WO2023124506A1 - 网络切换处理方法、装置、计算机可读介质及电子设备 - Google Patents

网络切换处理方法、装置、计算机可读介质及电子设备 Download PDF

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WO2023124506A1
WO2023124506A1 PCT/CN2022/128992 CN2022128992W WO2023124506A1 WO 2023124506 A1 WO2023124506 A1 WO 2023124506A1 CN 2022128992 W CN2022128992 W CN 2022128992W WO 2023124506 A1 WO2023124506 A1 WO 2023124506A1
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network
handover
policy
switching
service flow
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PCT/CN2022/128992
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English (en)
French (fr)
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雷艺学
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腾讯科技（深圳）有限公司
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Publication of WO2023124506A1 publication Critical patent/WO2023124506A1/zh
Priority to US18/350,023 priority Critical patent/US20230354141A1/en

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H04W36/385—Reselection control by fixed network equipment of the core network
    • 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
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0044—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of quality context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic

Definitions

  • the present application relates to the field of communication technology, and in particular to network switching processing technology.
  • the 5G system has two networking modes: NSA (Non-Standalone, non-independent networking) and SA (Standalone, independent networking). Both of these two networking modes introduce a switching mechanism to avoid data loss when a user equipment (User Equipment, UE) switches a connected access network device (such as a base station).
  • UE User Equipment
  • a connected access network device such as a base station.
  • handover mechanisms for example, reduce data transmission delay caused by handover
  • these handover mechanisms generally have the problems of high cost and excessive network resource consumption.
  • the embodiments of the present application provide a network handover processing method, device, computer-readable medium, and electronic equipment, which can ensure that the handover strategy matches the actual service flow characteristic information to a certain extent, and avoid Generate higher switching costs and waste network resources.
  • the embodiment of the present application provides a network handover processing method, which is executed by a policy control function entity, including:
  • the service flow characteristic information is used to indicate the characteristics of the service data packets transmitted between the application side and the user equipment, and the service flow characteristic information is the network data analysis function
  • the entity generates according to the service data packet transmitted in the network; generates a handover policy based on the service flow characteristic information, and the handover policy is a policy followed when the access network entity connected to the user equipment is handed over; sending the handover policy to the session management function entity, so that the session management function entity configures the handover policy to other network entities.
  • the embodiment of the present application provides a network handover processing method, which is implemented by a session management functional entity, including:
  • the handover policy indicates the policy followed when the access network entity connected to the user equipment is handed over, and the handover policy is sent by the policy control functional entity based on the network data analysis functional entity
  • the service flow characteristic information is generated by the service flow characteristic information, and the service flow characteristic information is used to indicate the characteristics of the service data packet transmitted between the application side and the user equipment.
  • the service flow characteristic information is the network data analysis function entity according to the network Generated by the service data packet transmitted in the network; configuring the handover policy to other network entities, so that the other network entities perform a handover operation based on the handover policy when the access network entity is handed over.
  • the embodiment of the present application provides a network handover processing device, including: a first receiving unit configured to receive service flow feature information sent by a network data analysis function entity, the service flow feature information is used to indicate the application side The characteristics of the service data packets transmitted between the user equipment, the service flow characteristic information is generated by the network data analysis function entity according to the service data packets transmitted in the network; the generating unit is configured to be based on the The service flow characteristic information is used to generate a handover policy to be followed when the access network entity connected to the user equipment is handed over; a sending unit is configured to send the handover policy to a session management functional entity, so that the session management The functional entity configures the handover policy to other network entities.
  • an embodiment of the present application provides a network handover processing device, including: a second receiving unit configured to receive a handover policy sent by a policy control functional entity, where the handover policy is received by the policy control functional entity generated after the service flow characteristic information sent by the network data analysis function entity, the service flow characteristic information is used to indicate the characteristics of the service data packet transmitted between the application side and the user equipment, and the service flow characteristic information is the generated by the network data analysis function entity according to the service data packets transmitted in the network; the processing unit is configured to configure the handover policy to other network entities, so that the other network entities are in the access network entity When a handover occurs, a handover operation is performed based on the handover policy.
  • the embodiments of the present application provide a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the network switching processing method as described in the foregoing embodiments is implemented.
  • the embodiment of the present application provides an electronic device, including: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more When each processor executes, the electronic device implements the network switching processing method described in the above-mentioned embodiments.
  • the embodiment of the present application provides a computer program product or computer program, where the computer program product or computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium.
  • the processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the network switching processing method provided in the above-mentioned various optional embodiments.
  • the policy control functional entity receives the service flow characteristic information sent by the network data analysis functional entity, and based on the service flow characteristic information, generates the Follow the handover policy, and then send the handover policy to the session management function entity, so that the session management function entity configures the handover policy to other network entities, so that, according to the service flow characteristic information, flexibly adjust the switching time of the access network entity Follow the switching strategy to ensure that the switching strategy matches the actual service flow feature information, avoiding high switching costs and more network resource consumption.
  • FIG. 1 shows a schematic diagram of a networking mode of a 5G system
  • FIG. 2 shows a schematic diagram of a networking mode of a 5G system
  • FIG. 3 shows a schematic diagram of a network handover process of a 5G system
  • FIG. 4 shows a schematic diagram of a network handover process of a 5G system
  • FIG. 5 shows a schematic diagram of a network switching process
  • FIG. 6 shows a schematic diagram of the transmission interval of data packets and the interruption time caused by switching
  • FIG. 7 shows a flowchart of a network handover processing method according to an embodiment of the present application.
  • FIG. 8 shows a flowchart of a network handover processing method according to an embodiment of the present application
  • FIG. 9 shows a flowchart of a network handover processing method according to an embodiment of the present application.
  • FIG. 10 shows a block diagram of a network handover processing device according to an embodiment of the present application.
  • FIG. 11 shows a block diagram of a network handover processing device according to an embodiment of the present application.
  • Fig. 12 shows a schematic structural diagram of a computer system suitable for implementing the electronic device of the embodiment of the present application.
  • Example embodiments will now be described in a more complete manner with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in various forms and should not be construed as limited to these examples; rather, these embodiments are provided so that this application will be thorough and complete, and to fully convey the concepts of example embodiments communicated to those skilled in the art.
  • the "plurality” mentioned in this article refers to two or more than two.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships. For example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character “/” generally indicates that the contextual objects are an "or” relationship.
  • the networking mode shown in Figure 1 is NSA, that is, non-independent networking, where the dotted line represents the control plane, which is used for transmission management , the signaling channel required for resource scheduling; the solid line represents the user plane, that is, the channel used to send specific data.
  • NSA adopts dual connection mode, 5G NR (New Radio) control plane is anchored in 4G LTE (Long Term Evolution, long-term evolution), and needs to use 4G core network EPC (Evolved Packet Core, evolved packet core network).
  • 5G NR New Radio
  • 4G LTE Long Term Evolution, long-term evolution
  • EPC Evolved Packet Core, evolved packet core network
  • the networking mode shown in Figure 2 is SA, that is, independent networking.
  • 5G NR is directly connected to the 5G core network (NR Core), no longer dependent on 4G, and is a complete and independent 5G network.
  • NR Core 5G core network
  • the 5G system also introduces a handover mechanism to realize the handover between the access network devices connected to the UE.
  • the handover is more complicated. Specifically, since 5G NR is anchored to 4G LTE, if the handover between NR and NR changes to LTE anchoring, multiple steps are required to complete. Specifically as shown in Figure 3, when switching between NR and NR, the source subcarrier needs to be deleted first, the source NR resource is released, and then the handover between LTE and LTE is performed, and then the target subcarrier is added, and the target NR resource is reallocated. The whole process is cumbersome and has a large time delay.
  • the handover from NR to NR is independent of LTE handover, which is relatively simple and has low delay.
  • the source MN sends a handover request (that is, a handover request) to the target MN.
  • the target MN sends an SN addition request (ie, SN addition request) to the SN.
  • the SN feeds back an SN addition request acknowledgment message (ie, SN addition request ACK) to the target MN.
  • an SN addition request acknowledgment message ie, SN addition request ACK
  • the target MN sends a handover request acknowledgment message (ie handover request ACK) to the source MN.
  • a handover request acknowledgment message ie handover request ACK
  • the source MN sends an SN release request (ie, SN release request) to the SN.
  • the SN sends an SN release request acknowledgment message (ie SN release request ACK) to the source MN.
  • SN release request ACK an SN release request acknowledgment message
  • the source MN sends an RRC (Radio Resource Control, radio resource control) connection reconfiguration message (that is, RRC connection reconfiguration) to the UE.
  • RRC Radio Resource Control, radio resource control
  • the UE initiates a random access procedure (that is, a random access procedure) to the target MN.
  • a random access procedure that is, a random access procedure
  • the UE initiates a random access procedure (that is, a random access procedure) to the SN.
  • the target MN sends a reconfiguration complete message (ie, SN reconfiguration complete) to the SN.
  • a reconfiguration complete message ie, SN reconfiguration complete
  • the target MN sends a PDU (Protocol Data Unit, protocol data unit) session path switching request (ie, a PDU session path switch request) to the AMF (Access and Mobility Management Function, access and mobility management function).
  • PDU Protocol Data Unit, protocol data unit
  • AMF Access and Mobility Management Function, access and mobility management function
  • the AMF modifies the UPF (User Plane Function, user plane function) that bears the PDU session, that is, the bearer modification process.
  • UPF User Plane Function, user plane function
  • the AMF sends a PDU session path switch request acknowledgment message (ie, PDU session path switch request ACK) to the target MN.
  • PDU session path switch request ACK PDU session path switch request acknowledgment message
  • the target MN sends a UE context release message (ie, UE context release) to the source MN.
  • UE context release message ie, UE context release
  • the source MN initiates a UE release request (ie UE release request) to the SN.
  • a UE release request ie UE release request
  • the handover performance is ensured by configuring dual connectivity, which is expensive and consumes more network resources.
  • the data forwarding mechanism includes data forwarding (data forwarding), in which the base station before the handover forwards the buffered data to the base station after the handover, so as to ensure that the data is not lost.
  • the transmission interval (i.e., arrival interval) of data packets is T1
  • the interruption time caused by switching is T2.
  • the technical scheme of the embodiment of the present application proposes a new network handover processing scheme, which can flexibly adjust the handover strategy followed by the access network entity when handover occurs according to the service flow characteristic information, so as to ensure that the handover policy is consistent with the actual service flow feature information, thereby avoiding high switching costs and occupying too many network resources.
  • FIG. 7 shows a flowchart of a network handover processing method provided by an embodiment of the present application, and the network handover processing method may be executed by a policy control function (Policy Control function, PCF) entity.
  • Policy Control function Policy Control function
  • the network handover processing method includes at least S710 to S730, which are described in detail as follows:
  • the service flow characteristic information sent by the network data analysis function entity is received, the service flow characteristic information is used to indicate the characteristics of the service data packet transmitted between the application side and the user equipment, and the service flow characteristic information is the network data analysis function
  • the entity is generated based on the business data packets transmitted in the network.
  • the application side may be an AF (Application Function, application function), or may also be an AS (Application Server, application server).
  • the user equipment may be a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, a smart home, a vehicle terminal, etc., but is not limited thereto.
  • NWDAF Network Data Analytics Function
  • NWDAF can collect raw data from core network elements, AF, and OAM (Operation Administration and Maintenance) systems, etc., intelligently analyze the raw data, and output analyzed data for network and service optimization.
  • NWDAF can evaluate and analyze different types of services by collecting information such as network performance, service load in specific areas, and service experience, and use reliable network performance analysis and prediction models to build service profiles and determine service QoE (Quality of Experience, experience quality) and business path, 5G QoS (Quality of Service, service quality) and other internal correlations.
  • service QoE Quality of Experience, experience quality
  • 5G QoS Quality of Service, service quality
  • NWDAF can support PCF to request or subscribe to relevant analysis data, and obtain notifications, that is, PCF can subscribe to the detection service of service flow characteristic information from the network data analysis functional entity, and then, when the network data analysis functional entity obtains the service flow characteristic information through analysis Afterwards, the service flow feature information can be fed back to the PCF.
  • the service flow characteristic information includes at least one of the following: a transmission interval of a service data packet, a packet size of a service data packet, and an importance of a service data packet.
  • the transmission interval of a service data packet refers to the sending time interval between two adjacent service data packets, or the receiving time interval between two adjacent service data packets, for example, if the service data If the packet is sent periodically, then the period is the transmission interval of the service data packet.
  • the packet size of the service data packet refers to the size of the data volume of the service data packet.
  • the importance of the service data packet can be reflected by the type of the service data packet, for example, the importance of a key frame (such as an I frame) is higher than that of a non-key frame (such as a P frame).
  • a handover policy is generated based on the service flow characteristic information, and the handover policy is a policy to be followed when the access network entity to which the user equipment is connected is handed over.
  • the access network entity may be an NR base station. If it is a 4G network, the access network entity may be an LTE base station.
  • the handover strategy includes at least one of the following: whether to perform data forwarding processing during handover; the handover delay that can be tolerated during handover; the context transfer requirements of the source end and the destination end during handover; Including any one of full configuration, partial configuration, and incremental configuration; when switching, the user equipment implements a strategy of connecting first and then disconnecting, or a strategy of disconnecting before connecting.
  • whether to perform data forwarding processing means whether to perform data forwarding processing. For example, if due to the requirements of real-time business, even if data forwarding is performed, it will not help the real-time business, and it will also cause waste of network resources. In this case, data forwarding processing is not required.
  • the tolerable handover delay during handover is used to indicate the maximum delay requirement in the handover process. Normally, the maximum handover delay should be less than or equal to the tolerable handover delay.
  • the context transfer requirements of the source end and the destination end during switching may include any one of full configuration (full configuration), partial configuration (Partial configuration) and incremental configuration (Delta configuration).
  • Connect before break is make before break, and break before make is break before make. If it is a strategy of connect first and then break, then the smoothness of the switching process can be guaranteed, but the UE needs to be able to connect to multiple access network devices at the same time. ability.
  • the strategies of connect before disconnect and disconnect before connect can be based on a dual-connection architecture (that is, the access network device adopts the MN and SN architecture), or can be based on a non-dual-connection architecture.
  • this application implements The technical solution of the example is not only applicable to the dual-connection architecture, but also applicable to the non-dual-connection architecture.
  • the service flow feature information includes the transmission interval of the service data packet
  • it when generating the switching strategy, it can be generated according to the transmission interval of the service data packet, including the switching delay that can be tolerated during switching switching strategy.
  • the tolerable handover delay during handover is less than or equal to the transmission interval of the service data packet, the handover performance can be guaranteed. Therefore, according to the transmission interval of the service data packet, a The handover strategy of the tolerable handover delay.
  • the tolerable switching delay during switching is less than or equal to the transmission interval of service data packets.
  • the service flow feature information includes at least the importance of the service data packet
  • it may be generated according to the importance of the service data packet, at least including whether to perform data forwarding during the handover Handling of switching strategies.
  • the generated switching strategy may be to perform data forwarding processing; if the business data packets are not important, then in order to reduce the waste of network resources, the generated switching strategy may be to not perform data forwarding processing ; if a part of business data packets is important and another part of business data packets is not important, then the switching strategy generated can also be that some business data packets (i.e. important business data packets) carry out data forwarding processing, while other business data packets (i.e. not Important business data packets) do not perform data forwarding processing.
  • the generated handover policy includes the policy of the user equipment performing a connection before disconnection or a policy of disconnecting before connection during handover, then before generating the handover policy, it is necessary to obtain the network connection information of the user equipment. Capability information, where the network connection capability information is used to indicate the number of access network entities that the user equipment can connect to at the same time. If the network connection capability information of the user equipment indicates that the user equipment can connect to multiple access network entities at the same time, then the generated handover strategy may be that the user equipment implements a policy of connecting first and then disconnecting. If the network connection capability information of the user equipment indicates that the user equipment If multiple access network entities cannot be connected at the same time, then the generated handover policy is a policy that the user equipment executes disconnect before connecting during handover.
  • the handover policy configured in other network entities may also be obtained, and then generate the The switching policy followed by the entity when switching occurs. For example, according to the service flow characteristic information and the handover policies configured in other network entities, determine whether to update the handover policies configured in other network entities, and generate a new handover policy if updating is required.
  • S730 send the generated handover policy to the session management function entity, so that the session management function entity configures the handover policy to other network entities.
  • other network entities may include AMF, access network entities (such as base station equipment), user equipment, and so on.
  • the PCF can send the generated switching strategy to the SMF (Session Management Function, session management function), and then the SMF sends it to the AMF, and then the AMF can configure the switching strategy to the access network entity and the user equipment.
  • the handover strategy in this embodiment of the present application may include a handover strategy for each network entity, or may be a handover strategy for the entire network entity.
  • Fig. 8 shows a flow chart of a network handover processing method provided by an embodiment of the present application, and the network handover processing method may be executed by a session management function entity.
  • the network switching processing method includes at least S810 to S820, which are described in detail as follows:
  • the handover policy sent by the policy control functional entity is received, the handover policy indicates the policy to be followed when the access network entity connected to the user equipment is handed over, and the handover policy is sent by the policy control functional entity based on the network data analysis functional entity
  • the service flow feature information is used to indicate the characteristics of the service data packets transmitted between the application side and the user equipment.
  • the service flow feature information is based on the service data packets transmitted in the network by the network data analysis function entity Generated.
  • the handover strategy includes at least one of the following: whether to perform data forwarding processing during handover; the handover delay that can be tolerated during handover; the context transfer requirements of the source end and the destination end during handover; Including any one of full configuration, partial configuration, and incremental configuration; when switching, the user equipment implements a strategy of connecting first and then disconnecting, or a strategy of disconnecting before connecting.
  • the service flow characteristic information includes at least one of the following: a transmission interval of a service data packet, a packet size of a service data packet, and an importance of a service data packet.
  • the handover policy is configured to other network entities, so that other network entities perform a handover operation based on the handover policy when the access network entity is handed over.
  • the session management function entity can configure the handover policy to the access and mobility management function entity and the user equipment, and then the access and mobility management function entity updates the handover policy for the user equipment and service data packets based on the handover policy.
  • policy, and the access and mobility management functional entity configures the handover policy to the connected access network entity (specifically, for example, the access network entity before and after the handover).
  • the technical solution of the embodiment of the present application can flexibly adjust the switching strategy followed by the access network entity when switching occurs according to the service flow characteristic information, which can ensure that the switching strategy matches the actual service flow characteristic information and avoid high switching costs and more network resource consumption.
  • the application data is forwarded through the end-to-end path before the handover.
  • the UE connects to the UPF through the old base station, and then connects to the Application Server through the UPF.
  • AF and AS are drawn together, but actually they are control plane network elements and user plane network elements respectively, and can be deployed separately.
  • the PCF subscribes to the service flow feature information detection and analysis service from the NWDAF.
  • the NWDAF analyzes and obtains service flow feature information by acquiring information in different network elements.
  • the network elements that the NWDAF acquires information include but are not limited to equipment such as UPF, NG-RAN (that is, the new base station shown in FIG. 9 ).
  • the service flow feature information includes, but is not limited to: the arrival interval, packet size feature, importance, etc. of the periodic service data flow.
  • the NWDAF provides the acquired service flow feature information to the PCF.
  • the PCF generates a corresponding handover strategy according to the obtained service flow characteristic information and information from other 5GC network elements.
  • the information from other 5GC network elements includes, but is not limited to, UE-specific handover policy information already configured on network elements such as SMF and AMF.
  • the handover strategy includes at least one of the following: whether to perform data forwarding processing during handover; handover delay that can be tolerated during handover; context transfer requirements of the source end and destination end during handover, and the context transfer requirements include full configuration, partial Any one of configuration and incremental configuration; when switching, the user equipment implements the strategy of connecting first and then disconnecting, or the strategy of disconnecting before connecting.
  • whether to perform data forwarding processing is whether to perform data forwarding processing. For example, due to the requirements of real-time business, even if data forwarding is performed, it will not help the real-time business, and it will also cause waste of network resources. In this case, data forwarding processing is not required.
  • the tolerable handover delay during handover is used to indicate the maximum delay requirement in the handover process.
  • the maximum time delay in the handover process should be less than or equal to the tolerable handover delay.
  • the context transfer requirements of the source and destination during switching may include full configuration, Partial configuration and Delta configuration.
  • Connect before break is make before break, and break before make is break before make. If it is a strategy of connect first and then break, then the smoothness of the switching process can be guaranteed, but the UE needs to be able to connect to multiple access network devices at the same time. ability.
  • the service flow feature information includes the transmission interval of the service data packet
  • it when generating the switching strategy, it can be generated according to the transmission interval of the service data packet, including the switching delay that can be tolerated during switching switching strategy.
  • the tolerable handover delay during handover is less than or equal to the transmission interval of the service data packet, the handover performance can be guaranteed. Therefore, according to the transmission interval of the service data packet, a The handover strategy of the tolerable handover delay.
  • the tolerable switching delay during switching is less than or equal to the transmission interval of service data packets.
  • the service flow feature information includes at least the importance of the service data packet
  • it may be generated according to the importance of the service data packet, at least including whether to perform data forwarding during the handover Handling of switching strategies.
  • the generated switching strategy may be to perform data forwarding processing; if the business data packets are not important, then in order to reduce the waste of network resources, the generated switching strategy may be to not perform data forwarding processing ; if a part of business data packets is important and another part of business data packets is not important, then the switching strategy generated can also be that some business data packets (i.e. important business data packets) carry out data forwarding processing, while other business data packets (i.e. not Important business data packets) do not perform data forwarding processing.
  • the handover policy when generating the handover policy, it may be determined whether to update the handover policy configured in other network entities according to the service flow characteristic information and the handover policy configured in other network entities, if necessary Update, then generate a new switching strategy.
  • the generated handover strategy is configured from the PCF to the AMF and the base station.
  • the PCF configures the handover strategy to the SMF
  • the SMF configures the handover strategy to the AMF, and after configuration, it is necessary to update the handover strategy of the specific UE and the specific service in the AMF
  • the AMF The handover policy is configured to the base station (including the old base station and the new base station), and this step will configure or update the context information of the gNB, thereby affecting the handover policy of the UE.
  • the generated handover strategy for the specific UE is configured to the UE through the AMF.
  • the switching strategy configured on the UE will affect the corresponding caching and data forwarding strategies.
  • the switching process will update the switching policy configuration, that is, whether there is data caching and forwarding (data forwarding), whether lossless switching is required, etc.
  • the application data is forwarded through the switched end-to-end path. Specifically, the UE connects to the UPF through the new base station, and then connects to the Application Server through the UPF.
  • the technical solution of the embodiment of the present application can solve the common problem of high cost of network resources due to the large amount of buffering and data forwarding in real-time multimedia, XR and other services, and can save the cost of data buffering and forwarding operations required for lossless switching.
  • Fig. 10 shows a block diagram of a network handover processing device according to an embodiment of the present application, and the network handover processing device may be set in a policy control functional entity.
  • a network handover processing apparatus 1000 includes: a first receiving unit 1002 , a generating unit 1004 and a sending unit 1006 .
  • the first receiving unit 1002 is configured to receive the service flow characteristic information sent by the network data analysis function entity, the service flow characteristic information is used to indicate the characteristics of the service data packets transmitted between the application side and the user equipment, and the service flow
  • the feature information is generated by the network data analysis function entity according to the service data packets transmitted in the network;
  • the generating unit 1004 is configured to generate a switching policy based on the service flow feature information, and the switching policy is in the user equipment A policy to be followed when the connected access network entity is handed over;
  • the sending unit 1006 is configured to send the handover policy to the session management function entity, so that the session management function entity configures the handover policy to other network entities.
  • the first receiving unit 1002 is configured to: subscribe to the service flow characteristic information detection service of the network data analysis functional entity; receive the service based on the network data analysis functional entity Describe the service flow feature information fed back by the detection service.
  • the switching strategy includes at least one of the following:
  • the context transfer requirements of the source end and the destination end during switching include any one of full configuration, partial configuration and incremental configuration;
  • the user equipment implements the strategy of connecting first and then disconnecting, or the strategy of disconnecting before connecting.
  • the service flow characteristic information includes at least one of the following: the transmission interval of the service data packet, the packet size of the service data packet, and the importance of the service data packet.
  • the service flow characteristic information includes at least the transmission interval of the service data packet; the generating unit 1004 is configured to: generate at least the information containing The switching strategy of the switching delay that can be tolerated during switching.
  • the tolerable switching delay during the switching is less than or equal to the transmission interval of the service data packet.
  • the service flow characteristic information includes at least the importance of the service data packet; the generating unit 1004 is configured to: generate at least the The switching policy of whether to perform data forwarding processing during switching.
  • the handover policy includes whether the user equipment performs a policy of connecting first before disconnecting or a policy of disconnecting before connecting; before generating the handover policy, the generating unit 1004 obtains The network connection capability information of the user equipment, where the network connection capability information is used to indicate the number of access network entities that the user equipment can connect to at the same time.
  • the generating unit 1004 is configured to: acquire the handover policy configured in the other network entity; Switching strategy, generate a switching strategy.
  • Fig. 11 shows a block diagram of a network handover processing device according to an embodiment of the present application, and the network handover processing device may be set in a session management function entity.
  • an apparatus 1100 for network handover processing includes: a second receiving unit 1102 and a processing unit 1104 .
  • the second receiving unit 1102 is configured to receive the handover policy sent by the policy control functional entity, the handover policy indicates the policy followed when the access network entity connected to the user equipment is handed over, and the handover policy is the policy control
  • the functional entity generates based on the service flow characteristic information sent by the network data analysis functional entity, the service flow characteristic information is used to indicate the characteristics of the service data packet transmitted between the application side and the user equipment, and the service flow characteristic information It is generated by the network data analysis function entity according to the service data packet transmitted in the network;
  • the processing unit 1104 is configured to configure the handover policy to other network entities, so that the other network entities When an entity is switched, a switching operation is performed based on the switching policy.
  • the processing unit 1104 is configured to: configure the handover policy to the access and mobility management functional entity and the user equipment to indicate the access and mobility
  • the mobility management function entity updates the handover strategy for the user equipment and the service data packet based on the handover strategy, and instructs the access and mobility management function entity to configure the handover strategy for the connected access network entity .
  • Fig. 12 shows a schematic structural diagram of a computer system suitable for implementing the electronic device of the embodiment of the present application.
  • a computer system 1200 includes a central processing unit (Central Processing Unit, CPU) 1201, which can be stored in a program in a read-only memory (Read-Only Memory, ROM) 1202 or loaded from a storage part 1208 to a random Access programs in the memory (Random Access Memory, RAM) 1203 to perform various appropriate actions and processes, such as performing the methods described in the above-mentioned embodiments.
  • CPU Central Processing Unit
  • RAM Random Access Memory
  • RAM 1203 various programs and data necessary for system operation are also stored.
  • the CPU 1201, ROM 1202, and RAM 1203 are connected to each other through a bus 1204.
  • An input/output (Input/Output, I/O) interface 1205 is also connected to the bus 1204 .
  • the following components are connected to the I/O interface 1205: an input part 1206 including a keyboard, a mouse, etc.; an output part 1207 including a cathode ray tube (Cathode Ray Tube, CRT), a liquid crystal display (Liquid Crystal Display, LCD), etc., and a speaker ; comprise the storage part 1208 of hard disk etc.; And comprise the communication part 1209 of the network interface card such as LAN (Local Area Network, local area network) card, modem etc. The communication section 1209 performs communication processing via a network such as the Internet.
  • a drive 1210 is also connected to the I/O interface 1205 as needed.
  • a removable medium 1211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive 1210 as necessary so that a computer program read therefrom is installed into the storage section 1208 as necessary.
  • the processes described above with reference to the flowcharts can be implemented as computer software programs.
  • the embodiments of the present application include a computer program product, which includes a computer program carried on a computer-readable medium, where the computer program includes a computer program for executing the method shown in the flowchart.
  • the computer program may be downloaded and installed from a network via communication portion 1209 and/or installed from removable media 1211 .
  • CPU central processing unit
  • the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two.
  • a computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof.
  • Computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any suitable one of the above The combination.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, in which a computer-readable computer program is carried. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .
  • a computer program embodied on a computer readable medium can be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.
  • each block in the flowchart or block diagram may represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or part of the code includes one or more executable instruction.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block in the block diagrams or flowchart illustrations, and combinations of blocks in the block diagrams or flowchart illustrations can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a A combination of dedicated hardware and computer instructions.
  • the units described in the embodiments of the present application may be implemented by software or by hardware, and the described units may also be set in a processor. Wherein, the names of these units do not constitute a limitation of the unit itself under certain circumstances.
  • the present application also provides a computer-readable medium.
  • the computer-readable medium may be included in the electronic device described in the above embodiments; it may also exist independently without being assembled into the electronic device. middle.
  • the above-mentioned computer-readable medium carries one or more programs, and when the above-mentioned one or more programs are executed by an electronic device, the electronic device is made to implement the methods described in the above-mentioned embodiments.
  • the technical solutions according to the embodiments of the present application can be embodied in the form of software products, which can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to make a computing device (which may be a personal computer, server, touch terminal, or network device, etc.) execute the method according to the embodiment of the present application.
  • a non-volatile storage medium which can be CD-ROM, U disk, mobile hard disk, etc.
  • a computing device which may be a personal computer, server, touch terminal, or network device, etc.

Abstract

本申请的实施例提供了一种网络切换处理方法、装置、计算机可读介质及电子设备。该网络切换处理方法包括：接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；基于所述业务流特征信息，生成在所述用户设备连接的接入网实体发生切换时所遵循的切换策略；将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。本申请实施例的技术方案可以保证切换策略与实际的业务流特征信息相匹配，避免产生较高的切换成本和浪费网络资源。

Description

网络切换处理方法、装置、计算机可读介质及电子设备
本申请要求于2021年12月31日提交中国专利局、申请号为2021116794345、申请名称为“网络切换处理方法、装置、计算机可读介质及电子设备”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
本申请涉及通信技术领域，具体涉及网络切换处理技术。
背景技术
5G系统有两种组网模式：NSA(Non-Standalone，非独立组网)和SA(Standalone，独立组网)。这两种组网模式中均引入了切换机制，以避免用户设备(User Equipment，UE)切换所连接的接入网设备(如基站)时产生数据丢失。为了保证切换性能(如降低切换造成的数据传输延时)，相关技术提出了多种切换机制，但是这些切换机制普遍存在成本过高、所需耗费的网络资源过多的问题。
发明内容
本申请的实施例提供了一种网络切换处理方法、装置、计算机可读介质及电子设备，能够在一定程度上保证切换策略与实际的业务流特征信息相匹配，在保证切换效果的同时，避免产生较高的切换成本和浪费网络资源。
本申请的其他特性和优点将通过下面的详细描述变得显然，或部分地通过本申请的实践而习得。
第一方面，本申请实施例提供了一种网络切换处理方法，由策略控制功能实体执行，包括：
接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；基于所述业务流特征信息，生成切换策略，所述切换策略是在所述用户设备连接的接入网实体发生切换时所遵循的策略；将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。
第二方面，本申请实施例提供了一种网络切换处理方法，由会话管理功能实体实现，包括：
接收策略控制功能实体发送的切换策略，所述切换策略表示在用户设备连接的接入网实体发生切换时所遵循的策略，所述切换策略是所述策略控制功能实体基于网络数据分析功能实体发送的业务流特征信息生成的，所述业务流特征信息用于指示应用侧与所述用户设备之间传输的业务数据包的特征， 所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；将所述切换策略配置给其它网络实体，以使所述其它网络实体在所述接入网实体发生切换时基于所述切换策略执行切换操作。
第三方面，本申请实施例提供了一种网络切换处理装置，包括：第一接收单元，配置为接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间所传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包所生成的；生成单元，配置为基于所述业务流特征信息，生成在所述用户设备所连接的接入网实体发生切换时所要遵循的切换策略；发送单元，配置为将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。
第四方面，本申请实施例提供了一种网络切换处理装置，包括：第二接收单元，配置为接收策略控制功能实体发送的切换策略，所述切换策略是所述策略控制功能实体在接收到网络数据分析功能实体发送的业务流特征信息后生成的，所述业务流特征信息用于指示应用侧与所述用户设备之间所传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包所生成的；处理单元，配置为将所述切换策略配置给其它网络实体，以使所述其它网络实体在所述接入网实体发生切换时基于所述切换策略执行切换操作。
第五方面，本申请实施例提供了一种计算机可读介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如上述实施例中所述的网络切换处理方法。
第六方面，本申请实施例提供了一种电子设备，包括：一个或多个处理器；存储装置，用于存储一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行时，使得所述电子设备实现如上述实施例中所述的网络切换处理方法。
第七方面，本申请实施例提供了一种计算机程序产品或计算机程序，该计算机程序产品或计算机程序包括计算机指令，该计算机指令存储在计算机可读存储介质中。计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得该计算机设备执行上述各种可选实施例中提供的网络切换处理方法。
在本申请实施例提供的技术方案中，策略控制功能实体接收网络数据分析功能实体发送的业务流特征信息，并基于该业务流特征信息，生成在用户设备连接的接入网实体发生切换时所遵循的切换策略，然后将切换策略发送给会话管理功能实体，以使会话管理功能实体将切换策略配置给其它网络实体，如此，根据业务流特征信息，灵活地调整接入网实体发生切换时所遵循的切换策略，保证切换策略与实际的业务流特征信息相匹配，避免产生较高 的切换成本和较多的网络资源消耗。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1示出了5G系统的一种组网模式示意图；
图2示出了5G系统的一种组网模式示意图；
图3示出了5G系统的一种网络切换过程示意图；
图4示出了5G系统的一种网络切换过程示意图；
图5示出了一种网络切换过程示意图；
图6示出了数据包的传输间隔与切换导致的中断时间的示意图；
图7示出了根据本申请的一个实施例的网络切换处理方法的流程图；
图8示出了根据本申请的一个实施例的网络切换处理方法的流程图；
图9示出了根据本申请的一个实施例的网络切换处理方法的流程图；
图10示出了根据本申请的一个实施例的网络切换处理装置的框图；
图11示出了根据本申请的一个实施例的网络切换处理装置的框图；
图12示出了适于用来实现本申请实施例的电子设备的计算机系统的结构示意图。
具体实施方式
现在参考附图以更全面的方式描述示例实施方式。然而，示例的实施方式能够以各种形式实施，且不应被理解为仅限于这些范例；相反，提供这些实施方式的目的是使得本申请更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。
此外，本申请所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。在下面的描述中，有许多具体细节从而可以充分理解本申请的实施例。然而，本领域技术人员应意识到，在实施本申请的技术方案时可以不需用到实施例中的所有细节特征，可以省略一个或更多特定细节，或者可以采用其它的方法、元件、装置、步骤等。
附图中所示的方框图仅仅是功能实体，不一定必须与物理上独立的实体相对应。即，可以采用软件形式来实现这些功能实体，或在一个或多个硬件模块或集成电路中实现这些功能实体，或在不同网络和/或处理器装置和/或微控制器装置中实现这些功能实体。
附图中所示的流程图仅是示例性说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解，而有的操作/步骤可以合并或部分合并，因此实际执行的顺序有可能根据实际情况改变。
需要说明的是：在本文中提及的“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这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
在5G系统中提出了如图1和图2所示的两种组网模式，图1所示的组网模式为NSA，即非独立组网，其中，虚线表示控制面，即用于发送管理、调度资源所需的信令的通道；实线表示用户面，即用于发送具体数据的通道。NSA采用双连接方式，5G NR(New Radio)控制面锚定于4G LTE(Long Term Evolution，长期演进)，并且需要利用4G核心网EPC(Evolved Packet Core，演进分组核心网)。
图2所示的组网模式为SA，即独立组网，5G NR直接接入5G核心网(NR Core)，不再依赖于4G，是完整独立的5G网络。
5G系统中还引入了切换机制，来实现UE所连接的接入网设备之间的切换，对于非独立组网NSA模式，由于5G与4G在接入网级互通，因此在进行切换时较为复杂，具体的，由于5G NR锚定于4G LTE，NR与NR之间的切换若发生LTE锚定改变，需要多个步骤才能完成。具体如图3所示，当NR与NR切换时，首先需要删除源副载波，释放源NR资源，然后再执行LTE到LTE之间的切换，接着再添加目标副载波，重新分配目标NR资源，整个过程较为繁琐，且时延较大。
对于独立组网SA模式，如图4所示，NR到NR的切换是独立于LTE的切换，相对较为简单，且时延较低。
此外，为了保证切换性能，相关技术还提出了基于双连接架构的切换机制，即接入网设备采用MN(Master Node，主节点)和SN(Secondary Node，辅节点)架构，在MN切换过程中，SN可以保持不变，从而保证数据可以通过SN继续转发。具体过程如图5所示，包括：
S501，源MN向目标MN发送切换请求(即handover request)。
S502，目标MN向SN发送SN添加请求(即SN addition request)。
S503，SN向目标MN反馈SN添加请求确认消息(即SN addition request ACK)。
S504，目标MN向源MN发送切换请求确认消息(即handover request ACK)。
S505，源MN向SN发送SN释放请求(即SN release request)。
S506，SN向源MN发送SN释放请求确认消息(即SN release request  ACK)。
S507，源MN向UE发送RRC(Radio Resource Control，无线资源控制)连接重配置消息(即RRC connection reconfiguration)。
S508，UE向目标MN发起随机接入过程(即random access procedure)。
S509，UE与目标MN之间的RRC连接重配置过程完成(即RRC connection reconfiguration complete)。
S510，UE向SN发起随机接入过程(即random access procedure)。
S511，目标MN向SN发送重配置完成消息(即SN reconfiguration complete)。
S512，目标MN向AMF(Access and Mobility Management Function，接入与移动性管理功能)发送PDU(Protocol Data Unit，协议数据单元)会话路径切换请求(即PDU session path switch request)。
S513，AMF修改承载PDU会话的UPF(User Plane Function，用户面功能)，即bearer modification过程。
S514，AMF向目标MN发送PDU会话路径切换请求确认消息(即PDU session path switch request ACK)。
S515，目标MN向源MN发送UE上下文释放消息(即UE context release)。
S516，源MN向SN发起UE释放请求(即UE release request)。
在图5所示的切换流程中，通过配置双连接的方式来保证切换性能，代价较高，所需消耗的网络资源较多。而在一些其它的技术方案中，为了保证切换性能，还提出了在切换中通过缓存数据和数据转发机制来保证数据无丢失传输。其中，数据转发机制包括data forwarding(数据前送)，是由切换前的基站将缓存的数据转发给切换后的基站，以此保证数据不丢失。
如今，实时多媒体业务和诸如XR(Extended Reality，扩展现实)、AR(Augmented Reality，增强现实)等业务迅速发展和普及，并且实时多媒体业务和XR等业务需求的数据传输速率较高，缓存和数据量很大，如果对于这类业务不加区分地采用缓存和data forwarding机制，那么，数据传输实时无丢失和不乱序的传输将需要花费极高的网络资源成本。
但是，由于数据包在传输过程中存在传输间隔，因此，只要切换发生在传输时间内、且切换时延不超过传输间隔，即不会影响切换性能，在这种情况下，追求过低的切换时延对应用层用户体验的改善也没有帮助，不必要地浪费了网络资源。
具体如图6所示，数据包的传输间隔(即到达间隔)为T1，切换导致的中断时间为T2，只要切换发生在数据包的传输间隔内、且T2<T1，即并不影响业务侧特性。可见，为了将切换中断时延优化减少至比T2更小的时长而付出的代价是并不值得的，也就是说，相关技术中的切换机制普遍占用 了过多的额外资源，付出的成本过高。
基于此，本申请实施例的技术方案提出了一种新的网络切换处理方案，可以根据业务流特征信息，灵活调整接入网实体发生切换时遵循的切换策略，保证切换策略与实际的业务流特征信息相匹配，进而避免产生较高的切换成本，占用过多的网络资源。
以下对本申请实施例的技术方案的实现细节进行详细阐述：
图7示出了本申请实施例提供的网络切换处理方法的流程图，该网络切换处理方法可以由策略控制功能(Policy Control function，PCF)实体来执行。参照图7所示，该网络切换处理方法至少包括S710至S730，详细介绍如下：
在S710中，接收网络数据分析功能实体发送的业务流特征信息，该业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，该业务流特征信息是网络数据分析功能实体根据网络中传输的业务数据包生成的。
在本申请的一个实施例中，应用侧可以是AF(Application Function，应用功能)，或者也可以是AS(Application Server，应用服务器)。用户设备可以是智能手机、平板电脑、笔记本电脑、台式计算机、智能音箱、智能手表、智能家居、车载终端等，但并不局限于此。
网络数据分析功能(Network Data Analytics Function，NWDAF)实体是一个数据感知分析网元，其可以基于网络数据对网络进行自动感知和分析。具体地，NWDAF可以从核心网网元、AF、OAM(Operation Administration and Maintenance，操作维护管理)系统等收集原始数据，并对原始数据进行智能分析，输出分析数据以用于优化网络和业务。比如，NWDAF可以通过收集网络性能、特定区域业务负荷、业务体验等信息，利用可靠的网络性能分析和预测模型，对不同类型的业务进行评估、分析，构建业务画像，确定业务的QoE(Quality of Experience，体验质量)和业务路径、5G QoS(Quality of Service，服务质量)等内在关联等。
NWDAF能够支持PCF请求或订阅相关的分析数据，并获取到通知，即PCF可以向网络数据分析功能实体订阅业务流特征信息的检测服务，进而，当网络数据分析功能实体通过分析得到业务流特征信息之后，可以将业务流特征信息反馈给PCF。
在本申请的一个实施例中，业务流特征信息包括以下至少一种：业务数据包的传输间隔、业务数据包的包大小、业务数据包的重要性。
可选地，业务数据包的传输间隔指的是相邻的两个业务数据包之间的发送时间间隔，或者是相邻的两个业务数据包之间的接收时间间隔，比如，若业务数据包是周期性发送的，那么该周期即为业务数据包的传输间隔。
业务数据包的包大小指的是业务数据包的数据量大小。业务数据包的重 要性比如可以通过业务数据包的类型来体现，如关键帧(如I帧)的重要性高于非关键帧(如P帧)的重要性。
继续参照图7所示，在S720中，基于该业务流特征信息，生成切换策略，该切换策略是在用户设备连接的接入网实体发生切换时所遵循的策略。
可选地，如果是5G网络，那么接入网实体可以是NR基站。如果是4G网络，那么接入网实体可以是LTE基站。
在本申请的一个实施例中，切换策略包括以下至少一种：切换时是否进行数据前送处理；切换时所能容忍的切换时延；切换时源端和目的端的上下文转移要求，上下文转移要求包括全量配置、部分配置和增量配置中的任一种；切换时用户设备执行先连后断的策略、还是先断后连的策略。
可选地，是否进行数据前送处理，即为是否需要进行data forwarding处理。比如，若由于实时性业务的要求，即便进行了data forwarding，那么也对实时性业务没有帮助，而且还造成了网络资源浪费，这种情况下就不需要进行data forwarding处理。
切换时所能容忍的切换时延，用于表示切换过程中的最大时延要求，通常情况下，切换过程的最大时延应该小于或等于所能容忍的切换时延。切换时源端和目的端的上下文转移要求可以包括全量配置(full configuration)、部分配置(Partial configuration)和增量配置(Delta configuration)中的任一种。
先连后断即为make before break，先断后连即为break before make，如果是先连后断的策略，那么可以保证切换过程的平顺性，但是需要UE具有同时连接多个接入网设备的能力。需要说明的是：先连后断和先断后连的策略可以基于双连接架构(即接入网设备采用MN和SN的架构)，也可以基于非双连接架构，除此之外，本申请实施例的技术方案不仅适用于双连接架构，而且也适用于非双连接架构。
在本申请的一个实施例中，如果业务流特征信息包括业务数据包的传输间隔，那么在生成切换策略时，可以根据业务数据包的传输间隔，生成包含有切换时所能容忍的切换时延的切换策略。具体地，如图6所示，由于切换时所能容忍的切换时延小于或等于业务数据包的传输间隔，就可以保证切换性能，因此可以根据业务数据包的传输间隔，生成包含有切换时所能容忍的切换时延的切换策略。可选地，切换时所能容忍的切换时延小于或等于业务数据包的传输间隔。
在本申请的一个实施例中，如果业务流特征信息至少包括业务数据包的重要性，那么在生成切换策略时，可以根据业务数据包的重要性，生成至少包含有切换时是否进行数据前送处理的切换策略。具体而言，如果业务数据包比较重要，那么生成的切换策略可以是进行数据前送处理；如果业务数据包不重要，那么为了减少网络资源浪费，生成的切换策略可以是不进行数据 前送处理；如果一部分业务数据包重要，另一部分业务数据包不重要，那么生成的切换策略也可以是部分业务数据包(即重要的业务数据包)进行数据前送处理，而其它业务数据包(即不重要的业务数据包)不进行数据前送处理。
在本申请的一个实施例中，如果生成的切换策略中包含有切换时用户设备执行先连后断的策略、还是先断后连的策略，那么在生成切换策略之前，需要获取用户设备的网络连接能力信息，该网络连接能力信息用于表示用户设备能够同时连接的接入网实体的数量。如果用户设备的网络连接能力信息表示用户设备能够同时连接多个接入网实体，那么所生成的切换策略可以是用户设备执行先连后断的策略，如果用户设备的网络连接能力信息表示用户设备不能同时连接多个接入网实体，那么所生成的切换策略是切换时用户设备执行先断后连的策略。
在本申请的一个实施例中，在生成切换策略时，也可以获取其它网络实体中已配置的切换策略，然后根据业务流特征信息和其它网络实体中已配置的切换策略，生成在接入网实体发生切换时所遵循的切换策略。比如，根据业务流特征信息和其它网络实体中已配置的切换策略，确定是否要对其它网络实体中已配置的切换策略进行更新，如果需要进行更新，那么再生成新的切换策略。
继续参照图7所示，在S730中，将生成的切换策略发送给会话管理功能实体，以使会话管理功能实体将切换策略配置给其它网络实体。
可选地，其它网络实体可以包括AMF、接入网实体(如基站设备)和用户设备等。具体而言，PCF可以将生成的切换策略发送给SMF(Session Management Function，会话管理功能)，然后由SMF发送给AMF，进而AMF可以将切换策略配置给接入网实体和用户设备。需要说明的是，本申请实施例中的切换策略可以包含有针对各个网络实体的切换策略，也可以是针对网络实体整体的切换策略。
图8示出了本申请实施例提供的网络切换处理方法的流程图，该网络切换处理方法可以由会话管理功能实体来执行。参照图8所示，该网络切换处理方法至少包括S810至S820，详细介绍如下：
在S810中，接收策略控制功能实体发送的切换策略，该切换策略表示在用户设备连接的接入网实体发生切换时所遵循的策略，该切换策略是策略控制功能实体基于网络数据分析功能实体发送的业务流特征信息生成的，该业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，该业务流特征信息是网络数据分析功能实体根据网络中传输的业务数据包生成的。
在本申请的一个实施例中，切换策略包括以下至少一种：切换时是否进行数据前送处理；切换时所能容忍的切换时延；切换时源端和目的端的上下 文转移要求，上下文转移要求包括全量配置、部分配置和增量配置中的任一种；切换时用户设备执行先连后断的策略、还是先断后连的策略。
在本申请的一个实施例中，业务流特征信息包括以下至少一种：业务数据包的传输间隔、业务数据包的包大小、业务数据包的重要性。
关于切换策略和业务流特征信息的具体说明请参照前述实施例的技术方案，不再赘述。
在S820中，将切换策略配置给其它网络实体，以使其它网络实体在接入网实体发生切换时基于切换策略执行切换操作。
具体而言，会话管理功能实体可以将切换策略配置给接入与移动性管理功能实体和用户设备，然后由接入与移动性管理功能实体基于该切换策略更新针对用户设备及业务数据包的切换策略，并由接入与移动性管理功能实体向所连接的接入网实体(具体比如可以是切换前和切换后的接入网实体)配置切换策略。
本申请实施例的技术方案可以根据业务流特征信息，灵活调整接入网实体发生切换时所遵循的切换策略，可以保证切换策略与实际的业务流特征信息相匹配，避免产生较高的切换成本和较多的网络资源消耗。
具体地，针对多媒体业务和诸如XR、AR等业务，考虑到其带宽极大，进行缓存或者数据转发需要占用大量网络资源，因此通过NWDAF的辅助，获取业务流特征信息，如包间隔等参数，将此参数提供到控制面网元，形成相应的切换策略。以下结合图9，以5G网络为例，对本申请实施例的技术方案的实现细节进行详细阐述，具体包括如下步骤：
S901，应用数据通过切换前的端到端路径进行转发。具体来说，UE通过旧基站连接到UPF，再通过UPF连接到应用服务器Application Server。在图9所示的实施例中，AF和AS画在了一起，实际上二者分别为控制面网元和用户面网元，可以分开部署。
S902，PCF向NWDAF订阅业务流特征信息检测分析服务。
S903，NWDAF通过获取不同网元中的信息来分析得到业务流特征信息。可选地，NWDAF获取信息的网元包括但不限于UPF、NG-RAN(即图9中所示的新基站)等设备。
可选地，业务流特征信息包括但不限于：周期性业务数据流的到达间隔、包大小特征、重要性等。
S904，NWDAF将获取到的业务流特征信息提供给PCF。
S905，PCF根据所获得的业务流特性信息，以及来自其它5GC网元的信息，生成相应的切换策略。
可选地，来自其它5GC网元的信息包括但不限于SMF、AMF等网元上已经配置的、特定UE的切换策略信息。
可选地，切换策略包括以下至少一种：切换时是否进行数据前送处理； 切换时所能容忍的切换时延；切换时源端和目的端的上下文转移要求，上下文转移要求包括全量配置、部分配置和增量配置中的任一种；切换时用户设备执行先连后断的策略、还是先断后连的策略。
可选地，是否进行数据前送处理即为是否需要进行data forwarding处理。比如若由于实时性业务的要求，即便进行了data forwarding，那么也对实时性业务没有帮助，而且还造成了网络资源浪费，这种情况下就不需要进行data forwarding处理。
切换时所能容忍的切换时延用于表示切换过程中的最大时延要求，通常情况下，切换过程的最大时延应该小于或等于所能容忍的切换时延。切换时源端和目的端的上下文转移要求可以包括full configuration、Partial configuration和Delta configuration。
先连后断即为make before break，先断后连即为break before make，如果是先连后断的策略，那么可以保证切换过程的平顺性，但是需要UE具有同时连接多个接入网设备的能力。
在本申请的一个实施例中，如果业务流特征信息包括业务数据包的传输间隔，那么在生成切换策略时，可以根据业务数据包的传输间隔，生成包含有切换时所能容忍的切换时延的切换策略。具体地，如图6所示，由于切换时所能容忍的切换时延小于或等于业务数据包的传输间隔，就可以保证切换性能，因此可以根据业务数据包的传输间隔，生成包含有切换时所能容忍的切换时延的切换策略。可选地，切换时所能容忍的切换时延小于或等于业务数据包的传输间隔。
在本申请的一个实施例中，如果业务流特征信息至少包括业务数据包的重要性，那么在生成切换策略时，可以根据业务数据包的重要性，生成至少包含有切换时是否进行数据前送处理的切换策略。具体而言，如果业务数据包比较重要，那么生成的切换策略可以是进行数据前送处理；如果业务数据包不重要，那么为了减少网络资源浪费，生成的切换策略可以是不进行数据前送处理；如果一部分业务数据包重要，另一部分业务数据包不重要，那么生成的切换策略也可以是部分业务数据包(即重要的业务数据包)进行数据前送处理，而其它业务数据包(即不重要的业务数据包)不进行数据前送处理。
在本申请的一个实施例中，在生成切换策略时，可以根据业务流特征信息和其它网络实体中已配置的切换策略，确定是否要对其它网络实体中已配置的切换策略进行更新，如果需要进行更新，那么再生成新的切换策略。
S906，生成的切换策略从PCF向AMF及基站进行配置。
具体地，在S906a中，PCF把切换策略配置给SMF；在S906b中，SMF把切换策略配置给AMF，配置后需要更新AMF中关于该特定UE及特定业务的切换策略；在S906c中，AMF把切换策略配置给基站(包括旧基站和 新基站)，该步骤会配置或者更新gNB的上下文信息，从而影响到UE的切换策略。
S907，生成的针对该特定UE的切换策略，通过AMF向UE配置。在UE上配置的切换策略，会影响到相应的缓存和数据转发策略。
S908，根据所配置的策略执行切换过程。该切换过程会更新切换策略配置，即有无数据缓存和转发(即data forwarding)，是否要无损切换等。
S909，应用数据通过切换后的端到端路径进行转发。具体来说，UE通过新基站连接到UPF，再通过UPF连接到应用服务器Application Server。
本申请实施例的技术方案能够解决实时多媒体、XR等业务普遍存在的因缓存和数据转发量较大而导致网络资源成本过高的问题，可以节省无损切换所需要的数据缓存和转发操作代价。
以下介绍本申请的装置实施例，可以用于执行本申请上述实施例中的网络切换处理方法。对于本申请装置实施例中未披露的细节，请参照本申请上述的网络切换处理方法的实施例。
图10示出了根据本申请的一个实施例的网络切换处理装置的框图，该网络切换处理装置可以设置在策略控制功能实体内。
参照图10所示，根据本申请的一个实施例的网络切换处理装置1000，包括：第一接收单元1002、生成单元1004和发送单元1006。
其中，第一接收单元1002配置为接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；生成单元1004配置为基于所述业务流特征信息，生成切换策略，所述切换策略是在所述用户设备连接的接入网实体发生切换时所遵循的策略；发送单元1006配置为将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。
在本申请的一些实施例中，基于前述方案，所述第一接收单元1002配置为：向所述网络数据分析功能实体订阅业务流特征信息的检测服务；接收所述网络数据分析功能实体基于所述检测服务反馈的业务流特征信息。
在本申请的一些实施例中，基于前述方案，所述切换策略包括以下至少一种：
切换时是否进行数据前送处理；
切换时所能容忍的切换时延；
切换时源端和目的端的上下文转移要求，所述上下文转移要求包括全量配置、部分配置和增量配置中的任一种；
切换时用户设备执行先连后断的策略、还是先断后连的策略。
在本申请的一些实施例中，基于前述方案，所述业务流特征信息包括以 下至少一种：业务数据包的传输间隔、业务数据包的包大小、业务数据包的重要性。
在本申请的一些实施例中，基于前述方案，所述业务流特征信息至少包括业务数据包的传输间隔；所述生成单元1004配置为：根据所述业务数据包的传输间隔，生成至少包含有切换时所能容忍的切换时延的切换策略。
在本申请的一些实施例中，基于前述方案，所述切换时所能容忍的切换时延小于或等于所述业务数据包的传输间隔。
在本申请的一些实施例中，基于前述方案，所述业务流特征信息至少包括业务数据包的重要性；所述生成单元1004配置为：根据所述业务数据包的重要性，生成至少包含有切换时是否进行数据前送处理的切换策略。
在本申请的一些实施例中，基于前述方案，所述切换策略包括切换时用户设备执行先连后断的策略、还是先断后连的策略；所述生成单元1004在生成切换策略之前，获取所述用户设备的网络连接能力信息，所述网络连接能力信息用于表示所述用户设备能够同时连接的接入网实体的数量。
在本申请的一些实施例中，基于前述方案，所述生成单元1004配置为：获取所述其它网络实体中已配置的切换策略；根据所述业务流特征信息和所述其它网络实体中已配置的切换策略，生成切换策略。
图11示出了根据本申请的一个实施例的网络切换处理装置的框图，该网络切换处理装置可以设置在会话管理功能实体内。
参照图11所示，根据本申请的一个实施例的网络切换处理装置1100，包括：第二接收单元1102和处理单元1104。
其中，第二接收单元1102配置为接收策略控制功能实体发送的切换策略，所述切换策略表示在用户设备连接的接入网实体发生切换时所遵循的策略，所述切换策略是所述策略控制功能实体基于网络数据分析功能实体发送的业务流特征信息生成的，所述业务流特征信息用于指示应用侧与所述用户设备之间所传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；处理单元1104配置为将所述切换策略配置给其它网络实体，以使所述其它网络实体在所述接入网实体发生切换时基于所述切换策略执行切换操作。
在本申请的一些实施例中，基于前述方案，所述处理单元1104配置为：将所述切换策略配置给接入与移动性管理功能实体和所述用户设备，以指示所述接入与移动性管理功能实体基于所述切换策略更新针对所述用户设备及所述业务数据包的切换策略，以及指示所述接入与移动性管理功能实体向所连接的接入网实体配置所述切换策略。
图12示出了适于用来实现本申请实施例的电子设备的计算机系统的结构示意图。
需要说明的是，图12示出的电子设备的计算机系统1200仅是一个示例， 不应对本申请实施例的功能和使用范围带来任何限制。
如图12所示，计算机系统1200包括中央处理单元(Central Processing Unit，CPU)1201，其可以根据存储在只读存储器(Read-Only Memory，ROM)1202中的程序或者从存储部分1208加载到随机访问存储器(Random Access Memory，RAM)1203中的程序而执行各种适当的动作和处理，例如执行上述实施例中所述的方法。在RAM 1203中，还存储有系统操作所需的各种程序和数据。CPU 1201、ROM 1202以及RAM 1203通过总线1204彼此相连。输入/输出(Input/Output，I/O)接口1205也连接至总线1204。
以下部件连接至I/O接口1205：包括键盘、鼠标等的输入部分1206；包括诸如阴极射线管(Cathode Ray Tube，CRT)、液晶显示器(Liquid Crystal Display，LCD)等以及扬声器等的输出部分1207；包括硬盘等的存储部分1208；以及包括诸如LAN(Local Area Network，局域网)卡、调制解调器等的网络接口卡的通信部分1209。通信部分1209经由诸如因特网的网络执行通信处理。驱动器1210也根据需要连接至I/O接口1205。可拆卸介质1211，诸如磁盘、光盘、磁光盘、半导体存储器等等，根据需要安装在驱动器1210上，以便于从其上读出的计算机程序根据需要被安装入存储部分1208。
特别地，根据本申请的实施例，上文参考流程图描述的过程可以被实现为计算机软件程序。例如，本申请的实施例包括一种计算机程序产品，其包括承载在计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的计算机程序。在这样的实施例中，该计算机程序可以通过通信部分1209从网络上被下载和安装，和/或从可拆卸介质1211被安装。在该计算机程序被中央处理单元(CPU)1201执行时，执行本申请的系统中限定的各种功能。
需要说明的是，本申请实施例所示的计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存、光纤、便携式紧凑磁盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本申请中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。而在本申请中，计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的计算机程序。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计 算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。计算机可读介质上包含的计算机程序可以用任何适当的介质传输，包括但不限于：无线、有线等等，或者上述的任意合适的组合。
附图中的流程图和框图，图示了按照本申请各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。其中，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，上述模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图或流程图中的每个方框、以及框图或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本申请实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现，所描述的单元也可以设置在处理器中。其中，这些单元的名称在某种情况下并不构成对该单元本身的限定。
作为另一方面，本申请还提供了一种计算机可读介质，该计算机可读介质可以是上述实施例中描述的电子设备中所包含的；也可以是单独存在，而未装配入该电子设备中。上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被一个该电子设备执行时，使得该电子设备实现上述实施例中所述的方法。
应当注意，尽管在上文详细描述中提及了用于动作执行的设备的若干模块或者单元，但是这种划分并非强制性的。实际上，根据本申请的实施方式，上文描述的两个或更多模块或者单元的特征和功能可以在一个模块或者单元中具体化。反之，上文描述的一个模块或者单元的特征和功能可以进一步划分为由多个模块或者单元来具体化。
通过以上的实施方式的描述，本领域的技术人员易于理解，这里描述的示例实施方式可以通过软件实现，也可以通过软件结合必要的硬件的方式来实现。因此，根据本申请实施方式的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中或网络上，包括若干指令以使得一台计算设备(可以是个人计算机、服务器、触控终端、或者网络设备等)执行根据本申请实施方式的方法。
本领域技术人员在考虑说明书及实践这里公开的实施方式后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适 应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本申请并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本申请的范围仅由所附的权利要求来限制。

Claims (16)

  1. 一种网络切换处理方法，由策略控制功能实体执行，包括：
    接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；
    基于所述业务流特征信息，生成切换策略，所述切换策略是在所述用户设备连接的接入网实体发生切换时所遵循的策略；
    将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。
  2. 根据权利要求1所述的网络切换处理方法，所述接收网络数据分析功能实体发送的业务流特征信息，包括：
    向所述网络数据分析功能实体订阅业务流特征信息的检测服务；
    接收所述网络数据分析功能实体基于所述检测服务反馈的所述业务流特征信息。
  3. 根据权利要求1所述的网络切换处理方法，所述切换策略包括以下至少一种：
    切换时是否进行数据前送处理；
    切换时所能容忍的切换时延；
    切换时源端和目的端的上下文转移要求，所述上下文转移要求包括全量配置、部分配置和增量配置中的任一种；
    切换时用户设备执行先连后断的策略、还是先断后连的策略。
  4. 根据权利要求1所述的网络切换处理方法，所述业务流特征信息包括以下至少一种：业务数据包的传输间隔、业务数据包的包大小、业务数据包的重要性。
  5. 根据权利要求1所述的网络切换处理方法，所述业务流特征信息至少包括业务数据包的传输间隔；
    所述基于所述业务流特征信息，生成切换策略，包括：
    根据所述业务数据包的传输间隔，生成至少包含有切换时所能容忍的切换时延的切换策略。
  6. 根据权利要求5所述的网络切换处理方法，所述切换时所能容忍的切换时延小于或等于所述业务数据包的传输间隔。
  7. 根据权利要求1所述的网络切换处理方法，所述业务流特征信息至少包括业务数据包的重要性；
    所述基于所述业务流特征信息，生成切换策略，包括：
    根据所述业务数据包的重要性，生成至少包含有切换时是否进行数据前送处理的切换策略。
  8. 根据权利要求1所述的网络切换处理方法，所述切换策略包括切换时用户设备执行先连后断的策略、还是先断后连的策略；
    在所述基于所述业务流特征信息，生成切换策略之前，所述网络切换处理方法还包括：
    获取所述用户设备的网络连接能力信息，所述网络连接能力信息用于表示所述用户设备能够同时连接的接入网实体的数量。
  9. 根据权利要求1至8中任一项所述的网络切换处理方法，所述基于所述业务流特征信息，生成切换策略，包括：
    获取所述其它网络实体中已配置的切换策略；
    根据所述业务流特征信息和所述其它网络实体中已配置的切换策略，生成所述切换策略。
  10. 一种网络切换处理方法，由会话管理功能实体执行，包括：
    接收策略控制功能实体发送的切换策略，所述切换策略表示在用户设备连接的接入网实体发生切换时所遵循的策略，所述切换策略是所述策略控制功能实体基于网络数据分析功能实体发送的业务流特征信息生成的，所述业务流特征信息用于指示应用侧与所述用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；
    将所述切换策略配置给其它网络实体，以使所述其它网络实体在所述接入网实体发生切换时基于所述切换策略执行切换操作。
  11. 根据权利要求10所述的网络切换处理方法，所述将所述切换策略配置给其它网络实体，包括：
    将所述切换策略配置给接入与移动性管理功能实体和所述用户设备，以指示所述接入与移动性管理功能实体基于所述切换策略更新针对所述用户设备及所述业务数据包的切换策略，以及指示所述接入与移动性管理功能实体向所连接的接入网实体配置所述切换策略。
  12. 一种网络切换处理装置，包括：
    第一接收单元，配置为接收网络数据分析功能实体发送的业务流特征信息，所述业务流特征信息用于指示应用侧与用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；
    生成单元，配置为基于所述业务流特征信息，生成切换策略，所述切换策略是在所述用户设备连接的接入网实体发生切换时所遵循的策略；
    发送单元，配置为将所述切换策略发送给会话管理功能实体，以使所述会话管理功能实体将所述切换策略配置给其它网络实体。
  13. 一种网络切换处理装置，包括：
    第二接收单元，配置为接收策略控制功能实体发送的切换策略，所述切 换策略表示在用户设备连接的接入网实体发生切换时所遵循的策略，所述切换策略是所述策略控制功能实体基于网络数据分析功能实体发送的业务流特征信息生成的，所述业务流特征信息用于指示应用侧与所述用户设备之间传输的业务数据包的特征，所述业务流特征信息是所述网络数据分析功能实体根据网络中传输的所述业务数据包生成的；
    处理单元，配置为将所述切换策略配置给其它网络实体，以使所述其它网络实体在所述接入网实体发生切换时基于所述切换策略执行切换操作。
  14. 一种计算机可读介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的网络切换处理方法。
  15. 一种电子设备，包括：
    一个或多个处理器；
    存储装置，用于存储一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行时，使得所述电子设备实现如权利要求1至11中任一项所述的网络切换处理方法。
  16. 一种计算机程序产品，包括计算机程序或者指令，所述计算机程序或者所述指令被处理器执行时，实现权利要求1至11中任一项所述的网络切换处理方法。
PCT/CN2022/128992 2021-12-31 2022-11-01 网络切换处理方法、装置、计算机可读介质及电子设备 WO2023124506A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
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JP2015002431A (ja) * 2013-06-14 2015-01-05 株式会社Ｎｔｔドコモ 複数の無線ベアラにアクセスする方法及び装置
CN110708734A (zh) * 2019-10-12 2020-01-17 中国联合网络通信集团有限公司 一种切换的方法、网络设备、终端及切换系统
CN112584447A (zh) * 2019-09-29 2021-03-30 索尼公司 无线通信系统中的电子设备和方法
CN113438704A (zh) * 2020-03-23 2021-09-24 华为技术有限公司 一种切换方法及设备

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Publication number Priority date Publication date Assignee Title
JP2015002431A (ja) * 2013-06-14 2015-01-05 株式会社Ｎｔｔドコモ 複数の無線ベアラにアクセスする方法及び装置
CN112584447A (zh) * 2019-09-29 2021-03-30 索尼公司 无线通信系统中的电子设备和方法
CN110708734A (zh) * 2019-10-12 2020-01-17 中国联合网络通信集团有限公司 一种切换的方法、网络设备、终端及切换系统
CN113438704A (zh) * 2020-03-23 2021-09-24 华为技术有限公司 一种切换方法及设备

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