has received the information or a receiving resource pool that has the same type of synchronization source as the resource pool that has received the information;
  • the first terminal receives the third information and sends the fourth information
  • the third information is synchronization confirmation information
  • the fourth information is synchronization confirmation response information.
  • the first terminal when the first terminal is in the DRX active state, the first terminal receives the third information sent by the second terminal, so as to realize confirmation after the synchronization source is changed.
  • the first terminal may send the fourth information to the second terminal to respond to the synchronization confirmation information. That is, the first terminal and the second terminal exchange synchronization confirmation information, thereby realizing DRX synchronization.
  • the third duration may be pre-configured or agreed in a protocol, or the third duration is agreed by the first terminal and the second terminal, or the third duration is configured by the network device, or the third duration It is determined based on the implementation of the first terminal.
  • the fourth duration may be pre-configured or agreed in a protocol, or the fourth duration is agreed between the first terminal and the second terminal, or the fourth duration is configured by the network device, or the fourth duration It is determined based on the implementation of the first terminal.
  • the first terminal receives the fifth information sent by the second terminal; and the first terminal is in a receiving resource pool that receives the fifth information or has the same type as a receiving resource pool that receives the fifth information The information is received on the receiving resource pool of the synchronization source.
  • the second terminal when the first terminal is in the DRX active state, the second terminal sends the fifth information to the first terminal. and the first terminal performs information reception on a receiving resource pool that receives the fifth information or a receiving resource pool that has the same type of synchronization source as the receiving resource pool that receives the fifth information, so that a synchronization source change occurs at the second terminal
  • the first terminal can receive the information sent by the second terminal, and can also realize DRX synchronization between the sending and receiving terminals.
  • the fifth information includes but is not limited to at least one of the following:
  • the data information is PSSCH information.
  • the synchronization information is a Sidelink Synchronization Signal (SLSS).
  • SLSS Sidelink Synchronization Signal
  • the PC5-S information may be PC5 safety (PC5-Safety, PC5-S) information.
  • PC5-S PC5 safety
  • it can be upper layer information, NAS layer information, connection establishment request and so on.
  • the above S210 may specifically include:
  • the first terminal For each receiving resource pool, the first terminal according to the sideline DRX cycle (sl-drx-Cycle), sideline DRX start offset (s1-drx-StartOffset), sideline DRX slot offset (s1 -drx-slotOffset), determine the first DRX timer; and/or,
  • the first terminal For each receiving resource pool, when the first terminal receives the newly transmitted PSCCH or PSSCH information, or, after the first terminal receives the newly transmitted PSCCH or PSSCH information for a second time period, or, when the first terminal sends During HARQ feedback, or after the first terminal sends HARQ feedback, the first terminal starts or restarts the second DRX timer; and/or,
  • the first The terminal starts or restarts the third DRX timer.
  • the above S210 is specifically Can include:
  • the first terminal determines the sideline DRX cycle (sl-drx-Cycle), the sideline DRX start offset according to the amount (sl-drx-StartOffset), sideline DRX slot offset (sl-drx-slotOffset), to determine the first DRX timer; and/or,
  • the first terminal For the resource pool that received the information or the receiving resource pool that has the same type of synchronization source as the resource pool from which the information was received, when the first terminal receives the newly transmitted PSCCH or PSSCH information, or when the first terminal receives After the second duration of newly transmitted PSCCH or PSSCH information, or, when the first terminal sends HARQ feedback, or, after the first terminal sends HARQ feedback, the first terminal starts or restarts the second DRX timer; and/ or,
  • the first terminal After the HARQ RTT timer expires, or, after a PSCCH or PSSCH decoding failure, or, after receiving the SCI information or PSSCH information, the first terminal starts or restarts the third DRX timer.
  • the first DRX timer may be a sideline DRX duration timer (sl-drx-onDurationTimer).
  • the second DRX timer may be a sideline DRX inactivity timer (sl-drx-InactivityTimer).
  • the third DRX timer may be a sideline DRX retransmission timer (sl-drx-RetransmissionTimer).
  • the first terminal performs information reception on all the receiving resource pools configured for the first terminal according to the DRX configuration, or, in the resource pool where the information is received or the same as the resource pool where the information is received.
  • Information is received on the receiving resource pool of the synchronization source of the type.
  • the receiving terminal information reception is performed on all receiving resource pools according to the DRX configuration, or information reception is performed on the receiving resource pool that has received the information or the receiving resource pool that has the same type of synchronization source as the receiving resource pool, Therefore, when the synchronization source of the sending terminal changes, it can be ensured that the receiving terminal can receive the information sent by the sending terminal, and the DRX synchronization of both the sending and receiving terminals can also be realized.
  • the first terminal-side embodiment of the present application is described in detail above with reference to FIG. 4
  • the second terminal-side embodiment of the present application is described in detail below with reference to FIG. 5 . It should be understood that the second terminal-side embodiment is the same as the first terminal-side embodiment.
  • the embodiments correspond to each other, and for similar descriptions, reference may be made to the first terminal-side embodiment.
  • FIG. 5 is a schematic flowchart of a method 300 for wireless communication according to an embodiment of the present application, which is suitable for sideline transmission between a first terminal and a second terminal.
  • the method 300 for wireless communication may be composed of Executed by the second terminal, the wireless communication method 300 may include at least part of the following contents:
  • S310 During the process of changing the synchronization source of the second terminal from the first synchronization source to the second synchronization source, the second terminal maintains the DRX related timer, or the second terminal suspends or stops the DRX related timer.
  • the first terminal and the second terminal maintain a DRX-related timer, or the first terminal and the second terminal maintain a DRX-related timer.
  • the terminal and the second terminal suspend or stop the DRX related timer. Therefore, when the synchronization source is changed in the second terminal, DRX synchronization of both the transmitting and receiving terminals is realized, and it is ensured that the first terminal can receive the information sent by the second terminal.
  • the first synchronization source may be one of the synchronization sources described in Table 1 above, and the second synchronization source may be another one of the synchronization sources described in Table 1 above.
  • the DRX-related timers may include, but are not limited to, at least one of the following:
  • the second terminal when the second terminal maintains a DRX-related timer during the synchronization source change process, the second terminal according to the synchronization compensation value between the second synchronization source and the first synchronization source and the DRX configuration, and determine the DRX activation time of the first terminal.
  • the unit of the synchronization compensation value includes but is not limited to one of the following:
  • Subframe, slot, symbol millisecond.
  • the second terminal when the second terminal maintains a DRX-related timer during the synchronization source change process, the second terminal may perform the following operations:
  • the second terminal changes from the first synchronization source to the second synchronization source during the running of the first DRX timer, the second terminal according to the sideline DRX cycle (sl-drx-Cycle), the sideline DRX
  • the start offset (sl-drx-StartOffset) and the side-line DRX slot offset (sl-drx-slotOffset) determine the value of the first DRX timer in the transmission resource pool used for information transmission after the synchronization source is changed. runtime; and/or,
  • the second terminal changes from the first synchronization source to the second synchronization source during the running of the second DRX timer
  • the second terminal changes the first synchronization source according to the first synchronization source in the transmission resource pool used for information transmission before.
  • the start time and running duration of the DRX timer and the synchronization compensation value determine the running time of the second DRX timer in the sending resource pool used for information transmission after the synchronization source is changed.
  • the first DRX timer may be a sideline DRX duration timer (sl-drx-onDurationTimer).
  • the second DRX timer may be a sideline DRX inactivation timer (sl-drx-InactivityTimer) or a sideline DRX retransmission timer (sl-drx-RetransmissionTimer).
  • the second terminal when the first terminal is in a DRX active state, the second terminal performs information transmission on one or more transmission resource pools supporting the second synchronization source according to the DRX configuration.
  • the first terminal when the first terminal is in the DRX active state, the first terminal can receive the information sent by the second terminal, and when the first terminal is in the DRX inactive state or the deactivated state, the first terminal cannot. Receive the information sent by the second terminal.
  • the second terminal suspends or stops the DRX related timer.
  • the third condition includes at least one of the following:
  • the first information is used to indicate that the synchronization source is changed to a synchronization source of the target type, and the second information includes positive feedback for the first information.
  • the first terminal when the first terminal is in the DRX active state, the first terminal receives the first information sent by the second terminal, so as to know that the second terminal needs to change the synchronization source.
  • the first terminal In order to realize DRX synchronization, the first terminal needs to The receiving resource pool that receives the information or the receiving resource pool that has the same synchronization type as the resource pool that receives the information receives the information (the resource pool supports the synchronization source of the target type).
  • the first terminal may send positive feedback for the first information to the second terminal.
  • the first information includes at least information of the synchronization source of the target type.
  • the second terminal after sending the first information, the second terminal enters a DRX activation state, or the second terminal enters a state in which data can be received.
  • the second terminal resends the first information without receiving positive feedback for the first information.
  • the specific number of retransmissions may be pre-configured or agreed in a protocol, or agreed by the first terminal and the second terminal, or configured by a network device.
  • the fifth duration may be pre-configured or agreed in a protocol, or the fifth duration is agreed by the first terminal and the second terminal, or the fifth duration is configured by the network device, or the fifth duration It is determined based on the implementation of the second terminal.
  • the sixth duration may be pre-configured or agreed in a protocol, or the sixth duration is agreed by the first terminal and the second terminal, or the sixth duration is configured by the network device, or the sixth duration It is determined based on the implementation of the second terminal.
  • the second terminal when the fourth condition is satisfied, continues the DRX-related timer that was previously suspended or stopped, or the second terminal restarts the DRX-related timer, or the second terminal is at the target
  • the information can be sent to the first terminal within the time period.
  • the target duration may be pre-configured or agreed upon in a protocol, or the target duration may be agreed upon by the first terminal and the second terminal, or the target duration may be configured by a network device, or the target duration may be based on the second terminal.
  • the implementation of the terminal is determined.
  • the fourth condition includes at least one of the following:
  • the third information is synchronization confirmation information
  • the fourth information is synchronization confirmation response information.
  • the first terminal when the first terminal is in the DRX active state, the first terminal receives the third information sent by the second terminal, so as to realize confirmation after the synchronization source is changed.
  • the first terminal may send the fourth information to the second terminal to respond to the synchronization confirmation information. That is, the first terminal and the second terminal exchange synchronization confirmation information, thereby realizing DRX synchronization.
  • the seventh duration may be pre-configured or agreed in a protocol, or the seventh duration is agreed between the first terminal and the second terminal, or the seventh duration is configured by the network device, or the seventh duration It is determined based on the implementation of the second terminal.
  • the eighth duration may be pre-configured or agreed in a protocol, or the eighth duration may be agreed upon by the first terminal and the second terminal, or the eighth duration may be configured by the network device, or the eighth duration It is determined based on the implementation of the second terminal.
  • the second terminal suspends or stops the DRX related timer during the synchronization source change process
  • the second terminal sends fifth information to the first terminal on one or more sending resource pools supporting the second synchronization source according to the DRX configuration.
  • the first terminal receives information on a receiving resource pool that receives the fifth information or a receiving resource pool that has the same type of synchronization source as the receiving resource pool that receives the fifth information. Therefore, when the synchronization source is changed in the second terminal, the first terminal can receive the information sent by the second terminal, and can also realize DRX synchronization of both the sending and receiving terminals.
  • the fifth information includes at least one of the following:
  • the PC5-S information may be PC5 safety (PC5-Safety, PC5-S) information.
  • PC5-S PC5 safety
  • it can be upper layer information, NAS layer information, connection establishment request and so on.
  • the DRX configuration is for a sidelink between the first terminal and the second terminal.
  • the first terminal may perform information reception on the receiving resource pool according to the DRX configuration
  • the second terminal may perform information transmission on the sending resource pool according to the DRX configuration.
  • the information to be sent and received may be data, or may be a signal or other information types, which is not limited in this application.
  • the DRX configuration is pre-configured or agreed in a protocol, or the DRX configuration is configured by a network device, or the DRX configuration is configured by the first terminal.
  • the DRX configuration is configured by the network device through SIB or dedicated signaling.
  • the first terminal and the second terminal in the process of changing the synchronization source of the second terminal from the first synchronization source to the second synchronization source, the first terminal and the second terminal maintain the DRX-related timer;
  • the second terminal suspends or stops the DRX related timer. That is, for the sending and receiving terminals, in the process of changing the synchronization source of the sending terminal, the DRX-related timer is maintained, or the DRX-related timer is suspended or stopped, so that when the synchronization source of the sending terminal changes, the DRX of both the sending and receiving terminals can be realized. Synchronization ensures that the receiving terminal can receive the information sent by the sending terminal.
  • Embodiment 1 the receiving UE (ie UE2, corresponding to the above-mentioned first terminal) performs information reception on all receiving resource pools based on the DRX configuration, and the sender UE (ie, UE1, corresponding to the above-mentioned second terminal) switches the synchronization source process in the process of DRX correlation.
  • the timer doesn't stop.
  • UE1 and UE2 perform DRX synchronization by performing the procedures described in S11 to S16 below.
  • the DRX configuration is for the sidelink between UE1 and UE2.
  • the DRX configuration can be obtained by:
  • the network side is configured through SIB or proprietary signaling
  • UE2 performs information reception on all receiving resource pools configured for UE2 according to the DRX configuration.
  • UE2 determines the sideline DRX cycle (sl-drx-Cycle), sideline DRX start offset (sl-drx-StartOffset), sideline DRX slot offset (sl-drx-StartOffset) drx-slotOffset) to determine the sideline DRX duration timer (sl-drx-onDurationTimer).
  • sideline DRX cycle sl-drx-Cycle
  • sideline DRX start offset sl-drx-StartOffset
  • sideline DRX slot offset sl-drx-StartOffset
  • drx-slotOffset sideline DRX duration timer
  • the UE2 when UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information for a period of time, or , when the UE2 sends the HARQ feedback, or after the UE2 sends the HARQ feedback, the UE2 starts or restarts the sideline DRX inactivation timer (sl-drx-InactivityTimer).
  • UE2 For another example, for each receiving resource pool, after the HARQ RTT timer expires, or after PSCCH or PSSCH decoding fails, or after UE2 receives the SCI information, UE2 starts or restarts the sideline DRX retransmission timer (sl-drx -RetransmissionTimer).
  • UE1 synchronizes to a new synchronization source, and uses a transmission resource pool (Tx pool) that supports the synchronization source for transmission.
  • Tx pool transmission resource pool
  • UE1 calculates a synchronization compensation value between the old and new synchronization sources.
  • the unit of the synchronization compensation value can include one of the following:
  • Subframe, slot, symbol millisecond.
  • UE1 determines the DRX activation time of UE2 according to the synchronization compensation value and the DRX configuration.
  • the UE1 if the synchronization source is switched during the running of the sideline DRX duration timer (sl-drx-onDurationTimer), the UE1 according to the sideline DRX cycle (sl-drx-Cycle), the sideline DRX start offset (sl-drx -StartOffset), sideline DRX slot offset (sl-drx-slotOffset), to determine the running time of sl-drx-onDurationTimer in the new Tx pool.
  • the sideline DRX duration timer sl-drx-onDurationTimer
  • UE1 determines the synchronization compensation value, the sl-drx-InactivityTimer on time on the original Tx pool, and the sl-drx-InactivityTimer value. The runtime of the sl-drx-InactivityTimer in the new Tx pool.
  • UE1 determines the synchronization compensation value, the sl-drx-RetransmissionTimer on time on the original Tx pool, and the sl-drx-RetransmissionTimer value. The runtime of the sl-drx-RetransmissionTimer in the new Tx pool.
  • UE1 sends information to UE2 within the DRX activation time of UE2, and continues to transmit information in the new Tx pool based on the DRX configuration.
  • the receiving UE (ie UE2, corresponding to the above-mentioned first terminal), based on the DRX configuration, receives the information on the receiving resource pool or the same synchronization source as the resource pool to receive the information, and the sending UE (ie UE1, corresponding to the resource pool) receives information.
  • the above-mentioned second terminal informs the receiving UE that the synchronization source changes during the process of switching the synchronization source, and the receiving UE synchronizes the receiving resource pool (Rx pool) and then synchronizes the DRX.
  • UE1 and UE2 perform DRX synchronization by performing the procedures described in the following S21 to S31.
  • the DRX configuration is for the sidelink between UE1 and UE2.
  • the DRX configuration can be obtained by:
  • the network side is configured through SIB or proprietary signaling
  • UE2 performs a discontinuous reception operation according to the DRX configuration on the receiving resource pool (Rx pool) where the data is received, or on the same Rx pool as the Rx pool synchronization source according to the DRX configuration.
  • Rx pool receiving resource pool
  • UE2 determines the sideline DRX cycle (sl-drx-Cycle), sideline DRX start offset (sl-drx-StartOffset), sideline DRX slot offset (sl-drx-StartOffset) drx-slotOffset) to determine the sideline DRX duration timer (sl-drx-onDurationTimer).
  • sideline DRX cycle sl-drx-Cycle
  • sideline DRX start offset sl-drx-StartOffset
  • sideline DRX slot offset sl-drx-StartOffset
  • drx-slotOffset sideline DRX duration timer
  • the UE2 when UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information for a period of time, or , when the UE2 sends the HARQ feedback, or after the UE2 sends the HARQ feedback, the UE2 starts or restarts the sideline DRX inactivation timer (sl-drx-InactivityTimer).
  • UE2 For another example, for each receiving resource pool, after the HARQ RTT timer expires, or after PSCCH or PSSCH decoding fails, or after UE2 receives the SCI information, UE2 starts or restarts the sideline DRX retransmission timer (sl-drx -RetransmissionTimer).
  • UE1 sends synchronization source change notification information to UE2.
  • the synchronization source change notification information includes new synchronization source synchronization information.
  • the synchronization source change notification information needs to be sent within the UE2DRX activation period.
  • UE1 after sending the synchronization source change notification information, UE1 enters a DRX active state (if DRX is configured) or a data-receivable state and waits for feedback information from UE2.
  • UE2 receives the synchronization source change notification information and gives feedback to UE1.
  • UE1 receives the positive feedback from UE2, and suspends or stops the DRX related timer.
  • UE1 in the case that UE1 does not receive positive feedback, UE1 retransmits the synchronization source change notification information.
  • the DRX-related timers may include, but are not limited to, at least one of the following:
  • UE2 uses the Rx pool that supports the new synchronization source of UE1 to receive according to the indication of UE1 (that is, the new synchronization source indicated in the synchronization source change notification information).
  • the UE1 continues the DRX-related timer, or restarts the DRX-related timer, or keeps the DRX active state for a period of time.
  • UE2 continues the DRX-related timer, or restarts the DRX-related timer, or keeps the DRX active state for a period of time.
  • the receiving UE receives the information based on the DRX configuration and receives the information on the receiving resource pool or the same synchronization source as the resource pool.
  • the sender UE ie, UE1, corresponding to the above-mentioned second terminal
  • UE1 and UE2 perform DRX synchronization by executing the procedures described in S41 to S46 below.
  • the DRX configuration is for the sidelink between UE1 and UE2.
  • the DRX configuration can be obtained by:
  • the network side is configured through SIB or proprietary signaling
  • UE2 performs a discontinuous reception operation according to the DRX configuration on the Rx pool that receives the data, or on the same Rx pool as the Rx pool synchronization source according to the DRX configuration.
  • UE2 determines the sideline DRX cycle (sl-drx-Cycle), sideline DRX start offset (sl-drx-StartOffset), sideline DRX slot offset (sl-drx-StartOffset) drx-slotOffset) to determine the sideline DRX duration timer (sl-drx-onDurationTimer).
  • sideline DRX cycle sl-drx-Cycle
  • sideline DRX start offset sl-drx-StartOffset
  • sideline DRX slot offset sl-drx-StartOffset
  • drx-slotOffset sideline DRX duration timer
  • the UE2 when UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information, or, after UE2 receives newly transmitted PSCCH or PSSCH information for a period of time, or , when the UE2 sends the HARQ feedback, or after the UE2 sends the HARQ feedback, the UE2 starts or restarts the sideline DRX inactivation timer (sl-drx-InactivityTimer).
  • UE2 For another example, for each receiving resource pool, after the HARQ RTT timer expires, or after PSCCH or PSSCH decoding fails, or after UE2 receives the SCI information, UE2 starts or restarts the sideline DRX retransmission timer (sl-drx -RetransmissionTimer).
  • the DRX-related timers may include, but are not limited to, at least one of the following:
  • UE1 sends information to UE2 after waiting for UE2 to enter the DRX activation state, and the information may be:
  • PSSCH information data information, such as PSSCH information
  • Synchronization information such as SLSS information
  • UE2 receives the information in the Rx pool or the same Rx pool as the synchronization source of the Rx pool according to the DRX configuration.
  • FIG. 9 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Applicable to sideline transmission between the first terminal and the second terminal, the terminal device 400 is the first terminal. As shown in FIG. 9 , the terminal device 400 includes:
  • the communication unit 410 is configured to receive information on all the receiving resource pools configured for the first terminal according to the DRX configuration of the discontinuous reception, or, in the resource pool where the information is received or a resource pool of the same type as the resource pool where the information is received. Information is received on the receiving resource pool of the synchronization source.
  • the terminal device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to maintain the DRX-related timer; or, the processing unit 420 is configured to suspend or stop the DRX-related timer.
  • the first condition includes at least one of the following:
  • the first terminal performs information reception on all receiving resource pools configured for the first terminal according to the DRX configuration
  • the first terminal After the first terminal receives the first information and sends the second information;
  • the first terminal After the first terminal receives the first information and sends the second information for a second duration;
  • the first information is used to indicate that the synchronization source is changed to a synchronization source of the target type, and the second information includes positive feedback for the first information.
  • the first information includes at least information of the synchronization source of the target type.
  • the processing unit 420 is further configured to receive information on one or more receiving resource pools supporting the synchronization source of the target type according to the first information.
  • the terminal device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to continue the DRX-related timer that was previously suspended or stopped, or the processing unit 420 is configured to restart the DRX-related timer, or the processing unit 420 is configured to restart the DRX-related timer at the target Keep DRX active for a long time.
  • the second condition includes at least one of the following:
  • the first terminal receives information on a resource pool that has received the information or a receiving resource pool that has the same type of synchronization source as the resource pool that has received the information;
  • the first terminal receives the third information and sends the fourth information
  • the third information is synchronization confirmation information
  • the fourth information is synchronization confirmation response information.
  • the first terminal is in a DRX active state
  • the communication unit 410 is further configured to receive fifth information sent by the second terminal;
  • the communication unit 410 is further configured to receive information on a receiving resource pool that receives the fifth information or a receiving resource pool that has the same type of synchronization source as the receiving resource pool that receives the fifth information.
  • the fifth information includes at least one of the following:
  • the first terminal performs information reception on all receiving resource pools configured for the first terminal according to the DRX configuration
  • the terminal device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to determine the first DRX timer according to the sideline DRX cycle, the sideline DRX start offset, and the sideline DRX time slot offset; and/or,
  • the processing unit 420 is configured to start or restart the second DRX timer; and/or,
  • the processing unit 420 For each receiving resource pool, after the HARQ round-trip transmission time RTT timer expires, or after PSCCH or PSSCH decoding fails, or after receiving sideline control information SCI information or PSSCH information, the processing unit 420 is used for Start or restart the third DRX timer.
  • the first terminal performs information reception on a resource pool that receives the information or a receiving resource pool that has the same type of synchronization source as the resource pool where the information is received, and the terminal device 400 further includes: processing unit 420, wherein,
  • the processing unit 420 is configured to determine the sideline DRX cycle, the sideline DRX start offset, the sideline DRX the slot offset, determining the first DRX timer; and/or,
  • the processing unit 420 is configured to start or restart the second DRX timer; and / or,
  • the processing unit 420 is configured to start or restart the third DRX timer.
  • the DRX configuration is for a sidelink between the first terminal and the second terminal.
  • the DRX configuration is pre-configured or agreed in a protocol, or the DRX configuration is configured by a network device, or the DRX configuration is configured by the second terminal.
  • 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 the various units in the terminal device 400 are to achieve the one shown in FIG. 4 , respectively.
  • the corresponding process of the first terminal in the method 200 is not repeated here for brevity.
  • FIG. 10 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. It is suitable for sideline transmission between the first terminal and the second terminal.
  • the terminal device 500 is the second terminal. As shown in FIG. 10 , the terminal device 500 includes:
  • the processing unit 510 is configured to maintain the discontinuous reception DRX-related timer, or suspend or stop the DRX-related timer, during the process of changing the synchronization source of the second terminal from the first synchronization source to the second synchronization source.
  • the second terminal maintains a DRX-related timer during the synchronization source change process
  • the processing unit 510 is further configured to determine the DRX activation time of the first terminal according to the synchronization compensation value and the DRX configuration between the second synchronization source and the first synchronization source.
  • the unit of the synchronization compensation value includes one of the following:
  • Subframe, slot, symbol millisecond.
  • the processing unit 510 is further configured to: row DRX start offset, side row DRX time slot offset, determine the running time of the first DRX timer in the transmission resource pool used for information transmission after the synchronization source is changed; and/or,
  • the processing unit 510 is further configured to change the sending resource pool used for information sending before according to the synchronization source
  • the start time and running duration of the second DRX timer in the , and the synchronization compensation value determine the running time of the second DRX timer in the sending resource pool used for information transmission after the synchronization source is changed.
  • the first terminal is in a DRX active state
  • the terminal device 500 further includes: a communication unit 520, wherein:
  • the communication unit 520 is configured to send information on one or more sending resource pools supporting the second synchronization source according to the DRX configuration.
  • the processing unit 510 is specifically used for:
  • the DRX related timer is suspended or stopped.
  • the third condition includes at least one of the following:
  • the first information is used to indicate that the synchronization source is changed to a synchronization source of the target type, and the second information includes positive feedback for the first information.
  • the first information includes at least information of the synchronization source of the target type.
  • the second terminal after sending the first information, the second terminal enters a DRX activation state, or the second terminal enters a state in which data can be received.
  • the communication unit 520 is further configured to resend the first information in the event that no positive feedback for the first information is received.
  • the processing unit 510 when the fourth condition is satisfied, is further configured to continue the DRX-related timer that was previously suspended or stopped, or the processing unit 510 is further configured to restart the DRX-related timer, or, The second terminal may send information to the first terminal within the target duration.
  • the fourth condition includes at least one of the following:
  • the third information is synchronization confirmation information
  • the fourth information is synchronization confirmation response information.
  • the second terminal suspends or stops the DRX related timer during the synchronization source change process
  • the terminal device 500 further includes: a communication unit 520, wherein,
  • the communication unit 520 After the synchronization source of the second terminal is changed from the first synchronization source to the second synchronization source, and the first terminal is in the DRX active state, the communication unit 520 is configured to be configured in a DRX-enabled device supporting the second synchronization source according to the DRX configuration.
  • the fifth information is sent to the first terminal on one or more sending resource pools.
  • the fifth information includes at least one of the following:
  • the DRX configuration is for a sidelink between the first terminal and the second terminal.
  • the DRX configuration is pre-configured or agreed in a protocol, or the DRX configuration is configured by a network device, or the DRX configuration is configured by the first terminal.
  • 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 the various units in the terminal device 500 are respectively for the purpose of realizing the one shown in FIG. 5 .
  • the corresponding process of the second terminal in the method 300 is not repeated here for brevity.
  • FIG. 11 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. 11 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 also include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
  • the memory 620 may be a separate 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, may send information or data to other devices, or Receive information or data sent by other devices.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 600 may specifically be the terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the first terminal in each method of the embodiments of the present application. For brevity, here No longer.
  • the communication device 600 may specifically be the terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the second terminal in each method of the embodiments of the present application. For brevity, here No longer.
  • FIG. 12 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 700 shown in FIG. 12 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 apparatus 700 may also include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the apparatus 700 may also include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the first terminal in each method of the embodiments of the present application. For the sake of brevity, details are not repeated here. .
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the second terminal in each method of the embodiments of the present application, which is not repeated here for brevity .
  • the devices mentioned in the embodiments of the present application may also be chips.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 13 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 13 , the communication system 800 includes a first terminal 810 and a second terminal 820 .
  • the first terminal 810 can be used to implement the corresponding functions implemented by the first terminal in the above method
  • the second terminal 820 can be used to implement the corresponding functions implemented by the second terminal in the above method.
  • brevity in This will not be repeated here.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction 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 Programming 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 conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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 this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • 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) and so on. 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.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application, for the sake of brevity , and will not be repeated here.
  • the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the second terminal in each method of the embodiments of the present application. For the sake of brevity , and will not be repeated here.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the terminal device in the embodiments 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 embodiments of the present application. For brevity, It is not repeated here.
  • the computer program product may be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the second terminal in each method of the embodiments of the present application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the second terminal in each method of the embodiments of the present application.
  • the embodiments of the present application also provide a computer program.
  • the computer program may be applied to the terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the first terminal in each method of the embodiments of the present application , and are not repeated here for brevity.
  • the computer program may be applied to the terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the second terminal in each method of the embodiments of the present application , for brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus 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 may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Abstract

La présente demande porte, selon les modes de réalisation, sur un procédé de communication sans fil et sur un dispositif terminal, le procédé consistant : dans le cas où il existe de multiples sources de synchronisation dans une communication de liaison latérale, lorsque la source de synchronisation d'un terminal émetteur change, à mettre en œuvre une synchronisation de réception DRX entre des terminaux d'envoi et de réception pour s'assurer que le terminal de réception peut recevoir les informations envoyées par le terminal d'envoi. Le procédé de communication sans fil selon la présente invention est utilisé pour une communication de liaison latérale entre un premier terminal et un second terminal et comprend l'étape suivante : sur la base de la configuration de réception DRX, un premier terminal reçoit des informations sur l'ensemble des groupes de ressources de réception configurés pour le premier terminal, ou reçoit des informations sur un groupe de ressources qui a reçu des informations, ou sur un groupe de ressources de réception ayant le même type de source de synchronisation que le groupe de ressources qui a reçu des informations.
PCT/CN2021/084473 2021-03-31 2021-03-31 Procédé de communication sans fil et dispositif terminal WO2022205095A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180077341.7A CN116569644A (zh) 2021-03-31 2021-03-31 无线通信的方法及终端设备
PCT/CN2021/084473 WO2022205095A1 (fr) 2021-03-31 2021-03-31 Procédé de communication sans fil et dispositif terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/084473 WO2022205095A1 (fr) 2021-03-31 2021-03-31 Procédé de communication sans fil et dispositif terminal

Publications (1)

Publication Number Publication Date
WO2022205095A1 true WO2022205095A1 (fr) 2022-10-06

Family

ID=83455461

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/084473 WO2022205095A1 (fr) 2021-03-31 2021-03-31 Procédé de communication sans fil et dispositif terminal

Country Status (2)

Country Link
CN (1) CN116569644A (fr)
WO (1) WO2022205095A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116828586A (zh) * 2023-08-30 2023-09-29 芯迈微半导体(上海)有限公司 一种终端在待机态下的同步方法及装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107211430A (zh) * 2015-01-23 2017-09-26 Lg电子株式会社 在d2d通信系统中选择用于d2d ue的副链路授权的方法及其装置
CN107925859A (zh) * 2015-08-07 2018-04-17 夏普株式会社 终端装置、基站装置、通信系统、测定方法以及集成电路
EP3334207A1 (fr) * 2015-08-07 2018-06-13 Sharp Kabushiki Kaisha Dispositif terminal, dispositif de station de base, système de communication, procédé de mesure, et circuit intégré
CN109565769A (zh) * 2016-08-12 2019-04-02 瑞典爱立信有限公司 用于执行装置到装置操作的技术
CN111480391A (zh) * 2020-03-13 2020-07-31 北京小米移动软件有限公司 直连链路数据传输方法、装置及存储介质
CN111867047A (zh) * 2014-05-09 2020-10-30 太阳专利信托公司 一种用户设备、方法和集成电路

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111867047A (zh) * 2014-05-09 2020-10-30 太阳专利信托公司 一种用户设备、方法和集成电路
CN107211430A (zh) * 2015-01-23 2017-09-26 Lg电子株式会社 在d2d通信系统中选择用于d2d ue的副链路授权的方法及其装置
CN107925859A (zh) * 2015-08-07 2018-04-17 夏普株式会社 终端装置、基站装置、通信系统、测定方法以及集成电路
EP3334207A1 (fr) * 2015-08-07 2018-06-13 Sharp Kabushiki Kaisha Dispositif terminal, dispositif de station de base, système de communication, procédé de mesure, et circuit intégré
CN109565769A (zh) * 2016-08-12 2019-04-02 瑞典爱立信有限公司 用于执行装置到装置操作的技术
CN111480391A (zh) * 2020-03-13 2020-07-31 北京小米移动软件有限公司 直连链路数据传输方法、装置及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "Alignment of DRX wake up times", 3GPP DRAFT; R2-2008988, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic meeting; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942036 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116828586A (zh) * 2023-08-30 2023-09-29 芯迈微半导体(上海)有限公司 一种终端在待机态下的同步方法及装置
CN116828586B (zh) * 2023-08-30 2023-11-14 芯迈微半导体(上海)有限公司 一种终端在待机态下的同步方法及装置

Also Published As

Publication number Publication date
CN116569644A (zh) 2023-08-08

Similar Documents

Publication Publication Date Title
CN113728697B (zh) 无线通信方法和终端设备
US20230224091A1 (en) Wireless communication method and device
US20230337320A1 (en) Wireless communication method and terminal device
WO2022205095A1 (fr) Procédé de communication sans fil et dispositif terminal
US20240023015A1 (en) Sidelink transmission method and terminal
WO2023056604A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de réseau
WO2022067547A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif réseau
WO2022067729A1 (fr) Procédé de réception discontinue, dispositif terminal et dispositif de réseau
WO2022233033A1 (fr) Procédé et dispositif de communication sans fil
WO2022233031A1 (fr) Procédé de communication sans fil et dispositifs terminaux
WO2022252218A1 (fr) Procédé et dispositif de sélection de ressource
WO2022205346A1 (fr) Procédé de commutation de groupe d'ensembles d'espaces de recherche (sssg) par un dispositif de terminal, dispositif de terminal et dispositif de réseau
WO2023102788A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de réseau
WO2022165843A1 (fr) Procédé de transmission de liaison latérale et terminal
WO2022261975A1 (fr) Procédé de communication sans fil et dispositif terminal
WO2022193198A1 (fr) Procédé de demande de ressource de liaison latérale, dispositif terminal et dispositif de réseau
WO2022252213A1 (fr) Procédé de communication sans fil et dispositif
WO2022151277A1 (fr) Procédé de communication appliqué à un mécanisme de réception discontinue, et appareil associé
WO2023133745A1 (fr) Procédés de communication sans fil, dispositifs terminaux et dispositifs de réseau
WO2022027669A1 (fr) Procédé de transmission de rétroinformations, dispositif de terminal et dispositif de réseau
WO2024016342A1 (fr) Procédés et terminaux d'établissement de connexion
WO2024065137A1 (fr) Procédé d'acquisition d'informations de configuration, procédé de transfert d'informations de configuration et équipement terminal
WO2023115565A1 (fr) Procédé de communication sans fil, dispositif terminal, dispositif de réseau d'accès et dispositif de réseau central

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21933766

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202180077341.7

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21933766

Country of ref document: EP

Kind code of ref document: A1