WO2023020276A1 - 组播广播业务数据传输方法、装置、设备以及存储介质 - Google Patents

组播广播业务数据传输方法、装置、设备以及存储介质 Download PDF

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Publication number
WO2023020276A1
WO2023020276A1 PCT/CN2022/109761 CN2022109761W WO2023020276A1 WO 2023020276 A1 WO2023020276 A1 WO 2023020276A1 CN 2022109761 W CN2022109761 W CN 2022109761W WO 2023020276 A1 WO2023020276 A1 WO 2023020276A1
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mbs
data
relay
relay terminal
remote terminal
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PCT/CN2022/109761
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English (en)
French (fr)
Inventor
邓强
段小嫣
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大唐移动通信设备有限公司
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Publication of WO2023020276A1 publication Critical patent/WO2023020276A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present application relates to the technical field of mobile communication, and in particular to a multicast broadcast service data transmission method, device, device and storage medium.
  • Proximity Services Proximity Services
  • Embodiments of the present application provide a multicast broadcast service data transmission method, device, device, and storage medium, which enable a remote terminal to obtain MBS data from a network device through a relay terminal.
  • the embodiment of the present application provides a multicast broadcast service MBS data transmission method, which is applied to a remote terminal, and the method includes:
  • the MBS monitoring request includes the MBS session identifier of the first MBS, and the MBS monitoring request is used to instruct the relay terminal to obtain the MBS data of the first MBS from the network device;
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the embodiment of the present application also provides a multicast broadcast service MBS data transmission method, the method comprising:
  • the MBS monitoring request includes the MBS session identifier of the first MBS
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the embodiment of the present application also provides a remote terminal, the remote terminal includes a memory, a processor, and a computer program stored in the memory and operable on the processor, when the processor executes the computer program, the The multicast broadcast service data transmission method provided in the first aspect.
  • the embodiment of the present application also provides a relay terminal.
  • the remote terminal includes a memory, a processor, and a computer program stored in the memory and operable on the processor.
  • the processor executes the computer program, it realizes
  • the second aspect provides a multicast broadcast service data transmission method.
  • the embodiment of the present application also provides a multicast broadcast service MBS data transmission device, the device includes:
  • the first sending unit is configured to send an MBS monitoring request to the relay terminal, the MBS monitoring request includes the MBS session identifier of the first MBS, and the MBS monitoring request is used to instruct the relay terminal to acquire the MBS of the first MBS from the network device data;
  • a first receiving unit configured to receive the above-mentioned MBS data sent by the above-mentioned relay terminal
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the embodiment of the present application also provides a multicast broadcast service MBS data transmission device, the device comprising:
  • the second receiving unit is configured to receive an MBS monitoring request sent by a remote terminal, where the MBS monitoring request includes the MBS session identifier of the first MBS;
  • a data acquisition unit configured to acquire the MBS data of the first MBS from the network device based on the MBS monitoring request
  • a second sending unit configured to send the above MBS data to the above remote terminal
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the embodiment of the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the above method are implemented .
  • Fig. 1 is a schematic flow chart of a multicast broadcast service data transmission method
  • Fig. 2 is another schematic flow diagram of a multicast broadcast service data transmission method
  • FIG. 3 is a schematic diagram of a sequence of sending MBS data to a remote UE in a multicast manner
  • FIG. 4 is a schematic diagram of a sequence of sending MBS data to a remote UE in a unicast manner
  • FIG. 5 is a schematic diagram of the sequence of PUD session establishment failure or MBS session joining failure
  • FIG. 6 is a schematic structural diagram of a multicast broadcast service data transmission device
  • FIG. 7 is another structural schematic diagram of a multicast broadcast service data transmission device
  • FIG. 8 is a schematic structural diagram of an electronic device.
  • Embodiments of the present application provide a multicast broadcast service data transmission method, device, device, and storage medium, so as to obtain multicast broadcast service data from a network.
  • the method and the device are conceived based on the same application. Since the principle of solving problems of the method and the device is similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new air interface (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless business
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • UMTS universal mobile telecommunications
  • the remote terminal and relay terminal involved in the embodiment of the present application may be devices that provide voice and/or data connectivity to users, handheld devices with wireless connection functions, or other processing devices connected to wireless modems.
  • the name of the terminal equipment may be different.
  • the terminal equipment may be called User Equipment (User Equipment, UE).
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • Core Network Core Network
  • RAN Radio Access Network
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.
  • the network device involved in this embodiment of the present application may be a base station, and the base station may include multiple cells that provide services for terminals.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network equipment involved in the embodiment of the present application may be a network equipment (Base Transceiver Station, BTS) in the GSM system or CDMA, it may also be a network equipment (NodeB) in WCDMA, and it may also be an evolved network in the LTE system Equipment (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node ), a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present application.
  • a network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.
  • MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO (Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission, etc.
  • FIG. 1 is a schematic flowchart of a method for transmitting multicast broadcast service data, which can be executed by a remote terminal.
  • the multicast broadcast service data transmission method specifically includes the following steps when executed by a remote terminal:
  • Step S11 sending an MBS monitoring request to the relay terminal, where the MBS monitoring request is used to instruct the relay terminal to acquire MBS data of the first MBS from the network device.
  • the remote terminal When the remote terminal is outside the coverage of the network, or the signal quality of the communication interface with the network device is poor, so that it cannot be directly connected to the network device, it can be connected to the network device through the relay terminal.
  • the remote terminal When the remote terminal establishes direct communication with the relay terminal, the remote terminal may send an MBS monitoring request for the first MBS to the relay terminal, so as to instruct the relay terminal to acquire MBS data of the first MBS from the network device.
  • the remote terminal sends an MBS monitoring request to the relay terminal through the PC5 interface (direct communication interface).
  • the interception request includes the MBS session identifier of the first MBS.
  • the remote terminal may obtain the multicast session information of the first MBS from the core network device based on a service announcement (Service Announcement), and then obtain the MBS session identifier of the first MBS from the multicast session information.
  • Service Announcement a service announcement
  • the above monitoring request also includes one or more of the following:
  • the first data network name (Data Network Name, DNN) of the protocol data unit (Protocol Data Unit, PDU) session associated with the first MBS;
  • the first single network slice selection assistance information (Single Network Slice Selection Assistance Information, S-NSSAI) of the PDU session associated with the first MBS;
  • the first relay service code (Relay Service Code) associated with the first MBS.
  • the monitoring request includes the MBS session identifier of the first MBS, the first DNN and the first S-NSSAI of the PDU session associated with the first MBS.
  • the MBS monitoring request includes the first relay service code associated with the first MBS
  • the first relay service code associated with the first MBS is obtained in the following manner:
  • the first relay service code associated with the first MBS is obtained.
  • the MBS monitoring request includes the first DNN and the first S-NSSAI of the PDU session associated with the first MBS
  • the first DNN and the first S-NSSAI of the PDU session associated with the first MBS pass the following way to get:
  • the remote terminal obtains the multicast session information of the first MBS from the core network device based on the service announcement, and then obtains the first DNN and the first S-NSSAI of the PDU session associated with the first MBS from the multicast session information .
  • the remote terminal may also obtain the first service relay code from the core network device, and the first mapping relationship between the relay service code and the DNN and S-NSSAI of the PDU session, and then based on the first mapping relationship and the first The serving relay code determines the first DNN and the first S-NSSAI of the PDU session associated with the first MBS.
  • the relay terminal can obtain the first mapping relationship between the combination of DNN and S-NSSAI and the relay service code from the policy control function (Packet Control Function, PCF) network element.
  • Policy control Function Packet Control Function, PCF
  • Step S12 receiving the MBS data sent by the relay terminal.
  • the MBS data sent by the relay terminal may be received.
  • the remote terminal receives the MBS data sent by the relay terminal through the direct communication interface.
  • the above MBS data is sent by the relay terminal in a multicast or unicast manner.
  • the above receiving MBS data sent by the relay terminal includes:
  • the MBS data sent by the relay terminal in a multicast manner is acquired from the layer 2 corresponding to the first layer 2 group identifier.
  • the remote terminal may receive the MBS data sent by the relay terminal in a multicast manner through the direct communication interface based on the first layer 2 group identifier.
  • the above-mentioned receiving MBS data sent by the relay terminal includes:
  • the MBS data sent by the relay terminal in a unicast manner is acquired through the direct communication interface.
  • the remote terminal may receive the MBS data sent by the relay terminal in unicast mode through the direct communication interface.
  • the relay terminal may send a PDU session establishment request including the first DNN and the first S-NSSAI to the network device , to establish a PDU session. If the PDU session is established successfully, a multicast session join request including the MBS session identifier of the first MBS is sent to the network device, so as to join the MBS session of the first MBS. If it is determined to join the MBS session corresponding to the first MBS, the relay terminal may acquire the MBS data of the first MBS from the network device. Based on this, the above method also includes:
  • the MBS data acquisition failure information sent by the relay terminal is received, and the above MBS data acquisition failure information may be specifically used to indicate the failure to establish the PDU session, and/or the failure to join the MBS session of the first MBS.
  • the remote terminal may stop acquiring the MBS data of the first MBS from the relay terminal, or re-send a new MBS monitoring request to the relay terminal to acquire MBS data again.
  • FIG. 2 is a schematic flow chart of another method for transmitting multicast broadcast service data, which can be executed by a relay terminal. As shown in Figure 2, when the multicast broadcast service data transmission method is executed by the relay terminal, it specifically includes the following steps:
  • Step S21 receiving an MBS listening request sent by a remote terminal.
  • the relay terminal may receive the MBS monitoring request sent by the remote terminal through the direct communication interface.
  • the interception request includes the MBS session identifier of the first MBS.
  • the above monitoring request further includes at least one of the following:
  • a first relay service code associated with the first MBS is A first relay service code associated with the first MBS.
  • Step S22 acquiring MBS data of the first MBS from the network device based on the MBS monitoring request.
  • acquiring the MBS data of the first MBS from the network device based on the MBS listening request includes:
  • a PDU session establishment request including the first DNN and the first S-NSSAI Sending a PDU session establishment request including the first DNN and the first S-NSSAI to the network device, so as to establish the PDU session. If the PDU session is successfully established, a multicast session join request including the MBS session identifier of the first MBS is sent to the network device, so as to join the MBS session corresponding to the first MBS. If it is determined to join the MBS session corresponding to the first MBS, the MBS data of the first MBS is acquired from the network device.
  • the MBS monitoring request may include the MBS session identifier of the first MBS, the first DNN and the first S-NSSAI of the PDU session associated with the first MBS.
  • the MBS monitoring request may include the MBS session identifier of the first MBS and the first service relay code associated with the first MBS. Then the first DNN and the first S-NSSAI of the PDU session associated with the first MBS are obtained in the following manner:
  • the first relay service code included in the MBS monitoring request is obtained The first DNN and the first S-NSSAI of the corresponding PDU session.
  • MBS data acquisition failure information may be sent to the remote terminal, so that the remote terminal terminates obtaining the first MBS data from the relay terminal.
  • MBS data of one MBS or resend a new MBS monitoring request to the relay terminal to reacquire MBS data.
  • the above-mentioned MBS data acquisition failure information may include a cause value of failure to establish a PDU session and/or a cause value of failure to join an MBS session, so as to indicate MBS data acquisition failure based on the cause value.
  • the relay terminal when the relay terminal acquires the MBS data of the first MBS, it can be acquired in one or more of the following ways:
  • PtM Point to Multicast
  • the relay terminal obtains the MBS data from the network device through the cellular communication interface (Uu) interface.
  • the relay terminal obtains the MBS data from the network device through the PDU session. If the network device supports MBS data transmission, the relay terminal obtains the MBS data from the network device through PtP or PtM.
  • NG RAN next generation Radio Access Network
  • Step S23 sending the MBS data to the remote terminal.
  • the relay terminal may determine a transmission mode for providing the MBS data to the remote terminal, and then send the MBS data to the remote terminal according to the determined transmission mode.
  • the above-mentioned transmission mode includes a multicast mode or a unicast mode.
  • the relay terminal can send the MBS data to the remote terminal based on the direct communication interface.
  • the relay terminal may determine to provide MBS data to the remote terminal in a multicast manner, and the relay terminal may send an MBS monitoring response message to the remote terminal, the MBS monitoring response message includes the first layer 2 group identifier, the The first layer 2 group identifier is used to instruct the remote device to obtain the MBS data from the layer 2 corresponding to the first layer 2 group identifier, and then send the MBS data to the remote terminal based on the first layer 2 group identifier.
  • the relay terminal may send the MBS data to the remote terminal in a unicast manner, and send indication information to the remote terminal, where the indication information is used to instruct the MBS data to be sent in a unicast manner. Furthermore, the relay terminal can send the MBS data to the remote terminal in a unicast manner based on the direct communication interface.
  • the remote terminal when sending MBS data to the remote terminal based on any of the above methods, in order to reduce the network delay between the remote terminal and the relay terminal and avoid problems such as congestion, it can be determined that the The first quality of service parameter corresponding to the direct communication interface between them, and then based on the first quality of service parameter and the determined transmission mode, send the MBS data to the remote terminal.
  • the relay terminal can initiate a layer 2 connection modification process (Layer-2link) to establish a quality of service flow (QoS flow) corresponding to the first quality of service parameter, and based on the quality of service flow, send the MBS data.
  • Layer-2link layer 2 connection modification process
  • QoS flow quality of service flow
  • the relay terminal may determine the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal based on the manner in which the MBS data is obtained.
  • the relay terminal obtains the MBS data based on the PDU session, determine the second quality of service parameter corresponding to the cellular communication interface between the relay terminal and the network device, and the second quality of service parameter corresponding to the cellular communication interface and the direct communication interface For the second mapping relationship of the quality of service parameter, based on the second quality of service parameter and the second mapping relationship, determine the first quality of service parameter corresponding to the direct connection communication interface between the relay terminal and the remote terminal;
  • the relay terminal obtains the MBS data based on unicast or multicast, determine the first radio bearer corresponding to the network device sending the MBS data, and the third mapping relationship between the radio bearer and the QoS parameter corresponding to the direct communication interface, based on The first radio bearer and the third mapping relationship determine the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal.
  • different MBS data correspond to different quality of service parameters when they are transmitted through the direct connection communication interface. There is no need to guarantee the lowest bit rate, and different quality of service parameters need to be adopted under different timeliness requirements.
  • MBS data when different MBS data are sent through the cellular communication interface, different MBS data will also be sent based on different radio bearers. For example, for MBS data that needs to guarantee the lowest bit rate, it is necessary to adopt the guaranteed bit rate (Guaranteed Bit Rate, GBR) class Bearer transmission, otherwise use Non-GBR type bearer transmission. Based on this, after the relay terminal acquires the MBS data through the first radio bearer, based on the third mapping relationship between the pre-configured radio bearer and the QoS parameter corresponding to the direct communication interface and the first radio bearer, it can directly determine the acquired The corresponding first quality of service parameter when the received MBS data is transmitted through the direct communication interface.
  • GBR Guarantee Bit Rate
  • FIG. 3 is a schematic diagram of a sequence of sending MBS data to a remote UE in a multicast manner.
  • the remote UE establishes a PC5 connection with the relay UE before obtaining MBS data, and the remote UE obtains the MBS multicast session information from the core network device through the Service Announcement process defined in the existing protocol standard.
  • the above-mentioned MBS multicast session information includes the DNN and S-NSSAI of the PDU session associated with the MBS session, and the MBS session identifier (MBS Session ID).
  • the remote UE sends an MBS monitoring request to the relay UE, requesting the relay UE to obtain MBS data from the network device.
  • the MBS monitoring request includes MBS Session ID, DNN and S-NSSAI.
  • the MBS monitoring request includes an MBS Session ID and a first relay service code (Relay Service Code).
  • the Relay Service Code is determined by the remote UE according to the mapping relationship between [DNN, S-NSSAI] obtained from the PCF and the Relay Service Code.
  • the relay UE initiates the PDU session establishment process, and the relay UE provides the DNN and S-NSSAI to the network device. If the MBS monitoring request includes the Relay Service Code, the relay UE determines the DNN and S-NSSAI according to the mapping relationship between [DNN, S-NSSAI] and the Relay Service Code provided by the PCF.
  • the process of MBS session joining and MBS session establishment is initiated, and the MBS Session ID is provided to the network device to obtain MBS data after joining the MBS session.
  • the relay UE decides to forward the MBS data to the remote UE in the multicast mode on the PC5 interface, and the relay UE provides the Layer-2Group ID used to receive the MBS data to the remote UE.
  • the MBS monitoring response information includes the Layer-2Group ID.
  • the MBS monitoring response information may also include an MBS session identifier.
  • the relay UE After the relay UE receives the MBS data from the network device, the relay UE determines the QoS parameters corresponding to the PC5 interface. If the relay UE receives MBS data from the network device through the PDU session, the relay UE determines the QoS parameters corresponding to the PC5 interface according to the mapping relationship between the Uu QoS parameters provided by the PCF and the PC5 QoS parameters. If the relay UE receives the MBS data from the network device through PtP or PtM, the relay UE determines the QoS parameter corresponding to the PC5 according to the relationship between the radio bearer provided by the PCF and the QoS parameter corresponding to the PC5 interface.
  • the relay UE After receiving the multicast data from the network, the relay UE forwards the MBS data to the remote UE through the multicast mode on the PC5 interface and based on the QoS flow corresponding to the QoS parameters.
  • the remote UE can obtain the MBS data sent by the relay UE based on the received Layer-2Group ID.
  • FIG. 4 is a schematic diagram of a sequence of sending MBS data to a remote UE in a unicast manner.
  • the remote UE establishes a PC5 connection with the relay UE before obtaining MBS data, and the remote UE obtains the MBS multicast session information from the core network device through the Service Announcement process defined in the existing protocol standard.
  • the above-mentioned MBS multicast session information includes the DNN and S-NSSAI of the PDU session associated with the MBS session, and the MBS session identifier (MBS Session ID).
  • the remote UE sends an MBS monitoring request to the relay UE, requesting the relay UE to obtain MBS data from the network device.
  • the MBS monitoring request includes MBS Session ID, DNN and S-NSSAI.
  • the MBS monitoring request includes an MBS Session ID and a first relay service code (Relay Service Code).
  • the Relay Service Code is determined by the remote UE according to the mapping relationship between [DNN, S-NSSAI] obtained from the PCF and the Relay Service Code.
  • the relay UE initiates the PDU session establishment process, and the relay UE provides the DNN and S-NSSAI to the network device. If the MBS monitoring request includes the Relay Service Code, the relay UE determines the DNN and S-NSSAI according to the mapping relationship between [DNN, S-NSSAI] and the Relay Service Code provided by the PCF.
  • the process of MBS session joining and MBS session establishment is initiated, and the MBS Session ID is provided to the network device to obtain MBS data after joining the MBS session.
  • the MBS monitoring response information may also include an MBS session identifier.
  • the relay UE After the relay UE receives the MBS data from the network device, the relay UE determines the QoS parameters corresponding to the PC5 interface. If the relay UE receives MBS data from the network device through the PDU session, the relay UE determines the QoS parameters corresponding to the PC5 interface according to the mapping relationship between the Uu QoS parameters provided by the PCF and the PC5 QoS parameters. If the relay UE receives the MBS data from the network device through PtP or PtM, the relay UE determines the QoS parameter corresponding to the PC5 according to the relationship between the radio bearer provided by the PCF and the QoS parameter corresponding to the PC5 interface.
  • the relay UE After the relay UE receives the multicast data from the network, it initiates the Layer-2 link modification process to establish a new PC5QoS flow, and forwards the MBS data to the remote UE based on the new PC5QoS flow through unicast on the PC5 interface.
  • FIG. 5 is a schematic diagram of a sequence of PUD session establishment failure or MBS session joining failure.
  • the remote UE establishes a PC5 connection with the relay UE before obtaining MBS data, and the remote UE obtains the MBS multicast session information from the core network device through the Service Announcement process defined in the existing protocol standard.
  • the above-mentioned MBS multicast session information includes the DNN and S-NSSAI of the PDU session associated with the MBS session, and the MBS session identifier (MBS Session ID).
  • the remote UE sends an MBS monitoring request to the relay UE, requesting the relay UE to obtain MBS data from the network equipment.
  • the MBS monitoring request includes MBS Session ID, DNN and S-NSSAI.
  • the MBS monitoring request includes an MBS Session ID and a first relay service code (Relay Service Code).
  • the Relay Service Code is determined by the remote UE according to the mapping relationship between [DNN, S-NSSAI] provided by the PCF and the Relay Service Code.
  • the relay UE initiates the PDU session establishment process, and the relay UE provides the DNN and S-NSSAI to the network device. If the MBS monitoring request includes the Relay Service Code, the relay UE determines the DNN and S-NSSAI according to the mapping relationship between [DNN, S-NSSAI] and the Relay Service Code provided by the PCF. After the PDU session is successfully established, the relay UE initiates the MBS session join and MBS session establishment process, and provides the MBS Session ID to the network device to obtain MBS data after joining the MBS session.
  • the relay UE fails to establish a PDU session, such as the relay UE cannot establish a PDU session supporting DNN and S-NSSAI, and/or, the relay UE fails to join the MBS session, such as a session management function (Session Management Function, SMF) network element
  • SMF Session Management Function
  • the relay UE sends MBS data acquisition failure information to the remote UE to indicate the failure to establish the PDU session and/or indicate the failure to join the MBS session, so that the remote UE receives
  • the acquisition of MBS data may be stopped or the MBS monitoring request may be re-initiated.
  • the MBS data acquisition failure information may also include an MBS session identifier.
  • the MBS data acquisition failure information may also include a cause value of failure to establish a PDU session to indicate a failure to establish a PDU session, and may also include a cause value of a failure to join an MBS session to indicate a failure to join an MBS session.
  • the remote terminal can instruct the relay terminal to obtain MBS data from the network device by sending an MBS monitoring request to the relay terminal, and the relay terminal can send the acquisition request to the remote terminal through unicast or multicast.
  • the received MBS data so that the remote terminal obtains the MBS data through the relay terminal, which has high applicability.
  • FIG. 6 is a schematic structural diagram of a multicast broadcast service data transmission device.
  • the multicast broadcast service data transmission device includes:
  • the first sending unit 61 is configured to send an MBS monitoring request to the relay terminal, the above-mentioned MBS monitoring request includes the MBS session identifier of the first broadcast multicast service MBS, and the above-mentioned MBS monitoring request is used to instruct the above-mentioned relay terminal to obtain the above-mentioned MBS data of the first MBS;
  • the first receiving unit 62 is configured to receive the above-mentioned MBS data sent by the above-mentioned relay terminal;
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the above MBS monitoring request also includes one or more of the following:
  • the first relay service code associated with the above-mentioned first MBS is associated with the above-mentioned first MBS.
  • the above-mentioned first sending unit 61 is configured to:
  • the first relay service code associated with the first MBS is obtained.
  • the above-mentioned first sending unit 61 is configured to:
  • the first DNN and the first S-NSSAI of the PDU session associated with the first MBS are obtained.
  • the above-mentioned first receiving unit 62 is configured to:
  • the MBS data sent by the relay terminal in a multicast manner is acquired from the layer 2 corresponding to the first layer 2 group identifier.
  • the above-mentioned first receiving unit 62 is configured to:
  • the above MBS data sent by the above relay terminal in unicast mode is obtained through the direct connection communication interface.
  • the above-mentioned first receiving unit 62 is also used for:
  • the MBS data acquisition failure information sent by the relay terminal is received.
  • the multicast and broadcast service data transmission device can implement various processes implemented in the method embodiment in FIG. 1 , and details are not repeated here to avoid repetition.
  • FIG. 7 is another structural schematic diagram of a multicast broadcast service data transmission device.
  • the multicast broadcast service data transmission device includes:
  • the second receiving unit 71 is configured to receive an MBS monitoring request sent by a remote terminal, where the MBS monitoring request includes the MBS session identifier of the first MBS;
  • a data acquisition unit 72 configured to acquire the MBS data of the first MBS from the network device based on the MBS monitoring request;
  • the second sending unit 73 is configured to send the above-mentioned MBS data to the above-mentioned remote terminal;
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the above-mentioned data acquisition unit 72 is configured to:
  • the above-mentioned PDU session establishment request includes the first data network name DNN of the PDU session associated with the above-mentioned first MBS and the first single network slice selection auxiliary information S of the above-mentioned PDU session -NSSAI;
  • the PDU session is established successfully, then send a multicast session join request to the above-mentioned network equipment, and the above-mentioned multicast session join request includes the MBS session identifier of the above-mentioned first MBS;
  • the MBS data of the first MBS is acquired from the network device.
  • the above-mentioned second sending unit 73 is also used for:
  • the first DNN of the PDU session associated with the above-mentioned first MBS and the first S-NSSAI of the above-mentioned PDU session are carried in the above-mentioned MBS monitoring request;
  • the first DNN and the first S-NSSAI of the PDU session associated with the first MBS are obtained in the following manner:
  • the corresponding first relay service code included in the above-mentioned MBS monitoring request is obtained The first DNN and the first S-NSSAI of the PDU session.
  • the above-mentioned second sending unit 73 is configured to:
  • the above-mentioned transmission mode includes a multicast mode or a unicast mode
  • the above-mentioned second sending unit 73 is configured to:
  • the above-mentioned second sending unit 73 is configured to:
  • the above-mentioned relay terminal obtains the above-mentioned MBS data based on the PDU session, then determine the second quality of service parameter corresponding to the cellular communication interface between the relay terminal and the above-mentioned network equipment, and the service quality parameter corresponding to the cellular communication interface and the direct communication interface For the second mapping relationship of the corresponding quality of service parameter, based on the second quality of service parameter and the second mapping relationship, determine the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal;
  • the above-mentioned relay terminal acquires the above-mentioned MBS data based on unicast or multicast, determine the first radio bearer corresponding to the above-mentioned MBS data sent by the above-mentioned network equipment, and the third radio bearer corresponding to the quality of service parameter corresponding to the radio bearer and the direct communication interface.
  • the mapping relationship is based on the first radio bearer and the third mapping relationship, determining the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal.
  • the above-mentioned second sending unit 73 is configured to:
  • the above-mentioned second sending unit 73 is configured to:
  • the multicast and broadcast service data transmission device can implement various processes implemented in the method embodiment in FIG. 2 , and details are not repeated here to avoid repetition.
  • each functional module in each embodiment of the present application may be integrated into one processing module, each module may exist separately physically, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the above-mentioned integrated modules are realized in the form of software function modules and sold or used as independent products, they can be stored in a processor-readable storage medium.
  • the technical solution of the present application or all or part of the technical solution may be embodied in the form of a software product, the computer software product is stored in a storage medium, and includes several instructions to make a computer device (which can It is a personal computer, a server, or a network device, etc.) or a processor (processor) that executes all or part of the steps of the above-mentioned methods in 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 disc and other media that can store program codes. .
  • FIG. 8 is a schematic structural diagram of an electronic device.
  • the electronic device shown in FIG. 8 includes a memory 820, a transceiver 840, and a processor 810;
  • memory 820 for storing computer programs
  • Transceiver 840 for receiving and sending data under the control of processor 810;
  • the processor 810 is configured to read the computer program in the memory 820. When the electronic device is used as a remote terminal, the processor 810 is configured to perform the following operations:
  • the MBS monitoring request includes the MBS session identifier of the first MBS, and the MBS monitoring request is used to instruct the relay terminal to obtain the MBS data of the first MBS from the network device;
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • the above MBS monitoring request also includes one or more of the following:
  • the first relay service code associated with the above-mentioned first MBS is associated with the above-mentioned first MBS.
  • processor 810 is configured to:
  • the first relay service code associated with the first MBS is obtained.
  • processor 810 is configured to:
  • the first DNN and the first S-NSSAI of the PDU session associated with the first MBS are obtained.
  • processor 810 is configured to:
  • the MBS data sent by the relay terminal in a multicast manner is acquired from the layer 2 corresponding to the first layer 2 group identifier.
  • processor 810 is configured to:
  • the above MBS data sent by the above relay terminal in unicast mode is obtained through the direct connection communication interface.
  • processor 810 is configured to:
  • the MBS data acquisition failure information sent by the relay terminal is received.
  • the processor 810 is configured to perform the following operations:
  • the MBS monitoring request includes the MBS session identifier of the first MBS
  • the direct connection communication is established between the above-mentioned remote terminal and the above-mentioned relay terminal.
  • processor 810 is configured to:
  • the above-mentioned PDU session establishment request includes the first data network name DNN of the PDU session associated with the above-mentioned first MBS and the first single network slice selection auxiliary information S of the above-mentioned PDU session -NSSAI;
  • the PDU session is established successfully, then send a multicast session join request to the above-mentioned network equipment, and the above-mentioned multicast session join request includes the MBS session identifier of the above-mentioned first MBS;
  • the MBS data of the first MBS is acquired from the network device.
  • processor 810 is also used for:
  • the first DNN of the PDU session associated with the above-mentioned first MBS and the first S-NSSAI of the above-mentioned PDU session are carried in the above-mentioned MBS monitoring request;
  • the first DNN and the first S-NSSAI of the PDU session associated with the first MBS are obtained in the following manner:
  • the corresponding first relay service code included in the above-mentioned MBS monitoring request is obtained The first DNN and the first S-NSSAI of the PDU session.
  • processor 810 is configured to:
  • the above-mentioned transmission mode includes a multicast mode or a unicast mode
  • processor 810 is configured to:
  • processor 810 is configured to:
  • the above-mentioned relay terminal obtains the above-mentioned MBS data based on the PDU session, then determine the second quality of service parameter corresponding to the cellular communication interface between the relay terminal and the above-mentioned network equipment, and the service quality parameter corresponding to the cellular communication interface and the direct communication interface For the second mapping relationship of the corresponding quality of service parameter, based on the second quality of service parameter and the second mapping relationship, determine the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal;
  • the above-mentioned relay terminal acquires the above-mentioned MBS data based on unicast or multicast, determine the first radio bearer corresponding to the above-mentioned MBS data sent by the above-mentioned network equipment, and the third radio bearer corresponding to the quality of service parameter corresponding to the radio bearer and the direct communication interface.
  • the mapping relationship is based on the first radio bearer and the third mapping relationship, determining the first quality of service parameter corresponding to the direct communication interface between the relay terminal and the remote terminal.
  • processor 810 is configured to:
  • processor 810 is configured to:
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors 810 represented by the processor 810 and various circuits of the memory 820 represented by the memory 820 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • Bus interface 830 provides the interface.
  • Transceiver 840 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 when performing operations.
  • the user interface 850 may also be an interface capable of connecting externally and internally to required devices, and the connected devices include but not limited to keypads, monitors, speakers, microphones, joysticks, and the like.
  • the processor 810 can be a central processing device (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device , CPLD), the processor 810 may also adopt a multi-core architecture.
  • CPU central processing device
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the processor 810 is configured to execute any one of the above-mentioned methods according to the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 820 .
  • the processor 810 and the memory 820 may also be arranged physically separately.
  • An embodiment of the present application also provides a non-transitory computer-readable storage medium, the above-mentioned non-transitory computer-readable storage medium stores a computer program, and when the above-mentioned computer program is run by the above-mentioned processor, the above-mentioned processor executes multicast A broadcasting service data transmission method.
  • the aforementioned non-transitory computer-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage Such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

本申请涉及移动通信技术领域,公开了一种组播广播业务数据传输方法、装置、设备以及存储介质,该方法包括:向中继终端发送广播组播业务MBS监听请求,MBS监听请求包括第一MBS的MBS会话标识,MBS监听请求用于指示中继终端从网络设备获取第一MBS的MBS数据;接收中继终端发送的MBS数据;其中,远端终端与中继终端之间建立直连通信。

Description

组播广播业务数据传输方法、装置、设备以及存储介质
相关申请的交叉引用
本申请要求于2021年08月16日在中国国家知识产权局提交的中国专利申请No.202110938738.2的优先权,其公开内容通过引用整体并入本文。
技术领域
本申请涉及移动通信技术领域,尤其涉及一种组播广播业务数据传输方法、装置、设备以及存储介质。
背景技术
临近业务(Proximity Services,ProSe)中的一个重要的场景是远端终端(Remote)通过中继(Relay)终端与网络进行通信以获取相关服务,目前,远端终端可通过中继终端从网络设备获取单播业务数据。
但是远端终端如何通过中继终端从网络设备获取组播广播业务(Multicast Broadcast Service,MBS)数据仍是尚未解决的问题。
发明内容
本申请实施例提供一种组播广播业务数据传输方法、装置、设备以及存储介质,可使远端终端通过中继终端从网络设备获取MBS数据。
第一方面,本申请实施例提供了一种组播广播业务MBS数据传输方法,应用于远端终端,该方法包括:
向中继终端发送MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识,上述MBS监听请求用于指示上述中继终端从网络设备获取上述第一MBS的MBS数据;
接收上述中继终端发送的上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
第二方面,本申请实施例还提供一种组播广播业务MBS数据传输方法,该方法包括:
接收远端终端发送的MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识;
基于上述MBS监听请求从网络设备获取上述第一MBS的MBS数据;
向上述远端终端发送上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
第三方面,本申请实施例还提供一种远端终端,该远端终端包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,上述处理器执行上述计算机程序时实现第一方面所提供的组播广播业务数据传输方法。
第四方面,本申请实施例还提供一种中继终端,该远端终端包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,上述处理器执行上述计算机程序时实现第二方面所提供的组播广播业务数据传输方法。
第五方面,本申请实施例还提供一种组播广播业务MBS数据传输装置,该装置包括:
第一发送单元,用于向中继终端发送MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识,上述MBS监听请求用于指示上述中继终端从网络设备获取上述第一MBS的MBS数据;
第一接收单元,用于接收上述中继终端发送的上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
第六方面,本申请实施例还提供一种组播广播业务MBS数据传输装置,该装置包括:
第二接收单元,用于接收远端终端发送的MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识;
数据获取单元,用于基于上述MBS监听请求从网络设备获取上述第一MBS的MBS数据;
第二发送单元,用于向上述远端终端发送上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
第七方面,本申请实施例还提供一种非暂时性计算机可读存储介质,该非暂时性计算机可读存储介质上存储有计算机程序,上述计算机程序被处理器执行时实现如上方法中的步骤。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对本申请实施例的描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是组播广播业务数据传输方法的一流程示意图;
图2是组播广播业务数据传输方法的另一流程示意图;
图3是通过组播方式向远端UE发送MBS数据的时序示意图;
图4是通过单播方式向远端UE发送MBS数据的时序示意图;
图5是PUD会话建立失败或MBS会话加入失败的时序示意图;
图6是组播广播业务数据传输装置的一结构示意图;
图7是组播广播业务数据传输装置的另一结构示意图;
图8是电子设备的结构示意图。
具体实施方式
本申请实施例中术语“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上,其它量词与之类似。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,并不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例提供了一种组播广播业务数据传输方法、装置、设备以及存储介质,用以实现从网络获取组播广播业务数据。
其中,方法和装置是基于同一申请构思的,由于方法和装置解决问题的原理相似,因此装置和方法的实施可以相互参见,重复之处不再赘述。
此外,本申请实施例的技术方案可以适用于多种***,尤其是5G***。例如适用的***可以是全球移动通讯(global system of mobile communication,GSM)***、码分多址(code division multiple access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)***、长期演进(long term evolution,LTE)***、LTE频分双工(frequency division duplex,FDD)***、LTE时分双工(time division duplex,TDD)***、高级长期演进(long term evolution advanced,LTE-A)***、通用移动***(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)***、5G新空口(New Radio,NR)***等。这多种***中均包括终端设备和网络设备。***中还可以包括核心网部分,例如演进的分组***(Evolved Packet System,EPS)、5G***(5GS)等。
本申请实施例涉及的远端终端和中继终端,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的***中,终端设备的名称可能也不相同,例如在5G***中,终端设备可以称为用户设备(User Equipment,UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol, SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本申请实施例中并不限定。
本申请实施例涉及的网络设备,可以是基站,该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol,IP)分组进行相互更换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如,本申请实施例涉及的网络设备可以是GSM***或CDMA中的网络设备(Base Transceiver Station,BTS),也可以是WCDMA中的网络设备(NodeB),还可以是LTE***中的演进型网络设备(evolutional Node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB),也可以是家庭演进基站(Home evolved Node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本申请实施例中并不限定。在一些网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点和分布单元(distributed unit,DU)节点,集中单元和分布单元也可以地理上分开布置。
网络设备与中继终端之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输,MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量,MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO,也可以是分集传输或预编码传输或波 束赋形传输等。
参见图1,图1是组播广播业务数据传输方法的一流程示意图,该方案可由远端终端执行。如图1所示,组播广播业务数据传输方法在由远端终端执行时,具体包括如下步骤:
步骤S11、向中继终端发送MBS监听请求,MBS监听请求用于指示中继终端从网络设备获取第一MBS的MBS数据。
当远端终端处于网络覆盖范围之外,或者与网络设备的通信接口的信号质量较差导致无法与网络设备直接进行连接时,可通过中继终端与网络设备连接。在远端终端和中继终端建立直连通信的情况下,远端终端可向中继终端发送针对第一MBS的MBS监听请求,以指示中继终端从网络设备获取第一MBS的MBS数据。
其中,远端终端通过PC5接口(直连通信接口)向中继终端发送MBS监听请求。
在一些可行的实施方式中,上述监听请求包括第一MBS的MBS会话标识。
其中,远端终端可基于服务宣告(Service Announcement)的方式从核心网设备获取到第一MBS的组播会话信息,进而从该组播会话信息获取第一MBS的MBS会话标识。
在一些可行的实施方式中,上述监听请求还包括以下一项或者多项:
所述第一MBS相关联的协议数据单元(Protocol Data Unit,PDU)会话的第一数据网络名称(Data Network Name,DNN);
所述第一MBS相关联的PDU会话的第一单一网络切片选择辅助信息(Single Network Slice Selection Assistance Information,S-NSSAI);
所述第一MBS相关联的第一中继服务代码(Relay Service Code)。
作为一示例,上述监听请求包括第一MBS的MBS会话标识、与第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
可选地,若MBS监听请求中包括第一MBS相关联的第一服务中继代码,则第一MBS相关联的第一中继服务代码通过以下方式得到:
从核心网设备中获取中继服务代码与PDU会话的DNN和S-NSSAI之间的第一映射关系;
根据第一映射关系和从中继终端中获取的第一DNN以及第一S-NSSAI,得到第一MBS相关联的第一中继服务代码。
可选地,若MBS监听请求中包括第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI,则第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
远端终端基于服务宣告的方式从核心网设备获取到第一MBS的组播会话信息,进而从该组播会话信息获取与第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
或者,远端终端还可从核心网设备获取第一服务中继代码,以及中继服务代码与PDU会话的DNN和S-NSSAI之间的第一映射关系,进而基于第一映射关系和第一服务中继代码确定第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
其中,中继终端可从策略控制功能(Packet Control Function,PCF)网元获取DNN和S-NSSAI组合与中继服务代码的第一映射关系。
步骤S12、接收中继终端发送的MBS数据。
在一些可行的实施方式中,在向中继终端发送MBS监听请求,且中继终端获取到MBS数据之后,可接收中继终端发送的MBS数据。
具体地,远端终端通过直连通信接口接收中继终端发送的MBS数据。
具体地,上述MBS数据由中继终端通过组播方式或者单播方式发送。
在一些可行的实施方式中,若上述MBS数据由中继终端通过组播方式发送,上述接收中继终端发送的MBS数据包括:
接收中继终端发送的第一层2组标识;
根据第一层2组标识,从第一层2组标识对应的层2中获取中继终端通过组播方式发送的MBS数据。
作为一示例,远端终端可基于第一层2组标识,通过直连通信接口接收中继终端通过组播方式发送的MBS数据。
在一些可行的实施方式中,若上述MBS数据由中继终端通过单播方式发送,上述接收中继终端发送的MBS数据包括:
接收中继终端发送的指示信息,指示信息用于指示通过单播方式发送所述MBS数据;
根据指示信息,通过直连通信接口获取中继终端通过单播方式发送的MBS数据。
即远端终端在接收到中继终端发送的、用于指示通过单播方式发送MBS的指示信息后,可通过直连通信接口接收中继终端通过单播方式发送的MBS数据。
在一些可行的实施方式中,中继终端在接收到包括MBS会话标识、第一DNN和第一S-NSSAI之后,可向网络设备发送包括第一DNN和第一S-NSSAI的PDU会话建立请求,以建立PDU会话。若PDU会话建立成功,则向网络设备发送包括第一MBS的MBS会话标识的组播会话加入请求,以加入第一MBS的MBS会话。若确定加入第一MBS对应的MBS会话,中继终端则可从网络设备获取第一MBS的MBS数据。基于此,上述方法还包括:
接收中继终端发送的MBS数据获取失败信息,上述MBS数据获取失败信息可具体用于指示建立PDU会话失败,和/或,加入第一MBS的MBS会话失败。
进一步地,远端终端在接收到上述MBS数据获取失败信息之后,可终止向中继终端获取第一MBS的MBS数据,或者重新向中继终端发送新的MBS监听请求以重新获取MBS数据。
参见图2,图2是组播广播业务数据传输方法的另一流程示意图,该方案可由中继终端执行。如图2所示,组播广播业务数据传输方法在由中继终端执行时,具体包括如下步骤:
步骤S21、接收远端终端发送的MBS监听请求。
在一些可行的实施方式中,在远端终端和中继终端建立直连通信的情况下,中继终端可通过直连通信接口接收远端终端发送MBS监听请求。
在一些可行的实施方式中,上述监听请求包括第一MBS的MBS会话标识。
在一些可行的实施方式中,上述监听请求还包括以下至少一项:
与所述第一MBS相关联的PDU会话的第一DNN;
与所述第一MBS相关联的PDU会话的第一S-NSSAI;
与所述第一MBS相关联的第一中继服务代码。
步骤S22、基于MBS监听请求从网络设备获取第一MBS的MBS数据。
在一些可行的实施方式中,基于MBS监听请求从网络设备获取第一MBS的MBS数据,包括:
基于MBS监听请求确定第一MBS的MBS会话标识、与第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI;
向所述网络设备发送包含第一DNN和第一S-NSSAI的PDU会话建立请求,以建立PDU会话。若PDU会话建立成功,则向网络设备发送包括第一MBS的MBS会话标识的组播会话加入请求,以加入第一MBS对应的MBS会话。若确定加入第一MBS对应的MBS会话,则从网络设备获取第一MBS的MBS数据。
其中,MBS监听请求可包括第一MBS的MBS会话标识、与第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
其中,MBS监听请求可包括第一MBS的MBS会话标识和第一MBS相关联的第一服务中继代码。则第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
根据从核心网设备中获取的中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系,得到与所述MBS监听请求中包括的第一中继服务代码相对应的PDU会话的第一DNN和第一S-NSSAI。
可选地,若中继终端建立PDU会话失败,和/或,加入第一MBS的MBS会话失败,可向远端终端发送MBS数据获取失败信息,以使远端终端终止向中继终端获取第一MBS的MBS数据,或者重新向中继终端发 送新的MBS监听请求以重新获取MBS数据。
其中,上述MBS数据获取失败信息可包括建立PDU会话失败的原因值和/或加入MBS会话失败的原因值,以基于原因值指示MBS数据获取失败。
在一些可行的实施方式中,中继终端在获取第一MBS的MBS数据时,可通过以下一项或者多项方式获取:
基于PDU会话从网络设备获取;
基于单播(Point to Point,PtP)方式从网络设备获取;
基于组播(Point to Multicast,PtM)方式从网络设备获取。
其中,中继终端通过蜂窝通信接口(Uu)接口从网络设备获取MBS数据。
其中,若网络设备(如下一代无线接入网(next generation Radio Access Network,NG RAN))不支持MBS数据传输,则中继终端通过PDU会话从网络设备获取MBS数据。如果网络设备支持MBS数据传输,则中继终端通过PtP或者PtM方式从网络设备获取MBS数据。
步骤S23、向远端终端发送MBS数据。
在一些可行的实施方式中,中继终端在获取MBS数据之后,可确定向远端终端提供MBS数据的传输方式,进而按照确定的传输方式,向远端终端发送MBS数据。
其中,上述传输方式包括组播方式或者单播方式。
具体地,中继终端可基于直连通信接口向远端终端发送MBS数据。
可选地,中继终端可确定采用组播方式向远端终端提供MBS数据,中继终端可向所述远端终端发送MBS监听响应消息,MBS监听响应消息包括第一层2组标识,该第一层2组标识用于指示远端设备从第一层2组标识对应的层2中获取MBS数据,进而基于第一层2组标识向远端终端发送所述MBS数据。
可选地,中继终端可采用单播方式向远端终端发送MBS数据,并向远端终端发送指示信息,该指示信息用于指示通过单播方式发送MBS数据。进而中继终端可基于直连通信接口通过单播方式向远端终端发送MBS 数据。
在一些可行的实施方式中,在基于上述任一项方式向远端终端发送MBS数据时,为降低远端终端和中继终端之间的网络延迟,避免阻塞等问题,可确定与远端终端之间的直连通信接口所对应的第一服务质量参数,进而基于第一服务质量参数和确定的传输方式,向远端终端发送MBS数据。
其中,中继终端可发起层2连接修改过程(Layer-2link)以建立第一服务质量参数对应的服务质量流(QoS流),基于该服务质量流,通过确定的传输方式向远端终端发送MBS数据。
在一些可行的实施方式中,中继终端可基于MBS数据的获取方式,确定中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数。
若中继终端基于PDU会话获取MBS数据,则确定中继终端与网络设备之间的蜂窝通信接口通对应的第二服务质量参数、以及蜂窝信接口对应的服务质量参数与直连通信接口对应的服务质量参数的第二映射关系,基于第二服务质量参数和第二映射关系,确定中继终端和远端终端之间的直连通信接口对应的第一服务质量参数;
若中继终端基于单播方式或者组播方式获取MBS数据,则确定网络设备发送MBS数据对应的第一无线承载、以及无线承载和直连通信接口对应的服务质量参数的第三映射关系,基于第一无线承载和第三映射关系,确定中继终端和远端终端之间的直连通信接口对应的第一服务质量参数。
其中,不同的MBS数据在通过直连通信接口传输时所对应的服务质量参数不同,如时效性要求较高的MBS数据在传输时需要保证最低的比特速率,时效性要求较低的MBS数据则不需要保证最低的比特速率,在不同的时效性要求下需要采用不同的服务质量参数。
并且,不同的MBS数据在通过蜂窝通信接口发送时,不同的MBS数据同样会基于不同的无线承载发送,如对需要保证最低比特速率的MBS数据需要采用保证比特速率(Guaranteed Bit Rate,GBR)类承载发送,否 则采用Non-GBR类型承载发送。基于此,中继终端通过第一无线承载获取到MBS数据之后,基于预配置的无线承载与通信直连接口对应的服务质量参数之间的第三映射关系以及第一无线承载,可直接确定获取到的MBS数据在通过直连通信接口传输时对应的第一服务质量参数。
下面结合具体示例对组播广播业务数据传输方法进行进一步说明。
示例一:
参见图3,图3是通过组播方式向远端UE发送MBS数据的时序示意图。
远端UE在获取MBS数据之前与中继UE建立PC5连接,远端UE通过现有的协议标准中定义的Service Announcement过程从核心网设备获取到MBS组播会话信息。
其中,上述MBS组播会话信息包括与MBS会话关联的PDU会话的DNN和S-NSSAI,以及MBS会话标识(MBS Session ID)。
远端UE向中继UE发送MBS监听请求,请求中继UE从网络设备获取MBS数据。
其中,该MBS监听请求中包含MBS Session ID、DNN和S-NSSAI。或者,该MBS监听请求中包含MBS Session ID和第一中继服务代码(Relay Service Code)。
其中,Relay Service Code是远端UE根据从PCF获取的的[DNN,S-NSSAI]和Relay Service Code的映射关系确定。
中继UE发起PDU会话建立过程,中继UE向网络设备提供DNN和S-NSSAI。如果MBS监听请求中包括Relay Service Code,中继UE根据PCF提供的[DNN,S-NSSAI]和Relay Service Code的映射关系确定DNN和S-NSSAI。
若建立PDU会话成功且加入MBS会话成功,则发起MBS会话加入和MBS会话建立过程,并向网络设备提供MBS Session ID,以在加入MBS会话后获取MBS数据。中继UE决定在PC5接口上使用组播方式向远端UE转发MBS数据,中继UE向远端UE提供接收MBS数据使用的Layer- 2Group ID,如向远端UE发送MBS监听响应信息,该MBS监听响应信息中包括Layer-2Group ID。
其中,该MBS监听响应信息还可包括MBS会话标识。
中继UE从网络设备接收到MBS数据后,中继UE确定PC5接口对应的QoS参数。如果中继UE是通过PDU会话从网络设备接收到的MBS数据,中继UE根据PCF提供的Uu QoS参数和PC5QoS参数的映射关系确定PC5接口对应的QoS参数。如果中继UE是通过PtP或PtM方式从网络设备接收到MBS数据,中继UE根据PCF提供的无线承载和PC5接口对应的QoS参数的关系确定PC5对应的QoS参数。
中继UE从网络接收到组播数据后,在PC5接口通过组播方式,并基于QoS参数对应的QoS流将MBS数据转发给远端UE。
远端UE可基于接收到的Layer-2Group ID获取中继UE发送的MBS数据。
示例二:
参见图4,图4是通过单播方式向远端UE发送MBS数据的时序示意图。
远端UE在获取MBS数据之前与中继UE建立PC5连接,远端UE通过现有的协议标准中定义的Service Announcement过程从核心网设备获取到MBS组播会话信息。
其中,上述MBS组播会话信息包括与MBS会话关联的PDU会话的DNN和S-NSSAI,以及MBS会话标识(MBS Session ID)。
远端UE向中继UE发送MBS监听请求,请求中继UE从网络设备获取MBS数据。
其中,该MBS监听请求中包含MBS Session ID、DNN和S-NSSAI。或者,该MBS监听请求中包含MBS Session ID和第一中继服务代码(Relay Service Code)。
其中,Relay Service Code是远端UE根据从PCF获取的[DNN,S- NSSAI]和Relay Service Code的映射关系确定。
中继UE发起PDU会话建立过程,中继UE向网络设备提供DNN和S-NSSAI。如果MBS监听请求中包括Relay Service Code,中继UE根据PCF提供的[DNN,S-NSSAI]和Relay Service Code的映射关系确定DNN和S-NSSAI。
若建立PDU会话成功且加入MBS会话成功,则发起MBS会话加入和MBS会话建立过程,并向网络设备提供MBS Session ID,以在加入MBS会话后获取MBS数据。其中,该MBS监听响应信息还可包括MBS会话标识。
中继UE从网络设备接收到MBS数据后,中继UE确定PC5接口对应的QoS参数。如果中继UE是通过PDU会话从网络设备接收到的MBS数据,中继UE根据PCF提供的Uu QoS参数和PC5QoS参数的映射关系确定PC5接口对应的QoS参数。如果中继UE是通过PtP或PtM方式从网络设备接收到MBS数据,中继UE根据PCF提供的无线承载和PC5接口对应的QoS参数的关系确定PC5对应的QoS参数。
中继UE从网络接收到组播数据后,发起Layer-2link修改过程建立新的PC5QoS流,并在PC5接口通过单播方式,基于新的PC5QoS流将MBS数据转发给远端UE。
示例三:
参见图5,图5是PUD会话建立失败或MBS会话加入失败的时序示意图。
远端UE在获取MBS数据之前与中继UE建立PC5连接,远端UE通过现有的协议标准中定义的Service Announcement过程从核心网设备获取到MBS组播会话信息。
其中,上述MBS组播会话信息包括与MBS会话关联的PDU会话的DNN和S-NSSAI,以及MBS会话标识(MBS Session ID)。
远端UE向中继UE发送MBS监听请求,请求中继UE从网络设备获 取MBS数据。
其中,该MBS监听请求中包含MBS Session ID、DNN和S-NSSAI。或者,该MBS监听请求中包含MBS Session ID和第一中继服务代码(Relay Service Code)。
其中,Relay Service Code是远端UE根据PCF提供的[DNN,S-NSSAI]和Relay Service Code的映射关系确定。
中继UE发起PDU会话建立过程,中继UE向网络设备提供DNN和S-NSSAI。如果MBS监听请求中包括Relay Service Code,中继UE根据PCF提供的[DNN,S-NSSAI]和Relay Service Code的映射关系确定DNN和S-NSSAI。在PDU会话建立成功后,中继UE发起MBS会话加入和MBS会话建立过程,并向网络设备提供MBS Session ID,以在加入MBS会话后获取MBS数据。
若中继UE建立PDU会话失败,如中继UE无法建立支持DNN和S-NSSAI的PDU会话,和/或,中继UE加入MBS会话失败,如会话管理功能(Session Management Function,SMF)网元对中继UE的MBS会话的加入请求授权失败,中继UE通过向远端UE发送MBS数据获取失败信息,以指示建立PDU会话失败和/或指示加入MBS会话失败,从而远端UE在接收到第一信息后可停止获取MBS数据或者重新发起MBS监听请求。
其中,该MBS数据获取失败信息还可包括MBS会话标识。
其中,该MBS数据获取失败信息还可包括建立PDU会话失败的原因值,以指示建立PDU会话失败,也可包括加入MBS会话失败的原因值,以指示加入MBS会话失败。
在本申请实施例中,远端终端可通过向中继终端发送MBS监听请求来指示中继终端从网络设备获取MBS数据,中继终端可通过单播或者组播等方式向远端终端发送获取到的MBS数据,从而实现远端终端通过中继终端获取MBS数据,适用性高。
参见图6,图6是组播广播业务数据传输装置的一结构示意图。组播 广播业务数据传输装置包括:
第一发送单元61,用于向中继终端发送MBS监听请求,上述MBS监听请求包括第一广播组播业务MBS的MBS会话标识,上述MBS监听请求用于指示上述中继终端从网络设备获取上述第一MBS的MBS数据;
第一接收单元62,用于接收上述中继终端发送的上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
可选地,上述MBS监听请求还包括以下一项或者多项:
上述第一MBS相关联的协议数据单元PDU会话的第一数据网络名称DNN;
上述第一MBS相关联的PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
上述第一MBS相关联的第一中继服务代码。
可选地,上述第一发送单元61,用于:
从核心网设备中获取中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系;
根据上述第一映射关系和从上述中继终端中获取的上述第一DNN、上述第一S-NSSAI,得到上述第一MBS相关联的第一中继服务代码。
可选地,上述第一发送单元61,用于:
从核心网设备中获取中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系;
根据上述第一映射关系和从上述中继终端中获取的上述第一中继服务代码,得到上述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
可选地,上述第一接收单元62,用于:
接收上述中继终端发送的第一层2组标识;
根据上述第一层2组标识,从上述第一层2组标识对应的层2中获取上述中继终端通过组播方式发送的上述MBS数据。
可选地,上述第一接收单元62,用于:
接收上述中继终端发送的指示信息,上述指示信息用于指示通过单播方式发送上述MBS数据;
根据上述指示信息,通过直连通信接口获取上述中继终端通过单播方式发送的上述MBS数据。
可选地,上述第一接收单元62,还用于:
接收上述中继终端发送的MBS数据获取失败信息。
组播广播业务数据传输装置能够实现图1的方法实施例中实现的各个过程,为避免重复,这里不再赘述。
参见图7,图7是组播广播业务数据传输装置的另一结构示意图。组播广播业务数据传输装置包括:
第二接收单元71,用于接收远端终端发送的MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识;
数据获取单元72,用于基于上述MBS监听请求从网络设备获取上述第一MBS的MBS数据;
第二发送单元73,用于向上述远端终端发送上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
可选地,上述数据获取单元72,用于:
向上述网络设备发送协议数据单元PDU会话建立请求,上述PDU会话建立请求中包含上述第一MBS相关联的PDU会话的第一数据网络名称DNN以及上述PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
若PDU会话建立成功,则向上述网络设备发送组播会话加入请求,上述组播会话加入请求中包含上述第一MBS的MBS会话标识;
若确定加入上述第一MBS对应的MBS会话成功,则从网络设备获取上述第一MBS的MBS数据。
可选地,上述第二发送单元73,还用于:
若上述PDU会话建立失败,和/或,加入上述第一MBS的MBS会话失败,则向上述远端终端发送MBS数据获取失败信息。
可选地,上述第一MBS相关联的PDU会话的第一DNN以及上述 PDU会话的第一S-NSSAI携带在上述MBS监听请求中;
或者,
上述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
根据从核心网设备中获取的中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系,得到与上述MBS监听请求中包括的第一中继服务代码相对应的PDU会话的第一DNN和第一S-NSSAI。
可选地,上述第二发送单元73,用于:
确定向上述远端终端提供上述MBS数据的传输方式,上述传输方式包含组播方式或者单播方式;
按照确定的上述传输方式,向上述远端终端发送上述MBS数据。
可选地,上述第二发送单元73,用于:
确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数;
基于上述第一服务质量参数和确定的上述传输方式,向上述远端终端发送上述MBS数据。
可选地,上述第二发送单元73,用于:
若上述中继终端基于PDU会话获取上述MBS数据,则确定中继终端与上述网络设备之间的蜂窝通信接口对应的第二服务质量参数、以及蜂窝通信接口对应的服务质量参数与直连通信接口对应的服务质量参数的第二映射关系,基于上述第二服务质量参数和上述第二映射关系,确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数;
若上述中继终端基于单播方式或者组播方式获取上述MBS数据,则确定上述网络设备发送上述MBS数据对应的第一无线承载、以及无线承载和直连通信接口对应的服务质量参数的第三映射关系,基于上述第一无线承载和上述第三映射关系,确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数。
可选地,上述第二发送单元73,用于:
确定采用组播方式向上述远端终端提供上述MBS数据;
向上述远端终端发送MBS监听响应消息,上述MBS监听响应消息中包含第一层2组标识;
基于上述第一层2组标识,通过组播方式向上述远端终端发送上述MBS数据。
可选地,上述第二发送单元73,用于:
确定采用单播方式向上述远端终端发送上述MBS数据;
向上述远端终端发送指示信息,上述指示信息用于指示通过单播方式发送上述MBS数据;
在直连通信接口上通过单播方式向上述远端终端发送上述MBS数据。
组播广播业务数据传输装置能够实现图2的方法实施例中实现的各个过程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中对模块(单元)的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本申请各个实施例中的各功能模块可以集成在一个处理模块中,也可以是各个模块单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。
上述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个处理器可读取存储介质中。基于这样的理解,本申请的技术方案或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例上述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是,根据本申请实施例的上述装置,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本 实施例中与方法实施例相同的部分及有益效果进行具体赘述。
参见图8,图8是电子设备的结构示意图。图8所示的电子设备包括存储器820、收发机840、处理器810;
存储器820,用于存储计算机程序;
收发机840,用于在处理器810的控制下接收和发送数据;
处理器810,用于读取上述存储器820中的计算机程序。当该电子设备作为远端终端时,处理器810,用于执行以下操作:
向中继终端发送MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识,上述MBS监听请求用于指示上述中继终端从网络设备获取上述第一MBS的MBS数据;
接收上述中继终端发送的上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
可选地,上述MBS监听请求还包括以下一项或者多项:
上述第一MBS相关联的协议数据单元PDU会话的第一数据网络名称DNN;
上述第一MBS相关联的PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
上述第一MBS相关联的第一中继服务代码。
可选地,上述处理器810,用于:
从核心网设备中获取中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系;
根据上述第一映射关系和从上述中继终端中获取的上述第一DNN、上述第一S-NSSAI,得到上述第一MBS相关联的第一中继服务代码。
可选地,上述处理器810,用于:
从核心网设备中获取中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系;
根据上述第一映射关系和从上述中继终端中获取的上述第一中继服务代码,得到上述第一MBS相关联的PDU会话的第一DNN和第一S- NSSAI。
可选地,上述处理器810,用于:
接收上述中继终端发送的第一层2组标识;
根据上述第一层2组标识,从上述第一层2组标识对应的层2中获取上述中继终端通过组播方式发送的上述MBS数据。
可选地,上述处理器810,用于:
接收上述中继终端发送的指示信息,上述指示信息用于指示通过单播方式发送上述MBS数据;
根据上述指示信息,通过直连通信接口获取上述中继终端通过单播方式发送的上述MBS数据。
可选地,上述处理器810,用于:
接收上述中继终端发送的MBS数据获取失败信息。
当该电子设备作为中继终端时,处理器810,用于执行以下操作:
接收远端终端发送的MBS监听请求,上述MBS监听请求包括第一MBS的MBS会话标识;
基于上述MBS监听请求从网络设备获取上述第一MBS的MBS数据;
向上述远端终端发送上述MBS数据;
其中,上述远端终端与上述中继终端之间建立直连通信。
可选地,上述处理器810,用于:
向上述网络设备发送协议数据单元PDU会话建立请求,上述PDU会话建立请求中包含上述第一MBS相关联的PDU会话的第一数据网络名称DNN以及上述PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
若PDU会话建立成功,则向上述网络设备发送组播会话加入请求,上述组播会话加入请求中包含上述第一MBS的MBS会话标识;
若确定加入上述第一MBS对应的MBS会话成功,则从网络设备获取上述第一MBS的MBS数据。
可选地,上述处理器810,还用于:
若上述PDU会话建立失败,和/或,加入上述第一MBS的MBS会话失败,则向上述远端终端发送MBS数据获取失败信息。
可选地,上述第一MBS相关联的PDU会话的第一DNN以及上述PDU会话的第一S-NSSAI携带在上述MBS监听请求中;
或者,
上述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
根据从核心网设备中获取的中继服务代码与PDU会话的DNN、上述PDU会话的S-NSSAI之间的第一映射关系,得到与上述MBS监听请求中包括的第一中继服务代码相对应的PDU会话的第一DNN和第一S-NSSAI。
可选地,上述处理器810,用于:
确定向上述远端终端提供上述MBS数据的传输方式,上述传输方式包含组播方式或者单播方式;
按照确定的上述传输方式,向上述远端终端发送上述MBS数据。
可选地,上述处理器810,用于:
确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数;
基于上述第一服务质量参数和确定的上述传输方式,向上述远端终端发送上述MBS数据。
可选地,上述处理器810,用于:
若上述中继终端基于PDU会话获取上述MBS数据,则确定中继终端与上述网络设备之间的蜂窝通信接口对应的第二服务质量参数、以及蜂窝通信接口对应的服务质量参数与直连通信接口对应的服务质量参数的第二映射关系,基于上述第二服务质量参数和上述第二映射关系,确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数;
若上述中继终端基于单播方式或者组播方式获取上述MBS数据,则确定上述网络设备发送上述MBS数据对应的第一无线承载、以及无线承载和直连通信接口对应的服务质量参数的第三映射关系,基于上述第一无 线承载和上述第三映射关系,确定上述中继终端和上述远端终端之间的直连通信接口对应的第一服务质量参数。
可选地,上述处理器810,用于:
确定采用组播方式向上述远端终端提供上述MBS数据;
向上述远端终端发送MBS监听响应消息,上述MBS监听响应消息中包含第一层2组标识;
基于上述第一层2组标识,通过组播方式向上述远端终端发送上述MBS数据。
可选地,上述处理器810,用于:
确定采用单播方式向上述远端终端发送上述MBS数据;
向上述远端终端发送指示信息,上述指示信息用于指示通过单播方式发送上述MBS数据;
在直连通信接口上通过单播方式向上述远端终端发送上述MBS数据。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器810代表的一个或多个处理器810和存储器820代表的存储器820的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口830提供接口。收发机840可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器810负责管理总线架构和通常的处理,存储器820可以存储处理器810在执行操作时所使用的数据。用户接口850还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器810可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器810也可以采用多核架构。
处理器810通过调用存储器820存储的计算机程序,用于按照获得的可执行指令执行根据本申请实施例的任一上述方法。处理器810与存储器820也可以物理上分开布置。
在此需要说明的是,根据本申请实施例的上述装置,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本申请的实施例还提供了一种非暂时性计算机可读存储介质,上述非暂时性计算机可读存储介质存储有计算机程序,上述计算机程序在被上述处理器运行时使上述处理器执行组播广播业务数据传输方法。
上述非暂时性计算机可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本领域内的技术人员应明白,本申请的实施例可提供为方法、***、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中,使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (35)

  1. 一种组播广播业务MBS数据传输方法,应用于远端终端,所述方法包括:
    向中继终端发送MBS监听请求,所述MBS监听请求包括第一MBS的MBS会话标识,所述MBS监听请求用于指示所述中继终端从网络设备获取所述第一MBS的MBS数据;
    接收所述中继终端发送的所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  2. 根据权利要求1所述的方法,其中,所述MBS监听请求还包括以下一项或者多项:
    所述第一MBS相关联的协议数据单元PDU会话的第一数据网络名称DNN;
    所述第一MBS相关联的PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
    所述第一MBS相关联的第一中继服务代码。
  3. 根据权利要求2所述的方法,其中,所述第一MBS相关联的第一中继服务代码通过以下方式得到:
    从核心网设备中获取中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系;
    根据所述第一映射关系和从所述中继终端中获取的所述第一DNN、所述第一S-NSSAI,得到所述第一MBS相关联的第一中继服务代码。
  4. 根据权利要求2所述的方法,其中,所述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
    从核心网设备中获取中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系;
    根据所述第一映射关系和从所述中继终端中获取的所述第一中继服务代码,得到所述第一MBS相关联的PDU会话的第一DNN和第一S- NSSAI。
  5. 根据权利要求1所述的方法,其中,所述接收所述中继终端发送的所述MBS数据,包括:
    接收所述中继终端发送的第一层2组标识;
    根据所述第一层2组标识,从所述第一层2组标识对应的层2中获取所述中继终端通过组播方式发送的所述MBS数据。
  6. 根据权利要求1所述的方法,其中,所述接收所述中继终端发送的所述MBS数据,包括:
    接收所述中继终端发送的指示信息,所述指示信息用于指示通过单播方式发送所述MBS数据;
    根据所述指示信息,通过直连通信接口获取所述中继终端通过单播方式发送的所述MBS数据。
  7. 根据权利要求1所述的方法,其中,在向所述中继终端发送所述MBS监听请求之后,所述方法还包括:
    接收所述中继终端发送的MBS数据获取失败信息。
  8. 一种组播广播业务MBS数据传输方法,应用于中继终端,所述方法包括:
    接收远端终端发送的MBS监听请求,所述MBS监听请求包括第一MBS的MBS会话标识;
    基于所述MBS监听请求从网络设备获取所述第一MBS的MBS数据;
    向所述远端终端发送所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  9. 根据权利要求8所述的方法,其中,所述基于所述MBS监听请求从网络设备获取所述第一MBS的MBS数据,包括:
    向所述网络设备发送协议数据单元PDU会话建立请求,所述PDU会话建立请求中包含所述第一MBS相关联的PDU会话的第一数据网络名称DNN以及所述PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
    若PDU会话建立成功,则向所述网络设备发送组播会话加入请求,所述组播会话加入请求中包含所述第一MBS的MBS会话标识;
    若确定加入所述第一MBS对应的MBS会话成功,则从网络设备获取所述第一MBS的MBS数据。
  10. 根据权利要求9所述的方法,所述方法还包括:
    若所述PDU会话建立失败,和/或,加入所述第一MBS的MBS会话失败,则向所述远端终端发送MBS数据获取失败信息。
  11. 根据权利要求9所述的方法,其中,所述第一MBS相关联的PDU会话的第一DNN以及所述PDU会话的第一S-NSSAI携带在所述MBS监听请求中;
    或者,所述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
    根据从核心网设备中获取的中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系,得到与所述MBS监听请求中包括的第一中继服务代码相对应的PDU会话的第一DNN和第一S-NSSAI。
  12. 根据权利要求8所述的方法,其中,所述向所述远端终端发送所述MBS数据,包括:
    确定向所述远端终端提供所述MBS数据的传输方式,所述传输方式包含组播方式或者单播方式;
    按照确定的所述传输方式,向所述远端终端发送所述MBS数据。
  13. 根据权利要求12所述的方法,其中,按照确定的所述传输方式,向所述远端终端发送所述MBS数据,包括:
    确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数;
    基于所述第一服务质量参数和确定的所述传输方式,向所述远端终端发送所述MBS数据。
  14. 根据权利要求13所述的方法,其中,所述确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数,包括:
    若基于PDU会话获取所述MBS数据,则确定中继终端与所述网络设备之间的蜂窝通信接口对应的第二服务质量参数、以及蜂窝通信接口对应的服务质量参数与直连通信接口对应的服务质量参数的第二映射关系,基于所述第二服务质量参数和所述第二映射关系,确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数;
    若基于单播方式或者组播方式获取所述MBS数据,则确定所述网络设备发送所述MBS数据对应的第一无线承载、以及无线承载和直连通信接口对应的服务质量参数的第三映射关系,基于所述第一无线承载和所述第三映射关系,确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数。
  15. 根据权利要求12所述的方法,其中,所述向所述远端终端发送所述MBS数据,包括:
    确定采用组播方式向所述远端终端提供所述MBS数据;
    向所述远端终端发送MBS监听响应消息,所述MBS监听响应消息中包含第一层2组标识;
    基于所述第一层2组标识,通过组播方式向所述远端终端发送所述MBS数据。
  16. 根据权利要求12所述的方法,其中,所述向所述远端终端发送所述MBS数据,包括:
    确定采用单播方式向所述远端终端发送所述MBS数据;
    向所述远端终端发送指示信息,所述指示信息用于指示通过单播方式发送所述MBS数据;
    在直连通信接口上通过单播方式向所述远端终端发送所述MBS数据。
  17. 一种远端终端,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并运行所述计算机程序以执行以下操作:
    向中继终端发送广播组播业务MBS监听请求,所述MBS监听请求 包括第一MBS的MBS会话标识,所述MBS监听请求用于指示所述中继终端从网络设备获取所述第一MBS的MBS数据;
    接收所述中继终端发送的所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  18. 根据权利要求17所述的远端终端,其中,所述MBS监听请求还包括以下一项或者多项:
    所述第一MBS相关联的协议数据单元PDU会话的第一数据网络名称DNN;
    所述第一MBS相关联的PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
    所述第一MBS相关联的第一中继服务代码。
  19. 根据权利要求18所述的远端终端,其中,所述第一MBS相关联的第一中继服务代码由所述处理器执行以下操作得到:
    从核心网设备中获取中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系;
    根据所述第一映射关系和从所述中继终端中获取的所述第一DNN、所述第一S-NSSAI,得到所述第一MBS相关联的第一中继服务代码。
  20. 根据权利要求18所述的远端终端,其中,所述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI由所述处理器执行以下操作得到:
    从核心网设备中获取中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系;
    根据所述第一映射关系和从所述中继终端中获取的所述第一中继服务代码,得到所述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI。
  21. 根据权利要求17所述的远端终端,其中,所述处理器进一步执行以下操作:
    接收所述中继终端发送的第一层2组标识;
    根据所述第一层2组标识,从所述第一层2组标识对应的层2中获取所述中继终端通过组播方式发送的所述MBS数据。
  22. 根据权利要求17所述的远端终端,其中,所述处理器进一步执行以下操作:
    接收所述中继终端发送的指示信息,所述指示信息用于指示通过单播方式发送所述MBS数据;
    根据所述指示信息,通过直连通信接口获取所述中继终端通过单播方式发送的所述MBS数据。
  23. 根据权利要求17所述的远端终端,其中,所述处理器在向所述中继终端发送所述MBS监听请求之后,还执行以下操作:
    接收所述中继终端发送的MBS数据获取失败信息。
  24. 一种中继终端,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并运行所述计算机程序以执行以下操作:
    接收远端终端发送的组播广播业务MBS监听请求,所述MBS监听请求包括第一MBS的MBS会话标识;
    基于所述MBS监听请求从网络设备获取所述第一MBS的MBS数据;
    向所述远端终端发送所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  25. 根据权利要求24所述的中继终端,其中,所述处理器进一步执行以下操作:
    向所述网络设备发送协议数据单元PDU会话建立请求,所述PDU会话建立请求中包含所述第一MBS相关联的PDU会话的第一数据网络名称DNN以及所述PDU会话的第一单一网络切片选择辅助信息S-NSSAI;
    若PDU会话建立成功,则向所述网络设备发送组播会话加入请求,所述组播会话加入请求中包含所述第一MBS的MBS会话标识;
    若确定加入所述第一MBS对应的MBS会话成功,则从网络设备获取所述第一MBS的MBS数据。
  26. 根据权利要求25所述的中继终端,所述处理器还执行以下操作:
    若所述PDU会话建立失败,和/或,加入所述第一MBS的MBS会话失败,则向所述远端终端发送MBS数据获取失败信息。
  27. 根据权利要求25所述的中继终端,其中,所述第一MBS相关联的PDU会话的第一DNN以及所述PDU会话的第一S-NSSAI携带在所述MBS监听请求中;
    或者,所述第一MBS相关联的PDU会话的第一DNN和第一S-NSSAI通过以下方式得到:
    根据从核心网设备中获取的中继服务代码与PDU会话的DNN、所述PDU会话的S-NSSAI之间的第一映射关系,得到与所述MBS监听请求中包括的第一中继服务代码相对应的PDU会话的第一DNN和第一S-NSSAI。
  28. 根据权利要求24所述的中继终端,其中,所述处理器进一步执行以下操作:
    确定向所述远端终端提供所述MBS数据的传输方式,所述传输方式包含组播方式或者单播方式;
    按照确定的所述传输方式,向所述远端终端发送所述MBS数据。
  29. 根据权利要求28所述的中继终端,其中,所述处理器进一步执行以下操作:
    确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数;
    基于所述第一服务质量参数和确定的所述传输方式,向所述远端终端发送所述MBS数据。
  30. 根据权利要求29所述的中继终端,其中,所述处理器进一步执行以下操作:
    若基于PDU会话获取所述MBS数据,则确定中继终端与所述网络设备之间的蜂窝通信接口对应的第二服务质量参数、以及蜂窝通信接口对应 的服务质量参数与直连通信接口对应的服务质量参数的第二映射关系,基于所述第二服务质量参数和所述第二映射关系,确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数;
    若基于单播方式或者组播方式获取所述MBS数据,则确定所述网络设备发送所述MBS数据对应的第一无线承载、以及无线承载和直连通信接口对应的服务质量参数的第三映射关系,基于所述第一无线承载和所述第三映射关系,确定所述中继终端和所述远端终端之间的直连通信接口对应的第一服务质量参数。
  31. 根据权利要求28所述的中继终端,其中,所述处理器进一步执行以下操作:
    确定采用组播方式向所述远端终端提供所述MBS数据;
    向所述远端终端发送MBS监听响应消息,所述MBS监听响应消息中包含第一层2组标识;
    基于所述第一层2组标识,通过组播方式向所述远端终端发送所述MBS数据。
  32. 根据权利要求28所述的中继终端,其中,所述处理器进一步执行以下操作:
    确定采用单播方式向所述远端终端发送所述MBS数据;
    向所述远端终端发送指示信息,所述指示信息用于指示通过单播方式发送所述MBS数据;
    在直连通信接口上通过单播方式向所述远端终端发送所述MBS数据。
  33. 一种组播广播业务MBS数据传输装置,所述装置包括:
    第一发送单元,用于向中继终端发送MBS监听请求,所述MBS监听请求包括第一MBS的MBS会话标识,所述MBS监听请求用于指示所述中继终端从网络设备获取所述第一MBS的MBS数据;
    第一接收单元,用于接收所述中继终端发送的所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  34. 一种组播广播业务MBS数据传输装置,所述装置包括:
    第二接收单元,用于接收远端终端发送的MBS监听请求,所述MBS监听请求包括第一MBS的MBS会话标识;
    数据获取单元,用于基于所述MBS监听请求从网络设备获取所述第一MBS的MBS数据;
    第二发送单元,用于向所述远端终端发送所述MBS数据;
    其中,所述远端终端与所述中继终端之间建立直连通信。
  35. 一种非暂时性计算机可读存储介质,所述非暂时性计算机可读存储介质存储有计算机程序,当所述计算机程序被处理器运行时,使所述处理器执行权利要求1至7或者权利要求8至16中任一项所述的方法。
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