WO2021088564A1 - 一种广播业务的模式切换方法以及相关设备 - Google Patents

一种广播业务的模式切换方法以及相关设备 Download PDF

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Publication number
WO2021088564A1
WO2021088564A1 PCT/CN2020/118250 CN2020118250W WO2021088564A1 WO 2021088564 A1 WO2021088564 A1 WO 2021088564A1 CN 2020118250 W CN2020118250 W CN 2020118250W WO 2021088564 A1 WO2021088564 A1 WO 2021088564A1
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Prior art keywords
mode
terminal
trigger instruction
access network
switching
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PCT/CN2020/118250
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English (en)
French (fr)
Inventor
雷艺学
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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Priority to JP2022515498A priority Critical patent/JP7318117B2/ja
Priority to EP20885325.9A priority patent/EP4002918B1/en
Priority to KR1020227009875A priority patent/KR102820270B1/ko
Publication of WO2021088564A1 publication Critical patent/WO2021088564A1/zh
Priority to US17/453,106 priority patent/US12160875B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • 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
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0007—Control or signalling for completing the hand-off for multicast or broadcast services, e.g. MBMS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services

Definitions

  • This application relates to the field of computer technology, in particular to the mode switching technology of broadcasting services.
  • 5G broadcasting is a technical feature introduced by 5G.
  • the purpose is to support broadcasting services by enhancing the new air interface based on NR (New Radio) and 5GC; the future application prospects of 5G broadcasting technology are broad, including the broadcasting of large-scale live broadcasts, and vehicles. Sending of common business data, software update push, TV programs, etc. on the Internet.
  • the embodiments of the present application provide a broadcasting service switching method and related equipment, which can improve the performance of the broadcasting service and increase the flexibility of the broadcasting service.
  • the first aspect of the present application provides a mode switching method for broadcasting services, which can be applied to a 5G network architecture system or a 5G broadcasting application process, which specifically includes:
  • the terminal establishes trigger coordination with the application server to determine a trigger instruction, where the trigger instruction is used to instruct the terminal to switch the broadcast mode;
  • the terminal sends the trigger instruction to the access network device, so that the access network device sends a handover request to a functional network element, where the handover request is used to instruct the functional network element to configure corresponding mode parameters, and
  • the mode parameter is used to instruct the access network device to update the execution parameter to obtain the configuration parameter and send the configuration parameter to the terminal;
  • the terminal switches to the corresponding broadcast mode according to the configuration parameters to establish a wireless connection with the access network device.
  • the establishment of trigger coordination between the terminal and the application server to determine the trigger instruction includes:
  • the terminal monitors application layer information in real time to obtain handover information, the handover information being determined based on changes in geographic location or business strategy;
  • the terminal determines a trigger instruction according to the switching information.
  • the establishment of trigger coordination between the terminal and the application server to determine the trigger instruction includes:
  • the terminal determines the trigger instruction according to the switching information.
  • the establishment of trigger coordination between the terminal and the application server to determine the trigger instruction includes:
  • the terminal Acquiring, by the terminal, a measurement report of a neighboring cell, where the measurement report includes the broadcast mode support status of the neighboring cell;
  • the terminal determines the corresponding broadcast mode according to the measurement report to determine the trigger instruction.
  • the sending of the trigger instruction by the terminal to the access network device so that the access network device sends a handover request to the functional network element includes:
  • the terminal determines the corresponding parameter change value according to the switching of the broadcast mode to generate resource control information
  • the terminal sends the trigger instruction to the access network device, where the trigger instruction includes the resource control information, so that the access network device can access multiple neighboring access network devices according to the resource control information.
  • the trigger instruction includes the resource control information
  • the access network device can access multiple neighboring access network devices according to the resource control information.
  • the second aspect of the present application provides a method for mode switching of a broadcast service, including:
  • the application server obtains the switching information of the broadcast mode to determine the trigger instruction
  • the application server sends the trigger instruction to the functional network element, where the trigger instruction is used to instruct the functional network element to configure corresponding mode parameters, and the mode parameter is used to instruct the access network device to update execution parameters To obtain the configuration parameters and send the configuration parameters to the terminal.
  • the application server obtains the switching information of the broadcast mode to determine the trigger instruction, including:
  • the application server receives handover information sent by the terminal, where the handover information is determined based on changes in geographic location or service strategy;
  • the application server determines the trigger instruction according to the switching information.
  • the third aspect of the present application provides a method for mode switching of a broadcast service, including:
  • the functional network element obtains a trigger instruction, the trigger instruction is derived from an access network device, or is sent from an application server, or is determined by the functional network element based on a preset rule, and the preset rule is based on network resource utilization Or the device on the downlink transmission path determines the configuration of the broadcast mode;
  • the functional network element determines the corresponding broadcast mode according to the trigger instruction
  • the functional network element updates the execution parameters according to the broadcast mode to obtain configuration parameters
  • the functional network element sends the configuration parameter to the access network device to instruct the access network device to establish a connection with the terminal based on the configuration parameter.
  • a fourth aspect of the present application provides a mode switching device for a broadcast service, including:
  • a trigger unit configured to establish trigger coordination with the application server to determine a trigger instruction, where the trigger instruction is used to instruct the switching of the broadcast mode of the terminal;
  • the sending unit is configured to send the trigger instruction to the access network device so that the access network device sends a handover request to a functional network element, where the handover request is used to instruct the functional network element to configure corresponding mode parameters,
  • the mode parameter is used to instruct the access network device to update the execution parameter to obtain the configuration parameter and send the configuration parameter to the terminal;
  • the switching unit is configured to switch to the corresponding broadcast mode according to the configuration parameter to establish a wireless connection with the access network device.
  • the trigger unit is specifically used for:
  • Real-time monitoring of application layer information to obtain handover information which is determined based on changes in geographic location or business strategy
  • the trigger unit is specifically configured to determine a trigger instruction according to the switching information.
  • the trigger unit is specifically used for:
  • the trigger unit is specifically configured to determine the trigger instruction according to the switching information.
  • the trigger unit is specifically used for:
  • the trigger unit is specifically configured to determine the corresponding broadcast mode according to the measurement report to determine the trigger instruction.
  • the sending unit is specifically configured to:
  • the sending unit is specifically used for:
  • the fifth aspect of the present application provides an application server, including:
  • the acquiring unit is used to acquire the switching information of the broadcast mode to determine the trigger instruction
  • the sending unit is configured to send the trigger instruction to a functional network element, where the trigger instruction is used to instruct the functional network element to configure corresponding mode parameters, and the mode parameters are used to instruct the access network device to perform parameters Update to obtain the configuration parameters and send the configuration parameters to the terminal.
  • the acquiring unit is specifically configured to: receive handover information sent by the terminal, where the handover information is determined based on changes in geographic location or service policies;
  • the acquiring unit is specifically configured to determine the trigger instruction according to the switching information.
  • the sixth aspect of the present application provides a functional network element, including:
  • the acquiring unit is configured to acquire a trigger instruction, the trigger instruction originating from an access network device, or from an application server, or determined by the functional network element based on preset rules, and the preset rules are based on network resource utilization
  • the degree or downlink transmission path equipment determines the configuration of the broadcast mode
  • the determining unit is configured to determine the corresponding broadcast mode according to the trigger instruction
  • the update unit is configured to update the execution parameters according to the broadcast mode to obtain configuration parameters
  • the sending unit is configured to send the configuration parameter to the access network device to instruct the access network device to establish a connection with the terminal based on the configuration parameter.
  • a seventh aspect of the present application provides a computer device, including: a memory, a processor, and a bus system; the memory is used to store program code; the processor is used to execute the first aspect or the first aspect according to the instructions in the program code.
  • the mode switching method according to any one of the aspects; the processor is further configured to execute the mode switching method according to the second aspect or any one of the second aspects according to instructions in the program code;
  • the processor is further configured to execute the mode switching method according to the third aspect or any one of the third aspects according to the instructions in the program code.
  • the eighth aspect of the present application provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the first aspect or any one of the first aspects described above
  • the ninth aspect of the present application provides a computer program product, including instructions, which when run on a computer, cause the computer to execute the broadcast service mode switching method as described in any one of the first aspect above, or any one of the second aspect
  • the broadcasting service mode switching method described in item 1, or the broadcasting service mode switching method described in any one of the third aspect is a computer program product, including instructions, which when run on a computer, cause the computer to execute the broadcast service mode switching method as described in any one of the first aspect above, or any one of the second aspect
  • the broadcasting service mode switching method described in item 1, or the broadcasting service mode switching method described in any one of the third aspect are examples of the broadcasting service mode switching method described in any one of the third aspect.
  • the terminal establishes trigger coordination with the application server to determine the trigger instruction for instructing the switching of the broadcast mode of the terminal; then according to the trigger instruction, the access network device sends a switching request to the functional network element, and the functional network element Configure the corresponding mode parameters according to the switched mode, and update the execution parameters to obtain the configuration parameters and send them to the terminal; then the terminal switches to the corresponding broadcast mode according to the configuration parameters to establish a connection with the access network device Wireless connection between.
  • the communication system realizes the switching of broadcast and multicast modes, realizes support for business flexibility, and improves the fluency of the communication process.
  • FIG. 1 is a network architecture diagram of a 5G core network provided by an embodiment of the application
  • Figure 2 is a flowchart of a method for mode switching of a broadcast service provided by an embodiment of the application
  • Fig. 3 is a flowchart of another method for mode switching of a broadcast service provided by an embodiment of the application
  • FIG. 4 is a schematic structural diagram of a mode switching device provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of an application server provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a functional network element provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of another mode switching apparatus provided by an embodiment of the application.
  • the embodiment of the present application provides a method and related device for mode switching of a broadcast service, which can be applied to a system or program application.
  • a terminal establishes a trigger coordination with an application server to determine a method for instructing the terminal A trigger instruction for switching the broadcast mode; then according to the trigger instruction, the access network device sends a switching request to the functional network element, and the functional network element configures the corresponding mode parameters according to the switched mode, and updates the execution parameters to obtain the configuration parameters And send it to the terminal; next, the terminal switches to the corresponding broadcast mode according to the configuration parameters to establish a wireless connection with the access network device.
  • the communication system realizes the switching of broadcast and multicast modes, realizes support for business flexibility, and improves the fluency of the communication process.
  • the mode switching method of the broadcast service provided by this application can be applied to the 5G network architecture.
  • FIG. 1 it is the network architecture diagram of the 5G core network provided by the embodiments of this application, including: network exposure function (network exposure) function, NEF) entity, network repository function (NRF) entity, policy control function (PCF) entity, unified data management (UDM) network element, application function (application function, AF) entity, authentication server function (AUSF) network element, access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (user plane function, UPF) entity, and the number of each network element, entity or device can be one or more.
  • network exposure function network exposure
  • NEF network exposure function
  • NEF network repository function
  • PCF policy control function
  • UDM unified data management
  • application function application function, AF
  • AUSF authentication server function
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • the NEF entity is used to connect other network elements inside the core network with the external application server of the core network, and provide services such as authentication and data forwarding when the external application server initiates a service request to the core network, so as to provide network capability information to the external application server, or Provide the information of the external application server to the core network element.
  • the NEF entity may forward the data when the AF entity and the core network element or the access network device perform data transmission, such as the PCF entity, the NEF entity may forward the data.
  • the NRF entity supports the service discovery function, that is, receives the NF-Discovery-Request sent by the network element, and then provides the discovered network element information to the requester; maintains the characteristics of the available network element instances and the service capabilities it supports.
  • the PCF entity mainly supports the provision of a unified policy framework to control network behavior, provides policy rules to the control layer network functions, and is responsible for obtaining user subscription information related to policy decisions.
  • the main functions are: 1) generate 3GPP authentication certificate/authentication parameters; 2) store and manage the permanent user identity of the 5G system; 3) subscription information management; 4) MT-SMS delivery; 5) SMS management 6)
  • the user's service network element (such as the AMF entity or SMF entity that currently provides services for the terminal) registration management.
  • the AF entity which is specifically an application server corresponding to an application, has an application service function, and interacts with core network elements to provide services for terminal devices. For example, interacting with the PCF entity for service policy control, or interacting with the NEF entity to obtain network capability information or providing application information to the network, or interacting with the PCF entity to provide data network access point information to the PCF entity for The PCF entity generates routing information for the corresponding data service.
  • the AUSF network element supports the authentication of 3GPP access and the authentication of untrusted non-3GPP access.
  • the AMF entity is mainly responsible for functions such as terminal device authentication, terminal device mobility management, network slice selection, and session management function entity selection.
  • the SMF entity is mainly responsible for the control plane functions of UE session management, including UPF selection, IP address allocation, session QoS management, and acquisition of policy control and charging (PCC) policies (from the PCF entity).
  • PCF policy control and charging
  • the UPF entity is mainly responsible for data packet routing and forwarding, and quality of service (QoS) flow mapping.
  • QoS quality of service
  • the functional network element in this application may be a combination of one or more functions of the above functional entities, and the specific functional entities involved depend on actual applications.
  • 5G broadcast services are used for illustration.
  • the RAN can be a network composed of multiple RAN devices, which implements radio physical layer functions, resource scheduling and radio resource management, radio access control, and mobility management functions.
  • the RAN device is connected to the UPF entity through the user plane interface N3, and is used to transmit data of the terminal device.
  • the RAN device establishes a control plane signaling connection with the AMF entity through the control plane interface N2, which is used to implement functions such as radio access bearer control.
  • the wireless access network device shown in FIG. 1 of the present application that is, the RAN device, can also be replaced with a wired access network device.
  • UE User equipment
  • voice/data connectivity for example, a handheld device or a vehicle-mounted device with a wireless connection function. It may also include smart mobile phones, mobile stations (mobile stations, MS), mobile terminals (mobile terminals, MT), etc., which may also be referred to as terminals below.
  • the deployment of the 5G network requires upgrading or redeployment of the wireless access network, so it is difficult to achieve full coverage.
  • the terminals supporting broadcasting in 5G networks will not be limited to TVs, but also include user smart terminals and mobile terminals in vehicles. If mode switching is not supported, the connection will be interrupted and service performance will be affected, even if mobility requirements are not considered. When the terminal is not moving, the most suitable wireless transmission mode will still change as the number of available wireless resources changes and the user's service requirements change, that is, whether it is unicast or broadcast.
  • the 5G network needs to solve the problem of mode switching and connection management.
  • the mode switching can be performed flexibly.
  • this application proposes a mode switching method for broadcasting services, combined with the above 5G network architecture, the following will introduce the mode switching method for broadcasting services in this application.
  • Figure 2 is an implementation of this application.
  • the example provides a flowchart of a method for mode switching of a broadcast service.
  • the embodiment of the present application includes at least the following steps:
  • the process of triggering coordination is established between the terminal and the application server, that is, determining the occurrence of mode switching in 5G broadcasting, and generating a triggering instruction corresponding to the mode switching.
  • the mode switching can be led by the terminal.
  • the application layer terminal can monitor the application layer information in real time to obtain the switching information; where the switching information is based on the change of geographic location or business strategy Determined, for example: when the switching information is determined based on the change of the geographic location, the terminal monitors its own position change in real time, and when the position change exceeds the distance threshold, it generates a trigger instruction for instructing the broadcast mode switch.
  • the switching information is determined based on the change of the service strategy
  • the terminal obtains its own service execution status, and when the execution node for switching the broadcasting service is monitored, it can generate a trigger instruction for instructing the broadcasting mode switching.
  • the terminal in the scenario where the terminal dominates the mode switching, it can also be the provisions of the terminal-side communication protocol. Specifically, the terminal obtains the measurement report of the surrounding cell, and the measurement report includes the broadcast mode support status of the surrounding cell. The corresponding broadcast mode is determined according to the measurement report to determine the trigger instruction. For example, triggering on the AS layer is based on measurement reports and cell discovery. For example, the serving cell supports broadcasting, but the neighboring cells do not. Therefore, when the terminal moves and causes the mode switch, this penalty is implemented through RRC signaling;
  • the NAS layer triggers, the application layer of the terminal or based on other methods, makes the terminal decide to initiate a mode change. At the NAS layer, it can be achieved by modifying the NAS service request message or defining a new NAS message. The above method can be achieved by modifying the terminal communication process Implementation of the standard protocol.
  • the mode switching may be led by the application server.
  • the terminal receives the switching information sent by the application server, and the terminal determines the trigger instruction according to the switching information; that is, the switching information is Generated on the application server side, the specific generation process may be based on the program strategy corresponding to the application server, or the background application update performed by related personnel, etc.
  • the specific form depends on the actual scenario.
  • the terminal sends a trigger instruction to the access network device.
  • the trigger command may include a specific mode selection or parameter configuration corresponding to the mode, or may only include the identification of the mode, to be analyzed by the access network side; specifically, the trigger command may be an RRC message or enhanced measurement Report or newly defined RRC message, the specific form depends on the actual scenario.
  • the access network equipment may be a combination of multiple NR-RAN and gNB.
  • the coordination between access network devices mainly depends on whether multiple adjacent cells can be configured as a broadcast cell group, because there can be one or more cells in a broadcast cell group, and whether The cell group configured as broadcast depends on whether the capabilities and resource conditions of the base station are allowed, and then the available access network equipment is determined according to the negotiated situation. It is understandable that coordination between access network devices needs to be implemented in the form of messages between base stations, such as enhancing existing Xn interface messages.
  • the access network device sends a handover request to the functional network element.
  • functional network elements are functional entities in one or more core networks used to perform 5G broadcast functions, and the specific number depends on actual scenarios.
  • the functional network element determines configuration parameters corresponding to the switching mode.
  • the configuration parameter is the parameter setting corresponding to the switched mode, and the corresponding parameter when the functional network element executes the previous mode is the execution parameter.
  • the execution parameter can be deleted and then the configuration parameter is input. , It can also be adjusted on the basis of the execution parameters, and the specific form depends on the actual scene.
  • the functional network element sends configuration parameters to the access network device.
  • the functional network element of the broadcast service in the core network sends a handover response message to the NG-RAN, which contains configuration parameters corresponding to the mode to be switched to.
  • the core network needs to update the device association in the upstream direction, and perform the reconfiguration of the wireless side protocol stack SDAP, PDCP, RLC, and MAC.
  • Layer configuration can be implemented in delta mode or full reconfiguration mode.
  • the access network device updates configuration parameters.
  • the access network device NR-RAN gNB performs configuration parameter changes.
  • the access network device sends configuration parameters to the terminal.
  • the access network device NR-RAN gNB after the access network device NR-RAN gNB performs the configuration parameter change, it sends an RRC message to the terminal to perform handover.
  • the terminal and the access network device re-apply the new configuration parameters to establish a wireless connection.
  • the access network device that re-establishes the connection can be the access network device corresponding to the previous mode, or the access network device corresponding to the switching mode, and the two can be the same access network device or Is different.
  • the terminal establishes trigger coordination with the application server to determine the trigger instruction for instructing the switching of the terminal's broadcast mode; then according to the trigger instruction, the access network device sends the function network element In the handover request, the functional network element configures the corresponding mode parameters according to the switched mode and updates the execution parameters to obtain the configuration parameters and send them to the terminal; then the terminal switches to the corresponding broadcast mode according to the configuration parameters to establish and The wireless connection between the access network devices.
  • the communication system realizes the switching of broadcast and multicast modes, realizes support for business flexibility, and improves the fluency of the communication process.
  • FIG. 3 is a flowchart of another method for mode switching of a broadcast service provided by an embodiment of this application.
  • the embodiment of this application includes at least the following steps:
  • the application server and the terminal establish trigger coordination to determine the trigger instruction.
  • the process of establishing trigger coordination between the application server and the terminal is to determine the occurrence of mode switching in 5G broadcasting, and to generate a trigger instruction corresponding to the mode switching.
  • the mode switching may be led by the application server.
  • the application server obtains the switching information of the broadcast mode to determine the trigger instruction; where the switching information may be the application server according to the policy provisions of the relevant application. Generated may also be generated during the response process of the active mode switch of the relevant personnel.
  • the mode switching may be led by the terminal, that is, the application server receives the switching information sent by the terminal, and then determines the trigger instruction; specifically, the switching information may be the change of the terminal according to the geographic location or business strategy. If it is confirmed, the relevant description can refer to the relevant description of the terminal determining the handover information in step 201 in FIG. 2, which will not be repeated here.
  • the application server sends a trigger instruction to the functional network element.
  • the application server may send a message to the functional network element in the core network (or through NEF) to trigger the handover.
  • the core network element can also perform mode switching operations based on the information it detects. For example, when resource optimization is performed, a broadcast group consisting of 3 cells in a certain geographic area supports service broadcasting, but due to the number of users Because the resource utilization rate of broadcasting is not high, it can be switched to provide service transmission through unicast, and vice versa.
  • route reconfiguration that is, from the terminal to the access network device to the server or the opposite direction, the route through which the service is transmitted can be changed. After the change, it may appear that the original support for broadcasting, but the changed There are functional network elements on the path that do not support broadcasting. In this case, you also need to switch to unicast.
  • the functional network element determines configuration parameters corresponding to the switching mode.
  • the functional network element sends configuration parameters to the access network device.
  • the access network device updates configuration parameters.
  • the access network device sends configuration parameters to the terminal.
  • steps 303 to 307 are similar to steps 205 to 209 in FIG. 2, and reference may be made to specific descriptions, which will not be repeated here.
  • FIG. 4 is a schematic structural diagram of a mode switching device provided by an embodiment of the application.
  • the mode switching device 400 includes:
  • the trigger unit 401 is configured to establish trigger coordination with the application server to determine a trigger instruction, where the trigger instruction is used to instruct the switching of the broadcast mode of the terminal;
  • the sending unit 402 is configured to send the trigger instruction to an access network device, so that the access network device sends a handover request to a functional network element, where the handover request is used to instruct the functional network element to configure corresponding mode parameters ,
  • the mode parameter is used to instruct the access network device to update the execution parameter to obtain the configuration parameter and send the configuration parameter to the terminal;
  • the switching unit 403 is configured to switch to a corresponding broadcast mode according to the configuration parameters to establish a wireless connection with the access network device.
  • the trigger unit 401 is specifically configured to monitor application layer information in real time to obtain handover information, and the handover information is determined based on changes in geographic location or business strategy;
  • the trigger unit 401 is specifically configured to:
  • the trigger instruction is determined according to the switching information.
  • the trigger unit 401 is specifically configured to receive the switching information sent by the application server;
  • the trigger unit 401 is specifically configured to determine a trigger instruction according to the switching information.
  • the trigger unit 401 is specifically configured to obtain measurement reports of surrounding cells, where the measurement report includes the broadcast mode support status of the surrounding cells;
  • the trigger unit 401 is specifically configured to determine the corresponding broadcast mode according to the measurement report to determine the trigger instruction.
  • the sending unit 402 is specifically configured to determine corresponding parameter change values according to the switching of the broadcast mode, so as to generate resource control information;
  • the sending unit 402 is specifically configured to send the triggering instruction to an access network device, where the triggering instruction includes the resource control information, so that the access network device can access multiple neighboring devices according to the resource control information.
  • the triggering instruction includes the resource control information, so that the access network device can access multiple neighboring devices according to the resource control information.
  • the terminal establishes trigger coordination with the application server to determine the trigger instruction for instructing the switching of the broadcast mode of the terminal; then according to the trigger instruction, the access network device sends a switching request to the functional network element, and the functional network element Configure the corresponding mode parameters according to the switched mode, and update the execution parameters to obtain the configuration parameters and send them to the terminal; then the terminal switches to the corresponding broadcast mode according to the configuration parameters to establish a connection with the access network device Wireless connection between.
  • the communication system realizes the switching of broadcast and multicast modes, realizes support for business flexibility, and improves the fluency of the communication process.
  • FIG. 5 is a schematic structural diagram of a server provided in an embodiment of the present application, including:
  • the acquiring unit 501 is configured to acquire the switching information of the broadcast mode to determine the trigger instruction
  • the sending unit 502 is configured to send the trigger instruction to a functional network element, where the trigger instruction is used to instruct the functional network element to configure corresponding mode parameters, and the mode parameters are used to instruct the access network device to perform parameters Update to obtain the configuration parameters and send the configuration parameters to the terminal.
  • the acquiring unit 501 is specifically configured to receive handover information sent by the terminal, and the handover information is determined based on changes in geographic location or service policies;
  • the acquiring unit 501 is specifically configured to determine a trigger instruction according to the switching information.
  • FIG. 6 is a schematic structural diagram of a functional network element provided by an embodiment of the present application, including:
  • the acquiring unit 601 is configured to acquire a trigger instruction, the trigger instruction originating from an access network device, or from an application server, or determined by the functional network element based on a preset rule, and the preset rule is based on network resources Utilization or downlink transmission path equipment to determine the configuration of the broadcast mode;
  • the determining unit 602 is configured to determine the corresponding broadcast mode according to the trigger instruction
  • the update unit 603 is configured to update the execution parameters according to the broadcast mode to obtain configuration parameters
  • the sending unit 604 is configured to send the configuration parameter to the access network device to instruct the access network device to establish a connection with the terminal based on the configuration parameter.
  • FIG. 7 is a schematic structural diagram of another mode switching device provided by an embodiment of the present application.
  • the mode switching device 700 may vary depending on configuration or performance. There are big differences due to different, which may include one or more central processing units (CPU) 722 (for example, one or more processors) and memory 732, and one or more storage application programs 742 or data 744.
  • the storage medium 730 (for example, one or a storage device with a large amount of storage). Among them, the memory 732 and the storage medium 730 may be short-term storage or persistent storage.
  • the program stored in the storage medium 730 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the mode switching device. Furthermore, the central processing unit 722 may be configured to communicate with the storage medium 730, and execute a series of instruction operations in the storage medium 730 on the mode switching device 700.
  • the mode switching device 700 may also include one or more power supplies 726, one or more wired or wireless network interfaces 750, one or more input and output interfaces 757, and/or one or more operating systems 741, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • operating systems 741 such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • the steps performed by the mode switching device in the foregoing embodiment may be based on the structure of the mode switching device shown in FIG. 7.
  • application server in FIG. 5 and the functional network element in FIG. 6 can also be divided according to the division method shown in FIG.
  • An embodiment of the present application also provides a computer-readable storage medium, which stores a mode switching instruction, which when running on a computer, causes the computer to execute the embodiments shown in FIGS. 2 to 3 above. The steps performed by the mode switching device, application server or functional network element in the described method.
  • the embodiment of the present application also provides a computer program product including a mode switching instruction, which when running on a computer, causes the computer to execute the mode switching device and the application server in the method described in the embodiments shown in FIGS. 2 to 3 above. Or the steps performed by the functional network element.
  • a mode switching instruction which when running on a computer, causes the computer to execute the mode switching device and the application server in the method described in the embodiments shown in FIGS. 2 to 3 above. Or the steps performed by the functional network element.
  • the embodiment of the present application also provides a mode switching system.
  • the mode switching system may include the mode switching apparatus in the embodiment described in FIG. 4 or FIG. 7, or the application server described in FIG. 5, or the mode switching system described in FIG. Functional network element.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which can be a personal computer, a mode switching device, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

一种广播业务的模式切换方法以及相关装置，通过终端建立与应用服务器之间的触发协调，以确定用于指示终端的广播模式的切换的触发指令；然后根据该触发指令使得接入网设备向功能网元发送切换请求，功能网元根据切换的模式配置相应的模式参数；模式参数用于指示接入网设备对执行参数进行更新，以得到配置参数并向终端发送；接下来终端根据配置参数切换至对应的广播模式，以建立与接入网设备之间的无线连接；从而使得通信系统实现了广播和多播模式的切换，实现对业务灵活性的支持，提高通信过程的流畅度。

Description

一种广播业务的模式切换方法以及相关设备
本申请要求于2019年11月07日提交中国专利局、申请号为201911083105.7、申请名称为“一种广播业务的模式切换方法以及相关设备”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
本申请涉及计算机技术领域，尤其涉及广播业务的模式切换技术。
背景技术
5G广播是5G引入的一种技术特性，目的是希望通过增强基于NR(New Radio)新空口和5GC来实现对广播业务的支持；5G广播技术未来应用前景广阔，包括大型直播节目的播发、车联网中共性业务数据的发送、软件更新推送、电视节目等等。
然而，5G系统中为了灵活高效地使用无线资源，以及满足移动性管理的需求，需要支持广播模式和单播模式的切换。对于广播业务中广播模式和单播模式的切换，一般需要先断开终端与网络侧的连接，然后重新配置参数，继而重新建立会话。
但是，上述重新连接的过程会造成广播业务的中断，影响广播业务的性能，降低广播业务的灵活度。
发明内容
本申请实施例提供了一种广播业务的切换方法及相关设备，能够提高广播业务的性能，并且提高广播业务的灵活度。
有鉴于此，本申请第一方面提供一种广播业务的模式切换方法，可应用于5G网络架构系统或5G广播应用程序过程中，具体包括：
终端建立与应用服务器之间的触发协调，以确定触发指令，所述触发指令用于指示所述终端的广播模式的切换；
所述终端向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，所述切换请求用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数；
所述终端根据所述配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。
在本申请一些可能的实现方式中，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
所述终端实时监测应用层信息，以得到切换信息，所述切换信息是基于地理位置或业务策略的变化情况确定的；
所述终端根据所述切换信息确定触发指令。
在本申请一些可能的实现方式中，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
所述终端接收所述应用服务器发送的切换信息；
所述终端根据所述切换信息确定所述触发指令。
在本申请一些可能的实现方式中，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
所述终端获取周边小区的测量报告，所述测量报告包括所述周边小区的广播模式支持情况；
所述终端根据所述测量报告确定对应的广播模式，以确定所述触发指令。
在本申请一些可能的实现方式中，所述终端向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，包括：
所述终端根据所述广播模式的切换确定对应的参数变化值，以生成资源控制信息；
所述终端向所述接入网设备发送所述触发指令，所述触发指令包括所述资源控制信息，以使所述接入网设备根据所述资源控制信息在多个相邻接入网设备之间进行协商，以匹配切换后的广播模式并向所述功能网元发送所述切换请求。
本申请第二方面提供一种广播业务的模式切换方法，包括：
应用服务器获取广播模式的切换信息，以确定触发指令；
所述应用服务器向功能网元发送所述触发指令，所述触发指令用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数。
在本申请一些可能的实现方式中，所述应用服务器获取广播模式的切换信息，以确定触发指令，包括：
所述应用服务器接收所述终端发送的切换信息，所述切换信息基于地理位置或业务策略的变化情况确定；
所述应用服务器根据所述切换信息确定所述触发指令。
本申请第三方面提供一种广播业务的模式切换方法，包括：
功能网元获取触发指令，所述触发指令来源于接入网设备、或者来源于应用服务器发送、或者是所述功能网元基于预设规则确定的，所述预设规则是基于网络资源利用度或下行传输路径的设备对于广播模式的配置情况确定的；
所述功能网元根据所述触发指令确定对应的广播模式；
所述功能网元根据所述广播模式对执行参数进行更新，得到配置参数；
所述功能网元向所述接入网设备发送所述配置参数，以指示所述接入网设备基于所述配置参数与终端建立连接。
本申请第四方面提供一种广播业务的模式切换装置，包括：
触发单元，用于建立与应用服务器之间的触发协调，以确定触发指令，所述触发指令用于指示所述终端的广播模式的切换；
发送单元，用于向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，所述切换请求用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数；
切换单元，用于根据所述配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。
在本申请一些可能的实现方式中，所述触发单元，具体用于：
实时监测应用层信息，以得到切换信息，所述切换信息是基于地理位置或业务策略的变化情况确定的；
所述触发单元，具体用于根据所述切换信息确定触发指令。
在本申请一些可能的实现方式中，所述触发单元具体用于：
接收所述应用服务器发送的切换信息；
所述触发单元，具体用于根据所述切换信息确定所述触发指令。
在本申请一些可能的实现方式中，所述触发单元具体用于：
获取周边小区的测量报告，所述测量报告包括所述周边小区的广播模式支持情况；
所述触发单元，具体用于根据所述测量报告确定对应的广播模式，以确定所述触发指令。
在本申请一些可能的实现方式中，所述发送单元具体用于：
根据所述广播模式的切换确定对应的参数变化值，以生成资源控制信息；
所述发送单元具体用于：
向接入网设备发送所述触发指令，所述触发指令包括所述资源控制信息，以使所述接入网设备根据所述资源控制信息在多个相邻接入网设备之间进行协商，以匹配切换后的广播模式并向所述功能网元发送苏搜切换请求。
本申请第五方面提供一种应用服务器，包括：
获取单元，用于获取广播模式的切换信息，以确定触发指令；
发送单元，用于向功能网元发送所述触发指令，所述触发指令用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数。
在本申请一些可能的实现方式中，所述获取单元具体用于：接收所述终端发送的切换信息，所述切换信息基于地理位置或业务策略的变化情况确定；
所述获取单元，具体用于根据所述切换信息确定所述触发指令。
本申请第六方面提供一种功能网元，包括：
获取单元，用于获取触发指令，所述触发指令来源于接入网设备、或者来源于应用服务器、或者是所述功能网元基于预设规则确定的，所述预设规则是基于网络资源利用度或下行传输路径的设备对于广播模式的配置情况确定的；
确定单元，用于根据所述触发指令确定对应的广播模式；
更新单元，用于根据所述广播模式对执行参数进行更新，得到配置参数；
发送单元，用于向所述接入网设备发送所述配置参数，以指示所述接入网设备基于所述配置参数与终端建立连接。
本申请第七方面提供一种计算机设备，包括：存储器、处理器以及总线系统；所述存储器用于存储程序代码；所述处理器用于根据所述程序代码中的指令执行上述第一方面或第一方面任一项所述的模式切换的的方法；所述处理器还用于根据所述程序代码中的指令执行上述第二方面或第二方面任一项所述的模式切换的的方法；所述处理器还用于根据所述程序代码中的指令执行上述第三方面或第三方面任一项所述的模式切换的的方法。
本申请第八方面提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面任一项所述的模式切换的的方法，或上述第二方面或第二方面任一项所述的模式切换的的方法，或上述第三方面或第三方面任一项所述的模式切换的的方法。
本申请第九方面提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行如上述第一方面任一项所述的广播业务的模式切换方法，或者第二方面任一项所述的广播业务的模式切换方法，或者第三方面任一项所述的广播业务的模式切换方法。
从以上技术方案可以看出，本申请实施例具有以下优点：
通过终端建立与应用服务器之间的触发协调，以确定用于指示所述终端的广播模式的切换的触发指令；然后根据该触发指令使得接入网设备向功能网元发送切换请求，功能网元根据切换的模式配置相应的模式参数，并对执行参数进行更新，以得到配置参数并向所述终端发送；接下来终端根据配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。从而使得通信系统实现了广播和多播模式的切换，实现对业务灵活性的支持，提高通信过程的流畅度。
附图说明
为了更清楚地说明本申请实施例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简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请实施例提供的5G核心网的网络架构图；
图2为本申请实施例提供的一种广播业务的模式切换方法的流程图；
图3为本申请实施例提供的另一种广播业务的模式切换方法的流程图；
图4为本申请实施例提供的模式切换装置的结构示意图；
图5为本申请实施例提供的一种应用服务器的结构示意图；
图6为本申请实施例提供的一种功能网元的结构示意图；
图7为本申请实施例提供的另一种模式切换装置的结构示意图。
具体实施方式
本申请实施例提供了一种广播业务的模式切换的方法以及相关装置，可以应用于系统或程序应用中，具体通过终端建立与应用服务器之间的触发协调，以确定用于指示所述终端的广播模式的切换的触发指令；然后根据该触发指令使得接入网设备向功能网元发送切换请求，功能网元根据切换的模式配置相应的模式参数，并对执行参数进行更新，以得到配置参数并向所述终端发送；接下来终端根据配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。从而使得通信系统实现了广播和多播模式的切换，实现对业务灵活性的支持，提高通信过程的流畅度。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“对应于”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应理解，本申请提供的广播业务的模式切换方法可以应用于5G网络架构中，如图1所示，是本申请实施例提供的5G核心网的网络架构图，包括：网络暴露功能(network exposure function，NEF)实体、网络贮存功能(network repository function，NRF)实体、策略与控制功能(policy control function，PCF)实体、统一数据管理(unified data management，UDM)网元、应用功能(application function，AF)实体、鉴权服务器(authentication server function，AUSF)网元、接入和移动性管理功能(access and mobility management function，AMF)实体、会话管理功能(session management function，SMF)实体、用户面功能(user plane function，UPF)实体，且各个网元、实体或设备的数量可以是一个或多个。
NEF实体，用于连接核心网内部其它网元与核心网外部应用服务器，在外部应用服务器向核心网发起业务请求时提供认证与数据转发等服务，以 将网络能力信息提供给外部应用服务器，或者将外部应用服务器的信息提供给核心网网元。在本申请实施方式中，在AF实体与核心网网元或者接入网设备等进行数据传输时，例如PCF实体，NEF实体可以对该数据进行转发。
NRF实体，支持业务发现功能，也就是接收网元发过来的NF-Discovery-Request，然后提供其发现的网元信息给请求方；维护可用网元实例的特征和其支持的业务能力。
PCF实体，主要支持提供统一的策略框架来控制网络行为，提供策略规则给控制层网络功能，同时负责获取与策略决策相关的用户签约信息。
UDM网元，主要功能有：1)产生3GPP鉴权证书/鉴权参数；2)存储和管理5G系统的永久性用户标识；3)订阅信息管理；4)MT-SMS递交；5)SMS管理；6)用户的服务网元(比如当前为终端提供业务的AMF实体或SMF实体等)注册管理。
AF实体，AF实体具体为应用所对应的应用服务器，具备应用服务功能，与核心网网元交互以为终端设备提供服务。例如，与PCF实体交互以进行业务策略控制，或者，与NEF实体交互以获取网络能力信息或提供应用信息给网络，或者，与PCF实体交互以提供数据网络接入点信息给PCF实体，用以PCF实体生成相应的数据业务的路由信息。
AUSF网元，支持3GPP接入的鉴权和不可信非(untrusted non)3GPP接入的鉴权。
AMF实体，主要负责终端设备的认证、终端设备的移动性管理、网络切片选择、会话管理功能实体的选择等功能。
SMF实体，主要负责UE会话管理的控制面功能，包括UPF选择，IP地址分配，会话的QoS管理，(从PCF实体)获取策略控制和计费(policy control and charging，PCC)策略等。
UPF实体，主要负责数据包的路由转发、服务质量(quality of service，QoS)流映射。
可以理解的是，本申请中功能网元可以是上述功能实体的一个或多个功能的结合，具体涉及的功能实体因实际应用而定，本实施例中以5G广播业务进行说明。
RAN可以是由多个RAN设备组成的网络，实现无线物理层功能、资源调度和无线资源管理、无线接入控制以及移动性管理功能等。RAN设备通过用户面接口N3与UPF实体相连，用于传输终端设备的数据。RAN设备通过控制面接口N2和AMF实体建立控制面信令连接，用于实现无线接入承载控制等功能。其中，本申请图1中示出了无线接入网设备，即RAN设备，也可以替换为有线的接入网设备。
用户设备(user equipment，UE)，用于向用户提供语音/数据连通性，例如，具有无线连接功能的手持式设备或车载设备等。也可以包括智能移动 电话、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等等，以下也可以称为终端。
相关技术中，5G系统中为了灵活高效地使用无线资源，以及满足移动性管理的需求，需要支持广播模式和单播模式的切换。对于广播业务中广播模式和单播模式的切换，通常需要先断开终端与网络侧的连接，然后重新配置参数，继而重新建立会话。
但是，5G网络的部署需要对无线接入网进行升级或者重新部署，因此很难做到全覆盖。未来5G网络中支持广播的终端将不限于电视，也包括用户智能终端和车载移动终端等设备，如果不支持模式切换，就会导致连接中断，影响业务的性能，即使不考虑移动性需求，即在终端不运动的情况下，随着无线资源可用数量的改变及用户业务需求的改变，最适合的无线传输模式还是会改变，即单播还是广播也还是会改变。
因此，5G网络需要解决模式切换和连接管理的问题，在移动性发生改变或者业务流特性发生改变时，可以灵活地进行模式切换。
为了解决上述问题，本申请提出了一种广播业务的模式切换方法，结合上述5G网络架构，下面将对本申请中广播业务的模式切换的方法进行介绍，请参阅图2，图2为本申请实施例提供的一种广播业务的模式切换方法的流程图，本申请实施例至少包括以下步骤：
201、终端与应用服务器间建立触发协调，以确定触发指令。
本实施例中，终端与应用服务器间建立触发协调的过程，即确定5G广播中模式切换的发生，并生成模式切换所对应的触发指令。
在一种可能的场景中，模式切换可以是由终端主导的，具体的，在应用层终端可以实时监测应用层信息，以得到切换信息；其中，切换信息是基于地理位置或业务策略的变化情况确定的，例如：当切换信息是基于地理位置的变化情况确定的时，终端实时监测自身的位置变化情况，当位置变化超过距离阈值时，即生成用于指示广播模式切换的触发指令，由于在5G网络中存在微型基站分布密集的特点，上述距离阈值的大小可以根据终端所处位置周边的基站分布情况确定。当切换信息是基于业务策略的变化情况确定的时，终端获取自身的业务执行情况，当监测到切换广播业务的执行节点时，即可以生成用于指示广播模式切换的触发指令。
另外，在由终端主导模式切换的场景中，还可以是终端侧通信协议的规定，具体的，终端通过获取周边小区的测量报告，所述测量报告包括所述周边小区的广播模式支持情况，然后根据所述测量报告确定对应的广播模式，以确定触发指令。例如，针对AS层进行触发，就是基于测量报告和小区发现，比如，服务小区支持广播，但是邻小区不支持，因此，终端发生移动导致模式切换时，通过RRC信令来实现这种处罚；针对NAS层进行触发，终 端的应用层或者基于其他方式，使得终端决定发起模式的改变，在NAS层，通过修改NAS service request消息或者定义新的NAS消息来实现，上述方式可以通过修订终端通信过程中的标准协议实现。
在另一种可能的场景中，模式切换可以是由应用服务器主导的，具体的，终端接收所述应用服务器发送的所述切换信息，终端根据所述切换信息确定触发指令；即切换信息是由应用服务器侧产生的，具体的产生过程可以基于应用服务器对应的程序策略，或相关人员进行的后台应用更新等，具体形式因实际场景而定。
202、终端向接入网设备发送触发指令。
本实施例中，触发指令可以包括具体的模式选择或者该模式对应的参数配置，也可以只包含模式的标识，待接入网侧进行分析；具体的，触发指令可以是RRC消息、增强的测量报告或者新定义的RRC消息，具体形式因实际场景而定。其中，接入网设备可以是多个NR-RAN gNB的组合。
203、接入网设备之间协调。
本实施例中，接入网设备之间协调主要是看多个相邻的小区是否可以配置为一个广播的小区组，因为一个广播的小区组里，可以有1个或者多个小区，而是否配置为广播的小区组要看基站的能力和资源状况是否允许，进而根据协商的情况确定可用的接入网设备。可以理解的是，接入网设备之间协调需要以基站间消息的方式来实现，如增强现有的Xn接口消息。
204、接入网设备向功能网元发送切换请求。
本实施例中，功能网元即为用于执行5G广播功能的一个或多个核心网中的功能实体，具体数量因实际场景而定。
205、功能网元确定切换模式对应的配置参数。
本实施例中，配置参数即为切换后的模式对应的参数设置，功能网元在执行之前的模式时对应的参数为执行参数，在修改过程中，可以是将执行参数删除，进而输入配置参数，也可以是在执行参数的基础上进行调整，具体的形式因实际场景而定。
206、功能网元向接入网设备发送配置参数。
本实施例中，在控制面上，核心网中关于广播业务的功能网元向NG-RAN发送切换的回应消息，其中包含了要切换到的模式对应的配置参数。在用户面，若提供配置参数对应的接入网设备发生了变化，核心网需在上行方向进行的设备关联的更新，并进行无线侧协议栈SDAP、PDCP、RLC以及MAC的重新配置，其中各层配置可以通过delta方式或者full reconfiguration方式实现。
207、接入网设备更新配置参数。
本实施例中，接入网设备NR-RAN gNB执行配置参数的改变。
208、接入网设备向终端发送配置参数。
本实施例中，接入网设备NR-RAN gNB执行配置参数的改变后，向终端发送RRC消息执行切换。
209、根据配置参数建立连接。
本实施例中，RRC消息发送到终端侧后，终端和接入网设备重新应用新的配置参数建立无线连接。
应当注意的是，重新建立连接的接入网设备可以是之前模式对应的接入网设备，也可以是切换模式后对应的接入网设备，两者可以是同一个接入网设备，也可以是不同的。
结合上述实施例可知，通过终端建立与应用服务器之间的触发协调，以确定用于指示所述终端的广播模式的切换的触发指令；然后根据该触发指令使得接入网设备向功能网元发送切换请求，功能网元根据切换的模式配置相应的模式参数，并对执行参数进行更新，以得到配置参数并向所述终端发送；接下来终端根据配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。从而使得通信系统实现了广播和多播模式的切换，实现对业务灵活性的支持，提高通信过程的流畅度。
上述实施例介绍了由终端发起的5G广播业务的模式切换过程，在另外一种场景中，5G广播业务的模式切换可以是由应用服务器发起的，下面对该场景进行说明，如图3所示，图3为本申请实施例提供的另一种广播业务的模式切换方法的流程图，本申请实施例至少包括以下步骤：
301、应用服务器与终端建立触发协调，以确定触发指令。
本实施例中，应用服务器与终端间建立触发协调的过程即确定5G广播中模式切换的发生，并生成模式切换所对应的触发指令。
在一种可能的场景中，模式切换可以是由应用服务器主导的，具体的，应用服务器获取广播模式的切换信息，以确定触发指令；其中，切换信息可以是应用服务器根据相关应用的策略规定所生成的，也可以是在相关人员的主动模式切换的响应过程中生成的。
在另一种可能的场景中，模式切换可以是由终端主导的，即应用服务器接收终端发送的切换信息，进而确定触发指令；具体的，切换信息可以是终端根据地理位置或业务策略的变化情况而确定，相关描述可以参考图2中步骤201中终端确定切换信息的相关描述，此处不做赘述。
302、应用服务器向功能网元发送触发指令。
本实施例中，应用服务器可以给核心网中的功能网元(或者通过NEF)发送消息，触发切换。
应当注意的是，核心网元也可以由自身检测到的信息进行模式切换操作，例如进行资源优化时，某个地理区域，本来由3个小区构成的广播组来支持业务广播，但由于用户数量的减少，广播的资源利用率并不高，可以切 换为通过单播方式来提供业务传输，反之亦然。
另外，也可以根据路由重配进行切换，即从终端到接入网设备再到服务器或者反方向，业务传输经过的路由可以发生改变，而改变后，可能会出现原本支持广播，但改变后的路径上有功能网元不支持广播了，这种情况也需要切换为单播。
303、功能网元确定切换模式对应的配置参数。
304、功能网元向接入网设备发送配置参数。
305、接入网设备更新配置参数。
306、接入网设备向终端发送配置参数。
307、根据配置参数建立连接。
本实施例中，步骤303-307与图2中步骤205-209相似，具体描述可以进行参照，此处不做赘述。
为了更好的实施本申请实施例的上述方案，下面还提供用于实施上述方案的相关装置。请参阅图4，图4为本申请实施例提供的模式切换装置的结构示意图，模式切换装置400包括：
触发单元401，用于建立与应用服务器之间的触发协调，以确定触发指令，所述触发指令用于指示所述终端的广播模式的切换；
发送单元402，用于向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，所述切换请求用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数；
切换单元403，用于根据所述配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。
在本申请一些可能的实现方式中，所述触发单元401，具体用于实时监测应用层信息，以得到切换信息，所述切换信息是基于地理位置或业务策略的变化情况确定的；
所述触发单元401具体用于：
根据所述切换信息确定触发指令。
在本申请一些可能的实现方式中，所述触发单元401，具体用于接收所述应用服务器发送的所述切换信息；
所述触发单元401，具体用于根据所述切换信息确定触发指令。
在本申请一些可能的实现方式中，所述触发单元401，具体用于获取周边小区的测量报告，所述测量报告包括所述周边小区的广播模式支持情况；
所述触发单元401，具体用于根据所述测量报告确定对应的广播模式，以确定触发指令。
在本申请一些可能的实现方式中，所述发送单元402，具体用于根据所 述广播模式的切换确定对应的参数变化值，以生成资源控制信息；
所述发送单元402，具体用于向接入网设备发送所述触发指令，所述触发指令包括所述资源控制信息，以使所述接入网设备根据所述资源控制信息在多个相邻接入网设备之间进行协商，以匹配切换后的广播模式并向功能网元发送切换请求。
通过终端建立与应用服务器之间的触发协调，以确定用于指示所述终端的广播模式的切换的触发指令；然后根据该触发指令使得接入网设备向功能网元发送切换请求，功能网元根据切换的模式配置相应的模式参数，并对执行参数进行更新，以得到配置参数并向所述终端发送；接下来终端根据配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。从而使得通信系统实现了广播和多播模式的切换，实现对业务灵活性的支持，提高通信过程的流畅度。
本实施例还提供一种应用服务器，如图5所示，是本申请实施例提供的一种服务器的结构示意图，包括：
获取单元501，用于获取广播模式的切换信息，以确定触发指令；
发送单元502，用于向功能网元发送所述触发指令，所述触发指令用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数。
在本申请一些可能的实现方式中，所述获取单元501，具体用于接收所述终端发送的切换信息，所述切换信息基于地理位置或业务策略的变化情况确定；
所述获取单元501，具体用于根据所述切换信息确定触发指令。
本实施例还提供一种服务器，如图6所示，是本申请实施例提供的一种功能网元的结构示意图，包括：
获取单元601，用于获取触发指令，所述触发指令来源于接入网设备、或者来源于应用服务器、或者是所述功能网元基于预设规则确定的，所述预设规则是基于网络资源利用度或下行传输路径的设备对于广播模式的配置情况确定的；
确定单元602，用于根据所述触发指令确定对应的广播模式；
更新单元603，用于根据所述广播模式对执行参数进行更新，得到配置参数；
发送单元604，用于向所述接入网设备发送所述配置参数，以指示所述接入网设备基于所述配置参数与终端建立连接。
本申请实施例还提供了一种广播业务的模式切换装置，请参阅图7，图7是本申请实施例提供的另一种模式切换装置的结构示意图，该模式切换装 置700可因配置或性能不同而产生比较大的差异，可以包括一个或一个以上中央处理器(central processing units，CPU)722(例如，一个或一个以上处理器)和存储器732，一个或一个以上存储应用程序742或数据744的存储介质730(例如一个或一个以上海量存储设备)。其中，存储器732和存储介质730可以是短暂存储或持久存储。存储在存储介质730的程序可以包括一个或一个以上模块(图示没标出)，每个模块可以包括对模式切换装置中的一系列指令操作。更进一步地，中央处理器722可以设置为与存储介质730通信，在模式切换装置700上执行存储介质730中的一系列指令操作。
模式切换装置700还可以包括一个或一个以上电源726，一个或一个以上有线或无线网络接口750，一个或一个以上输入输出接口757，和/或，一个或一个以上操作系统741，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM等等。
上述实施例中由模式切换装置所执行的步骤可以基于该图7所示的模式切换装置结构。
另外上述图5中的应用服务器以及图6中的功能网元也可以按照图7所示的划分方式进行划分，具体参上，此处不做赘述。
本申请实施例中还提供一种计算机可读存储介质，该计算机可读存储介质中存储有模式切换指令，当其在计算机上运行时，使得计算机执行如前述图2至图3所示实施例描述的方法中模式切换装置、应用服务器或功能网元所执行的步骤。
本申请实施例中还提供一种包括模式切换指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如前述图2至图3所示实施例描述的方法中模式切换装置、应用服务器或功能网元所执行的步骤。
本申请实施例还提供了一种模式切换系统，所述模式切换系统可以包含图4或图7所描述实施例中的模式切换装置，或者图5所描述的应用服务器，或者图6所描述的功能网元。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作 为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
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。
所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，可以存储在一个计算机可读取存储介质中。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，模式切换装置，或者网络设备等)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。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (14)

  1. 一种广播业务的模式切换方法，包括：
    终端建立与应用服务器之间的触发协调，以确定触发指令，所述触发指令用于指示所述终端的广播模式的切换；
    所述终端向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，所述切换请求用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数；
    所述终端根据所述配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。
  2. 根据权利要求1所述的方法，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
    所述终端实时监测应用层信息，以得到切换信息，所述切换信息是基于地理位置或业务策略的变化情况确定的；
    所述终端根据所述切换信息确定所述触发指令。
  3. 根据权利要求1所述的方法，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
    所述终端接收所述应用服务器发送的切换信息；
    所述终端根据所述切换信息确定所述触发指令。
  4. 根据权利要求1所述的方法，所述终端建立与应用服务器之间的触发协调，以确定触发指令，包括：
    所述终端获取周边小区的测量报告，所述测量报告包括所述周边小区的广播模式支持情况；
    所述终端根据所述测量报告确定对应的广播模式，以确定所述触发指令。
  5. 根据权利要求1-4任一项所述的方法，所述终端向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，包括：
    所述终端根据所述广播模式的切换确定对应的参数变化值，以生成资源控制信息；
    所述终端向所述接入网设备发送所述触发指令，所述触发指令包括所述资源控制信息，以使所述接入网设备根据所述资源控制信息在多个相邻接入网设备之间进行协商，以匹配切换后的广播模式并向所述功能网元发送所述切换请求。
  6. 一种广播业务的模式切换方法，包括：
    应用服务器获取广播模式的切换信息，以确定触发指令；
    所述应用服务器向功能网元发送所述触发指令，所述触发指令用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备 对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数。
  7. 根据权利要求6所述的方法，所述应用服务器获取广播模式的切换信息，以确定触发指令，包括：
    所述应用服务器接收所述终端发送的切换信息，所述切换信息基于地理位置或业务策略的变化情况确定；
    所述应用服务器根据所述切换信息确定所述触发指令。
  8. 一种广播业务的模式切换方法，包括：
    功能网元获取触发指令，所述触发指令来源于接入网设备、或者来源于应用服务器、或者是所述功能网元基于预设规则确定的，所述预设规则是基于网络资源利用度或下行传输路径的设备对于广播模式的配置情况确定的；
    所述功能网元根据所述触发指令确定对应的广播模式；
    所述功能网元根据所述广播模式对执行参数进行更新，得到配置参数；
    所述功能网元向所述接入网设备发送所述配置参数，以指示所述接入网设备基于所述配置参数与终端建立连接。
  9. 一种广播业务的模式切换装置，包括：
    触发单元，用于建立与应用服务器之间的触发协调，以确定触发指令，所述触发指令用于指示所述终端的广播模式的切换；
    发送单元，用于向接入网设备发送所述触发指令，以使所述接入网设备向功能网元发送切换请求，所述切换请求用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数；
    切换单元，用于根据所述配置参数切换至对应的广播模式，以建立与所述接入网设备之间的无线连接。
  10. 一种广播业务的模式切换装置，包括：
    获取单元，用于获取广播模式的切换信息，以确定触发指令；
    发送单元，用于向功能网元发送所述触发指令，所述触发指令用于指示所述功能网元配置相应的模式参数，所述模式参数用于指示所述接入网设备对执行参数进行更新，以得到配置参数并向所述终端发送所述配置参数。
  11. 一种广播业务的模式切换装置，包括：
    获取单元，用于获取触发指令，所述触发指令来源于接入网设备、或者来源于应用服务器、或者是所述功能网元基于预设规则确定的，所述预设规则是基于网络资源利用度或下行传输路径的设备对于广播模式的配置情况确定的；
    确定单元，用于根据所述触发指令确定对应的广播模式；
    更新单元，用于根据所述广播模式对执行参数进行更新，得到配置参数；
    发送单元，用于向所述接入网设备发送所述配置参数，以指示所述接入网设备基于所述配置参数与终端建立连接。
  12. 一种计算机设备，其特征在于，所述计算机设备包括处理器以及存储器：
    所述存储器用于存储程序代码；所述处理器用于根据所述程序代码中的指令执行权利要求1至5任一项所述的广播业务的模式切换方法；或，所述处理器用于根据所述程序代码中的指令执行权利要求6或7所述的广播业务的模式切换方法；或，所述处理器用于根据所述程序代码中的指令执行权利要求8所述的广播业务的模式切换方法。
  13. 一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述权利要求1至5所述的广播业务的模式切换方法；或，当其在计算机上运行时，使得计算机执行上述权利要求6或7所述的广播业务的模式切换方法；或，当其在计算机上运行时，使得计算机执行上述权利要求8所述的广播业务的模式切换方法。
  14. 一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行如上述权利要求1至5所述的广播业务的模式切换方法，或者权利要求6或7所述的广播业务的模式切换方法，或者权利要求8所述的广播业务的模式切换方法。
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