WO2018023644A1 - Procédé et dispositif de coordination de fonctions de réseau - Google Patents

Procédé et dispositif de coordination de fonctions de réseau Download PDF

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Publication number
WO2018023644A1
WO2018023644A1 PCT/CN2016/093419 CN2016093419W WO2018023644A1 WO 2018023644 A1 WO2018023644 A1 WO 2018023644A1 CN 2016093419 W CN2016093419 W CN 2016093419W WO 2018023644 A1 WO2018023644 A1 WO 2018023644A1
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Prior art keywords
network function
module
network
service module
control plane
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PCT/CN2016/093419
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English (en)
Chinese (zh)
Inventor
王远
马景旺
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华为技术有限公司
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Priority to PCT/CN2016/093419 priority Critical patent/WO2018023644A1/fr
Publication of WO2018023644A1 publication Critical patent/WO2018023644A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for coordinating network functions in the field of communications.
  • the network element is adopted in the Evolved Packet Core (EPC).
  • EPC Evolved Packet Core
  • MME Mobility Management Entity
  • S-GW Gateway
  • P-GW Packet Data Network Gateway
  • the network function of the current EPC is implemented by the service characteristics and processing logic that are solidified in the network element and the flow messages between the network elements, such as mobility management, bearer management, location management, and the like.
  • the access service of the user needs the MME, the S-GW, the P-GW, and other network elements in the network, such as a Policy and Charging Rules Function (PCRF) and a Home Subscriber Server (Home Subscriber Server). , HSS), etc. work together and are done through standardized business process logic.
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • the MME is the executive body of the coordinated network function.
  • all the network function requests related to the user equipment (User Equipment, UE) need to be aggregated to the MME, and the MME is Detect and coordinate network functions that provide services to the UE. Therefore, the MME needs to save the process information of the first network function currently provided for the UE, and all the scenarios of the other network functions while providing the first network function for the current UE, and formulate the network function in each scenario. Coordination strategy.
  • the MME may determine that the UE requests the network side to provide the second network function according to the correspondence between the preset message type and the network function, and the MME provides the first network for the UE according to the current network side. a function, and the second network function is different from a first network function currently serving the UE, determining a coordination policy for coordinating the first network function and the second network function, and coordinating the first network function according to the coordination policy This second network function.
  • the present invention provides a method and apparatus for coordinating network functions, capable of coordinating services for UEs Multiple network features.
  • the present invention provides a method of coordinating network functions, the method comprising:
  • the control plane interaction management function module receives a first request message, where the first request message includes an identifier of the user equipment UE, and is used to request to provide the first network function for the UE;
  • the control plane interaction management function module determines, according to the identifier of the UE, that the network side currently provides other network functions for the UE;
  • the control plane interaction management function module determines a coordination policy according to a network function service module that provides the first network function and a network function service module that provides the other network function, where the coordination policy is used to coordinate the first network function and the other network Features;
  • the control plane interaction management function module coordinates the first network function and the other network function according to the coordination policy.
  • control plane interaction management function module is capable of determining according to a network function service module that provides a first network function of a new request of the UE and a network function service module that is currently providing a second network function for the UE. Coordinating the coordination strategy of the first network function and the second network function, and coordinating the first network function and the second network function according to the coordination policy.
  • the control plane interaction management function module determines, according to the identifier of the UE, that the network side currently provides other network functions for the UE, including: the control plane interaction
  • the management function module searches the current service list according to the identifier of the UE, and obtains an identifier of the second network function service module, where the current service list includes an identifier of the at least one UE and a network function service module that provides services for the UE in the current service list.
  • the control plane interaction management function module determines, according to the search result, that the network side currently provides the other network function for the UE.
  • the current service list stores an identifier of at least one UE in the network and an identifier of a network function service module that provides a service for the UE in the current service list, and the control plane interaction management function module
  • a network function service module that provides a service for the UE is currently determined by the network side according to the identifier of the UE.
  • the control plane interaction management function module searches the current service list according to the identifier of the UE, and obtains the second network function. Before the identifier of the service module, the method further includes: the control plane interaction management function module receives a second request message, where the second request message includes the identifier of the UE, and uses Determining to provide the second network function for the UE; the control plane interaction management function module determines, according to the second request message, that the second network function service module provides the second network function; the control plane interaction management function module generates the A current service list, where the current service list includes a correspondence between an identifier of the UE and an identifier of the second network function service module.
  • the control plane interaction management function module is configured according to the network function service module that provides the first network function, and provides the The network function service module of the other network function, before determining the coordination policy, the method further includes: the control plane interaction management function module determines, according to the first request message, that the first network function service module provides the first network function; The face interaction management function module determines a coordination policy according to the network function service module that provides the first network function and the network function service module that provides the other network function, and the method includes: the control plane interaction management function module is configured according to the first network function service module And the second network function service module determines the coordination policy.
  • the control plane interaction management function module is configured according to the first network function service module and the second network function service module Determining the coordination policy, including: if the first network function service module is different from the second network function service module, the control plane interaction management module is configured according to the identifier of the first network function service module, the second network function service
  • the coordination of the module and the preset coordination policy table determine the coordination policy, and the coordination policy table includes a coordination strategy between any two network function service modules in the network.
  • control plane interaction management function module can coordinate the network functions provided by the two network function service modules according to a coordination strategy between any two network function service modules in a pre-defined network,
  • the coordination strategy is less complex and the coordination process is faster.
  • the current service list further includes an identifier of the second network function that is provided by the UE in the current service list
  • the coordination policy table further includes a coordination policy between each of the at least one network function provided by any network function service module in the network and another network function service module, and the control plane interaction management module is configured according to the Determining the coordination policy by the identifier of the network function service module, the identifier of the second network function service module, and the preset coordination policy table, including: the control plane interaction management function module is configured according to the identifier of the first network function service module, The identifier of the second network function service module, the identifier of the second network function, and the preset coordination policy table Set the coordination strategy.
  • the coordination policy table further includes a service of any network function provided by any network function service module in the network. a coordination policy between the intermediate state of the process and other network function service modules, wherein the control surface interaction management module is configured according to the identifier of the first network function service module, the identifier of the second network function service module, and a preset coordination policy table.
  • the method further includes: the control plane interaction management function module sends a third request message to the second network function service module, where the third request message is used to obtain a service flow intermediate of the second network function.
  • control plane interaction management function module receives the service flow intermediate state information of the second network function sent by the second network function service module according to the second request message; and the control plane interaction management module is configured according to the first network Identification of the function service module, identification of the second network function service module, and preset coordination
  • the control plane interaction management function module includes: the identifier of the first network function service module, the identifier of the second network function service module, the service flow intermediate state information of the second network function, and The preset coordination policy table determines the coordination strategy.
  • the control plane interaction management function module is configured according to the coordination The policy, the first network function and the second network function are coordinated, and the control plane interaction management function module sends a first indication message to the first network function service module according to the coordination policy, where the first indication message is used Instructing the first network function service module to perform or reject the first network function; or the control plane interaction management function module sends a second indication message to the second network function service module, where the second indication message is used to indicate the first The second network function service module suspends or terminates the second network function.
  • the method further includes: if the first network function service module is the same as the second network function service module The network function service module, the control plane interaction management function module forwards the first request message to the second network function service module.
  • the control plane interaction management function module may forward the first request to the second network function service module. a message, the second network function service module determines a coordination policy according to the first network function and the second network function, and coordinates the first network by using the coordination policy Function and the second network function.
  • the method for coordinating network functions provided by the present invention coordinates the network functions provided by different network function service modules through the control plane interaction management function module, and coordinates the different network functions provided by each network function service module, and the division of labor and cooperation will be less.
  • the workload of each module improves the efficiency of coordinating network functions and reduces the complexity of coordination strategies.
  • the coordination policy includes the following policies One of: continuing to perform the second network function and rejecting the other network function; after the second network function is completed, executing the other network function; suspending the second network function, and immediately executing the other network The function, after the other network function is completed, continues to execute or re-execute the second network function; terminates the second network function, and immediately executes the other network function.
  • an apparatus for coordinating network functions for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • an apparatus for coordinating network functions comprising: a receiver, a transmitter, a memory, a processor, and a bus system.
  • the receiver, the transmitter, the memory and the processor are connected by the bus system, the memory is for storing instructions for executing instructions stored by the memory, and controlling the transmitter to send signals, and when When the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a system for coordinating network functions comprising a control plane interaction management function module and a plurality of network function modules, each of the plurality of network function modules being configured to provide at least one for the UE A network function, the control plane interaction management function module is configured to perform the method in any of the above first aspect or the first aspect of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • FIG. 1 is an example of an EPC architecture of an evolved packet core network.
  • FIG. 2 is an architectural example of a system for coordinating network functions according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for coordinating network functions according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another method for coordinating network functions according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of an apparatus for coordinating network functions according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of an apparatus for coordinating network functions according to an embodiment of the present invention.
  • a user equipment refers to a terminal that obtains a service in the communication system, and these include, but are not limited to, Mobile Broad Band (MBB) type terminals, Machine Type Communication (MTC) type terminals, and Vehicle to Vehicle (V2V) type terminals.
  • MBB Mobile Broad Band
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • the UE can be connected to the core network through the access network, and the core network provides corresponding services for the user equipment.
  • the core network includes a Mobility Management Entity (MME) and a Serving Gateway (S-Service Gateway).
  • MME Mobility Management Entity
  • S-Service Gateway Serving Gateway
  • the control plane of the core network provides the UE with control plane services including registration access, location update, location switching, bearer establishment, and the like of the UE.
  • FIG. 2 is a structural example of a system for coordinating network functions according to an embodiment of the present invention, which is an example of a system architecture based on the network architecture shown in FIG. 1.
  • the core network control plane function is implemented by means of "network function + service architecture".
  • the architecture of the present invention cancels the setting of the traditional network element in the EPC architecture, and concatenates the network functions originally dispersed in the respective network elements, and reconstructs and reconstructs the network function as a basic unit.
  • Service control plane architecture is a structural example of a system for coordinating network functions according to an embodiment of the present invention, which is an example of a system architecture based on the network architecture shown in FIG. 1.
  • the core network control plane function is implemented by means of "network function + service architecture".
  • the architecture of the present invention cancels the setting of the traditional network element in the EPC architecture, and concatenates the network functions originally dispersed in the respective network elements, and reconstructs and reconstructs the network function as a basic unit.
  • network function means one or more relatively independent and complete
  • a logical function that can handle similar types of service requests from UEs or other entities in the network, and is responsible for executing the corresponding processing flow to complete the corresponding network functions. For example, the UE's registered access service, the UE's location update service, and the like.
  • the architecture shown in FIG. 2 mainly includes a control plane interaction management function module, a network function service module, and a service management framework module, and may further include a network function component module, etc., wherein the control plane interaction management function module may include a process. Coordination module and external interface module.
  • the functions of each component are explained below. It should be understood that the names of the components described herein are not unique, and for convenience of description, the respective components are described below by the above names.
  • the control plane interaction management function module is a unified management module responsible for the entire service control plane architecture, and may include a process coordination module and an external interface module.
  • the control plane interaction management function module can directly receive a request message for providing a network function to the user equipment, determine, according to the request message, a network function service module that provides the network function for the user equipment, and forward the request message to the network function service.
  • the module may receive a request message for providing a network function to the user equipment through the external interface module, and forward the request message to the process coordination module, and the process coordination module may determine, according to the request message, a network function that provides the network function for the user equipment.
  • the service module forwards the request message to the network function service module.
  • control plane interaction management function module may coordinate network functions provided by different network function service modules requested by the UE, or coordinate different network functions provided by the same network function service module requested by the UE.
  • the external interface function module is a unified external interface of the entire service control plane architecture, which handles message interaction with other network elements.
  • the external interface function module is responsible for implementing the interface functions between the functional modules (including the process coordination module, the network function service module, the network function component module, etc.) and the entity in the control plane architecture, including the establishment of the communication channel and the maintenance of the connection context. Protocol encapsulation and decapsulation of messages, forwarding and receiving of messages, etc.
  • the interface function of the external interface function module may be directly implemented by one or more of the foregoing process coordination module, the network function component module, and the network function service module.
  • the process coordination module is a unified coordination module of the entire service control plane architecture. It is responsible for selecting the network function service module according to the network function request from the UE or other network elements, and calling the corresponding network function service module through the service management framework to complete Service process for network functions. In this process, the process coordination module may also be responsible for completing multiple network functions initiated by the coordinated UE, for example, when the newly requested network function of the UE is different from the network function currently provided for the UE, the process association The tuning module can determine a coordination strategy that coordinates these two different network functions.
  • the network function service module is a basic component of the network function implemented by the entire service control plane architecture, and can also be called a network function unit.
  • the Network Function Service Module is a relatively independent and complete logical function entity that can perform the corresponding network functions according to network function requests. For example, the network function service module can complete the registration access service of the UE, the location update service of the UE, the handover service of the UE, and the service for formulating the network function conflict processing policy.
  • the network function service module may also be one or more network function component modules that are combined according to the service execution order.
  • the network function component module is a general-purpose network function unit abstracted and independent in the entire service control plane architecture, and can also be called a network function component unit.
  • the network function component module is typically invoked by one or more network function service modules to perform the specific general network functions required in the network functions implemented by the network function service module.
  • the security verification service, the bearer setup service may be completed by the network function component module, and may be invoked by the UE registration access service and the handover service of the UE or the like.
  • the network function component module can also be embedded in the network function service module.
  • the Service Management Framework module is the unit that performs the service management functions in the entire serviced control plane architecture.
  • Network functional units in the network such as network function service modules and network function component modules, can be flexibly configured into the service control plane architecture through service registration, so that other entities in the network can discover and invoke through the service management framework.
  • the service control plane architecture is different from the traditional network element in that the network function is dispersed in each network element, but the service processing logic of the network function and the service control logic are decoupled, and multiple networks in the traditional network element are decoupled.
  • the ability to coordinate functions is placed in a centralized control unit in the network, such as a process coordination module.
  • the service processing logic forms a plurality of network function service modules, each of the plurality of network function service modules is responsible for providing at least one network function, and the network functions provided by the plurality of network function service modules are mutually Not the same.
  • the distribution and coordination of network function requests are completed by the control plane interaction management function module.
  • the control plane interaction management function module can determine the corresponding network function coordination strategy according to different network function service modules corresponding to different network functions.
  • FIG. 1 and FIG. 2 A system for coordinating network functions according to an embodiment of the present invention is described above with reference to FIG. 1 and FIG. 2, and a method for coordinating network functions according to an embodiment of the present invention will be described in detail below with reference to FIG. 3 and FIG.
  • the method and apparatus for coordinating network functions in the embodiments of the present invention are not limited to the network architecture shown in FIG. 1 and FIG. 2, and the embodiments of the present invention may also be applied to other systems that are similar to network function services modularized or serviced. In the network architecture.
  • FIG. 3 is a schematic flowchart of a method for coordinating network functions according to an embodiment of the present invention. As shown in FIG. 3, the method 300 can be applied to the system 200 for coordinating network functions as shown in FIG. 2, and is executed by the control plane interaction management function module in the system 200, but the embodiment of the present invention is not limited thereto.
  • the control plane interaction management function module receives a first request message, where the first request message includes an identifier of the user equipment UE, and is used to request to provide the first network function for the UE.
  • control plane interaction management function module may be a process coordination module or an external interface function module as shown in FIG. 2 .
  • control plane interaction management function module may directly receive the first request message sent by the UE, or may receive the first request message that is forwarded by another control plane interaction management function module in the network, where the embodiment of the present invention is This is not limited.
  • the request message of the UE may be forwarded to the external interface function module by using an access network element, such as a wireless base station, and then processed by the external interface function module.
  • an access network element such as a wireless base station
  • the control plane interaction management function module can directly obtain the UE's request message by forwarding the access network element, such as a wireless base station.
  • the control plane interaction management function module may receive the first request message sent by the UE, and may also be a network function triggered by the network itself, for example, the UE is currently performing a session management (SM) network function.
  • the network function provided by the service module but at this time, due to the arrears of the UE, the HSS decides to cancel the UE registration, and initiates a Detach service.
  • the Detach service belongs to the Mobile Management (MM) network function service module.
  • MM Mobile Management
  • control plane interaction management function module may preset the correspondence between the message type of the request message and the network function, or may carry the network function requested by the request message in the request message, and the implementation of the present invention is implemented. This example does not limit this.
  • control plane interaction management function module may be an attach request according to the message type of the request message, and determine, according to the pre-stored correspondence, that the network function corresponding to the Attach request is an Attach service, and the control The face interaction management function module may also request the Attach service according to the request message in the cell in the request message, and determine that the requested network function is an Attach service, which is not limited by the present invention.
  • control plane interaction management function module can pre-store multiple network functions in the network. At least one network function corresponding to each network function service module in the service module, and the network functions provided by the plurality of network function service modules are different from each other, and the control plane interaction management function module may be based on the network requested in the request message Features.
  • control plane interaction management function module may pre-store a correspondence between each network function service module of the plurality of network function service modules on the network side and at least one network function that each network function service module can provide.
  • the relationship may also receive and store the network function provided by each of the network function service modules reported by each of the plurality of network function service modules.
  • each of the plurality of network function service modules and the at least one network function that each of the network function service modules can provide may be an MM network function service module.
  • MM network function service module responsible for providing mobility management related services such as Attach request, Tracking Area update (TAU) request, and handover request;
  • SM network function service module is responsible for providing PDN (Packet Data Network, PDN) connection (Connectivity)
  • PDN Packet Data Network, PDN
  • control plane interaction management function module determines, according to the identifier of the UE, that the network side currently provides other network functions for the UE.
  • control plane interaction management function module may search the current service list according to the identifier of the UE, and obtain an identifier of the second network function service module, where the current service list includes an identifier of the at least one UE and is in the current service list.
  • the UE provides the identifier of the network function service module of the service, and the control plane interaction management function module determines, according to the search result, that the network side currently provides the other network function for the UE.
  • Table 1 shows a current service list of an embodiment of the present invention, where the current service list includes an identifier of at least one UE that is served in the current network, that is, an identifier (ID), and is currently serving each UE.
  • ID an identifier
  • the identifier of the network function service module that is, the module ID.
  • control plane interaction management function module receives a request message requesting to provide the connectivity network function for the UE001, and determines that the Connectivity network function can be provided by the SM network function service module, where the control plane interacts.
  • the management function module may find the current service list according to the identifier of the UE 001. If the MM network function service module identifier corresponding to the UE 001 already exists in the current service list, it is determined that the network side currently provides the UE For this other network function.
  • the current service list stores an identifier of at least one UE in the network and an identifier of a network function service module that provides a service for the UE in the current service list, and the control plane interaction management function module
  • a network function service module that provides a service for the UE is currently determined by the network side according to the identifier of the UE.
  • the control plane interaction management function module may receive a second request message, where the second request message includes an identifier of the UE, and is used to request to provide the second network function for the UE;
  • the management function module may determine, according to the second request message, that the second network function service module provides the second network function; the control plane interaction management function module generates the current service list, where the current service list includes the identifier of the UE and the The correspondence between the identifiers of the second network function service modules.
  • the control plane interaction management module first saves the identifier of the at least one UE that is served in the current network and the identifier of the network function service module that is currently serving each UE in the at least one UE. After the service process provided by each network function service module ends, the control plane interaction management function module is notified to delete the corresponding correspondence in the current list, which is not limited by the embodiment of the present invention.
  • the control plane interaction management function module determines a coordination policy according to a network function service module that provides the first network function and a network function service module that provides the other network function, where the coordination policy is used to coordinate the first network function and the Other network features.
  • control plane interaction management function module may determine, according to the first request message, that the first network function service module provides the first network function for the UE, and the first network function service module and the second network function The service module determines the coordination strategy.
  • the control plane management function module can be based on the first network function service module
  • the identification, the identifier of the second network function service module, and a preset coordination policy table determine the coordination policy.
  • control plane interaction management function module may pre-configure the coordination policy table, or may request the coordination policy table from the network function service module that provides the different network function when the different network functions need to be coordinated.
  • the embodiments of the invention are not limited.
  • the coordination policy table may include a coordination policy between any two network function service modules in the network, such as the coordination policy table 1 of the embodiment of the present invention shown in Table 2.
  • the control plane interaction management function module receives the request that the first network function service module provides the first network function for the UE.
  • the control plane interaction management function module may search the coordination policy table 1 according to the identifier Module 002 of the second network function service module and the identifier Module 001 of the first network function service module, to obtain the first network function and the Coordination strategy for the second network function Strategy 2-1.
  • the current service list further includes an identifier of the second network function provided for the UE in the current service list, where the coordination policy table may further include at least one network function provided by any network function service module in the network.
  • the control plane interaction management function module may search according to the identifier Module 002 of the second network function service module, the identifier Function 2 of the second network function, and the identifier Module 001 of the first network function service module. Coordinating the policy table 2, obtaining the coordination strategy Strategy 2-2-1 of the first network function and the second network function.
  • the coordination policy table further includes a coordination policy between the service process intermediate state of any network function provided by any network function service module in the network and other network function service modules, as shown in Table 4.
  • Coordination Strategy Table 3 of the inventive embodiment is shown in Table 4.
  • the service flow intermediate state of the above network function service represents an intermediate state in a specific process process of executing the network function, for example, a security verification progress state in the Attach network function execution flow, and location update/acquisition subscription data is performed to the HSS.
  • the state, or the bearer establishment progress state is not limited in this embodiment of the present invention.
  • control plane interaction management function module may send a third request message to the second network function service module, where the third request message is used to obtain service flow intermediate state information of the second network function;
  • the management function module may receive service flow intermediate state information of the second network function sent by the second network function service module according to the second request message.
  • the control plane interaction management function module receives the request first.
  • the network function service module provides the first network function for the UE, and the control plane interaction management function module can be based on the identifier Module 002 of the second network function service module and the service flow intermediate state information Function 1 Status of the second network function.
  • the identifier Module 001 of the first network function service module searches the coordination policy table 3 to obtain the coordination strategy Strategy 2-1-2-1 of the first network function and the second network function.
  • the control plane interaction management function module coordinates the first network function and the other network function according to the coordination policy.
  • control plane interaction management function module is capable of being based on a network function service module that provides a first network function of a new request of the UE, and is currently being the UE And a network function service module that provides a second network function, determines a coordination policy that coordinates the first network function and the second network function, and coordinates the first network function and the second network function according to the coordination policy.
  • the coordination policy may include one of the following strategies:
  • control plane interaction management function module may send a first indication message to the first network function service module according to the coordination policy, where the first indication message is used to indicate that the first network function service module performs or rejects the The first network function; or the control plane interaction management function module sends a second indication message to the second network function service module, where the second indication message is used to indicate that the second network function service module suspends or terminates the second Internet function.
  • the control plane interaction management function module may The network function service module sends the first indication information, where the first indication information is used to indicate that the first network function is refused to be executed, and after receiving the first indication information, the first network function service module refuses to start the first network function flow. And sending a feedback message to the UE that the network side refuses to provide the first network function, and the processing methods of the other coordinated policies are similar, and are not described here.
  • the control plane interaction management function module forwards the node to the second network function service module. First request message.
  • control plane interaction management function module may forward the request message to the corresponding network function service module, and Coordinated processing is independently performed by the network function service module.
  • each of the plurality of network function service modules may pre-store a coordination policy of any two network functions that each network function service module is responsible for, and serve the network function according to the coordination policies. Coordination of network functions within the module, but this issue It is not limited to this.
  • the method for coordinating network functions provided by the present invention coordinates the network functions provided by different network function service modules through the control plane interaction management function module, and coordinates the different network functions provided by each network function service module, and the division of labor and cooperation will be less.
  • the workload of each module improves the efficiency of coordinating network functions and reduces the complexity of coordination strategies.
  • control plane interaction management function module may indicate the first network function service module and the second network function service module by using the first indication message or the service primitive carried by the second message, where the embodiment of the present invention does not Limited to this.
  • the service primitive may be a service primitive.
  • Starting the service primitive means that the control plane interaction management function module initiates a new network function service module, and the specific format is (request message, start reason value), and is used for Instructing the network function service module to initiate the request or reject the request, the start primitive includes: a request message and a start cause value, the cause value being defined by the control plane interaction management function module according to the network function conflict process.
  • Normal means that the reason for initiating the network function service module is that it needs to process the network function request normally and start the service process; rejecting (Reject) the reason for initiating the network function service module is to reject the service request,
  • the network function service module generates a reject request message notifying that the entity service that sent the original request is rejected.
  • the network function service module then discards the service request.
  • the service primitive may be a drop service primitive
  • the drop service primitive refers to the control plane interaction management function module terminating the network function service module currently being executed.
  • the specific format is (UE identifier, the cause value of the discard), and is used to indicate that the network function service module currently being executed is terminated, and the cause value is defined by the control plane interaction management function module according to the coordination policy. For example, a service conflict occurs with the second service request, resulting in termination.
  • the currently functioning network function service module terminates the process related to the UE according to the identifier of the UE, and discards the original request and any changes that have been made, and generates an abnormality indication information according to the termination cause value. And forward the message to the entity that sent the original service request.
  • the service primitive may be a deferred service primitive, and the deferred service primitive refers to the control plane interaction management function module indicating that the currently executing network function service module suspends the execution of the process.
  • the specific format is (UE identification).
  • the currently executing network function service module suspends the process related to the UE according to the identifier of the UE, but retains the original request and the changed.
  • the service primitive can re-execute the service primitive and re-execute the service primitive allegation
  • the interface interaction management function module indicates that the network function service module that has been temporarily suspended is restarting the process execution.
  • the specific format is (UE ID, restart identifier). There are two possible values for restarting the identifier. One is to instruct the network function service module to continue the execution process from the suspended intermediate state; the other is to instruct the network function service module to abandon the changes that have been made, according to the original service request. Re-execute from the beginning of the process.
  • control plane interaction management function module may initiate a start service primitive to the first network function service module corresponding to the newly received first request message, where the first request message is included in the service primitive, and Specify the reason value as Reject.
  • the first network function service module generates a reject request message after receiving the service primitive, and notifies the UE that sent the request, and then discards the service request. And returning a notification message that the rejection process has been completed to the control plane interaction management function module.
  • control plane interaction management function module may initiate a deferred service primitive by the second network function service module currently serving the UE, where the service primitive includes the identifier of the UE; the second network function service module After receiving the service primitive, the process related to the UE is suspended according to the identifier of the UE, but the original request and the changed are retained, and the delay confirmation message is returned to the control plane interaction management function module; the control plane interaction management After receiving the delay confirmation message, the function module marks the current service list of the UE as suspended execution.
  • control plane interaction management function module can initiate a new network function service module; the control plane interaction management function module is based on The newly received first request message initiates a start service primitive to the first network function service module corresponding to the first network function requested by the first request message, includes the first request message in the service primitive, and specifies The reason value is Normal, indicating that the service process is initiated normally; the first network function service module receives the service.
  • the control plane interaction management function module After the primitive, returning the start confirmation information to the control plane interaction management function module, and starting the execution process to process the service request; the control plane interaction management function module saves the UE identifier and the identifier of the first network function service module as the current service of the UE.
  • the first network function service module completes the process processing or encounters abnormal termination, and sends a notification message of the first network function request processing success or failure to the control plane interaction management function module; the control plane interaction management function module receives the notification After the message, delete the current service entry of the UE, and check whether there is a current service list marked as deferred execution.
  • the control plane interaction management function sends a re-execution service primitive to the second network function service module, where the UE's identity and restart identifier are included in the service primitive.
  • the restart identifier has two possible values, one is to indicate that the network function service module continues to execute the process from the suspended intermediate state; the other indicates that the network function service module gives up the The changes are re-executed from the beginning of the process based on the original service request.
  • the value of the identifier in the message is determined by a predefined policy action; after receiving the service primitive, the second network function service module returns a re-execution confirmation message to the control plane interaction management function module, and according to the identifier Determining how to restart the execution process; after receiving the re-execution confirmation message returned by the network function service module, the control plane interaction management function module saves the UE ID and the identifier of the second network function service module as the current service list of the UE .
  • FIG. 4 is a schematic flowchart of a method for coordinating network functions according to an embodiment of the present invention.
  • the UE initiates an Attach request to the control plane interaction management function module, where the Attach request carries the identifier of the UE.
  • control plane interaction management function module may pre-store a correspondence between a message type of the request message and a network function, and the control plane interaction management function module may determine, according to the message type of the Attach request, that the UE requests the network side. Provide an Attach service.
  • control plane interaction management function module pre-stores the MM network function service module and the SM network function service module in the current network, wherein the MM network function service module is responsible for processing the Attach request, the tracking area update request, the Detach request, and the like. Sex management related request; SM network function service module is responsible for handling PDN connection request, bearer setup request, bearer update request and other requests related to session management.
  • the control plane interaction management function module determines, according to the Attach request, that the MG network function service module processes the Attach request of the UE.
  • control plane interaction management function module may pre-store a correspondence between the network function service module and the service request, and the control plane interaction management function module may determine, according to the Attach request of the UE, that the MM network function service module provides the Attach service.
  • the control plane interaction management function module saves a correspondence between the identifier of the UE and the identifier of the MM network function service module, where the correspondence relationship is used to indicate that the MM network function service module is serving the UE.
  • the control plane interaction management function module sends the Attach request initiated by the UE to the MM network function service module.
  • the MM network function service module provides the Attach service to the UE.
  • the control plane interaction management function module determines, according to the PDN connection establishment request, that the PDN connection establishment request of the UE is processed by the SM network function service module.
  • the control plane interaction management function module searches for the previously stored identity of the UE and the identifier of the MM network function service module according to the identifier of the UE, and learns that the MM network function service module is serving the UE.
  • the control plane interaction management function module determines the first coordination policy according to the identifier of the MM network function service module, the identifier of the SM network function service module, and the preset coordination policy table, where the preset coordination policy table includes A coordination strategy between the MM network function service module and the SM network function service module.
  • the control plane interaction management function module coordinates the Attach service and the PDN connection establishment service according to the first coordination policy.
  • the first coordination policy may be to continue to perform the MM network function and refuse to perform the SM network function.
  • the control plane interaction management module may directly discard the PDN connection establishment request of the UE according to the coordination policy, or may send the PDN connection establishment request of the UE to the SM network function, and indicate that the SM network function needs to reject the request, and generate a reject message by the SM network function. And return to the UE.
  • the control plane interaction management function module determines, according to the tracking area update request, that the tracking area update request of the UE is processed by the MM network function service module.
  • the control plane interaction management function module searches for the previously stored identity of the UE and the identifier relationship of the MM network function service module according to the identifier of the UE, and learns that the current MM network function service module provides an Attach service for the UE. In progress, both the Attach service and the tracking area update service are provided by the MM network function service module.
  • the control plane interaction management function module forwards the tracking area update request to the MM network function service module.
  • the MM network function service module determines a second coordination policy according to the Attach request and the tracking area update request, where the preset policy table includes any two network functions provided by the MM network function service module. Coordination strategy.
  • the MM network function service module coordinates the Attach service and the tracking area update service according to the second coordination policy.
  • S406-S410 and S411-S416 are processes in which the current MM network function service module provides an Attach service for the UE, and a processing method for receiving different service requests is performed, and the execution order is in no particular order.
  • FIG. 5 illustrates an apparatus 500 for coordinating network functions in accordance with an embodiment of the present invention.
  • the apparatus 500 may be a control plane interaction management function module in the system 200 for coordinating network functions as shown in FIG. 2, which is not limited in this embodiment of the present invention.
  • the apparatus 500 includes:
  • the receiving unit 510 is configured to receive, by the control plane interaction management function module, a first request message, where the first request message includes an identifier of the user equipment UE, and is used to request to provide the first network function for the UE;
  • the determining unit 520 is configured to: according to the identifier of the UE in the first request message received by the receiving unit 510, determine that the network side currently provides other network functions for the UE; the control plane interaction management function The module determines a coordination policy according to the network function service module that provides the first network function and a network function service module that provides the other network function, where the coordination policy is used to coordinate the first network function and the other network function;
  • the processing unit 530 is configured to coordinate, by the control plane interaction management function module, the first network function and the other network function according to the coordination policy determined by the determining unit 520.
  • the determining unit is specifically configured to:
  • the control plane interaction management function module searches the current service list according to the identifier of the UE, and obtains an identifier of the second network function service module, where the current service list includes an identifier of the at least one UE and a network that provides services for the UE in the current service list.
  • the identifier of the function service module; the control plane interaction management function module determines, according to the search result, that the network side currently provides the other network function for the UE.
  • the device further includes a generating unit, where the receiving unit is further configured to: at the control plane, the interaction management function module searches the current service list according to the identifier of the UE, to obtain a second network function service module.
  • the second request message is received, where the second request message includes the identifier of the UE, and is used to request the second network function for the UE;
  • the determining unit is further configured to use the control plane interaction management function module according to the a second request message, determining that the second network function service module provides the second network function;
  • the generating unit is configured to generate, by the control plane interaction management function module, the current service list, where the current service list includes the identifier of the UE and the first The correspondence between the identifiers of the two network function service modules.
  • the determining is specifically: before the control plane interaction management function module determines the coordination policy according to the network function service module that provides the first network function and the network function service module that provides the other network function, according to the Determining, by the request message, that the first network function service module provides the first network function; and the control plane interaction management function module determines the coordination policy according to the first network function service module and the second network function service module.
  • the determining unit is specifically configured to: if the first network function service module is different from the second network function service module, the control plane interaction management module is configured according to the identifier of the first network function service module, the second network.
  • the coordination of the function service module and the preset coordination policy table determine the coordination policy, and the coordination policy table includes a coordination strategy between any two network function service modules in the network.
  • the current service list further includes an identifier of the second network function that is provided by the UE in the current service list
  • the coordination policy table further includes at least one network function provided by any network function service module in the network.
  • a coordination policy between each network function and another network function service module, the determining unit is specifically configured to use the identifier of the first network function service module and the identifier of the second network function service module And the identifier of the second network function and the preset coordination policy table determine the coordination policy.
  • the coordination policy table further includes a coordination policy between a service process intermediate state of any network function provided by any network function service module in the network and another network function service module
  • the apparatus further includes a sending unit, where The sending unit is configured to send a third request message to the second network function service module, where the third request message is used to obtain the service flow intermediate state information of the second network function;
  • the receiving unit further uses The control plane interaction management function module receives the service flow intermediate state information of the second network function sent by the second network function service module according to the second request message;
  • the determining unit is further configured to use the control plane interaction management function module according to the Determining the association of the identifier of the first network function service module, the identifier of the second network function service module, the service flow intermediate state information of the second network function, and the preset coordination policy table Tune strategy.
  • the device further includes a sending unit, where the sending unit is configured to: if the first network function service module and the second network function service module are the same network function service module, the control plane interaction management function module The second network function service module forwards the first request message.
  • the processing unit is configured to send, by the control plane interaction management function module, a first indication message to the first network function service module according to the coordination policy, where the first indication message is used to indicate the first network function.
  • the service module performs or rejects the first network function; or the control plane interaction management function module sends a second indication message to the second network function service module, where the second indication message is used to indicate that the second network function service module hangs Start or terminate the second network function.
  • the coordination policy includes one of the following policies: continuing to perform the second network function, and rejecting the other network function; after the second network function is completed, executing the other network function; suspending the first Second network function, and immediately execute the other network function, after the other network function is completed, continue to execute or re-execute the second network function; terminate the second network function, and immediately execute the other network function.
  • the apparatus 500 herein is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group). Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • the device 500 may be specifically the control plane interaction management function module in the foregoing embodiment, and the device 500 may be configured to perform the interaction with the control plane interaction management function module in the foregoing method embodiment.
  • the various processes and/or steps are not repeated here to avoid repetition.
  • FIG. 6 shows an apparatus 600 for coordinating network functions in accordance with an embodiment of the present invention.
  • the apparatus 600 includes a processor 610, a transmitter 620, a receiver 630, a memory 640, and a bus system 650.
  • the processor 610, the transmitter 620, the receiver 630 and the memory 640 are connected by a bus system 650 for storing instructions for executing instructions stored in the memory 640 to control the transmitter 620.
  • Send a signal Transmitter 620 and receiver 630 may be communication interfaces, and specific transmitter 620 may be an interface for receiving data and/or instructions, and receiver 630 may be an interface for transmitting data and/or instructions, no longer Specific forms of the transmitter 620 and the receiver 630 are exemplified.
  • the device 600 may be specifically the control plane interaction management function module in the foregoing embodiment. And can be used to perform various steps and/or processes corresponding to the control plane interaction management function module in the foregoing method embodiment.
  • the memory 640 can include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 610 can be configured to execute instructions stored in the memory, and when the processor executes the instructions, the processor can execute the steps corresponding to the control plane interaction management function module in the above method embodiment.
  • the processor may be a central processing unit (CPU), and the processor may also be other general purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in a memory, and the processor executes instructions in the memory, in combination with hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division, and may be implemented in actual implementation.
  • multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, 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 objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

La présente invention concerne un procédé et un dispositif de coordination de fonctions de réseau. Le procédé de coordination de fonctions de réseau comprend : la réception, par un module de fonction de gestion d'interaction de plan de commande, d'un premier message de demande, le premier message de demande comprenant un identifiant d'un équipement d'utilisateur (UE) et étant utilisé pour demander la fourniture d'une première fonction de réseau pour l'UE ; la détermination, par le module de fonction de gestion d'interaction de plan de commande, en fonction de l'identifiant de l'UE, qu'un côté réseau est en train de fournir d'autres fonctions de réseau pour l'UE ; la détermination, par le module de fonction de gestion d'interaction de plan de commande, d'une politique de coordination en fonction d'un module de service de fonction de réseau fournissant la première fonction de réseau et un module de service de fonction de réseau fournissant les autres fonctions de réseau, la politique de coordination étant utilisée pour coordonner la première fonction de réseau et les autres fonctions de réseau ; la coordination, par le module de fonction de gestion d'interaction de plan de commande, de la première fonction de réseau et des autres fonctions de réseau conformément à la politique de coordination. Le procédé et le dispositif de coordination de fonctions de réseau de la présente invention permettent de coordonner une pluralité de fonctions de réseau desservant un UE.
PCT/CN2016/093419 2016-08-05 2016-08-05 Procédé et dispositif de coordination de fonctions de réseau WO2018023644A1 (fr)

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CN1905489A (zh) * 2006-08-08 2007-01-31 华为技术有限公司 通信网络中业务能力交互管理系统及其方法
CN1973526A (zh) * 2004-04-07 2007-05-30 奥林奇私人通讯服务有限公司 事件处理系统
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CN102217357A (zh) * 2011-05-20 2011-10-12 华为技术有限公司 用于控制业务的方法及其装置和系统
CN103314617A (zh) * 2011-01-14 2013-09-18 交互数字专利控股公司 在电路交换回退和切换期间的本地因特网协议接入连接处理

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Publication number Priority date Publication date Assignee Title
CN1973526A (zh) * 2004-04-07 2007-05-30 奥林奇私人通讯服务有限公司 事件处理系统
CN1905489A (zh) * 2006-08-08 2007-01-31 华为技术有限公司 通信网络中业务能力交互管理系统及其方法
CN101855883A (zh) * 2007-10-19 2010-10-06 皇家Kpn公司 用于管理服务交互的系统
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