WO2022226937A1 - Procédé et appareil de radiomessagerie mbs, dispositif de réseau et dispositif terminal - Google Patents

Procédé et appareil de radiomessagerie mbs, dispositif de réseau et dispositif terminal Download PDF

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Publication number
WO2022226937A1
WO2022226937A1 PCT/CN2021/091172 CN2021091172W WO2022226937A1 WO 2022226937 A1 WO2022226937 A1 WO 2022226937A1 CN 2021091172 W CN2021091172 W CN 2021091172W WO 2022226937 A1 WO2022226937 A1 WO 2022226937A1
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Prior art keywords
mbs
cell
terminal device
indication information
area
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PCT/CN2021/091172
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English (en)
Chinese (zh)
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王淑坤
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Oppo广东移动通信有限公司
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Priority to CN202180082941.2A priority Critical patent/CN116602043A/zh
Priority to PCT/CN2021/091172 priority patent/WO2022226937A1/fr
Publication of WO2022226937A1 publication Critical patent/WO2022226937A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management

Definitions

  • the embodiments of the present application relate to the field of mobile communication technologies, and in particular to a Multimedia Broadcast Service (MBS) paging method and apparatus, network equipment, and terminal equipment.
  • MMS Multimedia Broadcast Service
  • the terminal device When there is no MBS service transmission, the terminal device can be released by the network to a radio resource control (Radio Resource Control, RRC) idle state or an RRC inactive state.
  • RRC Radio Resource Control
  • the network can wake up the terminal equipment to receive the MBS service through paging. How the network can effectively trigger the paging for the terminal device needs to be improved.
  • Embodiments of the present application provide an MBS paging method and apparatus, network equipment, and terminal equipment.
  • the core network device receives first indication information, where the first indication information is used to indicate whether the terminal device is in the MBS area or in the non-MBS area;
  • the core network device triggers the paging of the MBS service based on the first indication information.
  • the terminal device sends first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area;
  • the first indication information is used for the core network device to trigger the paging of the MBS service.
  • the MBS paging apparatus provided by the embodiment of the present application is applied to core network equipment, and the apparatus includes:
  • a receiving unit configured to receive first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area;
  • a paging unit configured to trigger the paging of the MBS service based on the first indication information.
  • the MBS paging apparatus provided by the embodiment of the present application is applied to terminal equipment, and the apparatus includes:
  • a sending unit configured to send first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area;
  • the first indication information is used for the core network device to trigger the paging of the MBS service.
  • the network device 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 MBS paging method.
  • 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 MBS paging method.
  • the chip provided by the embodiment of the present application is used to implement the above-mentioned MBS paging method.
  • 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 MBS paging 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 MBS paging method.
  • the computer program product provided by the embodiments of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned MBS paging method.
  • the computer program provided by the embodiment of the present application when it runs on the computer, causes the computer to execute the above-mentioned MBS paging method.
  • the core network device can determine whether the terminal device is in the MBS area or the non-MBS area according to the first indication information, so as to combine whether the terminal device is in the MBS area.
  • the paging of the MBS service is triggered, which improves the paging efficiency of the terminal equipment in the MBS area and the non-MBS area, avoids the waste of air interface resources, and improves the frequency efficiency of the system.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a transmission network architecture diagram of an MBS service provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of an MBS paging method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a core network device triggering paging according to an embodiment of the present application
  • FIG. 5 is a schematic diagram 1 of the structure and composition of an MBS paging apparatus provided by an embodiment of the present application;
  • FIG. 6 is a schematic diagram 2 of the structure and composition of an MBS paging apparatus provided by an embodiment of the present application;
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 9 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 based on terminal device 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 terminal device context and no RRC connection on the base station side.
  • RRC_CONNECTED state (referred to as connected (connected) state for short): there is an RRC connection, and a terminal device context exists on the base station side and the terminal device side.
  • the network side knows that the location of the terminal equipment is at the specific cell level. Mobility is the mobility controlled by the network side. Unicast data can be transmitted between the terminal equipment and the base station.
  • RRC_INACTIVE state (referred to as inactive state): mobility is based on terminal equipment cell selection reselection, there is a connection between CN-NR, terminal equipment context exists on a certain base station, paging is triggered by RAN , the RAN-based paging area is managed by the RAN, and the network side knows the location of the terminal device is based on the RAN-based paging area level.
  • 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.
  • a new SIB (called the first SIB) is defined, and the first SIB includes the configuration information of the first MCCH.
  • the first MCCH is the control channel of the MBMS service.
  • An SIB is used to configure the configuration information of the control channel of the NR MBMS.
  • the control channel of the NR MBMS may also be called the NR MCCH (that is, the first MCCH).
  • the first MCCH is used to carry the first signaling, and 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 (also called a data channel or a transmission channel) of the MBMS service
  • 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 traffic channel of the NR MBMS.
  • the traffic channel of the NR MBMS may also be called the NR MTCH (that is, the first MTCH).
  • the first signaling is used to configure a service channel of the NR MBMS, service information corresponding to the service channel, and scheduling information corresponding to the service channel.
  • the service information corresponding to the service channel such as TMGI, session id and other identification information for identifying services.
  • the scheduling information corresponding to the traffic channel such as the RNTI used when the MBMS service data corresponding to the traffic channel is scheduled, such as G-RNTI, DRX configuration information, etc.
  • the transmissions of the first MCCH and the first MTCH are both scheduled based on the PDCCH.
  • the RNTI used for scheduling the PDCCH of the first MCCH uses a network-wide unique identifier, that is, a fixed value.
  • the RNTI used by the PDCCH for scheduling the first MTCH is configured through the first MCCH.
  • this embodiment of the present application does not limit 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.
  • M PDCCHs for scheduling MTCH through MCCH (ie MTCH 1 PDCCH, MTCH 2 PDCCH, ..., MTCH M PDCCH), wherein the DCI carried by MTCH n PDCCH schedules the PDSCH used for transmitting MTCH n (ie MTCH n PDSCH), n is an integer greater than or equal to 1 and less than or equal to M.
  • MCCH and MTCH are mapped to DL-SCH, and further, DL-SCH is mapped to PDSCH, wherein MCCH and MTCH belong to logical channels, DL-SCH belongs to transport channels, and PDSCH belongs to physical channels.
  • the 5G core network transmits the MBS service flow to the 5G access network (such as gNB) through the shared GTP tunnel.
  • PTP point-to-multipoint
  • PTM Point To Multipoint
  • a terminal device For a terminal device that receives an MBS service, it also receives other non-MBS services, such as eMBB services. Therefore, when there is no MBS service transmission, the terminal device can be released to the RRC idle state or the RRC inactive state or kept in the RRC connected state by the network side. When the terminal device is in the RRC idle state or the RRC inactive state, when the data of the MBS service arrives, the network side can wake up the terminal device through paging to receive the MBS service.
  • eMBB services non-MBS services
  • NR supports beam sweeping transmission, so a paging message will be transmitted in multiple copies in a cell, and the specific number of copies depends on the number of synchronization signal blocks (SS/PBCH Block, SSB) actually transmitted by the cell.
  • SS/PBCH Block SSB
  • the paging messages of the MBS service will have a very high load and waste radio resources.
  • the terminal equipment For a cell supporting MBS, the terminal equipment is triggered to enter the RRC connected state by means of group notification to receive the MBS service.
  • group notification For cells that do not support MBS services, for example, functionally do not support MBS services, or traditional cells (that is, cells that have not been upgraded), at this time, it is not possible to trigger the terminal equipment residing in such cells to enter the RRC by means of group notification.
  • Connected state to receive MBS services Connected state to receive MBS services.
  • the network side does not know which terminal equipment resides in a cell that supports the MBS service and which terminal equipment resides in a cell that does not support the MBS service. This will cause the network to be unable to trigger paging effectively.
  • FIG. 3 is a schematic flowchart of an MBS paging method provided by an embodiment of the present application. As shown in FIG. 3 , the MBS paging party includes the following steps:
  • Step 301 The terminal device sends first indication information, and the core network device receives the first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area.
  • the first indication information is used for the core network device to trigger the paging of the MBS service.
  • the core network device is an access and mobility management function network element (Access and Mobility Management Function, AMF).
  • AMF Access and Mobility Management Function
  • receiving the first indication information by the core network device may be implemented in the following manner.
  • Manner 1 The terminal device sends non-access stratum (NAS) signaling to the core network device, and the core network device receives the NAS signaling sent by the terminal device, where the NAS signaling carries the first indication information.
  • NAS non-access stratum
  • the NAS signaling is sent by the terminal device based on an RRC connection establishment process after performing cell reselection from the first cell to the second cell in the RRC idle state of the radio resource control.
  • the NAS signaling is a registration request message.
  • the NAS signaling is sent based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in an RRC inactive state.
  • the NAS signaling is a registration request message.
  • the first cell is a cell in a non-MBS area
  • the second cell is a cell in an MBS area; correspondingly, the first indication information is used to indicate that the terminal device is in the MBS area .
  • the first cell is a cell in an MBS area
  • the second cell is a cell in a non-MBS area; correspondingly, the first indication information is used to indicate that the terminal device is in a non-MBS area area.
  • the non-MBS area refers to an area that does not support MBS services or does not support MBS
  • the cells in the non-MBS area refer to cells that do not support MBS services or do not support MBS.
  • the MBS area refers to an area supporting MBS services or supporting MBS
  • a cell under the MBS area refers to a cell supporting MBS service or supporting MBS.
  • Manner 2 The terminal device sends first indication information to the base station, and the first indication information is forwarded by the base station to the core network device; the core network device receives the first indication information from the terminal device forwarded by the base station.
  • the first indication information is the information sent by the terminal device to the base station based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in the RRC inactive state.
  • the first indication information is carried in an RRC recovery complete message.
  • the first cell is a cell in a non-MBS area
  • the second cell is a cell in an MBS area; correspondingly, the first indication information is used to indicate that the terminal device is in the MBS area .
  • the first cell is a cell in an MBS area
  • the second cell is a cell in a non-MBS area; correspondingly, the first indication information is used to indicate that the terminal device is in a non-MBS area area.
  • the non-MBS area refers to an area that does not support MBS services or does not support MBS
  • the cells in the non-MBS area refer to cells that do not support MBS services or do not support MBS.
  • the MBS area refers to an area supporting MBS services or supporting MBS
  • a cell under the MBS area refers to a cell supporting MBS service or supporting MBS.
  • Step 302 The core network device triggers the paging of the MBS service based on the first indication information.
  • the core network device when the MBS service is activated or there is data to be sent in the MBS service, the core network device triggers the paging of the MBS service based on the first indication information.
  • the following describes how the core network device triggers the paging of the MBS service.
  • the core network device determines information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; the core network device determines the information of the multiple terminal devices based on the information of the multiple terminal devices and the correspondence between the multiple terminal devices the first indication information, determine at least one first terminal device in the non-MBS area among the multiple terminal devices; for each first terminal device in the at least one first terminal device, the core network device triggers The base station initiates UE-level paging to the registration area where the first terminal device is located.
  • UE-level paging may also be referred to as per UE paging.
  • the registration area may be represented by a tracking area list (TA list) and/or a cell list (cell list).
  • TA list tracking area list
  • cell list cell list
  • the solution related to the above-mentioned case 1 is for paging for terminal equipment in an RRC idle state, and for paging for terminal equipment located in a non-MBS area.
  • the core network device determines information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; the core network device determines the information of the multiple terminal devices based on the information of the multiple terminal devices and the correspondence between the multiple terminal devices the first indication information, determine at least one second terminal device in the MBS area among the plurality of terminal devices; the core network device determines the registration area set of the at least one second terminal device, and triggers the registration area set
  • the corresponding base station sends a group notification to the MBS area corresponding to the registration area set.
  • the registration area may be represented by a tracking area list (TA list) and/or a cell list (cell list).
  • TA list tracking area list
  • cell list cell list
  • the group notification is a paging message carrying the MBS session identifier; or, the group notification is MCCH signaling carrying the MBS session identifier, and the MCCH signaling is used to indicate that the MBS service is activated.
  • the above-mentioned solution related to the second case is for paging for terminal equipment in the RRC idle state, and for paging for terminal equipment located in the MBS area.
  • the core network device determines information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; the core network device determines the information of the multiple terminal devices based on the information of the multiple terminal devices and the correspondence between the multiple terminal devices
  • the first indication information is to determine at least one first terminal device in the non-MBS area and/or at least one second terminal device in the MBS area among the plurality of terminal devices.
  • the core network device For at least one first terminal device in a non-MBS area, the core network device sends a first signaling to the base station, where the first signaling is used to trigger the base station to initiate a UE-level paging of the at least one first terminal device;
  • the core network device For at least one second terminal device located in the MBS area, the core network device sends a second signaling to the base station, where the second signaling is used to trigger the base station to initiate targeting to the MBS within the MBS area Business paging.
  • the first signaling carries second indication information, where the second indication information is used to indicate that the MBS service is activated.
  • the second instruction carries at least one of the following: a service identifier of the MBS service, a DRX parameter for discontinuous reception of the MBS service, and a paging area of the MBS service.
  • case 3 is for paging of terminal equipment in the RRC inactive state
  • solution in case 3 is for paging of terminal equipment located in a non-MBS area
  • 2 in case 3 scheme is paging for terminal equipment located in the MBS area.
  • the service identifier of the MBS service may be TMGI.
  • a core network device (such as an AMF) triggers a cell under the MBS area to send a group notification.
  • the core network device When a certain MBS service is activated or there is data to be sent, the core network device obtains the registration area information of all terminal devices that join the MBS service according to the service identifier of the MBS (such as TMGI); A collection of registration area information (such as TA list and/or cell list) of all terminal equipment of the MBS service, and sends a paging message of the NG interface to the corresponding base station to trigger the base station to send a paging message to the terminal equipment.
  • the service identifier of the MBS such as TMGI
  • a collection of registration area information such as TA list and/or cell list
  • the paging message sent by the core network device to the base station includes the TA list and/or the cell list, which is used to indicate to which cells the base station sends the air interface group Notice.
  • the paging message sent by the core network device to the base station includes the TA list and/or the subset of the cell list, which is used to indicate which cells the base station is sending to the base station. Send group notifications on the air interface.
  • the group notification may be a paging message carrying an MBS session identifier.
  • the group notification may be MCCH signaling carrying an MBS session identifier, where the MCCH signaling is used to indicate that the MBS service is activated.
  • the terminal device for a terminal device that has joined a certain MBS group in the RRC idle state, the terminal device leaves a cell in a non-MBS area, and the target cell for cell reselection is a cell in the MBS area, then the terminal device initiates In the RRC connection establishment process, NAS signaling is sent to the core network device (eg, AMF), where the NAS signaling carries first indication information, and the first indication information is used to indicate that the terminal device is currently in the MBS area.
  • the NAS signaling may be a registration request message.
  • the terminal device For a terminal device that has joined a certain MBS group in the RRC inactive state, the terminal device leaves the cell in the non-MBS area, and the target cell for cell reselection is the cell in the MBS area, then, the terminal device Suppose an RRC connection recovery process is initiated, option 1)
  • the terminal device sends NAS signaling to the core network device (such as AMF), the NAS signaling carries first indication information, and the first indication information is used to indicate that the terminal device is currently in MBS area.
  • the NAS signaling may be a registration request message.
  • the terminal equipment sends first indication information to the base station, the first indication information indicates that the terminal equipment is currently in the MBS area, and the RRC signaling carrying the first indication information may be RRC recovery complete. information. Then, the base station forwards the shown first indication information to the core network device (eg, AMF).
  • the core network device eg, AMF
  • the terminal device can determine whether the cell to leave and the target cell for cell reselection are cells in a non-MBS area or a cell in an MBS area in the following manner:
  • the cell will broadcast an indication message to indicate whether the current cell supports the MBS service.
  • a cell that supports the MBS service can be understood as a cell in the MBS area, and a cell that does not support the MBS service can be understood as a cell in a non-MBS area.
  • the terminal device can determine whether the cell is a cell under the MBS area according to the indication information.
  • the terminal device For a terminal device that has joined a certain MBS group in the RRC idle state, the terminal device leaves the cell in the MBS area, and the target cell for cell reselection is a cell in the non-MBS area, then the terminal device initiates RRC The connection establishment process is performed, and NAS signaling is sent to the core network device (eg, AMF), where the NAS signaling carries first indication information, and the first indication information is used to indicate that the terminal device is currently in a non-MBS area.
  • the NAS signaling may be a registration request message.
  • the terminal device sets Initiate the RRC connection recovery process, option 1)
  • the terminal device sends NAS signaling to the core network device (such as AMF), the NAS signaling carries first indication information, and the first indication information is used to indicate that the terminal device is currently in non-MBS area.
  • the NAS signaling may be a registration request message.
  • the terminal equipment sends first indication information to the base station, the first indication information indicates that the terminal equipment is currently in a non-MBS area, and the RRC signaling carrying the first indication information may be RRC recovery Done message. Then, the base station forwards the shown first indication information to the core network device (eg, AMF).
  • the core network device eg, AMF
  • the terminal device can determine whether the cell to leave and the target cell for cell reselection are cells in a non-MBS area or a cell in an MBS area in the following manner:
  • the cell will broadcast an indication message to indicate whether the current cell supports the MBS service.
  • a cell that supports the MBS service can be understood as a cell in the MBS area, and a cell that does not support the MBS service can be understood as a cell in a non-MBS area.
  • the terminal device can determine whether the cell is a cell under the MBS area according to the indication information.
  • a core network device eg, AMF triggers a cell in a non-MBS area to send UE-level paging.
  • the core network device When a certain MBS service is activated or there is data to be sent, the core network device acquires the information of all terminal devices joining the MBS service according to the service identifier (eg TMGI) of the MBS service. For a terminal device in a non-MBS area, the core network device initiates UE-level paging to the registration area (such as the TA list) where the terminal device is located.
  • the service identifier eg TMGI
  • the core network equipment eg, AMF
  • the core network equipment triggers to initiate paging for the terminal equipment in the RRC inactive state to the cells in the MBS area and the cells in the non-MBS area.
  • the MBS service is in the deactivated state, the shared GTP tunnel between the base station and the core network will be deleted and released. Therefore, when the MBS service is activated or there is data to be sent, the core network device needs to trigger a signaling to notify the base station to send the search request. call message. It should be noted that, even for the terminal equipment in the RRC inactive state, the paging is triggered by the core network at this time, not the paging triggered by the RAN.
  • the core network when the MBS service is activated or there is data to be sent, the core network sends signaling to the base station, where the signaling is used to trigger the base station to send a paging message for the MBS service , optionally, the signaling includes at least one of the following information: MBS service identifier, DRX parameter (eg, DRX cycle), and paging area.
  • a paging area may be represented by a TA list and/or a cell list.
  • the core network device when the MBS service is activated or there is data to be sent, the core network device sends signaling to the base station, which is used to trigger the base station to initiate RAN paging, that is, UE-level paging.
  • the signaling includes indication information, where the indication information is used to indicate that the MBS service is activated.
  • the core network device when the MBS service is activated or there is data to be sent in the MBS service, the core network device can determine whether the terminal device is in the MBS area or in the non-MBS area according to the first indication information, so as to combine the terminal device Whether it is in the MBS area or in the non-MBS area triggers the paging of the MBS service, which improves the efficiency of paging the terminal equipment in the MBS area and the non-MBS area, avoids the waste of air interface resources, and improves the frequency efficiency of the system.
  • FIG. 5 is a schematic diagram 1 of the structure and composition of an MBS paging apparatus provided by an embodiment of the present application, which is applied to core network equipment.
  • the MBS paging apparatus includes:
  • a receiving unit 501 configured to receive first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area;
  • the paging unit 502 is configured to trigger the paging of the MBS service based on the first indication information.
  • the receiving unit 501 is configured to receive NAS signaling sent by a terminal device, where the NAS signaling carries the first indication information.
  • the NAS signaling is sent based on an RRC connection establishment process after the terminal device performs cell reselection from the first cell to the second cell in the RRC idle state.
  • the NAS signaling is sent based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in an RRC inactive state.
  • the NAS signaling is a registration request message.
  • the receiving unit 501 is configured to receive the first indication information from the terminal device forwarded by the base station.
  • the first indication information is the information sent by the terminal device to the base station based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in the RRC inactive state.
  • the first indication information is carried in an RRC recovery complete message.
  • the first cell is a cell in a non-MBS area
  • the second cell is a cell in an MBS area
  • the first indication information is used to indicate that the terminal device is in the MBS area.
  • the first cell is a cell in an MBS area
  • the second cell is a cell in a non-MBS area
  • the first indication information is used to indicate that the terminal device is in a non-MBS area.
  • the paging unit 502 is configured to trigger the paging of the MBS service based on the first indication information when the MBS service is activated or there is data to be sent in the MBS service.
  • the apparatus further comprises:
  • a determining unit 503 configured to determine information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; based on the information of the multiple terminal devices and the first indication corresponding to the multiple terminal devices information, determining at least one first terminal device in the non-MBS area among the plurality of terminal devices;
  • the paging unit 502 is configured to, for each first terminal device in the at least one first terminal device, trigger the base station to initiate UE-level paging to the registration area where the first terminal device is located.
  • the apparatus further comprises:
  • a determining unit 503 configured to determine information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; based on the information of the multiple terminal devices and the first indication corresponding to the multiple terminal devices information, determine at least one second terminal device in the MBS area among the plurality of terminal devices; determine the registration area set of the at least one second terminal device;
  • the paging unit 502 is configured to trigger the base station corresponding to the registration area set to send a group notification to the MBS area corresponding to the registration area set.
  • the group notification is a paging message carrying an MBS session identifier
  • the group notification is MCCH signaling carrying the MBS session identifier, and the MCCH signaling is used to indicate that the MBS service is activated.
  • the apparatus further comprises:
  • a determining unit 503 configured to determine information of multiple terminal devices joining the MBS service based on the service identifier of the MBS service; based on the information of the multiple terminal devices and the first indication corresponding to the multiple terminal devices information, determining at least one first terminal device in the non-MBS area and/or at least one second terminal device in the MBS area among the plurality of terminal devices;
  • the paging unit 502 is configured to, for at least one first terminal device located in a non-MBS area, send a first signaling to a base station, where the first signaling is used to trigger the base station to initiate in the non-MBS area UE-level paging for the at least one first terminal device; for at least one second terminal device in the MBS area, the core network device sends a second signaling to the base station, where the second signaling is used to trigger The base station initiates paging for the MBS service within the MBS area.
  • the first signaling carries second indication information, where the second indication information is used to indicate that the MBS service is activated.
  • the second instruction carries at least one of the following: a service identifier of the MBS service, a DRX parameter of the MBS service, and a paging area of the MBS service.
  • FIG. 6 is a schematic diagram 2 of the structure and composition of an MBS paging apparatus provided by an embodiment of the present application, which is applied to terminal equipment.
  • the MBS paging apparatus includes:
  • a sending unit 601 configured to send first indication information, where the first indication information is used to indicate whether the terminal device is in an MBS area or a non-MBS area;
  • the first indication information is used for the core network device to trigger the paging of the MBS service.
  • the sending unit 601 is configured to send NAS signaling to the core network device, where the NAS signaling carries the first indication information.
  • the NAS signaling is sent based on an RRC connection establishment process after the terminal device performs cell reselection from the first cell to the second cell in the RRC idle state.
  • the NAS signaling is sent based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in an RRC inactive state.
  • the NAS signaling is a registration request message.
  • the sending unit 601 is configured to send first indication information to a base station, where the first indication information is forwarded by the base station to a core network device.
  • the first indication information is the information sent by the terminal device to the base station based on an RRC connection recovery process after the terminal device performs cell reselection from the first cell to the second cell in the RRC inactive state.
  • the first indication information is carried in an RRC recovery complete message.
  • the first cell is a cell in a non-MBS area
  • the second cell is a cell in an MBS area
  • the first indication information is used to indicate that the terminal device is in the MBS area.
  • the first cell is a cell in an MBS area
  • the second cell is a cell in a non-MBS area
  • the first indication information is used to indicate that the terminal device is in a non-MBS area.
  • FIG. 7 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application.
  • the communication device may be a terminal device or a network device.
  • the communication device 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the methods in the embodiments of the present application.
  • the communication device 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 communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 700 may specifically be the network device in this embodiment of the present application, and the communication device 700 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 700 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 700 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. 8 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 800 shown in FIG. 8 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the methods in the embodiments of the present application.
  • the chip 800 may further include a memory 820 .
  • the processor 810 may call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.
  • the memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .
  • the chip 800 may further include an input interface 830 .
  • the processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the chip 800 may further include an output interface 840 .
  • the processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may 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. 9 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 9 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 920 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.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not 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 When the computer program is run on the computer, it causes the computer to execute 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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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé et un appareil de radiomessagerie MBS, un dispositif de réseau et un dispositif terminal. Le procédé comprend les étapes suivantes : un dispositif de réseau central reçoit des premières informations d'indication, les premières informations d'indication étant utilisées pour indiquer si le dispositif terminal se trouve dans une zone MBS ou une zone non-MBS ; le dispositif de réseau central déclenche une radiomessagerie d'un service MBS sur la base des premières informations d'indication.
PCT/CN2021/091172 2021-04-29 2021-04-29 Procédé et appareil de radiomessagerie mbs, dispositif de réseau et dispositif terminal WO2022226937A1 (fr)

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CN202180082941.2A CN116602043A (zh) 2021-04-29 2021-04-29 一种mbs寻呼方法及装置、网络设备、终端设备
PCT/CN2021/091172 WO2022226937A1 (fr) 2021-04-29 2021-04-29 Procédé et appareil de radiomessagerie mbs, dispositif de réseau et dispositif terminal

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CATT, TENCENT: "KI#7, Sol#18: Update to resolve ENs", 3GPP DRAFT; S2-2009480, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. E (e-meeting) Elbonia ;20201012 - 20201023, 20 November 2020 (2020-11-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051956928 *
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