WO2023280131A1 - 会话管理方法、实体、网络设备和存储介质 - Google Patents

会话管理方法、实体、网络设备和存储介质 Download PDF

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Publication number
WO2023280131A1
WO2023280131A1 PCT/CN2022/103773 CN2022103773W WO2023280131A1 WO 2023280131 A1 WO2023280131 A1 WO 2023280131A1 CN 2022103773 W CN2022103773 W CN 2022103773W WO 2023280131 A1 WO2023280131 A1 WO 2023280131A1
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Prior art keywords
group
session
entity
level
response
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English (en)
French (fr)
Inventor
陈琳
丰孝英
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ZTE Corp
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ZTE Corp
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Priority to EP22836882.5A priority Critical patent/EP4346244A4/en
Priority to US18/575,848 priority patent/US20240372903A1/en
Publication of WO2023280131A1 publication Critical patent/WO2023280131A1/zh
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    • 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
    • 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
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements specially adapted for data communications, e.g. authentication, authorisation and accounting [AAA] framework
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements specially adapted for data communications, e.g. authentication, authorisation and accounting [AAA] framework
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/61—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP based on the service used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8066—According to the number of recipients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8066—According to the number of recipients
    • H04M15/8072—Group, conference or multi-party call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/82—Criteria or parameters used for performing billing operations
    • H04M15/8228—Session based
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • 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
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/186—Processing of subscriber group data

Definitions

  • the present application relates to the field of mobile communication, in particular to a session management method, entity, network equipment and storage medium.
  • 5G fifth-generation mobile communication
  • VN Virtual Network
  • Group group
  • policy control and billing are all based on PDU (Protocol Data Unit, Protocol Data Unit) session (Session) granularity.
  • PDU Protocol Data Unit
  • Session Session
  • LAN Local Area Network
  • An embodiment of the present application provides a session management method, which is applied to a session management function SMF entity.
  • the session management method includes: sending a group-level session management request to the control plane entity based on business requirements, wherein the group-level session management request carries a group information, the group information is used to represent the virtual network group that needs to perform group-level session management; receive the response message returned by the control plane entity in response to the group-level session management request; and carry out the virtual network group according to the content carried in the response message Corresponding session service management.
  • the embodiment of the present application also provides a session management method, which is applied to the group management function GMF entity.
  • the session management method includes: receiving the registration request of the session management function SMF entity, and the registration request carries the supported data network name and the supported virtual network name. Network group information; store data network name and virtual network group information; return registration response to SMF entity.
  • the embodiment of the present application also provides a session management method, which is applied to a policy control function PCF entity.
  • the session management method includes: receiving a group-level session establishment request from a session management function SMF entity, and the group-level session establishment request carries a virtual network group group information; perform session authorization on the virtual network group according to the group information; if the authorization is successful, a group-level session establishment success response will be returned; if the authorization fails, a group-level session establishment failure response will be returned, and the session establishment failure response will be returned carries the failure reason value.
  • the embodiment of the present application also provides a session management method, which is applied to a unified data management function UDM entity.
  • the session management method includes: receiving a group session registration request from a session management function SMF entity, wherein the group session registration request carries virtual Group information and group session information of the network group; store group information and group session information of the virtual network group; and return a group session registration success response to the SMF entity.
  • the embodiment of the present application also provides a session management method, which is applied to the charging function CHF entity.
  • the session management method includes: receiving the group-level charging session establishment request of the session management function SMF entity, and carrying the Group information of the virtual network group; perform group-level session charging control on the virtual network group; return a group-level charging session establishment response, and the group-level charging session establishment response carries the charging control result.
  • the embodiment of the present application also provides a session management function SMF entity, including: a sending module configured to send a group-level session management request to the control plane entity based on business requirements, wherein the group-level session management request carries group information, The group information is used to represent the virtual network group that needs group-level session management; the receiving module is configured to receive the response message returned by the control plane entity in response to the group-level session management request; The corresponding session service management is performed on the virtual network group.
  • a session management function SMF entity including: a sending module configured to send a group-level session management request to the control plane entity based on business requirements, wherein the group-level session management request carries group information, The group information is used to represent the virtual network group that needs group-level session management; the receiving module is configured to receive the response message returned by the control plane entity in response to the group-level session management request; The corresponding session service management is performed on the virtual network group.
  • the embodiment of the present application also provides a group management function GMF entity, including: a receiving module configured to receive the registration request of the session management function SMF entity, and the registration request carries the supported data network name and supported virtual network group information ;
  • the storage module is configured to store the data network name and virtual network group information;
  • the sending module is configured to return a registration response to the SMF entity.
  • the embodiment of the present application also provides a policy control function PCF entity, including: a receiving module configured to receive a group-level session establishment request of a session management function SMF entity, and the group-level session establishment request carries group information of a virtual network group ;
  • the authorization module is configured to authorize the session of the virtual network group according to the group information;
  • the sending module is configured to return a group-level session establishment success response if the authorization is successful;
  • the sending module is also used to return the group level session if the authorization fails.
  • Level session establishment failure response, and the failure reason value is carried in the session establishment failure response.
  • the embodiment of the present application also provides a unified data management function UDM entity, including: a receiving module configured to receive a group session registration request of a session management function SMF entity, wherein the group session registration request carries the information of the virtual network group Group information and group session information; a storage module configured to store group information and group session information of the virtual network group; a sending module configured to return a group session registration success response to the SMF entity.
  • a receiving module configured to receive a group session registration request of a session management function SMF entity, wherein the group session registration request carries the information of the virtual network group Group information and group session information
  • a storage module configured to store group information and group session information of the virtual network group
  • a sending module configured to return a group session registration success response to the SMF entity.
  • the embodiment of the present application also provides a charging function CHF entity, including: a receiving module configured to receive a group-level charging session establishment request of a session management function SMF entity, and the group-level charging session establishment request carries a virtual network group group information; the control module is configured to control the charging of the group-level session on the virtual network group; the sending module is configured to return the group-level charging session establishment response, and the group-level charging session establishment response carries the accounting fee control results.
  • a receiving module configured to receive a group-level charging session establishment request of a session management function SMF entity, and the group-level charging session establishment request carries a virtual network group group information
  • the control module is configured to control the charging of the group-level session on the virtual network group
  • the sending module is configured to return the group-level charging session establishment response, and the group-level charging session establishment response carries the accounting fee control results.
  • the embodiment of the present application also provides a network device, including: one or more processors; memory, on which one or more programs are stored, and when one or more programs are executed by one or more processors, one or more Multiple processors implement any session management method in the embodiments of the present application.
  • An embodiment of the present application provides a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, any session management method in the embodiment of the present application is implemented.
  • FIG. 1 shows a schematic diagram of a network architecture of a fifth generation communication system provided by an embodiment of the present application.
  • FIG. 2 shows a schematic diagram of a communication mode of user equipment in a 5G VN group in a 5G communication scenario according to an embodiment of the present application.
  • Fig. 3 shows a schematic diagram of the architecture of group-level session management in the embodiment of the present application.
  • Fig. 4 shows a schematic diagram of a scene of group-level session management in the embodiment of the present application.
  • FIG. 5 shows a schematic diagram of internal components of an SMF entity in an embodiment of the present application.
  • Fig. 6 shows a flowchart of a session management method according to an embodiment of the present application.
  • Fig. 7 shows a flow chart of an SMF entity registering with a GMF entity in the embodiment of the present application.
  • FIG. 8 shows a flow chart of creating a group-level session policy control session by an SMF according to an embodiment of the present application.
  • FIG. 9 shows a schematic flowchart of the SMF initiating group session registration to the UDM according to the embodiment of the present application.
  • Fig. 10 shows a schematic flow diagram of the SMF initiating the establishment of a group-level charging session to the CHF according to the embodiment of the present application.
  • FIG. 11 shows a schematic flowchart of a session management method according to another embodiment of the present application.
  • Fig. 12 shows a schematic flowchart of a session management method according to another embodiment of the present application.
  • FIG. 13 shows a schematic flowchart of a session management method according to another embodiment of the present application.
  • FIG. 14 shows a schematic flowchart of a session management method according to another embodiment of the present application.
  • FIG. 15 shows a schematic structural diagram of a session management function SMF entity provided by an embodiment of the present invention.
  • FIG. 16 shows a schematic structural diagram of a group management function GMF entity provided by an embodiment of the present invention.
  • FIG. 17 shows a schematic structural diagram of a policy control function PCF entity provided by an embodiment of the present invention.
  • FIG. 18 shows a schematic structural diagram of a unified data management function UDM entity provided by an embodiment of the present invention.
  • Fig. 19 shows a schematic structural diagram of a charging function CHF entity provided by an embodiment of the present invention.
  • Fig. 20 is a structural diagram showing an exemplary hardware architecture of a computing device capable of implementing a session management method and a control plane entity according to an embodiment of the present invention.
  • FIG. 1 shows a schematic diagram of a network architecture of a fifth generation communication system provided by an embodiment of the present application.
  • the network architecture of the communication system includes but is not limited to: terminal equipment (User Equipment, UE) 101, radio access network (Radio Access Network, RAN) 102, access and mobility management function (Access and Mobility Management function (AMF) 103, authentication server function (Authentication Server Function, AUSF) 104, unified data management function (Unified Data Management, UDM) 105, session management function (Session Management function, SMF) 106, user plane function (User plane function UPF) 107, policy control function (Policy Control Functionality, PCF) 108, network function library function (NF Repository Function, NRF) 109, network slice selection function (Network Slice Selection Function, NSSF) 110, application function (Application Function , AF) 111, data network (Data Network, DN) 112.
  • UE101 can access the 5G network and obtain services through the wireless air interface.
  • the terminal exchanges information with the base station through the air interface, and exchanges information with the AMF103 of the core network through non-access stratum signaling (Non-Access Stratum, NAS).
  • Non-Access Stratum Non-Access Stratum
  • RAN102 is responsible for air interface resource scheduling and air interface connection management for UE101 accessing the network.
  • AMF103 is the core network control plane entity, mainly responsible for user mobility management, including registration and temporary identifier allocation; maintaining idle (IDLE) and connected (CONNECT) states and state transitions; switching in the CONNECT state; triggering in the user IDLE state Paging and other functions.
  • AUSF104 is a control plane entity of the core network, and is mainly responsible for authentication and authorization of users to ensure that users are legitimate users.
  • UDM105 is a control plane entity of the core network, belongs to the user server, and permanently stores user subscription data.
  • SMF106 is the core network control plane entity, mainly responsible for maintaining Protocol Data Unit (Protocol Data Unit, PDU) session (Session), responsible for allocating user Internet Protocol (Internet Protocol, IP) addresses, with Quality of Service (Quality of Service, QoS) Control and billing functions; when the user is in IDLE state, the downlink data packet is received, buffered and notified to AMF103 to page the user, etc.
  • PDU Protocol Data Unit
  • IP Internet Protocol
  • QoS Quality of Service
  • UPF107 is a functional entity of the user plane of the core network, responsible for forwarding user data packets, and also performing statistics on user data packets for functions such as charging.
  • PCF108 is a core network control plane entity, a functional entity responsible for access and mobility management policies, UE policies, session management policies and charging rules. This functional entity mainly generates access and mobility management policies, UE routing policies, QoS rules and charging rules for user data transfer based on service information, user subscription information, and operator configuration information.
  • NRF109 is a core network control plane entity responsible for dynamic registration of network function service capabilities and network function discovery.
  • NSSF110 is a core network control plane entity responsible for the selection of a target Network Slice Instance (NSI).
  • NSI Network Slice Instance
  • AF111 is an application entity responsible for providing specific services for users.
  • DN112 can be used to provide service data networks, such as data networks corresponding to services such as operator services, Internet access, and third-party services.
  • the communication system may further include: a binding support function (Binding Support Function, BSF) and a capability exposure function (Network Exposure Function, NEF).
  • BSF Binding Support Function
  • NEF Network Exposure Function
  • BSF can be used to query the PCF where the session is located according to session information, such as IP address and Media Access Control (MAC) address.
  • session information such as IP address and Media Access Control (MAC) address.
  • MAC Media Access Control
  • NEF is a core network control plane entity responsible for opening up mobile network capabilities.
  • the network architecture also includes the following reference points:
  • N1 reference point between UE and AMF
  • N2 Reference point between (R)AN and AMF;
  • N3 Reference point between (R)AN and UPF;
  • N4 Reference point between SMF and UPF
  • N5 Reference point between CF and AF
  • N6 Reference point between PSA UPF and data network
  • N7 Reference point between SMF and PCF
  • N8 Reference point between UDM and AMF
  • N10 Reference point between UDM and SMF
  • N11 Reference point between AMF and SMF
  • N12 Reference point between AMF and AUSF
  • N13 Reference point between UDM and AUSF;
  • N15 The reference point between PCF and AMF in the non-roaming scenario, or the reference point between the PCF and AMF in the visited location in the roaming scenario;
  • N22 Reference point between AMF and NSSF.
  • the AMF entity may be referred to as AMF
  • the AUSF entity may be referred to as AUSF
  • the UDM entity may be referred to as UDM
  • the SMF entity may be referred to as SMF
  • the UPF entity may be referred to as SMF
  • the PCF entity may be referred to as
  • NRF NRF
  • the NSSF entity may be abbreviated as NSSF
  • the AF entity may be abbreviated as AF.
  • Fig. 2 shows a schematic diagram of the communication mode of user equipment in the 5G VN group in the 5G communication scenario.
  • user equipments in a 5G VN group are exemplarily shown, such as UE1, UE2, UE3, UE4 and UE5.
  • UE1, UE2, UE3 and UE5 are associated with UPF1
  • UE4 is associated with UPF2
  • UE5 is associated with UPF3.
  • 5G VN group communication includes one-to-one communication and one-to-many communication.
  • One-to-one communication supports unicast traffic forwarding between two UEs within a 5G VN or between a UE and a device on a DN.
  • One-to-many communication supports forwarding of multicast traffic and broadcast traffic from one UE (or device on DN) to multiple or all UEs and devices on DN within the 5G VN.
  • 5G VN group communication can include the following three statistical methods: local switch method, N6-based communication method and N19-based communication method Way.
  • the data traffic is switched locally by a single UPF.
  • PDU session anchor PDU session anchor
  • the uplink (Up Line, UL)/downlink (Down Line, DL) service of 5G VN communication is forwarded to or from the DN.
  • N19 Based on N19, where UL/DL communication for 5G VN group communication is forwarded between PSA UPFs of different PDU sessions through N19.
  • N19 is based on shared user plane tunnels of PSA UPF sharing a single 5G VN group. Among them, N19 is the reference point between two PSA UPFs for 5G LAN type services.
  • the 5G VN group includes UPF internal interfaces, such as internal interface (VN Internal Interface) 1 and internal interface 2. It can be seen from Figure 2 that no matter which communication method is used, it is necessary to use the UPF internal interface and perform the following two-step detection and forwarding process to realize traffic forwarding in the 5G VN group.
  • the first step is to forward the data packet received from any 5G VN group member (communication method: through its PDU session, through N6 or through N19) to the associated UPF internal interface (that is, the destination interface setting of the data packet It is the internal interface of 5G VN).
  • the PDR installed on the UPF internal interface detects the packet and forwards it to the corresponding 5G VN group member (using the corresponding communication Way).
  • the communication between group user equipment relies on SMF to issue PDR and FAR instructions through the N4 interface.
  • SMF Session Management Function
  • the existing Ethernet Packet Filter can only support 16 MAC addresses, and the IP filter can only carry 4 IP addresses. Users frequently go online and offline or move, and the PDR/FAR of the session needs to be continuously modified, which increases the performance consumption of the system.
  • a solution is proposed in which the SMF establishes a group-level session and performs unified management.
  • Fig. 3 shows a schematic diagram of the architecture of group-level session management in the embodiment of the present application.
  • the same reference numerals in FIG. 3 and FIG. 1 have the same structure.
  • the architecture includes: UDM105 , SMF106 , UPF107 , PCF108 and charging function (Charging Function, CHF) 113 .
  • UDM105 can perform unified authorization for group sessions; PCF108 can perform unified policy control for groups, and CHF113 can perform unified charging for groups.
  • AMF and BSF can obtain the group information of the virtual network group by querying the group-level session, such as obtaining the location of SMF106 and UPF107, group session type, and multicast address etc.
  • FIG. 4 shows a schematic diagram of a scenario of group-level session management according to an embodiment of the present application.
  • FIG. 4 has the same structure as those in FIGS. 1 and 3 with the same reference numerals.
  • the functions related to the group service of each functional entity will be introduced below with reference to FIG. 4 .
  • AF111 has the ability to automatically activate LAN services, and can specify the UE's LAN capabilities, including N6 tunnel endpoints, and track the transmission path information of UE LAN sessions.
  • SMF106 is responsible for group-level N4 session management across multi-protocol data unit session anchor (Protocol Data Unit Session Anchor, PSA) UPF, and reports uplink (Up Line, UL) path change information to AF111.
  • PSA Protocol Data Unit Session Anchor
  • the PCF108 supports group delivery; supports the establishment of a group-level session, and notifies the SMF106 after the subscription is changed.
  • CHF113 add Vn Group group information in user bills for easy filtering; add group-level session billing function.
  • NEF114 through the NEF114 capability exposure interface, supports the AF111 side to intervene in LAN services.
  • GMF115 supports registration and discovery of group information.
  • group-level sessions can be extended through interfaces such as N7, N10, and N40, so that SMF can initiate group-level session registration to UDM105, and create group-level N7 policies and N40 accounting sessions. Subsequent UDM105, PCF108, and CHF113 It is also possible to perform unified control directly on group-level sessions.
  • FIG. 5 shows a schematic diagram of internal components of an SMF entity in an embodiment of the present application.
  • SMF106 may include: group management component 502, N19 path management component 501, session environment (session context, Sx) component 503, policy enforcement component 504, billing collection component 505, MAC forwarding table component 506, multiple UPF management component 507 , IP access control component 508 and Ethernet access control component 509 .
  • the group management component 502 is configured to maintain a group table and manage group-level sessions.
  • the N19 path management component 501 is configured to set up, modify, and delete UP group-level tunnel messages, and needs to integrate the Sx component module.
  • the Sx component 503 is configured to generate N4 session messages and assemble each rule (Rule).
  • the policy enforcement component 504 is configured to interface with the PCF and execute group-level session policies.
  • the charging collection component 505 is configured to collect group-level session charging information and report it to the CHF.
  • the MAC forwarding table component 506 is configured to generate a forwarding relationship table according to the MAC reported by the UPF.
  • the multi-UPF management component 507 is configured to maintain multi-UPF information management when the group crosses UPFs.
  • the IP access control component 508 is configured to control the access of the IP type session.
  • the Ethernet access control component 509 is configured to control access to an Ethernet session.
  • FIG. 6 shows a flowchart of a session management method according to an embodiment of the present application. As shown in FIG. 6, the session management method includes the following steps S610-S630.
  • S610 Send a group-level session management request to the control plane entity based on service requirements; wherein, the group-level session management request carries group information, and the group information is used to represent a virtual network group that requires group-level session management.
  • the SMF can send a group-level session management request to the control plane entity according to business requirements, and the group-level session management request carries group information, so that session management can be performed for the entire group, thereby satisfying
  • the business requirement of group-level session unified control reduces the difficulty of group control and reduces the messages of N7 and N40 interfaces, achieving the effect of improving group processing performance.
  • the session management method before step S610, further includes the following steps S11-S12.
  • S11 initiate a registration request to the group management function GMF entity, and the registration request carries supported data network names and supported virtual network group information;
  • S12 receives a registration response returned by the GMF entity in response to the registration request.
  • SMF supports static 5G LAN configuration, and when SMF is powered on or configuration is updated, it registers with the GMF entity.
  • Fig. 7 shows a flow chart of an SMF entity registering with a GMF entity in the embodiment of the present application. As shown in Fig. 7, the registration of the SMF entity with the GMF entity may include the following steps S701-S703.
  • the SMF entity initiates a registration request to the GMF entity.
  • the registration information (SmfInfo) carried in the registration request carries a data network name (Data Network Name, DNN) and supported virtual network group information.
  • the GMF entity stores the registration information.
  • the GMF entity returns a registration response to the SMF entity.
  • the GMF entity can select an SMF to access according to the DNN and group information. Remove the preferred SMF, select the second preferred SMF as the new preferred SMF, and record the new preferred SMF to keep this record.
  • control plane entity is a Policy Control Function (PCF) entity.
  • PCF Policy Control Function
  • the step of sending a group-level session management request to the control plane entity based on business requirements in step S610 may specifically include: sending a group-level session establishment request to the PCF entity, wherein the group-level session establishment request carries a group The group information is used for the session authorization of the virtual network group by the PCF entity.
  • Step S620 may specifically include: receiving a group-level session establishment success response returned by the PCF entity in response to the group-level session establishment request; wherein, the group-level session establishment success response carries group session policy information.
  • Step S630 may specifically include: performing corresponding session service management on the virtual network group according to the content carried in the response message, including: S21, executing group session policy information to create a group-level session of the virtual network group; S22, A policy enforcement response for enforcing group session policy information is returned to the PCF entity.
  • the SMF entity can initiate a request to the PCF to create a group-level session policy control, realizing a unified group policy.
  • the session management method further includes: receiving a group-level session establishment failure response returned by the PCF entity in response to the group-level session establishment request, where the group-level session establishment failure response carries a cause value; according to the cause value Determine why group-level session establishment failed.
  • the PCF entity if the PCF entity authorizes the group session to the SMF, if the authorization fails, the PCF entity returns a cause value to the SMF entity, so as to indicate the detailed reason for the authorization failure through the cause value.
  • the reason value may be a protocol status code, such as a Hypertext Transport Protocol (Hypertext Transport Protocol, HTTP) status code.
  • HTTP Hypertext Transport Protocol
  • the status code "4XX" starting with the number 4 can represent the client error status code, and the detailed reason is that the server cannot process the request;
  • the status code "5XX" starting with the number 5 can represent the server error status code, and the detailed reason is that the server failed to process the request.
  • the session management method further includes the following steps S31-S33.
  • the policy change notification carries the changed session policy information.
  • the policy change notification is a notification message sent by the PCF entity according to the instruction of the application entity.
  • the PCF if the virtual network group information changes.
  • the PCF receives an instruction from the AF, the PCF directly sends a policy change notification to the group-level session, so as to improve the control capability of the group-level session.
  • FIG. 8 shows a flow chart of creating a group-level session policy control session by an SMF according to an embodiment of the present application. As shown in FIG. 8 , creating a group-level session policy control session by the SMF may include the following steps S801-S806.
  • the SMF entity After there is a user equipment in the virtual network group associated with the SMF entity, the SMF entity initiates a group-level session establishment request to the PCF entity, carrying group information of the virtual network group.
  • the PCF entity authorizes the group session.
  • the PCF entity directly delivers a policy change notification (Sm Policy Notification) to the group-level session.
  • Sm Policy Notification a policy change notification
  • the changed session policy information is carried in the policy change notification.
  • the PCF entity receives an instruction from the AF entity, and the PCF entity directly sends a policy change notification to the group-level session.
  • the SMF entity executes the group-level session policy, such as notifying the UPF entity to modify the group-level session.
  • the SMF entity returns a policy enforcement response of the policy change notification.
  • control plane entity is a unified data management function (UDM) entity.
  • UDM unified data management function
  • step S610 may specifically include: sending a group session registration request to the UDM entity.
  • the group session registration request carries group information and group session information, so that when the access and mobility management function AMF entity has a new user equipment access in the virtual network group, the AMF entity obtains the virtual network group information through the UDM entity.
  • the group session information of the group, and the SMF entity of the discovery service carries group information and group session information, so that when the access and mobility management function AMF entity has a new user equipment access in the virtual network group, the AMF entity obtains the virtual network group information through the UDM entity.
  • Step S620 may specifically include: receiving a group session registration success response sent by the UDM entity in response to the group session registration request.
  • the AMF entity acts as a core network control plane entity and is responsible for user mobility management.
  • the SMF entity registers with the AMF entity for group session registration, so that the subsequent AMF has new users in the LAN access, and can obtain group-level session information through the UDM entity, discover the serving SMF, and improve the control capability of the group-level session.
  • FIG. 9 shows a schematic flowchart of the SMF initiating group session registration to the UDM according to the embodiment of the present application. As shown in FIG. 9, the process may include the following steps S901-S904.
  • the SMF entity initiates a group session registration request (Smf Registration) to the UDM entity.
  • the UDM entity stores group session information.
  • the UDM entity returns a session registration success response.
  • a new user in the LAN accesses the AMF, obtains group-level session information through UDM, and discovers a serving SMF.
  • the SMF initiates the group session registration to the UDM, which can improve the group processing performance and meet the business requirement of group-level session unified control.
  • control plane entity is a Charging Function CHF entity.
  • the above step S610 may specifically include: sending a group-level charging session establishment request to the CHF entity, where the group-level charging session establishment request carries group information, and the group-level charging session is used to request the CHF entity to Accounting control is performed for group-level sessions of virtual network groups.
  • the above step S620 may specifically include: receiving a group-level charging session establishment response returned by the CHF entity in response to the group-level charging session establishment request.
  • the SMF initiates a group-level charging session request to the CHF entity, enabling the CHF to charge for the entire group, and solving the problem of group-level session control over charging, reducing the difficulty of group control, and realizing Unified group billing control is implemented to meet the business requirements of group-level session unified control.
  • the session management method further includes the following steps S31-S33.
  • S31 Receive a policy modification notification request sent by a CHF entity, where the policy modification notification request carries group information and group-level quota modification policy information.
  • the SMF executes the group-level quota modification policy according to the policy modification notification request sent by the CHF entity, and returns the execution result of executing the group-level quota modification policy.
  • Group information only needs to be sent to SMF once, which reduces the difficulty of group control and improves group processing performance.
  • Fig. 10 shows a schematic flow diagram of the SMF initiating the establishment of a group-level charging session to the CHF according to the embodiment of the present application.
  • the process of the SMF initiating the establishment of a group-level charging session to the CHF may include the following steps S1001-S1006.
  • the SMF initiates a group-level charging session establishment request (Nchf_ConvergedCharging_Create Request) to the CHF.
  • the SMF initiates a group-level charging session establishment request to the CHF.
  • the CHF performs charging control of the group-level session.
  • the CHF returns a group-level session creation response (Nchf_ConvergedCharging_Create Response).
  • the SMF changes the execution quota.
  • the group-level charging control may include modifying a quota, or terminating a session.
  • the SMF returns a response message (Nchf_ConvergedCharging_Notify Response) for executing the quota change, and the response message carries the execution result of the quota change.
  • the CHF entity notifies the SMF entity to update the session flow which is the same or equivalent to that of the PCF, which will not be described again.
  • SMF can create and register group-level sessions, and provide group-level unified control capabilities.
  • Each control plane entity only needs to send group information to SMF once, so as to control the specified virtual network group associated with SMF.
  • Session management control enables group-level session control, such as multicast broadcast bandwidth limit, group-level diversion rules, billing, etc., to be carried out for the entire group, reducing the number of messages on N7 and N40 interfaces and improving group processing performance, and solves the control ability of group-level sessions, and optimizes the user management of operators and business-to-business groups.
  • Fig. 11 shows a schematic flowchart of a session management method according to another embodiment of the present application.
  • the session management method may include the following steps S1110-S1130.
  • the GMF entity can realize the registration of the SMF entity after power-on or configuration update, and realize the registration management of the virtual network group supported by the SMF.
  • the session management method further includes the following steps S1140-S1160:
  • S1140 Receive an SMF discovery request from an access and mobility management function AMF entity.
  • S1160 Return an SMF discovery response to the AMF entity, where the SMF discovery response carries SMF information of the preferred SMF.
  • the GMF entity when the subsequent AMF entity discovers the SMF entity from the GMF entity, the GMF entity only needs to determine the preferred SMF according to the data network name and the saved virtual network group information, so as to improve the group processing performance and meet the group-level requirements. Business requirements for unified session control.
  • Fig. 12 shows a schematic flowchart of a session management method according to another embodiment of the embodiment of the present application. As shown in FIG. 12, the session management method may include the following steps S1210-S1240.
  • S1220 Perform session authorization for the virtual network group according to the group information.
  • the PCF creates a group-level session policy control in response to the request of the SMF entity, and realizes a group unified session management policy.
  • the session management method may further include: S1250, sending a policy change notification to the SMF entity according to the instruction of the application entity; wherein, the policy change notification carries group information and the changed session policy Information, the policy change notification is used to notify the virtual network group to modify the group-level session of the virtual network group.
  • the PCF when the PCF sends a policy change notification to the SMF entity, it instructs the SMF to modify the session policy for the virtual network group through the carried group information, so that the session policy modification can be performed for the entire group, It reduces the sending of interface messages, improves group processing performance, solves the control capability of group-level sessions, and optimizes the user management of operators and business-to-business groups.
  • Fig. 13 shows a schematic flowchart of a session management method according to another embodiment of the present application. As shown in Fig. 13, the session management method may include the following steps S1310-S1330.
  • S1320 Store group information and group session information of the virtual network group.
  • the UDM performs group session registration for the virtual network group requested by the SMF in response to the group session registration request of the SMF entity, thereby realizing a group unified session management strategy.
  • the session management method further includes the following steps S1340-S1350:
  • UDM sends the group session information of the virtual network group to the AMF entity, so that when AMF accesses a new user in the LAN, the UDM discovers the service SMF and obtains the virtual network that the new user accesses.
  • Group session information for groups optimizing user management for carrier and business-to-business groups.
  • Fig. 14 shows a schematic flowchart of a session management method according to another embodiment of the embodiment of the present application. As shown in Fig. 14, the session management method is applied to the charging function CHF entity, and the session management method may include the following steps S1410-S1430.
  • the CHF responds to the group-level charging session establishment request of the SMF entity, and performs charging control of the group-level session on the virtual network group, and realizes the charging control of the group-level session for the entire group To improve group handling performance and control of group-level sessions.
  • the session management method further includes the following steps S1440-S1450:
  • FIG. 15 shows a schematic structural diagram of a session management function SMF entity provided by an embodiment of the present invention.
  • the session management function SMF entity may include the following modules.
  • the sending module 1510 is configured to send a group-level session management request to the control plane entity based on business requirements, wherein the group-level session management request carries group information, and the group information is used to represent the virtual network that needs to perform group-level session management group;
  • the receiving module 1520 is configured to receive a response message returned by the control plane entity in response to the group-level session management request;
  • the management module 1530 is configured to perform corresponding session service management on the virtual network group according to the content carried in the response message.
  • the sending module 1510 is further configured to initiate a registration request to the group management function GMF entity before sending the group-level session management request to the control plane entity based on business requirements, and the registration request carries the supported data network name and supported virtual network group information; the receiving module 1520 is also configured to receive the registration response returned by the GMF entity in response to the registration request.
  • control plane entity is a Policy Control Function (PCF) entity.
  • PCF Policy Control Function
  • the sending module 1510 is configured to send a group-level session establishment request to the PCF entity, wherein the group-level session establishment request carries group information for the PCF entity to perform session authorization of the virtual network group.
  • the receiving module 1520 is configured to receive a group-level session establishment success response returned by the PCF entity in response to the group-level session establishment request; wherein, the group-level session establishment success response carries group session policy information.
  • the management module 1530 is configured to execute the group session policy information to create a group-level session of the virtual network group; and the sending module 1510 is also configured to return a policy enforcement response for executing the group session policy information to the PCF entity.
  • the receiving module 1520 is further configured to, after receiving the response message returned by the control plane entity in response to the group-level session management request, receive the group-level session establishment failure response returned by the PCF entity in response to the group-level session establishment request, the group-level The cause value is carried in the session establishment failure response; the cause determination module is configured to determine the cause of the group-level session establishment failure according to the cause value.
  • the receiving module 1520 is further configured to receive a policy change notification sent by the PCF entity, the policy change notification carrying the changed The session policy information
  • the policy change notification is a notification message sent by the PCF entity according to the instruction of the application entity
  • the management module 1530 is also configured to execute the changed session policy information for modifying the group-level session of the virtual network group
  • control plane entity is a unified data management function UDM entity
  • the sending module 1510 is configured to send a group session registration request to the UDM entity, wherein the group session registration request carries group information and group session Information, so that when the AMF entity with access and mobility management functions has a new user equipment access in the virtual network group, the AMF entity obtains the group session information of the virtual network group through the UDM entity, and discovers the SMF entity serving
  • the receiving module 1520 configured to receive a group session registration success response sent by the UDM entity in response to the group session registration request.
  • control plane entity is a charging function CHF entity
  • the sending module 1510 is configured to send a group-level charging session establishment request to the CHF entity, the group-level charging session establishment request carries group information, and the group-level The charging session is used to request the CHF entity to perform charging control on the group-level session of the virtual network group
  • the receiving module 1520 is configured to receive the group-level charging session establishment response returned by the CHF entity in response to the group-level charging session establishment request.
  • the receiving module 1520 is further configured to receive the policy modification notification request sent by the CHF entity after receiving the group-level charging session establishment response returned by the CHF entity in response to the group-level charging session establishment request, the policy modification notification The request carries group information and group-level quota modification policy information; the management module 1530 is also configured to execute the group-level quota modification policy information for the group-level session of the virtual network group; the sending module 1510 is also configured to send the CHF entity Returns the policy modification notification response, which carries the execution result of group-level quota modification policy information.
  • the SMF can send a group-level session management request to the control plane entity according to business requirements, and the group-level session management request carries group information, so that session management can be performed for the entire group, In this way, the business requirement of group-level session unified control is met, the difficulty of group control is reduced, and the messages of N7 and N40 interfaces are reduced, so as to achieve the effect of improving group processing performance.
  • FIG. 16 shows a schematic structural diagram of a group management function GMF entity provided by an embodiment of the present invention.
  • the group management function GMF entity may include the following modules.
  • the receiving module 1610 is configured to receive a registration request from a session management function SMF entity, where the registration request carries supported data network names and supported virtual network group information.
  • the storage module 1620 is configured to store data network name and virtual network group information.
  • the sending module 1630 is configured to return a registration response to the SMF entity.
  • the receiving module 1610 is further configured to receive the SMF discovery request of the access and mobility management function AMF entity; the storage module 1620 is also configured to The name and saved virtual network group information determine the preferred SMF; the sending module 1630 is also configured to return an SMF discovery response to the AMF entity, and the SMF discovery response carries the SMF information of the preferred SMF.
  • the GMF entity of the group management function of the embodiment of the present application it can realize the registration of the SMF entity after power-on or configuration update, and realize the registration management of the virtual network group supported by the SMF.
  • FIG. 17 shows a schematic structural diagram of a policy control function PCF entity provided by an embodiment of the present invention.
  • the policy control function PCF entity may include the following modules.
  • the receiving module 1710 is configured to receive a group-level session establishment request from a session management function SMF entity, where the group-level session establishment request carries group information of a virtual network group.
  • the authorization module 1720 is configured to perform session authorization on the virtual network group according to the group information.
  • the sending module 1730 is configured to return a group-level session establishment success response if the authorization is successful; and, if the authorization fails, return a group-level session establishment failure response, and carry a failure reason value in the session establishment failure response.
  • the sending module 1730 is further configured to send a policy change notification to the SMF entity according to the instruction of the application entity; wherein, the policy change notification carries the group information and the changed session policy information, and the policy change notification is used to notify the virtual network group to modify the group-level session of the virtual network group.
  • a group-level session policy control can be established in response to the request of the SMF entity, and a unified group session management policy is realized.
  • FIG. 18 shows a schematic structural diagram of a unified data management function UDM entity provided by an embodiment of the present invention.
  • the unified data management function UDM entity may include the following modules.
  • the receiving module 1810 is configured to receive a group session registration request of a session management function SMF entity, wherein the group session registration request carries group information and group session information of the virtual network group.
  • the storage module 1820 is configured to store group information and group session information of the virtual network group.
  • the sending module 1830 is configured to return a group session registration success response to the SMF entity.
  • the receiving module 1810 is further configured to receive a group session information acquisition request of the access and mobility management function AMF entity; the sending module 1830, further configured to return a group session information acquisition response to the AMF entity, where the group session information acquisition response carries the group session information of the virtual network group.
  • the unified data management function UDM entity can respond to the group session registration request of the SMF entity and perform group session registration for the virtual network group requested by the SMF, so as to realize the group unified session management policy.
  • Fig. 19 shows a schematic structural diagram of a charging function CHF entity provided by an embodiment of the present invention.
  • the charging function CHF entity may include the following modules.
  • the receiving module 1910 is configured to receive the group-level charging session establishment request of the session management function SMF entity, and the group-level charging session establishment request carries the group information of the virtual network group;
  • the control module 1920 is configured to perform group-level session charging control on the virtual network group
  • the sending module 1930 is configured to return a group-level charging session establishment response, where the group-level charging session establishment response carries the charging control result.
  • the sending module 1930 is further configured to send a policy modification notification request to the AMF entity, where the policy modification notification request carries group information and group-level quota modification policy information
  • the receiving module 1910 is also configured to receive the policy modification notification response of the SMF entity, and obtain the execution result of the group-level quota modification policy information carried in the policy modification notification response.
  • the charging control of the group-level session in response to the group-level charging session establishment request of the SMF entity, the charging control of the group-level session is performed on the virtual network group, and the charging control of the group-level session is implemented for the entire group. Group progress, improving group processing performance and group-level session control.
  • the difficulty of group control can be reduced, group unified policy and billing control can be realized, and the service requirements of group-level session unified control can be satisfied, Utilizes the 5GC network to accelerate the application of 5G LAN services.
  • Fig. 20 is a structural diagram showing an exemplary hardware architecture of a computing device capable of implementing a session management method and a control plane entity according to an embodiment of the present invention.
  • a computing device 2000 includes an input device 2001 , an input interface 2002 , a central processing unit 2003 , a memory 2004 , an output interface 2005 , and an output device 2006 .
  • the input interface 2002, the central processing unit 2003, the memory 2004, and the output interface 2005 are connected to each other through the bus 2010, and the input device 2001 and the output device 2006 are respectively connected to the bus 2010 through the input interface 2002 and the output interface 2005, and then connected to the computing device 2000 other component connections.
  • the input device 2001 receives input information from the outside, and transmits the input information to the central processing unit 2003 through the input interface 2002; the central processing unit 2003 processes the input information based on computer-executable instructions stored in the memory 2004 to generate output information, temporarily or permanently store the output information in the memory 2004, and then transmit the output information to the output device 2006 through the output interface 2005; the output device 2006 outputs the output information to the outside of the computing device 2000 for the user to use.
  • the computing device shown in FIG. 20 may be implemented as a network device, and the network device may include: a memory configured to store a program; a processor configured to run the program stored in the memory to Execute the session management method described in the above embodiments.
  • the various embodiments of the present application can be implemented in hardware or special purpose circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code written in any combination of one or more programming languages or object code.
  • ISA instruction set architecture
  • Any logic flow block diagrams in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random-access memory (RAM), optical memory devices and systems (digital versatile disc DVD or CD), etc.
  • Computer readable media may include non-transitory storage media.
  • the data processor can be of any type suitable for the local technical environment, such as but not limited to general purpose computer, special purpose computer, microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (FGPA) and processors based on multi-core processor architectures.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FGPA programmable logic device

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Abstract

本申请提出一种会话管理方法、实体、网络设备和存储介质，该方法包括：基于业务需求向控制面实体发送组级会话管理请求，其中，组级会话管理请求中携带群组信息，群组信息用于表征需进行组级会话管理的虚拟网络群组；接收控制面实体响应组级会话管理请求返回的响应消息；根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理。

Description

会话管理方法、实体、网络设备和存储介质
相关申请的交叉引用
本公开要求于2021年7月5日提交的中国专利申请NO.202110754414.3的优先权，该中国专利申请的内容通过引用的方式整体合并于此。
技术领域
本申请涉及移动通信领域，特别涉及一种会话管理方法、实体、网络设备和存储介质。
背景技术
移动通信目前已经发展到第五代移动通信(5th-generation，5G)阶段。5G的网络架构和前几代相比，主要特点是基于服务化的架构。如何利用5G网络提供虚拟网络(Virtual Network，VN)群组(Group)功能，是相关阶段最具市场前景的技术之一。
在目前5G通讯场景下的相关技术中，都是基于PDU(Protocol Data Unit，协议数据单元)会话(Session)粒度进行策略控制、计费的。而对于群组用户，局域网(Local Area Network，LAN)服务需要针对整个群组，进行逐个终端的控制管理，群组控制的难度较高，群组处理性能较差。
发明内容
本申请实施例提供一种会话管理方法，应用于会话管理功能SMF实体，该会话管理方法包括：基于业务需求向控制面实体发送组级会话管理请求，其中，组级会话管理请求中携带群组信息，群组信息用于表征需进行组级会话管理的虚拟网络群组；接收控制面实体响应组级会话管理请求返回的响应消息；以及根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理。
本申请实施例还提供一种会话管理方法，应用于群组管理功能GMF实体，该会话管理方法包括：接收会话管理功能SMF实体的注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；存储数据网络名称和虚拟网络群组信息；向SMF实体返回注册响应。
本申请实施例还提供一种会话管理方法，应用于策略控制功能PCF实体，该会话管理方法包括：接收会话管理功能SMF实体的组级会话建立请求，组级会话建立请求中携带虚拟网络群组的群组信息；根据群组信息对虚拟网络群组进行会话授权；若授权成功，则返回组级会话建立成功响应；若授权失败，则返回组级会话建立失败响应，并在会话建立失败响应中携带失败原因值。
本申请实施例还提供一种会话管理方法，应用于统一数据管理功能UDM实体，该会话管理方法包括：接收会话管理功能SMF实体的群组会话注册请求，其中，群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息；存储虚拟网络群组的群组信息和群组会话信息；向SMF实体返回群组会话注册成功响应。
本申请实施例还提供一种会话管理方法，应用于计费功能CHF实体，该会话管理方法包括：接收会话管理功能SMF实体的组级计费会话建立请求，组级计费会话建立请求中携带虚拟网络群组的群组信息；对虚拟网络群组进行组级会话的计费控制；返回组级计费会话建立响应，组级计费会话建立响应中携带计费控制结果。
本申请实施例还提供一种会话管理功能SMF实体，包括：发送模块，被配置为基于业务需求向控制面实体发送组级会话管理请求，其中，该组级会话管理请求中携带群组信息，群组信息用于表征需进行组级会话管理的虚拟网络群组；接收模块，被配置为接收控制面实体响应组级会话管理请求返回的响应消息；管理模块，被配置为根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理。
本申请实施例还提供一种群组管理功能GMF实体，包括：接收模块，被配置为接收会话管理功能SMF实体的注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；存储模块，被配置为存储数据网络名称和虚拟网络群组信息；发送模块，被配置为向SMF实体返回注册响应。
本申请实施例还提供一种策略控制功能PCF实体，包括：接收模块，被配置为接收会话管理功能SMF实体的组级会话建立请求，组级会话建立请求中携带虚拟网络群组的群组信息；授权模块，被配置为根据群组信息对虚拟网络群组进行会话授权；发送模块，被配置为若授权成功，返回组级会话建立成功响应；发送模块，还用于若授权失败，返回组级会话建立失败响应，并在会话建立失败响应中携带失败原因值。
本申请实施例还提供一种统一数据管理功能UDM实体，包括：接收模块，被配置为接收会话管理功能SMF实体的群组会话注册请求，其中，群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息；存储模块，被配置为存储虚拟网络群组的群组信息和群组会话信息；发送模块，被配置为向SMF实体返回群组会话注册成功响应。
本申请实施例还提供一种计费功能CHF实体，包括：接收模块，被配置为接收会话管理功能SMF实体的组级计费会话建立请求，组级计费会话建立请求中携带虚拟网络群组的群组信息；控制模块，被配置为对虚拟网络群组进行组级会话的计费控制；发送模块，被配置为返回组级计费会话建立响应，组级计费会话建立响应中携带计费控制结果。
本申请实施例还提供一种网络设备，包括：一个或多个处理器；存储器，其上存储有一个或多个程序，当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现本申请实施例中的任意一种会话管理方法。
本申请实施例提供了一种存储介质，存储介质存储有计算机程序，计算机程序被处理器执行时实现本申请实施例中的任意一种会话管理方法。
关于本申请的以上实施例和其他方面以及其实现方式，在附图说明、具体实施方式和权利要求中提供更多说明。
附图说明
图1示出本申请实施例提供的第五代通信系统的网络架构示意图。
图2示出本申请实施例的5G通讯场景下5G VN组内的用户设备的通讯方式示意图。
图3示出本申请实施例的组级会话管理的架构示意图。
图4示出本申请实施例中组级会话管理的场景示意图。
图5示出本申请实施例的SMF实体内部组件示意图。
图6示出本申请一实施例的会话管理方法的流程图。
图7示出本申请实施例的一个SMF实体向GMF实体进行注册的流程图。
图8示出本申请实施例的一个SMF创建组级会话策略控制会话的流程图。
图9示出本申请实施例的SMF向UDM发起群组会话注册的流程示意图。
图10示出本申请实施例的SMF向CHF发起建立组级计费会话的流程示意图。
图11示出本申请另一实施例会话管理方法流程示意图。
图12示出本申请另一实施例会话管理方法流程示意图。
图13示出本申请另一实施例会话管理方法流程示意图。
图14示出本申请另一实施例会话管理方法流程示意图。
图15示出本发明一实施例提供的会话管理功能SMF实体的结构示意图。
图16示出本发明一实施例提供的群组管理功能GMF实体的结构示意图。
图17示出本发明一实施例提供的策略控制功能PCF实体的结构示意图。
图18示出本发明一实施例提供的统一数据管理功能UDM实体的结构示意图。
图19示出本发明一实施例提供的计费功能CHF实体的结构示意图。
图20是示出能够实现根据本发明实施例的会话管理方法和控制面实体的计算设备的示例性硬件架构的结构图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚明白，下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
图1示出本申请实施例提供的第五代通信系统的网络架构示意图。
如图1所示，该通信系统的网络架构包括但不限于：终端设备(User Equipment，UE)101、无线接入网(Radio Access Network，RAN)102、接入和移动管理功能(Access and Mobility Management function，AMF)103，鉴权服务器功能(Authentication Server Function，AUSF)104、统一数据管理功能(Unified Data Management，UDM)105、会话管理功能(Session Management function，SMF)106、用户面功能(User plane function UPF)107、策略控制功能(Policy Control Functionality，PCF)108、网络功能库功能(NF Repository Function，NRF)109、网络切片选择功能(Network Slice Selection Function，NSSF)110、应用功能(Application Function，AF)111、数据网络(Data Network，DN)112。
UE101可以通过无线空口接入5G网络并获得服务，终端通过空口和基站交互信息，通过非接入层信令(Non-Access Stratum，NAS)和核心网的AMF103交互信息。
RAN102，负责UE101接入网络的空口资源调度和以及空口的连接管理。
AMF103，是核心网控制面实体，主要负责用户移动性管理，包括注册和临时标识分配；维护空闲(IDLE)和连接(CONNECT)状态以及状态迁移；在CONNECT状态下的切换；用户 IDLE状态下触发寻呼等功能。
AUSF104，是核心网控制面实体，主要负责对用户的鉴权、授权，以保证用户是合法用户。
UDM105，是核心网控制面实体，归属用户服务器，永久存储用户签约数据。
SMF106，是核心网控制面实体，主要负责维护协议数据单元(Protocol Data Unit，PDU)会话(Session)，负责分配用户互联网协议(Internet Protocol，IP)地址，具有服务质量(Quality of Service，QoS)控制和计费功能；用户IDLE状态下收到下行数据包进行缓存并通知AMF103寻呼用户等功能。
UPF107，是核心网用户面功能实体，负责用户数据报文的转发，也对用户数据报文进行统计，用于计费等功能。
PCF108，是核心网控制面实体，负责接入和移动性管理策略、UE策略、会话管理策略和计费规则的功能实体。该功能实体主要根据业务信息和用户签约信息以及运营商的配置信息产生接入和移动性管理策略、UE路由选择策略、用户数据传递的Qos规则和计费规则等。
NRF109，是核心网控制面实体，负责网络功能的服务能力的动态注册以及网络功能发现。
NSSF110，是核心网控制面实体，负责目标网络切片实例(Network Slice Instance，NSI)的选择。
AF111，是应用实体，负责为用户提供特定的业务。
DN112，可以用于提供业务数据网络，例如运营商业务、互联网接入、第三方业务等业务对应的数据网络。
在一些实施例中，通信系统还可以包括：绑定支持功能(Binding Support Function，BSF)和能力开放功能(Network Exposure Function，NEF)。
BSF可以用于根据会话信息，如:IP地址、媒体接入层(Media Access Control，MAC)地址，查询会话所在的PCF，本专利扩展该NF协议功能，也可以用于查询会话所在的SMF或UPF信息。
NEF，是核心网控制面实体，用于负责移动网络能力的对外开放。
在图1中，该网络架构中还包括如下参考点：
N1：UE和AMF之间的参考点；
N2：(R)AN和AMF之间的参考点；
N3：(R)AN和UPF之间的参考点；
N4：SMF和UPF之间的参考点；
N5：CF和AF之间的参考点；
N6：PSA UPF和数据网络之间的参考点；
N7：SMF和PCF之间的参考点；
N8：UDM和AMF之间的参考点；
N10：UDM和SMF之间的参考点；
N11：AMF和SMF之间的参考点；
N12：AMF和AUSF之间的参考点；
N13：UDM和AUSF之间的参考点；
N15：非漫游场景下PCF和AMF之间的参考点,或者漫游场景下拜访地的PCF和AMF之间的参考点；
N22：AMF和NSSF之间的参考点。
在本文下述实施例的一些描述中，AMF实体可简称为AMF，AUSF实体可简称为AUSF，UDM实体可简称为UDM，SMF实体可简称为SMF，UPF实体可简称为SMF，PCF实体可简称为PCF，NRF实体可简称为NRF，NSSF实体可简称为NSSF，AF实体可简称为AF。
图2示出5G通讯场景下5G VN组内的用户设备的通讯方式示意图。
在图2中，示例性地示出了5G VN组中的用户设备，例如UE1、UE2、UE3、UE4和UE5。其中，UE1、UE2、UE3和UE5与UPF1相关联，UE4与UPF2相关联，UE5与UPF3相关联。
在一些实施例中，5G VN组通信包括一对一通信和一对多通信。一对一通信支持在5G VN内的两个UE之间或UE与DN上的设备之间的单播流量转发。一对多通信支持将多播流量和广播流量从一个UE(或DN上的设备)转发到5G VN内的多个或所有UE和DN上的设备。
如图2所示，根据转发路径，5G VN组通信可以包括如下三种统计方式：本地交换(local switch)方式、基于N6(N6-based)的通信方式和基于N19(N19-based)的通信方式。
其中，基于本地交换方式，如果当前UPF是同一5G VN组的不同PDU会话的共用PDU会话锚点(PDU session anchor，PSA)的UPF，则数据流量由单个UPF在本地交换。
基于N6，其中5G VN通信的上行链路(Up Line，UL)/下行链路(Down Line，DL)业务被转发到DN或从DN转发出去。
基于N19，其中用于5G VN组通信的UL/DL通信通过N19在不同PDU会话的PSA UPF之间转发。N19基于共享单个5G VN组的PSA UPF的共享用户面隧道。其中，N19是5G LAN型业务的两个PSA UPF之间的参考点。
在图2中，5G VN组中包括UPF内部接口，例如内部接口(VN Internal Interface)1和内部接口2。通过图2可知，无论哪种通信方式，都需要使用UPF内部接口并执行如下两步检测和转发过程，来实现5G VN组内的流量转发。
第一步，将从任一5G VN组成员(通讯方式为：通过其PDU会话、通过N6或通过N19)接收到的数据包，转发到关联的UPF内部接口(即该数据包的目标接口设置为5G VN内部接口)。
第二步，安装在UPF内部接口(即，该数据包的源接口设置为5G VN internal)上的PDR检测到该数据包，并将其转发到相应的5G VN组成员(使用相对应的通讯方式)。
如图2所示，目前5G通讯场景下，群组用户设备之间的通讯依赖SMF通过N4接口下发PDR和FAR指示，这样假如群组内用户过多时，对N4信令交互提出挑战，特别现有以太包过滤器(Ethernet Packet Filter)仅能支持16个MAC地址携带，而IP过滤器也只能携带4个IP地址。用户频繁上下线或者移动，还需要不停的修改会话的PDR/FAR，增加了系统的性能消耗。
在本申请实施例中，提出了一种SMF建立组级会话并进行统一管理的方案。
图3示出本申请实施例的组级会话管理的架构示意图。图3与图1中相同的标号具有相同的结构。如图3所示，该架构中包括：UDM105、SMF106、UPF107、PCF108和计费功能(Charging Function，CHF)113。
如图3所示，UDM105可以对群组会话进行统一授权；PCF108可以对群组进行统一的策略控制，而CHF113可以对群组进行统一计费。
在一些场景中，AMF和BSF(图中未示出)等可以通过查询组级会话，来获取虚拟网络群 组的群组信息，如获取SMF106、UPF107的位置，群组会话类型、组播地址等等。
图4示出本申请实施例的组级会话管理的场景示意图。图4与图1和图3中相同的标号具有相同的结构。下面结合图4，介绍各功能实体与群组服务相关的功能。
AF111，具备自动开通LAN业务的能力，可以指定UE的LAN能力，包括N6隧道端点，并跟踪UE LAN会话的传输路径信息。
SMF106，负责跨多协议数据单元会话锚点(Protocol Data Unit Session Anchor，PSA)UPF的组级N4会话管理，上报上行链路(Up Line，UL)路径变化信息给AF111。
PCF108，支持群组下发；支持建立组级会话，签约变更后通知SMF106。
CHF113，在用户话单里面新增Vn Group群组信息，便于过滤；新增组级的会话计费功能。
NEF114，通过NEF114能力开放接口，支持AF111侧介入LAN服务。
GMF115，支持群组信息的注册以及发现。
如图4所示，可以通过N7、N10、N40等接口扩展组级会话的定义，便于SMF向UDM105发起组级会话注册，并创建组级N7策略以及N40计费会话，后续UDM105、PCF108、CHF113也可以直接对组级会话进行统一的控制。
图5示出本申请实施例的SMF实体内部组件示意图。在图5中，SMF106可以包括：群组管理组件502、N19路径管理组件501、会话环境(session context，Sx)组件503、策略执行组件504、计费采集组件505、MAC转发表组件506、多UPF管理组件507、IP接入控制组件508和以太接入控制组件509。
其中，群组管理组件502，被配置为维护群组表、组级会话的管理。N19路径管理组件501，被配置为UP组级隧道建立、修改、删除消息，需要集成Sx组件模块。Sx组件503，被配置为N4会话消息生成，各个规则(Rule)组装。策略执行组件504，被配置为与PCF对接，组级会话策略执行。计费采集组件505，被配置为组级会话计费信息采集，上报CHF。MAC转发表组件506，被配置为根据UPF上报的MAC生成转发关系表。多UPF管理组件507，被配置为群组跨UPF时，维护多UPF信息管理。IP接入控制组件508，被配置为IP类型会话的接入控制。以太接入控制组件509，被配置为以太类型会话接入控制。
图6示出本申请实施例的一个会话管理方法的流程图。如图6所示，该会话管理方法包括如下步骤S610-S630。
S610，基于业务需求向控制面实体发送组级会话管理请求；其中，该组级会话管理请求中携带群组信息，该群组信息用于表征需进行组级会话管理的虚拟网络群组。
S620，接收控制面实体响应组级会话管理请求返回的响应消息。
S630，根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理。
根据本申请实施例的会话管理方法，SMF可以根据业务需求向控制面实体发送组级会话管理请求，该组级会话管理请求中携带群组信息，使得会话管理可以针对整个群组进行，从而满足组级会话统一控制的业务需求，降低了群组控制的难度，并减少了N7、N40接口的消息，达到提升群组处理性能的效果。
在一些实施例中，在步骤S610之前，该会话管理方法还包括如下步骤S11-S12。
S11，向群组管理功能GMF实体发起注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；S12，接收GMF实体响应注册请求返回的注册响应。
在该实施例中，SMF支持静态5G LAN配置，当SMF上电或配置更新后，向GMF实体进行 注册。
图7示出本申请实施例的一个SMF实体向GMF实体进行注册的流程图。如图7所示，SMF实体向GMF实体进行注册可以包括以下步骤S701-S703。
S701，SMF实体向GMF实体发起注册请求。
在该步骤中，注册请求中携带的注册信息(SmfInfo)携带数据网络名称(Data Network Name，DNN)和支持的虚拟网络群组信息。
S702，GMF实体存储该注册信息。
S703，GMF实体向SMF实体返回注册响应。
在本申请实施例中，SMF实体向GMF实体注册成功后，后续AMF实体向GMF实体发现SMF实体时，GMF实体可以根据DNN以及群组信息优选一个SMF接入，当SMF宕机异常时，GMF去除首选SMF，选择次选SMF作为新的优选SMF，并记录新的优选SMF，以保持此记录。
在一些实施例中，控制面实体为策略控制功能PCF实体。
在该实施例中，步骤S610中的基于业务需求向控制面实体发送组级会话管理请求的步骤，具体可以包括:向PCF实体发送组级会话建立请求，其中，组级会话建立请求中携带群组信息，以用于PCF实体进行虚拟网络群组的会话授权。
步骤S620具体可以包括：接收PCF实体响应组级会话建立请求返回的组级会话建立成功响应；其中，组级会话建立成功响应中携带有群组会话策略信息。
步骤S630具体可以包括：根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理，包括：S21，执行群组会话策略信息，以创建虚拟网络群组的组级会话；S22，向PCF实体返回执行群组会话策略信息的策略执行响应。
在该实施例中，可以实现SMF实体向PCF发起请求，以创建组级会话策略控制，实现了群组统一策略。
在一些实施例中，在步骤S620之后，该会话管理方法还包括：接收PCF实体响应组级会话建立请求返回的组级会话建立失败响应，组级会话建立失败响应中携带原因值；根据原因值确定组级会话建立失败的原因。
在该实施例中，若PCF实体对SMF进行群组会话的授权，若授权失败，PCF实体向SMF实体返回原因值，以通过原因值指示授权失败的详细原因。示例性地，原因值可以是协议状态码，例如超文本传输协议(Hypertext Transport Protocol，HTTP)状态码。例如数字4或数字5开头的状态码。数字4开头的状态码“4XX”可以代表客户端错误状态码，详细原因为服务器无法处理请求；数字5开头的状态码“5XX”可以代表服务器错误状态码，详细原因为服务器处理请求出错。
在一些实施例中，在步骤S21的创建虚拟网络群组的组级会话的步骤之后，该会话管理方法还包括如下步骤S31-S33。
S31，接收PCF实体发送的策略变化通知，策略变化通知中携带变更后的会话策略信息，策略变化通知是PCF实体根据应用实体的指示发送的通知消息。
S32，执行变更的会话策略信息，以用于修改虚拟网络群组的组级会话。
S33，向PCF实体返回执行变更的会话策略信息的策略执行响应。
在该实施例中，假如虚拟网络群组信息有变化。示例性地，比如PCF收到AF的指示，PCF直接向群组级会话下发策略变化通知，提高组级会话的控制能力。
图8示出本申请实施例的一个SMF创建组级会话策略控制会话的流程图。如图8所示，SMF创建组级会话策略控制会话可以包括以下步骤S801-S806。
S801，在SMF实体关联的虚拟网络群组内具有用户设备后，SMF实体向PCF实体发起组级会话建立请求，携带该虚拟网络群组的群组信息。
S802，PCF实体进行群组会话的授权。
S803a，假如授权成功，PCF实体返回群组会话的策略信息。
S803b，假如授权失败，PCF实体返回4xx或5xx原因值，携带详细原因值。
S804，PCF实体直接向群组级会话下发策略变化通知(Sm Policy Notification)。
在该步骤中，策略变化通知中携带变更后的会话策略信息。
在一些场景中，假如虚拟网络群组信息有变化，比如PCF实体收到AF实体的指示，PCF实体直接向群组级会话下发策略变化通知。
S805，SMF实体执行组级会话策略，如通知UPF实体修改组级会话。
S806，SMF实体返回策略变化通知的策略执行响应。
在本申请中，通过创建组级会话策略控制会话，提供组级统一控制能力，降低了群组控制的难度，实现了群组统一策略。
在一些实施例中，控制面实体为统一数据管理功能UDM实体。
在该实施例中，步骤S610具体可以包括：向UDM实体发送群组会话注册请求。
其中，群组会话注册请求中携带群组信息和群组会话信息，以便接入和移动管理功能AMF实体在虚拟网络群组内有新用户设备接入时，AMF实体通过UDM实体获取虚拟网络群组的群组会话信息，并发现服务的SMF实体。
步骤S620具体可以包括：接收UDM实体响应群组会话注册请求发送的群组会话注册成功响应。
在该实施例中，AMF实体作为核心网控制面实体，负责用户移动性管理。SMF实体向AMF实体注册群组会话注册，使得后续AMF有LAN内新用户接入，可以通过UDM实体获取组级会话信息，发现服务的SMF，提高了组级会话的控制能力。
图9示出本申请实施例的SMF向UDM发起群组会话注册的流程示意图。如图9所示，该流程可以包括如下步骤S901-S904。
S901，SMF实体向UDM实体发起群组会话注册请求(Smf Registration)。
S902，UDM实体存储群组会话信息。
S903，UDM实体返回会话注册成功响应。
S904，AMF有LAN内新用户接入，通过UDM获取组级会话信息，发现服务的SMF。
在本申请实施例中，SMF向UDM发起群组会话注册，可以提升群组处理性能，满足组级会话统一控制的业务需求。
在一些实施例中，控制面实体为计费功能CHF实体。
在该实施例中，上述步骤S610，具体可以包括：向CHF实体发送组级计费会话建立请求，组级计费会话建立请求中携带群组信息，组级计费会话用于请求CHF实体对虚拟网络群组的组级会话进行计费控制。
上述步骤S620，具体可以包括：接收CHF实体响应组级计费会话建立请求返回的组级计费会话建立响应。
在该实施例中，SMF向CHF实体发起组级计费会话请求，实现CHF针对整个群组进行计费，并且解决了组级会话对计费的控制能力，降低了群组控制的难度，实现了群组统一计费控制，满足组级会话统一控制的业务需求。
在一些实施例中，在步骤S620之后，该会话管理方法还包括如下步骤S31-S33。
S31，接收CHF实体发送的策略修改通知请求，策略修改通知请求中携带群组信息和组级配额修改策略信息。
S32，对虚拟网络群组的组级会话执行组级配额修改策略信息。
S33，向CHF实体返回策略修改通知响应，策略修改通知响应中携带组级配额修改策略信息的执行结果。
在该实施例中，实现SMF根据CHF实体发送的策略修改通知请求，执行组级配额修改策略，并返回执行组级配额修改策略的执行结果。群组信息只需一次下发给SMF，降低了群组控制的难度，提升群组处理性能。
图10示出本申请实施例的SMF向CHF发起建立组级计费会话的流程示意图。如图10所示，该SMF向CHF发起建立组级计费会话的流程可以包括如下步骤S1001-S1006。
S1001，SMF向CHF发起组级计费会话建立请求(Nchf_ConvergedCharging_Create Request)。
该步骤中，虚拟网络群组的群内有用户后，SMF向CHF发起组级计费会话建立请求。
S1002，CHF进行组级会话的计费控制。
S1003，CHF返回组级会话创建响应(Nchf_ConvergedCharging_Create Response)。
S1004，假如CHF决策需要修改组级的配额，则向SMF发起策略修改通知请求(Nchf_ConvergedCharging_Notify Request)。
S1005，SMF进行执行配额变更。
示例性地，该组级计费控制可以包括修改配额，或者终止会话。
S1006，SMF返回执行配额变更的响应消息(Nchf_ConvergedCharging_Notify Response)，在该响应消息中携带配额变更的执行结果。
在本申请实施例中，CHF实体通知SMF实体更新会话流程与PCF相同或等同，再次不再赘述。
根据该会话管理方法，SMF可以创建并注册组级会话，提供组级统一控制能力，各控制控制面实体只需将群组信息一次下发给SMF，以对SMF关联的指定虚拟网络群组进行会话管理控制，使得组级会话控制，例如组播广播的带宽限制、组级的导流规则、计费等等都可以针对整个群组进行，减少了N7、N40接口的消息，提升群组处理性能，并且解决了组级会话的控制能力，优化了运营商和企业对企业群组的用户管理。
图11示出本申请实施例另一实施例的会话管理方法流程示意图。如图11所示，该会话管理方法可以包括如下步骤S1110-S1130。
S1110，接收会话管理功能SMF实体的注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息。
S1120，存储数据网络名称和虚拟网络群组信息。
S1130，向SMF实体返回注册响应。
根据本申请实施例的会话管理方法，GMF实体可以实现对上电或配置更新后的SMF实体 进行注册，实现对SMF支持的虚拟网络群组的注册管理。
在一些实施例中，在步骤S1130之后，该会话管理方法还包括以下步骤S1140-S1160：
S1140，接收接入和移动管理功能AMF实体的SMF发现请求。
S1150，根据保存的数据网络名称和保存的虚拟网络群组信息，确定优选SMF。
S1160，向AMF实体返回SMF发现响应，SMF发现响应携带优选SMF的SMF信息。
根据本申请实施例的会话管理方法，后续AMF实体向GMF实体发现SMF实体时，GMF实体只需要根据数据网络名称和保存的虚拟网络群组信息确定优选SMF，提升群组处理性能，满足组级会话统一控制的业务需求。
图12示出本申请实施例另一实施例的会话管理方法流程示意图。如图12所示，该会话管理方法可以包括如下步骤S1210-S1240。
S1210，接收会话管理功能SMF实体的组级会话建立请求，组级会话建立请求中携带群组信息。
S1220，根据群组信息对虚拟网络群组进行会话授权。
S1230，若授权成功，返回组级会话建立成功响应。
S1240，若授权失败，返回组级会话建立失败响应，并在会话建立失败响应中携带失败原因值。
根据本申请实施例的会话管理方法，PCF响应于SMF实体的请求，创建组级会话策略控制，实现了群组统一会话管理策略。
在一些实施例中，在步骤S1230之后，该会话管理方法还可以包括：S1250，根据应用实体的指示向SMF实体发送策略变化通知；其中，策略变化通知中携带群组信息和变更后的会话策略信息，策略变化通知用于通知虚拟网络群组修改虚拟网络群组的组级会话。
在本申请实施例中，PCF向SMF实体发送策略变化通知时，通过携带的群组信息，指示SMF对该虚拟网络群组进行统一的会话策略修改，使得会话策略修改可以针对整个群组进行，减少了接口的消息的发送，提升群组处理性能，并且解决了组级会话的控制能力，优化了运营商和企业对企业群组的用户管理。
图13示出本申请实施例另一实施例的会话管理方法流程示意图。如图13所示，该会话管理方法可以包括如下步骤S1310-S1330。
S1310，接收会话管理功能SMF实体的群组会话注册请求，其中，群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息。
S1320，存储虚拟网络群组的群组信息和群组会话信息。
S1330，向SMF实体返回群组会话注册成功响应。
根据本申请实施例的会话管理方法，UDM响应于SMF实体的群组会话注册请求，对SMF请求的虚拟网络群组进行群组会话注册，实现了群组统一会话管理策略。
在一些实施例中，在步骤S1320之后，该会话管理方法还包括以下步骤S1340-S1350：
S1340，接收接入和移动管理功能AMF实体的群组会话信息获取请求。
S1350，向AMF实体返回群组会话信息获取响应，在群组会话信息获取响应中携带虚拟网络群组的群组会话信息。
在本申请实施例中，UDM向AMF实体发送虚拟网络群组的群组会话信息，以用于AMF在LAN内新用户接入时，通过UDM发现服务的SMF，得到新用户所接入虚拟网络群组的群组会话 信息，优化了运营商和企业对企业群组的用户管理。
图14示出本申请实施例另一实施例的会话管理方法流程示意图。如图14所示，该会话管理方法应用于计费功能CHF实体，该会话管理方法可以包括如下步骤S1410-S1430。
S1410，接收会话管理功能SMF实体的组级计费会话建立请求，组级计费会话建立请求中携带虚拟网络群组的群组信息。
S1420，对虚拟网络群组进行组级会话的计费控制。
S1430，返回组级计费会话建立响应，组级计费会话建立响应中携带计费控制结果。
根据本申请实施例的会话管理方法，CHF响应于SMF实体的组级计费会话建立请求，对虚拟网络群组进行组级会话的计费控制，实现组级会话的计费控制针对整个群组进行，提升群组处理性能和组级会话的控制能力。
在一些实施例中，在步骤S1420之后，该会话管理方法还包括以下步骤S1440-S1450：
S1440，向AMF实体发送策略修改通知请求，策略修改通知请求中携带群组信息和组级配额修改策略信息。
S1450，接收SMF实体的策略修改通知响应，得到策略修改通知响应携带的组级配额修改策略信息的执行结果。
在本申请实施例中，在需要对虚拟网络群组进行组级配额修改时，只需要将群组信息一次性下发给SMF实体，实现计费策略的修改可以针对整个群组进行，降低了群组计费控制的难度，实现了群组统一计费策略和计费控制，满足组级会话统一控制的计费业务需求。
下面结合附图，详细介绍根据本发明实施例的各控制面实体。
图15示出本发明一实施例提供的会话管理功能SMF实体的结构示意图。如图15所示，会话管理功能SMF实体可以包括如下模块。
发送模块1510，被配置为基于业务需求向控制面实体发送组级会话管理请求，其中，该组级会话管理请求中携带群组信息，群组信息用于表征需进行组级会话管理的虚拟网络群组；
接收模块1520，被配置为接收控制面实体响应组级会话管理请求返回的响应消息；
管理模块1530，被配置为根据响应消息中携带的内容，对虚拟网络群组进行相应的会话服务管理。
在一些实施例中，发送模块1510，还被配置为在基于业务需求向控制面实体发送组级会话管理请求之前，向群组管理功能GMF实体发起注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；接收模块1520，还被配置为接收GMF实体响应注册请求返回的注册响应。
在一些实施例中，控制面实体为策略控制功能PCF实体。
发送模块1510，被配置为向PCF实体发送组级会话建立请求，其中，组级会话建立请求中携带群组信息，以用于PCF实体进行虚拟网络群组的会话授权。
接收模块1520，被配置为接收PCF实体响应组级会话建立请求返回的组级会话建立成功响应；其中，组级会话建立成功响应中携带有群组会话策略信息。
管理模块1530，被配置为执行群组会话策略信息，以创建虚拟网络群组的组级会话；以及，发送模块1510还被配置为向PCF实体返回执行群组会话策略信息的策略执行响应。
在一些实施例中，接收模块1520，还用于在接收控制面实体响应组级会话管理请求返回的响应消息之后，接收PCF实体响应组级会话建立请求返回的组级会话建立失败响应，组级 会话建立失败响应中携带原因值；原因确定模块，被配置为根据原因值确定组级会话建立失败的原因。
在一些实施例中，在管理模块1530，被配置为创建虚拟网络群组的组级会话之后，接收模块1520，还被配置为接收PCF实体发送的策略变化通知，策略变化通知中携带变更后的会话策略信息，策略变化通知是PCF实体根据应用实体的指示发送的通知消息；管理模块1530，还被配置为执行变更的会话策略信息，以用于修改虚拟网络群组的组级会话；发送模块1510，还被配置为向PCF实体返回执行变更的会话策略信息的策略执行响应。
在一些实施例中，控制面实体为统一数据管理功能UDM实体；发送模块1510，被配置为向UDM实体发送群组会话注册请求，其中，群组会话注册请求中携带群组信息和群组会话信息，以便接入和移动管理功能AMF实体在虚拟网络群组内有新用户设备接入时，AMF实体通过UDM实体获取虚拟网络群组的群组会话信息，并发现服务的SMF实体；接收模块1520，被配置为接收UDM实体响应群组会话注册请求发送的群组会话注册成功响应。
在一些实施例中，控制面实体为计费功能CHF实体；发送模块1510，被配置为向CHF实体发送组级计费会话建立请求，组级计费会话建立请求中携带群组信息，组级计费会话用于请求CHF实体对虚拟网络群组的组级会话进行计费控制；接收模块1520，被配置为接收CHF实体响应组级计费会话建立请求返回的组级计费会话建立响应。
在一些实施例中，接收模块1520，还被配置为在接收CHF实体响应组级计费会话建立请求返回的组级计费会话建立响应之后，接收CHF实体发送的策略修改通知请求，策略修改通知请求中携带群组信息和组级配额修改策略信息；管理模块1530，还被配置为对虚拟网络群组的组级会话执行组级配额修改策略信息；发送模块1510，还被配置为向CHF实体返回策略修改通知响应，策略修改通知响应中携带组级配额修改策略信息的执行结果。
根据本申请实施例的会话管理功能SMF实体，SMF可以根据业务需求向控制面实体发送组级会话管理请求，该组级会话管理请求中携带群组信息，使得会话管理可以针对整个群组进行，从而满足组级会话统一控制的业务需求，降低了群组控制的难度，并减少了N7、N40接口的消息，达到提升群组处理性能的效果。
图16示出本发明一实施例提供的群组管理功能GMF实体的结构示意图。如图16所示，群组管理功能GMF实体可以包括如下模块。
接收模块1610，被配置为接收会话管理功能SMF实体的注册请求，注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息。
存储模块1620，被配置为存储数据网络名称和虚拟网络群组信息。
发送模块1630，被配置为向SMF实体返回注册响应。
在一些实施例中，在向SMF实体返回注册响应之后，接收模块1610，还被配置为接收接入和移动管理功能AMF实体的SMF发现请求；存储模块1620，还被配置为根据保存的数据网络名称和保存的虚拟网络群组信息，确定优选SMF；发送模块1630，还被配置为向AMF实体返回SMF发现响应，SMF发现响应携带优选SMF的SMF信息。
根据本申请实施例的群组管理功能GMF实体，可以实现对上电或配置更新后的SMF实体进行注册，实现对SMF支持的虚拟网络群组的注册管理。
图17示出本发明一实施例提供的策略控制功能PCF实体的结构示意图。如图17所示，策略控制功能PCF实体可以包括如下模块。
接收模块1710，被配置为接收会话管理功能SMF实体的组级会话建立请求，组级会话建立请求中携带虚拟网络群组的群组信息。
授权模块1720，被配置为根据群组信息对虚拟网络群组进行会话授权。
发送模块1730，被配置为若授权成功，返回组级会话建立成功响应；以及，若授权失败，返回组级会话建立失败响应，并在会话建立失败响应中携带失败原因值。
在一些实施例中，在返回组级会话建立成功响应之后，发送模块1730，还被配置为根据应用实体的指示向SMF实体发送策略变化通知；其中，策略变化通知中携带群组信息和变更后的会话策略信息，策略变化通知用于通知虚拟网络群组修改虚拟网络群组的组级会话。
根据本申请实施例的策略控制功能PCF，可以响应于SMF实体的请求，创建组级会话策略控制，实现了群组统一会话管理策略。
图18示出本发明一实施例提供的统一数据管理功能UDM实体的结构示意图。如图18所示，统一数据管理功能UDM实体可以包括如下模块。
接收模块1810，被配置为接收会话管理功能SMF实体的群组会话注册请求，其中，群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息。
存储模块1820，被配置为存储虚拟网络群组的群组信息和群组会话信息。
发送模块1830，被配置为向SMF实体返回群组会话注册成功响应。
在一些实施例中，在存储虚拟网络群组的群组信息和群组会话信息之后，接收模块1810，还被配置为接收接入和移动管理功能AMF实体的群组会话信息获取请求；发送模块1830，还被配置为向AMF实体返回群组会话信息获取响应，在群组会话信息获取响应中携带虚拟网络群组的群组会话信息。
根据本申请实施例的统一数据管理功能UDM实体，可以响应于SMF实体的群组会话注册请求，对SMF请求的虚拟网络群组进行群组会话注册，实现了群组统一会话管理策略。
图19示出本发明一实施例提供的计费功能CHF实体的结构示意图。如图19所示，计费功能CHF实体可以包括如下模块。
接收模块1910，被配置为接收会话管理功能SMF实体的组级计费会话建立请求，组级计费会话建立请求中携带虚拟网络群组的群组信息；
控制模块1920，被配置为对虚拟网络群组进行组级会话的计费控制；
发送模块1930，被配置为返回组级计费会话建立响应，组级计费会话建立响应中携带计费控制结果。
在一些实施例中，在返回组级计费会话建立响应之后，发送模块1930，还被配置为向AMF实体发送策略修改通知请求，策略修改通知请求中携带群组信息和组级配额修改策略信息；接收模块1910，还被配置为接收SMF实体的策略修改通知响应，得到策略修改通知响应携带的组级配额修改策略信息的执行结果。
根据本申请实施例的计费功能CHF实体，响应于SMF实体的组级计费会话建立请求，对虚拟网络群组进行组级会话的计费控制，实现组级会话的计费控制针对整个群组进行，提升群组处理性能和组级会话的控制能力。
在实际应用场景中，可以对LAN服务统一策略控制，例如将LAN服务引流到同一个DN数据网络中或共享套餐；也可以对LAN服务统一计费控制；例如，针对运营商/企业简化有差异化的控制策略和计费需求，直接对群组进行统一计费。
根据本发明实施例的会话管理方法、实体、网络设备和存储介质，可以降低群组控制的难度，实现了群组统一策略以及计费控制等方面，满足组级会话统一控制的业务需求、充分利用了5GC网络、加快5G LAN服务的应用。
需要明确的是，本发明并不局限于上文实施例中所描述并在图中示出的特定配置和处理。为了描述的方便和简洁，这里省略了对已知方法的详细描述，并且上述描述的系统、模块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。
图20是示出能够实现根据本发明实施例的会话管理方法和控制面实体的计算设备的示例性硬件架构的结构图。
如图20所示，计算设备2000包括输入设备2001、输入接口2002、中央处理器2003、存储器2004、输出接口2005、以及输出设备2006。其中，输入接口2002、中央处理器2003、存储器2004、以及输出接口2005通过总线2010相互连接，输入设备2001和输出设备2006分别通过输入接口2002和输出接口2005与总线2010连接，进而与计算设备2000的其他组件连接。
具体地，输入设备2001接收来自外部的输入信息，并通过输入接口2002将输入信息传送到中央处理器2003；中央处理器2003基于存储器2004中存储的计算机可执行指令对输入信息进行处理以生成输出信息，将输出信息临时或者永久地存储在存储器2004中，然后通过输出接口2005将输出信息传送到输出设备2006；输出设备2006将输出信息输出到计算设备2000的外部供用户使用。
在一个实施例中，图20所示的计算设备可以被实现为一种网络设备，该网络设备可以包括：存储器，被配置为存储程序；处理器，被配置为运行存储器中存储的程序，以执行上述实施例描述的会话管理方法。
以上，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(ROM)、随机访问存储器(RAM)、光存储器装置和系统(数码多功能光碟DVD或CD光盘)等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、可编程逻辑器件(FGPA)以及基于多核处理器架构的处理器。
通过示范性和非限制性的示例，上文已提供了对本申请的示范实施例的详细描述。但结合附图和权利要求来考虑，对以上实施例的多种修改和调整对本领域技术人员来说是显而易 见的，但不偏离本发明的范围。因此，本发明的恰当范围将根据权利要求确定。

Claims (24)

  1. 一种会话管理方法，应用于会话管理功能SMF实体，所述方法包括：
    基于业务需求向控制面实体发送组级会话管理请求，其中，所述组级会话管理请求中携带群组信息，所述群组信息用于表征需进行组级会话管理的虚拟网络群组；
    接收所述控制面实体响应所述组级会话管理请求返回的响应消息；以及
    根据所述响应消息中携带的内容，对所述虚拟网络群组进行相应的会话服务管理。
  2. 根据权利要求1所述的方法，其中，在所述基于业务需求向控制面实体发送组级会话管理请求之前，所述方法还包括：
    向群组管理功能GMF实体发起注册请求，所述注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；以及
    接收所述GMF实体响应所述注册请求返回的注册响应。
  3. 根据权利要求1所述的方法，其中，
    所述控制面实体为策略控制功能PCF实体；
    所述基于业务需求向控制面实体发送组级会话管理请求，包括:向PCF实体发送组级会话建立请求，其中，所述组级会话建立请求中携带所述群组信息，以用于所述PCF实体进行所述虚拟网络群组的会话授权；
    所述接收所述控制面实体响应所述组级会话管理请求返回的响应消息包括：接收所述PCF实体响应所述组级会话建立请求返回的组级会话建立成功响应；其中，所述组级会话建立成功响应中携带有群组会话策略信息；并且
    所述根据所述响应消息中携带的内容，对所述虚拟网络群组进行相应的会话服务管理，包括：
    执行所述群组会话策略信息，以创建所述虚拟网络群组的组级会话；以及
    向PCF实体返回执行所述群组会话策略信息的策略执行响应。
  4. 根据权利要求3所述的方法，其中，在接收所述控制面实体响应所述组级会话管理请求返回的响应消息之后，所述方法还包括：
    接收所述PCF实体响应所述组级会话建立请求返回的组级会话建立失败响应，所述组级会话建立失败响应中携带原因值；以及
    根据所述原因值确定组级会话建立失败的原因。
  5. 根据权利要求3所述的方法，其中，在创建所述虚拟网络群组的组级会话之后，所述方法还包括：
    接收所述PCF实体发送的策略变化通知，所述策略变化通知中携带变更后的会话策略信息，所述策略变化通知是所述PCF实体根据应用实体的指示发送的通知消息；
    执行所述变更的会话策略信息，以用于修改所述虚拟网络群组的组级会话；以及
    向PCF实体返回执行所述变更的会话策略信息的策略执行响应。
  6. 根据权利要求1所述的方法，其中，所述控制面实体为统一数据管理功能UDM实体；
    所述基于业务需求向控制面实体发送组级会话管理请求包括：
    向UDM实体发送群组会话注册请求，其中，所述群组会话注册请求中携带所述群组信息和群组会话信息，以便接入和移动管理功能AMF实体在所述虚拟网络群组内有新用户设备接入时，所述AMF实体通过UDM实体获取所述虚拟网络群组的群组会话信息，并发现服务的SMF实体；并且
    所述接收所述控制面实体响应所述组级会话管理请求返回的响应消息，包括：
    接收所述UDM实体响应所述群组会话注册请求发送的群组会话注册成功响应。
  7. 根据权利要求1所述的方法，其中，所述控制面实体为计费功能CHF实体；
    所述基于业务需求向控制面实体发送组级会话管理请求包括：
    向所述CHF实体发送组级计费会话建立请求，所述组级计费会话建立请求中携带所述群组信息，所述组级计费会话用于请求所述CHF实体对所述虚拟网络群组的组级会话进行计费控制；并且
    所述接收所述控制面实体响应所述组级会话管理请求返回的响应消息，包括：
    接收CHF实体响应所述组级计费会话建立请求返回的组级计费会话建立响应。
  8. 根据权利要求7所述的方法，其中，在所述接收CHF实体响应所述组级计费会话建立请求返回的组级计费会话建立响应之后，所述方法还包括：
    接收所述CHF实体发送的策略修改通知请求，所述策略修改通知请求中携带所述群组信息和组级配额修改策略信息；
    对所述虚拟网络群组的组级会话执行所述组级配额修改策略信息；以及
    向所述CHF实体返回策略修改通知响应，所述策略修改通知响应中携带所述组级配额修改策略信息的执行结果。
  9. 一种会话管理方法，应用于群组管理功能GMF实体，所述方法包括：
    接收会话管理功能SMF实体的注册请求，所述注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；
    存储所述数据网络名称和所述虚拟网络群组信息；以及
    向所述SMF实体返回注册响应。
  10. 根据权利要求9所述的方法，其中，在向所述SMF实体返回注册响应之后，所述方法还包括：
    接收接入和移动管理功能AMF实体的SMF发现请求；
    根据保存的数据网络名称和保存的虚拟网络群组信息，确定优选SMF；以及
    向所述AMF实体返回SMF发现响应，所述SMF发现响应携带所述优选SMF的SMF信息。
  11. 一种会话管理方法，应用于策略控制功能PCF实体，所述方法包括：
    接收会话管理功能SMF实体的组级会话建立请求，所述组级会话建立请求中携带虚拟网络群组的群组信息；以及
    根据所述群组信息对所述虚拟网络群组进行会话授权，其中，
    若授权成功，则返回组级会话建立成功响应；并且
    若授权失败，则返回组级会话建立失败响应，并在所述会话建立失败响应中携带失败原因值。
  12. 根据权利要求11所述的方法，其中，在返回组级会话建立成功响应之后，所述方法还包括：
    根据应用实体的指示向所述SMF实体发送策略变化通知；其中，
    所述策略变化通知中携带所述群组信息和变更后的会话策略信息，所述策略变化通知用于通知所述虚拟网络群组修改所述虚拟网络群组的组级会话。
  13. 一种会话管理方法，应用于统一数据管理功能UDM实体，所述方法包括：
    接收会话管理功能SMF实体的群组会话注册请求，其中所述群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息；
    存储所述虚拟网络群组的群组信息和所述群组会话信息；以及
    向所述SMF实体返回群组会话注册成功响应。
  14. 根据权利要求13所述的方法，其中，在所述存储所述虚拟网络群组的群组信息和所述群组会话信息之后，所述方法还包括：
    接收接入和移动管理功能AMF实体的群组会话信息获取请求；以及
    向所述AMF实体返回群组会话信息获取响应，在所述群组会话信息获取响应中携带所述虚拟网络群组的群组会话信息。
  15. 一种会话管理方法，应用于计费功能CHF实体，所述方法包括：
    接收会话管理功能SMF实体的组级计费会话建立请求，所述组级计费会话建立请求中携带虚拟网络群组的群组信息；
    对所述虚拟网络群组进行组级会话的计费控制；以及
    返回组级计费会话建立响应，所述组级计费会话建立响应中携带计费控制结果。
  16. 根据权利要求15所述的方法，其中，在返回组级计费会话建立响应之后，所述方法还包括：
    向AMF实体发送策略修改通知请求，所述策略修改通知请求中携带所述群组信息和组级配额修改策略信息；以及
    接收所述SMF实体的策略修改通知响应，得到所述策略修改通知响应携带的组级配额修改策略信息的执行结果。
  17. 一种会话管理功能SMF实体，包括：
    发送模块，被配置为基于业务需求向控制面实体发送组级会话管理请求，其中，所述组级会话管理请求中携带群组信息，所述群组信息用于表征需进行组级会话管理的虚拟网络群组；
    接收模块，被配置为接收所述控制面实体响应所述组级会话管理请求返回的响应消息；以及
    管理模块，被配置为根据所述响应消息中携带的内容，对所述虚拟网络群组进行相应的会话服务管理。
  18. 根据权利要求17所述的SMF实体，其中，
    所述发送模块还被配置为在所述基于业务需求向控制面实体发送组级会话管理请求之前， 向群组管理功能GMF实体发起注册请求，所述注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；并且
    所述接收模块还被配置为接收所述GMF实体响应所述注册请求返回的注册响应。
  19. 一种群组管理功能GMF实体，包括：
    接收模块，被配置为接收会话管理功能SMF实体的注册请求，所述注册请求中携带支持的数据网络名称和支持的虚拟网络群组信息；
    存储模块，被配置为存储所述数据网络名称和所述虚拟网络群组信息；以及
    发送模块，被配置为向所述SMF实体返回注册响应。
  20. 一种策略控制功能PCF实体，包括：
    接收模块，被配置为接收会话管理功能SMF实体的组级会话建立请求，所述组级会话建立请求中携带虚拟网络群组的群组信息；
    授权模块，被配置为根据所述群组信息对所述虚拟网络群组进行会话授权；以及
    发送模块，被配置为若授权成功，返回组级会话建立成功响应；若授权失败，返回组级会话建立失败响应，并在所述会话建立失败响应中携带失败原因值。
  21. 一种统一数据管理功能UDM实体，包括：
    接收模块，被配置为接收会话管理功能SMF实体的群组会话注册请求，所述群组会话注册请求中携带虚拟网络群组的群组信息和群组会话信息；
    存储模块，被配置为存储所述虚拟网络群组的群组信息和所述群组会话信息；以及
    发送模块，被配置为向所述SMF实体返回群组会话注册成功响应。
  22. 一种计费功能CHF实体，其中，所述实体包括：
    接收模块，被配置为接收会话管理功能SMF实体的组级计费会话建立请求，所述组级计费会话建立请求中携带虚拟网络群组的群组信息；
    控制模块，被配置为对所述虚拟网络群组进行组级会话的计费控制；以及
    发送模块，被配置为返回组级计费会话建立响应，所述组级计费会话建立响应中携带计费控制结果。
  23. 一种网络设备，包括：
    一个或多个处理器；
    存储器，其上存储有一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现权利要求1-8中任一项、权利要求9-10中任一项、权利要求11-12中任一项、权利要求13-14中任一项、或者权利要求15-16中任一项所述的方法。
  24. 一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1-8中任一项、权利要求9-10中任一项、权利要求11-12中任一项、权利要求13-14中任一项、或者权利要求15-16中任一项所述的方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024188196A1 (zh) * 2023-03-10 2024-09-19 中国移动通信有限公司研究院 信息传输方法、装置、相关设备及存储介质

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113207096B (zh) * 2021-07-05 2021-11-09 中兴通讯股份有限公司 会话管理方法、实体、网络设备和存储介质
CN113225697B (zh) * 2021-07-07 2021-11-09 中兴通讯股份有限公司 群组用户通信方法、装置、网络设备和存储介质
CN113766443B (zh) * 2021-10-20 2024-01-26 广东亿迅科技有限公司 一种处理海量5g消息会话管理的方法及系统
CN116156596A (zh) * 2021-11-22 2023-05-23 大唐移动通信设备有限公司 一种虚拟网络组数据的获取方法及装置
CN116321314B (zh) * 2021-12-21 2026-02-03 华为技术有限公司 一种切换方法、通信装置及通信系统
CN116669226A (zh) * 2022-02-21 2023-08-29 大唐移动通信设备有限公司 N19隧道建立方法、数据传输方法、设备及装置
CN117135574A (zh) * 2022-05-18 2023-11-28 中国移动通信有限公司研究院 广播消息的传送方法、装置、网络功能及存储介质
CN115397041B (zh) * 2022-08-30 2024-11-19 中国电信股份有限公司 变更虚拟网组后自动重建的方法、装置、设备及存储介质
CN117201457B (zh) * 2023-09-21 2024-08-13 之江实验室 一种地址分配管理方法、装置、存储介质及电子设备
CN119211353B (zh) * 2024-11-27 2025-03-18 杭州阿启视科技有限公司 一种设备重定向网关侧实现方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110830925A (zh) * 2018-08-14 2020-02-21 华为技术有限公司 一种用户群组的会话管理方法及装置
CN111917563A (zh) * 2019-05-07 2020-11-10 华为技术有限公司 一种路由规则的配置方法及通信装置
CN113207096A (zh) * 2021-07-05 2021-08-03 中兴通讯股份有限公司 会话管理方法、实体、网络设备和存储介质

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105009613A (zh) * 2013-05-15 2015-10-28 华为技术有限公司 群组计费方法、网关设备、计费设备以及通信系统
US10952176B2 (en) * 2017-03-17 2021-03-16 Samsung Electronics Co., Ltd. AF influenced PDU session management and subscription procedures
US11895033B2 (en) * 2017-11-17 2024-02-06 Huawei Technologies Co., Ltd. Method and apparatus for traffic routing and path optimization for peer-to-peer communications
CN110167190B (zh) * 2018-02-14 2021-02-12 华为技术有限公司 会话建立方法和设备
US10999787B2 (en) * 2018-02-17 2021-05-04 Huawei Technologies Co., Ltd. System and method for UE context and PDU session context management
US10506506B2 (en) * 2018-04-30 2019-12-10 Ofinno, Llc 5G policy control for restricted local operator services
CN112544055B (zh) * 2018-08-09 2023-11-07 苹果公司 用于5gc网络功能的性能测量
US11039018B2 (en) * 2018-09-13 2021-06-15 Ofinno, Llc Charging control with SMF and PCF
WO2020090764A1 (en) * 2018-11-02 2020-05-07 Nec Corporation SECURITY PROCEDURE FOR UE's IN 5GLAN GROUP COMMUNICATION
CN111200791B (zh) * 2018-11-19 2021-07-09 华为技术有限公司 群组通信方法、设备及系统
US11343653B2 (en) * 2019-01-15 2022-05-24 Ofinno, Llc Session establishment to join a group communication
US11832341B2 (en) * 2019-05-03 2023-11-28 Ofinno, Llc Group communication service request
CN111953576B (zh) * 2019-05-17 2021-07-09 华为技术有限公司 虚拟网络通信方法、设备及系统
CN110381451B (zh) * 2019-07-18 2022-02-11 中国联合网络通信集团有限公司 移动网络建立群组通信的方法、装置及系统
CN110365499A (zh) * 2019-07-18 2019-10-22 中国联合网络通信集团有限公司 一种建立群组通信的方法和系统、移动性管理功能实体
CN112448875B (zh) * 2019-08-28 2023-10-20 华为技术有限公司 通信处理方法、通信处理装置以及系统
CN114697885A (zh) * 2020-12-31 2022-07-01 华为技术有限公司 Lan群组计费的方法、及相关装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110830925A (zh) * 2018-08-14 2020-02-21 华为技术有限公司 一种用户群组的会话管理方法及装置
CN111917563A (zh) * 2019-05-07 2020-11-10 华为技术有限公司 一种路由规则的配置方法及通信装置
CN113207096A (zh) * 2021-07-05 2021-08-03 中兴通讯股份有限公司 会话管理方法、实体、网络设备和存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4346244A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024188196A1 (zh) * 2023-03-10 2024-09-19 中国移动通信有限公司研究院 信息传输方法、装置、相关设备及存储介质

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