WO2021051316A1 - Procédé et appareil de transmission de données de service, et dispositif de réseau et dispositif terminal - Google Patents

Procédé et appareil de transmission de données de service, et dispositif de réseau et dispositif terminal Download PDF

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Publication number
WO2021051316A1
WO2021051316A1 PCT/CN2019/106490 CN2019106490W WO2021051316A1 WO 2021051316 A1 WO2021051316 A1 WO 2021051316A1 CN 2019106490 W CN2019106490 W CN 2019106490W WO 2021051316 A1 WO2021051316 A1 WO 2021051316A1
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Prior art keywords
node
service data
mbms service
cell
mcch
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PCT/CN2019/106490
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English (en)
Chinese (zh)
Inventor
王淑坤
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Oppo广东移动通信有限公司
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Priority to CN201980095115.4A priority Critical patent/CN113711689A/zh
Priority to PCT/CN2019/106490 priority patent/WO2021051316A1/fr
Publication of WO2021051316A1 publication Critical patent/WO2021051316A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the embodiments of the present application relate to the field of mobile communication technology, and in particular to a method and device for transmitting service data, network equipment, and terminal equipment.
  • Multimedia Broadcast Multicast Service is a technology that transmits data from one data source to multiple users by sharing network resources. This technology can effectively use network resources while providing multimedia services to achieve better performance. Broadcast and multicast of high-rate (such as 256kbps) multimedia services.
  • NR New Radio
  • MBMS service in NR when the terminal equipment is at the edge of the cell before and after the cell change, and the signal quality at the edge of the cell is poor, it will cause the problem of failure to receive the MBMS service.
  • the MBMS service data of the two cells are not aligned.
  • the MBMS service data will be lost due to the update of the MBMS configuration information.
  • the embodiments of the present application provide a method and device for transmitting service data, network equipment, and terminal equipment.
  • the first node receives the MBMS service data sent by the core network
  • the first node sends the MBMS service data to at least one second node, and sends the MBMS service data through the first node and the at least one second node.
  • the terminal device receives MBMS service data sent by at least one cell, the at least one cell includes a cell corresponding to the first node and/or at least one second node, and the MBMS service data sent by the at least one cell comes from the same MBMS service data.
  • the receiving unit is used to receive MBMS service data sent by the core network
  • the sending unit is configured to send the MBMS service data to at least one second node, and send the MBMS service data through the first node and the at least one second node.
  • the receiving unit is configured to receive MBMS service data sent by at least one cell, where the at least one cell includes a cell corresponding to the first node and/or at least one second node, and the MBMS service data sent by the at least one cell comes from the same MBMS Business data.
  • the network device provided by the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the foregoing business data transmission method.
  • the terminal device provided in the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the foregoing business data transmission method.
  • the chip provided in the embodiment of the present application is used to implement the foregoing service data transmission method.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned service data transmission method.
  • the computer-readable storage medium provided by the embodiment of the present application is used to store a computer program, and the computer program enables a computer to execute the above-mentioned service data transmission method.
  • the computer program product provided by the embodiment of the present application includes computer program instructions that cause a computer to execute the above-mentioned service data transmission method.
  • the computer program provided in the embodiment of the present application when it runs on a computer, causes the computer to execute the above-mentioned service data transmission method.
  • the NR system supports the broadcast and multicast of MBMS services.
  • a multiple RAT-Multiple Connectivity (MR-MC) architecture is proposed, through multiple nodes
  • MR-MC Multiple RAT-Multiple Connectivity
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a first SIB related configuration provided by an embodiment of the present application
  • Fig. 3 is a schematic diagram of a PTM configuration transmission mechanism provided by an embodiment of the present application.
  • Fig. 4 is a PTM channel and its mapping diagram provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a service data transmission method provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of a multi-connection architecture provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram 1 of the structural composition of a service data transmission device provided by an embodiment of the application.
  • FIG. 8 is a second schematic diagram of the structural composition of the service data transmission device provided by the embodiment of the application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application.
  • FIG. 11 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 system 5G communication system or future communication system.
  • the communication system 100 applied in the embodiment of this application is shown in FIG. 1.
  • 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 called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals located in 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 network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle 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, etc.
  • the communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110.
  • the "terminal” used here includes, but is not limited to, connection via a wired line, such as via a public switched telephone network (PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another terminal's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN public switched telephone network
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • a terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal can refer to access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user Device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with 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 the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminals 120.
  • the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • 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 There is no restriction on this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal 120 with communication functions, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here; communication
  • the device may also 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 the embodiment of the present application.
  • 5G Enhanced Mobile Broadband
  • URLLC Ultra-Reliable Low-Latency Communications
  • mMTC Massive Machine-Type Communications
  • eMBB is still targeting users to obtain multimedia content, services and data, and its demand is growing very rapidly.
  • eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized and must be analyzed in detail in conjunction with specific deployment scenarios.
  • Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
  • the typical characteristics of mMTC include: high connection density, small data volume, delay-insensitive services, low cost and long service life of the module.
  • EN-DC LTE-NR Dual Connectivity
  • an LTE base station eNB serves as a master node (Master Node, MN)
  • an NR base station gNB or en-gNB
  • secondary Node Secondary Node, SN
  • other DC modes namely NE-DC, 5GC-EN-DC, and NR DC.
  • EPC the core network connected to the access network
  • 5GC the core network connected to other DC modes
  • a dual-connectivity (DC) enhanced architecture that is, a multiple-connectivity (Multiple Connectivity, MC) architecture.
  • MC multiple Connectivity
  • the MC architecture may be an MR-MC architecture.
  • RRC Radio Resource Control
  • RRC_INACTIVE Radio Resource Control
  • RRC_IDLE state (abbreviated as idle state): mobility is UE-based cell selection and 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 on the base station side, and no RRC connection.
  • RRC_CONNECTED state (referred to as connected state for short): There is an RRC connection, and UE context exists on the base station side and the UE side. The network side knows that the location of the UE is of a specific cell level. Mobility is the mobility controlled by the network side. Unicast data can be transmitted between the UE and the base station.
  • Mobility is UE-based cell selection and reselection, there is a connection between CN-NR, UE context is stored on a certain base station, and paging is triggered by RAN, based on The paging area of the RAN is managed by the RAN, and the network side knows that the location of the UE is based on the paging area level of the RAN.
  • MBMS was introduced in 3GPP Release 6 (Release 6, R6).
  • MBMS is a technology that transmits data from one data source to multiple UEs by sharing network resources. This technology can effectively utilize network resources while providing multimedia services. Realize the broadcast and multicast of multimedia services at a higher rate (such as 256kbps).
  • 3GPP Due to the low spectrum efficiency of MBMS in 3GPP R6, it is not sufficient to effectively carry and support the operation of mobile TV-type services. Therefore, in LTE, 3GPP clearly proposed to enhance the ability to support downlink high-speed MBMS services, and determined 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 unified frequency to send service data in all cells at the same time, but To ensure synchronization between the cells. This method can greatly improve the overall signal-to-noise ratio distribution of the cell, and the spectrum efficiency will be greatly improved accordingly.
  • eMBMS realizes the broadcast and multicast of services based on the IP multicast protocol.
  • MBMS has only a broadcast bearer mode, and no multicast bearer mode.
  • reception of MBMS services is suitable for UEs in idle state or connected state.
  • 3GPP R13 introduced the single cell point to multipoint (Single Cell Point To Multiploint, SC-PTM) concept, and SC-PTM is based on the MBMS network architecture.
  • 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), and further, DL-SCH is mapped to physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), where 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 (HARQ) operations.
  • HARQ Hybrid Automatic Repeat reQuest
  • the 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 radio frames and subframes for scheduling the SC-MCCH.
  • SFN represents the system frame number of the radio frame
  • mcch-RepetitionPeriod represents the repetition period of SC-MCCH
  • mcch-Offset represents SC-MCCH The offset.
  • the subframe for scheduling SC-MCCH is indicated by sc-mcch-Subframe.
  • the SC-MCCH is scheduled through the Physical Downlink Control Channel (PDCCH).
  • a new radio network temporary identity Radio Network Tempory Identity, RNTI
  • SC-RNTI Single Cell RNTI
  • SC-N-RNTI Single Cell Notification RNTI
  • the SC -N-RNTI has a fixed value of FFFB; further, one of the 8 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 is configured with the SC-MTCH, and the SC-MTCH is used to transmit service data.
  • the SC-MCCH only transmits one message (that is, 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 (seession id), group RNTI (Group RNTI, G-RNTI), discontinuous reception (Discontinuous Reception, DRX) configuration information And the SC-PTM business information of the neighboring cell, etc.
  • TMGI Temporary Mobile Group Identity
  • SCPTMConfiguration Session id
  • group RNTI Group RNTI
  • G-RNTI Group RNTI
  • DRX discontinuous reception
  • the SC-PTM business information of the neighboring cell etc.
  • ROHC Robust Header Compression
  • the downlink discontinuous reception of SC-PTM is controlled by the following parameters: onDurationTimerSCPTM, drx-InactivityTimerSCPTM, SC-MTCH-SchedulingCycle, and SC-MTCH-SchedulingOffset.
  • SC-PTM service continuity adopts the concept of MBMS service continuity based on SIB15, namely "SIB15+MBMSInterestIndication" mode.
  • the service continuity of the UE in the idle state is based on the concept of frequency priority.
  • the first SIB includes the configuration information of the first MCCH.
  • the first MCCH is the control channel of the MBMS service.
  • the first SIB is used to configure the configuration information of the control channel of NR MBMS.
  • the control channel of NR MBMS may also be called NR MCCH (that is, the first MCCH).
  • the first MCCH is used to carry the first signaling.
  • the embodiment of this application does not limit the name of the first signaling.
  • the first signaling is signaling A
  • the first signaling includes at least one first MTCH.
  • the first MTCH is a service channel of the MBMS service (also referred to as a data channel or a transmission channel), and the first MTCH is used to transmit MBMS service data (such as NR MBMS service data).
  • the first MCCH is used to configure the configuration information of the NR MBMS traffic channel.
  • the NR MBMS traffic channel may also be called NR MTCH (that is, the first MTCH).
  • the first signaling is used to configure a NR MBMS service channel, service information corresponding to the service channel, and scheduling information corresponding to the service channel.
  • the service information corresponding to the service channel for example, TMGI, session id, and other identification information identifying the service.
  • the scheduling information corresponding to the traffic channel for example, the RNTI used when the MBMS service data corresponding to the traffic channel is scheduled, such as G-RNTI, DRX configuration information, etc.
  • the transmission of the first MCCH and the first MTCH is scheduled based on the PDCCH.
  • the RNTI used for scheduling the PDCCH of the first MCCH uses a unique identifier of the entire network, that is, a fixed value.
  • the RNTI used by the PDCCH for scheduling the first MTCH is configured through the first MCCH.
  • the embodiment of the present application does not impose restrictions on the naming of the first SIB, the first MCCH, and the first MTCH.
  • the first SIB may also be abbreviated as SIB
  • the first MCCH may also be abbreviated as MCCH
  • the first MTCH may also be abbreviated as MTCH.
  • the PDCCH used to schedule the MCCH is configured through the SIB. (Ie MCCH PDCCH) and notification PDCCH, wherein the DCI carried by MCCH PDCCH is used to schedule the PDSCH (ie MCCH PDSCH) used to transmit the MCCH.
  • M PDCCHs (ie MTCH 1PDCCH, MTCH 2PDCCH, ..., MTCH M PDCCH) for scheduling MTCH are configured through the MCCH, where the DCI carried by the MTCH n PDCCH schedules the PDSCH used to transmit the MTCH n (ie MTCH n PDSCH) , N is an integer greater than or equal to 1 and less than or equal to M. 4, MCCH and MTCH are mapped to DL-SCH, and further, DL-SCH is mapped to PDSCH, where MCCH and MTCH belong to logical channels, DL-SCH belongs to transport channels, and PDSCH belongs to physical channels.
  • FIG. 5 is a schematic flowchart of a service data transmission method provided by an embodiment of the application. As shown in FIG. 5, the service data transmission method includes the following steps:
  • Step 501 The first node receives MBMS service data sent by the core network; the first node sends the MBMS service data to at least one second node, and sends the MBMS service data through the first node and the at least one second node.
  • MBMS business data The first node receives MBMS service data sent by the core network; the first node sends the MBMS service data to at least one second node, and sends the MBMS service data through the first node and the at least one second node.
  • the first node may be a base station, such as a gNB.
  • the core network is, for example, 5GC.
  • the first node and the at least one second node form a multi-connection architecture.
  • an MR-MC architecture in an idle state or an inactive state is defined, and the MR-MC architecture is used to transmit MBMS service data.
  • the first node is an anchor node
  • the at least one second node is a secondary node.
  • the MR-MC architecture includes 3 gNB nodes, one of which is an anchor gNB node, and the other two gNB nodes are secondary gNB nodes.
  • the first node after receiving the MBMS service data sent by the core network, the first node sends the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) packet data unit (Packet Data Convergence Protocol, PDCP) of the MBMS service data to the at least one second node. Packet Data Unit, PDU).
  • PDCP Packet Data Convergence Protocol
  • PDCP Packet Data Convergence Protocol
  • PDU Packet Data Unit
  • the PDCP layer of the first node sends the PDCP PDU of the MBMS service data to the radio link control (Radio Link Control, RLC) layer of the at least one second node.
  • RLC Radio Link Control
  • an anchor node for receiving MBMS service data from the core network; there are two secondary nodes (secondary node 1 and secondary node 2) for receiving anchor nodes PDCP PDU of the sent MBMS service data.
  • the anchor node and all auxiliary nodes send MBMS service data.
  • the MBMS service data of the first node and all the second nodes correspond to the same PDCP layer, that is, the PDCP layer of the anchor node.
  • the PDCP layer of the first node copies the MBMS service data from the core network and distributes it to the RLC layer of the first node and the at least one second node, and finally passes through the RLC layer of the first node and the at least one second node.
  • the physical (PHY) layers of the first node and the at least one second node are sent out.
  • the cells corresponding to the first node and the at least one second node include multiple cells, and the areas covered by different cells in the multiple cells may partially overlap or not overlap at all. Terminal devices in different regions can all receive MBMS service data.
  • the MBMS service data sent by the first node and the at least one second node correspond to the same PDCP layer (that is, correspond to the same PDCP configuration information). All cells or some cells corresponding to the at least one second node are associated, and any one of the following methods may be used to achieve this association.
  • Manner 1 All or part of the cells corresponding to the first node and the at least one second node are associated through a first area identifier, and the first area identifier is used to identify the coverage area of the MBMS service data.
  • the first area identifier may be a system information area identifier (systemInformationAreaID) supported in the NR system or a newly defined area identifier.
  • systemInformationAreaID system InformationAreaID
  • the first area identifier is configured in the first SIB or the first MCCH.
  • the first SIB and the first MCCH can be understood with reference to the foregoing related description.
  • Manner 2 All or part of the cells corresponding to the first node and the at least one second node are associated through a first identification list, and the first identification list includes the first node and the at least one second node. The identity of all or part of the cells corresponding to the node.
  • the first identification list is, for example, an N-CGI list.
  • the first identification list is configured in the first SIB or the first MCCH.
  • the first SIB and the first MCCH can be understood with reference to the foregoing related description.
  • the first node sends a first SIB
  • the first SIB includes configuration information of the first MCCH
  • the first MCCH is used to carry first signaling
  • the first signaling is used to Determine the configuration information of at least one first MTCH, where the first MTCH is used to carry the MBMS service data.
  • the second node also sends the first SIB
  • the first SIB includes the configuration information of the first MCCH
  • the first MCCH is used to carry the first signaling
  • the first signaling is used to determine at least Configuration information of a first MTCH, where the first MTCH is used to carry the MBMS service data.
  • the terminal device can obtain the MBMS configuration information of the cells corresponding to the first node and the second node, and realize the reception of MBMS service data based on the MBMS configuration information.
  • Step 502 The terminal device receives MBMS service data sent by at least one cell, where the at least one cell includes a cell corresponding to the first node and/or at least one second node.
  • the terminal device does not perceive whether the cell belongs to the first node or the second node.
  • the MBMS service data sent by the at least one cell comes from the same MBMS service data.
  • the terminal device when the terminal device receives MBMS service data, it can simultaneously receive the MBMS service data of multiple associated cells, and of course, it can also receive the MBMS service data of one cell. Whether a terminal device uses multiple cells to receive MBMS service data at the same time or receives MBMS service data in one cell depends on the terminal device's own implementation.
  • the terminal device receives MBMS service data sent by multiple cells during the cell change process or before or after the cell change. In this way, the reliability of data transmission can be guaranteed.
  • the terminal device receives the MBMS service data sent by 3 cells at the same time. If the MBMS service data of one cell is packet loss or decoding failure occurs, the terminal device can also receive the transmission from other cells The MBMS business data, thereby ensuring the reliability of data transmission.
  • the terminal device when a terminal device simultaneously receives MBMS service data of multiple associated cells, the terminal device performs data packet reordering and repeated detection on the received MBMS service data through the PDCP layer .
  • the terminal device obtains the MBMS configuration information of the at least one cell, and receives MBMS service data respectively sent by the at least one cell based on the MBMS configuration information of the at least one cell.
  • the terminal device may obtain the MBMS configuration information of the at least one cell in the following manner: the terminal device receives the first SIB respectively sent by the at least one cell, and the first SIB includes Configuration information of the first MCCH, the first MCCH is used to carry first signaling, the first signaling is used to determine the configuration information of at least one first MTCH, and the first MTCH is used to carry the MBMS service data.
  • the terminal device may obtain the MBMS configuration information of the at least one cell in the following manner: the terminal device receives the first SIB sent by one of the at least one cell, and The first SIB includes configuration information of the first MCCH corresponding to the cell and at least one neighboring cell; or, the first SIB includes configuration information of the first MTCH corresponding to the cell and at least one neighboring cell.
  • FIG. 7 is a schematic diagram 1 of the structural composition of a service data transmission device provided by an embodiment of the application. As shown in FIG. 7, the service data transmission device includes:
  • the receiving unit 701 is configured to receive MBMS service data sent by the core network
  • the sending unit 702 is configured to send the MBMS service data to at least one second node, and send the MBMS service data through the first node and the at least one second node.
  • the sending unit 702 is configured to send the PDCP PDU of the MBMS service data to the at least one second node.
  • the sending unit 702 is configured to send the PDCP PDU of the MBMS service data to the radio link control RLC layer of the at least one second node through the PDCP layer.
  • the first node and the at least one second node form a multi-connection architecture.
  • all or part of the cells corresponding to the first node and the at least one second node are associated through a first area identifier, and the first area identifier is used to identify the MBMS service data Coverage area.
  • the first area identifier is configured in the first SIB or the first MCCH.
  • all or part of the cells corresponding to the first node and the at least one second node are associated through a first identification list, and the first identification list includes the first node and all the cells. The identities of all or part of the cells corresponding to the at least one second node.
  • the first identification list is configured in the first SIB or the first MCCH.
  • the sending unit 702 is further configured to send a first SIB, where the first SIB includes configuration information of a first MCCH, and the first MCCH is used to carry first signaling, and The first signaling is used to determine configuration information of at least one first MTCH, and the first MTCH is used to carry the MBMS service data.
  • FIG. 8 is a schematic diagram 2 of the structural composition of the service data transmission device provided by the embodiment of the application. As shown in FIG. 8, the service data transmission device includes:
  • the receiving unit 801 is configured to receive MBMS service data sent by at least one cell, where the at least one cell includes a cell corresponding to the first node and/or at least one second node, and the MBMS service data sent by the at least one cell comes from the same MBMS business data.
  • the device further includes:
  • the obtaining unit 802 is configured to obtain MBMS configuration information of the at least one cell
  • the receiving unit 801 is configured to receive MBMS service data respectively sent by the at least one cell based on the MBMS configuration information of the at least one cell.
  • the acquiring unit 802 is configured to receive a first SIB respectively sent by the at least one cell, where the first SIB includes configuration information of a first MCCH, and the first MCCH is used to carry First signaling, the first signaling is used to determine configuration information of at least one first MTCH, and the first MTCH is used to carry the MBMS service data.
  • all or part of the cells corresponding to the first node and the at least one second node are associated through a first area identifier, and the first area identifier is used to identify the MBMS service data Coverage area.
  • the first area identifier is configured in the first SIB or the first MCCH.
  • all or part of the cells corresponding to the first node and the at least one second node are associated through a first identification list, and the first identification list includes the first node and all the cells. The identities of all or part of the cells corresponding to the at least one second node.
  • the first identification list is configured in the first SIB or the first MCCH.
  • the device further includes:
  • the processing unit (not shown in the figure) is used for reordering and repetitive detection of data packets on the received MBMS service data through the PDCP layer.
  • the receiving unit 801 is configured to receive MBMS service data sent by multiple cells during the cell change process or before or after the cell change.
  • the cell change refers to cell reselection or cell handover.
  • FIG. 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application.
  • the communication device may be a terminal device or a network device.
  • the communication device 900 shown in FIG. 9 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 900 may further include a memory 920.
  • the processor 910 can call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.
  • the memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.
  • the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 930 may include a transmitter and a receiver.
  • the transceiver 930 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 900 may specifically be a network device of an embodiment of the application, and the communication device 900 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For the sake of brevity, details are not repeated here. .
  • the communication device 900 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 900 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 1000 may further include a memory 1020.
  • the processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.
  • the memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.
  • the chip 1000 may further include an input interface 1030.
  • the processor 1010 can control the input interface 1030 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 1000 may further include an output interface 1040.
  • the processor 1010 can control the output interface 1040 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 process implemented by the network device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.
  • FIG. 11 is a schematic block diagram of a communication system 1100 according to an embodiment of the present application. As shown in FIG. 11, the communication system 1100 includes a terminal device 1110 and a network device 1120.
  • the terminal device 1110 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 1120 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates 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 logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • 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 the embodiments 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 can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), 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 to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.
  • the 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 embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, 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 the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: 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 code .

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

Abstract

Un procédé et un appareil de transmission de données de service, et un dispositif de réseau et un dispositif terminal sont fournis. Le procédé fait appel aux étapes suivantes : un premier noeud recevant des données de service de diffusion/multidiffusion multimédia (MBMS) envoyées par un réseau central ; et le premier noeud envoyant les données MBMS à au moins un second noeud, les données MBMS étant envoyées au moyen du premier noeud et de l'au moins un second nœud.
PCT/CN2019/106490 2019-09-18 2019-09-18 Procédé et appareil de transmission de données de service, et dispositif de réseau et dispositif terminal WO2021051316A1 (fr)

Priority Applications (2)

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CN201980095115.4A CN113711689A (zh) 2019-09-18 2019-09-18 一种业务数据传输方法及装置、网络设备、终端设备
PCT/CN2019/106490 WO2021051316A1 (fr) 2019-09-18 2019-09-18 Procédé et appareil de transmission de données de service, et dispositif de réseau et dispositif terminal

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CN105940756A (zh) * 2014-01-31 2016-09-14 三星电子株式会社 用于实现双连通性的方法和装置
CN107710667A (zh) * 2015-07-01 2018-02-16 Lg 电子株式会社 在双连接中发送数据的方法及其设备
US20180160398A1 (en) * 2016-12-02 2018-06-07 Ofinno Technologies, Llc MBMS Configuration between eNBs for V2X Services
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CN105940756A (zh) * 2014-01-31 2016-09-14 三星电子株式会社 用于实现双连通性的方法和装置
CN107710667A (zh) * 2015-07-01 2018-02-16 Lg 电子株式会社 在双连接中发送数据的方法及其设备
US20180160398A1 (en) * 2016-12-02 2018-06-07 Ofinno Technologies, Llc MBMS Configuration between eNBs for V2X Services
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