WO2014166095A1

WO2014166095A1 - Method and device for selecting access network

Info

Publication number: WO2014166095A1
Application number: PCT/CN2013/074095
Authority: WO
Inventors: 李秉肇; 陈燕燕; 高永强
Original assignee: 华为技术有限公司
Priority date: 2013-04-11
Filing date: 2013-04-11
Publication date: 2014-10-16
Also published as: CN104255066A; CN104255066B

Abstract

Provided are a method and device for selecting an access network.The method comprises: an access network device obtaining a service access policy of a user equipment (UE), the service access policy being obtained in accordance with an access network selection policy provided for the UE by an access network discovery and selection function (ANDSF) module;and selecting the access network for the service of the UE in accordance with the service access policy.In the solution provided in the embodiments of the present invention, the service access policy is generated for the UE in accordance with the access network selection policy provided by the ANDSF module. The UE can access a network in accordance with the service access policy. The dynamic process can select the most suitable access network for the UE when an access system controlled by the access network device conflicts with the policy provided by the ANDSF.

Description

接入网络的选择方法及设备 Access network selection method and device

技术领域本发明涉及通信技术，尤其涉及一种接入网络的选择方法及设备。背景技术 TECHNICAL FIELD The present invention relates to communications technologies, and in particular, to a method and an apparatus for selecting an access network. Background technique

接入网发现与选择功能 ( Access Network Discovery and Selection Function,简称为： ANDSF )模块是一种新引入第三代伙伴计划（ 3^rd Generation Partner Project, 简称为： 3GPP ) 的网元功能模块。 ANDSF具有数据管理和控制功能，能够响应用户设备（User Equipment, 简称为： UE )进行接入网络选择的请求，提供发现用户接入网络和进行接入网络选择所需的辅助数据。 ANDSF可以提供三类辅助数据给 UE, 第一类是***间的移动性策略，如是否允许进行***间的移动等；第二类是接入网络发现信息，如 UE临近区域的所有接入***的接入网络信息等；第三类是***间的路由策略，包括一些过滤规则，如某个特定的业务流或者特定的接入点（Access Point Name, 简称为： APN )是否允许接入到某个接入***中等等。 Access Network Discovery and Selection Function (Access Network Discovery and Selection Function, referred to as: ANDSF) module is a new introduction of Third Generation Partnership Project (3 ^rd Generation Partner Project, referred to as: 3GPP) network element modules. The ANDSF has a data management and control function, and can respond to a user equipment (User Equipment, UE for short) request for access network selection, and provide auxiliary data required for discovering a user accessing the network and performing an access network selection. The ANDSF can provide three types of auxiliary data to the UE. The first type is the mobility policy between systems, such as whether to allow inter-system mobility, etc. The second type is access network discovery information, such as all access systems in the vicinity of the UE. Access network information, etc.; The third type is the routing policy between systems, including some filtering rules, such as whether a specific service flow or a specific access point (Access Point Name, APN for short) is allowed to access. In an access system and so on.

UE根据 ANDSF模块提供的辅助数据，结合当前业务的特征，选择最为合适的接入网络，实现数据业务的有效卸载。 The UE selects the most suitable access network according to the auxiliary data provided by the ANDSF module and combines the characteristics of the current service to implement effective offloading of the data service.

但是， ANDSF模块也存在一些有待解决的问题，如，不能根据接入网侧的 RRM情况来动态修改策略，一旦接入网设备控制的接入***与 ANDSF模块提供的策略相冲突， UE便无法接入最为合适的网络。发明内容 However, the ANDSF module also has some problems to be solved. For example, the policy cannot be dynamically modified according to the RRM situation on the access network side. Once the access system controlled by the access network device conflicts with the policy provided by the ANDSF module, the UE cannot Access to the most appropriate network. Summary of the invention

本发明实施例提供一种接入网络的选择方法及设备，在接入网设备控制的接入***与 ANDSF提供的策略相冲突时，可以为 UE选择最为合适的接入网络。 The embodiment of the invention provides a method and a device for selecting an access network. When the access system controlled by the access network device conflicts with the policy provided by the ANDSF, the most suitable access network can be selected for the UE.

本发明的第一方面是提供一种接入网络的选择方法，包括： A first aspect of the present invention provides a method for selecting an access network, including:

接入网设备获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； The access network device obtains a service access policy of the user equipment UE, where the service access policy is an access network selection policy provided by the ANDSF module for the UE according to the access network discovery and selection function owned;

根据所述业务接入策略为所述 UE的业务选择接入网络。 And selecting, according to the service access policy, an access network for the service of the UE.

本发明第一方面的第一种实施方式下，所述业务接入策略包括：业务的无线接入技术 RAT优先级； In the first implementation manner of the first aspect of the present disclosure, the service access policy includes: a radio access technology RAT priority of the service;

和 /或，业务允许接入和 /或禁止接入的接入点信息； And / or access point information that the service allows access to and/or prohibits access;

和 /或，业务允许接入和 /或禁止接入的时间信息； And / or time information that the service allows access and/or prohibition of access;

和 /或，业务允许接入和 /或禁止接入的地址信息。 And / or, the address information that the service allows access and/or access.

结合本发明第一方面及第一方面的第一种实施方式，在本发明第一方面的第二种实施方式下，所述方法还包括：获得所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识； With reference to the first aspect of the present invention and the first embodiment of the first aspect, in a second implementation manner of the first aspect of the present disclosure, the method further includes: obtaining a radio access bearer corresponding to the service access policy The identity of the RAB or the identity of the UE;

则所述根据所述业务接入策略为所述 UE的业务选择接入网络包括：根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 The selecting the access network for the service of the UE according to the service access policy includes: selecting an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明第一方面，在本发明第一方面的第三种实施方式下，所述根据所述业务接入策略为所述 UE的业务选择接入网络之后，所述方法还包括：向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 With reference to the first aspect of the present invention, in a third implementation manner of the first aspect of the present disclosure, after the selecting, according to the service access policy, an access network for the service of the UE, the method further includes: The UE sends an access indication, where the access indication carries a service identifier and/or the access network identifier.

结合本发明第一方面的第三种实施方式，在本发明第一方面的第四种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 With reference to the third implementation manner of the first aspect of the present invention, in a fourth implementation manner of the first aspect of the present disclosure, the access network identifier is an access network type and/or an identifier of an access point in the access network. .

结合本发明第一方面的第三种实施方式，在本发明第一方面的第五种实施方式下，所述向所述 UE发送接入指示之前，所述方法还包括：接入网设备向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 With reference to the third embodiment of the first aspect of the present invention, in the fifth implementation manner of the first aspect of the present disclosure, before the sending the access indication to the UE, the method further includes: accessing the network device to The UE sends a command message, which is used to indicate that the UE complies with the network side command and cannot make its own access to the network.

结合本发明第一方面的第五种实施方式，在本发明第一方面的第六种实施方式下，所述命令消息具体为网络支持 WLAN卸载能力的指示。 With reference to the fifth embodiment of the first aspect of the present invention, in the sixth implementation manner of the first aspect of the present invention, the command message is specifically an indication that the network supports the WLAN offload capability.

结合本发明第一方面的第二种实施方式，在本发明第一方面的第七种实施方式下，所述根据所述业务接入策略为所述 UE的业务选择接入网络，包括：按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 With reference to the second embodiment of the first aspect of the present invention, in a seventh implementation manner of the first aspect of the present disclosure, the selecting, according to the service access policy, the access network for the service of the UE, includes: The RAT priority of the service is in the order of high to low, and it is judged whether the load of the corresponding network exceeds a preset percentage; if it is exceeded, the network with the second highest priority is selected as the access network of the UE.

结合本发明第一方面，在本发明第一方面的第八种实施方式下，所述接入网设备获得 UE的业务接入策略具体包括：接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成；或者，接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。 With reference to the first aspect of the present invention, in the eighth embodiment of the first aspect of the present invention, the The obtaining, by the network access device, the service access policy of the UE includes: receiving a service access policy sent by the core network device, where the service access policy is an access network selection policy provided by the core network according to the UE or the ANDSF module. And generating, by the UE, a service access policy sent by the UE, where the service access policy is generated by the UE according to an access network selection policy provided by the ANDSF module.

本发明的第二方面是提供一种接入网络的选择方法，包括： A second aspect of the present invention provides a method for selecting an access network, including:

核心网设备获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略； The core network device obtains an access network discovery and selection function. The ANDSF module provides an access network selection policy to the user equipment UE;

根据所述接入网络选择策略为所述 UE生成业务接入策略，并将所述 UE 的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 Generating a service access policy for the UE according to the access network selection policy, and transmitting the service access policy of the UE to the access network device, so that the access network device accesses according to the service of the UE The policy selects an access network for the service of the UE.

结合本发明的第二方面，在本发明第二方面的第一种实施方式下，所述业务接入策略包括： With reference to the second aspect of the present invention, in a first implementation manner of the second aspect, the service access policy includes:

业务的无线接入技术 RAT优先级； Radio access technology of the service RAT priority;

结合本发明的第二方面以及第二方面的第一种实施方式，在本发明第二方面的第二种实施方式下，所述方法还包括：发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 With reference to the second aspect of the present invention and the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the present disclosure, the method further includes: sending the wireless access corresponding to the service access policy The identifier of the RAB or the identifier of the UE is carried to the access network device, so that the access network device selects an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明的第二方面，在本发明第二方面的第三种实施方式下，所述根据所述接入网络选择策略为所述 UE生成业务接入策略包括：确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略；或者，确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF 策略为所述 UE生成业务接入策略。 With reference to the second aspect of the present invention, in a third implementation manner of the second aspect of the present disclosure, the generating, by the access network selection policy, the service access policy for the UE includes: determining each radio access of the UE And carrying the service carried in the RAB, and determining an ANDSF policy corresponding to each service, generating a service access policy for the UE according to the ANDSF policy; or determining a service carried in all RABs of the UE, and determining corresponding to the service And an ANDSF policy, generating a service access policy for the UE according to the ANDSF policy.

结合本发明的第二方面，在本发明第二方面的第四种实施方式下，所述核心网设备获得 ANDSF模块提供给 UE的接入网络选择策略，包括：所述核心网设备从 ANDSF模块接收所述 UE的接入网络选择策略；或者，所述核心网设备接收 UE上传的接入网络选择策略，所述 UE上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。 With reference to the second aspect of the present invention, in a fourth implementation manner of the second aspect of the present invention, the core network device obtains an access network selection policy that is provided by the ANDSF module to the UE, and includes: the core The network device receives the access network selection policy of the UE from the ANDSF module; or the core network device receives the access network selection policy uploaded by the UE, and the access network selection policy uploaded by the UE is the UE Obtained in the ANDSF module.

本发明的第三方面是提供一种接入网络的选择方法，包括： A third aspect of the present invention provides a method for selecting an access network, including:

用户设备 UE接收接入网设备发送的接入网选择指示； The user equipment UE receives an access network selection indication sent by the access network device;

根据所述接入网选择指示选择接入网。 The access network is selected according to the access network selection indication.

结合本发明的第三方面，在本发明第三方面的第一种实施方式下，所述接收接入网设备发送的接入网选择指示之前，所述方法还包括：所述 UE获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略；根据所述接入网络选择策略生成业务接入策略；将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 With reference to the third aspect of the present invention, in a first implementation manner of the third aspect of the present disclosure, before the receiving an access network selection indication sent by the access network device, the method further includes: obtaining, by the UE, access The network discovery and selection function provides an access network selection policy by the ANDSF module; generates a service access policy according to the access network selection policy; and sends the generated service access policy to the access network device, so that the access network device And selecting, according to the service access policy, an access network for the service of the UE.

结合本发明的第三方面的第一种实施方式，在本发明第三方面的第二种实施方式下，所述业务接入策略包括： With reference to the first implementation manner of the third aspect of the present invention, in the second implementation manner of the third aspect, the service access policy includes:

结合本发明的第三方面的第一种实施方式或第二种实施方式，在本发明第三方面的第三种实施方式下，所述方法还包括：将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 With reference to the first embodiment or the second embodiment of the third aspect of the present invention, in a third implementation manner of the third aspect of the present invention, the method further includes: performing wireless corresponding to the service access policy The identifier of the access bearer RAB or the identifier of the UE is sent to the access network device, so that the access network device selects an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明的第三方面的第二种实施方式，在本发明第三方面的第四种实施方式下，所述根据所述接入网络选择策略生成业务接入策略，包括：确定 UE 的各个无线接入承载 RAB 中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略；或者确定 UE的全部 RAB 中承载的业务，并确定所述业务对应的 ANDSF 策略，根据所述 ANDSF策略生成业务接入策略。 According to the second embodiment of the third aspect of the present invention, in the fourth implementation manner of the third aspect of the present invention, the generating a service access policy according to the access network selection policy includes: determining each of the UEs The radio access bears the services carried in the RAB, and determines the ANDSF policy corresponding to each service, generates a service access policy according to the ANDSF policy, or determines a service carried in all RABs of the UE, and determines an ANDSF policy corresponding to the service. And generating a service access policy according to the ANDSF policy.

结合本发明的第三方面，在本发明第三方面的第五种实施方式下，所述接入网选择指示中携带业务标识和 /或接入网络标识。 In conjunction with the third aspect of the present invention, in a fifth embodiment of the third aspect of the present invention, The access network selection indication carries a service identifier and/or an access network identifier.

结合本发明的第三方面的第五种实施方式，在本发明第三方面的第六种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 With reference to the fifth implementation manner of the third aspect of the present invention, in a sixth implementation manner of the third aspect of the present disclosure, the access network identifier is an access network type and/or an access point in the access network. Logo.

结合本发明的第三方面，在本发明第三方面的第七种实施方式下，所述方法还包括：所述 UE接收接入网设备发送的命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络；根据所述命令消息停止根据 ANDSF 策略进行网络选择，并根据所述接入网选择指示确定接入网络。 With reference to the third aspect of the present invention, in a seventh implementation manner of the third aspect of the present disclosure, the method further includes: the UE receiving a command message sent by an access network device, where the command message is used to indicate that the UE complies with The network side command does not make its own access to the network; according to the command message, network selection according to the ANDSF policy is stopped, and the access network is determined according to the access network selection indication.

本发明第四方面是提供一种接入网络的选择方法，包括： A fourth aspect of the present invention provides a method for selecting an access network, including:

用户设备 UE获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的；根据接入网络选择策略以及接入网设备的信息确定接入网络。 The user equipment UE obtains an access network selection policy and information of the access network device, where the access network selection policy is provided by the ANDSF module for the access network discovery and selection function; and the access network selection policy and access The information of the network device determines the access network.

结合本发明第四方面，在本发明第四方面的第一种实施方式下，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 With reference to the fourth aspect of the present invention, in a first implementation manner of the fourth aspect of the present invention, the information about the access network device includes: load information of the access network device or an access tendency of the access network device.

结合本发明第四方面的第一种实施方式，在本发明第四方面的第二种实施方式下，所述接入网设备的接入倾向包括：接入网设备倾向所述 UE接入第一网络，或者倾向所述 UE接入第二网络，或者不干涉所述 UE的接入网选择。 With reference to the first embodiment of the fourth aspect of the present invention, in a second implementation manner of the fourth aspect of the present disclosure, the accessing tendency of the access network device includes: the access network device is inclined to access the UE A network, or the UE is inclined to access the second network, or does not interfere with the access network selection of the UE.

结合本发明第四方面，在本发明第四方面的第三种实施方式下，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 With reference to the fourth aspect of the present invention, in a third implementation manner of the fourth aspect of the present disclosure, the access network selection policy includes: a radio access technology RAT priority of a radio access bearer RAB, where the RAT priority takes effect The load threshold of the corresponding access network device.

结合本发明第四方面的第三种实施方式下，在本发明第四方面的第四种实施方式下，所述根据接入网选择策略以及接入网设备的信息确定接入网络包括：根据接入网设备的负载信息，确定使用的接入网络选择策略；根据接入网络选择策略确定优先使用的接入网络。 With reference to the third embodiment of the fourth aspect of the present invention, in a fourth implementation manner of the fourth aspect of the present disclosure, the determining the access network according to the access network selection policy and the information of the access network device includes: The load information of the access network device determines the access network selection policy used; determines the preferential access network according to the access network selection policy.

结合本发明第四方面的第一种实施方式或第二种实施方式，在本发明第四方面的第五种实施方式下，所述根据接入网选择策略以及接入网设备的信息确定接入网络包括：在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。结合本发明第四方面的第五种实施方式，在本发明第四方面的第六种实施方式下，所述接入网设备的信息中还包括接入因子，所述方法还包括：生成随机因子； With reference to the first embodiment or the second embodiment of the fourth aspect of the present invention, in a fifth implementation manner of the fourth aspect of the present invention, the determining according to the access network selection policy and the information of the access network device The incoming network includes: selecting, in the network that the access network selection policy allows access, the access network according to the access tendency indication. With reference to the fifth implementation manner of the fourth aspect of the present invention, in a sixth implementation manner of the fourth aspect, the information about the access network device further includes an access factor, where the method further includes: generating a random factor;

将所述随机因子与所述接入因子相比较，获得比较结果； Comparing the random factor with the access factor to obtain a comparison result;

则所述根据所述接入倾向指示选择接入网络，具体包括： And the selecting the access network according to the access tendency indication, specifically:

如果所述比较结果符合预设规则，根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，等待预设时间后再次生成新的随机因子。 If the comparison result meets the preset rule, the access network is selected according to the access tendency indication; if the comparison result does not meet the preset rule, a new random factor is generated again after waiting for the preset time.

本发明第五方面是提供一种接入网络的选择方法，包括： A fifth aspect of the present invention provides a method for selecting an access network, including:

接入网络发现和选择功能 ANDSF模块向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 The access network discovery and selection function ANDSF module sends an access network selection policy to the user equipment UE, where the access network selection policy includes: a radio access technology RAT priority of the service and a corresponding access when the RAT priority takes effect. a load threshold of the network device; the access network selection policy is used by the UE to determine an access network of the UE service according to the access network selection policy and load information of the access network device.

本发明第六方面是提供一种接入网络的选择方法，包括： A sixth aspect of the present invention provides a method for selecting an access network, including:

接入网设备向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 The access network device sends the information of the access network device to the user equipment UE, where the information of the access network device includes the load information of the access network device or the access tendency of the access network device; the information of the access network device And determining, by the UE, an access network of the UE service according to information of the access network device and an access network selection policy provided by an access network discovery and selection function ANDSF module.

结合本发明第六方面，在本发明第六方面的第一种实施方式下，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 With reference to the sixth aspect of the present invention, in a first implementation manner of the sixth aspect, the information about the access network device further includes an access factor, where the access factor is used by the UE to generate a random Comparing the factor with the access factor, and obtaining a comparison result, if the comparison result meets a preset rule, the UE selects an access network according to the access tendency indication; if the comparison result does not meet the preset rule, Then the UE waits for the preset time to generate a new random factor again.

本发明第七方面是提供一种接入网设备，包括： A seventh aspect of the present invention provides an access network device, including:

获得模块，用于获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； And an obtaining module, configured to obtain a service access policy of the user equipment UE, where the service access policy is obtained according to an access network selection policy provided by the ANDSF module for the UE according to the access network discovery and selection function;

选择模块，用于根据所述业务接入策略为所述 UE的业务选择接入网络。结合本发明第七方面，在本发明第七方面的第一种实施方式下，所述业务接入策略包括： And a selection module, configured to select an access network for the service of the UE according to the service access policy. With reference to the seventh aspect of the present invention, in the first embodiment of the seventh aspect of the present invention, the industry Access policies include:

结合本发明第七方面或第七方面的第一种实施方式，在本发明第七方面的第二种实施方式下，所述获得模块还用于：获得所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识；所述选择模块还用于：根据所述 RAB的标识或者所述 UE的标识 , 为所述 UE的业务选择接入网络。 With reference to the seventh aspect of the present invention or the first embodiment of the seventh aspect, in the second implementation manner of the seventh aspect, the obtaining module is further configured to: obtain a wireless connection corresponding to the service access policy The identifier of the bearer or the identifier of the UE is carried in. The selecting module is further configured to: select an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明第七方面，在本发明第七方面的第三种实施方式下，所述接入网设备还包括：发送模块，用于向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 With the seventh aspect of the present invention, in a third implementation manner of the seventh aspect, the access network device further includes: a sending module, configured to send an access indication to the UE, where the access indication is Carrying a service identifier and/or the access network identifier.

结合本发明第七方面的第三种实施方式，在本发明第七方面的第四种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 With reference to the third implementation manner of the seventh aspect of the present invention, in a fourth implementation manner of the seventh aspect, the access network identifier is an access network type and/or an identifier of an access point in the access network. .

结合本发明第七方面的第三种实施方式，在本发明第七方面的第五种实施方式下，所述发送模块还用于：向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 With reference to the third embodiment of the seventh aspect of the present invention, in a fifth implementation manner of the seventh aspect, the sending module is further configured to: send a command message to the UE, where the command message is used to indicate that the UE complies with The network side command does not make its own decision to access the network.

结合本发明第七方面的第五种实施方式，在本发明第七方面的第六种实施方式下，所述命令消息具体为网络支持 WLAN卸载能力的指示。 With reference to the fifth implementation manner of the seventh aspect of the present invention, in the sixth implementation manner of the seventh aspect, the command message is specifically an indication that the network supports the WLAN offload capability.

结合本发明第七方面的第二种实施方式，在本发明第七方面的第七种实施方式下，所述选择模块具体用于：按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 With reference to the second embodiment of the seventh aspect of the present invention, in the seventh implementation manner of the seventh aspect of the present invention, the selecting module is specifically configured to: determine, according to the order of the RAT priority of the service from high to low, Whether the load of the network exceeds the preset percentage; if it exceeds, the network with the second highest priority is selected as the access network of the UE.

结合本发明第七方面，在本发明第七方面的第八种实施方式下，获得模块包括：第一接收单元，用于接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成；或者，第二接收单元，用于接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。本发明第八方面是提供一种核心网设备，包括： With reference to the seventh aspect of the present invention, in an eighth implementation manner of the seventh aspect, the obtaining module includes: a first receiving unit, configured to receive a service access policy sent by a core network device, where the service access policy is The core network is generated according to the access network selection policy provided by the UE or the ANDSF module; or the second receiving unit is configured to receive a service access policy sent by the UE, where the service access policy is The UE is generated according to an access network selection policy provided by the ANDSF module. An eighth aspect of the present invention provides a core network device, including:

获得模块，用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略； Obtaining a module, configured to obtain an access network discovery and selection function, and an access network selection policy provided by the ANDSF module to the user equipment UE;

生成模块，用于根据所述接入网络选择策略为所述 UE生成业务接入策略，并将所述 UE的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 a generating module, configured to generate a service access policy for the UE according to the access network selection policy, and send the service access policy of the UE to the access network device, so that the access network device is configured according to the The service access policy of the UE selects an access network for the service of the UE.

结合本发明第八方面，在本发明第八方面的第一种实施方式下，所述业务接入策略包括： With reference to the eighth aspect of the present invention, in the first implementation manner of the eighth aspect, the service access policy includes:

结合本发明第八方面或第八方面的第一种实施方式，在本发明第八方面的第二种实施方式下，还包括： With reference to the eighth aspect of the present invention or the first embodiment of the eighth aspect, in a second implementation manner of the eighth aspect of the present invention,

发送模块，用于发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 a sending module, configured to send the identifier of the radio access bearer RAB corresponding to the service access policy or the identifier of the UE to the access network device, so that the access network device is based on the identifier of the RAB or the UE The identifier identifies an access network for the service of the UE.

结合本发明第八方面，在本发明第八方面的第三种实施方式下，生成模块具体包括： With reference to the eighth aspect of the present invention, in a third implementation manner of the eighth aspect of the present invention, the generating the module specifically includes:

第一生成单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略； a first generating unit, configured to determine a service carried in each radio access bearer RAB of the UE, and determine an ANDSF policy corresponding to each service, and generate a service access policy for the UE according to the ANDSF policy;

或者，第二生成单元，用于确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略。 Or the second generating unit is configured to determine a service carried in all the RABs of the UE, and determine an ANDSF policy corresponding to the service, and generate a service access policy for the UE according to the ANDSF policy.

结合本发明第八方面的第一种实施方式，在本发明第八方面的第四种实施方式下，所述获得模块包括： With reference to the first embodiment of the eighth aspect of the present invention, in the fourth implementation manner of the eighth aspect of the present invention, the obtaining module includes:

第一接收单元，用于从 ANDSF模块接收所述 UE的接入网络选择策略；或者第二接收单元，用于接收 UE上传的接入网络选择策略，所述 UE 上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。本发明第九方面是提供一种用户设备，包括： a first receiving unit, configured to receive an access network selection policy of the UE from the ANDSF module, or a second receiving unit, configured to receive an access network selection policy uploaded by the UE, where the access network selection policy uploaded by the UE is The UE is obtained from the ANDSF module. A ninth aspect of the present invention provides a user equipment, including:

接收模块，用于接收接入网设备发送的接入网选择指示； a receiving module, configured to receive an access network selection indication sent by the access network device;

选择模块，用于根据所述接入网选择指示选择接入网。 And a selecting module, configured to select an access network according to the access network selection indication.

结合本发明第九方面，在本发明第九方面的第一种实施方式下，还包括：获得模块，用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略； With reference to the ninth aspect of the present invention, in a first implementation manner of the ninth aspect of the present invention, the method further includes: an obtaining module, configured to obtain an access network selection policy provided by an ANDSF module;

生成模块，用于根据所述接入网络选择策略生成业务接入策略；发送模块，用于将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 a generating module, configured to generate a service access policy according to the access network selection policy, and a sending module, configured to send the generated service access policy to the access network device, so that the access network device is connected according to the service The ingress policy selects an access network for the services of the UE.

结合本发明第九方面的第一种实施方式，在本发明第九方面的第二种实施方式下，所述业务接入策略包括： With reference to the first embodiment of the ninth aspect of the present invention, in the second implementation manner of the ninth aspect, the service access policy includes:

结合本发明第九方面的第一种实施方式或第二种实施方式，在本发明第九方面的第三种实施方式下，所述发送模块还用于：将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 With reference to the first embodiment or the second embodiment of the ninth aspect of the present invention, in the third implementation manner of the ninth aspect of the present invention, the sending module is further configured to: The identifier of the radio access bearer RAB or the identifier of the UE is sent to the access network device, so that the access network device selects an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明第九方面的第一种实施方式，在本发明第九方面的第四种实施方式下，所述生成模块具体包括： With reference to the first embodiment of the ninth aspect of the present invention, in the fourth implementation manner of the ninth aspect of the present invention, the generating module specifically includes:

第一确定单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略； a first determining unit, configured to determine a service carried in each radio access bearer RAB of the UE, and determine an ANDSF policy corresponding to each service, and generate a service access policy according to the ANDSF policy;

或者，第二确定单元，用于确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略。 Or the second determining unit is configured to determine a service carried in all the RABs of the UE, and determine an ANDSF policy corresponding to the service, and generate a service access policy according to the ANDSF policy.

结合本发明第九方面，在本发明第九方面的第五种实施方式下，所述接入网选择指示中携带业务标识和 /或接入网络标识。 With reference to the ninth aspect of the present invention, in a fifth implementation manner of the ninth aspect of the present invention, the access network selection indication carries a service identifier and/or an access network identifier.

结合本发明第九方面第五种实施方式，在本发明第九方面的第六种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。结合本发明第九方面，在本发明第九方面的第六种实施方式下，所述接收模块还用于：接收接入网设备发送的命令消息，所述命令消息用于指示 UE 遵从网络侧命令而不得自行决策其接入网络； According to a fifth embodiment of the ninth aspect of the present invention, a sixth implementation of the ninth aspect of the present invention In the mode, the access network identifier is an access network type and/or an identifier of an access point in the access network. With reference to the ninth aspect of the present invention, in a sixth implementation manner of the ninth aspect, the receiving module is further configured to: receive a command message sent by the access network device, where the command message is used to indicate that the UE complies with the network side Commands may not make their own access to the network;

所述选择模块具体用于：根据所述命令消息停止根据 ANDSF 策略进行网络选择，并根据所述接入网选择指示确定接入网络。 The selecting module is specifically configured to: stop network selection according to the ANDSF policy according to the command message, and determine an access network according to the access network selection indication.

本发明第十方面是提供一种用户设备，包括： A tenth aspect of the present invention provides a user equipment, including:

获得模块，用于获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的；确定模块，用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 Obtaining a module, configured to obtain an access network selection policy and information of an access network device, where the access network selection policy is provided by the ANDSF module for the UE by the access network discovery and selection function; The incoming network selection policy and the information of the access network device determine the access network.

结合本发明第十方面，在本发明第十方面的第一种实施方式下，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 With reference to the tenth aspect of the present invention, in the first implementation manner of the tenth aspect of the present invention, the information about the access network device includes: load information of the access network device or an access tendency of the access network device.

结合本发明第十方面的第一种实施方式，在本发明第十方面的第二种实施方式下，所述接入网设备的接入倾向包括： With reference to the first embodiment of the tenth aspect of the present invention, in the second implementation manner of the tenth aspect of the present invention, the access tendency of the access network device includes:

接入网设备倾向所述 UE接入第一网络，或者倾向所述 UE接入第二网络，或者不干涉所述 UE的接入网选择。 The access network device prefers the UE to access the first network, or prefers the UE to access the second network, or does not interfere with the access network selection of the UE.

结合本发明第十方面，在本发明第十方面的第三种实施方式下，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 With reference to the tenth aspect of the present invention, in a third implementation manner of the tenth aspect of the present invention, the access network selection policy includes: a radio access technology RAT priority of a radio access bearer RAB, where the RAT priority takes effect The load threshold of the corresponding access network device.

结合本发明第十方面的第三种实施方式，在本发明第十方面的第四种实施方式下，所述确定模块具体包括： With reference to the third embodiment of the tenth aspect of the present invention, in the fourth implementation manner of the tenth aspect of the present invention, the determining module specifically includes:

第一确定单元，用于根据接入网设备的负载信息，确定使用的接入网络选择策略； a first determining unit, configured to determine, according to load information of the access network device, an access network selection policy used;

第二确定单元，用于根据接入网络选择策略确定优先使用的接入网络。结合本发明第十方面的第一种实施方式或第二种实施方式，在本发明第十方面的第五实施方式下，所述确定模块具体用于：在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。 And a second determining unit, configured to determine, according to the access network selection policy, an access network that is preferentially used. With reference to the first embodiment or the second embodiment of the tenth aspect of the present invention, in the fifth implementation manner of the tenth aspect of the present invention, the determining module is specifically configured to: In the incoming network, the access network is selected according to the access tendency indication.

结合本发明第十方面的第五实施方式，在本发明第十方面的第六实施方式下，所述接入网设备的信息中还包括接入因子，所述用户设备还包括：生成模块，用于生成随机因子； With reference to the fifth embodiment of the tenth aspect of the present invention, in the sixth implementation manner of the tenth aspect of the present invention, the information about the access network device further includes an access factor, and the user equipment further includes: Generating a module for generating a random factor;

比较模块，用于将所述随机因子与所述接入因子相比较，获得比较结果；则所述确定模块具体用于：如果所述比较结果符合预设规则，根据所述接入倾向指示选择接入网络；所述生成模块还用于：如果所述比较结果不符合预设规则，等待预设时间后再次生成新的随机因子。 a comparison module, configured to compare the random factor with the access factor to obtain a comparison result; and the determining module is specifically configured to: if the comparison result meets a preset rule, select according to the access tendency indication The generating module is further configured to: if the comparison result does not meet the preset rule, wait for the preset time to generate a new random factor again.

本发明第十一方面是提供一种接入网络发现和选择功能 ANDSF模块，包括： An eleventh aspect of the present invention provides an access network discovery and selection function ANDSF module, including:

发送模块，用于向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 a sending module, configured to send an access network selection policy to the user equipment UE, where the access network selection policy includes: a radio access technology RAT priority of the service, and a load of the access network device corresponding to the RAT priority Threshold; the access network selection policy is used by the UE to determine an access network of the UE service according to the access network selection policy and load information of an access network device.

本发明第十二方面是提供一种接入网设备，包括： A twelfth aspect of the present invention provides an access network device, including:

发送模块，用于向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 a sending module, configured to send information of the access network device to the user equipment UE, where the information of the access network device includes load information of the access network device or an access tendency of the access network device; The information is used by the UE to determine an access network of the UE service according to information of the access network device and an access network selection policy provided by an ANDSF module of an access network discovery and selection function.

结合本发明第十二方面，在本发明第十二方面的第一种实施方式下，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 With reference to the twelfth aspect of the present invention, in the first implementation manner of the twelfth aspect, the information of the access network device further includes an access factor, where the access factor is used by the UE to generate The random factor is compared with the access factor, and a comparison result is obtained. If the comparison result meets a preset rule, the UE selects an access network according to the access tendency indication; if the comparison result does not meet the preset Rule, the UE waits for the preset time to generate a new random factor again.

本发明第十三方面是提供一种接入网设备，包括： A thirteenth aspect of the present invention provides an access network device, including:

第一处理器，用于获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； a first processor, configured to obtain a service access policy of the user equipment UE, where the service access policy is obtained according to an access network selection policy provided by the ANDSF module for the UE according to an access network discovery and selection function;

第二处理器，用于根据所述业务接入策略为所述 UE的业务选择接入网络。 And a second processor, configured to select an access network for the service of the UE according to the service access policy.

结合第十三方面，在本发明第十三方面的第一种实施方式下，所述业务接入策略包括： With reference to the thirteenth aspect, in the first embodiment of the thirteenth aspect of the present invention, the service Access policies include:

结合第十三方面或第十三方面的第一种实施方式，在本发明第十三方面的第二种实施方式下，还包括： In conjunction with the thirteenth aspect or the first embodiment of the thirteenth aspect, in the second embodiment of the thirteenth aspect of the present invention,

第三处理器，用于获得所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识； a third processor, configured to obtain an identifier of the radio access bearer RAB corresponding to the service access policy or an identifier of the UE;

则所述第二处理器具体用于：根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 The second processor is specifically configured to: select an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合第十三方面，在本发明第十三方面的第三种实施方式下，还包括：发送器，用于向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 With reference to the thirteenth aspect, in a third implementation manner of the thirteenth aspect of the present invention, the method further includes: a transmitter, configured to send an access indication to the UE, where the access indication carries a service identifier and/or The access network identifier.

结合本发明第十三方面的第三种实施方式，在本发明第十三方面的第四种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 With reference to the third embodiment of the thirteenth aspect of the present invention, in the fourth implementation manner of the thirteenth aspect of the present invention, the access network identifier is an access network type and/or an access point in the access network. Logo.

结合本发明第十三方面的第三种实施方式，在本发明第十三方面的第五种实施方式下，所述发送器还用于：向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 With the third embodiment of the thirteenth aspect of the present invention, in a fifth implementation manner of the thirteenth aspect of the present invention, the transmitter is further configured to: send a command message to the UE, where the command message is used to indicate The UE may not make its own decision to access the network by following the network side commands.

结合本发明第十三方面的第五种实施方式，在本发明第十三方面的第六种实施方式下，所述命令消息具体为网络支持 WLAN卸载能力的指示。 With reference to the fifth implementation manner of the thirteenth aspect of the present invention, in the sixth implementation manner of the thirteenth aspect of the present invention, the command message is specifically an indication that the network supports the WLAN offload capability.

结合本发明第十三方面的第二种实施方式，在本发明第十三方面的第七种实施方式下，所述第二处理器具体用于： With reference to the second embodiment of the thirteenth aspect of the present invention, in the seventh embodiment of the thirteenth aspect of the present invention, the second processor is specifically configured to:

按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 According to the order of the RAT priorities of the services from high to low, it is determined whether the load of the corresponding network exceeds a preset percentage; if exceeded, the network with the second highest priority is selected as the access network of the UE.

结合本发明第十三方面的第二种实施方式，在本发明第十三方面的第八种实施方式下，还包括： With reference to the second embodiment of the thirteenth aspect of the present invention, in the eighth embodiment of the thirteenth aspect of the present invention,

接收器，用于接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成；或者，用于接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。 a receiver, configured to receive a service access policy sent by the core network device, where the service access policy is configured by the core network according to an access network selection policy provided by the UE or the ANDSF module Or, configured to receive a service access policy sent by the UE, where the service access policy is generated by the UE according to an access network selection policy provided by the ANDSF module.

本发明第十四方面是提供一种核心网设备，包括： A fourteenth aspect of the present invention provides a core network device, including:

第一处理器，用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略； a first processor, configured to obtain an access network discovery and selection function, and an access network selection policy provided by the ANDSF module to the user equipment UE;

第二处理器，用于根据所述接入网络选择策略为所述 UE生成业务接入策略； a second processor, configured to generate a service access policy for the UE according to the access network selection policy;

发送器，用于将所述 UE的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 And a transmitter, configured to send the service access policy of the UE to the access network device, so that the access network device selects an access network for the service of the UE according to the service access policy of the UE.

结合本发明第十四方面，在本发明第十四方面的第一种实施方式下，所述业务接入策略包括： With reference to the fourteenth aspect of the present invention, in the first implementation manner of the fourteenth aspect of the present invention, the service access policy includes:

结合本发明第十四方面或第十四方面的第一种实施方式，在本发明第十四方面的第二种实施方式下，所述发送器还用于发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 With the first embodiment of the fourteenth aspect or the fourteenth aspect of the present invention, in the second implementation manner of the fourteenth aspect of the present invention, the transmitter is further configured to send the service access policy corresponding to The radio access bears the identifier of the RAB or the identifier of the UE to the access network device, so that the access network device selects an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

结合本发明第十四方面，在本发明第十四方面的第三种实施方式下，所述第二处理器具体用于： With reference to the fourteenth aspect of the present invention, in the third embodiment of the fourteenth aspect of the present invention, the second processor is specifically configured to:

确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略； Determining the services carried in the radio access bearer RAB of the UE, and determining an ANDSF policy corresponding to each service, and generating a service access policy for the UE according to the ANDSF policy;

或者，确定 UE 的全部 RAB 中承载的业务，并确定所述业务对应的 Or determining a service carried in all RABs of the UE, and determining corresponding to the service

ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略。 And an ANDSF policy, generating a service access policy for the UE according to the ANDSF policy.

结合本发明第十四方面，在本发明第十四方面的第四种实施方式下，还包括： In conjunction with the fourteenth aspect of the present invention, in a fourth embodiment of the fourteenth aspect of the present invention, the method further includes:

接收器，用于从 ANDSF模块接收所述 UE的接入网络选择策略；或者，用于接收 UE上传的接入网络选择策略，所述 UE上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。 a receiver, configured to receive an access network selection policy of the UE from an ANDSF module; or, configured to receive an access network selection policy uploaded by the UE, where the access network selection policy uploaded by the UE is The UE is obtained from the ANDSF module.

本发明第十五方面是提供一种用户设备，包括： A fifteenth aspect of the present invention provides a user equipment, including:

接收器，用于接收接入网设备发送的接入网选择指示； a receiver, configured to receive an access network selection indication sent by the access network device;

第一处理器，用于根据所述接入网选择指示选择接入网。 The first processor is configured to select an access network according to the access network selection indication.

结合本发明第十五方面，在本发明第十五方面的第一种实施方式下，还包括： According to a fifteenth aspect of the present invention, in a first embodiment of the fifteenth aspect of the present invention,

第二处理器，用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略； a second processor, configured to obtain an access network discovery and selection function, and an access network selection policy provided by the ANDSF module;

第三处理器，用于根据所述接入网络选择策略生成业务接入策略；发送器，用于将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 a third processor, configured to generate a service access policy according to the access network selection policy, where the transmitter is configured to send the generated service access policy to the access network device, so that the access network device is configured according to the The service access policy selects an access network for the service of the UE.

结合本发明第十五方面的第一种实施方式，在本发明第十五方面的第二种实施方式下，所述业务接入策略包括： With reference to the first embodiment of the fifteenth aspect of the present invention, in the second implementation manner of the fifteenth aspect, the service access policy includes:

结合本发明第十五方面的第一种实施方式或第二种实施方式，在本发明第十五方面的第三种实施方式下，所述第一发送器还用于将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 With reference to the first embodiment or the second embodiment of the fifteenth aspect of the present invention, in the third implementation manner of the fifteenth aspect of the present invention, the first transmitter is further configured to access the service The identifier of the radio access bearer RAB corresponding to the policy or the identifier of the UE is sent to the access network device, so that the access network device selects access for the service of the UE according to the identifier of the RAB or the identifier of the UE. The internet.

结合本发明第十五方面的第二种实施方式，在本发明第十五方面的第四种实施方式下，所述第三处理器具体用于： With reference to the second embodiment of the fifteenth aspect of the present invention, in a fourth implementation manner of the fifteenth aspect of the present invention, the third processor is specifically configured to:

确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略； Determining the services carried in the radio access bearer RAB of the UE, and determining an ANDSF policy corresponding to each service, and generating a service access policy according to the ANDSF policy;

或者确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF 策略，根据所述 ANDSF策略生成业务接入策略。 Or determining a service carried in all the RABs of the UE, and determining an ANDSF policy corresponding to the service, and generating a service access policy according to the ANDSF policy.

结合本发明第十五方面的第一种实施方式，在本发明第十五方面的第六种实施方式下，所述接入网选择指示中携带业务标识和 /或接入网络标识。结合本发明第十五方面的第六种实施方式，在本发明第十五方面的第七种实施方式下，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 With reference to the first embodiment of the fifteenth aspect of the present invention, in the sixth implementation manner of the fifteenth aspect of the present invention, the access network selection indication carries a service identifier and/or an access network identifier. With reference to the sixth implementation manner of the fifteenth aspect of the present invention, in the seventh implementation manner of the fifteenth aspect of the present invention, the access network identifier is an access network type and/or an access point in the access network. Logo.

结合本发明第十五方面的第一种实施方式，在本发明第十五方面的第八种实施方式下，所述接收器还用于：接收接入网设备发送的命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络； With reference to the first embodiment of the fifteenth aspect of the present invention, in the eighth implementation manner of the fifteenth aspect, the receiver is further configured to: receive a command message sent by the access network device, where the command is The message is used to indicate that the UE complies with the network side command and cannot make its own access to the network;

所述用户设备还包括：第四处理器，用于根据所述命令消息停止根据 ANDSF策略进行网络选择，以使所述第一处理器根据所述接入网选择指示确定接入网络。 The user equipment further includes: a fourth processor, configured to stop network selection according to the ANDSF policy according to the command message, so that the first processor determines the access network according to the access network selection indication.

本发明第十六方面是提供一种用户设备，包括： A sixteenth aspect of the present invention provides a user equipment, including:

第一处理器，用于获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的； a first processor, configured to obtain an access network selection policy and information of an access network device, where the access network selection policy is an access network discovery and selection function provided by the ANDSF module for the UE;

第二处理器，用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 And a second processor, configured to determine the access network according to the access network selection policy and the information of the access network device.

结合本发明第十六方面，在本发明第十六方面的第一种实施方式下，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 With reference to the sixteenth aspect of the present invention, in the first embodiment of the sixteenth aspect of the present invention, the information of the access network device includes: load information of the access network device or access inclination of the access network device.

结合本发明第十六方面的第一种实施方式，在本发明第十六方面的第二种实施方式下，所述接入网设备的接入倾向包括： With reference to the first embodiment of the sixteenth aspect of the present invention, in the second implementation manner of the sixteenth aspect of the present invention, the access tendency of the access network device includes:

结合本发明第十六方面，在本发明第十六方面的第三种实施方式下，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 With reference to the sixteenth aspect of the present invention, in a third implementation manner of the sixteenth aspect of the present invention, the access network selection policy includes: a radio access technology RAT priority of a radio access bearer RAB, the RAT priority The load threshold of the corresponding access network device when the level is valid.

结合本发明第十六方面的第三种实施方式，在本发明第十六方面的第四种实施方式下，所述第二处理器具体用于： With reference to the third embodiment of the sixteenth aspect of the present invention, in the fourth implementation manner of the sixteenth aspect of the present invention, the second processor is specifically configured to:

根据接入网设备的负载信息，确定使用的接入网络选择策略； Determining an access network selection policy to be used according to load information of the access network device;

根据接入网络选择策略确定优先使用的接入网络。 The preferential access network is determined according to the access network selection policy.

结合本发明第十六方面的第一种实施方式或第二种实施方式，在本发明第十六方面的第五种实施方式下，所述第二处理器具体用于： In conjunction with the first or second embodiment of the sixteenth aspect of the present invention, in the present invention In a fifth implementation manner of the sixteenth aspect, the second processor is specifically configured to:

在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。 In the network that the access network selection policy allows access, the access network is selected according to the access tendency indication.

结合本发明第十六方面的第五种实施方式，在本发明第十六方面的第六种实施方式下，还包括： According to a fifth embodiment of the sixteenth aspect of the present invention, in a sixth implementation manner of the sixteenth aspect of the present invention,

第三处理器，用于生成随机因子；将所述随机因子与所述接入因子相比较，获得比较结果； a third processor, configured to generate a random factor; compare the random factor with the access factor to obtain a comparison result;

如果所述比较结果符合预设规则，所述第二处理器根据所述接入倾向指示选择接入网络； If the comparison result meets a preset rule, the second processor selects an access network according to the access tendency indication;

如果所述比较结果不符合预设规则，所述第三处理器等待预设时间后再次生成新的随机因子。 If the comparison result does not meet the preset rule, the third processor waits for the preset time to generate a new random factor again.

本发明第十七方面是提供一种接入网络发现和选择功能 ANDSF模块，包括： A seventeenth aspect of the present invention provides an access network discovery and selection function ANDSF module, including:

发送器，用于向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 a transmitter, configured to send an access network selection policy to the user equipment UE, where the access network selection policy includes: a radio access technology RAT priority of the service, and a load of the access network device corresponding to the RAT priority Threshold; the access network selection policy is used by the UE to determine an access network of the UE service according to the access network selection policy and load information of an access network device.

本方面第十八方面是提供一种接入网设备，包括： The eighteenth aspect of the present invention provides an access network device, including:

发送器，用于向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 a transmitter, configured to send information of the access network device to the user equipment UE, where the information of the access network device includes load information of the access network device or an access tendency of the access network device; The information is used by the UE to determine an access network of the UE service according to information of the access network device and an access network selection policy provided by an ANDSF module of an access network discovery and selection function.

结合本发明第十八方面，在本发明第十八方面的第一种实施方式下，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 With reference to the eighteenth aspect of the present invention, in the first implementation manner of the eighteenth aspect, the information of the access network device further includes an access factor, where the access factor is used by the UE to generate The random factor is compared with the access factor, and a comparison result is obtained. If the comparison result meets a preset rule, the UE selects an access network according to the access tendency indication; if the comparison result does not meet the preset Rule, the UE waits for the preset time to generate a new random factor again.

本发明实施例提供的方案，其有益效果为：在接入网设备控制的接入 ***与 ANDSF提供的策略相冲突时，可以为 UE选择最为合适的接入网络。附图说明图 1是本发明实施一提供的接入网络的选择方法流程图图 2为本发明实施例二提供的接入网络的选择方法流程图图 3为本发明实施三提供的接入网络的选择方法流程图图 4为本发明实施三提供的接入网络的选择方法又一流程图图 5为本发明实施例四提供的接入网络的选择方法流程图图 6为本发明实施例五提供的接入网络的选择方法流程图图 7为本发明实施例六提供的接入网络的选择方法流程图图 8为本发明实施例七提供的接入网设备的结构示意图；图 9为本发明实施例七提供的接入网设备的又一结构示意图；图 10为本发明实施例八提供的核心网设备的结构示意图；图 11为本发明实施例八提供的核心网设备的又一结构示意图图 12为本发明实施例九提供的用户设备的结构示意图；图 13为本发明实施例九提供的用户设备的又一结构示意图；图 14为本发明实施例十提供的用户设备的结构示意图；图 15为本发明实施例十提供的用户设备的又一结构示意图图 16为本发明实施例十一提供的 ANDSF模块的结构示意图图 17为本发明实施例十二提供的接入网设备的结构示意图图 18为本发明实施例十三提供的接入网设备的结构示意图图 19为本发明实施例十三提供的接入网设备的又一结构示意图图 20为本发明实施例十三提供的接入网设备的再一结构示意图图 21为本发明实施例十三提供的接入网设备的另一结构示意图图 22为本发明实施例十四提供的核心网设备的结构示意图；图 23为本发明实施例十四提供的核心网设备的又一结构示意图图 24为本发明实施例十五提供的用户设备的结构示意图；图 25为本发明实施例十五提供的用户设备的又一结构示意图；图 26为本发明实施例十五提供的用户设备的再一结构示意图；图 27为本发明实施例十六提供的用户设备的结构示意图；图 28为本发明实施例十六提供的用户设备的再一结构示意图；图 29为本发明实施例十七提供的 ANDSF模块的结构示意图; 图 30为本发明实施例十八提供的接入网设备的结构示意图。具体实施方式为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 The solution provided by the embodiment of the present invention has the beneficial effects that: when the access system controlled by the access network device conflicts with the policy provided by the ANDSF, the most suitable access network may be selected for the UE. 1 is a flowchart of a method for selecting an access network according to Embodiment 1 of the present invention. FIG. 2 is a flowchart of a method for selecting an access network according to Embodiment 2 of the present invention. FIG. 3 is an access network provided by Embodiment 3 of the present invention. FIG. 4 is a flowchart of a method for selecting an access network according to Embodiment 4 of the present invention. FIG. 6 is a flowchart of a method for selecting an access network according to Embodiment 4 of the present invention. FIG. FIG. 7 is a flowchart of a method for selecting an access network according to Embodiment 6 of the present invention. FIG. 8 is a schematic structural diagram of an access network device according to Embodiment 7 of the present invention; FIG. 10 is a schematic structural diagram of a core network device according to Embodiment 8 of the present invention; FIG. 11 is a schematic structural diagram of a core network device according to Embodiment 8 of the present invention; FIG. 12 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention; FIG. 13 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention; FIG. 15 is a schematic structural diagram of a user equipment according to Embodiment 11 of the present invention. FIG. 16 is a schematic structural diagram of an ANDSF module according to Embodiment 11 of the present invention. FIG. FIG. 18 is a schematic structural diagram of an access network device according to Embodiment 13 of the present invention. FIG. 19 is another schematic structural diagram of an access network device according to Embodiment 13 of the present invention. FIG. 21 is a schematic diagram of another structure of an access network device according to Embodiment 13 of the present invention. FIG. 22 is a schematic diagram of another embodiment of the access network device according to Embodiment 13 of the present invention. FIG. 23 is a schematic structural diagram of a user equipment according to Embodiment 14 of the present invention; FIG. 25 is a schematic structural diagram of a user equipment according to Embodiment 15 of the present invention; FIG. 26 is a schematic structural diagram of another embodiment of a user equipment according to Embodiment 15 of the present invention; FIG. Structure of the user equipment providing sixteen schematic; Fig. 28 a schematic structural diagram of another embodiment of a user equipment provided in the sixteen embodiment of the present invention; 29 is a schematic structural diagram of an ANDSF module according to Embodiment 17 of the present invention; and FIG. 30 is a schematic structural diagram of an access network device according to Embodiment 18 of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

图 1是本发明实施例一提供的接入网络的选择方法流程图，如图 1所示，该方法包括： 1 is a flowchart of a method for selecting an access network according to Embodiment 1 of the present invention. As shown in FIG. 1, the method includes:

101、接入网设备获得 UE的业务接入策略，该 UE的业务接入策略是根据 ANDSF模块为 UE提供的接入网络选择策略得到的。 101. The access network device obtains a service access policy of the UE, where the service access policy of the UE is obtained according to an access network selection policy provided by the ANDSF module for the UE.

102、根据业务接入策略为 UE的业务选择接入网络。 102. Select an access network for the service of the UE according to the service access policy.

这里需要说明的是，业务接入策略可以为无线接入承载 ( Radio Access It should be noted that the service access policy may be a radio access bearer (Radio Access).

Bear, 简称为： RAB )级别的接入策略，或者为 UE级别的接入策略。 UE的业务承载在一个或多个 RAB上接入网络，对于 RAB级别的接入策略， RAB 的标识与业务接入策略相对应，对于 UE级别的接入策略， UE的标识与业务接入策略相对应。对于 RAB 级别的接入策略，多个 RAB 的无线接入技术 ( Radio Access Technology, 简称为： RAT )优先级可以相同也可以不同。对于 UE级别的接入策略，承载 UE业务的全部 RAB的 RAT优先级均相同。 UE级别的接入策略主要可以用于 UE不支持两种或两种以上的网络（如第三代合作伙伴计划（ 3"¹ Generation Partner Project, 简称为： 3GPP )和无线局域网（Wireless Local Area Networks, 简称为： WLAN ) ) 同时传输时，网络侧无法将不同的 RAB承载成不同的 RAT优先级。 Bear, referred to as: RAB) access policy, or UE-level access policy. The UE's service bearer is connected to the network on one or more RABs. For the RAB-level access policy, the identifier of the RAB corresponds to the service access policy. For the UE-level access policy, the UE's identity and service access policy. Corresponding. For the access policy of the RAB level, the radio access technology (Radio Access Technology, RAT for short) of multiple RABs may have the same or different priorities. For the UE-level access policy, the RAT priorities of all RABs carrying the UE service are the same. The UE-level access policy can be mainly used for UEs not supporting two or more networks (such as the 3" ¹ Generation Partner Project (3GPP) and the Wireless Local Area Networks (Wireless Local Area Networks). , hereinafter referred to as: WLAN)) When transmitting simultaneously, the network side cannot carry different RABs into different RAT priorities.

一种实施方式下， 101 之后，该方法还可以包括：获得业务接入策略对应的 RAB的标识或者 UE的标识；则 102可以包括：根据 RAB的标识或者 UE的标识 , 为 UE的业务选择接入网络。 In an embodiment, after the method, the method may further include: obtaining an identifier of the RAB corresponding to the service access policy or an identifier of the UE; and the method 102 may include: selecting, according to the identifier of the RAB or the identifier of the UE, the service of the UE Into the network.

具体的，业务接入策略可以包括：业务的 RAT优先级，业务允许接入和 /或禁止接入的接入点信息；和 /或，业务允许接入和 /或禁止接入的时间信息；和 /或，业务允许接入和 /或禁止接入的地址信息。其中，对于 RAB级别的接入策略可以包括： RAB的 RAT优先级， RAB允许接入和 /或禁止接入的接入点信息；和 /或， RAB允许接入和 /或禁止接入的时间信息；和 /或， RAB允许接入和 /或禁止接入的地址信息。对于 UE级别的接入策略可以包括： UE的 RAT优先级， UE允许接入和 /或禁止接入的接入点信息；和 /或， UE允许接入和 /或禁止接入的时间信息；和 /或， UE允许接入和 /或禁止接入的地址信息。 Specifically, the service access policy may include: a RAT priority of the service, access point information that the service allows access and/or prohibition of access; and/or time information that the service allows access and/or prohibition of access; And/or address information that the service allows access and/or access. The access policy for the RAB level may include: a RAT priority of the RAB, an access point information that the RAB allows access and/or prohibition of access; and/or a time that the RAB allows access and/or prohibition of access. Information; and/or, the RAB allows access and/or barred access to address information. The UE-level access policy may include: a RAT priority of the UE, access point information that the UE allows to access and/or prohibit access; and/or time information that the UE allows access and/or prohibition of access; And/or, the UE allows access and/or barred access to address information.

对于上述 RAB级别的接入策略，可以根据 RAB上承载的业务判断业务对应的 ANDSF策略，根据该策略生成 RAB级别的接入策略发送给接入网设备，举例而言，假设 ANDSF模块为 UE提供的接入网选择策略是针对端口号为 80的业务，可以通过 3GPP技术接入网络，或者 WLAN技术接入网络，并且优先使用 3GPP技术接入网络。而 CN判断端口号为 80的业务承载在 RAB ID=1的 RAB上，则上述根据接入网络选择策略得到 RAB级别的接入策略即为： RAB ID=1的 RAB优先使用 3GPP技术接入网络，其次使用 WLAN技术接入网络。 For the foregoing access policy of the RAB level, the ANDSF policy corresponding to the service is determined according to the service carried on the RAB, and the access policy of the RAB level is generated according to the policy and sent to the access network device. For example, the ANDSF module is provided for the UE. The access network selection policy is for a service with port number 80, which can access the network through 3GPP technology, or access the network through WLAN technology, and preferentially access the network using 3GPP technology. The CN determines that the service with the port number of 80 is carried on the RAB with the RAB ID=1. The access policy according to the access network selection policy is RAB-level. The RAB with the RAB ID=1 preferentially uses the 3GPP technology to access the network. Second, use WLAN technology to access the network.

对于上述 UE级别的接入策略，可以根据 UE承载的所有业务判断业务对应的 ANDSF策略 , 根据该策略生成 UE级别的接入策略发送给接入网设备 , 举例而言，假设 ANDSF模块为 UE提供的接入网选择策略是针对端口号为 80的业务，可以通过 3 GPP技术接入网络，或者 WLAN技术接入网络，并且优先使用 3GPP技术接入网络。而 CN判断端口号为 80的业务承载在该 UE 的某个或多个 RAB上，则上述根据接入网络选择策略得到 UE的业务接入策略即为：该 UE优先使用 3GPP技术接入网络，其次使用 WLAN技术接入网络。 For the above-mentioned UE-level access policy, the ANDSF policy corresponding to the service is determined by the UE, and the UE-level access policy is generated and sent to the access network device according to the policy. For example, the ANDSF module is provided for the UE. The access network selection policy is for a service with port number 80, which can access the network through 3GPP technology, or access the network through WLAN technology, and preferentially access the network using 3GPP technology. The CN determines that the service with the port number of 80 is carried on the one or more RABs of the UE, and the foregoing service access policy of the UE is obtained according to the access network selection policy: the UE preferentially accesses the network by using the 3GPP technology. Second, use WLAN technology to access the network.

接入网设备可以通过如下几种不同的方式获得 UE的业务接入策略：第一种方式为： UE从 ANDSF模块获取接入网选择策略并上传至核心网设备，核心网设备根据 UE上传的接入网选择策略生成 UE的业务接入策略发送给接入设备。 The access network device can obtain the service access policy of the UE in the following different manners: The first mode is: the UE obtains the access network selection policy from the ANDSF module and uploads it to the core network device, and the core network device uploads according to the UE. The access network selection policy generates a service access policy of the UE and sends the service access policy to the access device.

第二种方式为：核心网设备从 ANDSF模块直接获取 UE的接入网选择策略，并根据 UE的接入网选择策略生成 UE的业务接入策略发送给接入网设备。 The second mode is: the core network device directly obtains the access network selection policy of the UE from the ANDSF module, and generates a service access policy of the UE according to the access network selection policy of the UE and sends the service access policy to the access network device.

第三种方式为： UE从 ANDSF模块获取接入网选择策略，根据接入网选择策略接入网络，配置相应的 RAB进行数据传输，并根据接入网选择策略生成 UE的业务接入策略发送给接入网设备。 The third mode is: the UE obtains an access network selection policy from the ANDSF module, accesses the network according to the access network selection policy, configures the corresponding RAB for data transmission, and generates a policy according to the access network selection policy. The service access policy of the UE is sent to the access network device.

具体的，在 102中，根据业务接入策略为 UE的业务选择接入网络具体可以理解为：按照 RAB的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比，如果超过，选择优先级第二高的网络作为 UE的接入网络。例如，如果业务接入策略中优先级最高的网络，负载超过预设百分比，则选择优先级次高的网络作为 UE的接入网络；如果优先级第二高的网络负载超过预设百分比，则选择优先级第三高的网络作为 UE的接入网络，并以此类推。需要说明的是，不同网络可以设置相同或者不同的预设百分比，此处不做赞述。 Specifically, in 102, selecting an access network for the service of the UE according to the service access policy may be specifically: determining whether the load of the corresponding network exceeds a preset percentage according to the order of the RAB RAT priorities from high to low, if Exceeded, the network with the second highest priority is selected as the access network of the UE. For example, if the network with the highest priority in the service access policy exceeds the preset percentage, the network with the second highest priority is selected as the access network of the UE; if the network load with the second highest priority exceeds the preset percentage, The network with the third highest priority is selected as the access network of the UE, and so on. It should be noted that different networks may set the same or different preset percentages, which are not mentioned here.

在上述实施方式的基础上， 102之后，该方法还可以包括：向 UE发送接入指示，该接入指示中可以携带业务标识和 /或接入网络标识。这里所提到的业务标识可以是 RAB ID , 该 RAB ID指示此次接入网络操作所针对的 RAB , 也即所针对的业务。现有网络中，如 3GPP网络和 WLAN网络中，如果没有携带 RAB ID则可以有两种理解：其一是 UE可以自行根据 ANDSF策略判断接入哪些业务到 WLAN; 其二是 UE需要将所有业务接入到 WLAN, 这可能是由于 UE不支持 WLAN和 3GPP并行传输。所述的接入网络标识是表示网络指示 UE接入的接入网络的类型和 /或接入点的标识。其中接入网络类型可以隐式携带 , 即根据具体消息隐含指示接入网络的类型。 On the basis of the foregoing embodiment, after the method, the method may further include: sending an access indication to the UE, where the access indication may carry the service identifier and/or the access network identifier. The service identifier mentioned here may be a RAB ID, and the RAB ID indicates the RAB to which the access network operation is directed, that is, the service targeted. In an existing network, such as a 3GPP network and a WLAN network, if there is no RAB ID, there are two understandings: one is that the UE can determine which services to access to the WLAN according to the ANDSF policy; the second is that the UE needs to carry all services. Access to the WLAN, which may be due to the UE not supporting WLAN and 3GPP parallel transmission. The access network identifier is an identifier indicating the type of the access network and/or the access point that the network indicates to the UE. The type of the access network may be implicitly carried, that is, the type of the access network is implicitly indicated according to the specific message.

在上述实施例的基础上，在发送接入指示给 UE之前，该方法还可以包括：接入网设备向 UE发送命令消息 ,该命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。具体的可以通过广播的形式通知全部 UE, 也可以针对某个 UE釆用专用信令的方式进行通知。现有网络中，该命令具体的可以是显示的指示 UE遵从网络侧命令的指示，也可以是网络支持 WLAN 卸载功能的指示， UE根据该能力指示，判断不能自行决策接入 WLAN网络。 On the basis of the foregoing embodiment, before sending the access indication to the UE, the method may further include: the access network device sends a command message to the UE, where the command message is used to indicate that the UE complies with the network side command and cannot decide to connect itself. Into the network. Specifically, all UEs may be notified by means of broadcast, or may be notified by means of dedicated signaling for a certain UE. In the existing network, the command may specifically indicate that the UE complies with the command of the network side, or may be an indication that the network supports the WLAN offload function, and the UE determines that the WLAN network cannot be determined by itself according to the capability indication.

图 2为本发明实施例二提供的接入网络的选择方法流程图，该图 2所示的方法与图 1所示的方法的不同在于：图 1从接入网设备的角度描述整个接入网络选择的过程，而图 2是从核心网设备的角度描述整个接入网络选择的过程。虽然描述的角度不同，但图 2所示的整个接入网络的选择的过程与图 1所示的过程是相一致的。如图 2所示，该方法包括： 2 is a flowchart of a method for selecting an access network according to Embodiment 2 of the present invention. The method shown in FIG. 2 is different from the method shown in FIG. 1 in that: FIG. 1 describes the entire access from the perspective of an access network device. The process of network selection, and Figure 2 is a process of describing the entire access network selection from the perspective of the core network device. Although the described angles are different, the selection process of the entire access network shown in Fig. 2 is consistent with the process shown in Fig. 1. As shown in Figure 2, the method includes:

201、核心网设备获得 ANDSF模块提供给 UE的接入网络选择策略； 202、核心网设备根据接入网络选择策略为 UE生成业务接入策略，并将 UE的业务接入策略发送给接入网设备，使得接入网设备根据 UE的业务接入策略为 UE的业务选择接入网络。 201. The core network device obtains an access network selection policy provided by the ANDSF module to the UE. 202. The core network device generates a service access policy for the UE according to the access network selection policy, and sends the service access policy of the UE to the access network device, so that the access network device uses the service access policy of the UE as the service of the UE. Select to access the network.

具体的，业务接入策略可以包括：业务的 RAT优先级，业务允许接入和 /或禁止接入的接入点信息；和 /或，业务允许接入和 /或禁止接入的时间信息；和 /或，业务允许接入和 /或禁止接入的地址信息。这里需要说明的是，业务接入策略可以为 RAB级别的接入策略，或者为 UE级别的接入策略。对于 RAB 级别的接入策略， RAB的标识与业务接入策略相对应，对于 UE级别的接入策略 , UE的标识与业务接入策略相对应。 Specifically, the service access policy may include: a RAT priority of the service, access point information that the service allows access and/or prohibition of access; and/or time information that the service allows access and/or prohibition of access; And/or address information that the service allows access and/or access. It should be noted that the service access policy may be an access policy at the RAB level or an access policy at the UE level. For the access policy of the RAB level, the identifier of the RAB corresponds to the service access policy. For the UE-level access policy, the identifier of the UE corresponds to the service access policy.

一种实施方式下，上述方法中还可以包括：发送业务接入策略对应的 RAB 的标识或者 UE的标识给接入网设备，使得接入网设备根据 RAB的标识或者 UE的标识 , 为 UE的业务选择接入网络。 In an implementation manner, the foregoing method may further include: sending an identifier of the RAB corresponding to the service access policy or an identifier of the UE to the access network device, so that the access network device is the UE according to the identifier of the RAB or the identifier of the UE. The service chooses to access the network.

在上述实施方式的基础上， 202中提到的根据接入网络选择策略为 UE生成业务接入策略具体可以包括：确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据 ANDSF策略为 UE生成业务接入策略；或者，确定 UE的全部 RAB中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略为 UE生成业务接入策略。 On the basis of the above-mentioned embodiments, the generating a service access policy for the UE according to the access network selection policy mentioned in 202 may include: determining a service carried in each radio access bearer RAB of the UE, and determining corresponding to each service. The ANDSF policy is used to generate a service access policy for the UE according to the ANDSF policy. Alternatively, the service carried in all the RABs of the UE is determined, and the ANDSF policy corresponding to the service is determined, and the service access policy is generated for the UE according to the ANDSF policy.

而 201具体可以包括：核心网设备从 ANDSF模块接收 UE的接入网络选择策略；或者，核心网设备接收 UE上传的接入网络选择策略，而该 UE上传的接入网络选择策略为所述 UE从 ANDSF模块中获得的。 The specific configuration may include: the core network device receives the access network selection policy of the UE from the ANDSF module; or the core network device receives the access network selection policy uploaded by the UE, and the access network selection policy uploaded by the UE is the UE Obtained from the ANDSF module.

图 3为本发明实施例三提供的接入网络的选择方法流程图，该图 3所示的方法与图 1所示的方法的不同在于：图 1从接入网设备的角度描述整个接入网络选择的过程，而图 3是从 UE的角度描述整个接入网络选择的过程。虽然描述的角度不同，但图 3所示的整个接入网络的选择的过程与图 1所示的过程是相一致的。如图 3所示，该方法包括： FIG. 3 is a flowchart of a method for selecting an access network according to Embodiment 3 of the present invention. The method shown in FIG. 3 is different from the method shown in FIG. 1 in that: FIG. 1 describes the entire access from the perspective of an access network device. The process of network selection, and Figure 3 is a process of describing the entire access network selection from the perspective of the UE. Although the described angles are different, the selection process of the entire access network shown in Fig. 3 is consistent with the process shown in Fig. 1. As shown in Figure 3, the method includes:

301、 UE接收接入网设备发送的接入网选择指示。 301. The UE receives an access network selection indication sent by the access network device.

302、 UE根据所述接入网选择指示选择接入网。 302. The UE selects an access network according to the access network selection indication.

一种实施方式下，如图 4所示的方法， 301之前还可以包括： In an embodiment, as shown in FIG. 4, before 301, the method may further include:

300、 UE获得 ANDSF模块提供的接入网络选择策略，根据接入网络选择策略生成业务接入策略，并将生成的业务接入策略发送给接入网设备，使得接入网设备根据业务接入策略为 UE的业务选择接入网络。 300. The UE obtains an access network selection policy provided by the ANDSF module, generates a service access policy according to the access network selection policy, and sends the generated service access policy to the access network device, so that the UE obtains the access network selection policy. The access network device selects an access network for the service of the UE according to the service access policy.

一种实施方式下，该方法还可以包括：将业务接入策略对应的无线接入承载 RAB 的标识或者 UE 的标识发送给接入网设备；使得接入网设备根据 RAB的标识或者 UE的标识，为 UE的业务选择接入网络。 In an embodiment, the method may further include: sending, by the access network device, an identifier of the radio access bearer RAB or an identifier of the UE to the access network device; and causing the access network device to use the identifier of the RAB or the identifier of the UE. , select an access network for the UE's service.

在上述实施方式的基础上，在 300中，根据所述接入网络选择策略生成业务接入策略可以包括：确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据 ANDSF策略生成业务接入策略；或者，确定 UE的全部 RAB中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略生成业务接入策略。 On the basis of the foregoing embodiment, in 300, generating a service access policy according to the access network selection policy may include: determining a service carried in each radio access bearer RAB of the UE, and determining an ANDSF policy corresponding to each service. And generating a service access policy according to the ANDSF policy; or determining a service carried in all the RABs of the UE, and determining an ANDSF policy corresponding to the service, and generating a service access policy according to the ANDSF policy.

需要说明的是， 301 中提到的接入网选择指示中可以携带业务标识，和 / 或接入网络标识。其中，接入我拿过来标识可以为接入网络类型和 /或接入网络中接入点的标识。 It should be noted that the access network selection indication mentioned in 301 may carry a service identifier, and/or an access network identifier. Among them, the access I get can identify the identity of the access network type and/or the access point in the access network.

进一步的，该方法还可以包括： Further, the method may further include:

303、 UE接收接入网设备发送的命令消息，该命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络；根据命令消息停止根据 ANDSF 策略进行网络选择，并根据接入网选择指示确定接入网络。 303. The UE receives a command message sent by the access network device, where the command message is used to indicate that the UE complies with the network side command and cannot decide to access the network by itself; according to the command message, stop network selection according to the ANDSF policy, and select according to the access network. The indication determines the access network.

这里需要说明的是，本发明实施例中并不限制 303与 300〜302之间的发生顺序。接入网设备就可以随时向 UE发送命令消息。 It should be noted that the order of occurrence between 303 and 300-302 is not limited in the embodiment of the present invention. The access network device can send a command message to the UE at any time.

图 5为本发明实施例四提供的接入网络的选择方法流程图，如图 5所示，该方法包括： FIG. 5 is a flowchart of a method for selecting an access network according to Embodiment 4 of the present invention. As shown in FIG. 5, the method includes:

501、 UE获得 ANDSF模块提供的接入网络选择策略以及接入网设备的信息。 501. The UE obtains an access network selection policy provided by the ANDSF module and information about the access network device.

502、根据接入网络选择策略以及接入网设备的信息确定接入网络。 502. Determine an access network according to an access network selection policy and information of an access network device.

具体的，在 501中， UE获得的接入网选择策略可以但不限于包括：业务的 RAT优先级， RAT优先级生效时对应的接入网设备负载门限。例如，针对端口号为 80的业务，在 RAN负载小于 60%的时候，可以通过 3GPP接入技术，或者 WLAN接入技术接入网络，并且优先使用 3GPP接入。针对端口号为 80的业务，在 RAN负载大于 60%的时候，可以通过 3GPP接入技术，或者 WLAN接入技术接入网络，并且优先使用 WLAN接入。 Specifically, in 501, the access network selection policy obtained by the UE may be, but is not limited to, including: RAT priority, the corresponding access network device load threshold when the RAT priority takes effect. For example, for a service with port number 80, when the RAN load is less than 60%, the network can be accessed through the 3GPP access technology or the WLAN access technology, and the 3GPP access is preferentially used. For services with port number 80, when the RAN load is greater than 60%, the network can access the network through 3GPP access technology or WLAN access technology, and WLAN access is preferentially used.

接入网设备的信息可以但不限于包括两种，一种是接入网设备的负载，还有一种是接入网设备的接入倾向指示。所述接入倾向指示，指的是接入网设备希望 UE优先使用哪个接入网传输业务， RAN可以根据自身的负载情况进行判断，并给出相应的接入倾向指示。例如， RAN的负载较高，希望 UE 优先使用 WLAN, 或者 RAN的负载较低，希望 UE优先使用 3GPP。 The information of the access network device may include, but is not limited to, two types, one is a load of the access network device, and the other is an access tendency indication of the access network device. The access tendency indication refers to the access network device that the UE wants to preferentially use which access network to transmit the service, and the RAN can judge according to its own load condition, and give a corresponding access tendency indication. For example, the load of the RAN is high, and the UE is expected to use the WLAN preferentially, or the load of the RAN is low, and the UE is expected to preferentially use the 3GPP.

UE 可以通过如下方式获得接入网设备的信息： RAN 在广播控制信道 ( Broadcast Control Channel, 简称为： BCCH )上通过广播消息将 RAN侧的信息通知给全部 UE;或者， RAN在专用控制信道（ Dedicated Control Channel, 简称为： DCCH )上通过专用信令将 RAN侧的信息通知给特定 UE, 该 UE 是指上报了支持 WLAN卸载能力的 UE。 The UE may obtain the information of the access network device by: the RAN notifying the information of the RAN side to all UEs by using a broadcast message on a Broadcast Control Channel (BCCH); or, the RAN is on a dedicated control channel ( The Dedicated Control Channel (referred to as: DCCH) notifies the RAN side of the information to the specific UE through dedicated signaling, and the UE refers to the UE that has the WLAN offload capability.

具体的，在 502中，根据接入网络选择策略以及接入网设备的信息确定接入网络可以理解为： Specifically, in 502, determining the access network according to the access network selection policy and the information of the access network device may be understood as:

如果接入网设备的信息是接入网设备的负载，则根据接入网设备的负载确定可以使用的接入网络选择策略，然后根据可以使用的接入网络选择策略确定优先使用的接入网络。例如，如果 3GPP RAN负载超过 60%, 则根据该负载信息判断使用对应的接入网络选择策略，策略中指示此时 UE优先使用 WLAN, 则 UE会进行 WLAN接入。如果 3GPP RAN负载低于 60%, 则根据该负载信息判断使用对应的接入网络选择策略，策略中指示此时 UE优先使用 3GPP, 则 UE不会进行 WLAN接入。需要说明的是，不同网络可以设置相同或者不同的预设百分比，此处不做赞述。 If the information of the access network device is the load of the access network device, determine an access network selection policy that can be used according to the load of the access network device, and then determine the preferential access network according to the available access network selection policy. . For example, if the 3GPP RAN load exceeds 60%, the corresponding access network selection policy is determined according to the load information, and the policy indicates that the UE preferentially uses the WLAN at this time, and the UE performs WLAN access. If the 3GPP RAN load is less than 60%, the corresponding access network selection policy is determined according to the load information, and the policy indicates that the UE preferentially uses 3GPP, and the UE does not perform WLAN access. It should be noted that different networks may set the same or different preset percentages, which are not mentioned here.

如果接入网设备的信息是接入网设备的接入倾向指示，则 UE会在接入网络选择策略允许接入的网络中，根据接入倾向指示选择接入网络。其中的接入倾向指示包括倾向 UE使用 WLAN, 倾向 UE使用 3GPP, 或者不干涉 UE策略等等。 If the information of the access network device is an access tendency indication of the access network device, the UE selects the access network according to the access tendency indication in the network that the access network selection policy allows access. The indication of the access tendency includes the tendency for the UE to use the WLAN, the preference for the UE to use the 3GPP, or the non-interference UE policy, and the like.

例如，比如当 ANDSF策略为 UE针对端口号 80的业务优先使用 3GPP, 次选 WLAN。但此时网络侧接入倾向指示 UE优先使用 WLAN, 则 UE会按照网络侧的卸载指示优先尝试接入 WLAN。如果接入倾向指示为无倾向，则根据 ANDSF策略选择，如果倾向指示优选 3GPP , 即使 ANDSF指示对应业务 3GPP为低优先级， UE仍倾向将此业务使用 3GPP传输。 For example, when the ANDSF policy is used for the UE to preferentially use 3GPP for the port number 80 service, Secondary WLAN. If the network side access tendency indicates that the UE preferentially uses the WLAN, the UE will attempt to access the WLAN according to the offload indication on the network side. If the access tendency indication is no tendency, according to the ANDSF policy selection, if the preference indicates that 3GPP is preferred, even if the ANDSF indicates that the corresponding service 3GPP is low priority, the UE still tends to use this service for 3GPP transmission.

进一步的为了防止 UE受到接入倾向指示时集中接入 WLAN或 3GPP等网络，接入网设备的信息还可以包括接入因子。该接入因子的作用在于： UE 产生一个随机因子，通过该随机因子和接入因子比较决定是否根据接入倾向指示接入。例如接入因子为 0.7 , 而 UE产生的随机因子为 0.6 , 由于 0.6O.7 , UE根据接入指示接入，否则延迟一段时间后再次生成新的随机因子。 Further, in order to prevent the UE from being centrally connected to the WLAN or the 3GPP network when the UE is subjected to the access tendency indication, the information of the access network device may further include an access factor. The role of the access factor is: The UE generates a random factor, and the random factor and the access factor are compared to determine whether to access according to the access tendency. For example, the access factor is 0.7, and the random factor generated by the UE is 0.6. Because 0.6O.7, the UE accesses according to the access indication, otherwise the new random factor is generated again after a delay.

图 6为本发明实施例五提供的接入网络的选择方法流程图，该图 6所示的方法与图 5所示的方法的不同在于：图 5从 UE的角度描述整个接入网络选择的过程，而图 6是从 ANDSF模块的角度描述整个接入网络选择的过程。虽然描述的角度不同，但图 6所示的整个接入网络的选择的过程与图 5所示的过程是相一致的。如图 6所示，该方法包括： FIG. 6 is a flowchart of a method for selecting an access network according to Embodiment 5 of the present invention. The method shown in FIG. 6 is different from the method shown in FIG. 5 in that: FIG. 5 describes a selection of an entire access network from a UE perspective. The process, and Figure 6 is a process of describing the entire access network selection from the perspective of the ANDSF module. Although the described angles are different, the selection process of the entire access network shown in Fig. 6 is consistent with the process shown in Fig. 5. As shown in Figure 6, the method includes:

601、 ANDSF模块向 UE发送接入网络选择策略，该接入网络选择策略包括业务的 RAT优先级以及 RAT优先级生效时对应的接入网设备的负载门限；该接入网络选择策略用于 UE根据接入网络选择策略和接入网设备的负载信息确定 UE业务的接入网络。 601. The ANDSF module sends an access network selection policy to the UE, where the access network selection policy includes a RAT priority of the service and a load threshold of the access network device corresponding to the RAT priority. The access network selection policy is used for the UE. The access network of the UE service is determined according to the access network selection policy and the load information of the access network device.

图 7为本发明实施例六提供的接入网络的选择方法流程图，该图 7所示的方法与图 5所示的方法的不同在于：图 5从 UE的角度描述整个接入网络选择的过程，而图 7是从接入网设备的角度描述整个接入网络选择的过程。虽然描述的角度不同，但图 Ί所示的整个接入网络的选择的过程与图 5所示的过程是相一致的。如图 7所示，该方法包括： FIG. 7 is a flowchart of a method for selecting an access network according to Embodiment 6 of the present invention. The method shown in FIG. 7 is different from the method shown in FIG. 5 in that: FIG. 5 describes the entire access network selection from the perspective of the UE. The process, and Figure 7 is a process of describing the entire access network selection from the perspective of the access network device. Although the described angles are different, the process of selecting the entire access network as shown in Fig. 5 is consistent with the process shown in Fig. 5. As shown in Figure 7, the method includes:

701、接入网设备接收 UE发送接入网设备的信息，该接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；该接入网设备的信息用于 UE根据接入网设备的信息以及 ANDSF模块提供的接入网络选择策略确定 UE业务的接入网络。 701. The access network device receives information that the UE sends the access network device, where the information of the access network device includes load information of the access network device or an access tendency of the access network device; the information of the access network device is used. The UE determines the access network of the UE service according to the information of the access network device and the access network selection policy provided by the ANDSF module.

进一步的，上述接入网设备的信息中还包括接入因子，该接入因子用于 UE将生成的随机因子与接入因子相比较，并获得比较结果，如果比较结果符合预设规则，则 UE根据接入倾向指示选择接入网络；如果比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 Further, the information about the access network device further includes an access factor, where the access factor is used by the UE to compare the generated random factor with the access factor, and obtain a comparison result. If the comparison result meets the preset rule, The UE selects an access network according to the access tendency indication; if the comparison result does not match The preset rule, the UE waits for the preset time to generate a new random factor again.

本发明实施例提供的接入网络的选择方法，根据 ANDSF模块提供的接入网络选择策略为 UE生成业务接入策略， UE可以根据业务接入策略接入网络，这一动态的过程可以使得在接入网设备控制的接入***与 ANDSF提供的策略相冲突时，可以为 UE选择最为合适的接入网络。 The access network selection method provided by the embodiment of the present invention generates a service access policy for the UE according to the access network selection policy provided by the ANDSF module, and the UE can access the network according to the service access policy, and the dynamic process can be performed in the dynamic process. When the access system controlled by the access network device conflicts with the policy provided by the ANDSF, the most suitable access network can be selected for the UE.

图 8为本发明实施例七提供的接入网设备的结构示意图，需要说明的是，该接入网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 8所示，该接入网设备包括：获得模块 801和选择模块 802。其中，获得模块 801用于获得用户设备 UE的业务接入策略，业务接入策略是根据接入网络发现和选择功能 ANDSF模块为 UE提供的接入网络选择策略得到的；选择模块 802用于根据业务接入策略为 UE的业务选择接入网络。 FIG. 8 is a schematic structural diagram of an access network device according to Embodiment 7 of the present invention. It should be noted that the access network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. No comment here. As shown in FIG. 8, the access network device includes: an obtaining module 801 and a selecting module 802. The obtaining module 801 is configured to obtain a service access policy of the user equipment UE, where the service access policy is obtained according to an access network selection policy provided by the ANDSF module for the UE by the access network discovery and selection function; The service access policy selects an access network for the service of the UE.

其中，业务接入策略包括： The service access policy includes:

又一种实施方式下，获得模块 801还用于：获得业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识；选择模块 802还用于：根据 RAB 的标识或者 UE的标识，为 UE的业务选择接入网络。 In another embodiment, the obtaining module 801 is further configured to: obtain the identifier of the radio access bearer RAB corresponding to the service access policy or the identifier of the UE; the selecting module 802 is further configured to: according to the identifier of the RAB or the identifier of the UE, The UE's service chooses to access the network.

另一种实施方式下，如图 9所示的本发明实施例七提供的接入网设备的又一结构示意图，该接入网设备还包括：发送模块 803 , 用于向 UE发送接入指示，接入指示中携带业务标识和 /或接入网络标识。 In another embodiment, as shown in FIG. 9, another schematic diagram of an access network device according to Embodiment 7 of the present invention, the access network device further includes: a sending module 803, configured to send an access indication to the UE The access indication carries a service identifier and/or an access network identifier.

其中，接入网络标识为接入网络类型和 /或接入网络中接入点的标识。在图 9所示的实施例的基础上，发送模块 803还用于：向 UE发送命令消息，命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 The access network identifier is an access network type and/or an identifier of an access point in the access network. On the basis of the embodiment shown in FIG. 9, the sending module 803 is further configured to: send a command message to the UE, where the command message is used to indicate that the UE complies with the network side command and cannot decide to access the network by itself.

其中，命令消息具体为网络支持 WLAN卸载能力的指示。 The command message is specifically an indication that the network supports the WLAN offload capability.

再一实施方式下，选择模块 802具体用于：按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。还一种实施方式下，获得模块 801 包括：第一接收单元，用于接收核心网设备发送的业务接入策略，业务接入策略为核心网根据 UE或 ANDSF模块提供的接入网络选择策略生成；或者，第二接收单元，用于接收 UE发送的业务接入策略，业务接入策略为 UE根据 ANDSF模块提供的接入网络选择策略生成。 In another embodiment, the selecting module 802 is specifically configured to: determine, according to the RAT priority of the service, the load of the corresponding network exceeds a preset percentage according to the order of the RAT priority; if yes, select the network with the second highest priority as the UE. Access to the network. In an embodiment, the obtaining module 801 includes: a first receiving unit, configured to receive a service access policy sent by the core network device, where the service access policy is generated by the core network according to an access network selection policy provided by the UE or the ANDSF module. Or a second receiving unit, configured to receive a service access policy sent by the UE, where the service access policy is generated by the UE according to an access network selection policy provided by the ANDSF module.

图 10 为本发明实施例八提供的核心网设备的结构示意图，需要说明的是，该核心网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 10所示，该核心网设备包括：获得模块 1001以及生成模块 1002。其中，获得模块 1001用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略；生成模块 1002用于根据接入网络选择策略为 UE生成业务接入策略，并将 UE的业务接入策略发送给接入网设备，使得接入网设备根据 UE的业务接入策略为 UE 的业务选择接入网络。 FIG. 10 is a schematic structural diagram of a core network device according to Embodiment 8 of the present invention. It should be noted that the core network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where Do not make a statement. As shown in FIG. 10, the core network device includes: an obtaining module 1001 and a generating module 1002. The obtaining module 1001 is configured to obtain an access network selection policy that the access network discovery and selection function ANDSF module provides to the user equipment UE, and the generating module 1002 is configured to generate a service access policy for the UE according to the access network selection policy, and The service access policy of the UE is sent to the access network device, so that the access network device selects the access network for the service of the UE according to the service access policy of the UE.

其中，业务接入策略包括： The service access policy includes:

如图 11所示的本发明实施例八提供的核心网设备的又一结构示意图，还包括：发送模块 1003 , 用于发送业务接入策略对应的无线接入承载 RAB的标识或者 UE 的标识给接入网设备，使得接入网设备根据 RAB 的标识或者 UE的标识 , 为 UE的业务选择接入网络。 FIG. 11 is a schematic structural diagram of a core network device according to Embodiment 8 of the present invention, further including: a sending module 1003, configured to send an identifier of a radio access bearer RAB corresponding to a service access policy or an identifier of the UE to The access network device enables the access network device to select an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

一种实施方式下，生成模块 1002 具体包括：第一生成单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF 策略，根据 ANDSF策略为 UE生成业务接入策略；或者，第二生成单元，用于确定 UE的全部 RAB中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略为 UE生成业务接入策略。 In an implementation manner, the generating module 1002 specifically includes: a first generating unit, configured to determine a service carried in each radio access bearer RAB of the UE, and determine an ANDSF policy corresponding to each service, and generate a service connection for the UE according to the ANDSF policy. The second generation unit is configured to determine a service carried in all the RABs of the UE, and determine an ANDSF policy corresponding to the service, and generate a service access policy for the UE according to the ANDSF policy.

又一种实施方式下，获得模块 1001包括：第一接收单元，用于从 ANDSF 模块接收 UE的接入网络选择策略；或者第二接收单元，用于接收 UE上传的接入网络选择策略， UE上传的接入网络选择策略为 UE从 ANDSF模块中获付。 In another embodiment, the obtaining module 1001 includes: a first receiving unit, configured to receive an access network selection policy of the UE from the ANDSF module; or a second receiving unit, configured to receive an access network selection policy uploaded by the UE, where the UE The uploaded access network selection policy is obtained by the UE from the ANDSF module. Pay.

图 12为本发明实施例九提供的用户设备的结构示意图，需要说明的是，该用户设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 12所示，该用户设备包括：接收模块 1201 和选择模块 1202。其中，接收模块 1201 用于接收接入网设备发送的接入网选择指示；选择模块 1202用于根据接入网选择指示选择接入网。 FIG. 12 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention. It should be noted that the user equipment is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where not Praise. As shown in FIG. 12, the user equipment includes: a receiving module 1201 and a selecting module 1202. The receiving module 1201 is configured to receive an access network selection indication sent by the access network device, and the selecting module 1202 is configured to select an access network according to the access network selection indication.

一种实施方式下，如图 13所示的本发明实施例九提供的用户设备的又一结构示意图，该用户设备还包括：获得模块 1203 , 用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略；生成模块 1204, 用于根据接入网络选择策略生成业务接入策略；发送模块 1205 , 用于将生成的业务接入策略发送给接入网设备，使得接入网设备根据业务接入策略为 UE的业务选择接入网络。 In another embodiment, as shown in FIG. 13, a schematic structural diagram of a user equipment provided in Embodiment 9 of the present invention further includes: an obtaining module 1203, configured to obtain an access network discovery and selection function, and an ANDSF module provides The access network selection policy; the generating module 1204, configured to generate a service access policy according to the access network selection policy; the sending module 1205, configured to send the generated service access policy to the access network device, so that the access network device The access network is selected for the service of the UE according to the service access policy.

其中，业务接入策略包括： The service access policy includes:

一种实施方式下，发送模块 1205还用于：将业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得接入网设备根据 RAB的标识或者 UE的标识 , 为 UE的业务选择接入网络。 In an embodiment, the sending module 1205 is further configured to: send the identifier of the radio access bearer RAB corresponding to the service access policy or the identifier of the UE to the access network device, so that the access network device according to the identifier of the RAB or the UE Identification, selecting an access network for the UE's service.

又一实施方式下，生成模块 1204 具体包括：第一确定单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF 策略，根据 ANDSF 策略生成业务接入策略；或者，第二确定单元，用于确定 UE的全部 RAB 中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略生成业务接入策略。 In another embodiment, the generating module 1204 specifically includes: a first determining unit, configured to determine a service carried in each radio access bearer RAB of the UE, and determine an ANDSF policy corresponding to each service, and generate a service access policy according to the ANDSF policy. Or a second determining unit, configured to determine a service carried in all RABs of the UE, and determine an ANDSF policy corresponding to the service, and generate a service access policy according to the ANDSF policy.

其中，接入网选择指示中携带业务标识和 /或接入网络标识。 The access network selection indication carries a service identifier and/or an access network identifier.

其中，接入网络标识为接入网络类型和 /或接入网络中接入点的标识。再一种实施方式，接收模块 1201还用于：接收接入网设备发送的命令消息，命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络；选择模块 1202具体用于：根据命令消息停止根据 ANDSF策略进行网络选择，并根据接入网选择指示确定接入网络。 The access network identifier is an access network type and/or an identifier of an access point in the access network. In another embodiment, the receiving module 1201 is further configured to: receive a command message sent by the access network device, where the command message is used to indicate that the UE complies with the network side command and cannot decide to access the network by itself; the selecting module 1202 is specifically configured to: The command message stops network selection based on the ANDSF policy. And determining the access network according to the access network selection indication.

图 14为本发明实施例十提供的用户设备的结构示意图，需要说明的是，该用户设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 14所示，该用户设备包括：获得模块 1401 和确定模块 1402。其中，获得模块 1401 用于获得接入网络选择策略以及接入网设备的信息，接入网络选择策略为接入网络发现和选择功能 ANDSF模块为 UE提供的；确定模块 1402用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 FIG. 14 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention. It should be noted that the user equipment is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where not Praise. As shown in FIG. 14, the user equipment includes: an obtaining module 1401 and a determining module 1402. The obtaining module 1401 is configured to obtain an access network selection policy and information of the access network device, where the access network selection policy is provided for the UE by the access network discovery and selection function ANDSF module; the determining module 1402 is configured to use the access network. The selection policy and the information of the access network device determine the access network.

其中，接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 The information about the access network device includes: load information of the access network device or access tendency of the access network device.

其中，接入网设备的接入倾向包括：接入网设备倾向 UE接入第一网络，或者倾向 UE接入第二网络，或者不干涉 UE的接入网选择。 The access tendency of the access network device includes: the access network device prefers the UE to access the first network, or prefers the UE to access the second network, or does not interfere with the access network selection of the UE.

其中，接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT 优先级， RAT优先级生效时对应的接入网设备的负载门限。 The access network selection policy includes: a radio access technology RAT priority of the radio access bearer RAB, and a load threshold of the corresponding access network device when the RAT priority takes effect.

一种实施方式下，确定模块 1402具体包括：第一确定单元，用于根据接入网设备的负载信息，确定使用的接入网络选择策略；第二确定单元，用于根据接入网络选择策略确定优先使用的接入网络。 In an embodiment, the determining module 1402 specifically includes: a first determining unit, configured to determine an access network selection policy to be used according to load information of the access network device; and a second determining unit, configured to select a policy according to the access network Determine the priority access network.

又一种实施方式下，确定模块 1402具体用于：在接入网络选择策略允许接入的网络中，根据接入倾向指示选择接入网络。 In another embodiment, the determining module 1402 is specifically configured to: in the network that the access network selection policy allows access, select the access network according to the access tendency indication.

再一种实施方式下，接入网设备的信息中还包括接入因子，如图 15所示的本发明实施例十提供的用户设备的又一结构示意图，该用户设备还包括：生成模块 1403 , 用于生成随机因子；比较模块 1404, 用于将随机因子与接入因子相比较，获得比较结果；则确定模块 1402具体用于：如果比较结果符合预设规则，根据接入倾向指示选择接入网络；生成模块 1403还用于如果比较结果不符合预设规则，等待预设时间后再次生成新的随机因子。 In another embodiment, the information of the access network device further includes an access factor, and another structure diagram of the user equipment provided in the tenth embodiment of the present invention, as shown in FIG. 15, the user equipment further includes: a generating module 1403 And a comparison module 1404, configured to compare the random factor with the access factor to obtain a comparison result; and the determining module 1402 is specifically configured to: if the comparison result meets the preset rule, select the connection according to the access tendency indication The generating module 1403 is further configured to wait for the preset time to generate a new random factor again if the comparison result does not meet the preset rule.

图 16为本发明实施例十一提供的 ANDSF模块的结构示意图，需要说明的是，该 ANDSF模块为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 16所示，该 ANDSF模块包括：发送模块 1601 , 用于向用户设备 UE发送接入网络选择策略，接入网络选择策略包括：业务的无线接入技术 RAT优先级以及 RAT优先级生效时对应的接入网设备的负载门限；接入网络选择策略用于 UE根据接入网络选择策略和接入网设备的负载信息确定 UE业务的接入网络。 FIG. 16 is a schematic structural diagram of an ANDSF module according to Embodiment 11 of the present invention. It should be noted that the ANDSF module is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where Make a comment. As shown in FIG. 16, the ANDSF module includes: a sending module 1601, configured to send an access network selection policy to the user equipment UE, where the access network selection policy includes: a radio access technology RAT priority of the service, and a RAT priority when the RAT priority is valid corresponding The load threshold of the access network device; the access network selection policy is used by the UE to determine the access network of the UE service according to the access network selection policy and the load information of the access network device.

图 17为本发明实施例十二提供的接入网设备的结构示意图，需要说明的是，该接入网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 17所示，该接入网设备包括：发送模块 1701 , 用于向用户设备 UE发送接入网设备的信息，接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；接入网设备的信息用于 UE根据接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定 UE业务的接入网络。 FIG. 17 is a schematic structural diagram of an access network device according to Embodiment 12 of the present invention. It should be noted that the access network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. , do not make a comment here. As shown in FIG. 17, the access network device includes: a sending module 1701, configured to send information of an access network device to a user equipment UE, where the information of the access network device includes load information of the access network device or an access network device. Accessing information; the information of the access network device is used by the UE to determine the access network of the UE service according to the information of the access network device and the access network selection policy provided by the ANDSF module of the access network discovery and selection function.

一种实施方式下，接入网设备的信息中还包括接入因子，接入因子用于 In an implementation manner, the information of the access network device further includes an access factor, and the access factor is used for

UE将生成的随机因子与接入因子相比较，并获得比较结果，如果比较结果符合预设规则，则 UE根据接入倾向指示选择接入网络；如果比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 The UE compares the generated random factor with the access factor, and obtains a comparison result. If the comparison result meets the preset rule, the UE selects the access network according to the access tendency indication; if the comparison result does not meet the preset rule, the UE waits A new random factor is generated again after the preset time.

图 18为本发明实施例十三提供的接入网设备的结构示意图，需要说明的是，该接入网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 18所示，该接入网设备包括：第一处理器 1801和第二处理器 1802。其中，第一处理器 1801用于获得用户设备 UE 的业务接入策略，业务接入策略是根据接入网络发现和选择功能 ANDSF模块为 UE提供的接入网络选择策略得到的；第二处理器 1802,用于根据业务接入策略为 UE的业务选择接入网络。 FIG. 18 is a schematic structural diagram of an access network device according to Embodiment 13 of the present invention. It should be noted that the access network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. , do not make a comment here. As shown in FIG. 18, the access network device includes: a first processor 1801 and a second processor 1802. The first processor 1801 is configured to obtain a service access policy of the user equipment UE, where the service access policy is obtained according to an access network selection policy provided by the ANDSF module for the UE by the access network discovery and selection function; 1802. The method is used to select an access network for a service of the UE according to a service access policy.

其中，业务接入策略包括： The service access policy includes:

又一种实施方式下，如图 19所示的本发明实施例十三提供的接入网设备的又一结构示意图，还包括：第三处理器 1803, 用于获得业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识；则第二处理器 1802具体用于：根据 RAB的标识或者 UE的标识，为 UE的业务选择接入网络。 In another embodiment, a schematic structural diagram of the access network device according to the thirteenth embodiment of the present invention, as shown in FIG. 19, further includes: a third processor 1803, configured to obtain a wireless corresponding to the service access policy. Accessing the identifier of the bearer or the identifier of the UE; the second processor 1802 is specifically configured to: select an access network for the service of the UE according to the identifier of the RAB or the identifier of the UE.

另一种实施方式下，如图 20所示的本发明实施例十三提供的接入网设备的再一结构示意图，还包括：发送器 1804, 用于向 UE发送接入指示，接入指示中携带业务标识和 /或接入网络标识。 In another embodiment, the access network device provided in Embodiment 13 of the present invention is as shown in FIG. A further structural diagram of the device further includes: a sender 1804, configured to send an access indication to the UE, where the access indication carries a service identifier and/or an access network identifier.

其中，接入网络标识为接入网络类型和 /或接入网络中接入点的标识。又一实施方式下，发送器 1804还用于：向 UE发送命令消息，命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 The access network identifier is an access network type and/or an identifier of an access point in the access network. In another embodiment, the transmitter 1804 is further configured to: send a command message to the UE, where the command message is used to indicate that the UE complies with the network side command and does not decide to access the network by itself.

一种实施方式下，第二处理器 1802具体用于：按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 In an embodiment, the second processor 1802 is specifically configured to: determine, according to a RAT priority of the service, a high to low order, whether the load of the corresponding network exceeds a preset percentage; if yes, select a network with a second highest priority as the network The access network of the UE.

再一实施方式下，如图 21所示的本发明实施例十三提供的接入网设备的另一结构示意图，还包括：接收器 1805, 用于接收核心网设备发送的业务接入策略，业务接入策略为核心网根据 UE或 ANDSF模块提供的接入网络选择策略生成；或者，用于接收 UE发送的业务接入策略，业务接入策略为 UE 根据 ANDSF模块提供的接入网络选择策略生成。 In another embodiment, another structure diagram of the access network device according to the thirteenth embodiment of the present invention, as shown in FIG. 21, further includes: a receiver 1805, configured to receive a service access policy sent by the core network device, The service access policy is generated by the core network according to the access network selection policy provided by the UE or the ANDSF module; or, for receiving the service access policy sent by the UE, the service access policy is the access network selection policy provided by the UE according to the ANDSF module. generate.

图 22为本发明实施例十四提供的核心网设备的结构示意图，需要说明的是，该核心网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 22所示，该核心网设备包括：第一处理器 2201和第二处理器 2202。其中，第一处理器 2201用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略；第二处理器 2202用于根据接入网络选择策略为 UE生成业务接入策略；第一发送器 2203 , 用于将 UE的业务接入策略发送给接入网设备，使得接入网设备根据 UE的业务接入策略为 UE的业务选择接入网络。 FIG. 22 is a schematic structural diagram of a core network device according to Embodiment 14 of the present invention. It should be noted that the core network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. Do not make a statement. As shown in FIG. 22, the core network device includes: a first processor 2201 and a second processor 2202. The first processor 2201 is configured to obtain an access network selection policy that the access network discovery and selection function ANDSF module provides to the user equipment UE, and the second processor 2202 is configured to generate service access for the UE according to the access network selection policy. The first transmitter 2203 is configured to send the service access policy of the UE to the access network device, so that the access network device selects the access network for the service of the UE according to the service access policy of the UE.

其中，业务接入策略包括： The service access policy includes:

一种实施方式下，所述第一发送器 2203还用于发送业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给接入网设备，使得接入网设备根据 RAB的标识或者 UE的标识，为 UE的业务选择接入网络。又一实施方式下，第二处理器 2202具体用于：确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据 ANDSF 策略为 UE生成业务接入策略；或者，确定 UE的全部 RAB中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略为 UE生成业务接入策略。 In an embodiment, the first transmitter 2203 is further configured to send the identifier of the radio access bearer RAB corresponding to the service access policy or the identifier of the UE to the access network device, so that the access network device according to the identifier of the RAB or The identity of the UE selects an access network for the service of the UE. In another embodiment, the second processor 2202 is specifically configured to: determine a service carried in each radio access bearer RAB of the UE, and determine an ANDSF policy corresponding to each service, and generate a service access policy for the UE according to the ANDSF policy; or And determining a service carried in all the RABs of the UE, and determining an ANDSF policy corresponding to the service, and generating a service access policy for the UE according to the ANDSF policy.

再一种实施方式下，如图 23为本发明实施例十四提供的核心网设备的再一结构示意图，还包括：接收器 2204, 用于从 ANDSF模块接收 UE的接入网络选择策略；或者，用于接收 UE上传的接入网络选择策略， UE上传的接入网络选择策略为 UE从 ANDSF模块中获得。 In another embodiment, FIG. 23 is a schematic structural diagram of a core network device according to Embodiment 14 of the present invention, further including: a receiver 2204, configured to receive an access network selection policy of the UE from the ANDSF module; or And receiving an access network selection policy uploaded by the UE, where the access network selection policy uploaded by the UE is obtained by the UE from the ANDSF module.

图 24 为本发明实施例十五提供的用户设备的结构示意图，需要说明的是，该用户设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 24 所示，该用户设备包括：接收器 2401和第一处理器 2402。其中，接收器 2401用于接收接入网设备发送的接入网选择指示；第一处理器 2402用于根据接入网选择指示选择接入网。 FIG. 24 is a schematic structural diagram of a user equipment according to Embodiment 15 of the present invention. It should be noted that the user equipment is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. Make a comment. As shown in FIG. 24, the user equipment includes: a receiver 2401 and a first processor 2402. The receiver 2401 is configured to receive an access network selection indication sent by the access network device. The first processor 2402 is configured to select an access network according to the access network selection indication.

一种实施方式下，如图 25所示的本发明实施例十五提供的用户设备的又一结构示意图，还包括：第二处理器 2403 , 用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略；第三处理器 2404, 用于根据接入网络选择策略生成业务接入策略；发送器 2405, 用于将生成的业务接入策略发送给接入网设备，使得接入网设备根据业务接入策略为 UE的业务选择接入网络。 In another embodiment, another schematic structural diagram of the user equipment provided in the fifteenth embodiment of the present invention, as shown in FIG. 25, further includes: a second processor 2403, configured to obtain an access network discovery and selection function, and the ANDSF module provides The access network selection policy; the third processor 2404 is configured to generate a service access policy according to the access network selection policy; the sender 2405 is configured to send the generated service access policy to the access network device, so as to enable access The network device selects an access network for the service of the UE according to the service access policy.

其中，业务接入策略包括： The service access policy includes:

另一种实施方式下，发送器 2405还用于将业务接入策略对应的无线接入承载 RAB 的标识或者 UE 的标识发送给接入网设备，使得接入网设备根据 RAB的标识或者 UE的标识 , 为 UE的业务选择接入网络。 In another embodiment, the transmitter 2405 is further configured to send the identifier of the radio access bearer RAB corresponding to the service access policy or the identifier of the UE to the access network device, so that the access network device according to the identifier of the RAB or the UE Identification, selecting an access network for the UE's service.

一种实施方式下，第三处理器 2404具体用于：确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据 ANDSF 策略生成业务接入策略；或者确定 UE的全部 RAB中承载的业务，并确定业务对应的 ANDSF策略，根据 ANDSF策略生成业务接入策略。 In an embodiment, the third processor 2404 is specifically configured to: determine a service carried in each radio access bearer RAB of the UE, determine an ANDSF policy corresponding to each service, generate a service access policy according to the ANDSF policy, or determine a UE. The business carried in all RABs, and the industry The corresponding ANDSF policy is configured to generate a service access policy according to the ANDSF policy.

其中，接入网络标识为接入网络类型和 /或接入网络中接入点的标识。又一种实施方式下，如图 26所示的本发明实施例十五提供的用户设备的另一结构示意图，接收器 2401还用于接收接入网设备发送的命令消息，命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络；第四处理器 2406, 用于根据命令消息停止根据 ANDSF 策略进行网络选择，以使第一处理器 2402根据接入网选择指示确定接入网络。 The access network identifier is an access network type and/or an identifier of an access point in the access network. In another embodiment, another structure diagram of the user equipment provided in the fifteenth embodiment of the present invention, as shown in FIG. 26, the receiver 2401 is further configured to receive a command message sent by the access network device, where the command message is used to indicate The UE does not decide to access the network by itself according to the network side command; the fourth processor 2406 is configured to stop network selection according to the ANDSF policy according to the command message, so that the first processor 2402 determines the access network according to the access network selection indication. .

图 27 为本发明实施例十六提供的用户设备的结构示意图，需要说明的是，该用户设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 27所示，该用户设备包括：第一处理器 2701和第二处理器 2702。其中，第一处理器 2701用于获得接入网络选择策略以及接入网设备的信息，接入网络选择策略为接入网络发现和选择功能 ANDSF模块为 UE提供的；第二处理器 2702, 用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 FIG. 27 is a schematic structural diagram of a user equipment according to Embodiment 16 of the present invention. It should be noted that the user equipment is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where Make a comment. As shown in FIG. 27, the user equipment includes: a first processor 2701 and a second processor 2702. The first processor 2701 is configured to obtain an access network selection policy and information of the access network device, where the access network selection policy is provided by the ANDSF module for the access network discovery and selection function; the second processor 2702, The access network is determined according to the access network selection policy and the information of the access network device.

一种实施方式下，第二处理器 2702具体用于：根据接入网设备的负载信息，确定使用的接入网络选择策略；根据接入网络选择策略确定优先使用的接入网络。 In an embodiment, the second processor 2702 is specifically configured to: determine an access network selection policy to be used according to the load information of the access network device; and determine the preferential access network according to the access network selection policy.

又一种实施方式下，第二处理器 2702具体用于：在接入网络选择策略允许接入的网络中，根据接入倾向指示选择接入网络。 In another embodiment, the second processor 2702 is specifically configured to: in the network that the access network selection policy allows access, select the access network according to the access tendency indication.

又一种实施方式下，如图 28为本发明实施例十六提供的用户设备的再一结构示意图，还包括：第三处理器 2703 , 用于生成随机因子；将随机因子与接入因子相比较，获得比较结果；如果比较结果符合预设规则，第二处理器 2702根据接入倾向指示选择接入网络；如果比较结果不符合预设规则，第三处理器 2703等待预设时间后再次生成新的随机因子。 In another embodiment, FIG. 28 is a schematic structural diagram of a user equipment according to Embodiment 16 of the present invention, further including: a third processor 2703 configured to generate a random factor; and a random factor and an access factor Comparing, obtaining a comparison result; if the comparison result meets the preset rule, the second processor 2702 selects an access network according to the access tendency indication; if the comparison result does not meet the preset rule, the third The processor 2703 waits for a preset time to generate a new random factor again.

图 29为本发明实施例十七提供的 ANDSF模块的结构示意图，需要说明的是，该 ANDSF模块为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 29所示，该 ANDSF模块包括：发送器 2901用于向用户设备 UE发送接入网络选择策略，接入网络选择策略包括：业务的无线接入技术 RAT优先级以及 RAT优先级生效时对应的接入网设备的负载门限；接入网络选择策略用于 UE根据接入网络选择策略和接入网设备的负载信息确定 UE业务的接入网络。 FIG. 29 is a schematic structural diagram of an ANDSF module according to Embodiment 17 of the present invention. It should be noted that the ANDSF module is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment, where Make a comment. As shown in FIG. 29, the ANDSF module includes: a transmitter 2901, configured to send an access network selection policy to a user equipment UE, where the access network selection policy includes: a radio access technology RAT priority of the service, and a corresponding RAT priority The load threshold of the access network device; the access network selection policy is used by the UE to determine the access network of the UE service according to the access network selection policy and the load information of the access network device.

图 30为本发明实施例十八提供的接入网设备的结构示意图，需要说明的是，该接入网设备为上述方法实施例中的执行主体之一，其具体工作流程可以参考方法实施例，此处不做赞述。如图 30所示，该接入网设备包括：发送器 3001用于向用户设备 UE发送接入网设备的信息，接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；接入网设备的信息用于 UE根据接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定 UE业务的接入网络。 FIG. 30 is a schematic structural diagram of an access network device according to Embodiment 18 of the present invention. It should be noted that the access network device is one of the execution entities in the foregoing method embodiment, and the specific working process may refer to the method embodiment. , do not make a comment here. As shown in FIG. 30, the access network device includes: a transmitter 3001 configured to send information of an access network device to a user equipment UE, where the information of the access network device includes load information of the access network device or an access network device. Accessing the information; the information of the access network device is used by the UE to determine the access network of the UE service according to the information of the access network device and the access network selection policy provided by the ANDSF module of the access network discovery and selection function.

其中，接入网设备的信息中还包括接入因子，接入因子用于 UE将生成的随机因子与接入因子相比较，并获得比较结果，如果比较结果符合预设规贝 |J , 则 UE根据接入倾向指示选择接入网络；如果比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 The access network device further includes an access factor, where the access factor is used by the UE to compare the generated random factor with the access factor, and obtain a comparison result. If the comparison result meets the preset rule |J, then The UE selects an access network according to the access tendency indication; if the comparison result does not meet the preset rule, the UE waits for the preset time to generate a new random factor again.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括： ROM, RAM, 磁碟或者光盘等各种可以存储程序代码的介质。 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

权利要求书 claims

1、一种接入网络的选择方法，其特征在于，包括： 1. A method for selecting an access network, characterized by including:

接入网设备获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； The access network device obtains the service access policy of the user equipment UE. The service access policy is obtained based on the access network selection policy provided by the access network discovery and selection function ANDSF module for the UE;

根据所述业务接入策略为所述 UE的业务选择接入网络。 Select an access network for the UE's service according to the service access policy.

2、根据权利要求 1所述的方法，其特征在于，所述业务接入策略包括：业务的无线接入技术 RAT优先级； 2. The method according to claim 1, characterized in that the service access policy includes: the radio access technology RAT priority of the service;

和 /或，业务允许接入和 /或禁止接入的接入点信息； and/or, access point information that allows access to and/or prohibits access to the business;

和 /或，业务允许接入和 /或禁止接入的时间信息； and/or, the time information when the service allows access and/or prohibits access;

和 /或，业务允许接入和 /或禁止接入的地址信息。 and/or, the address information of the service that allows access and/or prohibits access.

3、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：获得所述业务接入策略对应的无线接入承载 RAB 的标识或者 UE的标识； 3. The method according to claim 1 or 2, characterized in that the method further includes: obtaining the identity of the radio access bearer RAB or the identity of the UE corresponding to the service access policy;

则所述根据所述业务接入策略为所述 UE的业务选择接入网络包括：根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 Then, selecting an access network for the service of the UE according to the service access policy includes: selecting an access network for the service of the UE according to the identity of the RAB or the identity of the UE.

4、根据权利要求 1所述的方法，其特征在于，所述根据所述业务接入策略为所述 UE的业务选择接入网络之后，所述方法还包括： 4. The method according to claim 1, characterized in that, after selecting an access network for the UE's service according to the service access policy, the method further includes:

向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 Send an access indication to the UE, where the access indication carries a service identifier and/or the access network identifier.

5、根据权利要求 4所述的方法，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 5. The method according to claim 4, characterized in that the access network identifier is an access network type and/or an identifier of an access point in the access network.

6、根据权利要求 4所述的方法，其特征在于，所述向所述 UE发送接入指示之前，所述方法还包括： 6. The method according to claim 4, characterized in that, before sending the access indication to the UE, the method further includes:

接入网设备向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 The access network device sends a command message to the UE, and the command message is used to instruct the UE to comply with network side commands and not to decide on its own to access the network.

7、根据权利要求 6所述的方法，其特征在于，所述命令消息具体为网络支持 WLAN卸载能力的指示。 7. The method according to claim 6, characterized in that the command message is specifically an indication that the network supports WLAN offloading capability.

8、根据权利要求 3所述的方法，其特征在于，所述根据所述业务接入策略为所述 UE的业务选择接入网络，包括： 8. The method according to claim 3, characterized in that: according to the service access policy Selecting an access network for the UE's service includes:

按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 According to the order of RAT priority of the service from high to low, it is judged whether the load of the corresponding network exceeds the preset percentage; if it exceeds, the network with the next highest priority is selected as the access network of the UE.

9、根据权利要求 1所述的方法，其特征在于，所述接入网设备获得 UE 的业务接入策略具体包括： 9. The method according to claim 1, wherein the access network device obtains the service access policy of the UE specifically includes:

接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成； Receive the service access policy sent by the core network device, where the service access policy is generated by the core network according to the access network selection policy provided by the UE or the ANDSF module;

或者， or,

接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。 Receive the service access policy sent by the UE, where the service access policy is generated by the UE according to the access network selection policy provided by the ANDSF module.

10、一种接入网络的选择方法，其特征在于，包括： 10. A method for selecting an access network, characterized by including:

核心网设备获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略； The core network equipment obtains the access network discovery and selection function. The ANDSF module provides the access network selection strategy for the user equipment UE;

根据所述接入网络选择策略为所述 UE生成业务接入策略，并将所述 UE 的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 Generate a service access policy for the UE according to the access network selection policy, and send the service access policy of the UE to the access network device, so that the access network device accesses the service according to the service of the UE. The policy selects an access network for the UE's service.

11、根据权利要求 10所述的方法，其特征在于，所述业务接入策略包括：业务的无线接入技术 RAT优先级； 11. The method according to claim 10, characterized in that the service access policy includes: the radio access technology RAT priority of the service;

12、根据权利要求 10或 11所述的方法，其特征在于，所述方法还包括：发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE 的标识，为所述 UE的业务选择接入网络。 12. The method according to claim 10 or 11, characterized in that, the method further includes: sending the identifier of the radio access bearer RAB or the identifier of the UE corresponding to the service access policy to the access network device , so that the access network device selects an access network for the service of the UE according to the identity of the RAB or the identity of the UE.

13、根据权利要求 10所述的方法，其特征在于，所述根据所述接入网络选择策略为所述 UE生成业务接入策略包括： 13. The method according to claim 10, wherein generating a service access policy for the UE according to the access network selection policy includes:

确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略； Determine the services carried in each radio access bearer RAB of the UE, determine the ANDSF policy corresponding to each service, and generate a service access policy for the UE according to the ANDSF policy;

或者，确定 UE 的全部 RAB 中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略。 Or, determine the services carried in all RABs of the UE, and determine the corresponding ANDSF policy, generate a service access policy for the UE according to the ANDSF policy.

14、根据权利要求 10 所述的方法，其特征在于，所述核心网设备获得 ANDSF模块提供给 UE的接入网络选择策略，包括： 14. The method according to claim 10, wherein the core network device obtains the access network selection policy provided to the UE by the ANDSF module, including:

所述核心网设备从 ANDSF模块接收所述 UE的接入网络选择策略；或者，所述核心网设备接收 UE上传的接入网络选择策略，所述 UE上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。 The core network device receives the access network selection policy of the UE from the ANDSF module; or, the core network device receives the access network selection policy uploaded by the UE, and the access network selection policy uploaded by the UE is the access network selection policy of the UE. Obtained from the ANDSF module.

15、一种接入网络的选择方法，其特征在于，包括： 15. A method for selecting an access network, characterized by including:

用户设备 UE接收接入网设备发送的接入网选择指示； User equipment UE receives the access network selection instruction sent by the access network equipment;

根据所述接入网选择指示选择接入网。 Select an access network according to the access network selection indication.

16、根据权利要求 15所述的方法，其特征在于，所述接收接入网设备发送的接入网选择指示之前，所述方法还包括： 16. The method according to claim 15, characterized in that before receiving the access network selection instruction sent by the access network device, the method further includes:

所述 UE获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略； The UE obtains the access network selection policy provided by the access network discovery and selection function ANDSF module;

根据所述接入网络选择策略生成业务接入策略； Generate a service access policy according to the access network selection policy;

将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 The generated service access policy is sent to the access network device, so that the access network device selects an access network for the UE's service according to the service access policy.

17、根据权利要求 16所述的方法，其特征在于，所述业务接入策略包括：业务的无线接入技术 RAT优先级； 17. The method according to claim 16, characterized in that the service access policy includes: the radio access technology RAT priority of the service;

18、根据权利要求 16或 17所述的方法，其特征在于，所述方法还包括：将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 18. The method according to claim 16 or 17, characterized in that, the method further includes: sending the identifier of the radio access bearer RAB or the identifier of the UE corresponding to the service access policy to the access network device, The access network device is caused to select an access network for the service of the UE according to the identity of the RAB or the identity of the UE.

19、根据权利要求 17所述的方法，其特征在于，所述根据所述接入网络选择策略生成业务接入策略，包括： 19. The method according to claim 17, characterized in that generating a service access policy according to the access network selection policy includes:

确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略； Determine the services carried in each radio access bearer RAB of the UE, determine the ANDSF policy corresponding to each service, and generate a service access policy according to the ANDSF policy;

或者确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF 策略，根据所述 ANDSF策略生成业务接入策略。 Or determine the services carried in all RABs of the UE and determine the ANDSF corresponding to the services. Policy, generate a service access policy according to the ANDSF policy.

20、根据权利要求 15所述的方法，其特征在于，所述接入网选择指示中携带业务标识和 /或接入网络标识。 20. The method according to claim 15, characterized in that the access network selection indication carries a service identifier and/or an access network identifier.

21、根据权利要求 20所述的方法，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 21. The method according to claim 20, characterized in that the access network identifier is an access network type and/or an identifier of an access point in the access network.

22、根据权利要求 15所述的方法，其特征在于，所述方法还包括：所述 UE接收接入网设备发送的命令消息，所述命令消息用于指示 UE 遵从网络侧命令而不得自行决策其接入网络； 22. The method according to claim 15, characterized in that the method further includes: the UE receiving a command message sent by the access network device, the command message being used to instruct the UE to comply with network side commands and not to make decisions on its own its access network;

根据所述命令消息停止根据 ANDSF策略进行网络选择，并根据所述接入网选择指示确定接入网络。 Stop network selection according to the ANDSF policy according to the command message, and determine the access network according to the access network selection indication.

23、一种接入网络的选择方法，其特征在于，包括： 23. A method for selecting an access network, characterized by including:

用户设备 UE获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的；根据接入网络选择策略以及接入网设备的信息确定接入网络。 The user equipment UE obtains the access network selection strategy and access network equipment information. The access network selection strategy is provided by the access network discovery and selection function ANDSF module for the UE; According to the access network selection strategy and access Network device information determines access to the network.

24、根据权利要求 23所述的方法，其特征在于，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 24. The method according to claim 23, characterized in that the information about the access network device includes: load information of the access network device or access tendency of the access network device.

25、根据权利要求 24所述的方法，其特征在于，所述接入网设备的接入倾向包括： 25. The method according to claim 24, characterized in that the access tendency of the access network device includes:

接入网设备倾向所述 UE接入第一网络，或者倾向所述 UE接入第二网络，或者不干涉所述 UE的接入网选择。 The access network device prefers the UE to access the first network, or prefers the UE to access the second network, or does not interfere with the UE's access network selection.

26、根据权利要求 23所述的方法，其特征在于，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 26. The method according to claim 23, wherein the access network selection strategy includes: a radio access technology RAT priority of a wireless access bearer RAB, and a corresponding access network when the RAT priority takes effect. The load threshold of the device.

27、根据权利要求 26所述的方法，其特征在于，所述根据接入网选择策略以及接入网设备的信息确定接入网络包括： 27. The method according to claim 26, wherein determining the access network based on the access network selection policy and access network device information includes:

根据接入网设备的负载信息，确定使用的接入网络选择策略； Determine the access network selection strategy to be used based on the load information of the access network equipment;

根据接入网络选择策略确定优先使用的接入网络。 Determine the access network to be used first according to the access network selection policy.

28、根据权利要求 24或 25所述的方法，其特征在于，所述根据接入网选择策略以及接入网设备的信息确定接入网络包括： 28. The method according to claim 24 or 25, wherein determining the access network based on the access network selection strategy and access network device information includes:

在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。 In the network that allows access according to the access network selection policy, select according to the access tendency indication. Select access network.

29、根据权利要求 28所述的方法，其特征在于，所述接入网设备的信息中还包括接入因子，所述方法还包括： 29. The method according to claim 28, wherein the information about the access network device further includes an access factor, and the method further includes:

生成随机因子； Generate random factors;

将所述随机因子与所述接入因子相比较，获得比较结果； Compare the random factor with the access factor to obtain a comparison result;

则所述根据所述接入倾向指示选择接入网络，具体包括： Then selecting an access network according to the access tendency indication specifically includes:

如果所述比较结果符合预设规则，根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，等待预设时间后再次生成新的随机因子。 If the comparison result conforms to the preset rules, select an access network according to the access tendency indication; if the comparison result does not conform to the preset rules, wait for a preset time and generate a new random factor again.

30、一种接入网络的选择方法，其特征在于，包括： 30. A method for selecting an access network, characterized by including:

接入网络发现和选择功能 ANDSF模块向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 The access network discovery and selection function ANDSF module sends an access network selection strategy to the user equipment UE. The access network selection strategy includes: the radio access technology RAT priority of the service and the corresponding access when the RAT priority takes effect. The load threshold of the network device; the access network selection policy is used by the UE to determine the access network for the UE service based on the access network selection policy and the load information of the access network device.

31、一种接入网络的选择方法，其特征在于，包括： 31. A method for selecting an access network, characterized by including:

接入网设备向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 The access network device sends information about the access network device to the user equipment UE, where the information about the access network device includes load information of the access network device or access tendency of the access network device; the information about the access network device Used by the UE to determine the access network for the UE service according to the information of the access network device and the access network selection policy provided by the access network discovery and selection function ANDSF module.

32、根据权利要求 31所述的方法，其特征在于，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE 根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 32. The method according to claim 31, characterized in that the information about the access network device further includes an access factor, and the access factor is used to combine the random factor generated by the UE with the access factor. Compare the factors and obtain the comparison result. If the comparison result conforms to the preset rules, the UE selects the access network according to the access tendency indication; if the comparison result does not conform to the preset rules, the UE waits for the preset time. Then generate new random factors again.

33、一种接入网设备，其特征在于，包括： 33. An access network device, characterized by: including:

获得模块，用于获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； Obtaining module, used to obtain the service access policy of the user equipment UE, the service access policy is obtained according to the access network selection policy provided by the access network discovery and selection function ANDSF module for the UE;

选择模块，用于根据所述业务接入策略为所述 UE的业务选择接入网络。 A selection module, configured to select an access network for the UE's service according to the service access policy.

34、根据权利要求 33所述的接入网设备，其特征在于，所述业务接入策略包括： 34. The access network device according to claim 33, characterized in that the service access policy includes:

业务的无线接入技术 RAT优先级； Radio access technology RAT priority of the service;

35、根据权利要求 33或 34所述的接入网设备，其特征在于，所述获得模块还用于：获得所述业务接入策略对应的无线接入承载 RAB 的标识或者 UE的标识；所述选择模块还用于：根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 35. The access network device according to claim 33 or 34, characterized in that the obtaining module is further configured to: obtain the identification of the radio access bearer RAB or the identification of the UE corresponding to the service access policy; The selection module is also configured to: select an access network for the service of the UE according to the identity of the RAB or the identity of the UE.

36、根据权利要求 33所述的接入网设备，其特征在于，所述接入网设备还包括：发送模块，用于向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 36. The access network device according to claim 33, characterized in that, the access network device further includes: a sending module, configured to send an access indication to the UE, and the access indication carries a service identifier. and/or the access network identification.

37、根据权利要求 36所述的接入网设备，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 37. The access network device according to claim 36, wherein the access network identifier is an access network type and/or an identifier of an access point in the access network.

38、根据权利要求 36所述的接入网设备，其特征在于，所述发送模块还用于：向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 38. The access network device according to claim 36, characterized in that, the sending module is further configured to: send a command message to the UE, the command message is used to instruct the UE to comply with the network side command and not to make its own decision on its access. Enter the network.

39、根据权利要求 38所述的接入网设备，其特征在于，所述命令消息具体为网络支持 WLAN卸载能力的指示。 39. The access network device according to claim 38, wherein the command message is specifically an indication that the network supports WLAN offloading capability.

40、根据权利要求 35所述的接入网设备，其特征在于，所述选择模块具体用于：按照业务的 RAT优先级由高到低的顺序，判断相应网络的负载是否超过预设百分比；如果超过，选择优先级次高的网络作为 UE的接入网络。 40. The access network device according to claim 35, wherein the selection module is specifically configured to: determine whether the load of the corresponding network exceeds a preset percentage in order of the RAT priority of the service from high to low; If exceeded, the network with the next highest priority is selected as the UE's access network.

41、根据权利要求 33所述的接入网设备，其特征在于，获得模块包括：第一接收单元，用于接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成； 41. The access network device according to claim 33, wherein the obtaining module includes: a first receiving unit, configured to receive a service access policy sent by the core network device, and the service access policy is the core network device. The network is generated according to the access network selection policy provided by the UE or the ANDSF module;

或者， or,

第二接收单元，用于接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。 The second receiving unit is configured to receive the service access policy sent by the UE, where the service access policy is generated by the UE according to the access network selection policy provided by the ANDSF module.

42、一种核心网设备，其特征在于，包括： 42. A core network equipment, characterized by including:

获得模块，用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略； Obtain module, used to obtain the access network discovery and selection function. The ANDSF module provides the access network selection strategy for the user equipment UE;

生成模块，用于根据所述接入网络选择策略为所述 UE生成业务接入策略，并将所述 UE的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 Generating module, configured to generate a service access policy for the UE according to the access network selection policy, and send the service access policy of the UE to the access network device, so that the access network device can select the service access policy according to the access network selection policy. The UE's service access policy selects an access network for the UE's service.

43、根据权利要求 42所述的核心网设备，其特征在于，所述业务接入策略包括： 43. The core network equipment according to claim 42, characterized in that the service access policy includes:

44、根据权利要求 42或 43所述的核心网设备，其特征在于，还包括：发送模块，用于发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 44. The core network device according to claim 42 or 43, further comprising: a sending module, configured to send the identifier of the radio access bearer RAB or the identifier of the UE corresponding to the service access policy to the The access network device enables the access network device to select an access network for the service of the UE based on the identity of the RAB or the identity of the UE.

45、根据权利要求 42所述的核心网设备，其特征在于，生成模块具体包括： 45. The core network equipment according to claim 42, characterized in that the generation module specifically includes:

第一生成单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略； The first generation unit is used to determine the services carried in each radio access bearer RAB of the UE, determine the ANDSF policy corresponding to each service, and generate a service access policy for the UE according to the ANDSF policy;

或者，第二生成单元，用于确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略。 Alternatively, the second generation unit is used to determine the services carried in all RABs of the UE, determine the ANDSF policy corresponding to the service, and generate a service access policy for the UE according to the ANDSF policy.

46、根据权利要求 42所述的核心网设备，其特征在于，所述获得模块包括： 46. The core network equipment according to claim 42, characterized in that the acquisition module includes:

第一接收单元，用于从 ANDSF模块接收所述 UE的接入网络选择策略；或者第二接收单元，用于接收 UE上传的接入网络选择策略，所述 UE 上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。 The first receiving unit is used to receive the access network selection strategy of the UE from the ANDSF module; or the second receiving unit is used to receive the access network selection strategy uploaded by the UE, where the access network selection strategy uploaded by the UE is The UE obtains it from the ANDSF module.

47、一种用户设备，其特征在于，包括：接收模块，用于接收接入网设备发送的接入网选择指示； 47. A user equipment, characterized by including: A receiving module, configured to receive an access network selection instruction sent by the access network device;

选择模块，用于根据所述接入网选择指示选择接入网。 A selection module, configured to select an access network according to the access network selection indication.

48、根据权利要求 47所述的用户设备，其特征在于，还包括：获得模块，用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略； 48. The user equipment according to claim 47, further comprising: an acquisition module, used to obtain the access network selection policy provided by the access network discovery and selection function ANDSF module;

生成模块，用于根据所述接入网络选择策略生成业务接入策略；发送模块，用于将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 A generating module, configured to generate a service access policy according to the access network selection policy; A sending module, configured to send the generated service access policy to the access network device, so that the access network device can select the service access policy according to the service access policy. The access policy selects an access network for the UE's service.

49、根据权利要求 48所述的用户设备，其特征在于，所述业务接入策略包括： 49. The user equipment according to claim 48, characterized in that the service access policy includes:

50、根据权利要求 48或 49所述的用户设备，其特征在于，所述发送模块还用于：将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 50. The user equipment according to claim 48 or 49, characterized in that the sending module is further configured to: send the identifier of the radio access bearer RAB or the identifier of the UE corresponding to the service access policy to the access network equipment, so that the access network equipment selects an access network for the UE's service based on the identification of the RAB or the identification of the UE.

51、根据权利要求 49所述的用户设备，其特征在于，所述生成模块具体包括： 51. The user equipment according to claim 49, characterized in that the generation module specifically includes:

第一确定单元，用于确定 UE的各个无线接入承载 RAB中承载的业务，并确定各个业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略； The first determination unit is used to determine the services carried in each radio access bearer RAB of the UE, determine the ANDSF policy corresponding to each service, and generate a service access policy according to the ANDSF policy;

或者，第二确定单元，用于确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF策略，根据所述 ANDSF策略生成业务接入策略。 Alternatively, the second determination unit is used to determine the services carried in all RABs of the UE, determine the ANDSF policy corresponding to the service, and generate the service access policy according to the ANDSF policy.

52、根据权利要求 47所述的用户设备，其特征在于，所述接入网选择指示中携带业务标识和 /或接入网络标识。 52. The user equipment according to claim 47, characterized in that the access network selection indication carries a service identifier and/or an access network identifier.

53、根据权利要求 52所述的用户设备，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 53. The user equipment according to claim 52, characterized in that the access network identifier is an access network type and/or an identifier of an access point in the access network.

54、根据权利要求 47所述的用户设备，其特征在于，所述接收模块还用于：接收接入网设备发送的命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络； 54. The user equipment according to claim 47, characterized in that the receiving module also uses In: receiving a command message sent by the access network device, where the command message is used to instruct the UE to comply with the network side command and not to make its own decision to access the network;

所述选择模块具体用于：根据所述命令消息停止根据 ANDSF 策略进行网络选择，并根据所述接入网选择指示确定接入网络。 The selection module is specifically configured to: stop network selection according to the ANDSF policy according to the command message, and determine an access network according to the access network selection indication.

55、一种用户设备，其特征在于，包括： 55. A user equipment, characterized by: including:

获得模块，用于获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的；确定模块，用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 Obtaining module, used to obtain access network selection strategy and access network equipment information, the access network selection strategy is the access network discovery and selection function ANDSF module provided for the UE; Determining module, used to determine according to the access network selection strategy Determine the access network based on the access network selection strategy and access network device information.

56、根据权利要求 55所述的用户设备，其特征在于，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 56. The user equipment according to claim 55, characterized in that the information of the access network device includes: load information of the access network device or access tendency of the access network device.

57、根据权利要求 56所述的用户设备，其特征在于，所述接入网设备的接入倾向包括： 57. The user equipment according to claim 56, characterized in that the access tendency of the access network device includes:

58、根据权利要求 55所述的用户设备，其特征在于，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 58. The user equipment according to claim 55, characterized in that, the access network selection strategy includes: the radio access technology RAT priority of the wireless access bearer RAB, and the corresponding access when the RAT priority takes effect The load threshold of network equipment.

59、根据权利要求 58所述的用户设备，其特征在于，所述确定模块具体包括： 59. The user equipment according to claim 58, characterized in that the determining module specifically includes:

第一确定单元，用于根据接入网设备的负载信息，确定使用的接入网络选择策略； The first determination unit is used to determine the access network selection strategy to be used based on the load information of the access network device;

第二确定单元，用于根据接入网络选择策略确定优先使用的接入网络。 The second determination unit is configured to determine the access network to be used with priority according to the access network selection policy.

60、根据权利要求 56或 57所述的用户设备，其特征在于，所述确定模块具体用于：在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。 60. The user equipment according to claim 56 or 57, characterized in that the determining module is specifically configured to: in a network where the access network selection policy allows access, select an access network according to the access tendency indication. Enter the network.

61、根据权利要求 60所述的用户设备，其特征在于，所述接入网设备的信息中还包括接入因子，所述用户设备还包括： 61. The user equipment according to claim 60, characterized in that the information of the access network device further includes an access factor, and the user equipment further includes:

生成模块，用于生成随机因子； Generation module, used to generate random factors;

比较模块，用于将所述随机因子与所述接入因子相比较，获得比较结果；则所述确定模块具体用于：如果所述比较结果符合预设规则，根据所述接入倾向指示选择接入网络；所述生成模块还用于：如果所述比较结果不符合预设规则，等待预设时间后再次生成新的随机因子。 A comparison module, used to compare the random factor with the access factor to obtain a comparison result; The determination module is specifically configured to: if the comparison result complies with the preset rules, select an access network according to the access tendency indication; the generation module is also configured to: if the comparison result does not comply with the preset rules, Wait for the preset time and then generate a new random factor again.

62、一种接入网络发现和选择功能 ANDSF模块，其特征在于，包括：发送模块，用于向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 62. An access network discovery and selection function ANDSF module, characterized in that it includes: a sending module, configured to send an access network selection strategy to the user equipment UE, where the access network selection strategy includes: wireless access of services The technical RAT priority and the load threshold of the corresponding access network device when the RAT priority takes effect; the access network selection policy is used for the UE according to the access network selection policy and the load information of the access network device Determine the access network for the UE service.

63、一种接入网设备，其特征在于，包括： 63. An access network device, characterized by: including:

发送模块，用于向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 A sending module, configured to send information about the access network device to the user equipment UE, where the information about the access network device includes load information of the access network device or access tendency of the access network device; The information is used by the UE to determine the access network for the UE service based on the information of the access network device and the access network selection policy provided by the access network discovery and selection function ANDSF module.

64、根据权利要求 63所述的接入网设备，其特征在于，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 64. The access network device according to claim 63, wherein the information of the access network device further includes an access factor, and the access factor is used by the UE to combine the generated random factor with the generated random factor. Compare the access factors and obtain the comparison result. If the comparison result conforms to the preset rules, the UE selects the access network according to the access tendency indication; if the comparison result does not conform to the preset rules, the UE waits. A new random factor is generated again after the preset time.

65、一种接入网设备，其特征在于，包括： 65. An access network device, characterized by: including:

第一处理器，用于获得用户设备 UE的业务接入策略，所述业务接入策略是根据接入网络发现和选择功能 ANDSF模块为所述 UE提供的接入网络选择策略得到的； The first processor is used to obtain the service access policy of the user equipment UE. The service access policy is obtained according to the access network selection policy provided by the access network discovery and selection function ANDSF module for the UE;

第二处理器，用于根据所述业务接入策略为所述 UE的业务选择接入网络。 The second processor is configured to select an access network for the UE's service according to the service access policy.

66、根据权利要求 65所述的接入网设备，其特征在于，所述业务接入策略包括： 66. The access network device according to claim 65, characterized in that the service access policy includes:

和 /或，业务允许接入和 /或禁止接入的接入点信息；和 /或，业务允许接入和 /或禁止接入的时间信息； and/or, access point information that allows access and/or prohibits access to the business; and/or, time information for service access allowed and/or access prohibited;

67、根据权利要求 65或 66所述的接入网设备，其特征在于，还包括：第三处理器，用于获得所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识； 67. The access network device according to claim 65 or 66, further comprising: a third processor, configured to obtain the identity of the radio access bearer RAB or the identity of the UE corresponding to the service access policy. ;

则所述第二处理器具体用于：根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 The second processor is specifically configured to: select an access network for the service of the UE according to the identity of the RAB or the identity of the UE.

68、根据权利要求 65所述的接入网设备，其特征在于，还包括：发送器，用于向所述 UE发送接入指示，所述接入指示中携带业务标识和 /或所述接入网络标识。 68. The access network device according to claim 65, further comprising: a transmitter, configured to send an access indication to the UE, where the access indication carries a service identifier and/or the access indication. Enter the network ID.

69、根据权利要求 68所述的接入网设备，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 69. The access network device according to claim 68, wherein the access network identifier is an access network type and/or an identifier of an access point in the access network.

70、根据权利要求 68所述的接入网设备，其特征在于，所述发送器还用于： 70. The access network equipment according to claim 68, characterized in that the transmitter is also used for:

向 UE发送命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络。 Send a command message to the UE, where the command message is used to instruct the UE to comply with network side commands and not to decide on its own to access the network.

71、根据权利要求 70所述的接入网设备，其特征在于，所述命令消息具体为网络支持 WLAN卸载能力的指示。 71. The access network device according to claim 70, wherein the command message is specifically an indication that the network supports WLAN offloading capability.

72、根据权利要求 67所述的方法，其特征在于，所述第二处理器具体用于： 72. The method according to claim 67, characterized in that the second processor is specifically used to:

73、根据权利要求 65所述的接入网设备，其特征在于，还包括：接收器，用于接收核心网设备发送的业务接入策略，所述业务接入策略为所述核心网根据所述 UE或所述 ANDSF模块提供的接入网络选择策略生成；或者，用于接收所述 UE发送的业务接入策略，所述业务接入策略为所述 UE根据所述 ANDSF模块提供的接入网络选择策略生成。 73. The access network device according to claim 65, further comprising: a receiver, configured to receive a service access policy sent by the core network device, and the service access policy is configured by the core network according to the Generate an access network selection policy provided by the UE or the ANDSF module; or, be used to receive a service access policy sent by the UE, where the service access policy is the access policy provided by the UE according to the ANDSF module. Network selection strategy generation.

74、一种核心网设备，其特征在于，包括： 74. A core network equipment, characterized by: including:

第一处理器，用于获得接入网络发现和选择功能 ANDSF模块提供给用户设备 UE的接入网络选择策略；第二处理器，用于根据所述接入网络选择策略为所述 UE生成业务接入策略； The first processor is used to obtain the access network selection strategy provided by the access network discovery and selection function ANDSF module to the user equipment UE; A second processor, configured to generate a service access policy for the UE according to the access network selection policy;

第一发送器，用于将所述 UE的业务接入策略发送给接入网设备，使得所述接入网设备根据所述 UE的业务接入策略为所述 UE的业务选择接入网络。 The first sender is configured to send the service access policy of the UE to the access network device, so that the access network device selects an access network for the service of the UE according to the service access policy of the UE.

75、根据权利要求 74所述的核心网设备，其特征在于，所述业务接入策略包括： 75. The core network equipment according to claim 74, characterized in that the service access policy includes:

76、根据权利要求 74或 75所述的核心网设备，其特征在于，还包括：第二发送器，用于发送所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识给所述接入网设备，使得所述接入网设备根据所述 RAB的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 76. The core network device according to claim 74 or 75, further comprising: a second sender, configured to send the identifier of the radio access bearer RAB or the identifier of the UE corresponding to the service access policy to The access network device enables the access network device to select an access network for the UE's service based on the identity of the RAB or the identity of the UE.

77、根据权利要求 74所述的核心网设备，其特征在于，所述第二处理器具体用于： 77. The core network device according to claim 74, characterized in that the second processor is specifically used for:

或者，确定 UE 的全部 RAB 中承载的业务，并确定所述业务对应的 Or, determine the services carried in all RABs of the UE, and determine the corresponding

ANDSF策略，根据所述 ANDSF策略为所述 UE生成业务接入策略。 ANDSF policy, generating a service access policy for the UE according to the ANDSF policy.

78、根据权利要求 74所述的核心网设备，其特征在于，还包括：接收器，用于从 ANDSF模块接收所述 UE的接入网络选择策略；或者，用于接收 UE上传的接入网络选择策略，所述 UE上传的接入网络选择策略为所述 UE从所述 ANDSF模块中获得。 78. The core network device according to claim 74, further comprising: a receiver, configured to receive the access network selection policy of the UE from the ANDSF module; or, configured to receive the access network uploaded by the UE. Selection strategy, the access network selection strategy uploaded by the UE is obtained by the UE from the ANDSF module.

79、一种用户设备，其特征在于，包括： 79. A user equipment, characterized by including:

接收器，用于接收接入网设备发送的接入网选择指示； Receiver, used to receive the access network selection instruction sent by the access network device;

第一处理器，用于根据所述接入网选择指示选择接入网。 A first processor, configured to select an access network according to the access network selection instruction.

80、根据权利要求 79所述的用户设备，其特征在于，还包括： 80. The user equipment according to claim 79, further comprising:

第二处理器，用于获得接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略； The second processor is used to obtain the access network discovery and selection function provided by the ANDSF module. Access network selection strategy;

第三处理器，用于根据所述接入网络选择策略生成业务接入策略；发送器，用于将生成的业务接入策略发送给接入网设备，使得所述接入网设备根据所述业务接入策略为所述 UE的业务选择接入网络。 A third processor, configured to generate a service access policy according to the access network selection policy; a transmitter, configured to send the generated service access policy to the access network device, so that the access network device can select the service access policy according to the access network selection policy. The service access policy selects an access network for the UE's service.

81、根据权利要求 80所述的用户设备，其特征在于，所述业务接入策略包括： 81. The user equipment according to claim 80, characterized in that the service access policy includes:

82、根据权利要求 80或 81所述的用户设备，其特征在于，所述发送器还用于：将所述业务接入策略对应的无线接入承载 RAB的标识或者 UE的标识发送给接入网设备，使得所述接入网设备根据所述 RAB 的标识或者所述 UE的标识，为所述 UE的业务选择接入网络。 82. The user equipment according to claim 80 or 81, characterized in that the transmitter is further configured to: send the identification of the radio access bearer RAB or the identification of the UE corresponding to the service access policy to the access network equipment, so that the access network equipment selects an access network for the service of the UE according to the identification of the RAB or the identification of the UE.

83、根据权利要求 81所述的用户设备，其特征在于，所述第三处理器具体用于： 83. The user equipment according to claim 81, characterized in that the third processor is specifically used to:

或者确定 UE的全部 RAB中承载的业务，并确定所述业务对应的 ANDSF 策略，根据所述 ANDSF策略生成业务接入策略。 Or determine the services carried in all RABs of the UE, determine the ANDSF policy corresponding to the service, and generate the service access policy according to the ANDSF policy.

84、根据权利要求 79所述的用户设备，其特征在于，所述接入网选择指示中携带业务标识和 /或接入网络标识。 84. The user equipment according to claim 79, characterized in that the access network selection indication carries a service identifier and/or an access network identifier.

85、根据权利要求 84所述的用户设备，其特征在于，所述接入网络标识为接入网络类型和 /或接入网络中接入点的标识。 85. The user equipment according to claim 84, wherein the access network identifier is an access network type and/or an identifier of an access point in the access network.

86、根据权利要求 79所述的用户设备，其特征在于，所述接收器还用于：接收接入网设备发送的命令消息，所述命令消息用于指示 UE遵从网络侧命令而不得自行决策其接入网络； 86. The user equipment according to claim 79, characterized in that the receiver is further configured to: receive a command message sent by the access network device, and the command message is used to instruct the UE to comply with network side commands and not to make decisions on its own its access network;

还包括：第四处理器，用于根据所述命令消息停止根据 ANDSF策略进行网络选择，以使所述第一处理器根据所述接入网选择指示确定接入网络。 It also includes: a fourth processor, configured to stop network selection according to the ANDSF policy according to the command message, so that the first processor determines the access network according to the access network selection indication.

87、一种用户设备，其特征在于，包括：第一处理器，用于获得接入网络选择策略以及接入网设备的信息，所述接入网络选择策略为接入网络发现和选择功能 ANDSF模块为所述 UE提供的； 87. A user equipment, characterized by: including: The first processor is configured to obtain the access network selection strategy and access network device information, where the access network selection strategy is provided by the access network discovery and selection function ANDSF module for the UE;

第二处理器，用于根据接入网络选择策略以及接入网设备的信息确定接入网络。 The second processor is used to determine the access network based on the access network selection policy and access network device information.

88、根据权利要求 87所述的用户设备，其特征在于，所述接入网设备的信息包括：接入网设备的负载信息或者接入网设备的接入倾向。 88. The user equipment according to claim 87, wherein the information about the access network device includes: load information of the access network device or access tendency of the access network device.

89、根据权利要求 88所述的用户设备，其特征在于，所述接入网设备的接入倾向包括： 89. The user equipment according to claim 88, characterized in that the access tendency of the access network device includes:

90、根据权利要求 87所述的用户设备，其特征在于，所述接入网络选择策略包括：无线接入承载 RAB的无线接入技术 RAT优先级，所述 RAT优先级生效时对应的接入网设备的负载门限。 90. The user equipment according to claim 87, characterized in that, the access network selection strategy includes: the radio access technology RAT priority of the wireless access bearer RAB, and the corresponding access when the RAT priority takes effect The load threshold of network equipment.

91、根据权利要求 90所述的用户设备，其特征在于，所述第二处理器具体用于： 91. The user equipment according to claim 90, characterized in that the second processor is specifically configured to:

92、根据权利要求 88或 89所述的用户设备，其特征在于，所述第二处理器具体用于： 92. The user equipment according to claim 88 or 89, characterized in that the second processor is specifically used to:

在所述接入网络选择策略允许接入的网络中，根据所述接入倾向指示选择接入网络。 In a network that is allowed to be accessed by the access network selection policy, an access network is selected according to the access tendency indication.

93、根据权利要求 92所述的用户设备，其特征在于，还包括： 93. The user equipment according to claim 92, further comprising:

第三处理器，用于生成随机因子；将所述随机因子与所述接入因子相比较，获得比较结果； The third processor is used to generate a random factor; compare the random factor with the access factor to obtain a comparison result;

如果所述比较结果符合预设规则，所述第二处理器根据所述接入倾向指示选择接入网络； If the comparison result meets the preset rules, the second processor selects an access network according to the access tendency indication;

如果所述比较结果不符合预设规则，所述第三处理器等待预设时间后再次生成新的随机因子。 If the comparison result does not comply with the preset rules, the third processor waits for a preset time and then generates a new random factor again.

94、一种接入网络发现和选择功能 ANDSF模块，其特征在于，包括：发送器，用于向用户设备 UE发送接入网络选择策略，所述接入网络选择策略包括：业务的无线接入技术 RAT优先级以及所述 RAT优先级生效时对应的接入网设备的负载门限；所述接入网络选择策略用于所述 UE根据所述接入网络选择策略和接入网设备的负载信息确定所述 UE业务的接入网络。 94. An access network discovery and selection function ANDSF module, characterized by including: A transmitter, configured to send an access network selection strategy to the user equipment UE, where the access network selection strategy includes: the radio access technology RAT priority of the service and the load of the corresponding access network device when the RAT priority takes effect. Threshold; The access network selection policy is used by the UE to determine the access network for the UE service based on the access network selection policy and load information of the access network device.

95、一种接入网设备，其特征在于，包括： 95. An access network device, characterized by: including:

发送器，用于向用户设备 UE发送接入网设备的信息，所述接入网设备的信息包括接入网设备的负载信息或者接入网设备的接入倾向；所述接入网设备的信息用于所述 UE根据所述接入网设备的信息以及接入网络发现和选择功能 ANDSF模块提供的接入网络选择策略确定所述 UE业务的接入网络。 A transmitter, configured to send information about the access network device to the user equipment UE, where the information about the access network device includes load information of the access network device or access tendency of the access network device; The information is used by the UE to determine the access network for the UE service based on the information of the access network device and the access network selection policy provided by the access network discovery and selection function ANDSF module.

96、根据权利要求 95所述的接入网设备，其特征在于，所述接入网设备的信息中还包括接入因子，所述接入因子用于所述 UE将生成的随机因子与所述接入因子相比较，并获得比较结果，如果所述比较结果符合预设规则，则 UE根据所述接入倾向指示选择接入网络；如果所述比较结果不符合预设规则，则 UE等待预设时间后再次生成新的随机因子。 96. The access network device according to claim 95, wherein the information of the access network device further includes an access factor, and the access factor is used by the UE to combine the generated random factor with the generated random factor. Compare the access factors and obtain the comparison result. If the comparison result conforms to the preset rules, the UE selects the access network according to the access tendency indication; if the comparison result does not conform to the preset rules, the UE waits. A new random factor is generated again after the preset time.