WO2022165720A1 - Procédé et appareil pour améliorer la fiabilité d'un service mbs, dispositif de terminal et dispositif de réseau - Google Patents

Procédé et appareil pour améliorer la fiabilité d'un service mbs, dispositif de terminal et dispositif de réseau Download PDF

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Publication number
WO2022165720A1
WO2022165720A1 PCT/CN2021/075313 CN2021075313W WO2022165720A1 WO 2022165720 A1 WO2022165720 A1 WO 2022165720A1 CN 2021075313 W CN2021075313 W CN 2021075313W WO 2022165720 A1 WO2022165720 A1 WO 2022165720A1
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WIPO (PCT)
Prior art keywords
transmission mode
terminal device
mbs service
network device
information
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PCT/CN2021/075313
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English (en)
Chinese (zh)
Inventor
王淑坤
石聪
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180077543.1A priority Critical patent/CN116458177A/zh
Priority to PCT/CN2021/075313 priority patent/WO2022165720A1/fr
Publication of WO2022165720A1 publication Critical patent/WO2022165720A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a method and apparatus, terminal equipment, and network equipment for improving the reliability of a multicast broadcast service (Multicast Broadcast Service, MBS).
  • MBS Multicast Broadcast Service
  • the terminal device receives the MBS service of multicast type in the radio resource control (Radio Resource Control, RRC) connection state.
  • the network side can send the MBS service data to the terminal device in a point-to-multipoint (PTM) mode or a point-to-point (PTP) mode.
  • PTM point-to-multipoint
  • PTP point-to-point
  • the terminal device can also receive the MSB service in the PTM mode or the PTP mode. data.
  • the embodiments of the present application provide a method and apparatus, terminal equipment, and network equipment for improving the reliability of an MBS service.
  • the terminal device sends the first information to the network device when the first condition is satisfied, and/or sends the second information to the network device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP) status report.
  • Packet Data Convergence Protocol Packet Data Convergence Protocol, PDCP
  • the network device receives the first information sent by the terminal device when the first condition is satisfied, and/or receives the second information sent by the terminal device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a PDCP status report.
  • the apparatus for improving the reliability of the MBS service provided by the embodiment of the present application is applied to terminal equipment, and the apparatus includes:
  • a determining unit for determining whether the first condition and/or the second condition is satisfied
  • a sending unit configured to send the first information to the network device when the first condition is satisfied, and/or send the second information to the network device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a PDCP status report.
  • the apparatus for improving the reliability of the MBS service provided by the embodiment of the present application is applied to network equipment, and the apparatus includes:
  • a receiving unit configured to receive the first information sent by the terminal device when the first condition is satisfied, and/or receive the second information sent by the terminal device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a PDCP status report.
  • the terminal device provided by the embodiments of the present application includes a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the above-mentioned method for improving the reliability of the MBS service.
  • the network device provided by the embodiments of the present application includes a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the above-mentioned method for improving the reliability of the MBS service.
  • the chip provided by the embodiment of the present application is used to implement the above-mentioned method for improving the reliability of the MBS service.
  • the chip includes: a processor for invoking and running a computer program from the memory, so that the device installed with the chip executes the above-mentioned method for improving the reliability of the MBS service.
  • the computer-readable storage medium provided by the embodiment of the present application is used for storing a computer program, and the computer program enables a computer to execute the above-mentioned method for improving the reliability of an MBS service.
  • the computer program product provided by the embodiments of the present application includes computer program instructions, and the computer program instructions enable a computer to execute the above-mentioned method for improving MBS service reliability.
  • the computer program provided by the embodiment of the present application when it runs on the computer, enables the computer to execute the above-mentioned method for improving the reliability of the MBS service.
  • the terminal device sends first information to the network device when the first condition is satisfied, and triggers the network device to perform switching between the first transmission mode and the second transmission mode through the first information;
  • the terminal device sends a PDCP status report to the network device when the second condition is satisfied, so as to ensure the reliability of MBS service reception to the greatest extent.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for improving MBS service reliability provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of the transmission of MBS services provided by an embodiment of the present application according to a PTM manner and a PTP manner;
  • FIG. 4 is a schematic structural diagram 1 of a structure of an apparatus for improving MBS service reliability provided by an embodiment of the present application;
  • FIG. 5 is a schematic diagram 2 of the structure and composition of an apparatus for improving MBS service reliability provided by an embodiment of the present application;
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication system provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • 5G communication systems or future communication systems etc.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area.
  • the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the
  • the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system.
  • the communication system 100 also includes at least one terminal 120 located within the coverage of the network device 110 .
  • Terminal includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections; and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or a device of another terminal configured to receive/transmit a communication signal; and/or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • WLAN Wireless Local Area Networks
  • digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter
  • IoT Internet of Things
  • a terminal arranged to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communications capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • a terminal may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks or terminals in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal (Device to Device, D2D) communication may be performed between the terminals 120 .
  • the 5G communication system or the 5G network may also be referred to as a new radio (New Radio, NR) system or an NR network.
  • New Radio NR
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminals. This embodiment of the present application This is not limited.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal 120 with a communication function, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here;
  • the device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • 5G 3rd Generation Partnership Project
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra-Reliable Low-Latency Communications
  • mMTC Massive Machine-Type Communications
  • eMBB still aims at users' access to multimedia content, services and data, and its demand is growing rapidly.
  • eMBB since eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., its capabilities and requirements are also quite different, so it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios.
  • Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety assurance, etc.
  • Typical features of mMTC include: high connection density, small data volume, latency-insensitive services, low cost and long service life of the module.
  • RRC_INACTIVE Radio Resource Control
  • RRC_INACTIVE Radio Resource Control
  • RRC_IDLE state (referred to as idle state): mobility is UE-based cell selection reselection, paging is initiated by the core network (Core Network, CN), and the paging area is configured by the CN. There is no UE context and no RRC connection on the base station side.
  • RRC_CONNECTED state (referred to as connected state): there is an RRC connection, and a UE context exists on the base station side and the UE side.
  • the network side knows that the location of the UE is at the specific cell level. Mobility is the mobility controlled by the network side. Unicast data can be transmitted between the UE and the base station.
  • RRC_INACTIVE state (referred to as inactive state): mobility is UE-based cell selection reselection, there is a connection between CN-NR, UE context exists on a certain base station, paging is triggered by RAN, based on The paging area of the RAN is managed by the RAN, and the network side knows the location of the UE based on the paging area level of the RAN.
  • MBMS Multimedia Broadcast Multicast Service
  • MBMS is a technology that transmits data from a data source to multiple terminal devices by sharing network resources. This technology can effectively utilize network resources while providing multimedia services, and realize the broadcast of multimedia services at higher rates (such as 256kbps). and multicast.
  • 3GPP clearly proposes to enhance the support capability for downlink high-speed MBMS services, and determines the design requirements for the physical layer and air interface.
  • eMBMS evolved MBMS
  • SFN Single Frequency Network
  • MBSFN Multimedia Broadcast Multicast Service Single Frequency Network
  • MBSFN uses a uniform frequency to send service data in all cells at the same time, but To ensure synchronization between cells. In this way, the overall signal-to-noise ratio distribution of the cell can be greatly improved, and the spectral efficiency will also be greatly improved accordingly.
  • eMBMS implements service broadcast and multicast based on IP multicast protocol.
  • MBMS has only a broadcast bearer mode and no multicast bearer mode.
  • the reception of the MBMS service is applicable to the terminal equipment in the idle state or the connected state.
  • SC-PTM Single Cell Point To Multiploint
  • SC-MCCH Single Cell Multicast Control Channel
  • SC-MTCH Single Cell Multicast Transport Channel
  • SC-MCCH and SC-MTCH are mapped to downlink shared channel (Downlink-Shared Channel, DL-SCH), further, DL-SCH is mapped to physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), wherein, SC - MCCH and SC-MTCH belong to logical channels, DL-SCH belongs to transport channels, and PDSCH belongs to physical channels.
  • SC-MCCH and SC-MTCH do not support hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) operations.
  • Hybrid Automatic Repeat reQuest Hybrid Automatic Repeat reQuest
  • MBMS introduces a new system information block (System Information Block, SIB) type, namely SIB20.
  • SIB System Information Block
  • the configuration information of the SC-MCCH includes the modification period of the SC-MCCH, the repetition period of the SC-MCCH, and information such as the radio frame and subframe in which the SC-MCCH is scheduled.
  • SFN represents the system frame number of the radio frame
  • mcch-RepetitionPeriod represents the repetition period of SC-MCCH
  • mcch-Offset represents SC-MCCH offset.
  • the SC-MCCH is scheduled through the Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • RNTI Radio Network Tempory Identity
  • SC-RNTI Single Cell RNTI
  • the fixed value of SC-RNTI is FFFC.
  • a new RNTI is introduced, that is, a single cell notification RNTI (Single Cell Notification RNTI, SC-N-RNTI) to identify the PDCCH (such as the notification PDCCH) used to indicate the change notification of the SC-MCCH, optionally, the SC
  • the fixed value of -N-RNTI is FFFB; further, one of the 8 bits (bits) of DCI 1C can be used to indicate the change notification.
  • the configuration information of the SC-PTM is based on the SC-MCCH configured by the SIB20, and then the SC-MCCH configures the SC-MTCH, and the SC-MTCH is used to transmit service data.
  • the SC-MCCH only transmits one message (ie, SCPTMConfiguration), which is used to configure the configuration information of the SC-PTM.
  • the configuration information of SC-PTM includes: Temporary Mobile Group Identity (TMGI), session identifier (session id), group RNTI (Group RNTI, G-RNTI), discontinuous reception (Discontinuous Reception, DRX) configuration information And the SC-PTM service information of neighboring cells, etc.
  • TMGI Temporary Mobile Group Identity
  • session id session identifier
  • group RNTI Group RNTI, G-RNTI
  • discontinuous reception discontinuous Reception
  • DRX discontinuous Reception
  • Downlink discontinuous reception of SC-PTM is controlled by the following parameters: onDurationTimerSCPTM, drx-InactivityTimerSCPTM, SC-MTCH-SchedulingCycle, and SC-MTCH-SchedulingOffset.
  • the downstream SC-PTM service is received only when the timer onDurationTimerSCPTM or drx-InactivityTimerSCPTM is running.
  • SC-PTM business continuity adopts the concept of MBMS business continuity based on SIB15, namely "SIB15+MBMSInterestIndication" mode.
  • SIB15 namely "SIB15+MBMSInterestIndication" mode.
  • the service continuity of terminal equipment in idle state is based on the concept of frequency priority.
  • the configuration of the SC-PTM is to configure the SC-MCCH based on the SIB20, and then configure the SC-MTCH based on the SC-MCCH, and the SC-MTCH is used to transmit service data.
  • MBMS services in the above solution include but are not limited to multicast services, multicast services, and MBS services.
  • MBS service the description of "MBS service” may also be replaced with "multicast service” or “multicast service” or "MBMS service”.
  • the MBS service of the multicast type refers to the MBS service transmitted in a multicast manner.
  • the broadcast-type MBS service refers to the MBS service transmitted in a broadcast manner.
  • the MBS service is sent to all terminal devices in a certain group.
  • the terminal device receives the multicast MBS service in the RRC connection state, and the terminal device can receive the multicast MBS service data in the PTM mode or the PTP mode.
  • the MBS service data in the PTM mode scrambles the corresponding scheduling information through the G-RNTI configured on the network side
  • the MBS service data in the PTP mode scrambles the corresponding scheduling information through the C-RNTI.
  • the reliability requirements of multicast MBS services are relatively high. Receiving MBS service data through PTP can realize Radio Link Control (RLC) Acknowledged Mode (AM), thus ensuring higher reliability requirements. High MBS service data transmission.
  • RLC Radio Link Control
  • AM Acknowledged Mode
  • High MBS service data transmission the following technical solutions of the embodiments of the present application are proposed.
  • the terminal device sends first information to the network device when the first condition is satisfied, and triggers the network device to perform switching between the first transmission mode and the second transmission mode through the first information
  • the terminal device sends a PDCP status report to the network device under the condition that the second condition is satisfied, so as to ensure the reliability of MBS service reception to the greatest extent.
  • FIG. 2 is a schematic flowchart of a method for improving MBS service reliability provided by an embodiment of the present application. As shown in FIG. 2 , the method for improving MBS service reliability includes the following steps:
  • Step 201 The terminal device sends the first information to the network device when the first condition is satisfied, and/or sends the second information to the network device when the second condition is satisfied; wherein the first information is used for all
  • the network device determines whether to perform switching between the first transmission mode and the second transmission mode; the first transmission mode refers to the mode of transmitting MBS service data according to the PTM mode, and the second transmission mode refers to the transmission mode of the PTP mode.
  • the mode of MBS service data; the second information includes PDCP status report.
  • the terminal device in order to enable the terminal device to receive MBS service data, the terminal device receives configuration information of the MBS service sent by the network device, where the configuration information of the MBS service includes at least one of the following: identification information of the MBS service, MBS service channel configuration information.
  • the terminal device can receive the MBS service data sent by the network device based on the configuration information of the MBS service.
  • the configuration information of the MBS service is configured through RRC dedicated signaling.
  • the identification information of the MBS service in the configuration information of the MBS service is used for the terminal device to determine which MBS service to receive.
  • the identification information of the MBS service may be TMGI, G-RNTI, or the like.
  • the channel configuration information of the MBS service in the configuration information of the MBS service is used for the terminal device to determine the channel information for receiving the MBS service.
  • the channel configuration information of the MBS service may include at least one of the following: configuration information of a control channel of the MBS service (eg, configuration information of an MCCH), a traffic channel of the MBS service (also referred to as a data channel or a transport channel) Configuration information (such as MTCH configuration information).
  • the MSB service is transmitted in a multicast manner, in other words, the MSB service is a multicast MBS service.
  • the base station can deliver the MSB service to all terminal devices in a group through an air interface.
  • the base station may deliver the MSB service to all terminal devices in a group in a PTP manner and/or a PTM manner.
  • a group includes terminal equipment 1, terminal equipment 2 and terminal equipment 3.
  • the base station can deliver the MBS service to terminal equipment 1 through PTP, deliver the MBS service to terminal equipment 2 through PTP, and deliver the MBS service through PTP to terminal equipment 2.
  • the service is delivered to the terminal device 3; alternatively, the base station can deliver the MBS service to the terminal device 1 through the PTP mode, and the MBS service can be delivered to the terminal device 2 and the terminal device 3 through the PTM mode;
  • the MBS service is delivered to terminal equipment 1, terminal equipment 2 and terminal equipment 3.
  • a shared GTP tunnel (Shared GTP tunnel) is used between the core network and the base station to transmit the MBS service, that is, whether it is the MBS service of the PTM mode or the MBS service of the PTP mode, this GTP tunnel is shared.
  • the base station delivers the MBS service data to UE1 and UE2 according to the PTM mode, and delivers the MBS service data to the UE3 according to the PTP mode.
  • the method used by the terminal device to receive the MBS service data may be implemented in the following manner:
  • Mode 1 The terminal device receives the MBS service data in the PTM mode by default, or receives the MBS service data in the PTP mode by default, or receives the MBS service data in the PTM mode and the PTP mode by default.
  • Mode 2 The terminal device receives the RRC dedicated signaling, and the RRC dedicated signaling is used to configure whether the terminal device receives the MBS service data in the PTP mode, the MBS service data in the PTP mode, or simultaneously in the PTM mode and the PTP mode. MBS business data.
  • the scheduling information of the MBS service data in the PTM mode is carried in the DCI scrambled by the G-RNTI
  • the scheduling information of the MBS service data in the PTP mode is carried in the DCI scrambled by the C-RNTI.
  • the terminal device can acquire scheduling information of MBS service data in PTM mode by receiving DCI scrambled by G-RNTI, and/or acquire scheduling information of MBS service data in PTP mode by receiving DCI scrambled by C-RNTI.
  • the scheduling information of the MBS service data is used to determine time-frequency resource information and the like for transmitting the MBS service data.
  • the network device may perform dynamic switching between the PTP mode and the PTM mode, so as to adjust the mode in which the terminal device receives the MBS service data.
  • the mode of transmitting MBS service data in the PTM mode is referred to as the first transmission mode
  • the mode of transmitting the MBS service data in the PTP mode is referred to as the second transmission mode.
  • the terminal device sends the first information to the network device when the first condition is satisfied, and/or sends the second information to the network device when the second condition is satisfied; correspondingly, the network device receives the terminal The first information sent by the device when the first condition is met, and/or the second information sent by the terminal device when the second condition is met.
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode; the second information includes a PDCP status report. The following situations are explained.
  • the network device sends MBS service data to the terminal device according to the first transmission mode, and correspondingly, the terminal device receives the network device according to the first transmission mode.
  • the transmitted MBS service data If the terminal device detects that the first condition is satisfied, the terminal device sends first information to the network device, where the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode.
  • the first condition includes at least one of the following:
  • the terminal device fails to receive one TB of data, the next new TB of data of the one TB of data is scheduled to be transmitted.
  • the multiple transmissions of the one TB data correspond to the same hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process identifier.
  • Hybrid Automatic Repeat reQuest Hybrid Automatic Repeat reQuest, HARQ
  • the first threshold is configured through RRC dedicated signaling.
  • the terminal device can determine that the next new TB data is scheduled for transmission in the following ways: the terminal device successfully receives the next new TB data, or the terminal device detects the scheduling information of the next new TB data.
  • the terminal device sends first information to the network device, where the first information includes at least one of the following:
  • Channel State Information Channel State Information (Channel State Information, CSI) report, where the CSI report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • CSI Channel State Information
  • the network device After receiving the first information sent by the terminal device, the network device switches the first transmission mode to the second transmission mode, that is, sends MBS service data to the terminal device according to the PTP mode.
  • the network device sends a first handover command to the terminal device, and accordingly, the terminal device receives the first handover command sent by the network device, and the first handover command is used for Instructing to switch the first transmission mode to the second transmission mode. In this way, the terminal device receives the MBS service data sent by the network device in the PTP manner.
  • the terminal device if the terminal device detects that the second condition is satisfied, the terminal device sends second information to the network device, where the second information is a PDCP status report.
  • the second condition is: the measurement result of the terminal device is lower than a second threshold. Based on this, the PDCP status report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • the measurement result includes a channel measurement result and/or a cell signal quality measurement result.
  • the second threshold is configured through RRC dedicated signaling.
  • the measurement quantity of the measurement result includes Reference Signal Received Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ).
  • the terminal device sends a PDCP status report to the network device when the above-mentioned second condition is satisfied.
  • the network device sends a first handover command to the terminal device, and accordingly, the terminal device receives the first handover command sent by the network device, where the first handover command is used for Instructing to switch the first transmission mode to the second transmission mode. In this way, the terminal device receives the MBS service data sent by the network device in the PTP manner.
  • the second condition includes at least one of the following:
  • the terminal device has received first indication information sent by the network device, where the first indication information is used to instruct the terminal device to receive MBS service data in a PTP manner;
  • the terminal device determines to receive the MBS service data in a PTP manner
  • the terminal device determines that the MBS service data is scheduled to be transmitted through the DCI scrambled by the C-RNTI.
  • the terminal device sends a PDCP status report to the network device when the above-mentioned second condition is satisfied.
  • the network device described in the above solution may be a base station, such as a gNB.
  • FIG. 4 is a schematic structural diagram 1 of an apparatus for improving MBS service reliability provided by an embodiment of the present application, which is applied to terminal equipment.
  • the apparatus for improving MBS service reliability includes:
  • a determining unit 401 configured to determine whether the first condition and/or the second condition are satisfied
  • a sending unit 402 configured to send the first information to the network device when the first condition is satisfied, and/or send the second information to the network device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a PDCP status report.
  • the apparatus further includes:
  • the receiving unit 403 is configured to receive the MBS service data transmitted by the network device according to the first transmission mode.
  • the first condition includes at least one of the following:
  • the number of times that the terminal device fails to receive a TB of data exceeds the first threshold
  • the terminal device fails to receive one TB of data, the next new TB of data of the one TB of data is scheduled to be transmitted.
  • the multiple transmissions of the one TB data correspond to the same HARQ process identifier.
  • the first threshold is configured through RRC dedicated signaling.
  • the first information includes at least one of the following:
  • a CSI report where the CSI report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • the second condition is: the measurement result of the terminal device is lower than a second threshold.
  • the PDCP status report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • the measurement result includes a channel measurement result and/or a cell signal quality measurement result.
  • the second threshold is configured through RRC dedicated signaling.
  • the second condition includes at least one of the following:
  • the terminal device has received first indication information sent by the network device, where the first indication information is used to instruct the terminal device to receive MBS service data in a PTP manner;
  • the terminal device determines to receive the MBS service data in a PTP manner
  • the terminal device determines that the MBS service data is scheduled to be transmitted through the DCI scrambled by the C-RNTI.
  • the apparatus further includes:
  • the receiving unit 403 is configured to receive a first switching command sent by the network device, where the first switching command is used to instruct to switch the first transmission mode to the second transmission mode.
  • the apparatus further includes:
  • the receiving unit 403 is configured to receive configuration information of the MBS service sent by the network device, where the configuration information of the MBS service includes at least one of the following: identification information of the MBS service and channel configuration information of the MBS service.
  • FIG. 5 is a schematic structural diagram 2 of an apparatus for improving MBS service reliability provided by an embodiment of the present application, which is applied to network equipment.
  • the apparatus for improving MBS service reliability includes:
  • a receiving unit 501 configured to receive first information sent by the terminal device when the first condition is satisfied, and/or receive second information sent by the terminal device when the second condition is satisfied;
  • the first information is used by the network device to determine whether to perform switching between the first transmission mode and the second transmission mode;
  • the first transmission mode refers to the mode of transmitting MBS service data in the PTM mode, and the The second transmission mode refers to the mode of transmitting MBS service data according to the PTP mode;
  • the second information includes a PDCP status report.
  • the apparatus further includes:
  • the sending unit 502 is configured to send MBS service data to the terminal device according to the first transmission mode.
  • the first condition includes at least one of the following:
  • the number of times that the terminal device fails to receive a TB of data exceeds the first threshold
  • the terminal device fails to receive one TB of data, the next new TB of data of the one TB of data is scheduled to be transmitted.
  • the multiple transmissions of the one TB data correspond to the same HARQ process identifier.
  • the first threshold is configured through RRC dedicated signaling.
  • the first information includes at least one of the following:
  • a CSI report where the CSI report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • the second condition is: the measurement result of the terminal device is lower than a second threshold.
  • the PDCP status report is used to trigger the network device to switch the first transmission mode to the second transmission mode.
  • the measurement result includes a channel measurement result and/or a cell signal quality measurement result.
  • the second threshold is configured through RRC dedicated signaling.
  • the second condition includes at least one of the following:
  • the terminal device has received first indication information sent by the network device, where the first indication information is used to instruct the terminal device to receive MBS service data in a PTP manner;
  • the terminal device determines to receive the MBS service data in a PTP manner
  • the terminal device determines that the MBS service data is scheduled to be transmitted through the DCI scrambled by the C-RNTI.
  • the apparatus further includes:
  • the sending unit 502 is configured to send a first switching command to the terminal device, where the first switching command is used to instruct to switch the first transmission mode to the second transmission mode.
  • the apparatus further includes:
  • the sending unit 502 is configured to send configuration information of the MBS service to the terminal device, where the configuration information of the MBS service includes at least one of the following: identification information of the MBS service and channel configuration information of the MBS service.
  • FIG. 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device may be a terminal device or a network device.
  • the communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the methods in the embodiments of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 600 may specifically be the network device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may further include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • FIG. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 800 includes a terminal device 810 and a network device 820 .
  • the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • the steps of the above method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program runs on the computer, the computer executes the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

La présente invention concerne un procédé et un appareil pour améliorer la fiabilité d'un service MBS, un dispositif de terminal et un dispositif de réseau. Le procédé comprend : lorsqu'une première condition est satisfaite, l'envoi, par un dispositif de terminal, de premières informations à un dispositif de réseau, et/ou lorsqu'une seconde condition est satisfaite, l'envoi, par le dispositif de terminal, de secondes informations au dispositif de réseau, les premières informations étant utilisées pour que le dispositif de réseau détermine s'il faut exécuter un transfert entre un premier mode de transmission et un second mode de transmission. Le premier mode de transmission se rapporte à un mode dans lequel des données MBS sont transmises d'une manière PTM, le second mode de transmission se rapportant à un mode dans lequel les données MBS sont transmises d'une manière PTP, et les secondes informations comprenant un rapport d'état PDCP (201).
PCT/CN2021/075313 2021-02-04 2021-02-04 Procédé et appareil pour améliorer la fiabilité d'un service mbs, dispositif de terminal et dispositif de réseau WO2022165720A1 (fr)

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CN202180077543.1A CN116458177A (zh) 2021-02-04 2021-02-04 提高mbs业务可靠性的方法及装置、终端设备、网络设备
PCT/CN2021/075313 WO2022165720A1 (fr) 2021-02-04 2021-02-04 Procédé et appareil pour améliorer la fiabilité d'un service mbs, dispositif de terminal et dispositif de réseau

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