WO2022028612A1 - 多媒体广播多播业务的传输方法、装置、设备及存储介质 - Google Patents

多媒体广播多播业务的传输方法、装置、设备及存储介质 Download PDF

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Publication number
WO2022028612A1
WO2022028612A1 PCT/CN2021/111349 CN2021111349W WO2022028612A1 WO 2022028612 A1 WO2022028612 A1 WO 2022028612A1 CN 2021111349 W CN2021111349 W CN 2021111349W WO 2022028612 A1 WO2022028612 A1 WO 2022028612A1
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Prior art keywords
network device
target
information
access network
mbms
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PCT/CN2021/111349
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English (en)
French (fr)
Inventor
张大钧
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大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP21852667.1A priority Critical patent/EP4195713A4/en
Priority to US18/040,974 priority patent/US20230269829A1/en
Publication of WO2022028612A1 publication Critical patent/WO2022028612A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present application relates to the field of communications, and in particular, to a method, apparatus, device and storage medium for transmitting multimedia broadcast and multicast services.
  • the Multimedia Broadcast Multicast Service was proposed by the 3rd Generation Partnership Project (3GPP) program. Utilization of resources, especially the air interface.
  • MBMS technology only allows core network equipment to initiate a Multicast Broadcast Service (MBS) session start process to a pre-statically planned target cell or access network equipment, which makes MBMS transmission limited and network resource utilization inefficient. .
  • MMS Multicast Broadcast Service
  • the present application provides a method, device, device and storage medium for transmitting multimedia broadcast and multicast services, which are used to solve the problems of limited MBMS transmission and low utilization efficiency of network resources.
  • the present application provides a method for transmitting multimedia broadcast and multicast services, which is applied to core network equipment, including:
  • the network device needs to receive the target MBMS.
  • the method before the determining of the target terminal interested in the target multimedia broadcast multicast service MBMS, the method further includes:
  • the determining the target terminal interested in the target multimedia broadcast multicast service MBMS includes:
  • a target terminal interested in the target MBMS is determined according to the preset correspondence between the terminal device and the MBMS and the third information.
  • the determining a cell related to the target terminal includes:
  • the determining a cell related to the target terminal includes:
  • the pre-stored cell where the target terminal in the inactive state and/or the target terminal in the connected state is located is acquired.
  • the first information is specifically used to trigger the access network device to page the target terminal in an idle state and/or the target terminal in an inactive state for the target MBMS.
  • the sending the first information to the access network device includes:
  • establishing a broadcast connection with the access network device for the target MBMS includes:
  • establishing a broadcast connection with the access network device for the target MBMS includes:
  • the fourth information is used to indicate session establishment of the target MBMS.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS.
  • the second information from the access network device or the target terminal establish a broadcast connection with the access network device for the target MBMS, including:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, where the service request message includes The second information and the fourth information are used to indicate session establishment of the target MBMS.
  • the service request message further includes location information of a target terminal that responds to the paging of the access network device, and the method further includes:
  • the pre-stored cell where the target terminal that responds to the paging of the access network device is located is updated.
  • the present application provides a method for transmitting multimedia broadcast and multicast services, which is applied to an access network device, and the method includes:
  • second information is returned to the core network device, where the second information is used to indicate the access network device.
  • the network device needs to receive the target MBMS.
  • the receiving the first information from the core network device includes:
  • returning the second information to the core network device includes:
  • a service investigation response message carrying the second information is returned to the core network device.
  • the target MBMS needs to be received according to the response of the target terminal to the paging of the access network device, returning second information to the core network device, including:
  • the second information from the target terminal is received, and the first information from the target terminal is received.
  • the second information is sent to the core network device.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS. If it is determined that the target terminal needs to receive the target MBMS in response to the paging of the access network device, the target terminal returns second information to the core network device, including:
  • a service request message is sent to the core network device, where the service request message includes the second information.
  • the service request message includes location information of a target terminal that responds to the paging of the access network device.
  • the method further includes: :
  • radio resource configuration and data broadcasting of a broadcast multicast session are performed for the target MBMS.
  • the target MBMS needs to be received according to the response of the target terminal to the paging of the access network device, returning second information to the core network device, including:
  • the second information is returned to the core network device.
  • the present application provides a core network device, including a memory, a transceiver and a processor:
  • the memory for storing computer programs
  • the transceiver configured to send and receive data under the control of the processor
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the network device needs to receive the target MBMS.
  • the processor before determining the target terminal interested in the target multimedia broadcast multicast service MBMS, the processor is further configured to:
  • the determining the target terminal interested in the target multimedia broadcast multicast service MBMS includes:
  • a target terminal interested in the target MBMS is determined according to the preset correspondence between the terminal device and the MBMS and the third information.
  • the determining a cell related to the target terminal includes:
  • the determining a cell related to the target terminal includes:
  • the pre-stored cell where the target terminal in the inactive state and/or the target terminal in the connected state is located is acquired.
  • the first information is specifically used to trigger the access network device to page the target terminal in an idle state and/or the target terminal in an inactive state for the target MBMS.
  • the sending the first information to the access network device includes:
  • establishing a broadcast connection with the access network device for the target MBMS includes:
  • establishing a broadcast connection with the access network device for the target MBMS includes:
  • the fourth information is used to indicate session establishment of the target MBMS.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS.
  • the second information After receiving the second information, establish a broadcast connection with the access network device for the target MBMS, including:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, where the service request message includes The second information and the fourth information are used to indicate session establishment of the target MBMS.
  • the service request message further includes location information of a target terminal that responds to the paging of the access network device, and the processor further performs the following operations:
  • the pre-stored cell where the target terminal that responds to the paging of the access network device is located is updated.
  • the present application provides an access network device, including a memory, a transceiver and a processor:
  • the memory for storing computer programs
  • the transceiver configured to send and receive data under the control of the processor
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • second information is returned to the core network device, where the second information is used to indicate the access network device.
  • the network device needs to receive the target MBMS.
  • the receiving the first information from the core network device includes:
  • returning the second information to the core network device includes:
  • a service investigation response message carrying the second information is returned to the core network device.
  • the target MBMS needs to be received according to the response of the target terminal to the paging of the access network device, returning second information to the core network device, including:
  • the second information from the target terminal is received, and the first information from the target terminal is received.
  • the second information is sent to the core network device.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS. If it is determined that the target terminal needs to receive the target MBMS in response to the paging of the access network device, the target terminal returns second information to the core network device, including:
  • a service request message is sent to the core network device, where the service request message includes the second information.
  • the service request message includes location information of a target terminal that responds to the paging of the access network device.
  • the processor further Used for:
  • radio resource configuration and data broadcasting of a broadcast multicast session are performed for the target MBMS.
  • the target MBMS needs to be received according to the response of the target terminal to the paging of the access network device, returning second information to the core network device, including:
  • the second information is returned to the core network device.
  • the present application provides a device for transmitting multimedia broadcast and multicast services, including:
  • a determining unit configured to determine a target terminal interested in the target multimedia broadcast and multicast service (MBMS), and determine a cell related to the target terminal;
  • MBMS target multimedia broadcast and multicast service
  • a communication unit configured to send first information to the access network device to which the cell belongs, where the first information is used to trigger the access network device to confirm whether it needs to receive the target MBMS;
  • connection unit configured to establish a broadcast connection with the access network device for the target MBMS if second information from the access network device or the target terminal is received, where the second information is used for Indicates that the access network device needs to receive the target MBMS.
  • the communication unit before determining the target terminal interested in the target multimedia broadcast multicast service MBMS, the communication unit is further configured to:
  • the determining unit is specifically used for:
  • a target terminal interested in the target MBMS is determined according to the preset correspondence between the terminal device and the MBMS and the third information.
  • the determining unit is specifically used for:
  • the determining unit is specifically used for:
  • the pre-stored cell where the target terminal in the inactive state and/or the target terminal in the connected state is located is acquired.
  • the first information is specifically used to trigger the access network device to page the target terminal in an idle state and/or the target terminal in an inactive state for the target MBMS.
  • the communication unit is specifically used for:
  • connection unit is specifically used for:
  • connection unit is specifically used for:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, and the fourth The information is used to indicate session establishment of the target MBMS.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS, and the connection unit , specifically for:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, where the service request message includes The second information and the fourth information are used to indicate session establishment of the target MBMS.
  • the service request message further includes location information of a target terminal that responds to the paging of the access network device, and the apparatus further includes:
  • the updating unit is configured to update the pre-stored location of the target terminal that responds to the paging of the access network device according to the location information of the target terminal that responds to the paging of the access network device. community.
  • the present application provides a device for transmitting multimedia broadcast and multicast services, including:
  • a communication unit configured to receive first information from the core network device, where the first information is used to trigger the access network device to which the cell related to the target terminal belongs to confirm whether the target terminal needs to receive the target MBMS, the target terminal is for the target terminal Terminal devices of interest to the target MBMS;
  • a paging unit configured to respond to the first information, for the target MBMS pair in the cell under the jurisdiction of the access network device, for the target terminal in an idle state and/or the target terminal in an inactive state
  • the target terminal performs paging
  • the communication unit is further configured to return second information to the core network device if it is determined according to the response of the target terminal to the paging of the access network device that the target MBMS needs to be received, the second information is returned to the core network device.
  • the information is used to indicate that the access network device needs to receive the target MBMS.
  • the communication unit is specifically used for:
  • a service investigation response message carrying the second information is returned to the core network device.
  • the communication unit is specifically used for:
  • the second information from the target terminal is received, and the first information from the target terminal is received.
  • the second information is sent to the core network device.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in an inactive state for the target MBMS, and the communication unit , specifically for:
  • a service request message is sent to the core network device, where the service request message includes the second information.
  • the service request message includes location information of a target terminal that responds to the paging of the access network device.
  • the communication unit After returning the second information to the core network device if it is determined that the target MBMS needs to be received according to the response of the target terminal to the paging of the access network device, the communication unit, Also used for:
  • radio resource configuration and data broadcasting of a broadcast multicast session are performed for the target MBMS.
  • the communication unit is specifically used for:
  • the second information is returned to the core network device.
  • the present application provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the method described in the first aspect or the second aspect.
  • the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or the method of the second aspect.
  • the present application provides a communication system, including the core network device according to the third aspect, the access network device and the terminal device according to the fourth aspect.
  • the present application provides a method and device for transmitting multimedia broadcast and multicast services.
  • a core network device determines a target terminal interested in a target MBMS, determines a cell related to the target terminal, and sends a message to the access network device to which the cell related to the target terminal belongs. Send a first message, the first message is used to trigger the access network device to confirm whether it needs to receive the target MBMS, if the core network device receives the second information from the access network device or the target terminal, it will establish with the access network device.
  • the broadcast connection of MBMS the second information is used to indicate that the access network device needs to receive the target MBMS, so the actual demand of the access network device for the target MBMS is fully considered in the target MBMS transmission, so as to improve the flexibility of MBMS transmission and improve the utilization of network resources. utilization.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application
  • FIG. 2 is an exemplary flowchart of SC-PTM mode transmission of MBMS according to an embodiment of the present application
  • FIG. 3 is an exemplary flowchart of another transmission scheme of MBMS provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by an embodiment of the present application
  • FIG. 5 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • FIG. 6 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • FIG. 7 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • FIG. 8 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • FIG. 9 is a flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • FIG. 10 is a schematic diagram of a core network device according to an embodiment of the application.
  • FIG. 11 is a schematic diagram of an access network device according to an embodiment of the application.
  • FIG. 12 is a schematic diagram of an apparatus for transmitting a multimedia broadcast multicast service provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of an apparatus for transmitting a multimedia broadcast multicast service according to another embodiment of the present application.
  • At least one means one or more, and “plurality” means two or more.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • “At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple .
  • a suitable communication system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general Packet radio service (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 , Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) system, 5G New Radio (New Radio) , NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • General Packet radio service general Packet radio service
  • GPRS general Packet radio service
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division du
  • the communication system to which the technical solutions provided in the embodiments of the present application are applicable includes network equipment and terminal equipment, and the network equipment may include access network equipment and core network equipment.
  • the access network device may be, for example, a wireless access network device.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • a communication system includes a network device and a terminal device, and the network device may include a radio access network device and a core network device.
  • the terminal equipment is connected with the wireless access network equipment in a wireless manner, and the wireless access network equipment is connected with the core network equipment in a wireless or limited manner.
  • the core network device and the radio access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the radio access network device can be integrated on the same physical device, or they can be one physical device. It integrates the functions of some core network equipment and some wireless access network equipment.
  • Terminal equipment can be fixed or movable. FIG.
  • the communication system may also include other network devices, such as wireless repeater devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices in the communication system. It should be noted that, the two radio access network devices shown in FIG. 1 may be connected to the same core network device, or may be connected to different core network devices.
  • Core network (Core Network, CN) equipment may refer to the access and mobility management function (AMF) entity, or may refer to the session management function (session management function, SMF) entity, the mobility management entity (mobility management function) management entity, MME) or other core network equipment.
  • AMF access and mobility management function
  • SMF session management function
  • MME mobility management function management entity
  • Access network (AN) equipment such as radio access network (RAN) equipment, which is a device that connects terminal equipment to a wireless network, which can be long term evolution (LTE) Evolved base station (evolutional Node B, eNB or eNodeB), or relay station or access point, or 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B , HeNB), relay node (relay node), home base station (femto), pico base station (pico), etc., which are not limited here.
  • LTE long term evolution
  • eNB Evolved base station
  • gNB 5G base station
  • HeNB relay node
  • home base station femto
  • pico base station pico
  • the radio access network equipment may be a base station (such as a gNB) with a separate architecture of centralized unit (centralized unit, CU) and distributed unit (distributed unit, DU), and CU and During can also be separated geographically. layout.
  • a base station such as a gNB
  • CU central processing unit
  • DU distributed unit
  • Terminal equipment It can be a wireless terminal or a wired terminal.
  • a wireless terminal can refer to a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as on airplanes, balloons, satellites, etc.).
  • the terminal device can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) terminal wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart grid Wireless terminals in a city (smart city), wireless terminals in a smart home (smart home), etc., are not limited here. It can be understood that, in this embodiment of the present application, the terminal device may also be referred to as user equipment (user equipment, UE).
  • user equipment user equipment
  • one or more antennas can be used between the terminal device and the RAN for multiple input multiple output (Multi Input Multi Output, MIMO) transmission, and the MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO 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.
  • Multimedia Broadcast Multicast Service refers to the technology of sending broadcast data or multicast data from one data source to multiple terminal devices, which can improve the utilization rate of network resources (especially the air interface).
  • the core network device when a Multicast Broadcast Service (MBS) session starts, the core network device sends a session start request message to the access network device to notify the access network device that an MBS session is about to start, and requests A bearer network for transmitting the MBS session is established with the access network device.
  • MBS Multicast Broadcast Service
  • the core network device can only send the MBS session start request message to the target cell or the target access network device that has been statically set in advance. It does not fully consider that the location of the terminal device may change, resulting in limited MBMS transmission and network resource utilization. The efficiency is not high, resulting in poor transmission effect of MBMS.
  • an access network device can manage or govern one or more cells, where a cell refers to a geographic area or a partially covered geographic area covered by an access network device, such as a cell, and the terminal equipment in the cell can communicate with the cell.
  • FIG. 2 is an exemplary flowchart of a single cell point-to-multipoint (Single Cell-Point To Multipoint, SC-PTM) mode transmission of MBMS.
  • a Multi-cell/multicast Coordination Entity belongs to a logical node in a radio access network, and the MCE can control one or more eNBs.
  • the CN device sends an MBS session start request message to the pre-statically planned MCE, and the MCE returns an MBS session start response message to the CN device, and establishes a bearer network according to the SC-PTM mode.
  • the MCE sends the MBS session start request message to the eNB.
  • the eNB After receiving the MBS session request message, the eNB returns the MBS session start response message to the MCE, and triggers the SC-PTM mode with the UE to establish the SC-PTM mode with the UE. bearer network.
  • the UE interested in MBMS learns the service channel (Single Cell MBMS) of the single-cell multimedia broadcast and multicast service by reading the information of the Single Cell Multicast Control Channel (SC-MCCH). Traffic Channel, SC-MTCH) scheduling information, according to which the MBMS can be received in an idle (Idle) state or a connected (connected) state.
  • SC-MTCH Traffic Channel
  • FIG. 3 is an exemplary flowchart of another transmission scheme of MBMS.
  • a mobility management entity Mobility Management Entity, MME
  • MME Mobility Management Entity
  • the MCE sends the MBS session start request message to the MCE, the MCE returns the MBS session start response message to the MCE, and sends the MBS session start request message to the eNB.
  • the eNB sends MBMS scheduling messages.
  • the eNB When the eNB receives the MBMS scheduling message, it returns the MBMS scheduling message response to the MCE, notifies the UE of the start of the MBS session, and at the same time adds the MBS session address to receive user plane (User Plane) data, and synchronously sends the received data to multiple UEs.
  • the MBMS transmission process shown in FIG. 3 is triggered by the MBS session start request message from the MCE and the MBMS scheduling message to trigger the eNB to establish the MBMS transmission mechanism for the UE. It also needs to be statically set in advance to receive the MBS session start of the MCE.
  • the request message and the eNB of the MBMS scheduling message result in limited MBMS transmission and low network resource utilization efficiency.
  • the subsequent session or MBMS session or the target MBMS session has the same meaning as the above-mentioned MBS session.
  • embodiments of the present application provide a method, apparatus, device, and medium for transmitting a multimedia broadcast and multicast service.
  • the core network device determines the target terminal interested in the target MBMS during the transmission process of the target MBMS, determines the cell related to the target terminal, and sends a message to the target terminal related to the target terminal.
  • the access network device to which the relevant cell belongs sends first information, where the first information is used to trigger the access network device to confirm whether it needs to receive the target MBMS. If the second information of the network device or the target terminal is obtained, a broadcast connection for the target MBMS is established with the access network device.
  • the core network device establishes a broadcast connection for the target MBMS with the access network device that actually needs to receive the target MBMS, instead of establishing a broadcast connection with a statically set fixed access network device every time MBMS transmission is performed, effectively
  • the transmission flexibility of MBMS is improved, the utilization efficiency of network resources is improved, and the transmission effect of MBMS is effectively improved.
  • the methods and devices provided in the embodiments of the present application are based on the same application concept. Since the methods and devices solve problems in similar principles, the implementations of the devices and methods can be referred to each other, and repeated descriptions will not be repeated here.
  • FIG. 4 is a schematic flowchart of a method for transmitting a multimedia broadcast multicast service according to an embodiment of the present application.
  • the method in this embodiment may be executed by the above-mentioned core network device.
  • the method of this embodiment may include:
  • the core network device may determine the target terminal interested in the target MBMS according to the preset correspondence between the terminal device and the MBMS stored in advance. Wherein, in the preset correspondence between the terminal device and the MBMS, the terminal device corresponding to the target MBMS is the target terminal interested in the target MBMS.
  • the core network device receives third information from the SMF entity, where the third information is used to indicate the start of a session of the target MBMS.
  • the core network device determines the target terminal interested in the target MBMS, so as to trigger the core network device to transmit the target MBMS by receiving the third information.
  • the third information includes an identifier of the target MBMS.
  • the identifier corresponding to the target MBMS can be found.
  • the terminal equipment obtained is the terminal equipment corresponding to the target MBMS, that is, the target terminal interested in the target MBMS.
  • the identifier of the target MBMS may include a service identifier and/or a session identifier of the target MBMS, wherein the service identifier of the target MBMS is unique, and the target MBMS may include one or more sessions, each session having a unique session identifier.
  • the core network device may receive the target MBMS through the AMF entity, and the AMF entity determines the target terminal interested in the target MBMS when the AMF entity receives the target MBMS.
  • the AMF entity may receive a session start message from the SMF entity, where the session start message includes the third information.
  • the AMF entity may also receive session start messages from other entities like the SMF entity.
  • the third information may further include quality of service (Quality of Service, QOS), multicast address and other information, so that the core network device and the access network device may also establish a broadcast connection according to the third information.
  • QOS Quality of Service
  • multicast address multicast address
  • the core network device when the core network device receives the target MBMS, it can directly determine the access network device to which the target terminal in the connected state is connected, and determine these access network devices.
  • the network device is an access network device that needs to receive the target MBMS, so it can directly send a session start request of the target MBMS to the access network device connected to the target terminal in the connected state, so as to realize the transmission of the target MBMS.
  • the core network device cannot accurately know the cell where the target terminal is located, and cannot accurately know the access network to which the target terminal is connected or will be connected. equipment, let alone determine whether these access network equipment needs to receive the target MBMS. Therefore, for a target terminal that is in an idle state or in an inactive state with the core network device, after determining the target terminal, the core network device can determine the cell where the target terminal may be located, and determine the cell where the target terminal may be located as related to the target terminal. 's district. For example, the cell where the target terminal may be located may be determined by the historical activity track, historical activity range or historical geographical location of the target terminal, etc.
  • the connected state, the idle state and the inactive state may be referred to as connected mode, idle mode and inactive mode, respectively.
  • the target terminal maintains communication with the core network equipment through the wireless access network equipment.
  • the amount of data transmitted to each other is large and the power consumption is high.
  • the core network equipment can obtain the real-time location of the target terminal through the wireless access network equipment. cell; in the idle state, the target terminal is disconnected from the wireless access network, and neither the core network equipment nor the wireless access network equipment can know the cell where the target terminal is located; in the inactive state, the target terminal is connected to the wireless access network.
  • the target terminal Connected but not connected to the core network equipment, the target terminal only retains part of the radio access network context, and the radio access network only retains part of the target terminal context. , the target terminal can quickly transition from the inactive state to the connected state.
  • S403 Send first information to the access network device to which the cell related to the target terminal belongs, where the first information is used to trigger the access network device to confirm whether the target MBMS needs to be received.
  • the core network device may send first information to the access network device to which the cell related to the target terminal belongs, where the first information is used to trigger the access network device to confirm whether Need to receive target MBMS.
  • the first information may include the target MBMS and the cell related to the target terminal.
  • the first information includes an identifier (service identifier and/or session identifier) of the target MBMS and a cell related to the target terminal, where the identifier of the target MBMS may be a single identifier or an identifier list composed of multiple identifiers, and the identifier of the target MBMS may be a
  • the cell related to the terminal may be a single cell or a cell list composed of multiple cells.
  • the first information includes a session list of the target MBMS and a cell related to the target terminal, and a session list of a target MBMS includes a service identifier and one or more session identifiers. Therefore, the access network device can determine whether the target terminal needs to receive the target MBMS in the corresponding cell according to the first information, and then determine whether the access network device itself needs to receive the target MBMS.
  • the first information is specifically used to trigger the access network device to page the target terminal for the target MBMS.
  • the access network device determines a cell under its own jurisdiction in the first information, and then Paging the target terminal in the idle state and/or the target terminal in the inactive state in the determined cell, so as to evoke the target terminal in the idle state and/or the target terminal in the inactive state through the access network equipment and the core network equipment Establish a communication connection and transition from an idle state or an inactive state to a connected state.
  • the access network device may determine whether it needs to receive the target MBMS according to the response of the target terminal in the idle state and/or the target terminal in the inactive state to the paging, that is, according to the arousal situation of the target terminal.
  • the core network device receives the second information from the access network device, or the second information sent by the target terminal device through the access network device, it means that there is a sense of the target MBMS in the cell under the jurisdiction of the access network device.
  • the interested target terminal that is, the access network device actually needs to receive the target MBMS. Therefore, the core network device and the access network device establish a broadcast connection for the target MBMS, so as to transmit the target MBMS through the broadcast connection.
  • the second information is used to indicate that the access network device needs to receive the target MBMS.
  • the core network device determines the target terminal that is interested in the target MBMS, determines the cell related to the target terminal, and sends the first information to the access network device to which the cell belongs to trigger the access network device to determine whether it is The target MBMS needs to be received. If the core network device receives the second information from the access network device or the target terminal, it establishes a broadcast connection with the access network device for the target MBMS, so that the access network device is fully considered in the target MBMS transmission. The actual demand for the target MBMS, improve the flexibility of MBMS transmission, improve the utilization rate of network resources.
  • the core network device pre-stores tracking area information of the terminal device, where the tracking area information includes one or more cells.
  • the core network device can acquire the pre-stored tracking area information of the idle target terminal, and for each idle target terminal, add the tracking area information of the target terminal into the tracking area information of the target terminal.
  • the cell is determined as the cell related to the target terminal, thereby improving the accuracy of the process of determining the cell related to the target terminal in the idle state.
  • the tracking area information includes one or more cells, which means that the tracking area information includes the name, geographic location and/or identity of one or more cells, and each terminal device may correspond to one piece of tracking area information.
  • the cell in the area information is the cell where the terminal equipment is often located.
  • the core network device cannot know the cell where the target terminal is located. Therefore, the pre-stored tracking area information of the target terminal in the idle state can be obtained, and one of the tracking area information of the target terminal in the idle state can be obtained. or multiple cells, which are determined as the cells related to the target terminal in the idle state.
  • the tracking area information of the target terminal is a tracking area identifier (Tracking Area Identity, TAI) of the target terminal or a tracking area identifier list (Tracking Area Identity list, TAI list), where TAI is the tracking area identifier in the LTE system , unique in the world, used for location management of terminal equipment.
  • TAI Track Area Identity
  • TAI list Track Area Identity list
  • Each cell belongs to only one tracking area. Therefore, according to the TAI of the target terminal, the cell related to the target terminal is determined, and the accuracy of the determination process of the access network equipment is improved.
  • the core network device may obtain a pre-stored cell where the target terminal is located, and determine the cell where the pre-stored target terminal is located to be related to The cell associated with the target terminal.
  • the core network device may acquire, in real time, the cell where the target terminal in the connected state is located through the access network device.
  • the target terminal in the inactive state is equivalent to being in a dormant state for the core network device to save the power and traffic of the target terminal.
  • the core network device can save the target terminal in the inactive state when it is converted to the connected state. 's district. Therefore, the core network device can acquire the pre-stored cell where the target terminal in the inactive state is located. After obtaining the cell where the target terminal is located, the cell where the target terminal is located may be determined as a cell related to the target terminal.
  • FIG. 5 shows a schematic flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application.
  • the method in this embodiment may be executed by the access network device.
  • the method of this embodiment may include:
  • S501 Receive first information from a core network device.
  • the first information is used to trigger the access network device to which the cell related to the target terminal belongs to confirm whether it needs to receive the target MBMS, and the target terminal is a terminal device interested in the target MBMS.
  • the target terminal is a terminal device interested in the target MBMS.
  • the access network device may determine that the target terminal in the idle state and/or the target terminal in the inactive state in the first information may appear in the cell where the target terminal is under its own jurisdiction. 's district. In the determined cell under its own jurisdiction, for the target MBMS, paging the target terminal in the idle state and/or the target terminal in the inactive state, so as to arouse the target terminal in the idle state interested in the target MBMS and/or a target terminal in an inactive state.
  • the target terminal in the idle state and/or the target terminal in the inactive state interested in the target MBMS will establish a communication connection with the core network device through the access network device for the target MBMS, to receive the target MBMS from the core network equipment. Therefore, the access network device can determine whether it needs to receive the target MBMS according to the response of the target terminal to the paging of the access network device.
  • the access network device determines that it needs to receive the target MBMS, and returns the second information to the core network device, Otherwise, the access network device determines that it does not need to receive the target MBMS, so as to improve the accuracy with which the access network device determines whether to receive the target MBMS.
  • the second information is used to indicate that the access network device needs to receive the target MBMS.
  • the second information is returned to the core network device, so that the core network device can know the access network device according to the second information. It needs to receive the target MBMS and establish a session of the target MBMS with the access network device.
  • the access network device after receiving the first information, the access network device paging the target terminal in the idle state and/or the target terminal in the inactive state, and determines itself according to the response of the target terminal to the paging Whether to receive the target MBMS, if necessary, notify the core network equipment through the second information, so that the actual demand of the access network equipment for the target MBMS can be fully considered in the target MBMS transmission, so as to improve the flexibility of MBMS transmission and improve the utilization rate of network resources. .
  • FIG. 6 is a schematic flowchart of a method for transmitting a multimedia broadcast multicast service provided by another embodiment of the present application, and FIG. 6 shows a core network device, an access network The interaction process between the device and the target terminal.
  • the method of this embodiment may include:
  • the core network device determines a target terminal interested in the target MBMS.
  • the core network device determines a cell related to the target terminal.
  • the core network device sends the first information to the access network device to which the cell related to the target terminal belongs.
  • the access network device in response to the first information from the core network device, paging the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS in the cell under the jurisdiction of the access network device.
  • the target terminal in the idle state and/or the target terminal in the inactive state responds to the paging of the access network device.
  • the access network device determines whether it needs to receive the target MBMS according to the response of the target terminal to the paging of the access network device.
  • the access network device determines that it needs to receive the target MBMS, it returns the second information to the core network device.
  • the core network device receives the second information, it establishes a broadcast connection for the target MBMS with the access network device.
  • FIG. 7 is a schematic flowchart of a method for transmitting a multimedia broadcast multicast service according to another embodiment of the present application, and FIG. 7 shows an interaction process between a core network device, an access network device, and a target terminal.
  • the method of this embodiment may include:
  • the core network device determines the target terminal interested in the target MBMS.
  • the core network device determines a cell related to the target terminal.
  • the core network device sends a service investigation request message to the access network device to which the cell related to the target terminal belongs.
  • the service investigation request message includes first information, and the service investigation request message is used to investigate whether the access network device needs to receive the target MBMS.
  • the access network device in response to the service investigation request message from the core network device, paging the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS in the cell under the jurisdiction of the access network device .
  • the access network device may, according to the first information in the service investigation request message, target the target terminal in the idle state for the target MBMS in the cell under the jurisdiction of the access network device. and/or inactive target terminal to perform paging.
  • the target terminal in the idle state and/or the target terminal in the inactive state responds to the paging of the access network device.
  • the access network device determines whether it needs to receive the target MBMS according to the response of the target terminal to the paging of the access network device.
  • the access network device determines that it needs to receive the target MBMS, it returns a service investigation response message carrying the second information to the core network device, otherwise it returns a service investigation response message that does not carry the second information.
  • the service investigation response message returned by the access network device to the core network device is used to feed back to the core network device whether the access network device needs to receive the target MBMS.
  • the core network device sends the fourth information to the access network device, and establishes a broadcast connection with the access network device for the target MBMS.
  • the fourth information is used to indicate session establishment of the target MBMS.
  • the core network device sends the fourth information to the access network device, and establishes a broadcast connection with the access network device for the target MBMS, so as to communicate with the access network device Session of the target MBMS.
  • the broadcast connection for the target MBMS is an N3 interface-based broadcast connection between the SMF entity and the access network device.
  • the access network device in response to the fourth information, performs radio resource configuration and data broadcast of the broadcast multicast session for the target MBMS.
  • the access network device in response to the fourth information, performs radio resource configuration and data broadcast of the broadcast multicast session for the target MBMS.
  • the radio resource configuration for the broadcast multicast session for example, by allocating and modulating radio transmission and network resources, ensures the synchronization and signal quality of the sessions of the target MBMS received by different target terminals.
  • the core network device investigates whether the access network device to which the cell related to the target terminal belongs needs to receive the target MBMS through the service investigation method, and the access network device returns the result to the core network device through the service investigation response method, thereby
  • the actual needs of the access network equipment for the target MBMS are fully considered, the flexibility of the MBMS transmission is improved, and the utilization rate of the network resources is improved.
  • FIG. 8 is a schematic flowchart of a method for transmitting a multimedia broadcast multicast service according to another embodiment of the present application, and FIG. 8 shows an interaction process between a core network device, an access network device, and a target terminal.
  • the method of this embodiment may include:
  • the core network device determines the target terminal interested in the target MBMS.
  • the core network device determines a cell related to the target terminal.
  • the core network device sends the first information to the access network device to which the cell related to the target terminal belongs.
  • the access network device in response to the first information from the core network device, paging the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS in the cell under the jurisdiction of the access network device.
  • the core network device sends a service investigation request message to the access network device to investigate whether the access network device needs to receive the target MBMS.
  • the access network device can return a service investigation confirmation to the core network device. message to indicate that it has received the service investigation request message from the core network device, and simultaneously paging the target terminal.
  • the service investigation confirmation message does not include the investigation result, and the service investigation request message includes the first information.
  • the target terminal in the idle state and/or the target terminal in the inactive state responds to the paging of the access network device.
  • the target terminal in the idle state and/or the target terminal in the inactive state sends the second information to the core network device after responding to the paging of the access network device.
  • the target terminal in the idle state and/or the target terminal in the inactive state will establish a communication connection with the core network device through the access network device for the target MBMS to receive messages from the core network device.
  • Target MBMS the target terminal in the idle state and/or the target terminal in the inactive state, after establishing a communication connection with the core network device through the access network device for the target MBMS, can send the second information to the core network device, wherein the second information is
  • the second information is For the relevant content of the information, reference may be made to the relevant descriptions of the foregoing method embodiments.
  • the target terminal may send the second information to the core network device by sending a non-access stratum (Non-Access Stratum, NAS) message to the core network device, where the second information is carried in the NAS message.
  • NAS non-access stratum
  • the target terminal may establish a protocol data unit (Protocol Data Unit, PUD) session with the core network device, and send the second information to the core network device through the PUD session.
  • PUD Protocol Data Unit
  • the core network device In response to the received second information, the core network device sends fourth information to the access network device, and establishes a broadcast connection with the access network device for the target MBMS.
  • the access network device in response to the fourth information, performs radio resource configuration and data broadcast of the broadcast multicast session for the target MBMS.
  • the core network device investigates whether the access network device to which the cell related to the target terminal belongs needs to receive the target MBMS through the service investigation method, and the access network device returns the result to the core network device through the service investigation response method, thereby
  • the actual needs of the access network equipment for the target MBMS are fully considered, the flexibility of the MBMS transmission is improved, and the utilization rate of the network resources is improved.
  • FIG. 9 is a schematic flowchart of a method for transmitting a multimedia broadcast multicast service according to another embodiment of the present application, and FIG. 9 shows an interaction process between a core network device, an access network device, and a target terminal.
  • the method of this embodiment may include:
  • the core network device determines a target terminal interested in the target MBMS.
  • the target terminal includes a target terminal in a connected state and/or a target terminal in an inactive state.
  • the core network device determines a cell related to the target terminal.
  • the core network device sends the first information to the access network device to which the cell related to the target terminal belongs.
  • the first information is used to trigger the access network device to paging the target terminal in the inactive state for the target MBMS and to instruct the session establishment of the target MBMS.
  • the core network device determines that the access network device to which the cell related to the target terminal in the connected state belongs is required to receive the target MBMS , and the access network equipment to which the cell related to the target terminal in the inactive state belongs has a high probability of being able to arouse the target terminal in the inactive state. Therefore, the core network device can directly send the first information that can be used to indicate the establishment of the target MBMS session to the access network device, so as to improve the establishment efficiency of the target MBMS session.
  • the access network device in response to the first information from the core network device, paging the target terminal in the inactive state for the target MBMS in the cell under the jurisdiction of the access network device.
  • the target terminal in the idle state and/or the target terminal in the inactive state responds to the paging of the access network device.
  • the access network device determines whether it needs to receive the target MBMS according to the response of the target terminal to the paging of the access network device.
  • the access network device determines that it needs to receive the target MBMS, it returns a service request message carrying the second information to the core network device.
  • the service request message is used to instruct the core network device to continue the session establishment process of the target MBMS.
  • the service request message further includes location information of the target terminal that responds to the paging of the access network device.
  • the pre-stored location of the target terminal that responds to the paging of the access network device is updated. cell, thereby improving the accuracy of the saved cell where the target terminal in the inactive state is located, and further improving the accuracy of the confirmation process of the access network device to which the cell related to the target terminal belongs.
  • the location information of the target terminal may include the geographical position of the target terminal and/or the geographical position of the cell where the target terminal is located.
  • the core network device sends fourth information to the access network device in response to receiving the service request message from the access network device, and establishes a broadcast connection with the access network device for the target MBMS.
  • the access network device in response to the fourth information, performs radio resource configuration and data broadcast of the broadcast multicast session for the target MBMS.
  • the core network device instructs the access network device to page the target terminal in the inactive state through the first information, and instructs the access network device to establish a session of the target MDMS, and the access network device returns the service by returning the service
  • the method of request message tells the core network equipment to continue the target MDMS session, so that in the transmission of the target MBMS, the actual needs of the access network equipment for the target MBMS are fully considered, the flexibility of MBMS transmission is improved, and the utilization rate of network resources is improved. , and ensure the efficiency of MBMS transmission.
  • the core network device in this embodiment may be a network device, and the core network device includes: a transceiver 1001 , a processor 1002 , and a memory 1003 .
  • the transceiver 1001 is used to receive and transmit data under the control of the processor 1002 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1002 and various circuits of the memory represented by the memory 1003 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1001 may be multiple elements, ie, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 1002 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1002 in performing operations.
  • the processor 1002 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor 1002 may also adopt a multi-core architecture.
  • the processor 1002 and the memory 1003 may also be arranged physically separately.
  • the processor 1002 is configured to perform the following operations according to the obtained executable instructions by calling the computer program stored in the memory 1003:
  • a broadcast connection for the target MBMS is established with the access network device, and the second information is used to indicate that the access network device needs to receive the target MBMS.
  • the processor 1002 is further configured to:
  • determine the target terminal interested in the target multimedia broadcast multicast service MBMS including:
  • the target terminal interested in the target MBMS is determined according to the preset correspondence between the terminal device and the MBMS and the third information.
  • determine a cell related to the target terminal including:
  • Acquire pre-stored tracking area information of a target terminal in an idle state where the tracking area information includes one or more cells.
  • determine a cell related to the target terminal including:
  • the first information is specifically used to trigger the access network device to page the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS.
  • send the first information to the access network device including:
  • Receive a service investigation response message from the access network device if the service investigation response message includes the second information, send fourth information to the access network device, and establish a broadcast connection with the access network device for the target MBMS, the fourth information Used to indicate session establishment of target MBMS.
  • the second information from the access network device or the target terminal is received, establish a broadcast connection with the access network device for the target MBMS, including:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, where the fourth information is used to indicate session establishment of the target MBMS.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate the session establishment of the target MBMS and trigger the access network device to page the target terminal in the inactive state for the target MBMS, and if the second information is received, establish with the access network device.
  • Broadcast connections to target MBMS including:
  • the fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device.
  • the service request message includes the second information, and the fourth information is used Indicates the session establishment of the target MBMS.
  • the service request message further includes location information of the target terminal that responds to the paging of the access network device, and the processor further performs the following operations:
  • the pre-stored cell where the target terminal that responds to the paging of the access network device is located is updated.
  • the access network device in this embodiment may be a network device, and the access network device includes: a transceiver 1101 , a processor 1102 , and a memory 1103 .
  • the transceiver 1101 is used to receive and transmit data under the control of the processor 1102 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by processor 1102 and various circuits of memory represented by memory 1103 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1101 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 1102 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1102 in performing operations.
  • the processor 1102 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor 1102 may also adopt a multi-core architecture.
  • the processor 1102 and the memory 1103 may also be physically separated.
  • the processor 1102 is configured to perform the following operations according to the obtained executable instructions by calling the computer program stored in the memory 1103:
  • the core network device receives first information from the core network device, where the first information is used to trigger the access network device to which the cell related to the target terminal belongs to confirm whether it needs to receive the target MBMS, and the target terminal is a terminal device interested in the target MBMS;
  • second information is returned to the core network device, where the second information is used to indicate that the access network device needs to receive the target MBMS.
  • receive the first information from the core network device including:
  • returning the second information to the core network device includes:
  • a service investigation response message carrying the second information is returned to the core network device.
  • second information is returned to the core network device, including:
  • the second information from the target terminal is received, and the second information from the target terminal is sent to the core network device.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate the session establishment of the target MBMS and trigger the access network device to page the target terminal in the inactive state for the target MBMS. If it is determined that the target MBMS needs to be received, the second information is returned to the core network device, including:
  • a service request message is sent to the core network device, where the service request message includes the second information.
  • the service request message includes location information of the target terminal that responds to the paging of the access network device.
  • the processor 1102 is further configured to:
  • radio resource configuration and data broadcasting of the broadcast multicast session are performed for the target MBMS.
  • second information is returned to the core network device, including:
  • the second information is returned to the core network device.
  • an embodiment of the present application provides an apparatus for transmitting a multimedia broadcast and multicast service.
  • the apparatus 1200 for transmitting a multimedia broadcast and multicast service in this embodiment includes: a determining unit 1201, Communication unit 1202 and connection unit 1203.
  • a determining unit 1201 configured to determine a target terminal interested in the target multimedia broadcast multicast service MBMS, and determine a cell related to the target terminal;
  • a communication unit 1202 configured to send first information to the access network device to which the cell related to the target terminal belongs, where the first information is used to trigger the access network device to confirm whether it needs to receive the target MBMS;
  • the connecting unit 1203 is configured to establish a broadcast connection with the access network device for the target MBMS if the second information from the access network device or the target terminal is received, where the second information is used to indicate that the access network device needs to receive the target MBMS .
  • the communication unit 1202 is further configured to:
  • the determining unit 1201 is specifically configured to:
  • the target terminal interested in the target MBMS is determined according to the preset correspondence between the terminal device and the MBMS and the third information.
  • the determining unit 1201 is specifically configured to:
  • Acquire pre-stored tracking area information of a target terminal in an idle state where the tracking area information includes one or more cells.
  • the determining unit 1201 is specifically configured to:
  • the first information is specifically used to trigger the access network device to page the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS.
  • the communication unit 1202 is specifically used for:
  • connection unit 1203 is specifically used for:
  • Receive a service investigation response message from the access network device if the service investigation response message includes the second information, send fourth information to the access network device, and establish a broadcast connection with the access network device for the target MBMS, the fourth information Used to indicate session establishment of target MBMS.
  • connection unit 1203 is specifically used for:
  • fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device, where the fourth information is used to indicate session establishment of the target MBMS.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate the session establishment of the target MBMS and trigger the access network device to page the target terminal in the inactive state for the target MBMS.
  • the connecting unit 1203 is specifically used for:
  • the fourth information is sent to the access network device, and a broadcast connection for the target MBMS is established with the access network device.
  • the service request message includes the second information, and the fourth information is used Indicates the session establishment of the target MBMS.
  • the service request message further includes the location information of the target terminal that responds to the paging of the access network device, and the apparatus 1200 for transmitting the multimedia broadcast multicast service further includes:
  • the updating unit is configured to update the pre-stored cell where the target terminal that responds to the paging of the access network device is located according to the location information of the target terminal that responds to the paging of the access network device.
  • an embodiment of the present application provides an apparatus for transmitting a multimedia broadcast and multicast service.
  • the apparatus for transmitting a multimedia broadcast and multicast service in this embodiment includes: a communication unit 1301 and a Paging unit 1302.
  • the communication unit 1301 is configured to receive first information from the core network device, where the first information is used to trigger the access network device to which the cell related to the target terminal belongs to confirm whether it needs to receive the target MBMS, and the target terminal is interested in the target MBMS Terminal Equipment;
  • a paging unit 1302 configured to, in response to the first information, page the target terminal in the idle state and/or the target terminal in the inactive state for the target MBMS in the cell under the jurisdiction of the access network device;
  • the communication unit 1301 is further configured to return second information to the core network device if it is determined according to the response of the target terminal to the paging of the access network device that the target MBMS needs to be received, where the second information is used to indicate that the access network device needs to receive the target MBMS.
  • the communication unit 1301 is specifically used for:
  • a service investigation response message carrying the second information is returned to the core network device.
  • the communication unit 1301 is specifically used for:
  • the second information from the target terminal is received, and the second information from the target terminal is sent to the core network device.
  • the second information is carried in a non-access stratum message from the target terminal.
  • the first information is used to indicate session establishment of the target MBMS and trigger the access network device to page the target terminal in the inactive state for the target MBMS.
  • the communication unit 1301 is specifically used for:
  • a service request message is sent to the core network device, where the service request message includes the second information.
  • the service request message includes location information of the target terminal that responds to the paging of the access network device.
  • the communication unit 1301 is further configured to:
  • radio resource configuration and data broadcasting of the broadcast multicast session are performed for the target MBMS.
  • the communication unit 1301 is specifically used for:
  • the second information is returned to the core network device.
  • 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 above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated units are implemented in the form of software functional units and sold or used as independent products, they may be stored in a processor-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) 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 .
  • an embodiment of the present application provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the relevant core network provided by the embodiment of the present application.
  • an embodiment of the present application provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the relevant access provided by the embodiment of the present application.
  • the processor-readable storage medium stores a computer program
  • the computer program is used to enable the processor to execute the relevant access provided by the embodiment of the present application.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
  • an embodiment of the present application further provides a computer program product containing instructions, the computer program is stored in a storage medium, and at least one processor can read the computer from the storage medium Program, when the at least one processor executes the computer program, it can implement all the method steps implemented by the core network device in the above method embodiments, and can achieve the same technical effect, and the method in this embodiment will not be implemented here.
  • the same parts and beneficial effects of the examples will be described in detail.
  • an embodiment of the present application further provides a computer program product containing instructions, the computer program is stored in a storage medium, and at least one processor can read the computer program from the storage medium
  • a computer program when the at least one processor executes the computer program, it can implement all the method steps implemented by the access network device in the above method embodiments, and can achieve the same technical effect, and the reference to this embodiment will not be discussed here.
  • the same parts and beneficial effects of the method embodiments will be described in detail.
  • An embodiment of the present application further provides a communication system, including core network equipment, access network equipment, and terminal equipment.
  • the core network equipment is the core network equipment described in the foregoing apparatus embodiments, which can perform all the method steps performed by the core network equipment in the foregoing method embodiments, and can achieve the same technical effect.
  • the access network equipment is the access network equipment described in the foregoing apparatus embodiments, and can execute all the method steps performed by the access network equipment in the foregoing method embodiments, and can achieve the same technical effect. The same parts and beneficial effects in this embodiment as in the method embodiment will not be described in detail here.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. 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 having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

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Abstract

本申请提供一种多媒体广播多播业务的传输方法、装置、设备及存储介质，该方法包括：核心网设备确定对目标MBMS感兴趣的目标终端；核心网设备确定与目标终端相关的小区；核心网设备向与目标终端相关的小区所属的接入网设备发送第一消息，第一消息用于触发接入网设备确认是否需要接收目标MBMS；如果核心网设备接收到第二信息，则与接入网设备建立针对目标MBMS的广播连接，第二信息用于指示接入网设备需要接收目标MBMS。本申请提高了MBMS传输的灵活性，提高了网络资源利用率。

Description

多媒体广播多播业务的传输方法、装置、设备及存储介质
本申请要求于2020年8月7日提交中国专利局、申请号为202010790282.5、申请名称为“多媒体广播多播业务的传输方法、装置、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种多媒体广播多播业务的传输方法、装置、设备及存储介质。
背景技术
多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)由第三代合作伙伴(3rd Generation Partnership Project，3GPP)计划提出，该业务是从一个数据源向多个终端设备发送数据的技术，能够提高网络资源(尤其是空中接口)的利用率。
MBMS技术只允许核心网设备向预先静态规划好的目标小区或者接入网设备发起多播广播业务(Multicast Broadcast Service，MBS)会话开始过程，使得MBMS的传输受限，网络资源的利用效率不高。
发明内容
本申请提供一种多媒体广播多播业务的传输方法、装置、设备及存储介质，用于解决MBMS传输受限、网络资源的利用效率不高的问题。
第一方面，本申请提供一种多媒体广播多播业务的传输方法，应用于核心网设备，包括：
确定对目标多媒体广播多播业务MBMS感兴趣的目标终端；
确定与所述目标终端相关的小区；
向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，所述方法还包括：
接收来自会话管理功能SMF实体的第三信息，所述第三信息包括所述目标MBMS的标识，所述第三信息用于指示所述目标MBMS的会话开始。
可选的，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，包括：
根据终端设备与MBMS的预设对应关系和所述第三信息，确定对所述目标MBMS感兴趣的目标终端。
可选的，所述确定与所述目标终端相关的小区，包括：
获取预先保存的处于空闲状态的所述目标终端的跟踪区域信息，所述跟踪区域信息包括一个或多个小区。
可选的，所述确定与所述目标终端相关的小区，包括：
获取预先保存的处于非激活状态的所述目标终端和/或处于连接状态的所述目标终端所在的小区。
可选的，所述第一信息具体用于触发所述接入网设备针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼。
可选的，所述向所述接入网设备发送第一信息，包括：
向所述接入网设备发送业务调查请求消息，所述业务调查请求消息包括所述第一信息，所述业务调查请求消息用于调查所述接入网设备是否需要接收所述目标MBMS；
所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
接收来自所述接入网设备的业务调查响应消息，如果业务调查响应消息包括所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
如果接收到来自所述目标终端的所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
如果接收到来自所述接入网设备的业务请求消息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对目标MBMS的广播连接，所述业务请求消息包括所述第二信息，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述业务请求消息还包括对所述接入网设备的寻呼进行响应的目标终端的位置信息，所述方法还包括：
根据所述对所述接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的所述对所述接入网设备的寻呼进行响应的目标终端所在的小区。
第二方面，本申请提供一种多媒体广播多播业务的传输方法，应用于接入网设备，所述方法包括：
接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处 于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述接收来自核心网设备的第一信息，包括：
接收来自所述核心网设备的业务调查请求消息，所述业务调查请求消息包括所述第一信息；
所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回携带所述第二信息的业务调查响应消息。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则接收来自所述目标终端的所述第二信息，将来自所述目标终端的所述第二信息发送至所述核心网设备。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备发送业务请求消息，所述业务请求消息包括所述第二信息。
可选的，所述业务请求消息包括对所述接入网设备的寻呼进行响应的目标终端的位置信息。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息之后，所述方法还包括：
接收来自所述核心网设备的第四信息、并与所述核心网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立；
响应于所述第四信息，针对所述目标MBMS，进行广播多播会话的无线资源配置和数据广播。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果接收到来自所述目标终端的针对所述目标MBMS的连接消息，则向所述核心网设备返回所述第二信息。
第三方面，本申请提供一种核心网设备，包括存储器、收发机和处理器：
所述存储器，用于存储计算机程序；
所述收发机，用于在所述处理器的控制下收发数据；
所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
确定对目标多媒体广播多播业务MBMS感兴趣的目标终端；
确定与所述目标终端相关的小区；
向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，所述处理器还用于：
接收来自会话管理功能SMF实体的第三信息，所述第三信息包括所述目标MBMS的标识，所述第三信息用于指示所述目标MBMS的会话开始。
可选的，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，包括：
根据终端设备与MBMS的预设对应关系和所述第三信息，确定对所述目标MBMS感兴趣的目标终端。
可选的，所述确定与所述目标终端相关的小区，包括：
获取预先保存的处于空闲状态的所述目标终端的跟踪区域信息，所述跟踪区域信息包括一个或多个小区。
可选的，所述确定与所述目标终端相关的小区，包括：
获取预先保存的处于非激活状态的所述目标终端和/或处于连接状态的所述目标终端所在的小区。
可选的，所述第一信息具体用于触发所述接入网设备针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼。
可选的，所述向所述接入网设备发送第一信息，包括：
向所述接入网设备发送业务调查请求消息，所述业务调查请求消息包括所述第一信息，所述业务调查请求消息用于调查所述接入网设备是否需要接收所述目标MBMS；
所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
接收来自所述接入网设备的业务调查响应消息，如果业务调查响应消息包括所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
如果接收到来自所述目标终端的所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果接收到第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
如果接收到来自所述接入网设备的业务请求消息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对目标MBMS的广播连接，所述业务请求消息包括所述第二信息，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述业务请求消息还包括对所述接入网设备的寻呼进行响应的目标终端的位置信息，所述处理器还执行以下操作：
根据所述对所述接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的所述对所述接入网设备的寻呼进行响应的目标终端所在的小区。
第四方面，本申请提供一种接入网设备，包括存储器、收发机和处理器：
所述存储器，用于存储计算机程序；
所述收发机，用于在所述处理器的控制下收发数据；
所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述接收来自核心网设备的第一信息，包括：
接收来自所述核心网设备的业务调查请求消息，所述业务调查请求消息包括所述第一信息；
所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回携带所述第二信息的业务调查响应消息。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则接收来自所述目标终端的所述第二信息，将来自所述目标终端的所述第二信息发送至所述核心网设备。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备发送业务请求消息，所述业务请求消息包括所述第二信息。
可选的，所述业务请求消息包括对所述接入网设备的寻呼进行响应的目标终端的位置 信息。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息之后，所述处理器还用于：
接收来自所述核心网设备的第四信息、并与所述核心网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立；
响应于所述第四信息，针对所述目标MBMS，进行广播多播会话的无线资源配置和数据广播。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
如果接收到来自所述目标终端的针对所述目标MBMS的连接消息，则向所述核心网设备返回所述第二信息。
第五方面，本申请提供了一种多媒体广播多播业务的传输装置，包括：
确定单元，用于确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，确定与所述目标终端相关的小区；
通信单元，用于向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
连接单元，用于如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，所述通信单元还用于：
接收来自会话管理功能SMF实体的第三信息，所述第三信息包括所述目标MBMS的标识，所述第三信息用于指示所述目标MBMS的会话开始。
可选的，所述确定单元，具体用于：
根据终端设备与MBMS的预设对应关系和所述第三信息，确定对所述目标MBMS感兴趣的目标终端。
可选的，所述确定单元，具体用于：
获取预先保存的处于空闲状态的所述目标终端的跟踪区域信息，所述跟踪区域信息包括一个或多个小区。
可选的，所述确定单元，具体用于：
获取预先保存的处于非激活状态的所述目标终端和/或处于连接状态的所述目标终端所在的小区。
可选的，所述第一信息具体用于触发所述接入网设备针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼。
可选的，所述通信单元，具体用于：
向所述接入网设备发送业务调查请求消息，所述业务调查请求消息包括所述第一信息，所述业务调查请求消息用于调查所述接入网设备是否需要接收所述目标MBMS；
可选的，所述连接单元，具体用于：
接收来自所述接入网设备的业务调查响应消息，如果业务调查响应消息包括所述第二 信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述连接单元，具体用于：
如果接收到来自所述目标终端的所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述连接单元，具体用于：
如果接收到来自所述接入网设备的业务请求消息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对目标MBMS的广播连接，所述业务请求消息包括所述第二信息，所述第四信息用于指示所述目标MBMS的会话建立。
可选的，所述业务请求消息还包括对所述接入网设备的寻呼进行响应的目标终端的位置信息，所述装置还包括：
更新单元，用于根据所述对所述接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的所述对所述接入网设备的寻呼进行响应的目标终端所在的小区。
第六方面，本申请提供了一种多媒体广播多播业务的传输装置，包括：
通信单元，用于接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
寻呼单元，用于响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
所述通信单元，还用于如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
可选的，所述通信单元，具体用于：
接收来自所述核心网设备的业务调查请求消息，所述业务调查请求消息包括所述第一信息；
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回携带所述第二信息的业务调查响应消息。
可选的，所述通信单元，具体用于：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则接收来自所述目标终端的所述第二信息，将来自所述目标终端的所述第二信息发送至所述核心网设备。
可选的，所述第二信息携带在来自所述目标终端的非接入层消息中。
可选的，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述通信单元，具体用于：
如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备发送业务请求消息，所述业务请求消息包括所述第二信息。
可选的，所述业务请求消息包括对所述接入网设备的寻呼进行响应的目标终端的位置信息。
可选的，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息之后，所述通信单元，还用于：
接收来自所述核心网设备的第四信息、并与所述核心网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立；
响应于所述第四信息，针对所述目标MBMS，进行广播多播会话的无线资源配置和数据广播。
可选的，所述通信单元，具体用于：
如果接收到来自所述目标终端的针对所述目标MBMS的连接消息，则向所述核心网设备返回所述第二信息。
第七方面，本申请提供一种处理器可读存储介质，处理器可读存储介质存储有计算机程序，计算机程序用于使处理器执行第一方面或第二方面所述的方法。
第八方面，本申请提供一种包含指令的计算机程序产品，当指令在计算机上运行时，使得计算机执行如上述第一方面的方法或者如第二方面的方法。
第九方面，本申请提供一种通信系统，包括如上述第三方面所述的核心网设备、如上述第四方面所述的接入网设备和终端设备。
本申请提供一种多媒体广播多播业务的传输方法和装置，核心网设备确定对目标MBMS感兴趣的目标终端，确定与目标终端相关的小区，向与目标终端相关的小区所属的接入网设备发送第一消息，第一消息用于触发接入网设备确认是否需要接收目标MBMS，如果核心网设备接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，第二信息用于指示接入网设备需要接收目标MBMS，所以在目标MBMS传输中充分考虑接入网设备对目标MBMS的实际需求，提高MBMS传输的灵活性，提高网络资源的利用率。
应当理解，上述发明内容部分中所描述的内容并非旨在限定本发明的实施例的关键或重要特征，亦非用于限制本发明的范围。本发明的其它特征将通过以下的描述变得容易理解。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，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为本申请一实施例提供的应用场景示意图；
图2为本申请一实施例提供的MBMS的SC-PTM模式传输的流程示例图；
图3为本申请一实施例提供的MBMS的另一传输方案的流程示例图；
图4为本申请一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图5为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图6为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图7为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图8为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图9为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程图；
图10为本申请一实施例提供的一种核心网设备的示意图；
图11为本申请一实施例提供的一种接入网设备的示意图；
图12为本申请一实施例提供的一种多媒体广播多播业务的传输装置的示意图；
图13为本申请另一实施例提供的一种多媒体广播多播业务的传输装置的示意图。
具体实施方式
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“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的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
可以理解的，本申请实施例中的各步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。
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。
本申请实施例提供的技术方案可以适用于多种通信系统，尤其是5G系统。例如适用的通信系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、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)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
其中，本申请实施例提供的技术方案所适用的通信系统包括网络设备和终端设备，网络设备可以包括接入网设备和核心网设备。接入网设备比如可以是无线接入网设备。
图1为本申请实施例提供的应用场景的示意图，如图1所示，通信系统包括网络设备 和终端设备，网络设备可以包括无线接入网设备和核心网设备。终端设备通过无线的方式与无线接入网设备连接，无线接入网设备通过无线或有限方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分无线接入网设备的功能。终端设备可以是固定位置的，也可以是可移动的。图1只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继器设备和无线回传设备，在图1中未画出。本申请的实施例对该通信系统中的核心网设备、无线接入网设备和终端设备的数量不做限定。需要说明的是，图1中所示的两个无线接入网设备可以连接到同一核心网设备，也可以连接到不同的核心网设备。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解：
核心网(Core Network，CN)设备：可以是指接入移动管理功能(access and mobility management function，AMF)实体，也可以指会话管理功能(session management function，SMF)实体、移动性管理实体(mobility management entity，MME)或者其它核心网设备。
接入网(access network，AN)设备：例如无线接入网(Radio access network，RAN)设备，是一种将终端设备接入到无线网络的设备，可以是长期演进(long term evolution，LTE)中的演进型基站(evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者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，在此并不限定。一种可能的方式中，无线接入网设备可以是集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)分离架构的基站(如gNB)，CU和During也可以地理上分开布置。
终端设备：可以是无线终端也可以是有线终端，无线终端可以是指一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等，在此不作限定。可以理解的是，本申请实施例中，终端设备也可以称为用户设备(user equipment，UE)。其中，终端设备与RAN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。
多媒体多播广播业务(Multimedia Broadcast Multicast Service，MBMS)：是指将广播数据或多播数据从一个数据源向多个终端设备发送的技术，能够提高网络资源(尤其是空中接口)的利用率。
在MBMS技术中，在一个多播广播业务(Multicast Broadcast Service，MBS)会话开 始时，核心网设备向接入网设备发送会话开始请求消息，以通知接入网设备一个MBS会话即将开始，同时请求与接入网设备之间建立用于传输该MBS会话的承载网。然而，核心网设备只能向预先静态设置好的目标小区或者目标接入网设备发送MBS会话开始请求消息，未充分考虑到终端设备的位置可能发生变化，导致MBMS的传输受限、网络资源利用效率不高，进而导致MBMS的传输效果不佳。其中，一个接入网设备可以管理或管辖一个或多个小区，这里的小区是指一个接入网设备覆盖的地理区域或者部分覆盖的地理区域，例如蜂窝小区，小区内的终端设备可与该小区所属的接入网设备进行通信。
图2为MBMS的单小区点到多点(Single Cell-Point To Multipoint，SC-PTM)模式传输的流程示例图。如图2所示，多小区/多播协调实体(Multi-cell/multicast Coordination Entity，MCE)属于无线接入网中的逻辑节点，MCE可控制一个或多个eNB。在一个MBS会话开始时，CN设备向预先静态规划好的MCE发送MBS会话开始请求消息，MCE向CN设备返回MBS会话开始响应消息，并按照SC-PTM模式建立承载网。MCE向eNB发送MBS会话开始请求消息，eNB接收到该MBS会话请求消息后向MCE返回MBS会话开始响应消息，并触发与UE之间的SC-PTM模式，以与UE之间建立SC-PTM模式的承载网。在上述通信连接建立后，对MBMS感兴趣的UE通过读取单小区多播控制信道(Single Cell Multicast Control Channel，SC-MCCH)信息，获知单小区多媒体广播多播业务的业务信道(Single Cell MBMS Traffic Channel，SC-MTCH)的调度信息，根据该调度信息可在空闲(Idle)状态或者连接(conntected)状态下接收该MBMS。可以看出，图2所示的MBMS的传输过程，需要预先静态设定接收MBS会话开始请求消息的MCE，导致MBMS的传输受限、网络资源利用效率不高。
图3为MBMS的另一个传输方案的流程示例图。如图3所示，移动管理实体(Mobility Management Entity，MME)是无线接入网中的控制节点，用于负责空闲状态下UE的定位、寻呼等过程。在MBS会话开始时，MCE向MCE发送MBS会话开始请求消息，MCE向MCE返回MBS会话开始响应消息，并向eNB发送MBS会话开始请求消息，在接收到来自eNB的会话开始响应消息后，MCE向eNB发送MBMS调度消息。eNB接收到MBMS调度消息时向MCE返回MBMS调度消息响应，向UE通知MBS会话开始，同时加入MBS会话地址，以接收用户面(User Plane)数据，并将接收到的数据同步发送至多个UE。可以看出，图3所示的MBMS的传输过程，由来自MCE的MBS会话开始请求消息以及MBMS调度消息来触发eNB针对UE建立MBMS的传输机制，同样需要预先静态设定接收MCE的MBS会话开始请求消息以及MBMS调度消息的eNB，导致MBMS的传输受限、网络资源利用效率不高。
为了灵活表达，后续出现的会话或MBMS的会话或者目标MBMS的会话，与上述的MBS会话的含义相同。
为解决上述问题，本申请实施例提供了一种多媒体广播多播业务的传输方法、装置、设备及介质。在本申请实施例提供的多媒体广播多播业务的传输方法中，核心网设备在目标MBMS的传输过程中，确定对目标MBMS感兴趣的目标终端，确定与目标终端相关的小区，向与目标终端相关的小区所属的接入网设备发送第一信息，该第一信息用于触发接入网设备确认是否需要接收目标MBMS，如果接收到用于指示接入网设备需要接收目标MBMS的来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS 的广播连接。因此，核心网设备与实际需要接收目标MBMS的接入网设备建立针对目标MBMS的广播连接，而非每次进行MBMS传输时都与静态设定的固定的接入网设备建立广播连接，有效地提高了MBMS的传输灵活性，提高了网络资源的利用效率，进而有效地提高了MBMS的传输效果。其中，本申请实施例所提供的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。
图4为本申请一实施例提供的多媒体广播多播业务的传输方法的流程示意图，本实施例的方法可以由上述核心网设备一侧执行。如图4所示，本实施例的方法可以包括：
S401、确定对目标MBMS感兴趣的目标终端。
本实施例中，核心网设备在接收到目标MBMS的情况下，可根据预先保存的终端设备与MBMS的预设对应关系，确定对目标MBMS感兴趣的目标终端。其中，在终端设备与MBMS的预设对应关系中，与目标MBMS对应的终端设备为对目标MBMS感兴趣的目标终端。
在一种可能的实施方式中，核心网设备接收来自SMF实体的第三信息，第三信息用来指示目标MBMS的会话开始。核心网设备在接收到指示目标MBMS会话开始的第三信息的情况下，确定对目标MBMS感兴趣的目标终端，以通过第三信息的接收来触发核心网设备进行目标MBMS的传输。
可选的，第三信息包括目标MBMS的标识。在一种可能的实施方式中，可根据终端设备与MBMS的预设对应关系和第三信息中目标MBMS的标识，在终端设备与MBMS的预设对应关系中，查找到目标MBMS的标识所对应的终端设备，得到与目标MBMS对应的终端设备，即对目标MBMS感兴趣的目标终端。此外，目标MBMS的标识可包括目标MBMS的业务标识和/或会话标识，其中，目标MBMS的业务标识唯一，目标MBMS可能包括一个或多个会话，每个会话都有唯一的会话标识。
可选的，核心网设备可通过AMF实体接收到目标MBMS，AMF实体接收到目标MBMS时确定对目标MBMS感兴趣的目标终端。
可选的，AMF实体可接收来自SMF实体的会话开始消息，该会话开始消息包括第三信息。此外，AMF实体还可接收来自类似SMF实体的其它实体的会话开始消息。
可选的，第三信息还可包括服务质量(Quality of Service，QOS)、多播地址等信息，以便核心网设备和接入网设备还可依据第三信息建立广播连接。
S402、确定与目标终端相关的小区。
本实施例中，针对与核心网设备处于连接状态的目标终端，核心网设备在接收到目标MBMS时，即可直接确定处于连接状态的目标终端所连接的接入网设备，并确定这些接入网设备是需要接收目标MBMS的接入网设备，因此可直接向处于连接状态的目标终端所连接的接入网设备发送目标MBMS的会话开始请求，实现目标MBMS的传输。
本实施例中，针对处于空闲状态或者非激活状态(in-active)的目标终端，核心网设备无法准确得知目标终端所在的小区，也无法准确得知目标终端连接或将连接的接入网设备，更无法确定这些接入网设备是否需要接收目标MBMS。因此，针对与核心网设备处于空闲状态或者处于非激活状态的目标终端，核心网设备在确定目标终端后，可确定目标终端可能在的小区，将目标终端可能在的小区确定为与目标终端相关的小区。例如，可通过 目标终端的历史活动轨迹、历史活动范围或者历史地理位置等等，确定目标终端可能在的小区。
其中，连接状态、空闲状态和非激活状态又可分别被称为连接模式、空闲模式和非激活模式。在连接状态下，目标终端通过无线接入网设备与核心网设备保持通信，相互传输的数据量较大、耗电量较高，核心网设备可以通过无线接入网设备实时获得目标终端所在的小区；在空闲状态下，目标终端与无线接入网断开网络连接，核心网设备和无线接入网设备都无法得知目标终端所在的小区；在非激活状态，目标终端与无线接入网连接、但未接入核心网设备，目标终端只保留部分的无线接入网上下文，无线接入网也只保留部分的目标终端上下文，无法准确的得知目标终端所在的小区，在被寻呼时，目标终端能够快速地从非激活状态转移到连接状态。
S403、向与目标终端相关的小区所属的接入网设备发送第一信息，第一信息用于触发接入网设备确认是否需要接收目标MBMS。
本申请实施例中，在确定与目标终端相关的小区后，核心网设备可向与目标终端相关的小区所属的接入网设备发送第一信息，第一信息用于触发接入网设备确认是否需要接收目标MBMS。其中，第一信息可包括目标MBMS和与目标终端相关的小区。例如，第一信息包括目标MBMS的标识(业务标识和/或会话标识)和与目标终端相关的小区，其中，目标MBMS的标识可为单个标识也可为多个标识构成的标识列表，与目标终端相关的小区可以为单个小区也可以为多个小区构成的小区列表。又如，第一信息包括目标MBMS的会话列表和与目标终端相关的小区，一个目标MBMS的会话列表包括一个业务标识和一个或者多个会话标识。因此，接入网设备可依据第一信息在相应的小区内确定目标终端是否需要接收目标MBMS，进而确定接入网设备自身是否需要接收目标MBMS。
可选的，第一信息具体用于触发接入网设备针对目标MBMS对目标终端进行寻呼，接入网设备在接收到第一信息后，在第一信息中确定属于自身管辖的小区，在确定的小区内对处于空闲状态的目标终端和/或处于未激活状态的目标终端进行寻呼，以唤起空闲状态的目标终端和/或未激活状态的目标终端通过接入网设备与核心网设备建立通信连接，从空闲状态或者非激活状态转换为连接状态。接入网设备可根据空闲状态的目标终端和/或未激活状态的目标终端对寻呼的响应，也即根据目标终端的唤起情况，确定自身是否需要接收目标MBMS。
S404、如果接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，第二信息用于指示接入网设备需要接收目标MBMS。
具体的，如果核心网设备接收到来自接入网设备的第二信息、或者目标终端设备通过接入网设备发送的第二信息，则表示接入网设备所管辖的小区内存在对目标MBMS感兴趣的目标终端，也即接入网设备是实际需要接收目标MBMS的。因此，核心网设备与接入网设备建立针对目标MBMS的广播连接，以通过该广播连接传输目标MBMS。其中，第二信息用于指示接入网设备需要接收目标MBMS。
本申请实施例中，核心网设备确定对目标MBMS感兴趣的目标终端，确定与目标终端相关的小区，通过向小区所属的接入网设备发送第一信息，以触发接入网设备确定自身是否需要接收目标MBMS，核心网设备若接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，从而在目标MBMS传输中充分考虑接 入网设备对目标MBMS的实际需求，提高MBMS传输的灵活性，提高网络资源的利用率。
在一些实施例中，核心网设备中预先保存有终端设备的跟踪区域信息，其中，跟踪区域信息包括一个或多个小区。在目标终端包括处于空闲状态的目标终端的情况下，核心网设备可获取预先保存的处于空闲状态的目标终端的跟踪区域信息，针对各处于空闲状态的目标终端，将目标终端的跟踪区域信息中的小区，确定为与目标终端相关的小区，从而提高与处于空闲状态的目标终端相关的小区的确定过程的准确度。
本实施例中，跟踪区域信息包括一个或多个小区，是指跟踪区域信息包括一个或多个小区的名称、地理位置和/或标识，每个终端设备可分别对应一个跟踪区域信息，该跟踪区域信息中的小区为终端设备经常在的小区。在目标终端处于空闲状态时，核心网设备无法知道目标终端所在的小区，因此，可以获取预先保存的处于空闲状态的目标终端的跟踪区域信息，将处于空闲状态的目标终端的跟踪区域信息中一个或多个小区，确定为与处于空闲状态的目标终端相关的小区。
可选的，目标终端的跟踪区域信息为目标终端的跟踪区域标识(Tracking Area Identity，TAI)或者跟踪区域标识列表(Tracking Area Identity list，TAI list)，其中，TAI为LTE系统中的跟踪区域标识，全球唯一，用于终端设备的位置管理。每个小区只属于一个跟踪区域。因此，依据目标终端的TAI，确定与目标终端有关的小区，提高接入网设备确定过程的准确度。
在一些实施例中，针对处于连接状态的目标终端和/或处于非激活状态的目标终端，核心网设备可获取预先保存的目标终端所在的小区，将预先保存的目标终端所在的小区，确定与目标终端相关的小区。
在本实施例中，核心网设备可以通过接入网设备实时获取处于连接状态的目标终端所在的小区。处于非激活状态的目标终端对于核心网设备来说相当于处于休眠状态，以节省目标终端的电量、流量等，在历史时间中核心网设备可保存非激活状态的目标终端转换为连接状态时所在的小区。因此，核心网设备可以获取预先保存的处于非激活状态的目标终端所在的小区。在获得目标终端所在的小区后，可将目标终端所在的小区确定为与目标终端相关的小区。
图5示出了本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程示意图，本实施例的方法可以由上述接入网设备一侧执行。如图5所示，本实施例的方法可以包括：
S501、接收来自核心网设备的第一信息。
其中，第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，目标终端为对目标MBMS感兴趣的终端设备。对第一信息的描述可参见图5所示实施例的描述，不再赘述。
S502、响应于第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼。
本实施例中，在接收到第一信息后，接入网设备可在第一信息中处于空闲状态的目标终端和/或处于非激活状态的目标终端可能出现的小区中，确定属于自身所管辖的小区。在确定的属于自身所管辖的小区内，针对目标MBMS，对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼，以唤起对目标MBMS感兴趣的处于空闲状态的目标 终端和/或处于非激活状态的目标终端。
本实施例中，在寻呼后，对目标MBMS感兴趣的处于空闲状态的目标终端和/或处于非激活状态的目标终端，会针对目标MBMS通过接入网设备与核心网设备建立通信连接，以接收来自核心网设备的目标MBMS。因此，接入网设备可根据目标终端对接入网设备寻呼的响应情况，确定是否需要接收目标MBMS。
在一种可能的实现方式中，寻呼后如果接入网设备接收到来自目标终端的针对目标MBMS的连接消息，则接入网设备确定需要接收目标MBMS，向核心网设备返回第二信息，否则接入网设备确定不需要接收目标MBMS，以提高接入网设备确定是否需要接收目标MBMS的准确度。
S503、如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息。
其中，第二信息用于指示接入网设备需要接收目标MBMS。
在本实施例中，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，以便核心网设备根据第二信息得知接入网设备需要接收目标MBMS、并与接入网设备建立目标MBMS的会话。
本申请实施例中，接入网设备在接收到第一信息后，对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼，根据目标终端对寻呼的响应情况确定自身是否接收目标MBMS，若需要，则通过第二信息告知核心网设备，从而在目标MBMS传输中充分考虑接入网设备对目标MBMS的实际需求，提高MBMS传输的灵活性，提高网络资源的利用率。
基于图4和图5所示实施例，图6为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程示意图，在图6中示出了核心网设备、接入网设备以及目标终端的交互过程。如图6所示，本实施例的方法可以包括：
S601、核心网设备确定对目标MBMS感兴趣的目标终端。
S602、核心网设备确定与目标终端相关的小区。
S603、核心网设备向与目标终端相关的小区所属的接入网设备发送第一信息。
S604、接入网设备响应于来自核心网设备的第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或非激活状态的目标终端进行寻呼。
S605、处于空闲状态的目标终端和/或非激活状态的目标终端对接入网设备的寻呼进行响应。
S606、接入网设备根据目标终端对接入网设备寻呼的响应情况，确定是否需要接收目标MBMS。
S607、接入网设备如果确定需要接收目标MBMS，则向核心网设备返回第二信息。
S608、核心网设备如果接收到第二信息，则与接入网设备建立针对目标MBMS的广播连接。
本实施例中，S601-S608的具体实施和效果可参见图4和图5所示实施例中实施过程和效果的描述，不再赘述。
图7为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程示意图，在图7中示出了核心网设备、接入网设备以及目标终端的交互过程。如图7所示，本实施 例的方法可以包括：
S701、核心网设备确定对目标MBMS感兴趣的目标终端。
S702、核心网设备确定与目标终端相关的小区。
S703、核心网设备向与目标终端相关的小区所属的接入网设备发送业务调查请求消息。
其中，业务调查请求消息包括第一信息，业务调查请求消息用于调查接入网设备是否需要接收目标MBMS。
S704、接入网设备响应于来自核心网设备的业务调查请求消息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或非激活状态的目标终端进行寻呼。
本实施例中，接入网设备在接收到业务调查请求消息后，可根据业务调查请求消息中的第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或非激活状态的目标终端进行寻呼。
S705、处于空闲状态的目标终端和/或非激活状态的目标终端对接入网设备的寻呼进行响应。
S706、接入网设备根据目标终端对接入网设备寻呼的响应情况，确定是否需要接收目标MBMS。
S707、接入网设备如果确定需要接收目标MBMS，则向核心网设备返回携带第二信息的业务调查响应消息，否则返回不携带第二信息的业务调查响应消息。
其中，接入网设备返回给核心网设备的业务调查响应消息，用于向核心网设备反馈接入网设备是否需要接收目标MBMS。
S708、如果业务调查响应消息包括第二信息，则核心网设备向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接。
其中，第四信息用于指示目标MBMS的会话建立。
本实施例中，如果业务调查响应消息包括第二信息，则核心网设备向接入网设备发送第四信息，并与接入网设备建立针对目标MBMS的广播连接，以与接入网设备进行目标MBMS的会话。
可选的，针对目标MBMS的广播连接为SMF实体与接入网设备之间基于N3接口的广播连接。
S709、接入网设备响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。
本实施例中，接入网设备响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。其中，进行广播多播会话的无线资源配置例如通过分配和调制无线传输和网络资源，确保不同的目标终端接收到的目标MBMS的会话的同步性和信号质量。
本申请实施例中各步骤的实施内容可参照上述各方法实施例对应步骤或操作的描述，重复内容不再赘述。
本申请实施例中，核心网设备通过业务调查方式，调查与目标终端相关的小区所属的接入网设备是否需要接收目标MBMS，接入网设备通过业务调查响应方式返回给核心网设备结果，从而在目标MBMS的传输中，充分考虑到接入网设备对目标MBMS的实际需要， 提高MBMS传输的灵活性，提高网络资源的利用率。
图8为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程示意图，在图8中示出了核心网设备、接入网设备以及目标终端的交互过程。如图8所示，本实施例的方法可以包括：
S801、核心网设备确定对目标MBMS感兴趣的目标终端。
S802、核心网设备确定与目标终端相关的小区。
S803、核心网设备向与目标终端相关的小区所属的接入网设备发送第一信息。
S804、接入网设备响应于来自核心网设备的第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或非激活状态的目标终端进行寻呼。
可选的，核心网设备向接入网设备发送业务调查请求消息，以调查接入网设备是否需要接收目标MBMS，接入网设备接收到业务调查消息后，可向核心网设备返回业务调查确认消息，以表示自身接收到核心网设备的业务调查请求消息，同时对目标终端进行寻呼。其中，业务调查确认消息不包括调查的结果，业务调查请求消息中包括第一信息。
S805、处于空闲状态的目标终端和/或非激活状态的目标终端对接入网设备的寻呼进行响应。
S806、处于空闲状态的目标终端和/或非激活状态的目标终端在响应接入网设备的寻呼后，向核心网设备发送第二信息。
本实施例中，处于空闲状态的目标终端和/或非激活状态的目标终端在被寻呼后，会针对目标MBMS通过接入网设备与核心网设备建立通信连接，以接收来自核心网设备的目标MBMS。因此，处于空闲状态的目标终端和/或非激活状态的目标终端，在针对目标MBMS通过接入网设备与核心网设备建立通信连接后，可向核心网设备发送第二信息，其中，第二信息的相关内容可参见上述各方法实施例的相关描述。
可选的，目标终端可通过向核心网设备发送非接入层(Non-Access Stratum，NAS)消息，实现向核心网设备发送第二信息，其中，第二信息携带在NAS消息中。或者，目标终端可与核心网设备建立协议数据单元(Protocol Data Unit，PUD)会话，通过PUD会话实现向核心网设备发送第二信息。
S807、核心网设备响应于接收到的第二信息，向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接。
S808、接入网设备响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。
本申请实施例中各步骤的实施内容可参照上述各方法实施例对应步骤或操作的描述，重复内容不再赘述。
本申请实施例中，核心网设备通过业务调查方式，调查与目标终端相关的小区所属的接入网设备是否需要接收目标MBMS，接入网设备通过业务调查响应方式返回给核心网设备结果，从而在目标MBMS的传输中，充分考虑到接入网设备对目标MBMS的实际需要，提高MBMS传输的灵活性，提高网络资源的利用率。
图9为本申请另一实施例提供的一种多媒体广播多播业务的传输方法的流程示意图，在图9中示出了核心网设备、接入网设备以及目标终端的交互过程。如图9所示，本实施例的方法可以包括：
S901、核心网设备确定对目标MBMS感兴趣的目标终端。
其中，目标终端包括处于连接状态的目标终端和/或处于未激活状态的目标终端。
S902、核心网设备确定与目标终端相关的小区。
S903、核心网设备向与目标终端相关的小区所属的接入网设备发送第一信息。
其中，第一信息用于触发接入网设备针对目标MBMS对处于非激活状态的目标终端进行寻呼之外和指示目标MBMS的会话建立。
本实施例中，由于目标终端包括处于连接状态的目标终端和/或处于未激活状态的目标终端，核心网设备确定与处于连接状态的目标终端相关小区所属的接入网设备是需要接收目标MBMS的，而与处于未激活状态的目标终端相关的小区所属的接入网设备，能够唤起处于未激活状态的目标终端的概率也较高。因此核心网设备可直接向接入网设备发送可用于指示目标MBMS的会话建立的第一信息，以提高目标MBMS会话的建立效率。
S904、接入网设备响应于来自核心网设备的第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于非激活状态的目标终端进行寻呼。
S905、处于空闲状态的目标终端和/或非激活状态的目标终端对接入网设备的寻呼进行响应。
S906、接入网设备根据目标终端对接入网设备寻呼的响应情况，确定是否需要接收目标MBMS。
S907、接入网设备如果确定需要接收目标MBMS，则向核心网设备返回携带第二信息的业务请求消息。
本实施例中，业务请求消息用于向核心网设备指示继续目标MBMS的会话建立过程。
可选的，业务请求消息还包括对接入网设备的寻呼进行响应的目标终端的位置信息。在一种可能的实施方式中，根据业务请求消息中对接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的对接入网设备的寻呼进行响应的目标终端所在的小区，从而提高保存的处于非激活状态的目标终端所在的小区的准确度，进而提高与目标终端相关的小区所属的接入网设备的确认过程的准确度。其中，目标终端的位置信息可包括目标终端的地理位置和/或目标终端所在的小区的地理位置。
S908、核心网设备响应于接收到来自接入网设备的业务请求消息，向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接。
S909、接入网设备响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。
本申请实施例中各步骤的实施内容可参照上述各方法实施例对应步骤或操作的描述，重复内容不再赘述。
本申请实施例中，核心网设备通过第一信息，指示接入网设备对处于未激活状态的目标终端进行寻呼、并指示接入网设备建立目标MDMS的会话，接入网设备通过返回业务请求消息的方式，告诉核心网设备继续目标MDMS会话，从而在目标MBMS的传输中，既充分考虑到接入网设备对目标MBMS的实际需要，提高MBMS传输的灵活性，提高网络资源的利用率，又确保MBMS传输的效率。
本申请实施例提供了一种核心网设备，如图10所示，本实施例的核心网设备可以为网络设备，核心网设备包括：收发机1001、处理器1002和存储器1003。
收发机1001，用于在处理器1002的控制下接收和发送数据。
其中，在图10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1002代表的一个或多个处理器和存储器1003代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、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。总线接口提供接口。收发机1001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1002负责管理总线架构和通常的处理，存储器1003可以存储处理器1002在执行操作时所使用的数据。
处理器1002可以是CPU、ASIC、FPGA或CPLD，处理器1002也可以采用多核架构。处理器1002与存储器1003也可以物理上分开布置。
处理器1002通过调用存储器1003存储的计算机程序，用于按照获得的可执行指令执行以下操作：
确定对目标多媒体广播多播业务MBMS感兴趣的目标终端；
确定与目标终端相关的小区；
向小区所属的接入网设备发送第一信息，第一信息用于触发接入网设备确认是否需要接收目标MBMS；
如果接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，第二信息用于指示接入网设备需要接收目标MBMS。
可选的，确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，处理器1002还用于：
接收来自会话管理功能SMF实体的第三信息，第三信息包括目标MBMS的标识，第三信息用于指示目标MBMS的会话开始。
可选的，确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，包括：
根据终端设备与MBMS的预设对应关系和第三信息，确定对目标MBMS感兴趣的目标终端。
可选的，确定与目标终端相关的小区，包括：
获取预先保存的处于空闲状态的目标终端的跟踪区域信息，跟踪区域信息包括一个或多个小区。
可选的，确定与目标终端相关的小区，包括：
获取预先保存的处于非激活状态的目标终端和/或处于连接状态的目标终端所在的小区。
可选的，第一信息具体用于触发接入网设备针对目标MBMS对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼。
可选的，向接入网设备发送第一信息，包括：
向接入网设备发送业务调查请求消息，业务调查请求消息包括第一信息，业务调查请求消息用于调查接入网设备是否需要接收目标MBMS；
如果接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，包括：
接收来自接入网设备的业务调查响应消息，如果业务调查响应消息包括第二信息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立。
可选的，如果接收到来自接入网设备或者目标终端的第二信息，则与接入网设备建立针对目标MBMS的广播连接，包括：
如果接收到来自目标终端的第二信息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立。
可选的，第二信息携带在来自目标终端的非接入层消息中。
可选的，第一信息用于指示目标MBMS的会话建立和触发接入网设备针对目标MBMS对处于非激活状态的目标终端进行寻呼，如果接收到第二信息，则与接入网设备建立针对目标MBMS的广播连接，包括：
如果接收到来自接入网设备的业务请求消息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，业务请求消息包括第二信息，第四信息用于指示目标MBMS的会话建立。
可选的，业务请求消息还包括对接入网设备的寻呼进行响应的目标终端的位置信息，处理器还执行以下操作：
根据对接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的对接入网设备的寻呼进行响应的目标终端所在的小区。
在此需要说明的是，本申请提供的上述装置，能够实现上述方法实施例中核心网设备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。
本申请实施例提供了一种接入网设备，如图11所示，本实施例的接入网设备可以为网络设备，接入网设备包括：收发机1101、处理器1102和存储器1103。
收发机1101，用于在处理器1102的控制下接收和发送数据。
其中，在图11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1102代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、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。总线接口提供接口。收发机1101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1102负责管理总线架构和通常的处理，存储器1103可以存储处理器1102在执行操作时所使用的数据。
处理器1102可以是CPU、ASIC、FPGA或CPLD，处理器1102也可以采用多核架构。处理器1102与存储器1103也可以物理上分开布置。
处理器1102通过调用存储器1103存储的计算机程序，用于按照获得的可执行指令执行以下操作：
接收来自核心网设备的第一信息，第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，目标终端为对目标MBMS感兴趣的终端设备；
响应于第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼；
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，第二信息用于指示接入网设备需要接收目标MBMS。
可选的，接收来自核心网设备的第一信息，包括：
接收来自核心网设备的业务调查请求消息，业务调查请求消息包括第一信息；
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息包括：
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回携带第二信息的业务调查响应消息。
可选的，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，包括：
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则接收来自目标终端的第二信息，将来自目标终端的第二信息发送至核心网设备。
可选的，第二信息携带在来自目标终端的非接入层消息中。
可选的，第一信息用于指示目标MBMS的会话建立和触发接入网设备针对目标MBMS对处于非激活状态的目标终端进行寻呼，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，包括：
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备发送业务请求消息，业务请求消息包括第二信息。
可选的，业务请求消息包括对接入网设备的寻呼进行响应的目标终端的位置信息。
可选的，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息之后，处理器1102还用于：
接收来自核心网设备的第四信息、并与核心网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立；
响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。
可选的，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，包括：
如果接收到来自目标终端的针对目标MBMS的连接消息，则向核心网设备返回第二信息。
在此需要说明的是，本申请提供的上述装置，能够实现上述方法实施例中接入网设备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。
在核心网设备一侧，本申请一实施例提供了一种多媒体广播多播业务的传输装置，如图12所示，本实施例中多媒体广播多播业务的传输装置1200包括：确定单元1201、通信单元1202和连接单元1203。
确定单元1201，用于确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，确定与目标终端相关的小区；
通信单元1202，用于向与目标终端相关的小区所属的接入网设备发送第一信息，第一信息用于触发接入网设备确认是否需要接收目标MBMS；
连接单元1203，用于如果接收到来自接入网设备或者目标终端的第二信息，则与接入 网设备建立针对目标MBMS的广播连接，第二信息用于指示接入网设备需要接收目标MBMS。
可选的，确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，通信单元1202还用于：
接收来自会话管理功能SMF实体的第三信息，第三信息包括目标MBMS的标识，第三信息用于指示目标MBMS的会话开始。
可选的，确定单元1201，具体用于：
根据终端设备与MBMS的预设对应关系和第三信息，确定对目标MBMS感兴趣的目标终端。
可选的，确定单元1201，具体用于：
获取预先保存的处于空闲状态的目标终端的跟踪区域信息，跟踪区域信息包括一个或多个小区。
可选的，确定单元1201，具体用于：
获取预先保存的处于非激活状态的目标终端和/或处于连接状态的目标终端所在的小区。
可选的，第一信息具体用于触发接入网设备针对目标MBMS对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼。
可选的，通信单元1202，具体用于：
向接入网设备发送业务调查请求消息，业务调查请求消息包括第一信息，业务调查请求消息用于调查接入网设备是否需要接收目标MBMS；
连接单元1203，具体用于：
接收来自接入网设备的业务调查响应消息，如果业务调查响应消息包括第二信息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立。
可选的，连接单元1203，具体用于：
如果接收到来自目标终端的第二信息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立。
可选的，第二信息携带在来自目标终端的非接入层消息中。
可选的，第一信息用于指示目标MBMS的会话建立和触发接入网设备针对目标MBMS对处于非激活状态的目标终端进行寻呼，连接单元1203，具体用于：
如果接收到来自接入网设备的业务请求消息，则向接入网设备发送第四信息、并与接入网设备建立针对目标MBMS的广播连接，业务请求消息包括第二信息，第四信息用于指示目标MBMS的会话建立。
可选的，业务请求消息还包括对接入网设备的寻呼进行响应的目标终端的位置信息，多媒体广播多播业务的传输装置1200还包括：
更新单元，用于根据对接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的对接入网设备的寻呼进行响应的目标终端所在的小区。
在接入网设备一侧，本申请一实施例提供了一种多媒体广播多播业务的传输装置，如图13所示，本实施例中多媒体广播多播业务的传输装置包括：通信单元1301和寻呼单元 1302。
通信单元1301，用于接收来自核心网设备的第一信息，第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，目标终端为对目标MBMS感兴趣的终端设备；
寻呼单元1302，用于响应于第一信息，在接入网设备所管辖的小区内针对目标MBMS对处于空闲状态的目标终端和/或处于非激活状态的目标终端进行寻呼；
通信单元1301，还用于如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息，第二信息用于指示接入网设备需要接收目标MBMS。
可选的，通信单元1301，具体用于：
接收来自核心网设备的业务调查请求消息，业务调查请求消息包括第一信息；
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回携带第二信息的业务调查响应消息。
可选的，通信单元1301，具体用于：
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则接收来自目标终端的第二信息，将来自目标终端的第二信息发送至核心网设备。
可选的，第二信息携带在来自目标终端的非接入层消息中。
可选的，第一信息用于指示目标MBMS的会话建立和触发接入网设备针对目标MBMS对处于非激活状态的目标终端进行寻呼，通信单元1301，具体用于：
如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备发送业务请求消息，业务请求消息包括第二信息。
可选的，业务请求消息包括对接入网设备的寻呼进行响应的目标终端的位置信息。
可选的，如果根据目标终端对接入网设备寻呼的响应情况确定需要接收目标MBMS，则向核心网设备返回第二信息之后，通信单元1301，还用于：
接收来自核心网设备的第四信息、并与核心网设备建立针对目标MBMS的广播连接，第四信息用于指示目标MBMS的会话建立；
响应于第四信息，针对目标MBMS，进行广播多播会话的无线资源配置和数据广播。
可选的，通信单元1301，具体用于：
如果接收到来自目标终端的针对目标MBMS的连接消息，则向核心网设备返回第二信息。
在此需要说明的是，本申请提供的上述装置，能够实现上述方法实施例中核心网设备或接入网设备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。
需要说明的是，本申请实施例中对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单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述集成的单元如果以软件功能单元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，本申请的技术方案本质上或者说对现有技术做出贡献的部分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所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。
在核心网设备一侧，本申请实施例提供了一种处理器可读存储介质，处理器可读存储介质存储有计算机程序，计算机程序用于使处理器执行本申请实施例提供的有关核心网设备的任一所述的方法，使得处理器能够实现上述方法实施例中接入网设备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。
在接入网设备一侧，本申请实施例提供了一种处理器可读存储介质，处理器可读存储介质存储有计算机程序，计算机程序用于使处理器执行本申请实施例提供的有关接入网设备的任一所述的方法，使得处理器能够实现上述方法实施例中接入网设备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。
所述处理器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。
在核心网设备一侧，本申请的一实施例还提供一种包含指令的计算机程序产品，所述计算机程序存储在存储介质中，至少一个处理器可以从所述存储介质中读取所述计算机程序，所述至少一个处理器执行所述计算机程序时可实现上述方法实施例中核心网设备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。
在接入网设备一侧，本申请的一实施例还提供一种包含指令的计算机程序产品，所述计算机程序存储在存储介质中，至少一个处理器可以从所述存储介质中读取所述计算机程序，所述至少一个处理器执行所述计算机程序时可实现上述方法实施例中接入网设备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。
本申请实施例还提供一种通信系统，包括核心网设备、接入网设备和终端设备。核心网设备为上述装置实施例所述的核心网设备，能够执行上述方法实施例中核心网设备所执行的所有方法步骤，且能够达到相同的技术效果。接入网设备为上述装置实施例所述的接入网设备，能够执行上述方法实施例中接入网设备所执行的所有方法步骤，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。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、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、装置、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 (41)

  1. 一种多媒体广播多播业务的传输方法，应用于核心网设备，其特征在于，该方法包括：
    确定对目标多媒体广播多播业务MBMS感兴趣的目标终端；
    确定与所述目标终端相关的小区；
    向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
    如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  2. 根据权利要求1所述的方法，其特征在于，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，所述方法还包括：
    接收来自会话管理功能SMF实体的第三信息，所述第三信息包括所述目标MBMS的标识，所述第三信息用于指示所述目标MBMS的会话开始。
  3. 根据权利要求2所述的方法，其特征在于，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，包括：
    根据终端设备与MBMS的预设对应关系和所述第三信息，确定对所述目标MBMS感兴趣的目标终端。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述确定与所述目标终端相关的小区，包括：
    获取预先保存的处于空闲状态的所述目标终端的跟踪区域信息，所述跟踪区域信息包括一个或多个小区。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述确定与所述目标终端相关的小区，包括：
    获取预先保存的处于非激活状态的所述目标终端和/或处于连接状态的所述目标终端所在的小区。
  6. 根据权利要求1-4任一项所述的方法，其特征在于，所述第一信息具体用于触发所述接入网设备针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述向所述接入网设备发送第一信息，包括：
    向所述接入网设备发送业务调查请求消息，所述业务调查请求消息包括所述第一信息，所述业务调查请求消息用于调查所述接入网设备是否需要接收所述目标MBMS；
    所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    接收来自所述接入网设备的业务调查响应消息，如果业务调查响应消息包括所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
  8. 根据权利要求1-6任一项所述的方法，其特征在于，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    如果接收到来自所述目标终端的所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指 示所述目标MBMS的会话建立。
  9. 根据权利要求8所述的方法，其特征在于，所述第二信息携带在来自所述目标终端的非接入层消息中。
  10. 根据权利要求1-6任一项所述的方法，其特征在于，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    如果接收到来自所述接入网设备的业务请求消息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对目标MBMS的广播连接，所述业务请求消息包括所述第二信息，所述第四信息用于指示所述目标MBMS的会话建立。
  11. 根据权利要求10所述的方法，其特征在于，所述业务请求消息还包括对所述接入网设备的寻呼进行响应的目标终端的位置信息，所述方法还包括：
    根据所述对所述接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的所述对所述接入网设备的寻呼进行响应的目标终端所在的小区。
  12. 一种多媒体广播多播业务的传输方法，应用于接入网设备，其特征在于，所述方法包括：
    接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
    响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  13. 根据权利要求12所述的方法，其特征在于，所述接收来自核心网设备的第一信息，包括：
    接收来自所述核心网设备的业务调查请求消息，所述业务调查请求消息包括所述第一信息；
    所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回携带所述第二信息的业务调查响应消息。
  14. 根据权利要求12或13所述的方法，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则接收来自所述目标终端的所述第二信息，将来自所述目标终端的所述第二信息发送至所述核心网设备。
  15. 根据权利要求14所述的方法，其特征在于，所述第二信息携带在来自所述目标终端的非接入层消息中。
  16. 根据权利要求12所述的方法，其特征在于，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备发送业务请求消息，所述业务请求消息包括所述第二信息。
  17. 根据权利要求16所述的方法，其特征在于，所述业务请求消息包括对所述接入网设备的寻呼进行响应的目标终端的位置信息。
  18. 根据权利要求12-17任一项所述的方法，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息之后，所述方法还包括：
    接收来自所述核心网设备的第四信息、并与所述核心网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立；
    响应于所述第四信息，针对所述目标MBMS，进行广播多播会话的无线资源配置和数据广播。
  19. 根据权利要求12-17任一项所述的方法，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果接收到来自所述目标终端的针对所述目标MBMS的连接消息，则向所述核心网设备返回所述第二信息。
  20. 一种核心网设备，其特征在于，包括存储器、收发机和处理器：
    所述存储器，用于存储计算机程序；
    所述收发机，用于在所述处理器的控制下收发数据；
    所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    确定对目标多媒体广播多播业务MBMS感兴趣的目标终端；
    确定与所述目标终端相关的小区；
    向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
    如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  21. 根据权利要求20所述的设备，其特征在于，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端之前，所述处理器还用于：
    接收来自会话管理功能SMF实体的第三信息，所述第三信息包括所述目标MBMS的标识，所述第三信息用于指示所述目标MBMS的会话开始。
  22. 根据权利要求21所述的设备，其特征在于，所述确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，包括：
    根据终端设备与MBMS的预设对应关系和所述第三信息，确定对所述目标MBMS感兴趣的目标终端。
  23. 根据权利要求20-22任一项所述的设备，其特征在于，所述确定与所述目标终端相关的小区，包括：
    获取预先保存的处于空闲状态的所述目标终端的跟踪区域信息，所述跟踪区域信息包括一个或多个小区。
  24. 根据权利要求20-23任一项所述的设备，其特征在于，所述确定与所述目标终端相关的小区，包括：
    获取预先保存的处于非激活状态的所述目标终端和/或处于连接状态的所述目标终端所在的小区。
  25. 根据权利要求20-23任一项所述的设备，其特征在于，所述第一信息具体用于触发所述接入网设备针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼。
  26. 根据权利要求20-25任一项所述的设备，其特征在于，所述向所述接入网设备发送第一信息，包括：
    向所述接入网设备发送业务调查请求消息，所述业务调查请求消息包括所述第一信息，所述业务调查请求消息用于调查所述接入网设备是否需要接收所述目标MBMS；
    所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    接收来自所述接入网设备的业务调查响应消息，如果业务调查响应消息包括所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
  27. 根据权利要求20-25任一项所述的设备，其特征在于，所述如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    如果接收到来自所述目标终端的所述第二信息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立。
  28. 根据权利要求27所述的设备，其特征在于，所述第二信息携带在来自所述目标终端的非接入层消息中。
  29. 根据权利要求20-25任一项所述的设备，其特征在于，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果接收到第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，包括：
    如果接收到来自所述接入网设备的业务请求消息，则向所述接入网设备发送第四信息、并与所述接入网设备建立针对目标MBMS的广播连接，所述业务请求消息包括所述第二信息，所述第四信息用于指示所述目标MBMS的会话建立。
  30. 根据权利要求29所述的设备，其特征在于，所述业务请求消息还包括对所述接入网设备的寻呼进行响应的目标终端的位置信息，所述处理器还执行以下操作：
    根据所述对所述接入网设备的寻呼进行响应的目标终端的位置信息，更新预先保存的所述对所述接入网设备的寻呼进行响应的目标终端所在的小区。
  31. 一种接入网设备，其特征在于，包括存储器、收发机和处理器：
    所述存储器，用于存储计算机程序；
    所述收发机，用于在所述处理器的控制下收发数据；
    所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
    响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  32. 根据权利要求31所述的设备，其特征在于，所述接收来自核心网设备的第一 信息，包括：
    接收来自所述核心网设备的业务调查请求消息，所述业务调查请求消息包括所述第一信息；
    所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回携带所述第二信息的业务调查响应消息。
  33. 根据权利要求31或32所述的设备，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则接收来自所述目标终端的所述第二信息，将来自所述目标终端的所述第二信息发送至所述核心网设备。
  34. 根据权利要求33所述的设备，其特征在于，所述第二信息携带在来自所述目标终端的非接入层消息中。
  35. 根据权利要求31所述的设备，其特征在于，所述第一信息用于指示所述目标MBMS的会话建立和触发所述接入网设备针对所述目标MBMS对处于非激活状态的所述目标终端进行寻呼，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备发送业务请求消息，所述业务请求消息包括所述第二信息。
  36. 根据权利要求35所述的设备，其特征在于，所述业务请求消息包括对所述接入网设备的寻呼进行响应的目标终端的位置信息。
  37. 根据权利要求31-36任一项所述的设备，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息之后，所述处理器还用于：
    接收来自所述核心网设备的第四信息、并与所述核心网设备建立针对所述目标MBMS的广播连接，所述第四信息用于指示所述目标MBMS的会话建立；
    响应于所述第四信息，针对所述目标MBMS，进行广播多播会话的无线资源配置和数据广播。
  38. 根据权利要求31-36任一项所述的设备，其特征在于，所述如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，包括：
    如果接收到来自所述目标终端的针对所述目标MBMS的连接消息，则向所述核心网设备返回所述第二信息。
  39. 一种多媒体广播多播业务的传输装置，其特征在于，该装置包括：
    确定单元，用于确定对目标多媒体广播多播业务MBMS感兴趣的目标终端，确定与所述目标终端相关的小区；
    通信单元，用于向所述小区所属的接入网设备发送第一信息，所述第一信息用于触发所述接入网设备确认是否需要接收所述目标MBMS；
    连接单元，用于如果接收到来自所述接入网设备或者所述目标终端的第二信息，则与所述接入网设备建立针对所述目标MBMS的广播连接，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  40. 一种多媒体广播多播业务的传输装置，其特征在于，该装置包括：
    通信单元，用于接收来自核心网设备的第一信息，所述第一信息用于触发与目标终端相关的小区所属的接入网设备确认是否需要接收目标MBMS，所述目标终端为对所述目标MBMS感兴趣的终端设备；
    寻呼单元，用于响应于所述第一信息，在所述接入网设备所管辖的小区内针对所述目标MBMS对处于空闲状态的所述目标终端和/或处于非激活状态的所述目标终端进行寻呼；
    所述通信单元，还用于如果根据所述目标终端对所述接入网设备寻呼的响应情况确定需要接收所述目标MBMS，则向所述核心网设备返回第二信息，所述第二信息用于指示所述接入网设备需要接收所述目标MBMS。
  41. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至11任一项所述的方法或者12至19任一项所述的方法。
PCT/CN2021/111349 2020-08-07 2021-08-06 多媒体广播多播业务的传输方法、装置、设备及存储介质 WO2022028612A1 (zh)

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