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WO2022205095A1 - 无线通信的方法及终端设备 - Google Patents

无线通信的方法及终端设备 Download PDF

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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
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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)
French (fr)
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 PCT/CN2021/084473 priority Critical patent/WO2022205095A1/zh
Priority to CN202180077341.7A priority patent/CN116569644A/zh
Publication of WO2022205095A1 publication Critical patent/WO2022205095A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/23Manipulation of direct-mode connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous 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 .

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Abstract

本申请实施例提供了一种无线通信的方法及终端设备,在侧行通信中存在多个同步源的情况下,发送终端同步源变化时,实现收发终端双方的DRX同步,保证接收终端能够接收到发送终端发送的信息。该无线通信的方法,适用于第一终端与第二终端之间的侧行传输,包括:该第一终端根据DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。

Description

无线通信的方法及终端设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信的方法及终端设备。
背景技术
在侧行通信(sidelink)中,可能存在多个同步源,不同的同步源导致帧或子帧的边缘可能不对齐。当发送终端的同步场景或配置发生变化而需要变换同步源时,发送终端与接收终端如何进行非连续接收(Discontinuous Reception,DRX)同步,是一个亟待解决的问题。
发明内容
本申请实施例提供了一种无线通信的方法及终端设备,在侧行通信中存在多个同步源的情况下,发送终端同步源变化时,实现收发终端双方的DRX同步,保证接收终端能够接收到发送终端发送的信息。
第一方面,提供了一种无线通信的方法,适用于第一终端与第二终端之间的侧行传输,该方法包括:
该第一终端根据DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。
第二方面,提供了一种无线通信的方法,适用于第一终端与第二终端之间的侧行传输,该方法包括:
在该第二终端的同步源从第一同步源变更为第二同步源的过程中,该第一终端和第二终端保持DRX相关定时器,或者,该第一终端和第二终端暂停或停止DRX相关定时器。
第三方面,提供了一种终端设备,用于执行上述第一方面中的方法。
具体地,该终端设备包括用于执行上述第一方面中的方法的功能模块。
第四方面,提供了一种终端设备,用于执行上述第二方面中的方法。
具体地,该终端设备包括用于执行上述第二方面中的方法的功能模块。
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,执行上述第一方面中的方法。
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,执行上述第二方面中的方法。
第七方面,提供了一种装置,用于实现上述第一方面至第二方面中的任一方面中的方法。
具体地,该装置包括: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中的方法。
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中的方法。
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中的方法。
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中的方法。
通过上述第一方面的技术方案,第一终端根据DRX配置,在配置给第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。也即,对于接收终端,按照DRX配置在所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,从而在发送终端同步源变化时,能够保证接收终端能够接收到发送终端发送的信息,也可以实现收发终端双方的DRX同步。
通过上述第二方面的技术方案,在第二终端的同步源从第一同步源变更为第二同步源的过程中,第一终端和第二终端保持DRX相关定时器;或者,第一终端和第二终端暂停或停止DRX相关定时器。也即,对于发送和接收终端,在发送终端同步源变更的过程中,保持DRX相关定时器,或者,暂停或停止DRX相关定时器,从而在发送终端同步源变化时,实现收发终端双方的DRX同步,保证接收终端能够接收到发送终端发送的信息。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是本申请实施例应用的另一种通信系统架构的示意性图。
图3是本申请提供的一种不同同步源导致帧/子帧边缘不对齐的示意性图。
图4是根据本申请实施例提供的一种无线通信的方法的示意性流程图。
图5是根据本申请实施例提供的另一种无线通信的方法的示意性流程图。
图6是根据本申请一个实施例的同步源变更过程中DRX同步的示意性流程图。
图7是根据本申请另一个实施例的同步源变更过程中DRX同步的示意性流程图。
图8是根据本申请再一个实施例的同步源变更过程中DRX同步的示意性流程图。
图9是根据本申请实施例提供的一种终端设备的示意性框图。
图10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。
图11是根据本申请实施例提供的一种通信设备的示意性框图。
图12是根据本申请实施例提供的一种装置的示意性框图。
图13是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(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、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”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。
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系统中的相关协议,本申请对此不做限定。
设备到设备通信是基于D2D的一种侧行链路传输技术(Sidelink,SL),与传统的蜂窝系统中通信数据通过基站接收或者发送的方式不同,车联网系统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。
图1是本申请实施例适用的一种通信系统的示意图。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。
图2是本申请实施例适用的另一种通信系统的示意图。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。
为便于更好的理解本申请实施例,对本申请相关的术语进行说明。
临近业务(Proximity-based Services,ProSe):在版本12(release12,Rel-12)或版本13(release13,Rel-13)中设备到设备通信,是针对ProSe的场景进行了研究,其主要针对公共安全类的业务。
在ProSe中,通过配置资源池在时域上的位置,例如资源池在时域上非连续,达到UE在侧行链路上非连续发送/接收数据,从而达到省电的效果。
车联网(V2X):在版本14(release14,Rel-14)或版本15(release15,Rel-15)中,车联网系统针对车车通信的场景进行了研究,其主要面向相对高速移动的车车、车人通信的业务。在V2X中,由于车载系统具有持续的供电,因此功率效率不是主要问题,而数据传输的时延是主要问题,因此在系统设计上要求终端设备进行连续的发送和接收。
可穿戴设备(FeD2D):在Rel-14中,这个场景对于可穿戴设备通过手机接入网络的场景进行了研究,其主要面向是低移动速度以及低功率接入的场景。在FeD2D中,在预研阶段3GPP结论为基站可以通过一个中继(relay)终端去配置远端(remote)终端的DRX参数。
为便于更好的理解本申请实施例,对本申请相关的NR V2X进行说明。
NR V2X在LTE V2X的基础上,不局限于广播场景,而是进一步拓展到了单播和组播的场景,在这些场景下研究V2X的应用。
类似于LTE V2X,NR V2X也会定义模式1(对应于上述图1所示的通信系统)和模式2(对应于上述图2所示的通信系统)两种资源授权模式;更进一步,用户可能处在一个混合的模式下,即既可以使用模式1进行资源的获取,又同时可以使用模式2进行资源的获取。该资源获取通过侧行链路授权的方式指示,即侧行链路授权指示相应的物理侧行控制信道(Physical Sidelink Control Channel,PSCCH)与物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)资源的时频位置。
不同于LTE V2X,除了无反馈的、UE自主发起的混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)重传,NR V2X引入了基于反馈的HARQ重传,不限于单播通信,也包括组播通信。
与LTE V2X相同,在NR V2X中,由于车载系统具有持续的供电,因此功率效率不是主要问题,而数据传输的时延是主要问题,因此在系统设计上要求终端设备进行连续的发送和接收。
为便于更好的理解本申请实施例,对本申请相关的基于不同同步源的资源池选择方式进行说明。
在资源池配置信息中包括该资源池允许的同步源类型,即只有选取该同步源类型的终端才能使用该资源池进行数据发送。终端在进行侧行传输前,首先选取同步源,根据该同步源类型,使用允许该同步源类型的发送资源池进行数据发送。如果允许该同步源类型的发送资源池有多个时,没有具体的标准化选取准则,而是基于终端实现选取其中的一个。
为便于更好的理解本申请实施例,对本申请相关的DRX进行说明。
UE会根据DRX配置不连续的监控物理下行控制信道(Physical Downlink Control Channel,PDCCH)以达到省电的目的,当PDCCH中携带与UE对应的小区无线网络临时标识(Cell Radio Network Temporary Identity,C-RNTI),取消指示RNTI(Cancellation indication RNTI,CI-RNTI),配置调度RNTI(Configured Scheduling RNTI,CS-RNTI),中断传输指示RNTI(Interrupted transmission indication RNTI,INT-RNTI),时隙格式指示RNTI(Slot Format Indication RNTI,SFI-RNTI),半持续信道状态信息无线网络临时标识(Semi-Persistent Channel State Information Radio Network Temporary Identity,SP-CSI-RNTI),传输功率控制物理上行控制信道RNTI(Transmit Power Control Physical Uplink Control Channel RNTI,TPC-PUCCH-RNTI),传输功率控制物理上行共享信道RNTI(Transmit Power Control Physical Uplink Shared Channel RNTI,TPC-PUSCH-RNTI),传输功率控制探测参考信号RNTI(Transmit Power Control Sounding Reference Signal RNTI,TPC-SRS-RNTI)和人工智能RNTI(Artificial Intelligence RNTI,AI-RNTI)时,UE会根据控制信息做出对应DRX操作。网络通过配置一系列参数来控制UE的DRX行为,这些参数包括:
DRX持续定时器(drx-onDurationTimer),DRX时隙偏移(drx-SlotOffset),DRX去激活定时器(drx-InactivityTimer),下行DRX重传定时器(drx-RetransmissionTimerDL),上行DRX重传定时器(drx-RetransmissionTimerUL),DRX长周期起始偏移(drx-LongCycleStartOffset),DRX短周期(drx-ShortCycle)参数(可选地):短DRX周期(the Short DRX cycle),DRX短周期定时器(drx-ShortCycleTimer)(可选地),下行HARQ往返传输时间定时器(Downlink HARQ Round Trip Time Timer,HARQ-RTT-TimerDL),上行DRX HARQ RTT定时器(Uplink DRX HARQ RTT,drx-HARQ-RTT-TimerUL),节能唤醒(Power Saving Wakeup,ps-Wakeup)(可选地),节能传输其他周期性信道状态信息(Power Saving Transmit Other Periodic Channel State Information,ps-TransmitOtherPeriodicCSI)(可选地),节能传输周期性的层1参考信号接收功率(Power Saving Transmit Periodic L1 Reference Signal Received Power,ps-TransmitPeriodicL1-RSRP)(可选地)。
其中,如下情况下UE将处于DRX激活状态:
drx-onDurationTimer或drx-InactivityTimer运行期间;
drx-RetransmissionTimerDL或drx-RetransmissionTimerUL运行期间;
随机接入竞争解决定时器(ra-ContentionResolutionTimer)或消息B响应窗(msgB-ResponseWindow)运行期间;
有未被处理的调度请求(Scheduling Request,SR);
PDCCH指示有新的传输期间。
为便于更好的理解本申请实施例,对本申请相关的侧行链路同步技术进行说明。
NR-V2X系统中的同步源类型包括:eNB,gNB,全球导航卫星系统(Global Navigation Satellite System,GNSS),UE,终端内部时钟。NR-V2X系统中定义的各同步源等级如下表1所示,在表1中,优先级标识越小代表优先级越高,例如对于GNSS被配置为最高优先级,优先级大小可以是:P0>P1>P2>P3>P4>P5>P6>P7。例如对于gNB/eNB被配置为最高优先级,优先级大小可以是:P0’>P1’>P2’>P3’>P4’>P5’>P6’>P7’。
表1 NR-V2X系统同步优先级
Figure PCTCN2021084473-appb-000001
侧行传输的终端可能位于小区覆盖范围内或小区覆盖范围外,并且在小区覆盖范围内时,网络可以通过配置gNB/eNB或GNSS为更高优先级。UE会根据不同的场景以及不同的配置情况确定同步源。
在基于Uu接口(即上下行传输)的DRX机制中,所有UE和网络保持下行同步,因此Uu的DRX只需要针对基于网络的唯一同步源进行设计。在基于PC5接口(即侧行(sidelink)传输)的DRX机制中,存在多个同步源,包含基于GNSS的同步,基于gNB/eNB的同步,基于UE的同步,如图3所示,不同的同步源导致的帧/子帧边缘可能不对齐。
在一个sidelink系统中,当发送UE的同步场景或配置发生变化而需要变换同步源,发送UE的同步源变化后,其会根据新同步源在支持新同步源的发送资源池(Tx pool)内进行发送,而接收UE由于不知道该变化继续根据原同步源进行DRX接收操作,由此导致发送UE与接收UE之间的DRX机制不同步,进而引起数据传输失败。
基于上述问题,本申请提出了一种DRX同步的方案。在侧行通信中存在多个同步源的情况下,发送终端同步源变化时,能够保证接收终端能够接收到发送终端发送的信息。此外,也可以实现收发终端双方的DRX同步。
以下通过具体实施例详述本申请的技术方案。
图4是根据本申请实施例的无线通信的方法200的示意性流程图,适用于第一终端与第二终端之间的侧行传输,如图4所示,该无线通信的方法200可以由第一终端执行,该无线通信的方法200可以包括如下内容中的至少部分内容:
S210,该第一终端根据DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。
在本申请实施例中,第一终端在配置的所有接收资源池上进行信息接收,或者,第一终端在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,从而,在第二终端发生同步源变换的情况下,实现收发终端双方的DRX同步,第一终端能够接收到第二终端发送的信息。
在本申请实施例中,该DRX配置针对第一终端与第二终端之间的侧行链路。例如,该第一终端可以根据该DRX配置在接收资源池上进行信息接收,以及该第二终端可以根据该DRX配置在发送资源池上进行信息发送。
在本申请实施例中,收发的信息可以是数据,也可以是信号或其他消息类型,本申请对此并不限定。
在一些实施例中,该DRX配置为预配置或协议约定的,或者,该DRX配置为网络设备配置的,或者,该DRX配置为该第二终端配置的。
例如,该DRX配置为网络设备通过系统信息块(System Information Block,SIB)或者专用信令 配置的。
在一些实施例中,第二终端变化前后的同步源可以是上述表1中所述的同步源中的一种和另一种。
在一些实施例中,在满足第一条件的情况下,该第一终端保持DRX相关定时器;或者,该第一终端暂停或停止DRX相关定时器。
在一些实施例中,DRX相关定时器可以包括但不限于以下至少一种:
侧行DRX持续定时器(sl-drx-onDurationTimer),侧行DRX去激活定时器(sl-drx-InactivityTimer),侧行DRX重传定时器(sl-drx-RetransmissionTimer),侧行HARQ RTT定时器(sl-HARQ-RTT-Timer)。
在一些实施例中,该第一条件包括以下至少之一:
第一终端根据DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收;
第一终端接收到第一信息时;
第一终端接收到第一信息之后;
第一终端接收到第一信息第一时长之后;
第一终端接收到第一信息且发送了第二信息之后;
第一终端接收到第一信息且在发送第二信息时;
第一终端接收到第一信息且发送第二信息第二时长之后;
其中,该第一信息用于指示将同步源变更为目标类型的同步源,该第二信息包括针对该第一信息的肯定反馈。
例如,在第一终端处于DRX激活态时,该第一终端接收该第二终端发送的该第一信息,从而获知该第二终端需要变更同步源,为了实现DRX同步,该第一终端需要在接收到信息的接收资源池或与接收到信息的资源池同步类型相同的接收资源池上进行接收(该资源池支持目标类型的同步源)。
例如,在该第一终端接收到该第二终端发送的该第一信息之后,该第一终端可以向该第二终端发送针对该第一信息的肯定反馈。
需要说明的是,在第一终端处于DRX激活态时,该第一终端可以接收该第二终端发送的信息,而在第一终端处于DRX非激活态或去激活态时,该第一终端无法接收该第二终端发送的信息。
在一些实施例中,在该第二终端未收到针对该第一信息的肯定反馈的情况下,该第二终端可以重新发送该第一信息。具体重传次数可以是预配置或协议约定的,或者,是第一终端与第二终端约定的,或者,是网络设备配置的。
在一些实施例中,第一时长可以是预配置或协议约定的,或者,第一时长是第一终端与第二终端约定的,或者,第一时长是网络设备配置的,或者,第一时长是基于第一终端的实现确定的。
在一些实施例中,第二时长可以是预配置或协议约定的,或者,第二时长是第一终端与第二终端约定的,或者,第二时长是网络设备配置的,或者,第二时长是基于第一终端的实现确定的。
在一些实施例中,该第一信息至少包括该目标类型的同步源的信息。
在一些实施例中,该第一终端根据该第一信息,在支持该目标类型的同步源的一个或多个接收资源池上进行信息接收。从而,在第二终端发生同步源变换的情况下,第一终端能够接收到第二终端发送的信息,也可以实现收发终端双方的DRX同步。
在一些实施例中,在满足第二条件的情况下,该第一终端继续之前暂停或停止的DRX相关定时器,或者,该第一终端重启DRX相关定时器,或者,该第一终端在目标时长内保持DRX激活状态。
在一些实施例中,目标时长可以是预配置或协议约定的,或者,目标时长是第一终端与第二终端约定的,或者,目标时长是网络设备配置的,或者,目标时长是基于第一终端的实现确定的。
在一些实施例中,该第二条件包括以下至少之一:
该第一终端在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收;
该第一终端接收到第三信息时;
该第一终端接收到第三信息之后;
该第一终端接收到第三信息第三时长之后;
该第一终端接收到第三信息且发送了第四信息;
该第一终端接收到第三信息且在发送第四信息时;
该第一终端接收到第三信息且发送第四信息第四时长之后;
其中,该第三信息为同步确认信息,该第四信息为同步确认响应信息。
例如,在第一终端处于DRX激活态时,该第一终端接收该第二终端发送的该第三信息,从而实现同步源变更之后的确认。
例如,在该第一终端接收到该第二终端发送的该第三信息之后,该第一终端可以向该第二终端发送该第四信息,以针对同步确认信息进行响应。也即,第一终端与第二终端交换了同步确认信息,进而实现了DRX同步。
在一些实施例中,第三时长可以是预配置或协议约定的,或者,第三时长是第一终端与第二终端约定的,或者,第三时长是网络设备配置的,或者,第三时长是基于第一终端的实现确定的。
在一些实施例中,第四时长可以是预配置或协议约定的,或者,第四时长是第一终端与第二终端约定的,或者,第四时长是网络设备配置的,或者,第四时长是基于第一终端的实现确定的。
在一些实施例中,该第一终端接收该第二终端发送的第五信息;以及该第一终端在接收该第五信息的接收资源池或与接收该第五信息的接收资源池具有相同类型的同步源的接收资源池上进行信息接收。
具体地,在第二终端变更同步源之后,在该第一终端处于DRX激活状态时,该第二终端向该第一终端发送该第五信息。以及该第一终端在接收该第五信息的接收资源池或与接收该第五信息的接收资源池具有相同类型的同步源的接收资源池上进行信息接收,从而,在第二终端发生同步源变换的情况下,第一终端能够接收到第二终端发送的信息,也可以实现收发终端双方的DRX同步。
在一些实施例中,该第五信息包括但不限于以下至少之一:
数据信息、同步信息、发现信息、PC5-S信息。
例如,数据信息为PSSCH信息。
例如,同步信息为侧行同步信号(Sidelink Synchronization Signal,SLSS)。
需要说明的是,PC5-S信息可以是PC5安全(PC5-Safety,PC5-S)信息。例如可以是上层信息、NAS层信息、连接建立请求等。
在一些实施例中,在该第一终端根据DRX配置在配置给该第一终端的所有接收资源池上进行信息接收的情况下,上述S210具体可以包括:
对于每个接收资源池,该第一终端根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定第一DRX定时器;和/或,
对于每个接收资源池,在该第一终端接收到新传PSCCH或PSSCH信息时,或者,在该第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在该第一终端发送HARQ反馈时,或者,在该第一终端发送HARQ反馈之后,该第一终端启动或重启第二DRX定时器;和/或,
对于每个接收资源池,在HARQ RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到侧行控制信息(Sidelink Control Information,SCI)信息或PSSCH信息后,该第一终端启动或重启第三DRX定时器。
在一些实施例中,在该第一终端根据该DRX配置在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收的情况下,上述S210具体可以包括:
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,该第一终端根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定第一DRX定时器;和/或,
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在该第一终端接收到新传PSCCH或PSSCH信息时,或者,在该第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在该第一终端发送HARQ反馈时,或者,在该第一终端发送HARQ反馈之后,该第一终端启动或重启第二DRX定时器;和/或,
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在HARQ RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到SCI信息或PSSCH信息后,该第一终端启动或重启第三DRX定时器。
在一些实施例中,第一DRX定时器可以是侧行DRX持续定时器(sl-drx-onDurationTimer)。
在一些实施例中,第二DRX定时器可以是侧行DRX去激活定时器(sl-drx-InactivityTimer)。
在一些实施例中,第三DRX定时器可以是侧行DRX重传定时器(sl-drx-RetransmissionTimer)。
因此,在本申请实施例中,第一终端根据DRX配置,在配置给第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。也即,对于接收终端,按照DRX配置在所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,从而在发送终端同步源变化时,能够保证接收终端能够接收到发送终端发送的信息,也可以实现收发终端双方的DRX同步。
上文结合图4,详细描述了本申请的第一终端侧实施例,下文结合图5,详细描述本申请的第二 终端侧实施例,应理解,第二终端侧实施例与第一终端侧实施例相互对应,类似的描述可以参照第一终端侧实施例。
图5是根据本申请实施例的无线通信的方法300的示意性流程图,适用于第一终端与第二终端之间的侧行传输,如图5所示,该无线通信的方法300可以由第二终端执行,该无线通信的方法300可以包括如下内容中的至少部分内容:
S310,在该第二终端的同步源从第一同步源变更为第二同步源的过程中,该第二终端保持DRX相关定时器,或者,该第二终端暂停或停止DRX相关定时器。
在本申请实施例中,在该第二终端的同步源从第一同步源变更为第二同步源的过程中,该第一终端和该第二终端保持DRX相关定时器,或者,该第一终端和该第二终端暂停或停止DRX相关定时器。从而,在第二终端发生同步源变换的情况下,实现收发终端双方的DRX同步,保证第一终端能够接收到第二终端发送的信息。
在一些实施例中,第一同步源可以是上述表1中所述的同步源中的一种,第二同步源可以是上述表1中所述的同步源中的另一种。
在一些实施例中,DRX相关定时器可以包括但不限于以下至少一种:
侧行DRX持续定时器(sl-drx-onDurationTimer),侧行DRX去激活定时器(sl-drx-InactivityTimer),侧行DRX重传定时器(sl-drx-RetransmissionTimer),侧行HARQ RTT定时器(sl-HARQ-RTT-Timer)。
在一些实施例中,在该第二终端在同步源变更过程中保持DRX相关定时器的情况下,该第二终端根据该第二同步源与该第一同步源之间的同步补偿值和DRX配置,确定该第一终端的DRX激活时间。
在一些实施例中,该同步补偿值的单位包括但不限于以下之一:
子帧、时隙、符号、毫秒。
在一些实施例中,在该第二终端在同步源变更过程中保持DRX相关定时器的情况下,该第二终端可以执行如下操作:
在该第二终端在第一DRX定时器运行期间从该第一同步源变更为该第二同步源的情况下,该第二终端根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定同步源变更之后用于信息发送的发送资源池中的第一DRX定时器的运行时间;和/或,
在该第二终端在第二DRX定时器运行期间从该第一同步源变更为该第二同步源的情况下,该第二终端根据同步源变更之前用于信息发送的发送资源池中的第二DRX定时器的启动时间和运行时长、该同步补偿值,确定同步源变更之后用于信息发送的发送资源池中的第二DRX定时器的运行时间。
在一些实施例中,第一DRX定时器可以是侧行DRX持续定时器(sl-drx-onDurationTimer)。
在一些实施例中,第二DRX定时器可以是侧行DRX去激活定时器(sl-drx-InactivityTimer)或者侧行DRX重传定时器(sl-drx-RetransmissionTimer)。
在一些实施例中,在该第一终端处于DRX激活状态的情况下,该第二终端根据DRX配置在支持该第二同步源的一个或多个发送资源池上进行信息发送。
需要说明的是,在第一终端处于DRX激活态时,该第一终端可以接收该第二终端发送的信息,而在第一终端处于DRX非激活态或去激活态时,该第一终端无法接收该第二终端发送的信息。
在一些实施例中,在满足第三条件的情况下,该第二终端暂停或停止DRX相关定时器。
在一些实施例中,该第三条件包括以下至少之一:
该第二终端发送第一信息时;
该第二终端发送第一信息之后;
该第二终端发送第一信息第五时长之后;
该第二终端发送了第一信息且接收到第二信息之后;
该第二终端发送了第一信息且接收到第二信息时;
该第二终端发送了第一信息且接收到第二信息第六时长之后;
其中,该第一信息用于指示将同步源变更为目标类型的同步源,该第二信息包括针对该第一信息的肯定反馈。
例如,在第一终端处于DRX激活态时,该第一终端接收该第二终端发送的该第一信息,从而获知该第二终端需要变更同步源,为了实现DRX同步,该第一终端需要在接收到信息的接收资源池或与接收到信息的资源池同步类型相同的接收资源池上进行接收(该资源池支持目标类型的同步源)。
例如,在该第一终端接收到该第二终端发送的该第一信息之后,该第一终端可以向该第二终端发 送针对该第一信息的肯定反馈。
在一些实施例中,该第一信息至少包括该目标类型的同步源的信息。
在一些实施例中,在发送该第一信息之后,该第二终端进入DRX激活状态,或者,该第二终端进入可接收数据的状态。
在一些实施例中,在未接收到针对该第一信息的肯定反馈的情况下,该第二终端重新发送该第一信息。具体重传次数可以是预配置或协议约定的,或者,是第一终端与第二终端约定的,或者,是网络设备配置的。
在一些实施例中,第五时长可以是预配置或协议约定的,或者,第五时长是第一终端与第二终端约定的,或者,第五时长是网络设备配置的,或者,第五时长是基于第二终端的实现确定的。
在一些实施例中,第六时长可以是预配置或协议约定的,或者,第六时长是第一终端与第二终端约定的,或者,第六时长是网络设备配置的,或者,第六时长是基于第二终端的实现确定的。
在一些实施例中,在满足第四条件的情况下,该第二终端继续之前暂停或停止的DRX相关定时器,或者,该第二终端重启DRX相关定时器,或者,该第二终端在目标时长内可向该第一终端发送信息。
在一些实施例中,目标时长可以是预配置或协议约定的,或者,目标时长是第一终端与第二终端约定的,或者,目标时长是网络设备配置的,或者,目标时长是基于第二终端的实现确定的。
在一些实施例中,该第四条件包括以下至少之一:
该第二终端发送第三信息时;
该第二终端发送第三信息之后;
该第二终端发送第三信息第七时长之后;
该第二终端发送了第三信息且接收到第四信息之后;
该第二终端发送了第三信息且接收到第四信息时;
该第二终端发送了第三信息且接收到第四信息第八时长之后;
其中,该第三信息为同步确认信息,该第四信息为同步确认响应信息。
例如,在第一终端处于DRX激活态时,该第一终端接收该第二终端发送的该第三信息,从而实现同步源变更之后的确认。
例如,在该第一终端接收到该第二终端发送的该第三信息之后,该第一终端可以向该第二终端发送该第四信息,以针对同步确认信息进行响应。也即,第一终端与第二终端交换了同步确认信息,进而实现了DRX同步。
在一些实施例中,第七时长可以是预配置或协议约定的,或者,第七时长是第一终端与第二终端约定的,或者,第七时长是网络设备配置的,或者,第七时长是基于第二终端的实现确定的。
在一些实施例中,第八时长可以是预配置或协议约定的,或者,第八时长是第一终端与第二终端约定的,或者,第八时长是网络设备配置的,或者,第八时长是基于第二终端的实现确定的。
在一些实施例中,在该第二终端在同步源变更过程中暂停或停止DRX相关定时器的情况下,在该第二终端的同步源从该第一同步源变更为该第二同步源之后,且该第一终端处于DRX激活状态,该第二终端根据DRX配置在支持该第二同步源的一个或多个发送资源池上向该第一终端发送第五信息。
具体地,该第一终端在接收该第五信息的接收资源池或与接收该第五信息的接收资源池具有相同类型的同步源的接收资源池上进行信息接收。从而,在第二终端发生同步源变换的情况下,第一终端能够接收到第二终端发送的信息,也可以实现收发终端双方的DRX同步。
在一些实施例中,该第五信息包括以下至少之一:
数据信息、同步信息、发现信息、PC5-S信息。
需要说明的是,PC5-S信息可以是PC5安全(PC5-Safety,PC5-S)信息。例如可以是上层信息、NAS层信息、连接建立请求等。
在一些实施例中,该DRX配置针对该第一终端与第二终端之间的侧行链路。例如,该第一终端可以根据该DRX配置在接收资源池上进行信息接收,以及该第二终端可以根据该DRX配置在发送资源池上进行信息发送。
在本申请实施例中,收发的信息可以是数据,也可以是信号或其他信息类型,本申请对此并不限定。
在一些实施例中,该DRX配置为预配置或协议约定的,或者,该DRX配置为网络设备配置的,或者,该DRX配置为该第一终端配置的。
例如,该DRX配置为网络设备通过SIB或者专用信令配置的。
因此,在本申请实施例中,在第二终端的同步源从第一同步源变更为第二同步源的过程中,第一终端和第二终端保持DRX相关定时器;或者,第一终端和第二终端暂停或停止DRX相关定时器。也即,对于发送和接收终端,在发送终端同步源变更的过程中,保持DRX相关定时器,或者,暂停或停止DRX相关定时器,从而在发送终端同步源变化时,实现收发终端双方的DRX同步,保证接收终端能够接收到发送终端发送的信息。
以下通过实施例1至实施例3详述本申请技术方案。
实施例1,收方UE(即UE2,对应上述第一终端)基于DRX配置,在所有接收资源池上进行信息接收,发方UE(即UE1,对应上述第二终端)切换同步源过程中DRX相关定时器不停。如图6所示,在实施例1中,UE1和UE2通过执行如下S11至S16所述的流程进行DRX同步。
S11,UE2获取DRX配置。
其中,该DRX配置针对UE1与UE2之间的侧行链路。
该DRX配置可以由以下方式得到:
预配置或者协议约定;
网络侧通过SIB或专有信令配置;
UE1配置。
S12,UE2根据DRX配置在配置给UE2的所有接收资源池上进行信息接收。
例如,对于每个接收资源池,UE2根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定侧行DRX持续定时器(sl-drx-onDurationTimer)。
又例如,对于每个接收资源池,UE2接收到新传PSCCH或PSSCH信息时,或者,UE2接收到新传PSCCH或PSSCH信息后,或者,UE2接收到新传PSCCH或PSSCH信息一段时间后,或者,UE2发送HARQ反馈时,或者,UE2发送HARQ反馈后,UE2启动或重启侧行DRX去激活定时器(sl-drx-InactivityTimer)。
再例如,对于每个接收资源池,HARQ RTT定时器超时后,或者,PSCCH或PSSCH解码失败后,或者,UE2收到SCI信息后,UE2启动或重启侧行DRX重传定时器(sl-drx-RetransmissionTimer)。
S13,UE1同步到新的同步源,并使用支持该同步源的发送资源池(Tx pool)进行发送。
S14,UE1计算新旧同步源之间的同步补偿值。
其中,同步补偿值的单位可以包括以下之一:
子帧、时隙、符号、毫秒。
S15,UE1根据同步补偿值及DRX配置判断UE2的DRX激活时间。
例如,若在侧行DRX持续定时器(sl-drx-onDurationTimer)运行期间切换同步源,则UE1根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定新Tx pool中的sl-drx-onDurationTimer的运行时间。
例如,若侧行DRX去激活定时器(sl-drx-InactivityTimer)运行期间切换同步源,则UE1根据同步补偿值、原Tx pool上sl-drx-InactivityTimer开启时间及sl-drx-InactivityTimer值,确定新Tx pool中的sl-drx-InactivityTimer的运行时间。
例如,若侧行DRX重传定时器(sl-drx-RetransmissionTimer)运行期间切换同步源,则UE1根据同步补偿值、原Tx pool上sl-drx-RetransmissionTimer开启时间及sl-drx-RetransmissionTimer值,确定新Tx pool中sl-drx-RetransmissionTimer的运行时间。
S16,UE1在UE2的DRX激活时间内向UE2发送信息,并继续基于DRX配置在新Tx pool中传输信息。
实施例2,收方UE(即UE2,对应上述第一终端)基于DRX配置,接收到信息的接收资源池或与该资源池同步源相同的上进行信息接收,发方UE(即UE1,对应上述第二终端)切换同步源过程中告知收方UE同步源变化,收方UE同步接收资源池(Rx pool)进而同步DRX。如图7所示,在实施例2中,UE1和UE2通过执行如下S21至S31所述的流程进行DRX同步。
S21,UE2获取DRX配置。
其中,该DRX配置针对UE1与UE2之间的侧行链路。
该DRX配置可以由以下方式得到:
预配置或者协议约定;
网络侧通过SIB或专有信令配置;
UE1配置。
S22,UE2根据DRX配置在接收到数据的接收资源池(Rx pool)上,或与该Rx pool同步源相同 的Rx pool上按照该DRX配置执行不连续接收操作。
例如,对于每个接收资源池,UE2根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定侧行DRX持续定时器(sl-drx-onDurationTimer)。
又例如,对于每个接收资源池,UE2接收到新传PSCCH或PSSCH信息时,或者,UE2接收到新传PSCCH或PSSCH信息后,或者,UE2接收到新传PSCCH或PSSCH信息一段时间后,或者,UE2发送HARQ反馈时,或者,UE2发送HARQ反馈后,UE2启动或重启侧行DRX去激活定时器(sl-drx-InactivityTimer)。
再例如,对于每个接收资源池,HARQ RTT定时器超时后,或者,PSCCH或PSSCH解码失败后,或者,UE2收到SCI信息后,UE2启动或重启侧行DRX重传定时器(sl-drx-RetransmissionTimer)。
S23,UE1向UE2发送同步源变化告知信息。
其中,该同步源变化告知信息中包含新同步源同步信息。
需要说明的是,该同步源变化告知信息需在UE2DRX激活期间内发送。
在一些现实方式,在发送该同步源变化告知信息之后,UE1进入DRX激活状态(若配置了DRX)或可接收数据状态等待UE2的反馈信息。
S24,UE2接收同步源变化告知信息并给UE1进行反馈。
S25,UE1收到UE2的肯定反馈,暂停或停止DRX相关定时器。
在一些现实方式,在UE1未收到肯定反馈的情况下,UE1重发同步源变化告知信息。
在一些现实方式,DRX相关定时器可以包括但不限于以下至少一种:
侧行DRX持续定时器(sl-drx-onDurationTimer),侧行DRX去激活定时器(sl-drx-InactivityTimer),侧行DRX重传定时器(sl-drx-RetransmissionTimer),侧行HARQ RTT定时器(sl-HARQ-RTT-Timer)。
S26,UE2发送肯定反馈时,或发送肯定反馈后,或发送肯定反馈后一段时间后,暂停或停止DRX相关定时器。
S27,UE1同步到新的同步源。
S28,UE2根据UE1指示(即同步源变化告知信息中指示的新的同步源)使用支持UE1的新同步源的Rx pool进行接收。
S29,UE1与UE2交换同步确认信息。
S30,UE1继续DRX相关定时器,或重启DRX相关定时器,或在一段时间内保持在DRX激活状态。
S31,UE2继续DRX相关定时器,或重启DRX相关定时器,或在一段时间内保持在DRX激活状态。
实施例3,收方UE(即UE2,对应上述第一终端)基于DRX配置,接收到信息的接收资源池或与该资源池同步源相同的上进行信息接收。发方UE(即UE1,对应上述第二终端)在切换同步源过程中停止DRX相关定时器,切换完成后等待收方UE进入DRX激活状态后进行信息发送。如图8所示,在实施例3中,UE1和UE2通过执行如下S41至S46所述的流程进行DRX同步。
S41,UE2获取DRX配置。
其中,该DRX配置针对UE1与UE2之间的侧行链路。
该DRX配置可以由以下方式得到:
预配置或者协议约定;
网络侧通过SIB或专有信令配置;
UE1配置。
S42,UE2根据DRX配置在接收到数据的Rx pool上,或与该Rx pool同步源相同的Rx pool上按照该DRX配置执行不连续接收操作。
例如,对于每个接收资源池,UE2根据侧行DRX周期(sl-drx-Cycle)、侧行DRX起始偏移量(sl-drx-StartOffset)、侧行DRX时隙偏移量(sl-drx-slotOffset),确定侧行DRX持续定时器(sl-drx-onDurationTimer)。
又例如,对于每个接收资源池,UE2接收到新传PSCCH或PSSCH信息时,或者,UE2接收到新传PSCCH或PSSCH信息后,或者,UE2接收到新传PSCCH或PSSCH信息一段时间后,或者,UE2发送HARQ反馈时,或者,UE2发送HARQ反馈后,UE2启动或重启侧行DRX去激活定时器(sl-drx-InactivityTimer)。
再例如,对于每个接收资源池,HARQ RTT定时器超时后,或者,PSCCH或PSSCH解码失败后,或者,UE2收到SCI信息后,UE2启动或重启侧行DRX重传定时器(sl-drx-RetransmissionTimer)。
S43,UE1停止DRX相关定时器。
在一些现实方式,DRX相关定时器可以包括但不限于以下至少一种:
侧行DRX持续定时器(sl-drx-onDurationTimer),侧行DRX去激活定时器(sl-drx-InactivityTimer),侧行DRX重传定时器(sl-drx-RetransmissionTimer),侧行HARQ RTT定时器(sl-HARQ-RTT-Timer)。
S44,UE1同步到新的同步源。
S45,UE1等待UE2进入DRX激活状态后向UE2发送信息,该信息可以为:
数据信息,如PSSCH信息;
同步信息,如SLSS信息;
发现信息;
PC5-S信息。
S46,UE2根据DRX配置在接收到信息的Rx pool或与该Rx pool同步源相同的Rx pool进行接收。
上文结合图4至图8,详细描述了本申请的方法实施例,下文结合图9至图13,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。
图9示出了根据本申请实施例的终端设备400的示意性框图。适用于第一终端与第二终端之间的侧行传输,该终端设备400为该第一终端,如图9所示,该终端设备400包括:
通信单元410,用于根据非连续接收DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。
在一些实施例中,该终端设备400还包括:处理单元420,其中,
在满足第一条件的情况下,该处理单元420用于保持DRX相关定时器;或者,该处理单元420用于暂停或停止DRX相关定时器。
在一些实施例中,该第一条件包括以下至少之一:
该第一终端根据该DRX配置,在配置给该第一终端的所有接收资源池上进行信息接收;
第一终端接收到第一信息时;
第一终端接收到第一信息之后;
第一终端接收到第一信息第一时长之后;
第一终端接收到第一信息且发送了第二信息之后;
第一终端接收到第一信息且在发送第二信息时;
第一终端接收到第一信息且发送第二信息第二时长之后;
其中,该第一信息用于指示将同步源变更为目标类型的同步源,该第二信息包括针对该第一信息的肯定反馈。
在一些实施例中,该第一信息至少包括该目标类型的同步源的信息。
在一些实施例中,该处理单元420还用于根据该第一信息,在支持该目标类型的同步源的一个或多个接收资源池上进行信息接收。
在一些实施例中,该终端设备400还包括:处理单元420,其中,
在满足第二条件的情况下,该处理单元420用于继续之前暂停或停止的DRX相关定时器,或者,该处理单元420用于重启DRX相关定时器,或者,该处理单元420用于在目标时长内保持DRX激活状态。
在一些实施例中,该第二条件包括以下至少之一:
该第一终端在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收;
该第一终端接收到第三信息时;
该第一终端接收到第三信息之后;
该第一终端接收到第三信息第三时长之后;
该第一终端接收到第三信息且发送了第四信息;
该第一终端接收到第三信息且在发送第四信息时;
该第一终端接收到第三信息且发送第四信息第四时长之后;
其中,该第三信息为同步确认信息,该第四信息为同步确认响应信息。
在一些实施例中,该第一终端处于DRX激活状态,
该通信单元410还用于接收该第二终端发送的第五信息;
该通信单元410还用于在接收该第五信息的接收资源池或与接收该第五信息的接收资源池具有 相同类型的同步源的接收资源池上进行信息接收。
在一些实施例中,该第五信息包括以下至少之一:
数据信息、同步信息、发现信息、PC5-S信息。
在一些实施例中,该第一终端根据该DRX配置在配置给该第一终端的所有接收资源池上进行信息接收,该终端设备400还包括:处理单元420,其中,
对于每个接收资源池,该处理单元420用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
对于每个接收资源池,在该第一终端接收到新传物理侧行控制信道PSCCH或物理侧行共享信道PSSCH信息时,或者,在该第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在该第一终端发送混合自动重传请求HARQ反馈时,或者,在该第一终端发送HARQ反馈之后,该处理单元420用于启动或重启第二DRX定时器;和/或,
对于每个接收资源池,在HARQ往返传输时间RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到侧行控制信息SCI信息或PSSCH信息后,该处理单元420用于启动或重启第三DRX定时器。
在一些实施例中,该第一终端根据该DRX配置在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,该终端设备400还包括:处理单元420,其中,
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,该处理单元420用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在该第一终端接收到新传PSCCH或PSSCH信息时,或者,在该第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在该第一终端发送HARQ反馈时,或者,在该第一终端发送HARQ反馈之后,该处理单元420用于启动或重启第二DRX定时器;和/或,
对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在HARQ RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到SCI信息或PSSCH信息后,该处理单元420用于启动或重启第三DRX定时器。
在一些实施例中,该DRX配置针对该第一终端与该第二终端之间的侧行链路。
在一些实施例中,该DRX配置为预配置或协议约定的,或者,该DRX配置为网络设备配置的,或者,该DRX配置为该第二终端配置的。
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系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备400可对应于本申请方法实施例中的第一终端,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4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。
图10示出了根据本申请实施例的终端设备500的示意性框图。适用于第一终端与第二终端之间的侧行传输,该终端设备500为该第二终端,如图10所示,该终端设备500包括:
处理单元510,用于在该第二终端的同步源从第一同步源变更为第二同步源的过程中,保持非连续接收DRX相关定时器,或者,暂停或停止DRX相关定时器。
在一些实施例中,该第二终端在同步源变更过程中保持DRX相关定时器,
该处理单元510还用于根据该第二同步源与该第一同步源之间的同步补偿值和DRX配置,确定该第一终端的DRX激活时间。
在一些实施例中,该同步补偿值的单位包括以下之一:
子帧、时隙、符号、毫秒。
在一些实施例中,在该第二终端在第一DRX定时器运行期间从该第一同步源变更为该第二同步源的情况下,该处理单元510还用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定同步源变更之后用于信息发送的发送资源池中的第一DRX定时器的运行时间;和/或,
在该第二终端在第二DRX定时器运行期间从该第一同步源变更为该第二同步源的情况下,该处理单元510还用于根据同步源变更之前用于信息发送的发送资源池中的第二DRX定时器的启动时间和运行时长、该同步补偿值,确定同步源变更之后用于信息发送的发送资源池中的第二DRX定时器的运行时间。
在一些实施例中,该第一终端处于DRX激活状态,该终端设备500还包括:通信单元520,其中,
该通信单元520用于根据DRX配置在支持该第二同步源的一个或多个发送资源池上进行信息发送。
在一些实施例中,该处理单元510具体用于:
在满足第三条件的情况下,暂停或停止DRX相关定时器。
在一些实施例中,该第三条件包括以下至少之一:
该第二终端发送第一信息时;
该第二终端发送第一信息之后;
该第二终端发送第一信息第五时长之后;
该第二终端发送了第一信息且接收到第二信息之后;
该第二终端发送了第一信息且接收到第二信息时;
该第二终端发送了第一信息且接收到第二信息第六时长之后;
其中,该第一信息用于指示将同步源变更为目标类型的同步源,该第二信息包括针对该第一信息的肯定反馈。
在一些实施例中,该第一信息至少包括该目标类型的同步源的信息。
在一些实施例中,在发送该第一信息之后,该第二终端进入DRX激活状态,或者,该第二终端进入可接收数据的状态。
在一些实施例中,在未接收到针对该第一信息的肯定反馈的情况下,该通信单元520还用于重新发送该第一信息。
在一些实施例中,在满足第四条件的情况下,该处理单元510还用于继续之前暂停或停止的DRX相关定时器,或者,该处理单元510还用于重启DRX相关定时器,或者,该第二终端在目标时长内可向该第一终端发送信息。
在一些实施例中,该第四条件包括以下至少之一:
该第二终端发送第三信息时;
该第二终端发送第三信息之后;
该第二终端发送第三信息第七时长之后;
该第二终端发送了第三信息且接收到第四信息之后;
该第二终端发送了第三信息且接收到第四信息时;
该第二终端发送了第三信息且接收到第四信息第八时长之后;
其中,该第三信息为同步确认信息,该第四信息为同步确认响应信息。
在一些实施例中,该第二终端在同步源变更过程中暂停或停止DRX相关定时器,该终端设备500还包括:通信单元520,其中,
在该第二终端的同步源从该第一同步源变更为该第二同步源之后,且该第一终端处于DRX激活状态,该通信单元520用于根据DRX配置在支持该第二同步源的一个或多个发送资源池上向该第一终端发送第五信息。
在一些实施例中,该第五信息包括以下至少之一:
数据信息、同步信息、发现信息、PC5-S信息。
在一些实施例中,该DRX配置针对该第一终端与第二终端之间的侧行链路。
在一些实施例中,该DRX配置为预配置或协议约定的,或者,该DRX配置为网络设备配置的,或者,该DRX配置为该第一终端配置的。
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系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备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5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。
图11是本申请实施例提供的一种通信设备600示意性结构图。图11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。
在一些实施例中,如图11所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
在一些实施例中,如图11所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
在一些实施例中,该通信设备600具体可为本申请实施例的终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该通信设备600具体可为本申请实施例的终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由第二终端实现的相应流程,为了简洁,在此不再赘述。
图12是本申请实施例的装置的示意性结构图。图12所示的装置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。
在一些实施例中,如图12所示,装置700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
在一些实施例中,该装置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。
在一些实施例中,该装置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。
在一些实施例中,该装置可应用于本申请实施例中的终端设备,并且该装置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。
在一些实施例中,该装置可应用于本申请实施例中的终端设备,并且该装置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。
在一些实施例中,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图13是本申请实施例提供的一种通信系统800的示意性框图。如图13所示,该通信系统800包括第一终端810和第二终端820。
其中,该第一终端810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820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。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这 些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第二终端实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第二终端实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
在一些实施例中,该计算机程序可应用于本申请实施例中的终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序可应用于本申请实施例中的终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第二终端实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (63)

  1. 一种无线通信的方法,其特征在于,适用于第一终端与第二终端之间的侧行传输,所述方法包括:
    所述第一终端根据非连续接收DRX配置,在配置给所述第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。
  2. 如权利要求1所述的方法,其特征在于,所述方法还包括:
    在满足第一条件的情况下,所述第一终端保持DRX相关定时器;或者,所述第一终端暂停或停止DRX相关定时器。
  3. 如权利要求2所述的方法,其特征在于,所述第一条件包括以下至少之一:
    所述第一终端根据所述DRX配置,在配置给所述第一终端的所有接收资源池上进行信息接收;
    所述第一终端接收到第一信息时;
    所述第一终端接收到第一信息之后;
    所述第一终端接收到第一信息第一时长之后;
    所述第一终端接收到第一信息且发送了第二信息之后;
    所述第一终端接收到第一信息且在发送第二信息时;
    所述第一终端接收到第一信息且发送第二信息第二时长之后;
    其中,所述第一信息用于指示将同步源变更为目标类型的同步源,所述第二信息包括针对所述第一信息的肯定反馈。
  4. 如权利要求3所述的方法,其特征在于,所述第一信息至少包括所述目标类型的同步源的信息。
  5. 如权利要求3或4所述的方法,其特征在于,所述方法还包括:
    所述第一终端根据所述第一信息,在支持所述目标类型的同步源的一个或多个接收资源池上进行信息接收。
  6. 如权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:
    在满足第二条件的情况下,所述第一终端继续之前暂停或停止的DRX相关定时器,或者,所述第一终端重启DRX相关定时器,或者,所述第一终端在目标时长内保持DRX激活状态。
  7. 如权利要求6所述的方法,其特征在于,所述第二条件包括以下至少之一:
    所述第一终端在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收;
    所述第一终端接收到第三信息时;
    所述第一终端接收到第三信息之后;
    所述第一终端接收到第三信息第三时长之后;
    所述第一终端接收到第三信息且发送了第四信息之后;
    所述第一终端接收到第三信息且在发送第四信息时;
    所述第一终端接收到第三信息且发送第四信息第四时长之后;
    其中,所述第三信息为同步确认信息,所述第四信息为同步确认响应信息。
  8. 如权利要求1所述的方法,其特征在于,所述第一终端处于DRX激活状态,所述方法还包括:
    所述第一终端接收所述第二终端发送的第五信息;
    所述第一终端在接收所述第五信息的接收资源池或与接收所述第五信息的接收资源池具有相同类型的同步源的接收资源池上进行信息接收。
  9. 如权利要求8所述的方法,其特征在于,所述第五信息包括以下至少之一:
    数据信息、同步信息、发现信息、PC5-S信息。
  10. 如权利要求1至9中任一项所述的方法,其特征在于,所述第一终端根据所述DRX配置在配置给所述第一终端的所有接收资源池上进行信息接收,所述方法还包括:
    对于每个接收资源池,所述第一终端根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
    对于每个接收资源池,在所述第一终端接收到新传物理侧行控制信道PSCCH或物理侧行共享信道PSSCH信息时,或者,在所述第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在所述第一终端发送混合自动重传请求HARQ反馈时,或者,在所述第一终端发送HARQ反馈之后,所述第一终端启动或重启第二DRX定时器;和/或,
    对于每个接收资源池,在HARQ往返传输时间RTT定时器超时之后,或者,在PSCCH或PSSCH 解码失败之后,或者,在收到侧行控制信息SCI信息或PSSCH信息后,所述第一终端启动或重启第三DRX定时器。
  11. 如权利要求1至9中任一项所述的方法,其特征在于,所述第一终端根据所述DRX配置在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,所述方法还包括:
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,所述第一终端根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在所述第一终端接收到新传PSCCH或PSSCH信息时,或者,在所述第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在所述第一终端发送HARQ反馈时,或者,在所述第一终端发送HARQ反馈之后,所述第一终端启动或重启第二DRX定时器;和/或,
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在HARQ RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到SCI信息或PSSCH信息后,所述第一终端启动或重启第三DRX定时器。
  12. 如权利要求1至11中任一项所述的方法,其特征在于,所述DRX配置针对所述第一终端与所述第二终端之间的侧行链路。
  13. 如权利要求1至12中任一项所述的方法,其特征在于,所述DRX配置为预配置或协议约定的,或者,所述DRX配置为网络设备配置的,或者,所述DRX配置为所述第二终端配置的。
  14. 一种无线通信的方法,其特征在于,适用于第一终端与第二终端之间的侧行传输,所述方法包括:
    在所述第二终端的同步源从第一同步源变更为第二同步源的过程中,所述第二终端保持非连续接收DRX相关定时器,或者,所述第二终端暂停或停止DRX相关定时器。
  15. 如权利要求14所述的方法,其特征在于,所述第二终端在同步源变更过程中保持DRX相关定时器,所述方法还包括:
    所述第二终端根据所述第二同步源与所述第一同步源之间的同步补偿值和DRX配置,确定所述第一终端的DRX激活时间。
  16. 如权利要求15所述的方法,其特征在于,所述同步补偿值的单位包括以下之一:
    子帧、时隙、符号、毫秒。
  17. 如权利要求15或16所述的方法,其特征在于,所述方法还包括:
    在所述第二终端在第一DRX定时器运行期间从所述第一同步源变更为所述第二同步源的情况下,所述第二终端根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定同步源变更之后用于信息发送的发送资源池中的第一DRX定时器的运行时间;和/或,
    在所述第二终端在第二DRX定时器运行期间从所述第一同步源变更为所述第二同步源的情况下,所述第二终端根据同步源变更之前用于信息发送的发送资源池中的第二DRX定时器的启动时间和运行时长、所述同步补偿值,确定同步源变更之后用于信息发送的发送资源池中的第二DRX定时器的运行时间。
  18. 如权利要求15至17中任一项所述的方法,其特征在于,所述第一终端处于DRX激活状态,所述方法还包括:
    所述第二终端根据DRX配置在支持所述第二同步源的一个或多个发送资源池上进行信息发送。
  19. 如权利要求14所述的方法,其特征在于,所述第二终端暂停或停止DRX相关定时器,包括:
    在满足第三条件的情况下,所述第二终端暂停或停止DRX相关定时器。
  20. 如权利要求19所述的方法,其特征在于,所述第三条件包括以下至少之一:
    所述第二终端发送第一信息时;
    所述第二终端发送第一信息之后;
    所述第二终端发送第一信息第五时长之后;
    所述第二终端发送了第一信息且接收到第二信息之后;
    所述第二终端发送了第一信息且接收到第二信息时;
    所述第二终端发送了第一信息且接收到第二信息第六时长之后;
    其中,所述第一信息用于指示将同步源变更为目标类型的同步源,所述第二信息包括针对所述第一信息的肯定反馈。
  21. 如权利要求20所述的方法,其特征在于,所述第一信息至少包括所述目标类型的同步源的 信息。
  22. 如权利要求20或21所述的方法,其特征在于,所述方法还包括:
    在发送所述第一信息之后,所述第二终端进入DRX激活状态,或者,所述第二终端进入可接收数据的状态。
  23. 如权利要求20至22中任一项所述的方法,其特征在于,所述方法还包括:
    在未接收到针对所述第一信息的肯定反馈的情况下,所述第二终端重新发送所述第一信息。
  24. 如权利要求19至23中任一项所述的方法,其特征在于,所述方法还包括:
    在满足第四条件的情况下,所述第二终端继续之前暂停或停止的DRX相关定时器,或者,所述第二终端重启DRX相关定时器,或者,所述第二终端在目标时长内可向所述第一终端发送信息。
  25. 如权利要求24所述的方法,其特征在于,所述第四条件包括以下至少之一:
    所述第二终端发送第三信息时;
    所述第二终端发送第三信息之后;
    所述第二终端发送第三信息第七时长之后;
    所述第二终端发送了第三信息且接收到第四信息之后;
    所述第二终端发送了第三信息且接收到第四信息时;
    所述第二终端发送了第三信息且接收到第四信息第八时长之后;
    其中,所述第三信息为同步确认信息,所述第四信息为同步确认响应信息。
  26. 如权利要求14所述的方法,其特征在于,所述第二终端在同步源变更过程中暂停或停止DRX相关定时器,所述方法还包括:
    在所述第二终端的同步源从所述第一同步源变更为所述第二同步源之后,且所述第一终端处于DRX激活状态,所述第二终端根据DRX配置在支持所述第二同步源的一个或多个发送资源池上向所述第一终端发送第五信息。
  27. 如权利要求26所述的方法,其特征在于,所述第五信息包括以下至少之一:
    数据信息、同步信息、发现信息、PC5-S信息。
  28. 如权利要求15至18、26至27中任一项所述的方法,其特征在于,所述DRX配置针对所述第一终端与第二终端之间的侧行链路。
  29. 如权利要求15至18、26至28中任一项所述的方法,其特征在于,所述DRX配置为预配置或协议约定的,或者,所述DRX配置为网络设备配置的,或者,所述DRX配置为所述第一终端配置的。
  30. 一种终端设备,其特征在于,适用于第一终端与第二终端之间的侧行传输,所述终端设备为所述第一终端,所述终端设备包括:
    通信单元,用于根据非连续接收DRX配置,在配置给所述第一终端的所有接收资源池上进行信息接收,或者,在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收。
  31. 如权利要求30所述的终端设备,其特征在于,所述终端设备还包括:处理单元,其中,
    在满足第一条件的情况下,所述处理单元用于保持DRX相关定时器;或者,所述处理单元用于暂停或停止DRX相关定时器。
  32. 如权利要求31所述的终端设备,其特征在于,所述第一条件包括以下至少之一:
    所述第一终端根据所述DRX配置,在配置给所述第一终端的所有接收资源池上进行信息接收;
    所述第一终端接收到第一信息时;
    所述第一终端接收到第一信息之后;
    所述第一终端接收到第一信息第一时长之后;
    所述第一终端接收到第一信息且发送了第二信息之后;
    所述第一终端接收到第一信息且在发送第二信息时;
    所述第一终端接收到第一信息且发送第二信息第二时长之后;
    其中,所述第一信息用于指示将同步源变更为目标类型的同步源,所述第二信息包括针对所述第一信息的肯定反馈。
  33. 如权利要求32所述的终端设备,其特征在于,所述第一信息至少包括所述目标类型的同步源的信息。
  34. 如权利要求32或33所述的终端设备,其特征在于,所述处理单元还用于根据所述第一信息,在支持所述目标类型的同步源的一个或多个接收资源池上进行信息接收。
  35. 如权利要求30至34中任一项所述的终端设备,其特征在于,所述终端设备还包括:处理单 元,其中,
    在满足第二条件的情况下,所述处理单元用于继续之前暂停或停止的DRX相关定时器,或者,所述处理单元用于重启DRX相关定时器,或者,所述处理单元用于在目标时长内保持DRX激活状态。
  36. 如权利要求35所述的终端设备,其特征在于,所述第二条件包括以下至少之一:
    所述第一终端在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收;
    所述第一终端接收到第三信息时;
    所述第一终端接收到第三信息之后;
    所述第一终端接收到第三信息第三时长之后;
    所述第一终端接收到第三信息且发送了第四信息之后;
    所述第一终端接收到第三信息且在发送第四信息时;
    所述第一终端接收到第三信息且发送第四信息第四时长之后;
    其中,所述第三信息为同步确认信息,所述第四信息为同步确认响应信息。
  37. 如权利要求30所述的终端设备,其特征在于,所述第一终端处于DRX激活状态,
    所述通信单元还用于接收所述第二终端发送的第五信息;
    所述通信单元还用于在接收所述第五信息的接收资源池或与接收所述第五信息的接收资源池具有相同类型的同步源的接收资源池上进行信息接收。
  38. 如权利要求37所述的终端设备,其特征在于,所述第五信息包括以下至少之一:
    数据信息、同步信息、发现信息、PC5-S信息。
  39. 如权利要求30至38中任一项所述的终端设备,其特征在于,所述第一终端根据所述DRX配置在配置给所述第一终端的所有接收资源池上进行信息接收,所述终端设备还包括:处理单元,其中,
    对于每个接收资源池,所述处理单元用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
    对于每个接收资源池,在所述第一终端接收到新传物理侧行控制信道PSCCH或物理侧行共享信道PSSCH信息时,或者,在所述第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在所述第一终端发送混合自动重传请求HARQ反馈时,或者,在所述第一终端发送HARQ反馈之后,所述处理单元用于启动或重启第二DRX定时器;和/或,
    对于每个接收资源池,在HARQ往返传输时间RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到侧行控制信息SCI信息或PSSCH信息后,所述处理单元用于启动或重启第三DRX定时器。
  40. 如权利要求30至38中任一项所述的终端设备,其特征在于,所述第一终端根据所述DRX配置在接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池上进行信息接收,所述终端设备还包括:处理单元,其中,
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,所述处理单元用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定第一DRX定时器;和/或,
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在所述第一终端接收到新传PSCCH或PSSCH信息时,或者,在所述第一终端接收到新传PSCCH或PSSCH信息第二时长之后,或者,在所述第一终端发送HARQ反馈时,或者,在所述第一终端发送HARQ反馈之后,所述处理单元用于启动或重启第二DRX定时器;和/或,
    对于接收到信息的资源池或与接收到信息的资源池具有相同类型的同步源的接收资源池,在HARQ RTT定时器超时之后,或者,在PSCCH或PSSCH解码失败之后,或者,在收到SCI信息或PSSCH信息后,所述处理单元用于启动或重启第三DRX定时器。
  41. 如权利要求30至40中任一项所述的终端设备,其特征在于,所述DRX配置针对所述第一终端与所述第二终端之间的侧行链路。
  42. 如权利要求30至41中任一项所述的终端设备,其特征在于,所述DRX配置为预配置或协议约定的,或者,所述DRX配置为网络设备配置的,或者,所述DRX配置为所述第二终端配置的。
  43. 一种终端设备,其特征在于,适用于第一终端与第二终端之间的侧行传输,所述终端设备为所述第二终端,所述终端设备包括:
    处理单元,用于在所述第二终端的同步源从第一同步源变更为第二同步源的过程中,保持非连续接收DRX相关定时器,或者,暂停或停止DRX相关定时器。
  44. 如权利要求43所述的终端设备,其特征在于,所述第二终端在同步源变更过程中保持DRX相关定时器,
    所述处理单元还用于根据所述第二同步源与所述第一同步源之间的同步补偿值和DRX配置,确定所述第一终端的DRX激活时间。
  45. 如权利要求44所述的终端设备,其特征在于,所述同步补偿值的单位包括以下之一:
    子帧、时隙、符号、毫秒。
  46. 如权利要求44或45所述的终端设备,其特征在于,
    在所述第二终端在第一DRX定时器运行期间从所述第一同步源变更为所述第二同步源的情况下,所述处理单元还用于根据侧行DRX周期、侧行DRX起始偏移量、侧行DRX时隙偏移量,确定同步源变更之后用于信息发送的发送资源池中的第一DRX定时器的运行时间;和/或,
    在所述第二终端在第二DRX定时器运行期间从所述第一同步源变更为所述第二同步源的情况下,所述处理单元还用于根据同步源变更之前用于信息发送的发送资源池中的第二DRX定时器的启动时间和运行时长、所述同步补偿值,确定同步源变更之后用于信息发送的发送资源池中的第二DRX定时器的运行时间。
  47. 如权利要求44至46中任一项所述的终端设备,其特征在于,所述第一终端处于DRX激活状态,所述终端设备还包括:通信单元,其中,
    所述通信单元用于根据DRX配置在支持所述第二同步源的一个或多个发送资源池上进行信息发送。
  48. 如权利要求43所述的终端设备,其特征在于,所述处理单元具体用于:
    在满足第三条件的情况下,暂停或停止DRX相关定时器。
  49. 如权利要求48所述的终端设备,其特征在于,所述第三条件包括以下至少之一:
    所述第二终端发送第一信息时;
    所述第二终端发送第一信息之后;
    所述第二终端发送第一信息第五时长之后;
    所述第二终端发送了第一信息且接收到第二信息之后;
    所述第二终端发送了第一信息且接收到第二信息时;
    所述第二终端发送了第一信息且接收到第二信息第六时长之后;
    其中,所述第一信息用于指示将同步源变更为目标类型的同步源,所述第二信息包括针对所述第一信息的肯定反馈。
  50. 如权利要求49所述的终端设备,其特征在于,所述第一信息至少包括所述目标类型的同步源的信息。
  51. 如权利要求49或50所述的终端设备,其特征在于,
    在发送所述第一信息之后,所述第二终端进入DRX激活状态,或者,所述第二终端进入可接收数据的状态。
  52. 如权利要求49至51中任一项所述的终端设备,其特征在于,
    在未接收到针对所述第一信息的肯定反馈的情况下,所述通信单元还用于重新发送所述第一信息。
  53. 如权利要求48至52中任一项所述的终端设备,其特征在于,
    在满足第四条件的情况下,所述处理单元还用于继续之前暂停或停止的DRX相关定时器,或者,所述处理单元还用于重启DRX相关定时器,或者,所述第二终端在目标时长内可向所述第一终端发送信息。
  54. 如权利要求53所述的终端设备,其特征在于,所述第四条件包括以下至少之一:
    所述第二终端发送第三信息时;
    所述第二终端发送第三信息之后;
    所述第二终端发送第三信息第七时长之后;
    所述第二终端发送了第三信息且接收到第四信息之后;
    所述第二终端发送了第三信息且接收到第四信息时;
    所述第二终端发送了第三信息且接收到第四信息第八时长之后;
    其中,所述第三信息为同步确认信息,所述第四信息为同步确认响应信息。
  55. 如权利要求43所述的终端设备,其特征在于,所述第二终端在同步源变更过程中暂停或停止DRX相关定时器,所述终端设备还包括:通信单元,其中,
    在所述第二终端的同步源从所述第一同步源变更为所述第二同步源之后,且所述第一终端处于 DRX激活状态,所述通信单元用于根据DRX配置在支持所述第二同步源的一个或多个发送资源池上向所述第一终端发送第五信息。
  56. 如权利要求55所述的终端设备,其特征在于,所述第五信息包括以下至少之一:
    数据信息、同步信息、发现信息、PC5-S信息。
  57. 如权利要求44至47、55至56中任一项所述的终端设备,其特征在于,所述DRX配置针对所述第一终端与第二终端之间的侧行链路。
  58. 如权利要求44至47、55至57中任一项所述的终端设备,其特征在于,所述DRX配置为预配置或协议约定的,或者,所述DRX配置为网络设备配置的,或者,所述DRX配置为所述第一终端配置的。
  59. 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13中任一项所述的方法,或者,执行如权利要求14至29中任一项所述的方法。
  60. 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13中任一项所述的方法,或者,执行如权利要求14至29中任一项所述的方法。
  61. 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13中任一项所述的方法,或者,执行如权利要求14至29中任一项所述的方法。
  62. 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13中任一项所述的方法,或者,执行如权利要求14至29中任一项所述的方法。
  63. 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13中任一项所述的方法,或者,执行如权利要求14至29中任一项所述的方法。
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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

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