WO2017193789A1 - 一种按需为终端选择移动性管理机制的方法及装置 - Google Patents

一种按需为终端选择移动性管理机制的方法及装置 Download PDF

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Publication number
WO2017193789A1
WO2017193789A1 PCT/CN2017/081349 CN2017081349W WO2017193789A1 WO 2017193789 A1 WO2017193789 A1 WO 2017193789A1 CN 2017081349 W CN2017081349 W CN 2017081349W WO 2017193789 A1 WO2017193789 A1 WO 2017193789A1
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terminal
network
mobility
mobility support
support level
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English (en)
French (fr)
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陈山枝
王胡成
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for selecting a mobility management mechanism for a terminal as needed.
  • 3GPP TR 22.891 future 5G networks need to provide mobility support with different requirements.
  • different terminals have different mobile paradigms, for example, some terminals access the network in high-speed mobile, while others are nomadic access networks or static access networks; different services It also has different mobility support requirements. For example, some services want to reduce the interruption and packet loss rate in the service transmission process. Therefore, the network is required to shield the application layer from mobility events, including keeping the IP address unchanged during the handover process. Some applications can use application layer means to support business continuity. Based on these considerations, 3GPP proposes on-demand mobility support.
  • SA2 proposes a method for on-demand mobility management (3GPP TR 23.799), which specifically requires a mobility management control function in the network, which can acquire the mobility level of the terminal based on information such as subscription of the terminal. Based on the mobility level of the terminal, the mobility management control function configures the mobility management sub-function in the network, activates the mobility management sub-function that needs to provide services to the terminal, thereby providing a tailor-made mobility management mechanism for the terminal.
  • 3GPP TR 23.799 3GPP TR 23.799
  • the existing solution for on-demand mobility support requires all mobility management sub-functions in the network to increase the complexity of the network.
  • the mobility management control function in the network needs to determine which mobility managers are activated according to the mobility support level.
  • the function increases the network configuration process, especially for a large number of terminals that require different mobility support, increasing the complexity of mobility management.
  • the embodiments of the present disclosure provide a method and apparatus for selecting a mobility management mechanism for a terminal as needed, and solving the solution of the existing on-demand mobility support needs to be complicated.
  • Technical issues with network function configuration
  • a method for selecting a mobility management mechanism for a terminal on demand includes: determining a mobility support level required by the terminal; and notifying according to the determined mobility support level required by the terminal
  • the network selection function selects a network or network function capable of supporting the required mobility support level to provide corresponding mobility management to the terminal.
  • the method before the determining the mobility support level required by the terminal, the method further includes: receiving a request that the network selection function determines a mobility support level required by the terminal.
  • the method further includes: determining whether the mobility management function of the current serving terminal is capable of providing the terminal with mobility support required by the terminal; if not, the mobility required by the terminal to perform mobility The choice of management functions.
  • the method further includes: determining whether the network accessed by the terminal is capable of providing the terminal with mobility support required by the terminal; if not, performing reselection of the target network.
  • performing the reselection of the target network including: sending a request message to the network selection function, reselecting the target network for the terminal, where the request message carries at least a mobility support level required by the terminal; or The required mobility support level of the terminal performs target network selection; determining an identifier of a target network capable of providing a required mobility support level, and providing an identifier of the target network to the network selection function.
  • the network or network function supporting the required mobility support level includes any one of the following: a network slice supporting a required mobility support level; and a mobility management function supporting a required mobility support level.
  • the network slice or mobility management function is generated according to a mobility level that needs to be supported in the network.
  • the determining the mobility support level required by the terminal includes: determining a mobility support level required by the terminal according to the terminal information and/or the service type requested by the terminal.
  • the determining the mobility support level required by the terminal includes: determining a mobility support level required by the terminal when the terminal is attached to the network; and determining mobility required by the terminal when the terminal performs location update. Level; and/or determine the level of mobility support required by the terminal when the terminal initiates a connection request.
  • the device of the management mechanism includes: a determining module, configured to determine a mobility support level required by the terminal; and a notification module, configured to notify the network selection function to support the required mobility according to the determined mobility support level required by the terminal Support level network or network functions to provide appropriate mobility management to the terminal.
  • the apparatus further includes: a receiving module, configured to receive a request that the network selection function determines a mobility support level required by the terminal.
  • the device further includes: a determining module, configured to determine whether a mobility management function of the current serving terminal is capable of providing the terminal with mobility support required by the terminal; and a processing module, configured to move in the current serving terminal When the sexual management function is unable to provide the terminal with the mobility support required by the terminal, the required mobility support level of the terminal performs the selection of the mobility management function.
  • a determining module configured to determine whether a mobility management function of the current serving terminal is capable of providing the terminal with mobility support required by the terminal
  • a processing module configured to move in the current serving terminal When the sexual management function is unable to provide the terminal with the mobility support required by the terminal, the required mobility support level of the terminal performs the selection of the mobility management function.
  • the device further includes: a determining module, configured to determine whether the network accessed by the terminal is capable of providing mobility support required by the terminal to the terminal; and the reselecting module is configured to not provide the terminal to the network When the mobility support required by the terminal is described, the reselection of the target network is performed.
  • the reselection module is further configured to: send a request message to the network selection function, and reselect the target network for the terminal, where the request message carries at least a mobility support level required by the terminal; or according to the The required mobility support level of the terminal performs target network selection; determining an identity of the target network capable of providing the required mobility support level, and providing the identity of the target network to the network selection function.
  • the network or network function supporting the required mobility support level includes any one of the following: a network slice supporting a required mobility support level; and a mobility management function supporting a required mobility support level.
  • the network slice or mobility management function is generated according to a mobility level that needs to be supported in the network.
  • the determining module is further configured to: determine, according to the terminal information and/or the service type requested by the terminal, a mobility support level required by the terminal.
  • the determining module is further configured to: when the terminal is attached to the network, determine a mobility support level required by the terminal; when the terminal performs location update, determine a mobility support level required by the terminal; and/or When the terminal initiates a connection request, it determines the mobility support level required by the terminal.
  • a mobility support determining function is further provided.
  • one mobility support determination function is shared by multiple networks, or one mobility support determination function is included in one network.
  • an apparatus for selecting a mobility management mechanism for a terminal including: a memory, a processor, and a transceiver, wherein the processor is configured to read a program in the memory, Performing the following process: determining a mobility support level required by the terminal; according to the determined mobility support level required by the terminal, notifying the network selection function to select a network or network function capable of supporting the required mobility support level to the terminal Corresponding mobility management is provided; the transceiver is configured to receive and transmit data.
  • One technical solution of the foregoing technical solutions has the following advantages or advantages: first, determining a mobility support level required by the terminal, and then notifying the network selection function selection to support the required mobility according to the determined mobility support level required by the terminal.
  • Support level network or network functions to provide corresponding mobility management to terminals, simplifying the composition of different networks by implementing different levels of mobility support in different networks; and supporting different mobility support requirements through different networks.
  • Terminal services avoid complicated network function configuration and effectively reduce the complexity of mobility management.
  • FIG. 1 is a flow chart of a method for selecting a mobility management mechanism for a terminal as needed in some embodiments of the present disclosure
  • FIG. 2 is a schematic diagram of dividing an operator network into networks implementing different mobility support levels in some embodiments of the present disclosure
  • 3A and 3B are schematic diagrams of network architectures of some embodiments of the present disclosure.
  • FIG. 4 is a schematic diagram of a process for a terminal to initiate connection establishment or location update in an attached network according to some embodiments of the present disclosure
  • FIG. 5 is a schematic diagram of a network selection function for selecting a target network according to a mobility support level required by a terminal according to some embodiments of the present disclosure
  • FIG. 6 is a schematic diagram of a process in which a terminal initiates a connection establishment or a location update occurs in some embodiments of the present disclosure
  • FIG. 7 is a schematic diagram of an apparatus for selecting a mobility management mechanism for a terminal as needed according to some embodiments of the present disclosure
  • FIG. 8 is a schematic diagram of an apparatus for selecting a mobility management mechanism for a terminal as needed according to some embodiments of the present disclosure.
  • embodiments of the present disclosure may be implemented as a system, apparatus, device, method, or computer program product.
  • embodiments of the present disclosure may be embodied in the form of full hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.
  • a method and apparatus for selecting a mobility management mechanism for a terminal as needed are proposed.
  • the operator may mine the user terminal in the network through the user information acquired by the operation support system, the terminal information, the service information provided by the service network or the third party application, the communication model of the user, and the like. Mobility model (or regularity), characteristics of mobile applications. Then based on the obtained information obtained, it is possible to determine the mobility support level that needs to be provided in the network, such as high, medium or low level mobility support.
  • the operator's network management system divides its network according to the required mobility support level, for example, network slicing, so that different networks implement different levels of mobility support.
  • the required mobility support level for example, network slicing
  • multiple levels of mobility support may be implemented in a network.
  • a mobility support level determining function (also referred to as a mobility support level determining function entity) in the network, such as a mobility level determining function (also referred to as a mobility level determining function entity)
  • a mobility support level required by the terminal is determined according to an access request of the terminal, such as an attach request, a location update request, a connection establishment request, and the like.
  • a network selection function (also referred to as a network selection function entity) selects a network for the terminal that can provide the required mobility support.
  • an execution body of the method may be a mobility support level determination function (also referred to as mobility level determination). Function), including the following steps.
  • Step S110 determining a mobility support level required by the terminal
  • on-demand mobility support concept is proposed in 3GPP TR 23.799, that is, the network provides different mobility support based on different characteristics of terminals and services.
  • the specific functions of the above mobility support may include any one or more of the following: mobility Context management, location tracking (location update), paging, handover control, path optimization (anchor reselection), reachability management, and of course not limited to this.
  • the mobility support level may be divided into high-level mobility support, medium-level mobility support, and low-level mobility support, and the mobility support level is classified based on the priority of the terminal or the service. Or, based on the specific function of the mobility support level, it is of course understood that the specific level division mode of the mobility support level is not limited in this embodiment.
  • the mobility support level required by the terminal may be determined according to the terminal information and/or the service type requested by the terminal.
  • the mobility support level required for determining the terminal when the condition of any one or more of the following conditions is met, the mobility support level required for determining the terminal is triggered, and the specific conditions are as follows: when the terminal is attached to the network, determine the mobility support level required by the terminal. Determining the mobility support level required by the terminal when the terminal performs location update; and/or determining the mobility support level required by the terminal when the terminal initiates the connection request.
  • the mobility support level determining function may receive a request for the network selection function to determine the mobility support level required by the terminal. That is, the mobility support level determination function is triggered by the network selection function to determine the mobility support level required by the terminal, and is of course not limited thereto.
  • Step S120 The network selection function is notified to select a network or network function capable of supporting a required mobility support level according to the determined mobility support level required by the terminal, to provide corresponding mobility management to the terminal.
  • the above network or network features that support the required mobility support level include any of the following: network slicing that supports the required mobility support level and a set of mobility management features that support the required mobility support level (also known as mobile The sexual management function entity) is of course not limited to this.
  • the network slicing or mobility management functions described above can be generated based on the level of mobility that needs to be supported in the network.
  • the terminal it is determined whether the mobility management function of the current serving terminal can provide the terminal with the mobility support required by the terminal; if not, the terminal needs the mobility support level to perform the mobility management function selection. .
  • the network accessed by the terminal can provide the terminal with mobility support required by the terminal; if so, the terminal is provided with corresponding mobility management; if not, the target network is reselected.
  • the reselection of the target network is performed by:
  • Method 1 Send a request message to the network selection function, and the network selection function reselects the target network for the terminal, and the request message carries at least the mobility support level required by the terminal;
  • Manner 2 performing target network selection according to the required mobility support level of the terminal; determining an identifier of the target network capable of providing the required mobility support level, providing the identifier of the target network to the network selection function, and the network selection function according to the target network Identify the target network.
  • first determining a mobility support level required by the terminal, and then notifying the network selection function to select a network or network function capable of supporting the required mobility support level according to the determined mobility support level required by the terminal Provide corresponding mobility management to terminals, simplifying the composition of different networks by implementing different levels of mobility support in different networks; and avoiding complex network function configuration for different mobility support terminal services through different networks. , effectively reducing the complexity of mobility management.
  • FIG. 2 is introduced to divide the carrier network into networks that implement different mobility support levels.
  • the user information acquired by the operator, the terminal information, the service information provided by the service network or the third-party application, the communication model of the user, etc. excavate the mobility model (or law) of the user terminal in the network, and the mobile application Characteristics. Based on the acquired information, determine the mobility support level that needs to be provided in the network, such as high, medium, and low level mobility support, and save it in the subscription attribute of the end user. As shown in FIG. 2, the operator deploys a mobile description system to perform discovery of the terminal mobility model and description of the mobile service, thereby determining that mobility support needs to be provided in the network.
  • the operational management of the operator's network can determine how to provide the required mobility support. If the network slice manager of the operation management layer determines that a new network slice needs to be created, the network slice manager needs to request the network slice description system to perform a description of the network slice to be established.
  • the network slice description system is used to define all network functions and interconnections of the network to be established.
  • the system can add a mobility management functionality description (MMF description, mobility management functionality description) function to perform detailed definition of all mobility management sub-functions, and assist network segmentation. Describe the function to define the network slice. After the network slice description function completes the slice description, the network slice manager is notified to trigger the generation of the network slice.
  • MMF mobility management functionality description
  • the operator or MMF function may define the following types of mobility management mechanisms:
  • control plane mobility management function and the user plane mobility anchor point are centrally deployed in the core network to support session continuity;
  • control plane mobility management function and the user plane mobility anchor point are centrally deployed in the core network, and session continuity is not supported;
  • control plane mobility management function is deployed centrally on the core network, and the user plane mobility anchor point is deployed close to the user location to support session continuity;
  • the control plane mobility management function is deployed centrally on the core network.
  • the user plane mobility anchor is deployed close to the user location and does not support session continuity.
  • control plane mobility management function is deployed on the access network side, and the user plane mobility anchor point deploys the core network to support session continuity;
  • control plane mobility management function is deployed on the access network side, and the user plane mobility anchor point is deployed close to the user location to support session continuity;
  • control plane mobility management function is deployed on the access network side, and the user plane mobility anchor point is deployed close to the user location, and session continuity is not supported.
  • the specific mobility management function is shown in Figure 2. It may include: mobility context management Mobility context management; location tracking Location tracking; paging paging; handover control Handover control; path optimization Path optimization; Reachability mangement.
  • the network slice manager requests the orchestration control layer to perform specific generation of the network slice, for example, requesting the MANO (Management and Orchestration) system to generate a specific network slice. After the network slice is generated, the network slice manager is also responsible for managing its life cycle, such as modifying or revoking the network slice.
  • MANO Management and Orchestration
  • the network slicing framework enables the network to generate network slices that support different mobility levels, such that terminals with different mobility requirements may be served by different network slices, for example, when receiving a small data transmission request from a static smart meter device, Selecting the control plane mobility management function and the user plane mobility anchor point for the terminal to be deployed centrally on the core network, the network that does not support the session continuity, does not need to support location tracking; when receiving the IMS call service initiated by the SMART phone (smart phone) When the terminal selects the control plane mobility management function and the user plane mobility anchor point is deployed centrally on the core network, the network supporting the session continuity does not need to support path optimization (the anchor point is unchanged).
  • the mobility level determination function is implemented in each network.
  • the mobility level determination function is located in the corresponding network, see FIG. 3A; mobility level determination.
  • Features may be shared by multiple networks, see Figure 3B. The purpose is to determine the mobility support level required by the current terminal according to the mobile information and service of the terminal after the terminal accesses the network, thereby selecting a network capable of providing a suitable mobility management mechanism or function for the terminal.
  • the terminal is attached to the network process, and the network selection function selects the target network according to the type of the terminal, signing, and the like.
  • connection establishment or location update in a connected network is described in conjunction with FIG. 4, and the specific steps are as follows:
  • Step S401 The UE sends an access request, such as a location update request, a connection establishment request, and the like, in the attached network.
  • an access request such as a location update request, a connection establishment request, and the like, in the attached network.
  • Step S402 After receiving the request from the terminal, the attached network determines the mobility support level currently required by the terminal by the mobility level determining function in the network, and determines whether the network can provide the required mobility support to the terminal. If so, provide corresponding mobility management to the terminal;
  • step S403 it is determined that the attached network cannot provide the required mobility support to the terminal, and the mobility level determining function requests the network selection function to reselect the target network, and the request message carries at least the mobility support level required by the terminal. Or the mobility level determination function performs target network selection according to the required mobility support level, step S404 skips, and proceeds to step S405.
  • Step S404 The network selection function reselects the target network according to the received information, and responds.
  • Step S405 triggering and performing a handover or location update process to redirect the terminal to the target network.
  • the network selection function is required according to the terminal.
  • the mobility support level selects the target network.
  • the mobility level determination function is independent of each network.
  • the network selection function selects an appropriate target network according to the mobility level currently required by the terminal. It is of course understood that the mobility level determination function may be set to a functional entity with the network selection function.
  • the terminal is attached to a network-related related technology, and the network selection function selects a target network according to the type of the terminal, signing, and the like.
  • Step S601 The network selection function is based on an access request of the terminal, such as a connection establishment request, a location update request, and the like;
  • Step S602 The network selection function requests the mobility level determining function to determine a mobility support level required by the terminal;
  • Step S603 The mobility level determining function determines, according to the terminal information, for example, the terminal type, the terminal location, and/or the service type requested by the terminal, the mobility support level currently required by the terminal, and returns;
  • Step S604 The network selection function selects, according to the mobility support level required by the terminal for the access, the target network that can provide the required mobility support.
  • Step S605 If the target network is a network to which the terminal is attached, send an access request to the attached network, otherwise trigger and perform a handover or location update process to redirect the terminal to the target network.
  • an apparatus for selecting a mobility management mechanism for a terminal as needed including: a determining module 701, configured to determine a mobility support level required by the terminal; and a notification module 702. And for notifying the network selection function to select a network or network function capable of supporting a required mobility support level to provide corresponding mobility management to the terminal according to the determined mobility support level required by the terminal.
  • the apparatus further includes: a receiving module, configured to receive a request that the network selection function determines a mobility support level required by the terminal.
  • the apparatus further includes: a determining module, configured to determine whether a mobility management function of the current serving terminal is capable of providing the terminal with the terminal Mobility support; a processing module, configured to: when the mobility management function of the current serving terminal is unable to provide the terminal with the mobility support required by the terminal, the required mobility support level of the terminal is used for mobility management function select.
  • the apparatus further includes: a determining module, configured to determine whether the network accessed by the terminal is capable of providing the terminal with mobility support required by the terminal; And a module, configured to perform reselection of the target network when the network is unable to provide the terminal with mobility support required by the terminal.
  • the reselection module is further configured to: send a request message to the network selection function, reselect a target network for the terminal, where the request message carries at least a terminal a required mobility support level; or performing target network selection according to the required mobility support level of the terminal; determining an identity of the target network capable of providing a required mobility support level, providing the identity of the target network to the Network selection function.
  • the network or network function supporting the required mobility support level includes any one of the following: network slicing and support required to support the required mobility support level Mobility support level mobility management capabilities.
  • the network slice or mobility management function is generated according to a mobility level that needs to be supported in the network.
  • the determining module is further configured to: determine, according to the terminal information and/or the service type requested by the terminal, a mobility support level required by the terminal.
  • the determining module is further configured to determine a mobility support level required by the terminal when the terminal is attached to the network, and determine the terminal when the terminal performs the location update.
  • first determining a mobility support level required by the terminal, and then notifying the network selection function to select a network or network function capable of supporting the required mobility support level according to the determined mobility support level required by the terminal Provide corresponding mobility management to terminals, simplifying the composition of different networks by implementing different levels of mobility support in different networks; and avoiding complex network function configuration for different mobility support terminal services through different networks. , effectively reducing the complexity of mobility management.
  • an apparatus for selecting a mobility management mechanism for a terminal as needed including: a processor 804 for reading a program in the memory 805, and performing the following process: determining The mobility support level required by the terminal; according to the determined mobility support level required by the terminal, the notification network selection function selects a network or network function capable of supporting the required mobility support level to provide corresponding mobility to the terminal management.
  • the transceiver 801 is configured to receive and transmit data under the control of the processor 804.
  • bus 800 may include any number of interconnected buses and bridges, and bus 800 will include one or more processors represented by processor 804 and memory represented by memory 805. The various circuits are linked together.
  • the bus 800 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • Bus interface 803 provides an interface between bus 800 and transceiver 801.
  • Transceiver 801 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
  • Data processed by processor 804 is transmitted over wireless medium via antenna 802. Further, antenna 802 also receives data and transmits the data to processor 804.
  • the processor 804 is responsible for managing the bus 800 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 805 can be used to store data used by the processor 804 in performing the operations.
  • the processor 804 can be a CPU, an ASIC, an FPGA, or a CPLD.
  • the processor 804 is configured to receive a request that the network selection function determines a mobility support level required by the terminal.
  • the processor 804 is configured to determine whether the mobility management function of the current serving terminal can provide the terminal with mobility support required by the terminal; and the mobility management function of the current serving terminal cannot provide the terminal with the mobility management function. When the mobility required by the terminal is supported, the mobility support level required by the terminal is selected for the mobility management function.
  • the processor 804 is configured to determine whether the network accessed by the terminal can provide the terminal with mobility support required by the terminal.
  • the processor 804 is configured to perform reselection of the target network when the network is unable to provide the mobility support required by the terminal to the terminal.
  • the processor 804 is configured to send a request message to the network selection function, to reselect the target network for the terminal, where the request message carries at least a mobility support level required by the terminal;
  • Determining the target network according to the required mobility support level of the terminal determining an identifier of the target network capable of providing the required mobility support level, and providing the identifier of the target network to the network selection function.
  • the network or network function supporting the required mobility support level includes any one of the following: a network slice supporting a required mobility support level and a mobility management function supporting a required mobility support level.
  • the network slice or mobility management function is generated according to a mobility level that needs to be supported in the network.
  • the processor 804 is configured to determine, according to the terminal information and/or the service type requested by the terminal, a mobility support level required by the terminal.
  • the processor 804 is configured to determine a mobility support level required by the terminal when the terminal is attached to the network, determine a mobility support level required by the terminal when the terminal performs location update, and/or initiate the terminal. When connecting requests, determine the level of mobility support required by the terminal.
  • first determining a mobility support level required by the terminal, and then notifying the network selection function to select a network or network function capable of supporting the required mobility support level according to the determined mobility support level required by the terminal Provide corresponding mobility management to terminals, simplifying the composition of different networks by implementing different levels of mobility support in different networks; and avoiding complex network function configuration for different mobility support terminal services through different networks. , effectively reducing the complexity of mobility management.
  • a mobility support determination function (also referred to as a mobility support determination function entity) is also provided in some embodiments of the present disclosure, including an apparatus for selecting a mobility management mechanism for a terminal as needed according to the above embodiments.
  • one mobility support determination function is shared by multiple networks, or one mobility support determination function is included in one network.
  • first determining a mobility support level required by the terminal and then notifying the network selection function selection to support the required mobility branch according to the determined mobility support level required by the terminal.
  • Level-of-network or network functions to provide appropriate mobility management to terminals, simplifying the composition of different networks by enabling different levels of mobility support in different networks; and supporting different mobility requirements through different networks
  • Terminal services avoid complicated network function configuration and effectively reduce the complexity of mobility management.
  • system and “network” are used interchangeably herein.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus 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.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • 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, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one single unit. Yuanzhong.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开实施例提供了一种按需为终端选择移动性管理机制的方法及装置，该方法包括：确定终端所需的移动性支持级别；根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。

Description

一种按需为终端选择移动性管理机制的方法及装置
相关申请的交叉引用
本申请主张在2016年5月13日在中国提交的中国专利申请号No.201610320160.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种按需为终端选择移动性管理机制的方法及装置。
背景技术
根据3GPP TR 22.891的描述，未来5G网络需要提供不同需求的移动性支持。因为5G网络中存在不同的通信场景：不同的终端具有不同的移动范式，例如有些终端是在高速移动中接入网络的，而另外一些是游牧接入网络或者静态接入网络的；不同的业务也具有不同的移动性支持要求，例如某些业务希望减少在业务传输过程中的中断和丢包率，因此要求网络对应用层屏蔽移动性事件，包括切换过程中保持IP地址不变，而另外一些应用却可以使用应用层手段来支持业务连续性。基于这些考虑，3GPP提出了按需的移动性支持。
目前SA2提出过一种按需移动性管理的方法(3GPP TR 23.799)，具体要求网络中实现移动性管理控制功能，该控制功能能够基于终端的签约等信息获取终端的移动性级别。基于终端的移动性级别，移动性管理控制功能配置网络中的移动性管理子功能，激活需要向终端提供服务的移动性管理子功能，从而为终端提供量身定制的移动性管理机制。
现有的按需移动性支持的解决方案要求网络中实现所有的移动性管理子功能，增加网络的复杂度，网络中的移动性管理控制功能需要根据移动性支持级别确定激活哪些移动性管理子功能，增加了网络配置流程，尤其是针对大量要求不同移动性支持的终端，增加移动性管理的复杂度。
发明内容
鉴于上述技术问题，本公开实施例提供一种按需为终端选择移动性管理机制的方法及装置，解决现有的按需移动性支持的解决方案需要进行复杂的 网络功能配置的技术问题。
依据本公开实施例的一个方面，提供了一种按需为终端选择移动性管理机制的方法，包括：确定终端所需的移动性支持级别；根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。
可选地，在所述确定终端所需的移动性支持级别之前，所述方法还包括：接收网络选择功能确定终端所需的移动性支持级别的请求。
可选地，所述方法还包括：判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；若不能够，所述终端所需移动性支持级别进行移动性管理功能的选择。
可选地，所述方法还包括：判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；若不能够，进行目标网络的重选。
可选地，所述进行目标网络的重选，包括：发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
可选地，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：支持所需移动性支持级别的网络切片；支持所需移动性支持级别的移动性管理功能。
可选地，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
可选地，所述确定终端所需的移动性支持级别，包括：根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
可选地，所述确定终端所需的移动性支持级别，包括：在终端附着到网络时，确定终端所需的移动性支持级别；在终端进行位置更新时，确定终端所需的移动性支持级别；和/或在终端发起连接请求时，确定终端所需的移动性支持级别。
依据本公开实施例的另一个方面，还提供了一种按需为终端选择移动性 管理机制的装置，包括：确定模块，用于确定终端所需的移动性支持级别；通知模块，用于根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。
可选地，所述装置还包括：接收模块，用于接收网络选择功能确定终端所需的移动性支持级别的请求。
可选地，所述装置还包括：判断模块，用于判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；处理模块，用于在当前服务终端的移动性管理功能不能够向终端提供所述终端所需的移动性支持时，所述终端所需移动性支持级别进行移动性管理功能的选择。
可选地，所述装置还包括：判断模块，用于判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；重选模块，用于在网络不能够向终端提供所述终端所需的移动性支持时，进行目标网络的重选。
可选地，所述重选模块进一步用于：发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
可选地，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：支持所需移动性支持级别的网络切片；和支持所需移动性支持级别的移动性管理功能。
可选地，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
可选地，所述确定模块进一步用于：根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
可选地，所述确定模块进一步用于：在终端附着到网络时，确定终端所需的移动性支持级别；在终端进行位置更新时，确定终端所需的移动性支持级别；和/或在终端发起连接请求时，确定终端所需的移动性支持级别。
依据本公开实施例的又一个方面，还提供了一种移动性支持确定功能， 包括如上所述按需为终端选择移动性管理机制的装置。
可选地，一个移动性支持确定功能被多个网络共享，或者，一个移动性支持确定功能包含在一个网络中。
依据本公开实施例的另一个方面，还提供了一种按需为终端选择移动性管理机制的装置，包括：存储器，处理器以及收发机，其中所述处理器用于读取存储器中的程序，执行下列过程：确定终端所需的移动性支持级别；根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理；所述收发机，用于接收和发送数据。
上述技术方案中的一个技术方案具有如下优点或有益效果：首先确定终端所需的移动性支持级别，然后根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向终端提供相应的移动性管理，通过在不同网络中实现不同级别的移动性支持，简化了不同网络的构成；而且通过不同的网络为不同移动性支持需求的终端服务，避免复杂的网络功能配置，有效降低了移动性管理的复杂度。
附图说明
图1为本公开一些实施例中按需为终端选择移动性管理机制的方法的流程图；
图2为本公开一些实施例中将运营商网络划分为实现不同移动性支持级别的网络的示意图；
图3A和图3B为本公开一些实施例的网络架构示意图；
图4为本公开一些实施例的终端在已附着的网络中发起连接建立或者发生位置更新的过程示意图；
图5为本公开一些实施例的网络选择功能根据终端所需的移动性支持级别选择目标网络的示意图；
图6为本公开一些实施例中终端发起连接建立或者发生位置更新的过程示意图；
图7为本公开一些实施例按需为终端选择移动性管理机制的装置的示意图
图8为本公开一些实施例按需为终端选择移动性管理机制的装置的示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本领域技术人员知道，本公开的实施方式可以实现为一种系统、装置、设备、方法或计算机程序产品。因此，本公开的实施例可以具体实现为以下形式：完全的硬件、完全的软件(包括固件、驻留软件、微代码等)，或者硬件和软件结合的形式。
根据本公开的实施方式，提出了一种按需为终端选择移动性管理机制的方法及装置。
在本公开一些实施方式中，运营商可通过其运营支撑系统获取的用户信息，终端信息，业务网络或者第三方应用提供的业务信息，用户的通信模型等，挖掘出其网络中的用户终端的移动性模型(或规律)，移动应用的特征。然后基于获取的上述信息，可以确定其网络中需要提供的移动性支持等级，例如高、中或低等级的移动性支持。
相应地，运营商的网管系统根据所需的移动性支持等级对其网络进行划分，例如进行网络切片，使得不同网络实现不同等级的移动性支持。但一个网络中可能实现多个等级的移动性支持。
当终端接入该运营商网络时，网络中的移动性支持级别判定功能(也可称为移动性支持级别判定功能实体)，例如移动性等级确定功能(也可称为移动性等级确定功能实体)，首先根据终端的接入请求，例如附着请求，位置更新请求，连接建立请求等，确定该终端所需的移动性支持级别。根据确定的终端所需的移动性支持级别，网络选择功能(也可称为网络选择功能实体)为终端选择能够提供所需移动性支持的网络。
参见图1，图中示出了一种按需为终端选择移动性管理机制的方法，该方法的执行主体可以是移动性支持级别判定功能(也可称为移动性等级确定 功能)，具体包括以下步骤。
步骤S110、确定终端所需的移动性支持级别；
3GPP TR 23.799中提出了按需移动性支持概念的定义，即网络基于终端和业务的不同特性提供不同的移动性支持，上述移动性支持的具体功能可以包括以下任意一项或多项：移动性上下文管理、位置跟踪(位置更新)、寻呼、切换控制、路径优化(锚点重选)、可达性管理，当然也并不限于此。
在本实施例中，可以将移动性支持级别划分为高等级的移动性支持、中等级的移动性支持和低等级的移动性支持，基于终端或业务的优先级对移动性支持级别进行等级划分，或者基于移动性支持级的具体功能进行等级划分，当然可以理解的是，在本实施例中并不限定移动性支持级别的具体等级划分方式。
在步骤S110中，可以根据终端信息和/或终端请求的业务类型，确定终端所需的移动性支持级别。
在本实施例中，在满足以下任意一项或多项的条件时，触发确定终端所需的移动性支持级别，具体条件如下：在终端附着到网络时，确定终端所需的移动性支持级别；在终端进行位置更新时，确定终端所需的移动性支持级别；和/或在终端发起连接请求时，确定终端所需的移动性支持级别。
在本实施例中，在上述步骤S110之前，移动性支持级别判定功能可接收网络选择功能确定终端所需的移动性支持级别的请求。即通过网络选择功能触发移动性支持级别判定功能确定终端所需的移动性支持级别，当然也并不限于此。
步骤S120、根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向终端提供相应的移动性管理。
上述支持所需移动性支持级别的网络或网络功能包括以下任意一项：支持所需移动性支持级别的网络切片和支持所需移动性支持级别的一组移动性管理功能(也可称为移动性管理功能实体)，当然也并不限于此。
上述网络切片或移动性管理功能可以根据网络中需要支持的移动性级别而生成。
在本实施例中，判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；若不能够，所述终端所需移动性支持级别进行移动性管理功能的选择。
在本实施例中，判断终端接入的网络是否能够向终端提供终端所需的移动性支持；若能够，则向终端提供相应的移动性管理；若不能够，进行目标网络的重选。
需要说明的是，在本实施例中，通过以下方式进行目标网络的重选：
方式一、发送请求消息给网络选择功能，由网络选择功能为终端重新选择目标网络，请求消息中至少携带终端所需的移动性支持级别；
方式二、根据终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将目标网络的标识提供给网络选择功能，由网络选择功能根据目标网络的标识选择目标网络。
在本实施例中，首先确定终端所需的移动性支持级别，然后根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向终端提供相应的移动性管理，通过在不同网络中实现不同级别的移动性支持，简化了不同网络的构成；而且通过不同的网络为不同移动性支持需求的终端服务，避免复杂的网络功能配置，有效降低了移动性管理的复杂度。
参见图2，结合图2介绍将运营商网络划分为实现不同移动性支持级别的网络。
具体地，运营商需获取的用户信息，终端信息，业务网络或者第三方应用提供的业务信息，用户的通信模型等，挖掘出其网络中的用户终端的移动性模型(或规律)，移动应用的特征。基于获取的信息，确定其网络中需要提供的移动性支持等级，例如高，中，低等级的移动性支持，并保存在终端用户的签约属性中。如图2所示，运营商部署移动描述系统进行终端移动模型的发现和移动业务的描述，从而确定网络中需要提供移动性支持。
基于移动描述系统的决策，运营商网络的运营管理层可判断如何提供所需的移动性支持。若运营管理层的网络切片管理器判断需要创建新的网络切片，则网络切片管理器需请求网络切片描述系统进行待建立网络切片的描述。 网络切片描述系统用于定义待建立网络的所有网络功能和相互连接。为了提供能够满足移动性支持需求的移动性管理机制，系统可增加了移动性管理功能体描述(MMF description，mobility management functionality description)功能来进行所有移动性管理子功能体的详细定义，辅助网络切片描述功能进行网络切片的定义。当网络切片描述功能完成切片描述后，通知网络切片管理器触发网络切片的生成。具体实施中，运营商或者MMF功能可能定义如下类型的移动性管理机制：
1.控制平面移动性管理功能和用户平面移动性锚点集中部署在核心网，支持会话连续性；
2.控制平面移动性管理功能和用户平面移动性锚点集中部署在核心网，不支持会话连续性；
3.控制平面移动性管理功能集中部署在核心网，用户平面移动性锚点部署在靠近用户位置，支持会话连续性；
4.控制平面移动性管理功能集中部署在核心网，用户平面移动性锚点部署在靠近用户位置，不支持会话连续性；
5.控制平面移动性管理功能部署在接入网侧，用户平面移动性锚点部署核心网，支持会话连续性；
6.控制平面移动性管理功能部署在接入网侧，用户平面移动性锚点部署在靠近用户位置，支持会话连续性；
7.控制平面移动性管理功能部署在接入网侧，用户平面移动性锚点部署在靠近用户位置，不支持会话连续性。
具体的移动性管理功能如图2所示，可能包括：移动性上下文管理Mobility context management(移动性状态机维护)；位置跟踪Location tracking(位置更新)；寻呼paging；切换控制Handover control；路径优化Path optimization(锚点重选)；可达性管理Reachability mangement。
网络切片管理器请求编排控制层进行网络切片的具体生成，例如请求MANO(Management and Orchestration，管理编排域)系统生成具体的网络切片。网络切片生成后，网络切片管理器还负责对其生命周期进行管理，例如修改或撤销该网络切片。
该网络切片框架使得网络能够生成支持不同移动性级别的网络切片，使得不同移动性需求的终端可能被不同的网络切片所服务，例如：当收到静态的智能电表设备的小数据传输请求时，为终端选择控制平面移动性管理功能和用户平面移动性锚点集中部署在核心网的，不支持会话连续性的网络，无需支持位置跟踪；当收到SMART phone(智能电话)发起的IMS呼叫业务时，为终端选择控制平面移动性管理功能和用户平面移动性锚点集中部署在核心网的，支持会话连续性的网络，无需支持路径优化(锚点不变)。
在一些实施例中，如图3A和3B所示，每个网络中都实现了移动性级别判定功能，具体实现时，移动性级别判定功能位于对应的网络内，参见图3A；移动性级别判定功能可能被多网络共享，参见图3B。目的是为了在终端接入该网络后，根据终端的移动信息和业务，确定当前终端所需的移动性支持等级，从而为终端选择能够提供合适的移动性管理机制或功能的网络。
需要说明的是，本实施例中终端附着到网络过程类似相关技术，网络选择功能根据终端的类型，签约等选择目标网络。
参见图4，结合图4介绍终端在已附着的网络中发起连接建立或者发生位置更新的流程，具体步骤如下：
步骤S401、UE在已附着的网络中，发出接入请求，例如位置更新请求，连接建立请求等；
步骤S402、已附着网络收到终端的请求后，由网络内的移动性级别判定功能判断该终端当前所需的移动性支持级别，并判断本网络是否能够向终端提供所需的移动性支持；若能够，则向终端提供相应的移动性管理；
步骤S403、判断出已附着网络不能够向终端提供所需的移动性支持，该移动性级别判定功能请求网络选择功能为终端重新选择目标网络，请求消息中至少携带终端所需的移动性支持级别；或者该移动性级别判定功能根据所需移动性支持级别进行目标网络选择，步骤S404跳过，进入步骤S405。
步骤S404、网络选择功能根据收到的信息重选出目标网络，并响应。
步骤S405、触发并执行切换或者位置更新过程，将终端重定向到目标网络。
在一些实施例中，参见图5，图中示出了网络选择功能根据终端所需的 移动性支持级别选择目标网络。如图5所示，移动性等级判定功能独立与各网络，在终端接入网络，请求位置更新或建立连接时，由网络选择功能根据终端当前所需的移动性级别选择合适的目标网络。当然可以理解的是，移动性等级判定功能可能与网络选择功能设置成一个功能实体。
需要说明的是，在本实施例中，终端附着到网络类似相关技术，网络选择功能根据终端的类型，签约等选择目标网络。
参见图6，介绍终端发起连接建立或者发生位置更新的过程，具体步骤如下：
步骤S601、网络选择功能根据终端的接入请求，例如连接建立请求，位置更新请求等；
步骤S602、网络选择功能请求移动性级别判定功能确定终端所需的移动性支持级别；
步骤S603、移动性级别判定功能根据终端信息，例如终端类型，终端位置，和/或终端请求的业务类型等，判定该终端当前所需的移动性支持级别并返回；
步骤S604、网络选择功能依据终端此次接入所需的移动性支持级别为终端选择能够提供所需移动性支持的目标网络；
步骤S605、若目标网络为终端已附着的网络，则将接入请求发送给该已附着网络，否则触发并执行切换或者位置更新过程，将终端重定向到目标网络。
在一些实施例中，参见图7，图中示出了一种按需为终端选择移动性管理机制的装置，包括：确定模块701，用于确定终端所需的移动性支持级别；通知模块702，用于根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。
可选地，在本公开的一种可选实施例中，所述装置还包括：接收模块，用于接收网络选择功能确定终端所需的移动性支持级别的请求。
可选地，在本公开的一种可选实施例中，所述装置还包括：判断模块，用于判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需 的移动性支持；处理模块，用于在当前服务终端的移动性管理功能不能够向终端提供所述终端所需的移动性支持时，所述终端所需移动性支持级别进行移动性管理功能的选择。
可选地，在本公开的一种可选实施例中，所述装置还包括：判断模块，用于判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；重选模块，用于在网络不能够向终端提供所述终端所需的移动性支持时，进行目标网络的重选。
可选地，在本公开的一种可选实施例中，所述重选模块进一步用于：发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
可选地，在本公开的一种可选实施例中，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：支持所需移动性支持级别的网络切片和支持所需移动性支持级别的移动性管理功能。
可选地，在本公开的一种可选实施例中，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
可选地，在本公开的一种可选实施例中，所述确定模块进一步用于：根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
可选地，在本公开的一种可选实施例中，所述确定模块进一步用于：在终端附着到网络时，确定终端所需的移动性支持级别；在终端进行位置更新时，确定终端所需的移动性支持级别；和/或在终端发起连接请求时，确定终端所需的移动性支持级别。
在本实施例中，首先确定终端所需的移动性支持级别，然后根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向终端提供相应的移动性管理，通过在不同网络中实现不同级别的移动性支持，简化了不同网络的构成；而且通过不同的网络为不同移动性支持需求的终端服务，避免复杂的网络功能配置，有效降低了移动性管理的复杂度。
在一些实施例中，参见图8，图中示出了一种按需为终端选择移动性管理机制的装置，包括：处理器804，用于读取存储器805中的程序，执行下列过程：确定终端所需的移动性支持级别；根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。收发机801，用于在处理器804的控制下接收和发送数据。
在图8中，总线架构(用总线800来代表)，总线800可以包括任意数量的互联的总线和桥，总线800将包括由处理器804代表的一个或多个处理器和存储器805代表的存储器的各种电路链接在一起。总线800还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口803在总线800和收发机801之间提供接口。收发机801可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器804处理的数据通过天线802在无线介质上进行传输，进一步，天线802还接收数据并将数据传送给处理器804。
处理器804负责管理总线800和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器805可以被用于存储处理器804在执行操作时所使用的数据。
可选的，处理器804可以是CPU、ASIC、FPGA或CPLD。
可选地，处理器804，用于接收网络选择功能确定终端所需的移动性支持级别的请求。
可选地，处理器804，用于判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；在当前服务终端的移动性管理功能不能够向终端提供所述终端所需的移动性支持时，所述终端所需移动性支持级别进行移动性管理功能的选择。
可选地，处理器804，用于判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；
可选地，处理器804，用于在网络不能够向终端提供所述终端所需的移动性支持时，进行目标网络的重选。
可选地，处理器804，用于发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者
根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
可选地，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：支持所需移动性支持级别的网络切片和支持所需移动性支持级别的移动性管理功能。
可选地，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
可选地，处理器804，用于根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
可选地，处理器804，用于在终端附着到网络时，确定终端所需的移动性支持级别；在终端进行位置更新时，确定终端所需的移动性支持级别；和/或在终端发起连接请求时，确定终端所需的移动性支持级别。
在本实施例中，首先确定终端所需的移动性支持级别，然后根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向终端提供相应的移动性管理，通过在不同网络中实现不同级别的移动性支持，简化了不同网络的构成；而且通过不同的网络为不同移动性支持需求的终端服务，避免复杂的网络功能配置，有效降低了移动性管理的复杂度。
本公开一些实施例中还提供了一种移动性支持确定功能(也可称为移动性支持确定功能实体)，包括如上述实施例所述的按需为终端选择移动性管理机制的装置。
可选地，一个移动性支持确定功能被多个网络共享，或者，一个移动性支持确定功能包含在一个网络中。
在本实施例中，首先确定终端所需的移动性支持级别，然后根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支 持级别的网络或网络功能，以向终端提供相应的移动性管理，通过在不同网络中实现不同级别的移动性支持，简化了不同网络的构成；而且通过不同的网络为不同移动性支持需求的终端服务，避免复杂的网络功能配置，有效降低了移动性管理的复杂度。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，本文中术语“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。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，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。
另外，在本公开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包括，也可以两个或两个以上单元集成在一个单 元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (21)

  1. 一种按需为终端选择移动性管理机制的方法，包括：
    确定终端所需的移动性支持级别；
    根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。
  2. 根据权利要求1所述的方法，其中，在所述确定终端所需的移动性支持级别之前，所述方法还包括：接收网络选择功能确定终端所需的移动性支持级别的请求。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：
    判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；
    若不能够，所述终端所需移动性支持级别进行移动性管理功能的选择。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：
    判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；
    若不能够，进行目标网络的重选。
  5. 根据权利要求4所述的方法，其中，所述进行目标网络的重选，包括：
    发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者
    根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
  6. 根据权利要求1所述的方法，其中，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：
    支持所需移动性支持级别的网络切片；
    支持所需移动性支持级别的移动性管理功能。
  7. 根据权利要求6所述的方法，其中，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
  8. 根据权利要求1所述的方法，其中，所述确定终端所需的移动性支持级别，包括：
    根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
  9. 根据权利要求1所述的方法，其中，所述确定终端所需的移动性支持级别，包括：
    在终端附着到网络时，确定终端所需的移动性支持级别；
    在终端进行位置更新时，确定终端所需的移动性支持级别；和/或
    在终端发起连接请求时，确定终端所需的移动性支持级别。
  10. 一种按需为终端选择移动性管理机制的装置，包括：
    确定模块，用于确定终端所需的移动性支持级别；
    通知模块，用于根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理。
  11. 根据权利要求10所述的装置，其中，所述装置还包括：
    接收模块，用于接收网络选择功能确定终端所需的移动性支持级别的请求。
  12. 根据权利要求10所述的装置，其中，所述装置还包括：
    判断模块，用于判断当前服务终端的移动性管理功能是否能够向终端提供所述终端所需的移动性支持；
    处理模块，用于在当前服务终端的移动性管理功能不能够向终端提供所述终端所需的移动性支持时，所述终端所需移动性支持级别进行移动性管理功能的选择。
  13. 根据权利要求10所述的装置，其中，所述装置还包括：
    判断模块，用于判断终端接入的网络是否能够向终端提供所述终端所需的移动性支持；
    重选模块，用于在网络不能够向终端提供所述终端所需的移动性支持时，进行目标网络的重选。
  14. 根据权利要求13所述的装置，其中，所述重选模块进一步用于：
    发送请求消息给所述网络选择功能，为终端重新选择目标网络，所述请求消息中至少携带终端所需的移动性支持级别；或者
    根据所述终端所需移动性支持级别进行目标网络选择；确定能够提供所需移动性支持级别的目标网络的标识，将所述目标网络的标识提供给所述网络选择功能。
  15. 根据权利要求10所述的装置，其中，所述支持所需移动性支持级别的网络或网络功能包括以下任意一项：
    支持所需移动性支持级别的网络切片；和
    支持所需移动性支持级别的移动性管理功能。
  16. 根据权利要求15所述的装置，其中，所述网络切片或移动性管理功能根据网络中需要支持的移动性级别而生成。
  17. 根据权利要求10所述的装置，其中，所述确定模块进一步用于：根据终端信息和/或终端请求的业务类型，确定所述终端所需的移动性支持级别。
  18. 根据权利要求10所述的装置，其中，所述确定模块进一步用于：
    在终端附着到网络时，确定终端所需的移动性支持级别；
    在终端进行位置更新时，确定终端所需的移动性支持级别；和/或
    在终端发起连接请求时，确定终端所需的移动性支持级别。
  19. 一种移动性支持确定功能装置，包括如权利要求10～18任一项所述按需为终端选择移动性管理机制的装置。
  20. 根据权利要求19所述的移动性支持确定功能装置，其中，一个移动性支持确定功能被多个网络共享，或者，一个移动性支持确定功能包含在一个网络中。
  21. 一种按需为终端选择移动性管理机制的装置，包括：存储器，处理器以及收发机，其中
    所述处理器用于读取存储器中的程序，执行下列过程：确定终端所需的移动性支持级别；根据确定的终端所需的移动性支持级别，通知网络选择功能选择能够支持所需移动性支持级别的网络或网络功能，以向所述终端提供相应的移动性管理；
    所述收发机，用于接收和发送数据。
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