WO2022206690A1 - 策略管理的方法和装置 - Google Patents

策略管理的方法和装置 Download PDF

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Publication number
WO2022206690A1
WO2022206690A1 PCT/CN2022/083428 CN2022083428W WO2022206690A1 WO 2022206690 A1 WO2022206690 A1 WO 2022206690A1 CN 2022083428 W CN2022083428 W CN 2022083428W WO 2022206690 A1 WO2022206690 A1 WO 2022206690A1
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WIPO (PCT)
Prior art keywords
application instance
policy
function entity
information
application
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PCT/CN2022/083428
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English (en)
French (fr)
Inventor
胡翔
夏渊
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华为技术有限公司
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Publication of WO2022206690A1 publication Critical patent/WO2022206690A1/zh

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Classifications

    • 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 for data wireline or wireless communications
    • 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
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • 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

Definitions

  • the present application relates to the field of communications, and more particularly, to a method and apparatus for policy management.
  • the present application provides a method and device for policy management, which can manage the charging and control policies of APPs in the core network, and improve the efficiency of policy control of APPs.
  • a first aspect provides a policy management method, comprising: a policy control function entity receiving a first request from a first session management function entity, where the first request is used to request policy information of a first application instance, the first request An application instance is used to provide application services to the terminal; the policy control function entity determines the policy information of the first application instance; the policy control function entity sends the first application instance to the first session management function entity policy information.
  • the policy control of the application instance is incorporated into the core network, and the policy control function entity in the core network can determine the policy information of the application instance, and implement the session management function and user plane function accessed by the application instance.
  • the service access, charging and control policies of the application instance are managed; when the application instance is added, modified or deleted, the operator has the ability to manage the dynamic policy of the application instance.
  • the first request includes one or more of the following: identification information of the first application instance, an identification of an application corresponding to the first application instance information, the domain name information of the first application instance, and the address information of the first application instance.
  • identification information of the application corresponding to the first application instance includes the name of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, the first application instance The policy and charging control rule of the application instance, and the policy control request trigger information of the first application instance.
  • the policy control function entity determines the policy information of the first application instance, including: the policy control function entity determines according to one or more of the following: Policy information of the first application instance: the online of the first application instance, the name of the data network where the first application instance provides application services, the slice type supported by the first application instance, the first application instance terminal device subscription list information, user plane functions accessed by the first application instance, location information of the first application instance, session and business continuity mode of the first application instance, and the first application instance subscription information, and the service usage of the first application instance.
  • the method further includes: the policy control function entity receives a second request from the second session management function entity, where the second request is used to request the first Policy information of a terminal; the policy control function entity determines the policy information of the first terminal according to the policy information of the first application instance; the policy control function entity sends the second session management function entity the Policy information of the first terminal.
  • the policy control function entity receives a second request from the second session management function entity, where the second request is used to request the first Policy information of a terminal; the policy control function entity determines the policy information of the first terminal according to the policy information of the first application instance; the policy control function entity sends the second session management function entity the Policy information of the first terminal.
  • the policy control function entity may also be based on the location information of the first terminal, the service usage of the first application instance accessed by the first terminal, the user plane function accessed by the first terminal, and the services supported by the first terminal.
  • Information such as the slice type, the session and service continuity mode of the first terminal, or the subscription policy of the first terminal, etc., determines the policy information of the first terminal.
  • the policy control function entity determines the policy information of the first terminal according to the policy information of the first application instance, including: the policy control function entity Determine the policy information of the first terminal according to one or more of the following: online or offline of the first application instance, location information of the first application instance, and service usage of the first application instance .
  • the method further includes: if the service usage of the first application instance is greater than a first threshold, the policy control function entity updates the first application Policy information for the instance.
  • the method further includes: the policy control function entity determines a terminal routing policy URSP rule of the first terminal, where the URSP rule includes a second address information of the application instance, the URSP rule is used to instruct the first terminal to access the second application instance; the policy control function entity sends the URSP rule to the access and mobility management network function entity.
  • determining the URSP rule by the policy control function entity includes: the policy control function entity determines the URSP rule according to the service usage of the first application instance, the The URSP rule is determined according to the offline of the first application instance, the failure of the first application instance, or the change of the location information of the first terminal.
  • the access and mobility management network function entity sends the URSP rule to the first terminal, and the first terminal can access the second application instance according to the address information of the second application instance in the URSP rule, thereby stopping accessing the first application instance . This can prevent the first terminal from continuing to access the first application instance when the first application instance goes offline or fails.
  • the method further includes: the policy control function entity receiving the service usage of the first application instance from the first session management function entity; and /Or, the policy control function entity receives, from the second session management function entity, a service usage amount of the first terminal accessing the first application instance.
  • a method for policy management including: a first session management function entity sends a first request to a policy control function entity, where the first request is used to request policy information of a first application instance, the first The application instance is used to provide application services to the terminal; the first session management function entity receives policy information of the first application instance from the policy control function entity; the first session management entity sends the first user plane function entity Policy information of the first application instance, where the policy information of the first application instance is used to manage service access of the first application instance.
  • the policy control function entity in the core network can determine the policy information of the application instance, and implement the service access, charging and control policies of the application instance through the session management function and user plane function accessed by the application instance Management; when an application instance is added, modified or deleted, the operator has the policy management capability for the application instance.
  • the first request includes one or more of the following: identification information of the first application instance, an identification of an application corresponding to the first application instance information, the domain name information of the first application instance, and the address information of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, the first application instance The policy and charging control of the application instance, and the policy control request trigger information of the first application instance.
  • the method further includes: receiving, by the first session management functional entity, the service usage of the first application instance from the first user plane functional entity;
  • the first session management function entity sends the service usage of the first application instance to the policy control function entity.
  • a method for policy management including: a second session management functional entity sends a second request to a policy control functional entity, where the second request is used to request policy information of the first terminal; the second The session management functional entity receives the policy information of the first terminal from the policy control functional entity; the second session management sends the policy information of the first terminal to the second user plane functional entity, and the first terminal's policy information is The policy information is used to manage the service access of the first terminal.
  • the policy control function entity in the core network can determine the policy information of the first terminal, and implement service access and charging for the first terminal through the session management function and user plane function accessed by the first terminal Manage with control strategies.
  • the method further includes: receiving, by the second session management functional entity from a second user plane functional entity, the first terminal accessing the first application instance
  • the second session management function entity sends the service usage of the first terminal accessing the first application instance to the policy control function entity.
  • a method for policy management comprising: a first user plane function entity receiving policy information of a first application instance from a first session management function entity, wherein the first user plane function entity is the The user plane function accessed by the first application instance, where the first application instance is used to provide application services to the terminal; the first user plane function entity, according to the policy information of the first application instance, provides the first application Instance business access is managed.
  • the first user plane functional entity manages the service access of the first application instance according to the policy information of the first application instance, including:
  • the first user plane functional entity collects statistics and reports on the service usage of the first application instance according to the policy information of the first application instance, and/or performs bandwidth management on the first application instance, and/or, providing guarantee for the service quality of the first application instance.
  • the method further includes: the first user plane functional entity sending the service usage of the first application instance to the first session management functional entity .
  • a method for policy management comprising: a second user plane function entity receiving policy information of a first terminal from a second session management function entity, wherein the second user plane function entity is the first terminal A user plane function accessed by a terminal; the second user plane function entity manages the service access of the first terminal according to the policy information of the first terminal.
  • the second user plane functional entity manages the service access of the first terminal according to the policy information of the first terminal, including:
  • the first user plane functional entity collects statistics and reports on the service usage of the first terminal according to the policy information of the first terminal, and/or performs bandwidth management on the first terminal.
  • the method further includes: the second user plane functional entity sending the service usage of the first terminal to the second session management functional entity.
  • a communication device comprising: a transceiver unit configured to receive a first request from a first session management function entity, where the first request is used to request policy information of a first application instance, the first request An application instance is used to provide application services to the terminal; a processing unit is used to determine policy information of the first application instance; the transceiver unit is further used to send the first application to the first session management function entity Policy information for the instance.
  • the first request includes one or more of the following: identification information of the first application instance, an identification of an application corresponding to the first application instance information, the domain name information of the first application instance, and the address information of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, the first application instance The policy and charging control rule of the application instance, and the policy control request trigger information of the first application instance.
  • the processing unit is specifically configured to determine the policy information of the first application instance according to one or more of the following: Online, the name of the data network where the first application instance provides application services, the slice type supported by the first application instance, the terminal device subscription list information of the first application instance, and the user accessed by the first application instance face function, location information of the first application instance, session and service continuity mode of the first application instance, subscription information of the first application instance, and service usage of the first application instance.
  • the transceiver unit is further configured to receive a second request from a second session management function entity, where the second request is used to request a policy of the first terminal information; the processing unit is further configured to determine the policy information of the first terminal according to the policy information of the first application instance; the processing unit is further configured to send the second session management function entity the Policy information of the first terminal.
  • the processing unit is specifically configured to, according to one or more of the following, determine the policy information of the first terminal: the online of the first application instance Or offline, location information of the first application instance, and service usage of the first application instance.
  • the processing unit is further configured to, if the service usage of the first application instance is greater than a first threshold, update the policy information of the first application instance .
  • the processing unit is further configured to determine a terminal routing policy URSP rule of the first terminal, where the URSP rule includes the address of the second application instance information, the URSP rule is used to instruct the first terminal to access the second application instance; the transceiver unit is further configured to send the URSP rule to an access and mobility management network function entity.
  • the processing unit is specifically configured to: according to the service usage of the first application instance, the offline of the first application instance, the first The failure of the application instance or the change of the location information of the first terminal determines the URSP rule.
  • the transceiver unit is further configured to receive, from the first session management function entity, the service usage of the first application instance; and/or, from the first session management function entity The second session management function entity receives the service usage of the first terminal accessing the first application instance.
  • a communication device comprising: a transceiver unit configured to send a first request to a policy control function entity, where the first request is used to request policy information of a first application instance, the first application instance for providing application services to the terminal; the transceiver unit is further configured to receive the policy information of the first application instance from the policy control function entity; the transceiver unit is further configured to send to the first user plane function entity Policy information of the first application instance, where the policy information of the first application instance is used to manage service access of the first application instance.
  • the first request includes one or more of the following: identification information of the first application instance, an identification of an application corresponding to the first application instance information, the domain name information of the first application instance, and the address information of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, the first application instance The policy and charging control of the application instance, and the policy control request trigger information of the first application instance.
  • the transceiver unit is further configured to: receive the service usage of the first application instance from the first user plane functional entity; The service usage of the first application instance is sent.
  • a communication device comprising: a transceiver unit configured to send a second request to a policy control function entity, where the second request is used to request policy information of the first terminal; the transceiver unit is further configured to , receiving the policy information of the first terminal from the policy control functional entity; the transceiver unit is further configured to send the policy information of the first terminal to the second user plane functional entity, the policy information of the first terminal The information is used to manage the service access of the first terminal.
  • the transceiver unit is further configured to: receive from the second user plane functional entity the service usage of the first terminal accessing the first application instance;
  • the policy control function entity sends the service usage of the first terminal accessing the first application instance.
  • a communication device comprising: a transceiver unit configured to receive policy information of a first application instance from a first session management function entity, wherein the first user plane function entity is the first application The user plane function of instance access, where the first application instance is used to provide application services to the terminal; the processing unit is configured to manage the service access of the first application instance according to the policy information of the first application instance .
  • the processing unit is specifically configured to, according to the policy information of the first application instance, count and report the service usage of the first application instance , and/or, performing bandwidth management on the first application instance, and/or providing assurance on the service quality of the first application instance.
  • the transceiver unit is further configured to send the service usage of the first application instance to the first session management function entity.
  • a communication device comprising: a transceiver unit, configured to receive policy information of a first terminal from a second session management function entity, wherein the second user plane function entity is the first terminal interface The incoming user plane function; a processing unit, configured to manage the service access of the first terminal according to the policy information of the first terminal.
  • the processing unit is specifically configured to, according to the policy information of the first terminal, count and report the service usage of the first terminal, and /or, performing bandwidth management on the first terminal.
  • the transceiver unit is further configured to send the service usage of the first terminal to the second session management function entity.
  • a communication device comprising: a processor and a transceiver, wherein the transceiver is configured to receive computer code or instructions and transmit them to the processor, and the processor executes the computer code or instructions, A method as in the first aspect or any possible implementation manner of the first aspect.
  • a twelfth aspect provides a communication device, comprising: a processor and a transceiver, the transceiver is configured to receive computer code or instructions and transmit them to the processor, and the processor executes the computer code or instructions, A method as in the second aspect or any possible implementation of the second aspect.
  • a thirteenth aspect provides a communication device, comprising: a processor and a transceiver, the transceiver is configured to receive computer code or instructions and transmit to the processor, the processor executes the computer code or instructions, A method as in the third aspect or any possible implementation manner of the third aspect.
  • a fourteenth aspect provides a communication device, comprising: a processor and a transceiver, the transceiver is configured to receive computer code or instructions and transmit them to the processor, and the processor executes the computer code or instructions, A method as in the fourth aspect or any possible implementation manner of the fourth aspect.
  • a fifteenth aspect provides a communication device, comprising: a processor and a transceiver, the transceiver is configured to receive computer code or instructions and transmit them to the processor, and the processor executes the computer code or instructions, A method as in the fifth aspect or any possible implementation manner of the fifth aspect.
  • a sixteenth aspect provides a communication system, comprising one or more of the following: a policy control function entity that executes the method of the first aspect, a first session management function entity that executes the method of the second aspect, and a third session management function entity that executes the method of the second aspect.
  • a seventeenth aspect provides a computer-readable storage medium, where a computer program is stored in the computer-readable medium; when the computer program runs on a computer, the computer causes the computer to execute the first to fifth aspects or the first aspect A method in any possible implementation manner of the fifth aspect.
  • a computer program product comprising computer program code which, when run on a computer, causes the first to fifth aspects or the first to fifth aspects The method of any possible implementation of the aspect is performed.
  • a chip including a processor, the processor is connected to a memory, the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that all The chip executes the method in any one possible implementation manner of the first aspect to the fifth aspect or the first aspect to the fifth aspect.
  • Figure 1 is a schematic diagram of the 5G core network system architecture.
  • FIG. 2 is a schematic diagram of the architecture of ULCL in 3GPP.
  • FIG. 3 is a schematic diagram of the architecture of BP in 3GPP.
  • FIG. 4 is a schematic flow interaction diagram of a method for policy management according to an embodiment of the present application.
  • FIG. 5 is a schematic flow interaction diagram of another policy management method according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • the embodiments of the present application may be applied to various communication systems, such as a wireless local area network (WLAN), a narrowband Internet of things (NB-IoT), a global system for mobile communications (global system for mobile communications, GSM), enhanced data rate for GSM evolution (enhanced data rate for gsmevolution, EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 system (code division multiple access) , CDMA2000), time division-synchronization code division multiple access system (time division-synchronization code division multiple access, TD-SCDMA), long term evolution system (long term evolution, LTE), satellite communication, fifth generation (5th generation, 5G) system Or new communication systems that will appear in the future.
  • WLAN wireless local area network
  • NB-IoT narrowband Internet of things
  • GSM global system for mobile communications
  • GSM global system for mobile communications
  • EDGE enhanced data rate for GSM evolution
  • WCDMA wideband code division multiple access
  • code division multiple access 2000 system code division multiple access
  • the terminal devices involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem.
  • the terminal can be a mobile station (mobile station, MS), a subscriber unit (subscriber unit), user equipment (user equipment, UE), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a personal digital assistant ( personal digital assistant, PDA) computer, tablet computer, wireless modem (modem), handheld device (handset), laptop computer (laptop computer), machine type communication (machine type communication, MTC) terminal, etc.
  • each network function (NF) instance network element can communicate through a service-oriented interface or a point-to-point interface to complete corresponding terminal registration, session establishment/update/deletion, location mobility switching,
  • NF network function
  • each decoupled network function is abstracted as a network service, which can be independently expanded, evolved, and deployed on demand.
  • the interaction between all NFs on the control plane adopts service-oriented interfaces.
  • the same service can be invoked by multiple NFs, which reduces the coupling degree of interface definitions between NFs, and finally realizes on-demand customization of functions of the entire network, flexibly supporting different business scenarios and need.
  • a schematic diagram of the 5G core network system architecture is shown.
  • access and mobility management function access and mobility management function
  • AMF access and mobility management function
  • SMF session management function
  • authentication service function authentication server function, AUSF
  • NSSF network slice selection function
  • NEF capability exposure network function
  • NEF network exposure function
  • NEF network exposure function
  • PCF policy control function
  • UDM unified data management
  • UDM unified data management
  • the application can choose the deployment location more flexibly, and the service traffic deployed at the edge will not be detoured because the location of the core network is too high.
  • the 3rd generation partnership project (3GPP) added a user plane ULCL/branching point that is not supported by the 4G electronic product code (EPC) when formulating the 5G core network user plane service. , BP) function.
  • 3GPP defines the architecture of the UPF uplink-classifier (ULCL) as follows: A new uplink classifier can be inserted between the radio access network (RAN) and the UPF of the PDU session anchor, just like its As the name defines, the role of ULCL is the upstream classifier of the data flow, that is, based on the identification of the upstream characteristics of the service flow, the data is distributed to the local data network (DN) or to the remote UPF session anchor. At the same time, the ULCL/BP also needs to perform aggregation processing on the downstream.
  • RAN radio access network
  • DN local data network
  • the ULCL/BP also needs to perform aggregation processing on the downstream.
  • BP is a split point insertion for the sixth version of the Internet protocol (internet protocol version 6, IPv6).
  • IPv6 Internet protocol version 6
  • the PDU session anchor can be the IP anchor of the IP address/prefix assigned to the UE.
  • IPv4-type PDU session or a non-multi-homed IPv6 PDU session when multiple PDU session anchors are used (due to ULCL being inserted), only one PDU session anchor is the IP anchor point.
  • IPv6 Multi-homed PDU session there can be multiple IP anchors.
  • the SMF can send routing rules to the UE for influencing the selection of source IP address prefixes in IPv6 routing broadcast messages.
  • the application (application, APP) is not connected to the core network.
  • the network exposure function (NEF) supports the capability development of the application function (AF), and the service access, charging and control policies of the APP are obtained through the external network capability open interface. Therefore, when an APP instance is added, modified or deleted, the operator does not have the policy management capability for the APP. In addition, operators and application service providers need to cooperate, so that the efficiency of providing services is low.
  • the application is an APP server that can provide services for the APP on the terminal side.
  • Each application may deploy multiple application instances to jointly provide services, that is, an application may include multiple instances corresponding to the application, and different application instances are used to provide different APP services.
  • a certain type of application service that provides Internet services.
  • the APP may be Taobao, for example, for providing Internet services for online shopping; or, the APP may be, for example, Tencent Video, for providing Internet services for watching videos online, and so on.
  • the APP instance in the embodiments of the present application refers to an instance of running an APP.
  • the corresponding APP instance refers to the instance running Taobao; or, when the APP is Tencent Video, the corresponding APP instance refers to the instance running Tencent Video.
  • the present application proposes a method for policy management, which can implement the management of service access, charging and control policies of the APP in the core network.
  • 5G core network as an example, but are not limited to the 5G core network, and are also applicable to future network architectures (eg, sixth-generation networks).
  • FIG. 4 a schematic flow interaction diagram of a policy management method according to an embodiment of the present application is shown.
  • the first session management function entity may send a first request to the policy control function entity through the extended policy control create (policy control create) service interface between the PCF and the SMF, using for requesting the policy information of the first application instance.
  • the first session management function entity is a session management function accessed by an application corresponding to the first application instance, and the first application instance is used to provide application services to the terminal.
  • the first request may include at least one or more of the following information: identification information of the first application instance, identification information of the application corresponding to the first application instance, domain name information (domain) of the first application instance, and information of the first application instance. address information, etc.
  • the identification information of the application corresponding to the first application instance includes an application name (application name).
  • the identification information of the application can be the identification that uniquely determines the application, similar to the terminal's subscription permanent identifier (SUPI), temporary mobile subscriber identity (IMSI) and other information. It should be understood that after the application accesses the core network (or after the application goes online), the first session management function entity or the user plane function entity may allocate address information to the instance of the application.
  • SUPI subscription permanent identifier
  • IMSI temporary mobile subscriber identity
  • the first session management function entity can obtain the session signed by the first application instance from the unified data management function entity (unified data management, UDM). and service continuity (session and service continuity) mode, data network name (DNN) providing application services, supported slice types, and information such as the home public land mobile network (HPLMN).
  • UDM unified data management function entity
  • service continuity session and service continuity
  • DNN data network name
  • HPLMN home public land mobile network
  • the first request may also carry information such as the session and service continuity mode of the first application instance, the DNN for which the first application instance provides application services, the location information of the first application, and the slice type supported by the first application instance. .
  • the policy information of the first application may include one or more of the following: policy information related to the session of the first application instance, policy and charging control (policy and charging control, PCC) rules of the first application instance, the first application instance
  • policy and charging control policy and charging control, PCC
  • PCC policy and charging control
  • the session-related policy information of the first application instance includes at least one of the following policies: a charging policy, a default charging policy, an event trigger policy, a reauthorization time limit policy, an Internet Protocol IP index policy, and an authorized session aggregation Maximum rate policy, authorized default QoS parameter policy, etc.
  • PCC rules are rules formulated by the policy control function entity according to user subscriptions and operator policies, and may include service usage statistics rules and bandwidth management rules.
  • the policy control request trigger information of the first application instance includes trigger condition information for starting the execution of the policy and trigger condition information for updating the policy.
  • the policy control function entity receives the first request sent by the first session management function entity.
  • the policy control function entity determines policy information of the first application instance according to the first request. It should be understood that determining the policy information of the first application instance may be understood as formulating the policy information of the first application instance for the first time, and may also be understood as updating the policy information of the first application instance.
  • the policy control function entity may determine the virtual service network to which the first application instance belongs based on at least one of the following information, and dynamically generate and distribute policy information of the first application instance: the subscription information of the first application instance, the first application instance The user plane function accessed by an application instance, the session and service continuity mode of the first application instance, the location information of the first application, the DNN that the first application instance provides application services, and the slice type supported by the first application instance.
  • the policy control function entity can determine the policy information of the first application instance according to one or more of the following information: the online of the first application instance, the name of the data network where the first application instance provides application services, the first application instance Supported slice types, terminal device subscription list information of the first application instance, user plane functions accessed by the first application instance, location information of the first application instance, session and service continuity mode of the first application instance, first application instance The subscription information of the instance, the service usage of the first application instance, and other information.
  • the policy control function entity may determine the location range of the terminal that can access the first application instance according to the location information of the first application instance, and only the terminals within the location range can access the first application instance.
  • the policy control function entity may determine the policy information of the first application instance according to the service usage of the first application instance. If the service usage of the first application instance is greater than the first threshold, the policy control function entity updates the policy information of the first application instance, so that the first user plane function entity accessed by the first application instance executes the corresponding bandwidth management policy to reduce Traffic accessing the first application instance.
  • the first user plane functional entity and the first session management functional entity cooperate to implement the bandwidth management policy for service access to the first application instance, and can report the service usage of the first application instance based on the threshold defined by the service usage statistics rule.
  • the first user plane functional entity may send the service usage of the first application instance to the first session management functional entity, and the first session management functional entity receives the service usage of the first application instance from the first user plane functional entity.
  • the first session management function entity sends the service usage amount of the first application instance to the policy control function entity.
  • the policy control function entity may determine the policy information of the first application instance according to the service usage amount of the first application instance received from the first session management function entity.
  • the policy control function entity sends the policy information of the first application instance to the first session management function entity, so that the first session management function entity cooperates to manage the service access of the first application instance. Specifically, the policy control function entity may send the policy information of the first application instance to the first session management function entity through the policy control creation response message.
  • the first session management function entity receives policy information of the first application instance from the policy control function entity.
  • the first session management functional entity sends the policy information of the first application instance to the first user plane functional entity, so that the first user plane executes the policy information.
  • the first user plane functional entity receives policy information of the first application instance from the first session management functional entity, and manages service access of the first application instance according to the policy information.
  • the first user plane functional entity may perform statistics and report on the service usage of the first application instance, and may also perform bandwidth management on the first application instance, and further The business service quality of the first application instance can be guaranteed.
  • the first user plane functional entity may also block access to the first application instance according to the policy information of the first application instance.
  • the second session management function entity may send a second request to the policy control function entity, where the second request is used to request policy information of the first terminal.
  • the second session management function entity is a session management function accessed by the first terminal, and the first terminal may be a terminal that needs to access the first application instance.
  • the session management function entity accessed by the application corresponding to the first application instance and the session management function entity accessed by the first terminal may be the same or different.
  • the first session management function entity and the second session management function entity may be the same, which is not limited in this embodiment of the present application.
  • the policy information of the first terminal may include one or more of the following: policy information related to the session of the first terminal, policy and charging control (policy and charging control, PCC) rules of the first terminal, policy control of the first terminal Request trigger information, etc.
  • policy information related to the session of the first terminal policy and charging control (policy and charging control, PCC) rules of the first terminal, policy control of the first terminal Request trigger information, etc.
  • PCC policy and charging control
  • the policy control function entity may receive the second request from the second session management function entity, and determine the policy information of the first terminal according to the policy information of the first application instance. For example, the policy control function entity may determine the service usage statistics rule for the first terminal to access the first application instance according to the service usage statistics rule of the first application instance.
  • the policy control function entity determines the policy information of the first terminal according to one or more of the following: the online or offline of the first application instance, the location information of the first application instance, the first application instance business usage, etc. It should be understood that determining the policy information of the first terminal may be understood as formulating the policy information of the first terminal for the first time, and may also be understood as updating the policy information of the first terminal.
  • the policy control function entity may update the policy information of the first terminal to enable the first terminal to access other online application instances, where the first application instance is the one that the first terminal needs to access Applications.
  • the policy control function entity may formulate or adjust the policy information of the first terminal according to the overall service access conditions of the first application instance and the service access conditions of the first application instance by different terminals; If the service usage is greater than the first threshold, the policy control function entity may update the policy information of the first terminal to reduce the service access of the first terminal to the first application instance.
  • the policy control function entity may update the policy information of the first terminal so that the first terminal The terminal stops accessing the first application instance.
  • the policy control function entity may also be based on the location information of the first terminal, the service usage of the first terminal accessing the first application instance, the user plane function accessed by the first terminal, the slice type supported by the first terminal, and the session of the first terminal. and information such as the service continuity mode or the subscription policy of the first terminal, to determine the policy information of the first terminal.
  • the policy control function entity can generate the information according to the session feature information of different terminals, the DNN of the application service provided by the first application instance, the slice type supported by the first application instance, and the list of terminal devices that need to access the first application instance. Differentiated business access, charging and control strategies.
  • the policy control function entity can target some or all terminals to the application instance.
  • the service access of the instance triggers the deletion of the original upstream classifier offloading rules, and other user plane functions can be reselected to issue new upstream offloading rules so that the terminal can access the new application instance, and the access services can also be returned to the user plane on the central side.
  • Function an application instance that directly accesses the Internet through the N6 interface.
  • the second session management function entity may receive the service usage of the first terminal accessing the first application instance from the second user plane function entity, and the second session management function entity may access the first terminal to access the service usage of the first application instance.
  • the service usage is sent to the policy control functional entity. Therefore, the policy control function entity may determine the policy information of the first terminal according to the service usage of the first terminal accessing the first application instance received from the second session management function entity.
  • the second user plane functional entity is a user plane functional entity accessed by the first terminal.
  • the user plane function entity accessed by the application corresponding to the first application instance and the user plane function entity accessed by the first terminal may be the same or different.
  • the first user plane functional entity and the second user plane functional entity may be the same, which is not limited in this embodiment of the present application.
  • the policy control function entity may send the determined policy information of the first terminal to the second session management function entity, and the second session management function entity receives the policy information of the first terminal and sends the policy information of the first terminal to the second session management function entity.
  • the user plane functional entity enables the second user plane functional entity to manage the service access of the first terminal.
  • the second user plane functional entity may receive the policy information of the first terminal from the second session management functional entity, and manage the service access of the first terminal according to the policy information of the first terminal.
  • the first user plane functional entity may perform statistics and reporting on the service usage of the first terminal, and may also perform bandwidth management on the first terminal.
  • the policy control function entity may actively initiate an update process for the terminal routing policy (UE route selection policy, URSP) to the terminal, and define the URSP rules for the terminal to access the first application instance.
  • the terminal and the first application instance may be in the same virtual service network.
  • the policy control function entity may determine a URSP rule for the first terminal to access the first application instance, the URSP rule may be used to instruct the first terminal to access or access the second application instance, and the URSP rule includes address information of the second application instance, The address information may be an IP address, and the first terminal that needs to access the second application instance may initiate the establishment of a corresponding PDU session.
  • the policy control function entity can determine the URSP rule according to information such as the service usage of the first application instance, the offline of the first application instance, the failure of the first application instance, or the change of the location information of the first terminal. .
  • the first terminal sends the URSP rule to enable the first terminal to access the second application instance (other application instance).
  • the terminal accessing the first application instance can be adjusted to other application instances for service access, and the number of terminal sessions accessing the first application instance can be reduced, thereby achieving the goal of dynamically adjusting the load of the first application instance.
  • the policy control function entity may formulate URSP rules to adjust the first terminal accessing the first application instance to the second application instance conduct business visits.
  • the policy control function entity may also actively adjust the number of access sessions and throughput of the first application instance by formulating URSP rules.
  • the policy control function entity may formulate URSP rules to enable the first terminal to access the second application instance and stop The first application instance is accessed, wherein the distance between the second application instance and the first terminal is within an accessible distance range.
  • the policy control function entity can send the URSP rule to the mobility management network function entity AMF through the policy control update notify message; the AMF sends the URSP rule to the AMF through the N1 interface with the first terminal.
  • a first terminal the first terminal accesses the second application instance according to the address information of the second application instance in the URSP rule, and stops accessing the first application instance. It should be understood that the first terminal treats the address information of the second application instance in the URSP rule as the IP address of the server accessed by the service of the second application instance.
  • the policy control function entity may define different policy information (for example, charging and quality of service policy information) for different application instances accessing the 5G network, such as application instances of internet access accessed through standard IP routing service access can be charged higher and service quality lower.
  • policy information for example, charging and quality of service policy information
  • the policy control function entity can trigger the insertion of an uplink classifier for the service access of the application instance by the terminal, and the service of the terminal accessing the first application instance does not need to be looped back to the center
  • the anchor user plane function on the side directly accesses the application instance connected on the edge side user plane function through the upstream offload rule.
  • the policy control of the application instance is incorporated into the core network, and the policy control function entity in the core network can determine the policy information of the application instance, and use the session management function and The user plane function realizes the management of the service access, charging and control policies of the application instance; when the application instance is added, modified or deleted, the operator has the ability to manage the dynamic policy of the application instance.
  • FIG. 5 a schematic flow interaction diagram of another policy management method according to an embodiment of the present application is shown.
  • the second session management function entity sends a second request to the policy control function entity, where the second request is used to request policy information of the first terminal.
  • the second session management function entity is a session management function accessed by the first terminal, and the first terminal may be a terminal that needs to access the first application instance.
  • the policy control function entity may receive the second request from the second session management function entity.
  • the policy control function entity determines policy information of the first terminal according to the policy information of the first application instance.
  • the policy control function entity sends the determined policy information of the first terminal to the second session management function entity.
  • the second session management function entity receives the policy information of the first terminal from the policy control function entity.
  • the second session management function entity sends the policy information of the first terminal to a second user plane function entity, where the second user plane function entity is a user plane function accessed by the first terminal.
  • the second user plane functional entity receives the policy information of the first terminal from the second session management functional entity, and manages the service access of the first terminal according to the policy information of the first terminal.
  • FIG. 6 a schematic block diagram of a communication apparatus 600 according to an embodiment of the present application is shown.
  • the apparatus may be applied to the policy control functional entity in the embodiment of the present application.
  • the communication device 600 includes:
  • a transceiver unit 610 configured to receive a first request from a first session management function entity, where the first request is used to request policy information of a first application instance, and the first application instance is used to provide application services to the terminal;
  • a processing unit 620 configured to determine policy information of the first application instance
  • the transceiver unit 610 is further configured to send the policy information of the first application instance to the first session management function entity.
  • the first request includes one or more of the following: identification information of the first application instance, identification information of an application corresponding to the first application instance, domain name information of the first application instance, and address information of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, policies and charging control rules of the first application instance, the The policy control request trigger information of the first application instance.
  • the processing unit 620 is specifically configured to determine the policy information of the first application instance according to one or more of the following: the first application instance goes online, the first application instance provides application services data network name, the slice type supported by the first application instance, the terminal device subscription list information of the first application instance, the user plane function accessed by the first application instance, and the location of the first application instance information, the session and service continuity mode of the first application instance, the subscription information of the first application instance, and the service usage of the first application instance.
  • the transceiver unit 610 is further configured to receive a second request from a second session management function entity, where the second request is used to request policy information of the first terminal;
  • the processing unit 620 is further configured to determine the policy information of the first terminal according to the policy information of the first application instance;
  • the processing unit 620 is further configured to send the policy information of the first terminal to the second session management function entity.
  • the processing unit 620 is specifically configured to determine the policy information of the first terminal according to one or more of the following: the online or offline of the first application instance, the Location information, and service usage of the first application instance.
  • the processing unit 620 is further configured to, if the service usage of the first application instance is greater than a first threshold, update the policy information of the first application instance.
  • the processing unit 620 is further configured to determine a terminal routing policy URSP rule of the first terminal, where the URSP rule includes address information of the second application instance, and the URSP rule is used to indicate the the first terminal accesses the second application instance;
  • the transceiver unit 610 is further configured to send the URSP rule to the access and mobility management network function entity.
  • the processing unit 620 is specifically configured to: according to the service usage of the first application instance, the offline of the first application instance, the failure of the first application instance, or the failure of the first terminal. Changes in location information determine the URSP rules.
  • the transceiver unit 610 is further configured to receive the service usage of the first application instance from the first session management function entity; and/or receive the service usage from the second session management function entity Service usage of the first terminal accessing the first application instance.
  • FIG. 7 a schematic block diagram of a communication apparatus 700 according to an embodiment of the present application is shown.
  • the apparatus may be applied to the first session management functional entity in the embodiment of the present application.
  • the communication device 700 includes:
  • a transceiver unit 710 configured to send a first request to a policy control function entity, where the first request is used to request policy information of a first application instance, and the first application instance is used to provide application services to the terminal;
  • the transceiver unit 710 is further configured to receive the policy information of the first application instance from the policy control function entity;
  • the transceiver unit 710 is further configured to send policy information of the first application instance to the first user plane functional entity, where the policy information of the first application instance is used to manage service access of the first application instance .
  • the first request includes one or more of the following: identification information of the first application instance, identification information of an application corresponding to the first application instance, domain name information of the first application instance, and address information of the first application instance.
  • the policy information of the first application instance includes one or more of the following: policy information related to the session of the first application instance, policy and charging control of the first application instance, the first A policy control request of an application instance triggers information.
  • the transceiver unit 710 is further configured to: receive the service usage of the first application instance from the first user plane functional entity; send the service usage of the first application instance to the policy control functional entity .
  • FIG. 8 a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application is shown.
  • the apparatus may be applied to the second session management functional entity in the embodiment of the present application.
  • the communication device 800 includes:
  • transceiver unit 810 configured to send a second request to the policy control function entity, where the second request is used to request policy information of the first terminal;
  • the transceiver unit 810 is further configured to receive policy information of the first terminal from the policy control function entity;
  • the transceiver unit 810 is further configured to send policy information of the first terminal to the second user plane functional entity, where the policy information of the first terminal is used to manage service access of the first terminal.
  • the transceiver unit 810 is further configured to: receive from the second user plane functional entity the service usage of the first terminal accessing the first application instance; send the first application instance to the policy control functional entity; Service usage of the terminal accessing the first application instance.
  • FIG. 9 a schematic block diagram of a communication apparatus 900 according to an embodiment of the present application is shown.
  • the apparatus may be applied to the first user plane functional entity in this embodiment of the present application.
  • the communication device 900 includes:
  • a transceiver unit 910 configured to receive policy information of a first application instance from a first session management function entity, where the first user plane function entity is a user plane function accessed by the first application instance, and the first user plane function entity is a user plane function accessed by the first application instance.
  • the application instance is used to provide application services to the terminal;
  • the processing unit 920 is configured to manage the service access of the first application instance according to the policy information of the first application instance.
  • the processing unit 920 is specifically configured to, according to the policy information of the first application instance, perform statistics and report on the service usage of the first application instance, and/or, to the first application instance
  • the instance performs bandwidth management, and/or provides guarantee for the service quality of the first application instance.
  • the transceiver unit 910 is further configured to send the service usage of the first application instance to the first session management function entity.
  • FIG. 10 a schematic block diagram of a communication apparatus 1000 according to an embodiment of the present application is shown.
  • the apparatus may be applied to the second user plane functional entity in this embodiment of the present application.
  • the communication device 1000 includes:
  • a transceiver unit 1010 configured to receive policy information of the first terminal from a second session management function entity, where the second user plane function entity is a user plane function accessed by the first terminal;
  • the processing unit 1020 is configured to manage the service access of the first terminal according to the policy information of the first terminal.
  • the processing unit 1020 is specifically configured to, according to the policy information of the first terminal, perform statistics and report on the service usage of the first terminal, and/or perform bandwidth on the first terminal manage.
  • the transceiver unit 1010 is further configured to send the service usage of the first terminal to the second session management function entity.
  • An embodiment of the present application provides a communication device 1100. As shown in FIG. 11, a schematic block diagram of a communication device 1100 according to an embodiment of the present application is shown.
  • the device 1100 includes: a processor 1110 and a transceiver 1120, the transceiver 1120 is configured to receive computer codes or instructions and transmit them to the processor 1110, and the processor 1110 executes the computer codes or instructions, as described herein. A method in any possible implementation manner in the application embodiments.
  • the above-mentioned processor 1110 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA), or other possible solutions. Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Programming logic devices, discrete gate or transistor logic devices, discrete hardware components The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the embodiments of the present application provide a communication system 1200, including the policy control function entity 1210 in the wireless communication method provided by the embodiments of the present application, and other communication devices and first session management function entities that communicate with the policy control function entity 1220 and other communication devices in communication with the first session management functional entity, a first user plane functional entity 1230 and other communication devices in communication with the first user plane functional entity.
  • a schematic block diagram of a communication system 1200 according to an embodiment of the present application is shown.
  • the embodiment of the present application further provides another communication system, including the policy control function entity, the first session management function entity, the first user plane function entity, and the second session management function in the wireless communication method provided by the embodiment of the present application entity and a second user plane functional entity.
  • the embodiments of the present application further provide a computer-readable storage medium, on which a computer program for implementing the methods in the foregoing method embodiments is stored.
  • a computer program for implementing the methods in the foregoing method embodiments is stored.
  • the computer program runs on a computer, the computer can implement the methods in the above method embodiments.
  • Embodiments of the present application further provide a computer program product, where the computer program product includes computer program code, and when the computer program code runs on a computer, causes the methods in the above method embodiments to be executed.
  • An embodiment of the present application further provides a chip, including a processor, where the processor is connected to a memory, where the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that all The chip executes the methods in the above method embodiments.
  • the term "and/or” in this application is only an association relationship to describe associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, and A and B exist at the same time. , there are three cases of B alone.
  • the character "/" in this document generally indicates that the contextual object is an "or” relationship; the term “" in this application can indicate "one” and "two or more", for example, A, B In and C, it can be expressed that A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, and A and B and C exist simultaneously, these seven situations.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请提供了一种策略管理的方法和装置，能够在核心网内实现对APP的业务访问、计费与控制策略进行管理，该方法包括：策略控制功能实体接收来自第一会话管理功能实体的第一请求，该第一请求用于请求第一应用实例的策略信息，第一应用实例用于向终端提供应用服务；策略控制功能实体确定第一应用实例的策略信息；该策略控制功能实体向第一会话管理功能实体发送第一应用实例的策略信息。

Description

策略管理的方法和装置
本申请要求于2021年03月31日提交中国专利局、申请号为202110351249.7、申请名称为“策略管理的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种策略管理的方法和装置。
背景技术
目前，在应用(application，APP)实例上线、更新或下线时，对该APP的业务访问、计费与控制策略的更新，均需要通过网络能力开放功能(network exposure function，NEF)对应用功能(application function，AF)实现能力开发来支持，APP的业务访问、计费与控制策略均通过外部网络能力开放接口来获取。因此，存在运营商与外部应用的信任和配合问题，导致对APP的策略控制效率低。
发明内容
本申请提供了一种策略管理的方法和装置，能够在核心网内实现对APP的计费与控制策略进行管理，提高对APP的策略控制的效率。
第一方面，提供一种策略管理的方法，包括：策略控制功能实体接收来自第一会话管理功能实体的第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；所述策略控制功能实体确定所述第一应用实例的策略信息；所述策略控制功能实体向所述第一会话管理功能实体发送所述第一应用实例的策略信息。
基于上述技术特征，将应用实例的策略控制纳入到核心网中，核心网中的策略控制功能实体可以确定应用实例的策略信息，并通过该应用实例接入的会话管理功能和用户面功能实现对该应用实例的业务访问、计费与控制策略进行管理；在应用实例新增、修改或删除时，运营商具有对应用实例的动态策略管理能力。
结合第一方面，在第一方面的某些实现方式中，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。其中，所述第一应用实例对应的应用的标识信息包括所述第一应用实例的名称。
结合第一方面，在第一方面的某些实现方式中，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制规则、所述第一应用实例的策略控制请求触发信息。
结合第一方面，在第一方面的某些实现方式中，所述策略控制功能实体确定所述第一应用实例的策略信息，包括：所述策略控制功能实体根据以下一项或多项，确定所述第一应用实例的策略信息：所述第一应用实例的上线、所述第一应用实例提供应用服务的数据 网络名称、所述第一应用实例支持的切片类型、所述第一应用实例的终端设备订阅列表信息、所述第一应用实例接入的用户面功能、所述第一应用实例的位置信息、所述第一应用实例的会话和业务连续性模式、所述第一应用实例的签约信息、所述第一应用实例的业务使用量。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述策略控制功能实体接收来自第二会话管理功能实体的第二请求，所述第二请求用于请求第一终端的策略信息；所述策略控制功能实体根据所述第一应用实例的策略信息确定所述第一终端的策略信息；所述策略控制功能实体向所述第二会话管理功能实体发送所述第一终端的策略信息。根据第一应用实例的策略信息动态调整第一终端的策略信息，可以使第一终端访问第一应用实例的过程中具有更好的访问体验。
可选的，所述策略控制功能实体也可以根据所述第一终端的位置信息、第一终端访问第一应用实例的业务使用量、第一终端接入的用户面功能、第一终端支持的切片类型、第一终端的会话和业务连续性模式或第一终端的签约策略等信息，确定所述第一终端的策略信息。
结合第一方面，在第一方面的某些实现方式中，所述策略控制功能实体根据所述第一应用实例的策略信息确定所述第一终端的策略信息，包括：所述策略控制功能实体根据以下一项或多项，确定所述第一终端的策略信息：所述第一应用实例的上线或下线、所述第一应用实例的位置信息、所述第一应用实例的业务使用量。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：若所述第一应用实例的业务使用量大于第一阈值，所述策略控制功能实体更新所述第一应用实例的策略信息。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述策略控制功能实体确定所述第一终端的终端路由选择策略URSP规则，所述URSP规则中包括第二应用实例的地址信息，所述URSP规则用于指示所述第一终端接入所述第二应用实例；所述策略控制功能实体向接入和移动性管理网络功能实体发送所述URSP规则。
结合第一方面，在第一方面的某些实现方式中，所述策略控制功能实体确定所述URSP规则，包括：所述策略控制功能实体根据所述第一应用实例的业务使用量、所述第一应用实例的下线、所述第一应用实例的故障或所述第一终端的位置信息的变化，确定所述URSP规则。
接入和移动性管理网络功能实体将所述URSP规则发送至第一终端，第一终端可以根据所述URSP规则中第二应用实例的地址信息访问第二应用实例，从而停止访问第一应用实例。可以避免第一终端在第一应用实例下线或故障等情况下继续访问第一应用实例。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述策略控制功能实体从所述第一会话管理功能实体接收所述第一应用实例的业务使用量；和/或，所述策略控制功能实体从所述第二会话管理功能实体接收所述第一终端访问所述第一应用实例的业务使用量。
第二方面，提供一种策略管理的方法，包括：第一会话管理功能实体向策略控制功能实体发送第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；所述第一会话管理功能实体从所述策略控制功能实体接收所述第一应用实例的策略信息；所述第一会话管理向第一用户面功能实体发送所述第一应用实 例的策略信息，所述第一应用实例的策略信息用于对所述第一应用实例的业务访问进行管理。
基于上述技术特征，核心网中的策略控制功能实体可以确定应用实例的策略信息，并通过该应用实例接入的会话管理功能和用户面功能实现对该应用实例的业务访问、计费与控制策略进行管理；在应用实例新增、修改或删除时，运营商具有对应用实例的策略管理能力。
结合第二方面，在第二方面的某些实现方式中，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
结合第二方面，在第二方面的某些实现方式中，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制、所述第一应用实例的策略控制请求触发信息。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述第一会话管理功能实体从第一用户面功能实体接收所述第一应用实例的业务使用量；所述第一会话管理功能实体向所述策略控制功能实体发送所述第一应用实例的业务使用量。
第三方面，提供了一种策略管理的方法，包括：第二会话管理功能实体向策略控制功能实体发送第二请求，所述第二请求用于请求第一终端的策略信息；所述第二会话管理功能实体从所述策略控制功能实体接收所述第一终端的策略信息；所述第二会话管理向第二用户面功能实体发送所述第一终端的策略信息，所述第一终端的策略信息用于对所述第一终端的业务访问进行管理。
基于上述技术特征，核心网中的策略控制功能实体可以确定第一终端的策略信息，并通过该第一终端接入的会话管理功能和用户面功能实现对该第一终端的业务访问、计费与控制策略进行管理。
结合第三方面，在第三方面的某些实现方式中，所述方法还包括：所述第二会话管理功能实体从第二用户面功能实体接收所述第一终端访问所述第一应用实例的业务使用量；所述第二会话管理功能实体向所述策略控制功能实体发送所述第一终端访问所述第一应用实例的业务使用量。
第四方面，提供了一种策略管理的方法，包括：第一用户面功能实体从第一会话管理功能实体接收第一应用实例的策略信息，其中，所述第一用户面功能实体是所述第一应用实例接入的用户面功能，所述第一应用实例用于向终端提供应用服务；所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理。
结合第四方面，在第四方面的某些实现方式中，所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理，包括：
所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务使用量进行统计和上报，和/或，对所述第一应用实例执行带宽管理，和/或，对所述第一应用实例的业务服务质量提供保障。
结合第四方面，在第四方面的某些实现方式中，所述方法还包括：所述第一用户面功能实体向所述第一会话管理功能实体发送所述第一应用实例的业务使用量。
第五方面，提供了一种策略管理的方法，包括：第二用户面功能实体从第二会话管理 功能实体接收第一终端的策略信息，其中，所述第二用户面功能实体是所述第一终端接入的用户面功能；所述第二用户面功能实体根据所述第一终端的策略信息，对所述第一终端的业务访问进行管理。
结合第五方面，在第五方面的某些实现方式中，所述第二用户面功能实体根据所述第一终端的策略信息，对所述第一终端的业务访问进行管理，包括：
所述第一用户面功能实体根据所述第一终端的策略信息，对所述第一终端的业务使用量进行统计和上报，和/或，对所述第一终端执行带宽管理。
结合第五方面，在第五方面的某些实现方式中，所述方法还包括：所述第二用户面功能实体向所述第二会话管理功能实体发送所述第一终端的业务使用量。
第六方面，提供了一种通信装置，包括：收发单元，用于接收来自第一会话管理功能实体的第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；处理单元，用于确定所述第一应用实例的策略信息；所述收发单元还用于，向所述第一会话管理功能实体发送所述第一应用实例的策略信息。
结合第六方面，在第六方面的某些实现方式中，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
结合第六方面，在第六方面的某些实现方式中，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制规则、所述第一应用实例的策略控制请求触发信息。
结合第六方面，在第六方面的某些实现方式中，所述处理单元具体用于，根据以下一项或多项，确定所述第一应用实例的策略信息：所述第一应用实例的上线、所述第一应用实例提供应用服务的数据网络名称、所述第一应用实例支持的切片类型、所述第一应用实例的终端设备订阅列表信息、所述第一应用实例接入的用户面功能、所述第一应用实例的位置信息、所述第一应用实例的会话和业务连续性模式、所述第一应用实例的签约信息、所述第一应用实例的业务使用量。
结合第六方面，在第六方面的某些实现方式中，所述收发单元还用于，接收来自第二会话管理功能实体的第二请求，所述第二请求用于请求第一终端的策略信息；所述处理单元还用于，根据所述第一应用实例的策略信息确定所述第一终端的策略信息；所述处理单元还用于，向所述第二会话管理功能实体发送所述第一终端的策略信息。
结合第六方面，在第六方面的某些实现方式中，所述处理单元具体用于，根据以下一项或多项，确定所述第一终端的策略信息：所述第一应用实例的上线或下线、所述第一应用实例的位置信息、所述第一应用实例的业务使用量。
结合第六方面，在第六方面的某些实现方式中，所述处理单元还用于，若所述第一应用实例的业务使用量大于第一阈值，更新所述第一应用实例的策略信息。
结合第六方面，在第六方面的某些实现方式中，所述处理单元还用于，确定所述第一终端的终端路由选择策略URSP规则，所述URSP规则中包括第二应用实例的地址信息，所述URSP规则用于指示所述第一终端接入所述第二应用实例；所述收发单元还用于，向接入和移动性管理网络功能实体发送所述URSP规则。
结合第六方面，在第六方面的某些实现方式中，所述处理单元具体用于，根据所述第 一应用实例的业务使用量、所述第一应用实例的下线、所述第一应用实例的故障或所述第一终端的位置信息的变化，确定所述URSP规则。
结合第六方面，在第六方面的某些实现方式中，所述收发单元还用于，从所述第一会话管理功能实体接收所述第一应用实例的业务使用量；和/或，从所述第二会话管理功能实体接收所述第一终端访问所述第一应用实例的业务使用量。
第七方面，提供了一种通信装置，包括：收发单元，用于向策略控制功能实体发送第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；所述收发单元还用于，从所述策略控制功能实体接收所述第一应用实例的策略信息；所述收发单元还用于，向第一用户面功能实体发送所述第一应用实例的策略信息，所述第一应用实例的策略信息用于对所述第一应用实例的业务访问进行管理。
结合第七方面，在第七方面的某些实现方式中，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
结合第七方面，在第七方面的某些实现方式中，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制、所述第一应用实例的策略控制请求触发信息。
结合第七方面，在第七方面的某些实现方式中，所述收发单元还用于：从第一用户面功能实体接收所述第一应用实例的业务使用量；向所述策略控制功能实体发送所述第一应用实例的业务使用量。
第八方面，提供了一种通信装置，包括：收发单元，用于向策略控制功能实体发送第二请求，所述第二请求用于请求第一终端的策略信息；所述收发单元还用于，从所述策略控制功能实体接收所述第一终端的策略信息；所述收发单元还用于，向第二用户面功能实体发送所述第一终端的策略信息，所述第一终端的策略信息用于对所述第一终端的业务访问进行管理。
结合第八方面，在第八方面的某些实现方式中，所述收发单元还用于：从第二用户面功能实体接收所述第一终端访问所述第一应用实例的业务使用量；向所述策略控制功能实体发送所述第一终端访问所述第一应用实例的业务使用量。
第九方面，提供了一种通信装置，包括：收发单元，用于从第一会话管理功能实体接收第一应用实例的策略信息，其中，所述第一用户面功能实体是所述第一应用实例接入的用户面功能，所述第一应用实例用于向终端提供应用服务；处理单元，用于根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理。
结合第九方面，在第九方面的某些实现方式中，所述处理单元具体用于，根据所述第一应用实例的策略信息，对所述第一应用实例的业务使用量进行统计和上报，和/或，对所述第一应用实例执行带宽管理，和/或，对所述第一应用实例的业务服务质量提供保障。
结合第九方面，在第九方面的某些实现方式中，所述收发单元还用于，向所述第一会话管理功能实体发送所述第一应用实例的业务使用量。
第十方面，提供了一种通信装置，包括：收发单元，用于从第二会话管理功能实体接收第一终端的策略信息，其中，所述第二用户面功能实体是所述第一终端接入的用户面功能；处理单元，用于根据所述第一终端的策略信息，对所述第一终端的业务访问进行管理。
结合第十方面，在第十方面的某些实现方式中，所述处理单元具体用于，根据所述第一终端的策略信息，对所述第一终端的业务使用量进行统计和上报，和/或，对所述第一终端执行带宽管理。
结合第十方面，在第十方面的某些实现方式中，所述收发单元还用于，向所述第二会话管理功能实体发送所述第一终端的业务使用量。
第十一方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第一方面或第一方面任意可能的实现方式中的方法。
第十二方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第二方面或第二方面任意可能的实现方式中的方法。
第十三方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第三方面或第三方面任意可能的实现方式中的方法。
第十四方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第四方面或第四方面任意可能的实现方式中的方法。
第十五方面，提供一种通信设备，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如第五方面或第五方面任意可能的实现方式中的方法。
第十六方面，提供了一种通信系统，包括以下一个或多个：执行第一方面所述方法的策略控制功能实体、执行第二方面所述方法的第一会话管理功能实体、执行第三方面所述方法的第二会话管理功能实体、执行第四方面所述方法的第一用户面功能实体、执行第五方面所述方法的第二用户面功能实体。
第十七方面，提供了一种计算机可读存储介质，所述计算机可读介质存储有计算机程序；所述计算机程序在计算机上运行时，使得计算机执行第一方面至第五方面或第一方面至第五方面任意可能的实现方式中的方法。
第十八方面，提供了一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得第一方面至第五方面或第一方面至第五方面中任一种可能的实现方式中的方法被执行。
第十九方面，提供了一种芯片，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述芯片执行上述第一方面至第五方面或第一方面至第五方面中任一种可能实现方式中的方法。
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图1是5G核心网系统架构示意图。
图2是3GPP中ULCL的架构示意图。
图3是3GPP中BP的架构示意图。
图4是本申请实施例的一种策略管理的方法的示意性流程交互图。
图5是本申请实施例的另一种策略管理的方法的示意性流程交互图。
图6是本申请实施例的一种通信装置的示意性框图。
图7是本申请实施例的另一种通信装置的示意性框图。
图8是本申请实施例的另一种通信装置的示意性框图。
图9是本申请实施例的另一种通信装置的示意性框图。
图10是本申请实施例的另一种通信装置的示意性框图。
图11是本申请实施例的一种通信设备的示意性框图。
图12是本申请实施例的一种通信系统的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例可以应用于各种通信系统，例如无线局域网系统(wireless local area network，WLAN)、窄带物联网系统(narrow band-internet of things，NB-IoT)、全球移动通信系统(global system for mobile communications，GSM)、增强型数据速率GSM演进系统(enhanced data rate for gsmevolution，EDGE)、宽带码分多址系统(wideband code division multiple access，WCDMA)、码分多址2000系统(code division multiple access，CDMA2000)、时分同步码分多址系统(time division-synchronization code division multiple access，TD-SCDMA)，长期演进系统(long term evolution，LTE)、卫星通信、第五代(5th generation，5G)系统或者将来出现的新的通信系统等。
本申请实施例中所涉及到的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。终端可以是移动台(mobile station，MS)、用户单元(subscriber unit)、用户设备(user equipment,UE)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端等。
在5G核心网架构切换为服务化架构，各网络功能(network function，NF)实例网元可以通过服务化接口或点对点接口进行通信，完成相应终端注册、会话建立/更新/删除、位置移动切换、切片、策略管理、能力开放等功能，关键特性如下：
通过模块化实现网络功能间的解耦和整合，各解耦后的网络功能抽象为网络的服务，独立扩容、独立演进、按需部署。
控制面所有NF之间的交互采用服务化接口，同一种服务可以被多种NF调用，降低NF之间接口定义的耦合度，最终实现整网功能的按需定制，灵活支持不同的业务场景和需求。
如图1所示，出示了5G核心网系统架构示意图。其中，包括：接入和移动管理功能(access and mobility management function，AMF)，用于执行接入鉴权和移动性管理控制功能；会话管理功能(session management function，SMF)；认证服务功能(authentication server function，AUSF)；网络切片选择功能(network slice selection function，NSSF)， 用于为UE选择所使用的网络切片；能力开放网络功能(network exposure function，NEF),用于对外开放网络能力和服务；网络功能库(network function repository function，NRF)，用于服务注册、发现、授权等功能；策略控制功能(policy control function，PCF)，实现策略决策功能；统一数据管理(unified data management，UDM)，用于统一数据库，存放用户的签约数据等；应用功能(application function，AF)；用户面功能(user plane function，UPF)，用于执行用户面数据的转发等功能。
为了在5G网络中，应用能够更加灵活的选择部署位置，不会因为核心网的位置过高而导致部署在边缘的业务流量出现迂回。第三代合作伙伴计划(3rd generation partnership project，3GPP)在制定5G核心网用户面业务时，新增了4G电子产品码(electronic product code，EPC)不支持的用户面ULCL/分支点(branching point，BP)功能。
如图2所示，出示了3GPP中ULCL的架构示意图。3GPP对UPF上行分类器(uplink-classifier，ULCL)的架构定义如下：在无线接入网(radio access network，RAN)与PDU会话锚点的UPF之间可以插入一个新的上行分类器，如同其名字所定义，ULCL的作用是数据流的上行分类器，即基于对业务流上行特征的识别，分流数据到本地数据网络(data network，DN)或是到远端UPF会话锚点。同时，ULCL/BP还需要对下行流进行聚合处理。
如图3所示，出示了3GPP中BP的架构示意图。BP与ULCL的作用是一样的，只是BP是针对第六版互联网协议(internet protocol version 6，IPv6)的分流点插入，IPv6在用户面和第四版互联网协议(internet protocol version 4，IPv4)有一点差异：对于IPv4或者IPv6类型的PDU会话，PDU会话锚点可以是分配给UE的IP地址/前缀的IP锚点。其中，对于IPv4类型的PDU会话或者不是多归属(multi-homed)的IPv6的PDU会话，当多个PDU会话锚点被使用(由于ULCL被插入)时，仅有一个PDU会话锚点是IP锚点。但是，对于一个IPv6的Multi-homed的PDU会话，则可以有多个IP锚点。
根据RFC4191描述，在IPv6 multi-homed PDU会话的生命周期内的任何时候SMF能够向UE发送路由规则，用于影响在IPv6路由广播消息中的源IP地址前缀的选择。
目前，应用(application，APP)没有接入到核心网内部，在APP实例上线、更新或下线时，对该APP的业务访问、计费与控制策略的更新，均需要通过网络能力开放功能(network exposure function，NEF)对应用功能(application function，AF)实现能力开发来支持，APP的业务访问、计费与控制策略均通过外部网络能力开放接口来获取。因此，APP实例新增、修改或删除时，运营商没有对APP的策略管理能力。除此之外，运营商和应用服务商之间需要配合，使提供服务的效率低。
应理解，应用是可以为终端侧的APP提供服务的APP服务器。每个应用可以部署多个应用的实例来共同提供服务，即一个应用可以包括该应用对应的多个实例，不同的应用的实例用于提供不同的APP服务。例如：提供互联网业务的某一类应用服务。示例性的，APP例如可以为淘宝，用于提供上网购物的互联网业务；或者，APP例如可以为腾讯视频，用于提供上网看视频的互联网业务，等等。本申请实施例中的APP实例是指运行APP的实例。例如，当APP为淘宝时，对应的APP实例是指运行淘宝的实例；或者，当APP为腾讯视频时，对应的APP实例是指运行腾讯视频的实例。
为此，本申请提出了一种策略管理的方法，能够在核心网内实现对APP的业务访问、 计费与控制策略进行管理。
需要强调的是，本申请实施例以5G核心网为例，但不限定于5G核心网，对于未来的网络架构(例如第六代网络)同样适用。
如图4所示，出示了本申请实施例的一种策略管理的方法的示意性流程交互图。
410，第一应用实例接入核心网后，第一会话管理功能实体可以通过扩展的PCF与SMF之间的策略控制创建(policy control create)服务接口，向策略控制功能实体发送第一请求，用于请求第一应用实例的策略信息。其中，第一会话管理功能实体是第一应用实例对应的应用接入的会话管理功能，第一应用实例用于向终端提供应用服务。
第一请求中可以包括以下至少一项或多项信息：第一应用实例的标识信息、第一应用实例对应的应用的标识信息、第一应用实例的域名信息(domain)和第一应用实例的地址信息等。其中，第一应用实例对应的应用的标识信息包括应用的名称(application name)。应用的标识信息可以是唯一确定该应用的标识，类似于终端的签约永久标识(subscription permanent identifier，SUPI)、临时移动用户标识(temporary mobile subscriber identity，IMSI)等信息。应理解，应用接入核心网后(或者说应用上线后)，第一会话管理功能实体或用户面功能实体可以为该应用的实例分配地址信息。
可选的，在第一会话管理功能实体向策略控制功能实体发送第一请求之前，第一会话管理功能实体可以从统一数据管理功能实体(unified data management，UDM)获取第一应用实例签约的会话和服务连续性(session and service continuity)模式、提供应用服务的数据网络名称(data network name，DNN)、支持的切片类型以及本地公用陆地移动网络(home public land mobile network，HPLMN)等信息。
可选的，第一请求中还可以携带第一应用实例的会话和服务连续性模式、第一应用实例提供应用服务的DNN、第一应用的位置信息以及第一应用实例支持的切片类型等信息。
第一应用的策略信息可以包括以下一项或多项：第一应用实例的会话的相关策略信息、第一应用实例的策略与计费控制(policy and charging control,PCC)规则、第一应用实例的策略控制请求触发信息等。
其中，第一应用实例的会话相关的策略信息包括以下策略中的至少一个：计费策略、默认计费策略、事件触发器策略、重授权时间限制策略、互联网协议IP索引策略、授权的会话聚合最大速率策略、授权的默认服务质量参数策略等。
PCC规则是策略控制功能实体根据用户签约、运营商策略制定的规则，可以包括业务使用量统计规则和带宽管理规则等。第一应用实例的策略控制请求触发信息包括开始执行策略的触发条件信息和更新策略的触发条件信息。
420，策略控制功能实体接收第一会话管理功能实体发送的第一请求。
430，策略控制功能实体根据第一请求，确定第一应用实例的策略信息。应理解，确定第一应用实例的策略信息可以理解为首次制定第一应用实例的策略信息，也可以理解为更新第一应用实例的策略信息。
可选的，策略控制功能实体可以基于以下至少一种信息，确定该第一应用实例所属的虚拟业务网络，动态生成并分发该第一应用实例的策略信息：第一应用实例的签约信息、第一应用实例接入的用户面功能、第一应用实例的会话和服务连续性模式、第一应用的位置信息、第一应用实例提供应用服务的DNN以及第一应用实例支持的切片类型。
具体而言，策略控制功能实体可以根据以下一项或多项信息，确定第一应用实例的策略信息：第一应用实例的上线、第一应用实例提供应用服务的数据网络名称、第一应用实例支持的切片类型、第一应用实例的终端设备订阅列表信息、第一应用实例接入的用户面功能、第一应用实例的位置信息、第一应用实例的会话和服务连续性模式、第一应用实例的签约信息、第一应用实例的业务使用量等信息。
例如，策略控制功能实体可以根据第一应用实例的位置信息，确定可以访问该第一应用实例的终端的位置范围，在该位置范围内的终端才可以访问该第一应用实例。
又例如，策略控制功能实体可以根据第一应用实例的业务使用量，确定第一应用实例的策略信息。若第一应用实例的业务使用量大于第一阈值，策略控制功能实体更新第一应用实例的策略信息，使第一应用实例接入的第一用户面功能实体执行相应的带宽管理策略，以减少访问该第一应用实例的流量。
第一用户面功能实体和第一会话管理功能实体配合实现对第一应用实例业务访问的带宽管理策略，可以基于业务使用量统计规则定义的阈值上报该第一应用实例的业务使用量。可选的，第一用户面功能实体可以向第一会话管理功能实体发送第一应用实例的业务使用量，第一会话管理功能实体从第一用户面功能实体接收该第一应用实例的业务使用量，第一会话管理功能实体将该第一应用实例的业务使用量发送至策略控制功能实体。则策略控制功能实体可以根据从第一会话管理功能实体接收的第一应用实例的业务使用量确定第一应用实例的策略信息。
440，策略控制功能实体向第一会话管理功能实体发送第一应用实例的策略信息，使第一会话管理功能实体配合实现对该第一应用实例的业务访问的管理。具体而言，策略控制功能实体可以通过策略控制创建响应消息，向第一会话管理功能实体发送第一应用实例的策略信息。
450，第一会话管理功能实体从策略控制功能实体接收第一应用实例的策略信息。
460，第一会话管理功能实体向第一用户面功能实体发送第一应用实例的策略信息，使第一用户面执行该策略信息。
470，第一用户面功能实体从第一会话管理功能实体接收第一应用实例的策略信息，并根据该策略信息对第一应用实例的业务访问进行管理。
具体而言，可选的，第一用户面功能实体根据第一应用实例的策略信息，可以对第一应用实例的业务使用量进行统计和上报，也可以对第一应用实例执行带宽管理，还可以对第一应用实例的业务服务质量提供保障。除此之外，第一用户面功能实体还可以根据第一应用实例的策略信息对第一应用实例的访问进行阻断。
可选的，第二会话管理功能实体可以向策略控制功能实体发送第二请求，该第二请求用于请求第一终端的策略信息。其中，第二会话管理功能实体是第一终端接入的会话管理功能，第一终端可以为需要访问第一应用实例的终端。
可选的，第一应用实例对应的应用接入的会话管理功能实体与第一终端接入的会话管理功能实体可能为同一个，也可能不同。换言之，第一会话管理功能实体与第二会话管理功能实体可以为同一个，本申请实施例对此不做限定。
第一终端的策略信息可以包括以下一项或多项：第一终端的会话的相关策略信息、第一终端的策略与计费控制(policy and charging control,PCC)规则、第一终端的策略控制 请求触发信息等。
策略控制功能实体可以接收来自第二会话管理功能实体的第二请求，并根据第一应用实例的策略信息确定第一终端的策略信息。例如，策略控制功能实体可以根据第一应用实例的业务使用量统计规则，确定第一终端访问第一应用实例的业务使用量统计规则。
具体而言，可选的，策略控制功能实体根据以下一项或多项，确定第一终端的策略信息：第一应用实例的上线或下线、第一应用实例的位置信息、第一应用实例的业务使用量等。应理解，确定第一终端的策略信息可以理解为首次制定第一终端的策略信息，也可以理解为更新第一终端的策略信息。
例如，若第一应用实例下线，则策略控制功能实体可以更新第一终端的策略信息，使第一终端接入其他已上线的应用实例，其中，第一应用实例为第一终端需要访问的应用实例。又例如，策略控制功能实体可以根据第一应用实例的整体的业务访问情况，以及不同终端对该第一应用实例的业务访问情况，制定或调整第一终端的策略信息；若第一应用实例的业务使用量大于第一阈值，则策略控制功能实体可以更新第一终端的策略信息，以减少第一终端对第一应用实例的业务访问量。又例如，若第一应用实例的位置信息发生变化，第一终端与第一应用实例之间的距离大于可访问的距离范围，则策略控制功能实体可以更新第一终端的策略信息，使第一终端停止访问第一应用实例。
策略控制功能实体也可以根据第一终端的位置信息、第一终端访问第一应用实例的业务使用量、第一终端接入的用户面功能、第一终端支持的切片类型、第一终端的会话和业务连续性模式或第一终端的签约策略等信息，确定该第一终端的策略信息。
应理解，策略控制功能实体可以根据不同终端的会话特征信息、第一应用实例提供应用服务的DNN、第一应用实例支持的切片类型以及需要访问该第一应用实例的终端设备列表等信息，生成差异化的业务访问、计费与控制策略。
除此之外，在多接入边缘计算(multi-access edge computing，MEC)场景中，边缘侧部署所部署的应用实例超负荷或者故障时，策略控制功能实体可以针对部分或全部终端对该应用实例的业务访问触发删除原有的上行分类器分流规则，可以重新选择其他的用户面功能下发新的上行分流规则使终端接入新的应用实例，也可以让访问业务回到中心侧用户面功能，通过N6接口直接访问Internet的应用实例。
可选的，第二会话管理功能实体可以从第二用户面功能实体接收第一终端访问第一应用实例的业务使用量，第二会话管理功能实体可以将该第一终端访问第一应用实例的业务使用量发送至策略控制功能实体。因此，策略控制功能实体可以根据从第二会话管理功能实体接收的该第一终端访问第一应用实例的业务使用量确定第一终端的策略信息。其中，第二用户面功能实体是第一终端接入的用户面功能实体。
可选的，第一应用实例对应的应用接入的用户面功能实体与第一终端接入的用户面功能实体可能为同一个，也可能不同。换言之，第一用户面功能实体与第二用户面功能实体可以为同一个，本申请实施例对此不做限定。
策略控制功能实体可以向第二会话管理功能实体发送确定的第一终端的策略信息，第二会话管理功能实体接收该第一终端的策略信息，并将该第一终端的策略信息发送至第二用户面功能实体，使第二用户面功能实体对第一终端的业务访问进行管理。第二用户面功能实体可以从第二会话管理功能实体接收第一终端的策略信息，并根据第一终端的策略信 息，对第一终端的业务访问进行管理。
具体而言，可选的，第一用户面功能实体根据第一终端的策略信息，可以对第一终端的业务使用量进行统计和上报，还可以对第一终端执行带宽管理等。
可选的，策略控制功能实体可以向终端主动发起对终端路由选择策略(UE route selection policy，URSP)的更新流程，定义终端对第一应用实例访问的URSP规则。在本申请实施例中，终端可以与第一应用实例处于同一虚拟业务网络的。
策略控制功能实体可以确定第一终端访问第一应用实例的URSP规则，该URSP规则可以用于指示第一终端接入或访问第二应用实例，该URSP规则中包括第二应用实例的地址信息，该地址信息可以为IP地址，需要访问第二应用实例的第一终端可以发起建立相应的PDU会话。
具体而言，策略控制功能实体可以根据第一应用实例的业务使用量、第一应用实例的下线、所述第一应用实例的故障或第一终端的位置信息的变化等信息，确定URSP规则。
若第一应用实例接入的终端会话数过多或者第一应用实例的业务使用量超过预配置的第一阈值，即出现过载现象，此时，策略控制功能实体可以向访问第一应用实例的第一终端发送URSP规则，使第一终端访问第二应用实例(其他应用实例)。该方案可以将访问第一应用实例的终端调整到其他应用实例进行业务访问，减少访问该第一应用实例的终端会话数，从而可以达到动态调整该第一应用实例的负荷的目标。
若第一应用实例故障、第一应用实例下线或者第一应用实例长时间没有流量访问，策略控制功能实体可以制定URSP规则，将访问该第一应用实例的第一终端调整到第二应用实例进行业务访问。在第一应用实例新上线或轻载的场景下，策略控制功能实体也可以通过制定URSP规则，主动调整对该第一应用实例的访问会话数和吞吐量。
若第一终端的位置信息发生变化，第一终端与第一应用实例之间的距离大于可访问的距离范围，则策略控制功能实体可以制定URSP规则，使第一终端访问第二应用实例，停止访问第一应用实例，其中，第二应用实例与第一终端的距离在可访问的距离范围内。策略控制功能实体可以通过策略控制更新通知(policy control update notify)消息，将该URSP规则发送至移动性管理网络功能实体AMF；AMF通过与第一终端之间的N1接口，将该URSP规则发送给第一终端；第一终端根据该URSP规则中的第二应用实例的地址信息访问第二应用实例、停止访问第一应用实例。应理解，第一终端将URSP规则中的第二应用实例的地址信息作为该第二应用实例业务访问的服务器IP地址来处理。
应理解，策略控制功能实体可以针对接入到5G网络中的不同应用实例定义不同的策略信息(例如，计费和服务质量策略信息)，比如，通过标准IP路由访问的internet接入的应用实例的业务访问可以收费更高、服务质量更低。
若应用实例接入位置属于边缘场景下的用户面功能，策略控制功能实体可以针对终端对该应用实例的业务访问触发插入一个上行分类器，终端访问该第一应用实例的业务无需环回到中心侧的锚点用户面功能，直接通过上行分流规则访问边缘侧用户面功能上接入的应用实例。
本申请实施例提供的技术方案中，将应用实例的策略控制纳入到核心网中，核心网中的策略控制功能实体可以确定应用实例的策略信息，并通过该应用实例接入的会话管理功能和用户面功能实现对该应用实例的业务访问、计费与控制策略进行管理；在应用实例新 增、修改或删除时，运营商具有对应用实例的动态策略管理能力。
如图5所示，出示了本申请实施例的另一种策略管理的方法的示意性流程交互图。
510，第二会话管理功能实体向策略控制功能实体发送第二请求，该第二请求用于请求第一终端的策略信息。其中，第二会话管理功能实体是第一终端接入的会话管理功能，第一终端可以为需要访问第一应用实例的终端。
520，策略控制功能实体可以接收来自第二会话管理功能实体的第二请求。
530，策略控制功能实体根据第一应用实例的策略信息确定第一终端的策略信息。
540，策略控制功能实体向第二会话管理功能实体发送确定的第一终端的策略信息。
550，第二会话管理功能实体从策略控制功能实体接收第一终端的策略信息。
560，第二会话管理功能实体将该第一终端的策略信息发送至第二用户面功能实体，其中，第二用户面功能实体是第一终端接入的用户面功能。
570，第二用户面功能实体从第二会话管理功能实体接收第一终端的策略信息，并根据第一终端的策略信息，对第一终端的业务访问进行管理。
应理解，本申请实施例中的实现方法可具体参照图4实施例中的方法，在此不做赘述。
本申请实施例提出了一种通信装置，如图6所示，出示了本申请实施例的一种通信装置600的示意性框图。该装置可以应用于本申请实施例中的策略控制功能实体。该通信装置600包括：
收发单元610，用于接收来自第一会话管理功能实体的第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；
处理单元620，用于确定所述第一应用实例的策略信息；
所述收发单元610还用于，向所述第一会话管理功能实体发送所述第一应用实例的策略信息。
可选的，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
可选的，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制规则、所述第一应用实例的策略控制请求触发信息。
可选的，所述处理单元620具体用于，根据以下一项或多项，确定所述第一应用实例的策略信息：所述第一应用实例的上线、所述第一应用实例提供应用服务的数据网络名称、所述第一应用实例支持的切片类型、所述第一应用实例的终端设备订阅列表信息、所述第一应用实例接入的用户面功能、所述第一应用实例的位置信息、所述第一应用实例的会话和业务连续性模式、所述第一应用实例的签约信息、所述第一应用实例的业务使用量。
可选的，所述收发单元610还用于，接收来自第二会话管理功能实体的第二请求，所述第二请求用于请求第一终端的策略信息；
所述处理单元620还用于，根据所述第一应用实例的策略信息确定所述第一终端的策略信息；
所述处理单元620还用于，向所述第二会话管理功能实体发送所述第一终端的策略信息。
可选的，所述处理单元620具体用于，根据以下一项或多项，确定所述第一终端的策略信息：所述第一应用实例的上线或下线、所述第一应用实例的位置信息、所述第一应用实例的业务使用量。
可选的，所述处理单元620还用于，若所述第一应用实例的业务使用量大于第一阈值，更新所述第一应用实例的策略信息。
可选的，所述处理单元620还用于，确定所述第一终端的终端路由选择策略URSP规则，所述URSP规则中包括第二应用实例的地址信息，所述URSP规则用于指示所述第一终端接入所述第二应用实例；
所述收发单元610还用于，向接入和移动性管理网络功能实体发送所述URSP规则。
可选的，所述处理单元620具体用于，根据所述第一应用实例的业务使用量、所述第一应用实例的下线、所述第一应用实例的故障或所述第一终端的位置信息的变化，确定所述URSP规则。
可选的，所述收发单元610还用于，从所述第一会话管理功能实体接收所述第一应用实例的业务使用量；和/或，从所述第二会话管理功能实体接收所述第一终端访问所述第一应用实例的业务使用量。
本申请实施例提出了另一种通信装置，如图7所示，出示了本申请实施例的一种通信装置700的示意性框图。该装置可以应用于本申请实施例中的第一会话管理功能实体。该通信装置700包括：
收发单元710，用于向策略控制功能实体发送第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；
所述收发单元710还用于，从所述策略控制功能实体接收所述第一应用实例的策略信息；
所述收发单元710还用于，向第一用户面功能实体发送所述第一应用实例的策略信息，所述第一应用实例的策略信息用于对所述第一应用实例的业务访问进行管理。
可选的，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
可选的，所述第一应用实例的策略信息包括以下一项或多项：所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制、所述第一应用实例的策略控制请求触发信息。
可选的，所述收发单元710还用于：从第一用户面功能实体接收所述第一应用实例的业务使用量；向所述策略控制功能实体发送所述第一应用实例的业务使用量。
本申请实施例提出了另一种通信装置，如图8所示，出示了本申请实施例的一种通信装置800的示意性框图。该装置可以应用于本申请实施例中的第二会话管理功能实体。该通信装置800包括：
收发单元810，用于向策略控制功能实体发送第二请求，所述第二请求用于请求第一终端的策略信息；
所述收发单元810还用于，从所述策略控制功能实体接收所述第一终端的策略信息；
所述收发单元810还用于，向第二用户面功能实体发送所述第一终端的策略信息，所 述第一终端的策略信息用于对所述第一终端的业务访问进行管理。
可选的，所述收发单元810还用于：从第二用户面功能实体接收所述第一终端访问所述第一应用实例的业务使用量；向所述策略控制功能实体发送所述第一终端访问所述第一应用实例的业务使用量。
本申请实施例提出了另一种通信装置，如图9所示，出示了本申请实施例的一种通信装置900的示意性框图。该装置可以应用于本申请实施例中的第一用户面功能实体。该通信装置900包括：
收发单元910，用于从第一会话管理功能实体接收第一应用实例的策略信息，其中，所述第一用户面功能实体是所述第一应用实例接入的用户面功能，所述第一应用实例用于向终端提供应用服务；
处理单元920，用于根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理。
可选的，所述处理单元920具体用于，根据所述第一应用实例的策略信息，对所述第一应用实例的业务使用量进行统计和上报，和/或，对所述第一应用实例执行带宽管理，和/或，对所述第一应用实例的业务服务质量提供保障。
可选的，所述收发单元910还用于，向所述第一会话管理功能实体发送所述第一应用实例的业务使用量。
本申请实施例提出了另一种通信装置，如图10所示，出示了本申请实施例的一种通信装置1000的示意性框图。该装置可以应用于本申请实施例中的第二用户面功能实体。该通信装置1000包括：
收发单元1010，用于从第二会话管理功能实体接收第一终端的策略信息，其中，所述第二用户面功能实体是所述第一终端接入的用户面功能；
处理单元1020，用于根据所述第一终端的策略信息，对所述第一终端的业务访问进行管理。
可选的，所述处理单元1020具体用于，根据所述第一终端的策略信息，对所述第一终端的业务使用量进行统计和上报，和/或，对所述第一终端执行带宽管理。
可选的，所述收发单元1010还用于，向所述第二会话管理功能实体发送所述第一终端的业务使用量。本申请实施例提供了一种通信设备1100，如图11所示，出示了本申请实施例的一种通信设备1100的示意性框图。
该设备1100包括：处理器1110和收发器1120，所述收发器1120用于接收计算机代码或指令，并传输至所述处理器1110，所述处理器1110运行所述计算机代码或指令，如本申请实施例中任意可能的实现方式中的方法。
上述的处理器1110可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例 所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例提供了一种通信系统1200，包括本申请实施例提供的无线通信的方法中的策略控制功能实体1210以及与所述策略控制功能实体通信的其他通信设备、第一会话管理功能实体1220以及与所述第一会话管理功能实体通信的其他通信设备、第一用户面功能实体1230以及与所述第一用户面功能实体通信的其他通信设备。如图12所示，出示了本申请实施例的一种通信系统1200的示意性框图。
本申请实施例还提供了另一种通信系统，包括本申请实施例提供的无线通信的方法中的策略控制功能实体、第一会话管理功能实体、第一用户面功能实体、第二会话管理功能实体和第二用户面功能实体。
本申请实施例还提供了一种计算机可读存储介质，其上存储有用于实现上述方法实施例中的方法的计算机程序。当该计算机程序在计算机上运行时，使得该计算机可以实现上述方法实施例中的方法。
本申请实施例还提供了一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得上述方法实施例中的方法被执行。
本申请实施例还提供了一种芯片，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述芯片执行上述方法实施例中的方法。
另外，本申请中术语“和/或”，仅仅是一种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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；本申请中术语“”，可以表示“一个”和“两个或两个以上”，例如，A、B和C中，可以表示：单独存在A，单独存在B，单独存在C、同时存在A和B，同时存在A和C，同时存在C和B，同时存在A和B和C，这七种情况。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (23)

  1. 一种策略管理的方法，其特征在于，包括：
    策略控制功能实体接收来自第一会话管理功能实体的第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；
    所述策略控制功能实体确定所述第一应用实例的策略信息；
    所述策略控制功能实体向所述第一会话管理功能实体发送所述第一应用实例的策略信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一应用实例的策略信息包括以下一项或多项：
    所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制规则、所述第一应用实例的策略控制请求触发信息。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述策略控制功能实体确定所述第一应用实例的策略信息，包括：
    所述策略控制功能实体根据以下一项或多项，确定所述第一应用实例的策略信息：所述第一应用实例的上线、所述第一应用实例提供应用服务的数据网络名称、所述第一应用实例支持的切片类型、所述第一应用实例的终端设备订阅列表信息、所述第一应用实例接入的用户面功能、所述第一应用实例的位置信息、所述第一应用实例的会话和业务连续性模式、所述第一应用实例的签约信息、所述第一应用实例的业务使用量。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述方法还包括：
    所述策略控制功能实体接收来自第二会话管理功能实体的第二请求，所述第二请求用于请求第一终端的策略信息；
    所述策略控制功能实体根据所述第一应用实例的策略信息确定所述第一终端的策略信息；
    所述策略控制功能实体向所述第二会话管理功能实体发送所述第一终端的策略信息。
  6. 根据权利要求5所述的方法，其特征在于，所述策略控制功能实体根据所述第一应用实例的策略信息确定所述第一终端的策略信息，包括：
    所述策略控制功能实体根据以下一项或多项，确定所述第一终端的策略信息：所述第一应用实例的上线或下线、所述第一应用实例的位置信息、所述第一应用实例的业务使用量。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    若所述第一应用实例的业务使用量大于第一阈值，所述策略控制功能实体更新所述第一应用实例的策略信息。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述方法还包括：
    所述策略控制功能实体确定所述第一终端的终端路由选择策略URSP规则，所述 URSP规则中包括第二应用实例的地址信息，所述URSP规则用于指示所述第一终端接入所述第二应用实例；
    所述策略控制功能实体向接入和移动性管理网络功能实体发送所述URSP规则。
  9. 根据权利要求8所述的方法，其特征在于，所述策略控制功能实体确定所述URSP规则，包括：
    所述策略控制功能实体根据所述第一应用实例的业务使用量、所述第一应用实例的下线、所述第一应用实例的故障或所述第一终端的位置信息的变化，确定所述URSP规则。
  10. 根据权利要求5至9中任一项所述的方法，其特征在于，所述方法还包括：
    所述策略控制功能实体从所述第一会话管理功能实体接收所述第一应用实例的业务使用量；和/或，
    所述策略控制功能实体从所述第二会话管理功能实体接收所述第一终端访问所述第一应用实例的业务使用量。
  11. 一种策略管理的方法，其特征在于，包括：
    第一会话管理功能实体向策略控制功能实体发送第一请求，所述第一请求用于请求第一应用实例的策略信息，所述第一应用实例用于向终端提供应用服务；
    所述第一会话管理功能实体从所述策略控制功能实体接收所述第一应用实例的策略信息；
    所述第一会话管理向第一用户面功能实体发送所述第一应用实例的策略信息，所述第一应用实例的策略信息用于对所述第一应用实例的业务访问进行管理。
  12. 根据权利要求11所述的方法，其特征在于，所述第一请求包括以下一项或多项：所述第一应用实例的标识信息、所述第一应用实例对应的应用的标识信息、所述第一应用实例的域名信息和所述第一应用实例的地址信息。
  13. 根据权利要求11或12所述的方法，其特征在于，所述第一应用实例的策略信息包括以下一项或多项：
    所述第一应用实例的会话的相关策略信息、所述第一应用实例的策略与计费控制、所述第一应用实例的策略控制请求触发信息。
  14. 根据权利要求11至13中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一会话管理功能实体从第一用户面功能实体接收所述第一应用实例的业务使用量；
    所述第一会话管理功能实体向所述策略控制功能实体发送所述第一应用实例的业务使用量。
  15. 一种策略管理的方法，其特征在于，包括：
    第一用户面功能实体从第一会话管理功能实体接收第一应用实例的策略信息，其中，所述第一用户面功能实体是所述第一应用实例接入的用户面功能，所述第一应用实例用于向终端提供应用服务；
    所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理。
  16. 根据权利要求15所述的方法，其特征在于，所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务访问进行管理，包括：
    所述第一用户面功能实体根据所述第一应用实例的策略信息，对所述第一应用实例的业务使用量进行统计和上报，和/或，对所述第一应用实例执行带宽管理，和/或，对所述第一应用实例的业务服务质量提供保障。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述第一用户面功能实体向所述第一会话管理功能实体发送所述第一应用实例的业务使用量。
  18. 一种通信装置，其特征在于，包括用于实现如权利要求1至10中任一项所述的方法的功能的单元。
  19. 一种通信装置，其特征在于，包括用于实现如权利要求11至14中任一项所述的方法的功能的单元。
  20. 一种通信装置，其特征在于，包括用于实现如权利要求15至17中任一项所述的方法的功能的单元。
  21. 一种通信设备，其特征在于，包括：处理器和收发器，所述收发器用于接收计算机代码或指令，并传输至所述处理器，所述处理器运行所述计算机代码或指令，如权利要求1至17中任一项所述的方法。
  22. 一种通信系统，其特征在于，包括：
    执行如权利要求1至10中任一项所述方法的策略控制功能实体以及与所述策略控制功能实体通信的其他通信设备；或者
    执行如权利要求11至14中任一项所述方法的第一会话管理功能实体以及与所述第一会话管理功能实体通信的其他通信设备；或者
    执行如权利要求15至17中任一项所述方法的第一用户面功能实体以及与所述第一用户面功能实体通信的其他通信设备。
  23. 一种计算机可读存储介质，其特征在于，包括：
    所述计算机可读介质存储有计算机程序；
    所述计算机程序在计算机上运行时，使得计算机执行权利要求1至17中任一项所述的方法。
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