WO2023108416A1 - Wireless communication method, terminal device, and network device - Google Patents

Wireless communication method, terminal device, and network device 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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WIPO (PCT)
Prior art keywords
sdt
terminal device
timer
rsrp
expires
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PCT/CN2021/137897
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French (fr)
Chinese (zh)
Inventor
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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Priority to PCT/CN2021/137897 priority Critical patent/WO2023108416A1/en
Publication of WO2023108416A1 publication Critical patent/WO2023108416A1/en

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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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Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: the terminal device sends a first message to the network device, the first message comprising first information of SDT. The terminal device reports, to the network device, the first message comprising the first information of the SDT, so that the network device optimizes relevant parameters of the SDT on the basis of the first information.

Description

无线通信的方法、终端设备及网络设备Wireless communication method, terminal device and network device 技术领域technical field
本申请涉及通信技术领域，并且更为具体地，涉及一种无线通信的方法、终端设备及网络设备。The present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.
背景技术Background technique
自组织网络(self-organizing network，SON)可以根据终端设备上报的信息优化网络参数配置。但是，目前SON框架并不支持小数据传输(small data transmission，SDT)，导致网络设备无法对SDT的相关参数进行优化。Self-organizing network (self-organizing network, SON) can optimize network parameter configuration according to the information reported by terminal equipment. However, 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.
发明内容Contents of the invention
针对上述问题，本申请提供一种无线通信的方法、终端设备及网络设备。In view of the above problems, the present application provides a wireless communication method, a terminal device, and a network device.
第一方面，提供了一种无线通信的方法，包括：终端设备向网络设备发送第一消息，所述第一消息包括SDT的第一信息。In a first aspect, a wireless communication method is provided, including: a terminal device sends a first message to a network device, where the first message includes first information of an SDT.
第二方面，提供了一种无线通信的方法，包括：网络设备接收终端设备发送的第一消息，所述第一消息包括SDT的第一信息。In a second aspect, a wireless communication method is provided, including: a network device receiving a first message sent by a terminal device, where the first message includes first information of an SDT.
第三方面，提供了一种终端设备，包括：发送单元，用于向网络设备发送第一消息，所述第一消息包括SDT的第一信息。In a third aspect, a terminal device is provided, including: a sending unit, configured to send a first message to a network device, where the first message includes first information of an SDT.
第四方面，提供了一种网络设备，包括：接收单元，用于接收终端设备发送的第一消息，所述第一消息包括SDT的第一信息。In a fourth aspect, a network device is provided, 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.
第五方面，提供一种终端设备，包括处理器、存储器、通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述终端设备执行第一方面所述的方法。In a fifth aspect, a terminal device is provided, 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.
第六方面，提供一种网络设备，包括处理器、存储器、通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述网络设备执行第二方面所述的方法。In a sixth aspect, a network device is provided, 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.
第七方面，提供一种装置，包括处理器，用于从存储器中调用程序，以执行第一方面所述的方法。In a seventh aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the first aspect.
第八方面，提供一种装置，包括处理器，用于从存储器中调用程序，以执行第二方面所述的方法。In an eighth aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the second aspect.
第九方面，提供一种芯片，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行第一方面所述的方法。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.
第十方面，提供一种芯片，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行第二方面所述的方法。In a tenth aspect, a chip is provided, 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.
第十一方面，提供一种计算机可读存储介质，其上存储有程序，所述程序使得计算机执行第一方面所述的方法。In an eleventh aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the first aspect.
第十二方面，提供一种计算机可读存储介质，其上存储有程序，所述程序使得计算机执行第二方面所述的方法。In a twelfth aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the second aspect.
第十三方面，提供一种计算机程序产品，包括程序，所述程序使得计算机执行第一方面所述的方法。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.
第十四方面，提供一种计算机程序产品，包括程序，所述程序使得计算机执行第二方面所述的方法。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.
第十五方面，提供一种计算机程序，所述计算机程序使得计算机执行第一方面所述的方法。A fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.
第十六方面，提供一种计算机程序，所述计算机程序使得计算机执行第二方面所述的方法。A sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.
本申请实施例中，终端设备向网络设备上报包含SDT的第一信息，有助于网络设备基于该第一信息对SDT的相关参数进行优化。In the embodiment of the present application, 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.
附图说明Description of drawings
图1是可应用于本申请实施例的通信***的***架构示例图。Fig. 1 is an example diagram of a system architecture of a communication system applicable to an embodiment of the present application.
图2是基于两步随机接入过程进行SDT的示意性流程图。Fig. 2 is a schematic flowchart of performing SDT based on a two-step random access process.
图3是基于四步随机接入过程进行SDT的示意性流程图。Fig. 3 is a schematic flowchart of performing SDT based on a four-step random access process.
图4是SON架构下进行信息上报的示意性流程图。Fig. 4 is a schematic flowchart of information reporting under the SON architecture.
图5是本申请一实施例提供的无线通信方法的示意性流程图。Fig. 5 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
图6是本申请一实施例提供的终端设备的结构示意图。Fig. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
图7是本申请一实施例提供的网络设备的结构示意图。Fig. 7 is a schematic structural diagram of a network device provided by an embodiment of the present application.
图8是本申请一实施例提供的通信装置的结构示意图。Fig. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
具体实施方式Detailed ways
下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below with reference to the accompanying drawings.
图1是本申请实施例应用的无线通信***100。该无线通信***100可以包括网络设备110和终端设备120。网络设备110可以是与终端设备120通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备120进行通信。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.
图1示例性地示出了一个网络设备和两个终端，可选地，该无线通信***100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。Figure 1 exemplarily shows one network device and two terminals. Optionally, 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.
可选地，该无线通信***100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。Optionally, 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.
应理解，本申请实施例的技术方案可以应用于各种通信***，例如：第五代(5th generation，5G)***或新无线(new radio，NR)、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)等。本申请提供的技术方案还可以应用于未来的通信***，如第六代移动通信***，又如卫星通信***，等等。It should be understood that 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.
本申请实施例中的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(mobile station，MS)、移动终端(mobile Terminal，MT)、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。本申请实施例中的终端设备可以是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机，例如具有无线连接功能的手持式设备、车载设备等。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。可选地，UE可以用于充当基站。例如，UE可以充当调度实体，其在V2X或D2D等中的UE之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。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. Optionally, UE can be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, 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.
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备也可以称 为接入网设备或无线接入网设备，如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站MeNB、辅站SeNB、多制式无线(MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access piont，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(Remote Radio Unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及设备到设备D2D、车辆外联(vehicle-to-everything，V2X)、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信***中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。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. 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. 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. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. 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.
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。Base stations can be fixed or mobile. For example, 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. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.
在一些部署中，本申请实施例中的网络设备可以是指CU或者DU，或者，网络设备包括CU和DU。gNB还可以包括AAU。In some deployments, 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.
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。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. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.
应理解，本申请中涉及到的通信设备，可以为网络设备，或者也可以为终端设备。例如，第一通信设备为网络设备，第二通信设备为终端设备。又如，第一通信设备为终端设备，第二通信设备为网络设备。又如，第一通信设备和第二通信设备均为网络设备，或者均为终端设备。It should be understood that the communication device mentioned in this application may be a network device, or may also be a terminal device. For example, the first communication device is a network device, and the second communication device is a terminal device. In another example, the first communication device is a terminal device, and the second communication device is a network device. In another example, both the first communication device and the second communication device are network devices, or both are terminal devices.
还应理解，本申请中的通信设备的全部或部分功能也可以通过在硬件上运行的软件功能来实现，或者通过平台(例如云平台)上实例化的虚拟化功能来实现。It should also be understood that all or part of the functions of the communication device in this application may also be realized by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).
目前，协议中定义了终端设备的三种无线资源控制(radio resource control，RRC)状态：RRC连接(RRC_CONNECTED)态、RRC空闲(RRC_IDLE)态和RRC非激活(RRC_INACTIVE)态。Currently, the protocol defines three radio resource control (RRC) states of terminal equipment: RRC connected (RRC_CONNECTED) state, RRC idle (RRC_IDLE) state and RRC inactive (RRC_INACTIVE) state.
RRC_CONNECTED态可以指终端设备完成随机接入过程之后，未进行RRC释放时所处的状态。终端设备和网络设备(例如接入网络设备)之间存在RRC连接。在RRC_CONNECTED态下，终端设备可以和网络设备进行数据传输，如进行下行数据传输和/或上行数据传输。或者，终端设备也可以和网络设备进行终端设备特定的数据信道和/或控制信道的传输，以传输该终端设备的特定信息或单播信息。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). In the RRC_CONNECTED state, the terminal device can perform data transmission with the network device, such as performing downlink data transmission and/or uplink data transmission. Alternatively, 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.
RRC_IDLE态是指终端设备在小区中驻留，但是未进行随机接入时终端设备所处的状态。终端设备通常在开机之后，或者在RRC释放之后进入RRC_IDLE态。在RRC_IDLE态下，终端设备和网络设备(例如驻留网络设备)之间没有RRC连接，网络设备没有存储终端设备的上下文，网络设备与核心网之间没有建立针对该终端设备的连接。如果终端设备需要从RRC_IDLE态进入RRC_CONNECTED态，则需要发起RRC连接建立过程。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. In 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.
RRC_INACTIVE态是为了降低空口信令、快速恢复无线连接和快速恢复数据业务，从节能的角度新引入的状态。RRC_INACTIVE态是处于连接态和空闲态之间的一个状态。终端设备之前已经进入了RRC_CONNECTED态，然后释放了与网络设备的RRC连接、 无线承载和无线资源，但是网络设备保存了该终端设备的上下文，以便快速恢复RRC连接。另外，网络设备与核心网建立的针对该终端设备的连接没有被释放，也就是说，RAN与CN之间的用户面承载和控制面承载仍被维护，即存在CN-NR的连接。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. In addition, 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.
对于数据传输不频繁的终端设备，终端设备可以保持在RRC_INACTIVE态，以节省电量。在第16版本(release 16，Rel-16)之前，处于RRC_INACTIVE态的终端设备不支持数据传输，即不支持移动发起(mobile original，MO)数据和移动终止(mobile terminated，MT)数据的传输。MO数据指数据的发送端为终端设备，消息的传递方向是终端设备到网络设备。MO数据也可以称为上行数据。MT数据指数据的发送端为网络设备，消息的传递方向是网络设备到终端设备。MT数据也可以称为下行数据。For a terminal device with infrequent data transmission, the terminal device may remain in the RRC_INACTIVE state to save power. Before the 16th version (release 16, Rel-16), 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.
当MO数据或MT数据到达时，终端设备需要恢复RRC连接，从而进入RRC_CONNECTED态。在RRC_CONNECTED态，终端设备可以进行MO数据或MT数据的传输。待MO数据或MT数据传输完成后，终端设备再释放RRC连接，回到RRC_INACTIVE态。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.
在上述过程中，终端设备需要从RRC_INACTIVE态切换到RRC_CONNECTED态，然后再从RRC_CONNECTED态切换到RRC_INACTIVE态。不同RRC状态之间的切换会导致终端设备功耗增加。但在一些场景下，处于RRC_INACTIVE态的终端设备需要传输一些数据量小且传输频率低的数据(可称为小包数据)，例如即时通讯消息、心跳包、周期性数据等。如果终端设备切换到RRC_CONNECTED态再进行数据传输，终端设备进行RRC状态切换时所需要的信令开销甚至会大于传输这些数据所需要的开销，从而导致不必要的功耗和信令开销。In the above process, 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. However, in some scenarios, 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.
为了降低终端设备的功耗，Rel-17中讨论了RRC_INACTIVE态下小数据传输SDT方案。在该方案中，终端设备不需要从RRC_INACTIVE态切换至RRC_CONNECTED态进行小数据传输，而是在RRC_INACTIVE态下即可进行小数据传输。本申请实施例的小数据传输可以包括上行小数据传输和下行小数据传输。下文将主要针对上行小数据传输进行描述。In order to reduce the power consumption of the terminal equipment, the small data transmission SDT scheme in the RRC_INACTIVE state is discussed in Rel-17. In this solution, 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.
在RRC_INACTIVE态下，终端设备进行SDT的方式有两种。一种是基于随机接入过程的SDT，另一种是基于配置授权(configured grant，CG)的SDT。下面分别对这两种情况进行介绍。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.
基于随机接入过程的SDT可以指，终端设备可以在随机接入的过程中进行SDT。随机接入的方式可以为两步随机接入过程，或者，也可以为四步随机接入过程。对于两步随机接入过程，终端设备可以在消息1(message 1，MSG1)中进行SDT。也就是说，两步随机接入过程的MSG1可用于承载数据。对于四步随机接入过程，终端设备可以在MSG3中进行SDT。也就是说，四步随机接入过程的MSG3可用于承载数据。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. For the two-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. For the four-step random access process, 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.
在随机接入过程中，终端设备进行SDT的资源可以称为RA-SDT资源。In the random access process, the resource for the terminal device to perform SDT may be called RA-SDT resource.
下面结合图2和图3，分别对两步随机接入过程和四步随机接入过程进行描述。The two-step random access process and the four-step random access process are described below with reference to FIG. 2 and FIG. 3 .
图2示出的是在两步随机接入过程中进行SDT的示意性流程图。Fig. 2 shows a schematic flowchart of performing SDT in the two-step random access process.
在步骤S210、终端设备向网络设备发送MSG1。终端设备可以在网络设备配置的随机接入信道(random access channel，RACH)资源上发送MSG1。MSG1中可以携带待传输数据(或称为上行数据或MO数据)。如果利用MSG1进行SDT，则传输MSG1的资源也可以称为RA-SDT资源。例如，RA-SDT资源可以为RACH资源。In step S210, 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). If MSG1 is used to perform SDT, the resources for transmitting MSG1 may also be called RA-SDT resources. For example, RA-SDT resources may be RACH resources.
在步骤S220、网络设备向终端设备发送MSG2。该MSG2中可以包括针对待传输数据的响应。In step S220, the network device sends MSG2 to the terminal device. The MSG2 may include a response to the data to be transmitted.
图3示出的是在四步随机接入过程中进行SDT的示意性流程图。Fig. 3 shows a schematic flowchart of performing SDT in the four-step random access process.
在步骤S310、终端设备向网络设备发送MSG1。MSG1中携带随机接入前导码。In step S310, the terminal device sends MSG1 to the network device. MSG1 carries a random access preamble.
在步骤S320、网络设备向终端设备发送MSG2。该MSG2也可以称为随机接入响应(random access response，RAR)。MSG2中还可以包括上行授权(UL grant)，用于调度 MSG3的上行资源指示。In step S320, 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.
在步骤S330、终端设备可以在网络设备调度的上行授权上向网络设备发送MSG3。其中，MSG3中携带待传输数据。如果利用MSG3进行SDT，则传输MSG3的资源(即网络设备调度的上行授权)也可以称为RA-SDT资源。In step S330, the terminal device may send MSG3 to the network device on the uplink grant scheduled by the network device. Wherein, MSG3 carries data to be transmitted. If MSG3 is used to perform SDT, the resource for transmitting MSG3 (that is, the uplink grant scheduled by the network device) may also be called RA-SDT resource.
在步骤S340、网络设备向终端设备发送MSG4。该MSG4中可以包括针对待传输数据的响应。In step S340, the network device sends MSG4 to the terminal device. The MSG4 may include a response to the data to be transmitted.
配置授权也可以称为上行免授权。配置授权可以指网络设备通过激活一次上行授权给终端设备，在没有接收到去激活指示的情况下，终端设备可以一直使用激活的上行授权所指定的资源(即CG资源)进行上行传输。在本申请实施例中，终端设备可以使用CG资源进行SDT。用于进行SDT的CG资源也可以称为CG-SDT资源。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. In the embodiment of the present application, 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.
配置授权的类型例如可以为CG类型(type)1或CG type 2。CG type 1的配置参数可以由RRC通过高层信令进行配置。该高层信令例如可以为IE ConfiguredGrantConfig。CG type 2需要的参数也是由IE ConfiguredGrantConfig进行配置，但是CG type 2的资源需要由下行控制信息(downlink control information，DCI)指示资源的激活和去激活，只有经过DCI激活的资源才能被使用。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.
CG type 1和CG type 2可以根据IE ConfiguredGrantConfig中的字段rrc-ConfiguredUplinkGrant进行区别。如果配置了字段rrc-ConfiguredUplinkGrant，则配置授权的类型为CG type 1，如果未配置字段rrc-ConfiguredUplinkGrant，则配置授权的类型为CG type 2。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.
终端设备在进行SDT之前，需要先判断终端设备是否满足触发SDT的条件。只有满足触发SDT的条件，终端设备才可以进行SDT。如果满足触发SDT的条件，则终端设备可以发起SDT流程。如果不满足触发SDT的条件，则终端设备可以发起RRC恢复(resume)流程。例如，终端设备可以从RRC_INACTIVE态切换到RRC_CONNECTED态，从而进行数据的传输。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.
触发SDT的条件可以包括以下条件中的一种或多种：待传输数据来自可以触发SDT的无线承载；待传输数据的数据量小于预配置的数据量门限；下行参考信号接收功率(reference signal receiving power，RSRP)的测量结果大于预配置的RSRP门限；存在有效的SDT资源。下面对上述条件分别进行介绍。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. The above conditions are introduced respectively below.
在一些实施例中，触发SDT的条件与待传输数据所在的无线承载有关。本申请实施例可以根据待传输数据是否来自可以触发SDT的无线承载，确定终端设备是否满足触发SDT的条件。如果待传输数据来自可以触发SDT的无线承载，则终端设备满足触发SDT的条件。如果待传输数据不是来自可以触发SDT的无线承载，则终端设备不满足触发SDT的条件。该无线承载例如可为信令无线承载(signaling radio bearer，SRB)或数据无线承载(data radio bearer，DRB)。In some embodiments, 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).
在另一些实施例中，触发SDT的条件与待传输数据的数据量有关。如果待传输数据的数据量较小，如待传输数据为小包数据，则终端设备满足触发SDT的条件。如果待传输数据的数据量较大，则终端设备不满足在触发SDT的条件。本申请实施例还可以通过将待传输数据的数据量与数据量门限进行比较，以确定终端设备是否满足触发SDT的条件。如果待传输数据的数据量小于数据量门限，则终端设备满足触发SDT的条件。如果待传输数据的数据量大于或等于数据量门限，则终端设备不满足触发SDT的条件。数据量门限可以是网络设备预配置的，或者数据量门限也可以是协议中预定义的。In some other embodiments, 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. If the data volume of the data to be transmitted is greater than or equal to the data volume threshold, the terminal device does not meet 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.
在另一些实施例中，触发SDT的条件与下行RSRP的测量结果有关。如果下行RSRP的测量结果大于RSRP门限，则表示信号质量较好，则终端设备满足触发SDT的条件。如果下行RSRP的测量结果小于或等于RSRP门限，则表示信号质量较差，则终端设备不满足触发SDT的条件。RSRP门限可以是网络设备预配置的，或者也可以是协议中预定义的。In some other embodiments, 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.
在另一些实施例中，触发SDT的条件与是否存在有效的SDT资源有关。如果存在有效的SDT资源，则终端设备满足触发SDT的条件，终端设备可以使用有效的SDT资源进行数据传输。如果不存在有效的SDT资源，则终端设备不满足触发SDT的条件，终端设备没有可用的SDT资源进行数据传输。SDT资源可以为上文描述的RA-SDT资源，和/或，CG-SDT资源。In some other embodiments, 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.
如果终端设备同时被配置了RA-SDT资源和CG-SDT资源，则终端设备在判断是否存在有效的SDT资源时，可以对RA-SDT资源和CG-SDT资源同时进行判断，或者也可以先判断其中一种SDT资源是否有效，然后再判断另一种SDT资源是否有效。例如，终端设备可以先判断是否存在有效的RA-SDT资源，然后再判断是否存在有效的CG-SDT资源。又例如，终端设备也可以先判断是否存在有效的CG-SDT资源，然后再判断是否存在有效的RA-SDT资源。下文以终端设备先判断是否存在有效的CG-SDT资源，然后再判断是否存在有效的RA-SDT资源为例，进行描述。If the terminal device is configured with RA-SDT resources and CG-SDT resources at the same time, 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.
在一些实施例中，CG-SDT资源是否有效与是否存在有效的时间提前量(timing advance，TA)有关。TA与终端设备的上行同步有关，如果TA有效，则表示终端设备处于上行同步状态；如果TA无效，则表示终端设备处于上行失步状态。本申请实施例可以通过判断是否存在有效的TA，确定CG-SDT资源是否有效。如果存在有效的TA，则可以表示CG-SDT资源有效。如果不存在有效的TA，则可以表示CG-SDT资源无效。In some embodiments, 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. In this embodiment of the present application, 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.
TA是否有效与SDT的TA定时器(TA timer，TAT)是否处于运行状态，和/或，终端设备测量的RSRP的变化量是否超过RSRP变化量阈值有关。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.
网络设备可以为终端设备配置TA定时器，TA定时器可用于终端设备判断处于上行同步的时长。如果TA定时器处于运行状态，即TA定时器未超时，则表示存在有效的TA。如果TA定时器没有处于运行状态，即TA定时器超时，则表示不存在有效的TA。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.
TA定时器可以是在终端设备接收到RRC连接释放(release)消息或终端设备进入RRC_INACTIVE态后启动的。TA定时器的时长可以是网络设备配置给终端设备的。例如，终端设备接收到网络设备发送的RRC连接释放消息后，可以根据RRC连接释放消息中的指示信息进入RRC_INACTIVE态。RRC连接释放消息中还可以包括SDT-TA定时器的配置信息，终端设备可以基于SDT-TA定时器的配置信息，启动SDT TA定时器。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.
终端设备可以对下行信号的RSRP进行测量，RSRP的变化量可以反映终端设备的移动距离。该下行信号例如可以为定位参考信号(position reference signal，PRS)。如果终端设备测量的RSRP的变化量较小，表示终端设备的移动距离较小，则TA仍然有效。如果终端设备测量的RSRP的变化量较大，表示终端设备的移动距离较大，则TA无效。本申请实施例可以将RSRP的变化量与RSRP变化量阈值进行比较，以确定TA是否有效。如果终端设备测量的RSRP的变化量未超过RSRP变化量阈值，则终端设备可以确定TA有效。如果终端设备测量的RSRP的变化量超过RSRP变化量阈值，则终端设备可以确定TA无效。RSRP变化量阈值可以是网络设备预配置的，或者也可以是协议中预定义的。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. In this embodiment of the present application, 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. If the RSRP variation measured by the terminal device does not exceed the RSRP variation threshold, 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.
终端设备测量的RSRP的变化量可以指RSRP的增加量，也可以指RSRP的减小量。举例说明，将终端设备最后一次接收到跟踪区域码(tracking area code，TAC)或RRC释放消息时的下行RSRP的测量结果记为A。终端设备在判断TA是否有效(或是否触发SDT)时，可以对下行RSRP进行测量，其测量值记为B。上述RSRP变化量阈值可以包括第一RSRP变化量阈值和第二RSRP变化量阈值。如果B到A的增加量未超过第一RSRP变化量阈值，或，B到A的减小量未超过第二RSRP变化量阈值，则终端设备可以确定TA有效。其中，第一RSRP变化量阈值与第二RSRP变化量阈值可以相等，也可以不等，本申请实施例对此不做具体限定。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. For example, 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. When the terminal device judges whether the TA is valid (or whether the SDT is triggered), it can measure the downlink RSRP, and 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. 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. Wherein, 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.
在另一些实施例中，CG-SDT资源是否有效与终端设备所选载波上是否存在CG-SDT资源有关。如果所选载波上存在CG-SDT资源，则终端设备可以确定CG-SDT资源有效。如果所选载波上不存在CG-SDT资源，则终端设备可以确定CG-SDT资源无效。终端设备 所选载波例如可以为正常上行链路(normal uplink，NUL)载波或补充上行链路(supply uplink，SUL)载波。In some other embodiments, 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.
在另一些实施例中，CG-SDT资源是否有效与终端设备所选同步信号块(synchronization signal block，SSB)上是否存在CG-SDT资源有关。如果所选SSB上存在CG-SDT资源，则终端设备可以确定CG-SDT资源有效。如果所选SSB上不存在CG-SDT资源，则终端设备可以确定CG-SDT资源无效。In some other embodiments, 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.
通过上述方式可以判断CG-SDT资源是否有效。如果CG-SDT资源有效，则表示终端设备满足触发SDT的条件。如果CG-SDT资源无效，则终端设备可以进一步判断RA-SDT资源是否有效。如果RA-SDT资源有效，则表示终端设备满足触发SDT的条件。如果RA-SDT资源无效，则表示终端设备不满足触发SDT的条件。Whether the 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.
终端设备在进行SDT的过程中，会存在SDT失败的情况。如果SDT失败，则终端设备可以进入RRC-IDLE态。During the SDT process of the terminal device, the SDT may fail. If the SDT fails, the terminal device may enter the RRC-IDLE state.
SDT失败与以下事件中的至少一种有关：在SDT过程中发生了小区重选；SDT失败检测定时器(SDT failure detection timer)超时；无线链路控制(radio link control，RLC)达到最大传输次数。RLC达到最大传输次数即表示终端设备检测到RLC失败(RLC failure，RLF)。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 . When RLC reaches the maximum number of transmissions, it means that the terminal device detects RLC failure (RLC failure, RLF).
为了优化网络配置，降低布网成本和运营成本，出现了一种自组织网络(self-organizing network，SON)技术。SON具有自配置、自优化及自治愈等特性。自优化可以指网络设备根据网络的运行状况，自适应调整网络参数，优化网络的性能。In order to optimize network configuration and reduce network deployment and operation costs, a self-organizing network (SON) technology has emerged. SON has the characteristics of self-configuration, self-optimization and self-healing. Self-optimization can mean that network devices adaptively adjust network parameters according to network operating conditions to optimize network performance.
在SON架构中，终端设备可以记录各类事件的过程信息，并在接收到网络设备发送的指示上报的情况下，向网络设备上报记录的信息。终端设备记录的事件可以包括以下事件中的至少一种：测量事件、连接建立事件、随机接入事件、无线链路检测事件、移动性事件。In the SON architecture, 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.
图4示出的是一种终端设备上报事件信息的流程示意图。在步骤S420、网络设备向终端设备发送UE信息请求(UEInformationRequest)，该UEInformationRequest中包括网络设备需要终端设备上报的信息类型。Fig. 4 shows a schematic flow chart of a terminal device reporting event information. In step S420, 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例如可以包括以下中的至少一种：日志测量报告请求(logMeasReportReq)，连接建立失败报告请求(connEstFailReq)，随机接入报告请求(ra-ReportReq)，RLF报告请求(rlf-ReportReq)，移动历史报告请求(mobilityHistoryReportReq)。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).
UEInformationRequest可以表示为如下形式：UEInformationRequest can be expressed as follows:
Figure PCTCN2021137897-appb-000001
Figure PCTCN2021137897-appb-000001
上述每种请求信息都有对应的参数域。当某个信息的参数域设置为“true”时，表示终端设备需要上报该信息。当某个信息的参数域设置为“false”或为空时，表示终端设备不需要上报该信息。以上图所示的UEInformationRequest为例，logMeasReportReq、connEstFailReq、ra-ReportReq、rlf-ReportReq、mobilityHistoryReportReq的参数域均为true，则终端设备需要上报logMeasReport、connEstFail、ra-Report、rlf-Report、mobilityHistoryReport。Each of the above request information has a corresponding parameter field. When the parameter field of a certain information is set to "true", it means that the terminal device needs to report the information. When 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. Take the UEInformationRequest shown in the figure above as an example. If the parameter fields of logMeasReportReq, connEstFailReq, ra-ReportReq, rlf-ReportReq, and mobilityHistoryReportReq are all true, the terminal device needs to report logMeasReport, connEstFail, ra-Report, rlf-Report, and mobilityHistoryReport.
在步骤S430、终端设备接收到网络设备发送的UEInformationRequest后，可以根据网络设备的指示，即UEInformationRequest中各信息的参数域的值，向网络设备发送UE信息响应(UEInformationResponse)。UEInformationResponse中可以包括网络设备需要终端 设备上报的信息。In 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可以表示为如下形式：UEInformationResponse can be expressed as follows:
Figure PCTCN2021137897-appb-000002
Figure PCTCN2021137897-appb-000002
终端设备向网络设备发送的UEInformationResponse中包括LogMeasReport、ConnEstFail、Ra-Report、Rlf-Report、MobilityHistoryReport。The UEInformationResponse sent by the terminal device to the network device includes LogMeasReport, ConnEstFail, Ra-Report, Rlf-Report, and MobilityHistoryReport.
终端设备可以对上述各类信息进行记录，以在网络设备指示需要上报相关信息时，向网络设备发送相关信息。以ra-Report为例，终端设备可以在每次成功完成随机接入或随机接入失败后，将随机接入过程信息存储在终端设备维护的VarRA-Report列表中。当终端设备接收到网络设备指示的ra-ReportReq后，终端设备将记录的ra-Report上报给网络设备。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. Taking ra-Report as an example, 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.
网络设备向终端设备发送UEInformationRequest可以是网络设备主动发送的，或者也可以是网络设备在接收到终端设备发送的具有可用的记录信息后，再向终端设备发送的。如图4所示，图4所示的方法还可以包括步骤S410，终端设备向网络设备发送第一指示信息，该第一指示信息可用于指示有可用的记录信息。终端设备可以对各类事件的过程信息进行记录，并在事件的过程信息记录完成后，向网络设备发送第一指示信息。网络设备接收到终端设备发送的第一指示信息后，可以根据需要确定是否向终端设备发送UEInformationRequest。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. As shown in FIG. 4, 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. After receiving the first indication information sent by the terminal device, the network device may determine whether to send a UEInformationRequest to the terminal device as required.
网络设备接收到终端设备发送的UEInformationResponse后，可以根据UEInformationResponse中的报告信息，确定各类事件的参数配置是否合理。如果某类事件的参数配置不合理，则网络设备可以对这些参数进行优化。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.
上文描述的SDT是R17引入的新特性，在R17之前的SON框架不支持针对SDT的上报。但是，在SDT过程中，也会存在SDT相关参数配置不合理的现象。如何优化SDT过程的相关参数，目前还没有明确的方案。The SDT described above is a new feature introduced by R17, and the SON framework before R17 does not support the reporting of SDT. However, in the process of SDT, there will also be unreasonable configuration of SDT related parameters. How to optimize the relevant parameters of the SDT process, there is still no clear plan.
为了解决上述问题，下面结合图5，详细描述本申请实施例提供的技术方案。In order to solve the above problems, the technical solution provided by the embodiment of the present application will be described in detail below with reference to FIG. 5 .
图5是本申请实施例提供的无线通信的方法的示意性流程图。如图5所示，在步骤S510、终端设备向网络设备发送第一消息。在一些实施例中，该第一消息可以称为SDT报告消息。该第一消息中包括SDT的第一信息。或者，在一些实施例中，可以将第一信息称为SDT过程信息。Fig. 5 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application. As shown in FIG. 5, in step S510, the terminal device sends a first message to the network device. In some embodiments, this first message may be referred to as an SDT report message. The first message includes first information of the SDT. Alternatively, in some embodiments, the first information may be referred to as SDT process information.
在一些实施例中，在终端设备向网络设备发送第一消息之前，终端设备可以通知网络设备终端设备具有可用(available)的第一消息。In some embodiments, before the terminal device sends the first message to the network device, the terminal device may notify the network device that the terminal device has the first message available (available).
在一些实施例中，终端设备可以根据网络设备的指示确定是否发送该第一消息。例如，终端设备在SDT的过程中，可以对SDT的第一信息进行记录。终端设备可以在网络设备的指示下，向网络设备上报第一消息。以SON框架为例，网络设备可以向终端设备发送UEInformationRequest，该UEInformationRequest可以请求终端设备上报第一消息。当终端设备接收到SDT报告请求后，可以向网络设备发送第一消息。In some embodiments, 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.
本申请实施例的终端设备通过对SDT的第一信息进行记录，并向网络设备上报SDT的第一信息，可以辅助网络设备对SDT的参数和/或资源进行优化。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.
第一信息的记录可以是基于至少一个事件触发的。换句话说，在至少一个事件的触发下，终端设备对第一信息进行记录。该至少一个事件可以是与SDT失败相关的事件，也就是说，该至少一个事件可以为造成终端设备无法成功完成SDT的事件。The recording of the first information may be triggered based on at least one event. In other words, 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.
本申请实施例对至少一个事件不做具体限定。例如，至少一个事件与CG-SDT资源是否有效具有关联关系。在CG-SDT资源无效的情况下，终端设备对第一信息进行记录。又例如，至少一个事件与RA-SDT资源是否有效具有关联关系。在RA-SDT资源无效的情况下，终端设备对第一信息进行记录。再例如，该至少一个事件可以与SDT的TA有效性具有关联关系。在TA无效的情况下，或者，在终端设备检测到TA无效的情况下，终端设备对第一信息进行记录。The embodiment of the present application does not specifically limit at least one event. For example, 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. For another example, 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. For another example, 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.
TA是否有效的判断方式可以采用上文描述的方式进行判断。如上文的描述，TA是否有效与SDT的TA定时器是否超时，和/或，终端设备测量的RSRP的变化量是否超过RSRP变化量阈值具有关联关系。也就是说，至少一个事件与SDT的TA定时器是否超时，和/或，终端设备测量的RSRP的变化量是否超过RSRP变化量阈值具有关联关系。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.
在一些实施例中，至少一个事件与SDT的TA定时器是否超时具有关联关系。例如，在SDT的TA定时器超时的触发下，终端设备记录SDT的第一信息。SDT的TA定时器可以是终端设备进入RRC_INACTIVE态后开始启动的，或者SDT的TA定时器也可以是终端设备接收到RRC释放消息后启动的。SDT的TA定时器可以是网络设备通过RRC释放消息为终端设备配置的，或者SDT的TA定时器也可以是协议中预定义的。In some embodiments, at least one event is associated with whether the TA timer of the SDT expires. For example, when 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.
在另一些实施例中，至少一个事件与终端设备测量的RSRP的变化量是否超过RSRP变化量阈值具有关联关系。例如，终端设备可以对RSRP进行测量，并将两次测量的RSRP进行比较。如果两次测量的RSRP的变化量超过RSRP变化量阈值，则终端设备可以记录SDT的第一信息。两次测量的RSRP可以指连续两次测量的RSRP，或者，也可以指当前测量的RSRP与最后一次接收到TAC或RRC释放消息时测量的RSRP。终端设备测量的RSRP的变化量可以指RSRP的增加量，也可以指RSRP的减小量。In some other embodiments, the at least one event is associated with whether the variation of the RSRP measured by the terminal device exceeds the RSRP variation threshold. For example, 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.
举例说明，将终端设备最后一次接收到TAC或RRC释放消息时的下行RSRP的测量结果记为A，终端设备在判断TA是否有效(或是否触发SDT)时，可以对下行RSRP进行测量，其测量值记为B。上述RSRP变化量阈值可以包括第一RSRP变化量阈值和第二RSRP变化量阈值。如果B到A的增加量未超过第一RSRP变化量阈值，或，B到A的减小量未超过第二RSRP变化量阈值，则终端设备可以确定TA有效。其中，第一RSRP变化量阈值与第二RSRP变化量阈值可以相等，也可以不等，本申请实施例对此不做具体限定。For example, 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. Wherein, 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.
下面结合几个示例，对至少一个事件进行描述。应理解，不同示例中的事件之间可以相互组合。也就是说，终端设备可以在同时满足以下一个或多个事件的情况下，对SDT的第一信息进行记录。The following describes at least one event with reference to several examples. It should be understood that events in different examples can be combined with each other. That is to say, 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.
示例一example one
至少一个事件可以包括第一事件，第一事件可以指在SDT的TA定时器超时之后SDT被触发，即SDT-TAT expires after which SDT is trigger,e.g.,no longer than a configured time slot。终端设备可以根据前文描述的方式判断是否触发SDT。如果满足触发SDT的条件，终端设备可以发起SDT过程，并执行上下行数据的传输。但是，如果SDT被触发是在SDT的TA定时器超时之后，则由于SDT的TA定时器超时，终端设备无法成功完成SDT过程。如果出现该情况，则表示SDT的参数或资源配置不合理。因此，终端设备可以在第一事件的触发下，对SDT的第一信息进行记录。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.
在SDT的TA定时器超时之后SDT被触发，可以指在SDT的TA定时器超时之后的预设时间内SDT被触发，或者SDT的TA定时器超时的时刻与SDT被触发的时刻之间的时间间隔小于预设时间。该预设时间可以是一个较短的时间，即SDT的TA定时器超时之后很快触发了SDT。该预设时间可以是网络设备预配置的，也可以是协议中预定义的。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.
示例二Example two
至少一个事件可以包括第二事件，第二事件可以指SDT的TA定时器超时，且终端设备测量的RSRP的变化量未超过RSRP的变化量阈值。如SDT-TAT expires but RSRP change  is within the thres(For case both TAT and RSRP change threshold are configured for TA validation。TA定时器和RSRP的变化量都可用于确定TA是否有效。当终端设备测量的RSRP的变化量未超过RSRP的变化量阈值时，表示终端设备的移动性低，终端设备并没有进行大范围的移动。在该情况下，终端设备的TA有效。但是由于SDT的TA定时器超时，又指示终端设备的TA无效。如果出现该情况，则表示SDT的TA定时器与RSRP的变化量阈值不匹配。因此，终端设备可以在该第二事件的触发下，对SDT的第一信息进行记录。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. For example, 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. When the terminal device measures the RSRP When 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. But because the TA timer of SDT is overtime, and Indicates that the TA of the terminal device is invalid. If this happens, it means that the TA timer of the SDT does not match the change threshold of the RSRP. Therefore, the terminal device can record the first information of the SDT under the trigger of the second event .
示例三Example three
至少一个事件可以包括第三事件，第三事件可以指终端设备触发CG-SDT之后，SDT的TA定时器超时。如SDT-TAT expires after CG-SDT is triggered。触发CG-SDT可以包括触发进行CG-SDT资源是否有效的判断。在上文描述的方案中，触发SDT的条件包括是否存在有效的RA-SDT资源和/或CG-SDT资源。在判断是否存在有效的RA-SDT资源和/或CG-SDT资源时，终端设备可以先判断是否存在有效的CG-SDT资源，在不存在有效的CG-SDT资源的情况下，终端设备可以进一步判断是否存在有效的RA-SDT资源。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. Such as SDT-TAT expires after CG-SDT is triggered. Triggering the CG-SDT may include triggering a judgment on whether the CG-SDT resource is valid. In the solutions described above, the conditions for triggering SDT include whether there are valid RA-SDT resources and/or CG-SDT resources. When judging 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.
终端设备在触发CG-SDT之后，SDT的TA定时器超时，可以指终端设备在触发CG-SDT之后的预设时间内，SDT的TA定时器超时。该预设时间可以为一个较短的时间。例如，终端设备在触发CG-SDT之后，就立即发生SDT的TA定时器超时。如果终端设备在触发CG-SDT之后，SDT的TA定时器超时，则终端设备没有时间进行RA-SDT。如果出现该情况，则表示SDT的参数(如TA定时器)的配置不合理。因此，终端设备可以在该第三事件的触发下，记录SDT的第一信息。After the terminal device triggers the CG-SDT, 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.
示例四Example four
至少一个事件可以包括第***，第***可以指SDT的TA定时器超时，且终端设备检测到目标SSB满足触发CG-SDT的测量阈值。其中，目标SSB与CG资源关联(也就是说，目标SSB上配置了CG资源)。如SDT-TAT expires after which SDT is trigger,e.g.,There is qualified SSB。该第***可以指SDT的TA定时器超时，SDT被触发且终端设备检测到目标SSB满足触发CG-SDT的测量阈值。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. Wherein, the target SSB is associated with the CG resource (that is, the CG resource is configured on the target SSB). Such as 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.
终端设备在发送待传输数据之前，可以对SSB进行测量，并根据SSB的信号测量结果，选择测量结果满足预设值的目标SSB。进一步地，终端设备可以在目标SSB上发送待传输数据。SSB的信号测量结果可以包括RSRP的测量结果、参考信号接收质量(reference signal receiving quality，RSRQ)的测量结果和信号干扰噪声比(signal-to jamming and noise ratio，SINR)的测量结果中的至少一种。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.
如果目标SSB与CG资源关联，则终端设备可以使用该SSB进行SDT。但是，如果SDT的TA定时器超时，则终端设备将无法成功完成SDT过程。如果出现该情况，则表示SDT的参数(如TA定时器)或资源(如SSB资源或CG资源)配置不合理。因此，终端设备可以在第***的触发下，对SDT的第一信息进行记录。If the target SSB is associated with a CG resource, 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.
示例五Example five
至少一个事件包括第五事件，第五事件可以指SDT的TA定时器未超时，且终端设备测量的RSRP的变化量超过RSRP变化量阈值。如SDT-TAT is running but RSRP change is larger than the thres。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. For example, SDT-TAT is running but RSRP change is larger than the thres.
TA定时器和RSRP的变化量都可用于确定TA是否有效。当终端设备测量的RSRP的变化量超过RSRP的变化量阈值时，表示终端设备的移动性高，终端设备进行了大范围的移动。在该情况下，终端设备的TA无效。但是，从SDT的TA定时器的角度判断，由于SDT的TA定时器未超时，又指示终端设备的TA有效。也就是说，TA定时器与RSRP的变化量阈值不匹配。虽然SDT的TA定时器未超时，但终端设备不能成功完成SDT过程。如果出现该情况，则表示SDT的参数(如TA定时器或RSRP的变化量阈值)配置不合理。因此，终端设备可以在第五事件的触发下，对SDT的第一信息进行记录。Both the TA timer and the variation of RSRP can be used to determine whether the TA is valid. When 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. However, judging from the perspective of the TA timer of the SDT, since the TA timer of the SDT has not expired, it indicates that the TA of the terminal device is valid. That is, the TA timer does not match the RSRP change threshold. Although the TA timer of the SDT has not expired, 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.
上文详细描述了触发终端设备对第一信息进行记录的事件，下面对第一信息的内容进行描述。The event that triggers the terminal device to record the first information has been described in detail above, and the content of the first information will be described below.
本申请实施例对第一信息的具体内容不作具体限定。例如，第一信息与TA定时器有关。又例如，第一信息与RSRP的测量相关。终端设备上报SDT的第一信息，可以辅助网络设备优化TA定时器的时长，以及用于保障TA有效性的RSRP变化量阈值。下面对第一信息的具体内容进行详细描述。可以理解的是，下文描述的第一信息的内容相互组合。The embodiment of the present application does not specifically limit the specific content of the first information. For example, the first information is related to the TA timer. For another example, 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.
第一信息可以包括TA定时器的时长(如SDT-TAT value)。在TA定时器的时长配置不合理的情况下，终端设备可以将TA定时器的时长上报给网络设备，以使网络设备对SDT的配置参数(如TA定时器的时长)进行优化。例如，终端设备可以在上述第一事件、第二事件、第三事件、第***、第五事件中的至少一个事件的触发下，向网络设备上报TA定时器的时长。网络设备可以根据TA定时器的时长，对SDT的参数(如TA定时器的时长)进行优化。The first information may include the duration of the TA timer (such as SDT-TAT value). When the duration configuration of the TA timer is unreasonable, 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). For example, 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.
第一信息可以包括SDT关联的信号测量信息。SDT关联的信号例如可以包括SSB和/或PRS。在上述事件四中，终端设备可以对SSB进行测量，确定目标SSB。在上述事件二和事件五中，终端设备可以对PRS进行测量，以确定RSRP的变化量是否超过RSRP变化量阈值。信号的测量信息例如可以包括以下中的至少一种：RSRP、RSRQ、SINR。例如，终端设备可以对SSB的RSRP进行测量。又例如，终端设备可以对PRS的RSRQ进行测量。在一些实现方式中，终端设备可以在上述事件二、事件四和事件五中的至少一个的触发下，向网络设备上报SDT关联的信号测量信息。网络设备可以根据SDT关联的信号测量信息，对SDT的参数(如RSRP变化量阈值)进行优化。The first information may include SDT-associated signal measurement information. SDT-associated signals may include SSB and/or PRS, for example. In the above event four, the terminal device may measure the SSB to determine the target SSB. In the above event 2 and event 5, 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. For example, the terminal device can measure the RSRP of the SSB. For another example, the terminal device may measure the RSRQ of the PRS. In some implementation manners, 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.
第一信息可以包括RRC释放消息的发送或接收时间。终端设备可以在接收到RRC释放消息后，启动TA定时器。因此，网络设备发送RRC释放消息的时间或终端设备接收RRC释放消息的时间，与TA定时器超时具有关联关系。在TA定时器设置不合理的情况下，例如，在上述第一事件、第二事件、第三事件、第***、第五事件中的至少一个事件的触发下，终端设备可以将RRC释放消息的发送或接收时间上报给网络设备，以使网络设备对SDT的参数(如RRC释放消息的发送或接收时间)进行优化。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. When the TA timer setting is unreasonable, for example, triggered by at least one of the above-mentioned first event, second event, third event, fourth event, and fifth event, 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).
第一信息可以包括终端设备进入非激活态的时间。终端设备可以在进入非激活态后启动TA定时器。因此，终端设备进入非激活态的时间与TA定时器超时具有关联关系。在TA定时器设置不合理的情况下，例如，在上述第一事件、第二事件、第三事件、第***、第五事件中的至少一个事件的触发下，终端设备可以将进入非激活态的时间上报给网络设备，以使网络设备对SDT的配置参数(如终端设备进入非激活态的时间)进行优化。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. When the TA timer setting is unreasonable, for example, triggered by at least one of the above-mentioned first event, second event, third event, fourth event, and fifth event, 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).
第一信息可以包括SDT的触发时间。以上文描述的事件一为例，在SDT的TA定时器超时之后SDT被触发。造成事件一不合理的因素可能是SDT被触发的时间不合理。因此，终端设备可以在第一事件的触发下，将SDT的触发时间上报给网络设备，以使网络设备对SDT的参数进行优化。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.
第一信息可以包括SDT的触发时间和RRC释放消息之间的时间间隔。如Time duration between the reception of RRC release and trigger of SDT。以上文描述的事件一为例，在SDT的TA定时器超时之后SDT被触发。造成事件一不合理的因素可能是SDT的触发时间与TA定时器不匹配造成的。TA定时器是否超时与RRC释放消息的发送或接收时间有关，即事件一的触发与SDT的触发时间和RRC释放消息之间的时间间隔有关。因此，终端设备可以将SDT的触发时间和RRC释放消息之间的时间间隔上报给网络设备，以使网络设备对SDT的参数(如RRC释放消息的发送或接收时间)进行优化。The first information may include the trigger time of SDT and the time interval between RRC release messages. Such as 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).
第一信息可以包括SDT的触发时间与终端设备进入非激活态之间的时间间隔。仍以上文描述的事件一为例，在SDT的TA定时器超时之后SDT被触发。造成事件一不合理的因素可能是SDT的触发时间与TA定时器不匹配造成的。TA定时器是否超时与终端设备进入非激活态的时间有关，即事件一的触发与SDT的触发时间和终端设备进入非激活 态之间的时间间隔有关。因此，终端设备可以将SDT的触发时间和终端设备进入非激活态之间的时间间隔上报给网络设备，以使网络设备对SDT的参数(如终端设备进入非激活态的时间)进行优化。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).
第一信息可以包括RSRP变化量阈值。以上文描述的事件二和事件五为例，事件二和事件五的触发与RSRP变化量阈值有关，即RSRP变化量阈值设置不合理，会导致事件二和事件五的发生。因此，终端设备可以将RSRP的变化量阈值上报给网络设备，以使网络设备对SDT的参数(如RSRP的变化量阈值)进行优化。The first information may include an RSRP variation threshold. Taking Event 2 and Event 5 described above as an example, 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).
上文结合图1至图5，详细描述了本申请的方法实施例，下面结合图6至图8，详细描述本申请的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，未详细描述的部分可以参见前面方法实施例。The method embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 5 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 6 to FIG. 8 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.
图6是本申请一个实施例提供的终端设备的示意性结构图。图6所示的终端设备可以为上文描述的任意一种终端设备。所述终端设备600包括发送单元610。发送单元610可用于向网络设备发送第一消息，所述第一消息包括SDT的第一信息。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.
可选地，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的TA有效性具有关联关系。Optionally, 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.
可选地，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的RSRP的变化量是否超过RSRP变化量阈值具有关联关系。Optionally, 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.
可选地，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：在所述SDT的TA定时器超时之后所述SDT被触发；所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；所述终端设备触发CG-SDT之后，所述SDT的TA定时器超时；所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的测量阈值，其中，所述目标SSB与CG资源关联；或者，所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。Optionally, 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.
可选地，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。Optionally, 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.
可选地，所述第一信息包括以下信息中的一种或多种：所述SDT的TA定时器的时长；所述SDT关联的信号测量信息；RRC释放消息的发送或接收时间；所述终端设备进入非激活态的时间；所述SDT的触发时间；所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者，所述RSRP变化量阈值。Optionally, 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.
图7是本申请一个实施例提供的网络设备的示意性结构图。图7所示的网络设备可以为上文描述的任意一种网络设备。所述网络设备700包括接收单元710。接收单元710可用于接收终端设备发送的第一消息，所述第一消息包括SDT的第一信息。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.
可选地，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的TA有效性具有关联关系。Optionally, 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.
可选地，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的RSRP的变化量是否超过RSRP变化量阈值具有关联关系。Optionally, 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.
可选地，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：在所述SDT的TA定时器超时之后所述SDT被触发；所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；所述终端设备触发CG-SDT之后，所述SDT的TA定时器超时；所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的测量阈值，其中，所述目标SSB与CG资源关联；或者，所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。Optionally, 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.
可选地，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT 的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。Optionally, 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.
可选地，所述第一信息包括以下信息中的一种或多种：所述SDT的TA定时器的时长；所述SDT关联的信号测量信息；RRC释放消息的发送或接收时间；所述终端设备进入非激活态的时间；所述SDT的触发时间；所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者，所述RSRP变化量阈值。Optionally, 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.
图8是本申请实施例的装置的示意性结构图。图8中的虚线表示该单元或模块为可选的。该装置800可用于实现上述方法实施例中描述的方法。装置800可以是芯片、终端设备或网络设备。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.
装置800可以包括一个或多个处理器810。该处理器810可支持装置800实现前文方法实施例所描述的方法。该处理器810可以是通用处理器或者专用处理器。例如，该处理器可以为中央处理单元(central processing unit，CPU)。或者，该处理器还可以是其他通用处理器、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、分立硬件组件等。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。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. For example, the processor may be a central processing unit (central processing unit, CPU). Alternatively, 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.
装置800还可以包括一个或多个存储器820。存储器820上存储有程序，该程序可以被处理器810执行，使得处理器810执行前文方法实施例所描述的方法。存储器820可以独立于处理器810也可以集成在处理器810中。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 .
装置800还可以包括收发器830。处理器810可以通过收发器830与其他设备或芯片进行通信。例如，处理器810可以通过收发器830与其他设备或芯片进行数据收发。The apparatus 800 may also include a transceiver 830 . The processor 810 can communicate with other devices or chips through the transceiver 830 . For example, the processor 810 may send and receive data with other devices or chips through the transceiver 830 .
本申请实施例还提供一种计算机可读存储介质，用于存储程序。该计算机可读存储介质可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。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.
本申请实施例还提供一种计算机程序产品。该计算机程序产品包括程序。该计算机程序产品可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。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.
本申请实施例还提供一种计算机程序。该计算机程序可应用于本申请实施例提供的终端或网络设备中，并且该计算机程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。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.
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。It should be understood that in this embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that 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.
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that, in various embodiments of the present application, the 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.
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的 部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components 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.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够读取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital video disc，DVD))或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. 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.
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以所述权利要求的保护范围为准。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (36)

  1. 一种无线通信的方法，其特征在于，包括：A method for wireless communication, comprising:
    终端设备向网络设备发送第一消息，所述第一消息包括小数据传输SDT的第一信息。The terminal device sends a first message to the network device, where the first message includes first information of the small data transmission SDT.
  2. 根据权利要求1所述的方法，其特征在于，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的时间提前量TA有效性具有关联关系。The method according to claim 1, wherein the recording of the first information is triggered based on at least one event, and the at least one event is associated with the validity of the timing advance TA of the SDT.
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的参考信号接收功率RSRP的变化量是否超过RSRP变化量阈值具有关联关系。The method according to claim 2, characterized in that whether the TA timer of the at least one event and the SDT expires, and/or whether the variation of the reference signal received power (RSRP) measured by the terminal device exceeds the RSRP The variation thresholds are associated.
  4. 根据权利要求1所述的方法，其特征在于，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：The method according to claim 1, wherein 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:
    在所述SDT的TA定时器超时之后所述SDT被触发；The SDT is triggered after the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；The TA timer of the SDT expires, and the RSRP variation measured by the terminal device does not exceed the RSRP variation threshold;
    所述终端设备触发配置授权CG-SDT之后，所述SDT的TA定时器超时；After the terminal device triggers the configuration authorization CG-SDT, the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的测量阈值，其中，所述目标同步信号块SSB与CG资源关联；或者，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 synchronization signal block SSB is associated with a CG resource; or,
    所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。The TA timer of the SDT has not expired, and the RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  5. 根据权利要求4所述的方法，其特征在于，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。The method according to claim 4, wherein the triggering of the SDT after the TA timer of the SDT expires comprises: triggering the SDT after the TA timer of the SDT expires, and The time interval between the triggering time of the SDT and the timeout of the TA timer of the SDT does not exceed a first threshold.
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，所述第一信息包括以下信息中的一种或多种：The method according to any one of claims 1-5, wherein the first information includes one or more of the following information:
    所述SDT的TA定时器的时长；The duration of the TA timer of the SDT;
    所述SDT关联的信号测量信息；Signal measurement information associated with the SDT;
    无线资源控制RRC释放消息的发送或接收时间；The sending or receiving time of the radio resource control RRC release message;
    所述终端设备进入非激活态的时间；The time when the terminal device enters the inactive state;
    所述SDT的触发时间；The trigger time of the SDT;
    所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者The time interval between the trigger time of the SDT and the RRC release message; or
    所述RSRP变化量阈值。The RSRP variation threshold.
  7. 一种无线通信的方法，其特征在于，包括：A method for wireless communication, comprising:
    网络设备接收终端设备发送的第一消息，所述第一消息包括小数据传输SDT的第一信息。The network device receives the first message sent by the terminal device, where the first message includes first information of the small data transmission SDT.
  8. 根据权利要求7所述的方法，其特征在于，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的时间提前量TA有效性具有关联关系。The method according to claim 7, wherein the recording of the first information is triggered based on at least one event, and the at least one event is associated with the validity of the timing advance TA of the SDT.
  9. 根据权利要求8所述的方法，其特征在于，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的参考信号接收功率RSRP的变化量是否超过RSRP变化量阈值具有关联关系。The method according to claim 8, characterized in that whether the TA timer of the at least one event and the SDT expires, and/or whether the variation of the reference signal received power (RSRP) measured by the terminal device exceeds the RSRP The variation thresholds are associated.
  10. 根据权利要求7所述的方法，其特征在于，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：The method according to claim 7, wherein 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:
    在所述SDT的TA定时器超时之后所述SDT被触发；The SDT is triggered after the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；The TA timer of the SDT expires, and the RSRP variation measured by the terminal device does not exceed the RSRP variation threshold;
    所述终端设备触发配置授权CG-SDT之后，所述SDT的TA定时器超时；After the terminal device triggers the configuration authorization CG-SDT, the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的 测量阈值，其中，所述目标同步信号块SSB与CG资源关联；或者，The TA timer of the SDT expires, and the terminal device detects that the target SSB meets the measurement threshold triggering the CG-SDT, wherein the target synchronization signal block SSB is associated with a CG resource; or,
    所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。The TA timer of the SDT has not expired, and the RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  11. 根据权利要求10所述的方法，其特征在于，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。The method according to claim 10, wherein the triggering of the SDT after the TA timer of the SDT expires comprises: triggering the SDT after the TA timer of the SDT expires, and The time interval between the triggering time of the SDT and the timeout of the TA timer of the SDT does not exceed a first threshold.
  12. 根据权利要求7-11中任一项所述的方法，其特征在于，所述第一信息包括以下信息中的一种或多种：The method according to any one of claims 7-11, wherein the first information includes one or more of the following information:
    所述SDT的TA定时器的时长；The duration of the TA timer of the SDT;
    所述SDT关联的信号测量信息；Signal measurement information associated with the SDT;
    无线资源控制RRC释放消息的发送或接收时间；The sending or receiving time of the radio resource control RRC release message;
    所述终端设备进入非激活态的时间；The time when the terminal device enters the inactive state;
    所述SDT的触发时间；The trigger time of the SDT;
    所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者The time interval between the trigger time of the SDT and the RRC release message; or
    所述RSRP变化量阈值。The RSRP variation threshold.
  13. 一种终端设备，其特征在于，包括：A terminal device, characterized in that it includes:
    发送单元，用于向网络设备发送第一消息，所述第一消息包括小数据传输SDT的第一信息。A sending unit, configured to send a first message to the network device, where the first message includes first information of the small data transmission SDT.
  14. 根据权利要求13所述的终端设备，其特征在于，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的时间提前量TA有效性具有关联关系。The terminal device according to claim 13, wherein the recording of the first information is triggered based on at least one event, and the at least one event is associated with the validity of the timing advance amount TA of the SDT.
  15. 根据权利要求14所述的终端设备，其特征在于，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的参考信号接收功率RSRP的变化量是否超过RSRP变化量阈值具有关联关系。The terminal device according to claim 14, wherein whether the at least one event and the TA timer of the SDT expire, and/or whether the variation of the reference signal received power (RSRP) measured by the terminal device exceeds The RSRP variation thresholds are associated.
  16. 根据权利要求13所述的终端设备，其特征在于，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：The terminal device according to claim 13, wherein 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:
    在所述SDT的TA定时器超时之后所述SDT被触发；The SDT is triggered after the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；The TA timer of the SDT expires, and the RSRP variation measured by the terminal device does not exceed the RSRP variation threshold;
    所述终端设备触发配置授权CG-SDT之后，所述SDT的TA定时器超时；After the terminal device triggers the configuration authorization CG-SDT, the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的测量阈值，其中，所述目标同步信号块SSB与CG资源关联；或者，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 synchronization signal block SSB is associated with a CG resource; or,
    所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。The TA timer of the SDT has not expired, and the RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  17. 根据权利要求16所述的终端设备，其特征在于，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。The terminal device according to claim 16, wherein the triggering of the SDT after the TA timer of the SDT expires comprises: triggering the SDT after the TA timer of the SDT expires, And the time interval between the triggering time of the SDT and the timeout of the TA timer of the SDT does not exceed the first threshold.
  18. 根据权利要求13-17中任一项所述的终端设备，其特征在于，所述第一信息包括以下信息中的一种或多种：The terminal device according to any one of claims 13-17, wherein the first information includes one or more of the following information:
    所述SDT的TA定时器的时长；The duration of the TA timer of the SDT;
    所述SDT关联的信号测量信息；Signal measurement information associated with the SDT;
    无线资源控制RRC释放消息的发送或接收时间；The sending or receiving time of the radio resource control RRC release message;
    所述终端设备进入非激活态的时间；The time when the terminal device enters the inactive state;
    所述SDT的触发时间；The trigger time of the SDT;
    所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者The time interval between the trigger time of the SDT and the RRC release message; or
    所述RSRP变化量阈值。The RSRP variation threshold.
  19. 一种网络设备，其特征在于，包括：A network device, characterized in that it includes:
    接收单元，用于接收终端设备发送的第一消息，所述第一消息包括小数据传输SDT的第一信息。The receiving unit is configured to receive a first message sent by the terminal device, where the first message includes first information of the small data transmission SDT.
  20. 根据权利要求19所述的网络设备，其特征在于，所述第一信息的记录是基于至少一个事件触发的，且所述至少一个事件与所述SDT的时间提前量TA有效性具有关联关系。The network device according to claim 19, wherein the recording of the first information is triggered based on at least one event, and the at least one event is associated with the validity of the timing advance TA of the SDT.
  21. 根据权利要求20所述的网络设备，其特征在于，所述至少一个事件与所述SDT的TA定时器是否超时，和/或，所述终端设备测量的参考信号接收功率RSRP的变化量是否超过RSRP变化量阈值具有关联关系。The network device according to claim 20, characterized in that whether the at least one event and the TA timer of the SDT expire, and/or whether the variation of the reference signal received power (RSRP) measured by the terminal device exceeds The RSRP variation thresholds are associated.
  22. 根据权利要求19所述的网络设备，其特征在于，所述第一信息的记录是基于至少一个事件触发的，所述至少一个事件包括以下事件中的一种或多种：The network device according to claim 19, wherein 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:
    在所述SDT的TA定时器超时之后所述SDT被触发；The SDT is triggered after the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备测量的RSRP的变化量未超过所述RSRP变化量阈值；The TA timer of the SDT expires, and the RSRP variation measured by the terminal device does not exceed the RSRP variation threshold;
    所述终端设备触发配置授权CG-SDT之后，所述SDT的TA定时器超时；After the terminal device triggers the configuration authorization CG-SDT, the TA timer of the SDT expires;
    所述SDT的TA定时器超时，且所述终端设备检测到目标SSB满足触发CG-SDT的测量阈值，其中，所述目标同步信号块SSB与CG资源关联；或者，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 synchronization signal block SSB is associated with a CG resource; or,
    所述SDT的TA定时器未超时，且所述终端设备测量的RSRP的变化量超过RSRP变化量阈值。The TA timer of the SDT has not expired, and the RSRP variation measured by the terminal device exceeds the RSRP variation threshold.
  23. 根据权利要求22所述的网络设备，其特征在于，所述在所述SDT的TA定时器超时之后所述SDT被触发，包括：所述SDT的TA定时器超时之后，所述SDT被触发，且所述SDT的触发时间与所述SDT的TA定时器超时之间的时间间隔不超过第一阈值。The network device according to claim 22, wherein the triggering of the SDT after the TA timer of the SDT expires comprises: triggering the SDT after the TA timer of the SDT expires, And the time interval between the triggering time of the SDT and the timeout of the TA timer of the SDT does not exceed the first threshold.
  24. 根据权利要求19-23中任一项所述的网络设备，其特征在于，所述第一信息包括以下信息中的一种或多种：The network device according to any one of claims 19-23, wherein the first information includes one or more of the following information:
    所述SDT的TA定时器的时长；The duration of the TA timer of the SDT;
    所述SDT关联的信号测量信息；Signal measurement information associated with the SDT;
    无线资源控制RRC释放消息的发送或接收时间；The sending or receiving time of the radio resource control RRC release message;
    所述终端设备进入非激活态的时间；The time when the terminal device enters the inactive state;
    所述SDT的触发时间；The trigger time of the SDT;
    所述SDT的触发时间和所述RRC释放消息之间的时间间隔；或者The time interval between the trigger time of the SDT and the RRC release message; or
    所述RSRP变化量阈值。The RSRP variation threshold.
  25. 一种终端设备，其特征在于，包括存储器、处理器和通信接口，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，使得所述终端设备执行如权利要求1-6中任一项所述的方法。A terminal device, characterized in that it includes a memory, a processor, and a communication interface, the memory is used to store programs, and the processor is used to call the programs in the memory, so that the terminal device executes claims 1- The method described in any one of 6.
  26. 一种网络设备，其特征在于，包括存储器、处理器和通信接口，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，使得所述网络设备执行如权利要求7-12中任一项所述的方法。A network device, characterized in that it includes a memory, a processor and a communication interface, the memory is used to store a program, and the processor is used to call the program in the memory, so that the network device performs as claimed in claim 7- The method described in any one of 12.
  27. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以执行如权利要求1-6中任一项所述的方法。An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 1-6.
  28. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以执行如权利要求7-12中任一项所述的方法。An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 7-12.
  29. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求1-6中任一项所述的方法。A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1-6.
  30. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求7-12中任一项所述的方法。A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device equipped with the chip executes the method according to any one of claims 7-12.
  31. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机 执行如权利要求1-6中任一项所述的方法。A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-6.
  32. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求7-12中任一项所述的方法。A computer-readable storage medium, which is characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 7-12.
  33. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求1-6中任一项所述的方法。A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 1-6.
  34. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求7-12中任一项所述的方法。A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 7-12.
  35. 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1-6中任一项所述的方法。A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-6.
  36. 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7-12中任一项所述的方法。A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 7-12.
PCT/CN2021/137897 2021-12-14 2021-12-14 Wireless communication method, terminal device, and network device WO2023108416A1 (en)

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