WO2023108416A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2023108416A1
WO2023108416A1 PCT/CN2021/137897 CN2021137897W WO2023108416A1 WO 2023108416 A1 WO2023108416 A1 WO 2023108416A1 CN 2021137897 W CN2021137897 W CN 2021137897W WO 2023108416 A1 WO2023108416 A1 WO 2023108416A1
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Prior art keywords
sdt
terminal device
timer
rsrp
expires
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PCT/CN2021/137897
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English (en)
Chinese (zh)
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尤心
林雪
刘洋
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180102816.3A priority Critical patent/CN118318494A/zh
Priority to PCT/CN2021/137897 priority patent/WO2023108416A1/fr
Publication of WO2023108416A1 publication Critical patent/WO2023108416A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.
  • Self-organizing network can optimize network parameter configuration according to the information reported by terminal equipment.
  • the current SON framework does not support small data transmission (SDT), which makes it impossible for network devices to optimize the relevant parameters of SDT.
  • the present application provides a wireless communication method, a terminal device, and a network device.
  • a wireless communication method including: a terminal device sends a first message to a network device, where the first message includes first information of an SDT.
  • a wireless communication method including: a network device receiving a first message sent by a terminal device, where the first message includes first information of an SDT.
  • a terminal device including: a sending unit, configured to send a first message to a network device, where the first message includes first information of an SDT.
  • a network device including: a receiving unit, configured to receive a first message sent by a terminal device, where the first message includes first information of an SDT.
  • a terminal device including a processor, a memory, and a communication interface, the memory is used to store one or more computer programs, and the processor is used to call the computer programs in the memory so that the terminal device Execute the method described in the first aspect.
  • a network device including a processor, a memory, and a communication interface, the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to make the network device Execute the method described in the second aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the first aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the second aspect.
  • a ninth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.
  • a chip including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the second aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the first aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the second aspect.
  • a thirteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect.
  • a fourteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the second aspect.
  • a fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.
  • a sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.
  • the terminal device reports the first information including the SDT to the network device, which helps the network device optimize related parameters of the SDT based on the first information.
  • Fig. 1 is an example diagram of a system architecture of a communication system applicable to an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of performing SDT based on a two-step random access process.
  • Fig. 3 is a schematic flowchart of performing SDT based on a four-step random access process.
  • Fig. 4 is a schematic flowchart of information reporting under the SON architecture.
  • Fig. 5 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120 .
  • the network device 110 may be a device that communicates with the terminal device 120 .
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 120 located in the coverage area.
  • Figure 1 exemplarily shows one network device and two terminals.
  • the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. The embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system , LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc.
  • the technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, and so on.
  • the terminal equipment in the embodiment of the present application may also be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like.
  • the terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • UE can be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station.
  • the network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network.
  • radio access network radio access network, RAN node (or device) that connects a terminal device to a wireless network.
  • the base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node , wireless node, access point (access piont, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation base
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device.
  • the base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network.
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station.
  • a helicopter or drone may be configured to serve as a device in communication with another base station.
  • the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU.
  • a gNB may also include an AAU.
  • Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the scenarios where the network device and the terminal device are located are not limited.
  • the communication device mentioned in this application may be a network device, or may also be a terminal device.
  • the first communication device is a network device
  • the second communication device is a terminal device.
  • the first communication device is a terminal device
  • the second communication device is a network device.
  • both the first communication device and the second communication device are network devices, or both are terminal devices.
  • RRC radio resource control
  • the RRC_CONNECTED state may refer to the state that the terminal equipment is in when the RRC release is not performed after completing the random access process.
  • An RRC connection exists between a terminal device and a network device (for example, an access network device).
  • the terminal device can perform data transmission with the network device, such as performing downlink data transmission and/or uplink data transmission.
  • the terminal device may also perform terminal device-specific data channel and/or control channel transmission with the network device, so as to transmit specific information or unicast information of the terminal device.
  • the RRC_IDLE state refers to the state that the terminal equipment is in when it camps in the cell but does not perform random access.
  • the terminal device usually enters the RRC_IDLE state after it is turned on or after the RRC is released.
  • the RRC_IDLE state there is no RRC connection between the terminal device and the network device (for example, a resident network device), the network device does not store the context of the terminal device, and no connection for the terminal device is established between the network device and the core network. If the terminal device needs to enter the RRC_CONNECTED state from the RRC_IDLE state, it needs to initiate the RRC connection establishment process.
  • the RRC_INACTIVE state is a newly introduced state from the perspective of energy saving in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services.
  • the RRC_INACTIVE state is a state between the connected state and the idle state.
  • the terminal device has entered the RRC_CONNECTED state before, and then releases the RRC connection, radio bearer and radio resources with the network device, but the network device saves the context of the terminal device so as to quickly restore the RRC connection.
  • the connection between the network device and the core network for the terminal device is not released, that is, the user plane bearer and control plane bearer between the RAN and the CN are still maintained, that is, there is a CN-NR connection.
  • the terminal device may remain in the RRC_INACTIVE state to save power.
  • the terminal device in the RRC_INACTIVE state does not support data transmission, that is, it does not support the transmission of mobile original (MO) data and mobile terminated (MT) data.
  • MO data means that the sender of the data is a terminal device, and the transmission direction of the message is from the terminal device to the network device.
  • MO data may also be referred to as uplink data.
  • MT data means that the sending end of the data is a network device, and the transmission direction of the message is from the network device to the terminal device.
  • MT data can also be called downlink data.
  • the terminal equipment When the MO data or MT data arrives, the terminal equipment needs to restore the RRC connection, thus entering the RRC_CONNECTED state. In the RRC_CONNECTED state, the terminal equipment can transmit MO data or MT data. After the MO data or MT data transmission is completed, the terminal device releases the RRC connection and returns to the RRC_INACTIVE state.
  • the terminal device needs to switch from the RRC_INACTIVE state to the RRC_CONNECTED state, and then switch from the RRC_CONNECTED state to the RRC_INACTIVE state. Switching between different RRC states will result in increased power consumption of the terminal equipment.
  • a terminal device in the RRC_INACTIVE state needs to transmit some data with small data volume and low transmission frequency (which can be called small packet data), such as instant messaging messages, heartbeat packets, periodic data, etc. If the terminal device switches to the RRC_CONNECTED state and then performs data transmission, the signaling overhead required by the terminal device for RRC state switching will even be greater than the overhead required for transmitting these data, resulting in unnecessary power consumption and signaling overhead.
  • the small data transmission SDT scheme in the RRC_INACTIVE state is discussed in Rel-17.
  • the terminal device does not need to switch from the RRC_INACTIVE state to the RRC_CONNECTED state to perform small data transmission, but can perform small data transmission in the RRC_INACTIVE state.
  • the small data transmission in this embodiment of the present application may include uplink small data transmission and downlink small data transmission. The following will mainly describe the uplink small data transmission.
  • the terminal device In the RRC_INACTIVE state, there are two ways for the terminal device to perform SDT. One is the SDT based on the random access process, and the other is the SDT based on the configured grant (CG). These two situations are introduced respectively below.
  • the SDT based on the random access process may refer to that the terminal device may perform SDT during the random access process.
  • the manner of random access may be a two-step random access process, or may also be a four-step random access process.
  • the terminal device can perform SDT in message 1 (message 1, MSG1). That is to say, MSG1 of the two-step random access process can be used to bear data.
  • the terminal device can perform SDT in MSG3. That is to say, MSG3 of the four-step random access process can be used to bear data.
  • the resource for the terminal device to perform SDT may be called RA-SDT resource.
  • the two-step random access process and the four-step random access process are described below with reference to FIG. 2 and FIG. 3 .
  • Fig. 2 shows a schematic flowchart of performing SDT in the two-step random access process.
  • the terminal device sends MSG1 to the network device.
  • the terminal device may send MSG1 on a random access channel (random access channel, RACH) resource configured by the network device.
  • MSG1 may carry data to be transmitted (or called uplink data or MO data).
  • RACH random access channel
  • MO data uplink data
  • the resources for transmitting MSG1 may also be called RA-SDT resources.
  • RA-SDT resources may be RACH resources.
  • step S220 the network device sends MSG2 to the terminal device.
  • the MSG2 may include a response to the data to be transmitted.
  • Fig. 3 shows a schematic flowchart of performing SDT in the four-step random access process.
  • step S310 the terminal device sends MSG1 to the network device.
  • MSG1 carries a random access preamble.
  • the network device sends MSG2 to the terminal device.
  • the MSG2 may also be called a random access response (random access response, RAR).
  • MSG2 may also include an uplink grant (UL grant), which is used to schedule the uplink resource indication of MSG3.
  • the terminal device may send MSG3 to the network device on the uplink grant scheduled by the network device.
  • MSG3 carries data to be transmitted.
  • the resource for transmitting MSG3 (that is, the uplink grant scheduled by the network device) may also be called RA-SDT resource.
  • step S340 the network device sends MSG4 to the terminal device.
  • the MSG4 may include a response to the data to be transmitted.
  • Configuring authorization can also be referred to as uplink authorization-free.
  • Configuration authorization may mean that the network device activates an uplink authorization to the terminal device once, and the terminal device can always use the resources (ie, CG resources) specified by the activated uplink authorization to perform uplink transmission without receiving a deactivation instruction.
  • the terminal device may use the CG resource to perform SDT.
  • CG resources used for SDT may also be referred to as CG-SDT resources.
  • the type of configuration authorization can be, for example, CG type (type) 1 or CG type 2.
  • the configuration parameters of CG type 1 can be configured by RRC through high-level signaling.
  • the high-level signaling can be, for example, IE ConfiguredGrantConfig.
  • the parameters required by CG type 2 are also configured by IE ConfiguredGrantConfig, but the resources of CG type 2 need to be activated and deactivated by downlink control information (DCI). Only resources activated by DCI can be used.
  • DCI downlink control information
  • CG type 1 and CG type 2 can be distinguished according to the field rrc-ConfiguredUplinkGrant in IE ConfiguredGrantConfig. If the field rrc-ConfiguredUplinkGrant is configured, the configuration grant type is CG type 1; if the field rrc-ConfiguredUplinkGrant is not configured, the configuration grant type is CG type 2.
  • the terminal device Before the terminal device performs the SDT, it needs to judge whether the terminal device meets the conditions for triggering the SDT. Only when the conditions for triggering SDT are met, the terminal device can perform SDT. If the conditions for triggering the SDT are met, the terminal device can initiate the SDT process. If the condition for triggering the SDT is not satisfied, the terminal device may initiate an RRC resume (resume) procedure. For example, the terminal device can switch from the RRC_INACTIVE state to the RRC_CONNECTED state to perform data transmission.
  • the conditions for triggering SDT may include one or more of the following conditions: the data to be transmitted comes from a radio bearer that can trigger SDT; the data volume of the data to be transmitted is less than a pre-configured data volume threshold; downlink reference signal receiving power (reference signal receiving power, RSRP) is greater than the preconfigured RSRP threshold; valid SDT resources exist.
  • RSRP reference signal receiving power
  • the condition for triggering SDT is related to the radio bearer where the data to be transmitted resides. In this embodiment of the present application, it may be determined whether the terminal device satisfies the condition for triggering the SDT according to whether the data to be transmitted comes from a radio bearer that can trigger the SDT. If the data to be transmitted comes from a radio bearer that can trigger the SDT, the terminal device meets the conditions for triggering the SDT. If the data to be transmitted does not come from a radio bearer that can trigger SDT, the terminal device does not meet the conditions for triggering SDT.
  • the radio bearer may be, for example, a signaling radio bearer (signaling radio bearer, SRB) or a data radio bearer (data radio bearer, DRB).
  • the condition for triggering SDT is related to the data volume of the data to be transmitted. If the amount of data to be transmitted is relatively small, for example, the data to be transmitted is a small packet of data, the terminal device meets the conditions for triggering the SDT. If the amount of data to be transmitted is large, the terminal device does not meet the conditions for triggering the SDT. In the embodiment of the present application, it is also possible to determine whether the terminal device meets the condition for triggering the SDT by comparing the data volume of the data to be transmitted with the data volume threshold. If the data volume of the data to be transmitted is less than the data volume threshold, the terminal device meets the condition for triggering the SDT.
  • the data volume threshold may be preconfigured by the network device, or the data volume threshold may also be predefined in the protocol.
  • the condition for triggering SDT is related to the measurement result of downlink RSRP. If the measurement result of the downlink RSRP is greater than the RSRP threshold, it indicates that the signal quality is good, and the terminal device meets the conditions for triggering the SDT. If the measurement result of the downlink RSRP is less than or equal to the RSRP threshold, it means that the signal quality is poor, and the terminal device does not meet the conditions for triggering the SDT.
  • the RSRP threshold may be pre-configured by the network device, or may also be pre-defined in the protocol.
  • the condition for triggering SDT is related to whether there are valid SDT resources. If there is a valid SDT resource, the terminal device meets the condition for triggering the SDT, and the terminal device can use the valid SDT resource for data transmission. If there is no valid SDT resource, the terminal device does not meet the condition for triggering the SDT, and the terminal device has no available SDT resource for data transmission.
  • the SDT resource may be the RA-SDT resource described above, and/or, the CG-SDT resource.
  • the terminal device when the terminal device judges whether there are valid SDT resources, it can judge the RA-SDT resources and CG-SDT resources at the same time, or it can judge first Whether one of the SDT resources is valid, and then determine whether the other SDT resource is valid. For example, the terminal device may first determine whether there is a valid RA-SDT resource, and then determine whether there is a valid CG-SDT resource. For another example, the terminal device may first determine whether there is a valid CG-SDT resource, and then determine whether there is a valid RA-SDT resource. In the following, the terminal device first determines whether there is a valid CG-SDT resource, and then determines whether there is a valid RA-SDT resource as an example for description.
  • whether the CG-SDT resource is valid is related to whether there is a valid timing advance (timing advance, TA).
  • the TA is related to the uplink synchronization of the terminal equipment. If the TA is valid, it indicates that the terminal equipment is in the uplink synchronization state; if the TA is invalid, it indicates that the terminal equipment is in the uplink out-of-synchronization state.
  • it may be determined whether the CG-SDT resource is valid by judging whether there is a valid TA. If there is a valid TA, it may indicate that the CG-SDT resource is valid. If there is no valid TA, it may indicate that the CG-SDT resource is invalid.
  • Whether the TA is valid is related to whether the TA timer (TA timer, TAT) of the SDT is running, and/or whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • the network device can configure a TA timer for the terminal device, and the TA timer can be used for the terminal device to determine the duration of uplink synchronization. If the TA timer is running, that is, the TA timer has not expired, it means that there is a valid TA. If the TA timer is not running, that is, the TA timer expires, it means that there is no valid TA.
  • the TA timer may be started after the terminal equipment receives an RRC connection release (release) message or the terminal equipment enters the RRC_INACTIVE state.
  • the duration of the TA timer may be configured by the network device to the terminal device. For example, after receiving the RRC connection release message sent by the network device, the terminal device may enter the RRC_INACTIVE state according to the indication information in the RRC connection release message.
  • the configuration information of the SDT-TA timer can also be included in the RRC connection release message, and the terminal device can start the SDT TA timer based on the configuration information of the SDT-TA timer.
  • the terminal device can measure the RSRP of the downlink signal, and the variation of the RSRP can reflect the moving distance of the terminal device.
  • the downlink signal may be, for example, a positioning reference signal (position reference signal, PRS). If the variation of the RSRP measured by the terminal device is small, it means that the moving distance of the terminal device is small, and the TA is still valid. If the variation of the RSRP measured by the terminal device is large, it means that the moving distance of the terminal device is relatively large, and the TA is invalid.
  • the change amount of the RSRP may be compared with the threshold value of the change amount of the RSRP, so as to determine whether the TA is valid.
  • the terminal device may determine that the TA is valid. If the RSRP variation measured by the terminal device exceeds the RSRP variation threshold, the terminal device may determine that the TA is invalid.
  • the RSRP variation threshold may be pre-configured on the network device, or may also be pre-defined in the protocol.
  • the change amount of RSRP measured by the terminal device may refer to an increase amount of RSRP, or may refer to a decrease amount of RSRP.
  • the downlink RSRP measurement result when the terminal device receives a tracking area code (tracking area code, TAC) or RRC release message for the last time is recorded as A.
  • TAC tracking area code
  • RRC release message RRC release message for the last time
  • B the measured value is denoted as B.
  • the aforementioned RSRP variation threshold may include a first RSRP variation threshold and a second RSRP variation threshold.
  • the terminal device may determine that the TA is valid.
  • the first RSRP variation threshold and the second RSRP variation threshold may be equal or different, which is not specifically limited in this embodiment of the present application.
  • whether the CG-SDT resource is valid is related to whether there is a CG-SDT resource on the carrier selected by the terminal device. If there are CG-SDT resources on the selected carrier, the terminal device can determine that the CG-SDT resources are valid. If there is no CG-SDT resource on the selected carrier, the terminal device may determine that the CG-SDT resource is invalid.
  • the carrier selected by the terminal device may be, for example, a normal uplink (normal uplink, NUL) carrier or a supplementary uplink (supply uplink, SUL) carrier.
  • whether the CG-SDT resource is valid is related to whether there is a CG-SDT resource on the synchronization signal block (synchronization signal block, SSB) selected by the terminal device. If there are CG-SDT resources on the selected SSB, the terminal device may determine that the CG-SDT resources are valid. If there is no CG-SDT resource on the selected SSB, the terminal device may determine that the CG-SDT resource is invalid.
  • synchronization signal block synchronization signal block
  • CG-SDT resource is valid can be judged through the above method. If the CG-SDT resource is valid, it means that the terminal device meets the condition for triggering SDT. If the CG-SDT resource is invalid, the terminal device can further determine whether the RA-SDT resource is valid. If the RA-SDT resource is valid, it means that the terminal device meets the condition for triggering SDT. If the RA-SDT resource is invalid, it means that the terminal device does not meet the conditions for triggering SDT.
  • the SDT may fail. If the SDT fails, the terminal device may enter the RRC-IDLE state.
  • SDT failure is related to at least one of the following events: cell reselection occurred during SDT; SDT failure detection timer (SDT failure detection timer) expired; radio link control (radio link control, RLC) reached the maximum number of transmissions .
  • SDT failure detection timer SDT failure detection timer
  • RLC radio link control
  • SON self-organizing network
  • Self-optimization can mean that network devices adaptively adjust network parameters according to network operating conditions to optimize network performance.
  • the terminal device can record the process information of various events, and report the recorded information to the network device after receiving the instruction report sent by the network device.
  • the events recorded by the terminal device may include at least one of the following events: measurement events, connection establishment events, random access events, radio link detection events, and mobility events.
  • Fig. 4 shows a schematic flow chart of a terminal device reporting event information.
  • the network device sends a UE Information Request (UEInformationRequest) to the terminal device, and the UEInformationRequest includes information types that the network device needs the terminal device to report.
  • UEInformationRequest UE Information Request
  • UEInformationRequest may include at least one of the following, for example: log measurement report request (logMeasReportReq), connection establishment failure report request (connEstFailReq), random access report request (ra-ReportReq), RLF report request (rlf-ReportReq), movement history Report request (mobilityHistoryReportReq).
  • logMeasReportReq log measurement report request
  • connEstFailReq connection establishment failure report request
  • ra-ReportReq random access report request
  • rlf-ReportReq RLF report request
  • movement history Report request mobilityHistoryReportReq
  • UEInformationRequest can be expressed as follows:
  • Each of the above request information has a corresponding parameter field.
  • the parameter field of a certain information is set to "true”, it means that the terminal device needs to report the information.
  • the parameter field of a certain information is set to "false” or empty, it means that the terminal device does not need to report the information.
  • the terminal device needs to report logMeasReport, connEstFail, ra-Report, rlf-Report, and mobilityHistoryReportReq.
  • step S430 after the terminal device receives the UEInformationRequest sent by the network device, it can send a UE information response (UEInformationResponse) to the network device according to the instruction of the network device, that is, the value of each information parameter field in the UEInformationRequest.
  • the UEInformationResponse may include information that the network device needs to report from the terminal device.
  • UEInformationResponse can be expressed as follows:
  • the UEInformationResponse sent by the terminal device to the network device includes LogMeasReport, ConnEstFail, Ra-Report, Rlf-Report, and MobilityHistoryReport.
  • the terminal device can record the above-mentioned various types of information, so as to send relevant information to the network device when the network device indicates that relevant information needs to be reported.
  • the terminal device can store the random access process information in the VarRA-Report list maintained by the terminal device after each successful random access or random access failure. After the terminal device receives the ra-ReportReq indicated by the network device, the terminal device reports the recorded ra-Report to the network device.
  • the UEInformationRequest sent by the network device to the terminal device may be actively sent by the network device, or may be sent by the network device to the terminal device after receiving the available record information sent by the terminal device.
  • the method shown in FIG. 4 may further include step S410, the terminal device sends first indication information to the network device, and the first indication information may be used to indicate that there is available record information.
  • the terminal device can record the process information of various events, and send the first indication information to the network device after the process information of the event is recorded.
  • the network device may determine whether to send a UEInformationRequest to the terminal device as required.
  • the network device After receiving the UEInformationResponse sent by the terminal device, the network device can determine whether the parameter configuration of various events is reasonable according to the report information in the UEInformationResponse. If the parameter configuration of a certain type of event is unreasonable, the network device can optimize these parameters.
  • Fig. 5 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • the terminal device sends a first message to the network device.
  • this first message may be referred to as an SDT report message.
  • the first message includes first information of the SDT.
  • the first information may be referred to as SDT process information.
  • the terminal device may notify the network device that the terminal device has the first message available (available).
  • the terminal device may determine whether to send the first message according to an instruction of the network device. For example, during the SDT process, the terminal device may record the first information of the SDT. The terminal device may report the first message to the network device under the instruction of the network device. Taking the SON framework as an example, the network device may send a UEInformationRequest to the terminal device, and the UEInformationRequest may request the terminal device to report the first message. After receiving the SDT report request, the terminal device may send the first message to the network device.
  • the terminal device in the embodiment of the present application records the first information of the SDT and reports the first information of the SDT to the network device, so as to assist the network device to optimize the parameters and/or resources of the SDT.
  • the recording of the first information may be triggered based on at least one event.
  • the terminal device when triggered by at least one event, the terminal device records the first information.
  • the at least one event may be an event related to SDT failure, that is, the at least one event may be an event that causes the terminal device to fail to successfully complete the SDT.
  • the embodiment of the present application does not specifically limit at least one event.
  • at least one event is associated with whether the CG-SDT resource is valid. When the CG-SDT resource is invalid, the terminal device records the first information.
  • at least one event is associated with whether the RA-SDT resource is valid. When the RA-SDT resource is invalid, the terminal device records the first information.
  • the at least one event may be associated with the TA validity of the SDT. When the TA is invalid, or when the terminal device detects that the TA is invalid, the terminal device records the first information.
  • Whether the TA is valid can be judged in the manner described above. As described above, whether the TA is valid is related to whether the TA timer of the SDT expires, and/or whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold. That is to say, at least one event is related to whether the TA timer of the SDT expires, and/or whether the RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  • At least one event is associated with whether the TA timer of the SDT expires.
  • the terminal device records the first information of the SDT.
  • the TA timer of the SDT can be started after the terminal equipment enters the RRC_INACTIVE state, or the TA timer of the SDT can also be started after the terminal equipment receives the RRC release message.
  • the TA timer of the SDT may be configured by the network device for the terminal device through an RRC release message, or the TA timer of the SDT may also be predefined in the protocol.
  • the at least one event is associated with whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • the terminal device can measure the RSRP and compare the two measured RSRPs. If the variation of the RSRP measured twice exceeds the RSRP variation threshold, the terminal device may record the first information of the SDT.
  • the RSRP measured twice may refer to the RSRP measured twice in a row, or may also refer to the currently measured RSRP and the RSRP measured when the last TAC or RRC release message is received.
  • the change amount of RSRP measured by the terminal device may refer to an increase amount of RSRP, or may refer to a decrease amount of RSRP.
  • the downlink RSRP measurement result when the terminal device receives the TAC or RRC release message for the last time is recorded as A, and the terminal device can measure the downlink RSRP when judging whether the TA is valid (or whether to trigger the SDT). Record the value as B.
  • the aforementioned RSRP variation threshold may include a first RSRP variation threshold and a second RSRP variation threshold. If the increase from B to A does not exceed the first RSRP change threshold, or the decrease from B to A does not exceed the second RSRP change threshold, the terminal device may determine that the TA is valid.
  • the first RSRP variation threshold and the second RSRP variation threshold may be equal or different, which is not specifically limited in this embodiment of the present application.
  • the terminal device may record the first information of the SDT when one or more of the following events are met at the same time.
  • At least one event may include the first event, and the first event may refer to the SDT being triggered after the TA timer of the SDT expires, that is, SDT-TAT expires after which SDT is trigger, e.g., no longer than a configured time slot.
  • the terminal device can judge whether to trigger SDT according to the method described above. If the conditions for triggering SDT are met, the terminal device can initiate an SDT process and perform uplink and downlink data transmission. However, if the SDT is triggered after the TA timer of the SDT expires, the terminal device cannot successfully complete the SDT process because the TA timer of the SDT expires. If this happens, it means that the SDT parameter or resource configuration is unreasonable. Therefore, the terminal device may record the first information of the SDT when triggered by the first event.
  • the SDT is triggered after the TA timer of the SDT expires, which can refer to the SDT being triggered within the preset time after the TA timer of the SDT expires, or the time between the time when the TA timer of the SDT expires and the time when the SDT is triggered
  • the interval is less than the preset time.
  • the preset time may be a short time, that is, the SDT is triggered soon after the TA timer of the SDT expires.
  • the preset time may be pre-configured by the network device, or pre-defined in the protocol.
  • At least one event may include a second event, and the second event may refer to that the TA timer of the SDT expires, and the variation of the RSRP measured by the terminal device does not exceed the variation threshold of the RSRP.
  • SDT-TAT expires but RSRP change is within the thres (For case both TAT and RSRP change threshold are configured for TA validation. Both the TA timer and RSRP change can be used to determine whether the TA is valid.
  • the terminal device measures the RSRP
  • the change amount does not exceed the change amount threshold of RSRP, it means that the mobility of the terminal equipment is low, and the terminal equipment does not move in a large range. In this case, the TA of the terminal equipment is valid.
  • the terminal device can record the first information of the SDT under the trigger of the second event .
  • At least one event may include a third event, and the third event may refer to that the TA timer of the SDT expires after the terminal device triggers the CG-SDT.
  • Triggering the CG-SDT may include triggering a judgment on whether the CG-SDT resource is valid.
  • the conditions for triggering SDT include whether there are valid RA-SDT resources and/or CG-SDT resources.
  • the terminal device can first judge whether there are valid CG-SDT resources, and if there are no valid CG-SDT resources, the terminal device can further Determine whether there is a valid RA-SDT resource.
  • the TA timer of the SDT expires. It may mean that the TA timer of the SDT of the terminal device expires within a preset time after the CG-SDT is triggered.
  • the preset time can be a short time. For example, after the terminal device triggers the CG-SDT, the TA timer of the SDT expires immediately. If the TA timer of the SDT expires after the terminal device triggers the CG-SDT, the terminal device has no time to perform RA-SDT. If this happens, it means that the configuration of the parameters of the SDT (such as the TA timer) is unreasonable. Therefore, the terminal device may record the first information of the SDT under the trigger of the third event.
  • the at least one event may include a fourth event, and the fourth event may refer to that the TA timer of the SDT expires, and the terminal device detects that the target SSB satisfies the measurement threshold for triggering the CG-SDT.
  • the target SSB is associated with the CG resource (that is, the CG resource is configured on the target SSB).
  • SDT-TAT expires after which SDT is trigger, e.g., There is qualified SSB.
  • the fourth event may refer to that the TA timer of the SDT expires, the SDT is triggered and the terminal device detects that the target SSB meets the measurement threshold for triggering the CG-SDT.
  • the terminal device Before sending the data to be transmitted, the terminal device can measure the SSB, and select the target SSB whose measurement result satisfies the preset value according to the signal measurement result of the SSB. Further, the terminal device may send data to be transmitted on the target SSB.
  • the signal measurement result of the SSB may include at least one of a measurement result of RSRP, a measurement result of reference signal receiving quality (RSRQ) and a measurement result of signal-to jamming and noise ratio (SINR). kind.
  • the terminal device can use this SSB for SDT. However, if the TA timer of the SDT expires, the terminal device will not be able to successfully complete the SDT process. If this happens, it means that the configuration of SDT parameters (such as TA timer) or resources (such as SSB resources or CG resources) is unreasonable. Therefore, the terminal device may record the first information of the SDT under the trigger of the fourth event.
  • SDT parameters such as TA timer
  • resources such as SSB resources or CG resources
  • At least one event includes a fifth event, and the fifth event may refer to that the TA timer of the SDT does not expire, and the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • the fifth event may refer to that the TA timer of the SDT does not expire, and the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • SDT-TAT is running but RSRP change is larger than the thres.
  • Both the TA timer and the variation of RSRP can be used to determine whether the TA is valid.
  • the variation of the RSRP measured by the terminal device exceeds the variation threshold of the RSRP, it indicates that the mobility of the terminal device is high, and the terminal device has moved in a large range. In this case, the TA of the terminal device is invalid.
  • the TA timer does not match the RSRP change threshold.
  • the terminal device cannot successfully complete the SDT process. If this happens, it means that the SDT parameters (such as the TA timer or the RSRP variation threshold) are not properly configured. Therefore, the terminal device may record the first information of the SDT under the trigger of the fifth event.
  • the embodiment of the present application does not specifically limit the specific content of the first information.
  • the first information is related to the TA timer.
  • the first information is related to RSRP measurement.
  • the first information of the SDT reported by the terminal device can assist the network device to optimize the duration of the TA timer and the RSRP variation threshold used to ensure the validity of the TA.
  • the specific content of the first information will be described in detail below. It can be understood that the contents of the first information described below are combined with each other.
  • the first information may include the duration of the TA timer (such as SDT-TAT value).
  • the terminal device can report the duration of the TA timer to the network device, so that the network device can optimize the configuration parameters of the SDT (such as the duration of the TA timer).
  • the terminal device may report the duration of the TA timer to the network device under the trigger of at least one of the above-mentioned first event, second event, third event, fourth event, and fifth event.
  • the network device can optimize the parameters of the SDT (such as the duration of the TA timer) according to the duration of the TA timer.
  • the first information may include SDT-associated signal measurement information.
  • SDT-associated signals may include SSB and/or PRS, for example.
  • the terminal device may measure the SSB to determine the target SSB.
  • the terminal device may measure the PRS to determine whether the RSRP variation exceeds the RSRP variation threshold.
  • the signal measurement information may include, for example, at least one of the following: RSRP, RSRQ, and SINR.
  • the terminal device can measure the RSRP of the SSB.
  • the terminal device may measure the RSRQ of the PRS.
  • the terminal device may report the signal measurement information associated with the SDT to the network device under the trigger of at least one of the foregoing event 2, event 4, and event 5.
  • the network device can optimize the parameters of the SDT (such as the RSRP variation threshold) according to the signal measurement information associated with the SDT.
  • the first information may include the sending or receiving time of the RRC release message.
  • the terminal device can start the TA timer after receiving the RRC release message. Therefore, the time when the network device sends the RRC release message or the time when the terminal device receives the RRC release message is associated with the timeout of the TA timer.
  • the terminal device can send the RRC release message
  • the sending or receiving time of the message is reported to the network device, so that the network device can optimize the parameters of the SDT (such as the sending or receiving time of the RRC release message).
  • the first information may include the time when the terminal device enters the inactive state.
  • the terminal device can start the TA timer after entering the inactive state. Therefore, the time when the terminal device enters the inactive state is related to the timeout of the TA timer.
  • the terminal device can enter the inactive report the time of the state to the network device, so that the network device can optimize the configuration parameters of the SDT (such as the time for the terminal device to enter the inactive state).
  • the first information may include the trigger time of the SDT. Taking event 1 described above as an example, the SDT is triggered after the TA timer of the SDT expires.
  • the unreasonable factor of Event 1 may be that the time when SDT is triggered is unreasonable. Therefore, the terminal device may report the triggering time of the SDT to the network device under the trigger of the first event, so that the network device optimizes the parameters of the SDT.
  • the first information may include the trigger time of SDT and the time interval between RRC release messages.
  • Time duration between the reception of RRC release and trigger of SDT Taking event 1 described above as an example, the SDT is triggered after the TA timer of the SDT expires. The unreasonable factor of event 1 may be that the triggering time of the SDT does not match the TA timer. Whether the TA timer expires is related to the sending or receiving time of the RRC release message, that is, the triggering of event 1 is related to the time interval between the triggering time of the SDT and the RRC release message. Therefore, the terminal device can report the SDT trigger time and the time interval between the RRC release message to the network device, so that the network device can optimize the parameters of the SDT (such as the sending or receiving time of the RRC release message).
  • the first information may include the time interval between the triggering time of the SDT and the terminal device entering the inactive state. Still taking the first event described above as an example, the SDT is triggered after the TA timer of the SDT expires. The unreasonable factor of event 1 may be that the triggering time of the SDT does not match the TA timer. Whether the TA timer expires is related to the time when the terminal device enters the inactive state, that is, the triggering of event 1 is related to the time interval between the trigger time of SDT and the terminal device entering the inactive state. Therefore, the terminal device can report the SDT trigger time and the time interval between the terminal device entering the inactive state to the network device, so that the network device can optimize the parameters of the SDT (such as the time for the terminal device to enter the inactive state).
  • the first information may include an RSRP variation threshold.
  • the triggering of Event 2 and Event 5 is related to the RSRP variation threshold. That is, if the RSRP variation threshold is set improperly, Event 2 and Event 5 will occur. Therefore, the terminal device may report the RSRP change threshold to the network device, so that the network device optimizes the SDT parameters (such as the RSRP change threshold).
  • Fig. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device shown in FIG. 6 may be any terminal device described above.
  • the terminal device 600 includes a sending unit 610 .
  • the sending unit 610 may be configured to send a first message to the network device, where the first message includes first information of the SDT.
  • the recording of the first information is triggered based on at least one event, and the at least one event is associated with the TA validity of the SDT.
  • the at least one event is associated with whether the TA timer of the SDT expires, and/or whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • the recording of the first information is triggered based on at least one event, and the at least one event includes one or more of the following events: the SDT is triggered after the TA timer of the SDT expires ; The TA timer of the SDT expires, and the RSRP change measured by the terminal device does not exceed the RSRP change threshold; after the terminal device triggers CG-SDT, the TA timer of the SDT expires; The TA timer of the SDT expires, and the terminal device detects that the target SSB meets the measurement threshold for triggering CG-SDT, wherein the target SSB is associated with a CG resource; or, the TA timer of the SDT does not expire, and The RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  • the triggering of the SDT after the TA timer of the SDT expires includes: the SDT is triggered after the TA timer of the SDT expires, and the trigger time of the SDT is the same as the The time interval between the timeouts of the TA timer of the SDT does not exceed the first threshold.
  • the first information includes one or more of the following information: the duration of the TA timer of the SDT; the signal measurement information associated with the SDT; the sending or receiving time of the RRC release message; the The time when the terminal equipment enters the inactive state; the trigger time of the SDT; the time interval between the trigger time of the SDT and the RRC release message; or the RSRP variation threshold.
  • Fig. 7 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device shown in FIG. 7 may be any network device described above.
  • the network device 700 includes a receiving unit 710 .
  • the receiving unit 710 may be configured to receive a first message sent by the terminal device, where the first message includes first information of the SDT.
  • the recording of the first information is triggered based on at least one event, and the at least one event is associated with the TA validity of the SDT.
  • the at least one event is associated with whether the TA timer of the SDT expires, and/or whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold.
  • the recording of the first information is triggered based on at least one event, and the at least one event includes one or more of the following events: the SDT is triggered after the TA timer of the SDT expires ; The TA timer of the SDT expires, and the RSRP change measured by the terminal device does not exceed the RSRP change threshold; after the terminal device triggers CG-SDT, the TA timer of the SDT expires; The TA timer of the SDT expires, and the terminal device detects that the target SSB meets the measurement threshold for triggering CG-SDT, wherein the target SSB is associated with a CG resource; or, the TA timer of the SDT does not expire, and The RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  • the triggering of the SDT after the TA timer of the SDT expires includes: the SDT is triggered after the TA timer of the SDT expires, and the trigger time of the SDT is the same as the The time interval between the timeouts of the TA timer of the SDT does not exceed the first threshold.
  • the first information includes one or more of the following information: the duration of the TA timer of the SDT; the signal measurement information associated with the SDT; the sending or receiving time of the RRC release message; the The time when the terminal equipment enters the inactive state; the trigger time of the SDT; the time interval between the trigger time of the SDT and the RRC release message; or the RSRP variation threshold.
  • Fig. 8 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the dashed line in Figure 8 indicates that the unit or module is optional.
  • the apparatus 800 may be used to implement the methods described in the foregoing method embodiments.
  • Apparatus 800 may be a chip, a terminal device or a network device.
  • Apparatus 800 may include one or more processors 810 .
  • the processor 810 may support the device 800 to implement the methods described in the foregoing method embodiments.
  • the processor 810 may be a general purpose processor or a special purpose processor.
  • the processor may be a central processing unit (central processing unit, CPU).
  • the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • Apparatus 800 may also include one or more memories 820 .
  • a program is stored in the memory 820, and the program can be executed by the processor 810, so that the processor 810 executes the methods described in the foregoing method embodiments.
  • the memory 820 may be independent from the processor 810 or may be integrated in the processor 810 .
  • the apparatus 800 may also include a transceiver 830 .
  • the processor 810 can communicate with other devices or chips through the transceiver 830 .
  • the processor 810 may send and receive data with other devices or chips through the transceiver 830 .
  • the embodiment of the present application also provides a computer-readable storage medium for storing programs.
  • the computer-readable storage medium can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes programs.
  • the computer program product can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital versatile disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Selon le procédé : le dispositif terminal envoie un premier message au dispositif de réseau, le premier message comprenant des premières informations de SDT. Le dispositif terminal rapporte, au dispositif de réseau, le premier message comprenant les premières informations de la SDT, de sorte que le dispositif de réseau optimise des paramètres pertinents de la SDT sur la base des premières informations.
PCT/CN2021/137897 2021-12-14 2021-12-14 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2023108416A1 (fr)

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CN202180102816.3A CN118318494A (zh) 2021-12-14 2021-12-14 无线通信的方法、终端设备及网络设备
PCT/CN2021/137897 WO2023108416A1 (fr) 2021-12-14 2021-12-14 Procédé de communication sans fil, dispositif terminal et dispositif de réseau

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