WO2015077923A1

WO2015077923A1 - Switching processing method, system and device

Info

Publication number: WO2015077923A1
Application number: PCT/CN2013/087870
Authority: WO
Inventors: 张健; 曾清海; 王可
Original assignee: 华为技术有限公司
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2015-06-04
Also published as: CN104995955B; CN104995955A

Abstract

Provided are a switching processing method, system and device. The method comprises: receiving, by a user equipment (UE), a switching policy and wireless fidelity (wifi) shunting configuration information corresponding to a first base station, which are sent by the first base station, wherein the switching policy is used for indicating that the UE conducts access point (AP) switching according to a roaming mechanism of a wireless local area network (WLAN) protocol (101); according to the wifi shunting configuration information corresponding to the first base station, communicating, by the UE, with a first AP discovered by the WLAN protocol; and communicating, by the UE, with the first AP, and when the UE moves, acquiring, by the UE, a second AP according to the switching policy corresponding to the first base station, performing decorrelation with the first AP, and communicating with the second AP so as to realize AP switching (103).

Description

切换处理方法和***及装置 Switching processing method and system and device

技术领域 Technical field

本发明实施例涉及通信技术，尤其涉及一种切换处理方法和***及装置。背景技术 The embodiments of the present invention relate to communication technologies, and in particular, to a handover processing method, system, and apparatus. Background technique

现有技术中，在基于第三代合作伙伴计划（The 3rd Generation Partnership Project; 简称： 3GPP) 蜂窝网和 wifi进行数据分流的场景中，主要通过长期演进（Long Term Evolution; 简称： LTE) 的演进型基站（evolved Node B; 简称： eNB ) 来控制用户设备 (User Equipment; 简称： UE) 的移动性。 In the prior art, in the scenario of data offloading based on the 3rd Generation Partnership Project (3GPP) cellular network and wifi, mainly through the evolution of Long Term Evolution (LTE) The type of base station (evolved Node B; eNB for short) controls the mobility of the user equipment (User Equipment; UE).

具体地， eNB控制 UE的移动性的具体实现方式主要为： UE接收 eNB 发送的配置信息，并根据该配置信息进行测量，获取测量结果，根据该配置信息中的上报方式，向 eNB报告该测量结果。 eNB根据测量结果选择对应的无线访问节点（Access Point; 简称： AP) 配置 wif分流。其中， eNB根据测量结果选择对应的 AP配置 wif分流的具体实现方式为： eNB向 AP发送携带有分流配置请求参数的 wifi分流请求消息，并接收 AP返回的携带有分流配置响应参数的 wifi分流响应消息， eNB再根据该 wifi分流响应消息，向 UE 发送分流配置响应参数，以使的 UE根据该分流配置响应参数，进行 wifi分流配置，选择对应的 AP接入，进行与 eNB和 wifi的通信过程。 Specifically, the specific implementation manner in which the eNB controls the mobility of the UE is mainly: the UE receives the configuration information sent by the eNB, performs measurement according to the configuration information, obtains the measurement result, and reports the measurement to the eNB according to the reporting manner in the configuration information. result. The eNB selects a corresponding wireless access node (Access Point; AP for short) according to the measurement result to configure the wif offload. The specific implementation manner of the eNB selecting the corresponding AP configuration wif offload according to the measurement result is: The eNB sends a wifi offload request message carrying the offload configuration request parameter to the AP, and receives the wifi offload response that is returned by the AP and carries the offload configuration response parameter. The eNB further sends a offload configuration response parameter to the UE according to the wifi offload response message, so that the UE performs the wifi offload configuration according to the offload configuration response parameter, selects the corresponding AP access, and performs communication process with the eNB and the wifi. .

但是，对于 wifi密集部署的场景中， UE移动会导致 AP频繁切换，且由于 UE必须根据 eNB指示进行 AP切换，因此，会导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销，尤其当 eNB和 AP之间的通信链路时延较大时，会降低切换性能，导致用户业务终端时间较长或者丢包较多。发明内容 However, in a scenario where the wifi is densely deployed, the UE moves the AP to frequently switch, and the UE must perform the AP handover according to the eNB. Therefore, the signaling interaction between the AP and the eNB and the UE is large, so that there is a large The handover delay and signaling overhead, especially when the communication link delay between the eNB and the AP is large, will reduce the handover performance, resulting in longer user service terminals or more packet loss. Summary of the invention

本发明实施例提供一种切换处理方法和***及装置，以解决现有技术中 UE必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题。本发明实施例的第一方面提供了一种切换处理方法，包括： UE接收第一基站发送的所述第一基站对应的切换策略和 wifi分流配置信息；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换； The embodiments of the present invention provide a handover processing method, system, and apparatus, so as to solve the problem that the UE must perform AP handover according to the indication of the eNB, and the signaling interaction between the AP and the eNB and the UE is relatively large, so that there is a large handover. Delay and signaling overhead issues. A first aspect of the embodiments of the present invention provides a handover processing method, including: receiving, by a UE, a handover policy and wifi offload configuration information corresponding to the first base station that is sent by a first base station, where the handover policy is used to indicate The UE performs AP handover according to the roaming mechanism of the WLAN protocol;

所述 UE根据所述第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信； The UE communicates with the first AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the first base station;

在所述 UE移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换。 When the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP to implement switching of the AP.

在第一方面的第一种可能实现方式中，所述第一基站对应的 wifi分流配置信息中包括第一 ESSID, 则所述方法还包括： In a first possible implementation manner of the first aspect, the wifi offload configuration information corresponding to the first base station includes a first ESSID, and the method further includes:

所述 UE在检测到所述第二 AP对应的第二 ESSID与所述第一 ESSID不相同时，向所述第一基站发送携带有所述第二 ESSID的指示消息，以供所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 When the second ESSID corresponding to the second AP is different from the first ESSID, the UE sends an indication message carrying the second ESSID to the first base station, for the first The base station establishes a communication link and a traffic association with the wifi controller corresponding to the second ESSID.

结合第一方面，在第一方面的第二种可能实现方式中，还包括：所述 UE与所述第二 AP进行通信，向所述第一基站上报所述第二 AP的 With reference to the first aspect, in a second possible implementation of the first aspect, the method further includes: the UE communicating with the second AP, reporting the second AP to the first base station

BSSID, 以供所述第一基站根据所述 BSSID,与所述第二 AP建立通信链路和分流关联。 a BSSID, for the first base station to establish a communication link and a traffic association with the second AP according to the BSSID.

结合第一方面，在第一方面的第三种可能实现方式中，还包括：所述 UE在移动过程中，若根据所述切换策略，没有获取所述第二 AP, 且与所述第一 AP去关联，则向所述第一基站上报 wifi空闲状态信息，以供所述第一基站根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 With reference to the first aspect, in a third possible implementation manner of the first aspect, the method further includes: when the UE is in the process of moving, if the second AP is not obtained according to the switching policy, and the first If the AP is associated, the wifi idle state information is reported to the first base station, so that the first base station stops the wifi control associated with establishing the communication link and the offload with the first base station according to the wifi idle state information. The device or AP sends wifi offload data.

结合第一方面至第一方面的第三种中任一种可能实现方式，在第一方面的第四种可能实现方式中，还包括： With reference to the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:

所述 UE接收第一基站发送的切换消息，所述切换消息包括：所述第二基站对应的 RRC连接配置信息；其中，所述第二基站对应的 RRC连接配置信息为所述第一基站与所述第二基站交互获取的信息，所述第二基站对应的 wifi分流配置信息和切换策略； The UE receives the handover message sent by the first base station, where the handover message includes: RRC connection configuration information corresponding to the second base station; where the RRC connection configuration information corresponding to the second base station is the first base station and The information obtained by the second base station, the wifi offload configuration information and the handover policy corresponding to the second base station;

所述 UE根据所述第二基站对应的 RRC连接配置信息，进行切换处理；所述 UE按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN 协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The UE performs a handover process according to the RRC connection configuration information corresponding to the second base station; the UE follows the WLAN offload configuration information corresponding to the second base station, and passes the WLAN. The AP discovered by the protocol performs communication, and performs AP handover processing according to the handover policy corresponding to the second base station during the UE mobility.

结合第一方面，在第一方面的第五种可能实现方式中，还包括：所述 UE当判断出需要切换回 LTE或者需要 LTE进行分流时，向所述第一基站发送 RRC连接建立请求； With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes: sending, by the UE, an RRC connection establishment request to the first base station when it is determined that the LTE connection is required to be switched back to the LTE or the LTE is required to be offloaded;

所述 UE接收所述第一基站根据所述 RRC连接建立请求所返回的 RRC 连接建立消息，所述 RRC连接建立消息包括所述第一基站对应的 wifi分流配置信息和切换策略。 The UE receives the RRC connection setup message that is returned by the first base station according to the RRC connection setup request, where the RRC connection setup message includes the wifi offload configuration information and the handover policy corresponding to the first base station.

结合第一方面，在第一方面的第六种可能实现方式中，还包括：所述 UE向所述第一基站返回 wifi分流配置拒绝消息，所述 wifi分流配置拒绝消息包括原因值； With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the method further includes: the UE returning a wifi offload configuration reject message to the first base station, where the wifi offload configuration reject message includes a cause value;

其中，所述原因值为如下任一种：所述第一基站对应的 wifi分流配置信息为所述 UE不接受访问公共陆地移动网络的 eNB所发送的 wifi分流配置信息，所述 UE已经接入或者准备接入除所述第一基站对应的 wifi分流配置信息中的 AP列表之外的其他 AP, 所述 UE正在进行的 wifi分流卸载但所述第一基站对应的 wifi分流配置信息中的当前服务的 QoS/QoE小于预设阈值且识别出所述第一基站对应的 wifi分流配置信息中增加了新的分流业务标识，所述 UE从 ANDSF获取的切换策略或者本地预存的切换策略与所述第一基站对应的 wifi分流配置信息中的切换策略不相同，所述 UE处于紧急呼叫状态，所述 UE正在接收 MBMS业务，和所述 UE的应用层识别当前业务在预计时间内终止。 The reason value is any one of the following: the wifi offload configuration information corresponding to the first base station is wifi offload configuration information sent by the eNB that does not accept access to the public land mobile network, and the UE has accessed Or preparing to access other APs other than the AP list in the wifi offload configuration information corresponding to the first base station, where the UE is performing wifi offload offloading but the current wifi shunt configuration information corresponding to the first base station The QoS/QoE of the service is smaller than the preset threshold, and the new WLAN service configuration information is added to the WLAN offload configuration information corresponding to the first base station, and the handover policy acquired by the UE from the ANDSF or the locally pre-stored handover policy is The handover policy in the wifi offload configuration information corresponding to the first base station is different, the UE is in an emergency call state, the UE is receiving the MBMS service, and the application layer of the UE identifies that the current service is terminated within the expected time.

本发明实施例的第二方面提供了一种切换处理方法，包括： A second aspect of the embodiments of the present invention provides a handover processing method, including:

第一基站向 wifi控制器或者 AP发送 wifi分流请求，并接收所述 wifi控制器或者 AP返回的 wifi分流响应，以与所述 wifi控制器或者 AP建立通信链路和分流关联； The first base station sends a wifi offload request to the wifi controller or the AP, and receives the wifi offload response returned by the wifi controller or the AP to establish a communication link and a shunt association with the wifi controller or the AP;

所述第一基站根据所述 wifi分流响应，向 UE发送所述第一基站对应的切换策略和 wifi分流配置信息，以供所述 UE根据所述第一基站对应的 wifi 分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在所述 UE 移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换。 Transmitting, by the first base station, the handover policy and the wifi offload configuration information corresponding to the first base station to the UE, according to the wifi offload response, for the UE to pass the WLAN offload configuration information corresponding to the first base station, and The first AP discovered by the WLAN protocol communicates, and when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, and associates with the first AP, and the foregoing The second AP performs communication to implement handover of the AP; The handover policy is used to instruct the UE to perform AP handover according to a roaming mechanism of the WLAN protocol.

在第二方面的第一种可能实现方式中，还包括： In a first possible implementation manner of the second aspect, the method further includes:

所述第一基站接收所述 UE发送的携带有第二 ESSID的指示消息，所述指示消息为所述 UE在检测到根据所述第一基站对应的切换策略获取的第二 AP对应的第二 ESSID 与所述第一基站对应的 wifi分流配置信息中的第一 ESSID不相同时向所述第一基站发送的指示消息； The first base station receives an indication message that is sent by the UE and carries a second ESSID, where the indication message is that the UE is configured to detect a second AP corresponding to the second AP that is obtained according to the handover policy corresponding to the first base station. An indication message sent to the first base station when the ESSID is different from the first ESSID in the wifi offload configuration information corresponding to the first base station;

所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 The first base station establishes a communication link and a traffic association with a wifi controller corresponding to the second ESSID.

结合第二方面，在第二方面的第二种可能实现方式中，还包括：所述第一基站接收所述 UE上报的 BSSID, 所述 BSSID为所述 UE在与根据所述第一基站对应的切换策略获取的第二 AP通信后上报的所述第二 AP 对应的 BSSID; With reference to the second aspect, in a second possible implementation manner of the second aspect, the method further includes: the first base station receiving a BSSID reported by the UE, where the BSSID is that the UE is corresponding to the first base station The BSSID corresponding to the second AP reported by the second AP after the handover policy is obtained;

所述第一基站与所述第二 AP建立通信链路和分流关联。 The first base station establishes a communication link and a traffic association with the second AP.

结合第二方面，在第二方面的第三种可能实现方式中，还包括：所述第一基站接收所述 UE上报的 wifi空闲状态信息，并根据所述 wifi 空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 With reference to the second aspect, in a third possible implementation manner of the second aspect, the method further includes: the first base station receiving the wifi idle state information reported by the UE, and stopping the location according to the wifi idle state information The first base station establishes a communication link and a wifi controller or an AP associated with the offloading to send wifi offload data.

结合第二方面至第二方面的第三种中任一种可能实现方式，在第二方面的第四种可能实现方式中，还包括： With reference to the possible implementation of the third aspect to the third aspect of the second aspect, in a fourth possible implementation manner of the second aspect, the method further includes:

所述第一基站向第二基站发送切换请求消息，所述切换请求消息包括：所述第一基站对应的 wifi分流配置信息，以指示所述第二基站根据所述第一基站对应的 wifi分流配置信息，与所述第一 AP或者其他 AP进行 wifi分流配置处理；其中，所述其他 AP是指与所述第一基站建立通信链路和分流关联的 wifi控制器下的除所述第一 AP之外的其他 AP; The first base station sends a handover request message to the second base station, where the handover request message includes: wifi offload configuration information corresponding to the first base station, to indicate that the second base station is configured according to the wifi shunt corresponding to the first base station. Configuring the information, performing the wifi offloading configuration process with the first AP or other APs, where the other APs refer to the wifi controller associated with the first base station to establish a communication link and the offloading Other APs other than the AP;

所述第一基站接收所述第二基站返回的切换响应消息，所述切换响应消息包括所述第二基站对应的 RRC连接配置信息； The first base station receives a handover response message returned by the second base station, where the handover response message includes RRC connection configuration information corresponding to the second base station;

所述第一基站发送切换消息给所述 UE,所述切换消息包括第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，以供所述 UE根据所述第二基站对应的 RRC连接配置信息，进行切换处理，按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The first base station sends a handover message to the UE, where the handover message includes RRC connection configuration information, wifi offload configuration information, and a handover policy corresponding to the second base station, where the UE is configured according to the RRC corresponding to the second base station. Connecting configuration information, performing handover processing, according to the second base station pair The wifi offload configuration information is communicated with the AP that is discovered by the WLAN protocol, and the AP handover process is performed according to the handover policy corresponding to the second base station during the UE mobility.

本发明实施例的第三方面提供了一种切换处理装置，包括： A third aspect of the embodiments of the present invention provides a switching processing apparatus, including:

收发模块，用于接收第一基站发送的所述第一基站对应的切换策略和 wifi分流配置信息；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换； The transceiver module is configured to receive, by the first base station, a handover policy and wifi offload configuration information corresponding to the first base station, where the handover policy is used to indicate that the UE performs AP handover according to a roaming mechanism of the WLAN protocol;

通信模块，用于根据所述第一基站对应的 wifi 分流配置信息，与通过 WLAN协议发现的第一 AP进行通信； a communication module, configured to communicate with the first AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the first base station;

切换处理模块，用于在所述装置移动时，根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换。 a switching processing module, configured to: when the device moves, acquire a second AP according to a handover policy corresponding to the first base station, associate with the first AP, and communicate with the second AP to implement an AP. Switching.

在第三方面的第一种可能实现方式中，所述第一基站对应的 wifi分流配置信息中包括第一 ESSID, 则所述装置还包括： In a first possible implementation manner of the third aspect, the wifi offload configuration information corresponding to the first base station includes a first ESSID, and the device further includes:

检测模块，用于检测所述第二 AP对应的第二 ESSID与所述第一 ESSID 是否相同； a detecting module, configured to detect whether the second ESSID corresponding to the second AP is the same as the first ESSID;

所述收发模块，用于在所述检测模块检测到所述第二 ESSID与所述第一 ESSID不相同时，向所述第一基站发送携带有所述第二 ESSID的指示消息，以供所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 The transceiver module is configured to: when the detecting module detects that the second ESSID is different from the first ESSID, send an indication message carrying the second ESSID to the first base station, where The first base station establishes a communication link and a traffic association with the wifi controller corresponding to the second ESSID.

结合第三方面，在第三方面的第二种可能实现方式中，所述通信模块还用于与所述第二 AP进行通信； With reference to the third aspect, in a second possible implementation manner of the third aspect, the communications module is further configured to communicate with the second AP;

则所述收发模块，用于向所述第一基站上报所述第二 AP的 BSSID, 以供所述第一基站根据所述 BSSID, 与所述第二 AP建立通信链路和分流关联。 And the transceiver module is configured to report the BSSID of the second AP to the first base station, so that the first base station establishes a communication link and a traffic association with the second AP according to the BSSID.

结合第三方面，在第三方面的第三种可能实现方式中，所述收发模块还用于在所述装置在移动过程中，若根据所述切换策略，没有获取所述第二 AP, 且与所述第一 AP去关联，则向所述第一基站上报 wifi空闲状态信息，以供所述第一基站根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 With reference to the third aspect, in a third possible implementation manner of the third aspect, the transceiver module is further configured to: when the device is in the process of moving, if the second AP is not obtained according to the switching policy, and De-associating with the first AP, reporting wifi idle state information to the first base station, where the first base station stops establishing a communication link with the first base station according to the wifi idle state information. The wifi controller or AP that is associated with the offloading sends wifi offload data.

结合第三方面至第三方面的第三种中任一种可能实现方式，在第三方面的第四种可能实现方式中，所述收发模块还用于接收第一基站发送的切换消息，所述切换消息包括：所述第二基站对应的 RRC连接配置信息；其中，所述第二基站对应的 RRC连接配置信息为所述第一基站与所述第二基站交互获取的信息，所述第二基站对应的 wifi分流配置信息和切换策略； With reference to the third aspect to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the transceiver module is further configured to receive a handover cancellation sent by the first base station The handover message includes: RRC connection configuration information corresponding to the second base station, where the RRC connection configuration information corresponding to the second base station is information obtained by the first base station and the second base station. The wifi offload configuration information and the handover policy corresponding to the second base station;

所述切换处理模块还用于根据所述第二基站对应的 RRC连接配置信息，进行切换处理； The handover processing module is further configured to perform handover processing according to the RRC connection configuration information corresponding to the second base station;

所述通信模块还用于按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信； The communication module is further configured to communicate with the AP discovered by the WLAN protocol according to the wifi offload configuration information corresponding to the second base station;

所述切换处理模块还用于在所述装置移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The handover processing module is further configured to perform AP handover processing according to a handover policy corresponding to the second base station during the moving of the device.

结合第三方面，在第三方面的第五种可能实现方式中，所述收发模块还用于当判断出需要切换回 LTE或者需要 LTE进行分流时，向所述第一基站发送 RRC连接建立请求； With reference to the third aspect, in a fifth possible implementation manner of the third aspect, the transceiver module is further configured to: when it is determined that the handover needs to be switched back to the LTE or the LTE is required to perform the offloading, the RRC connection establishment request is sent to the first base station. ;

所述收发模块还用于接收所述第一基站根据所述 RRC 连接建立请求所返回的 RRC连接建立消息，所述 RRC连接建立消息包括所述第一基站对应的 wifi分流配置信息和切换策略。 The transceiver module is further configured to receive an RRC connection setup message that is returned by the first base station according to the RRC connection setup request, where the RRC connection setup message includes the wifi offload configuration information and the handover policy corresponding to the first base station.

结合第三方面，在第三方面的第六种可能实现方式中，所述收发模块还用于向所述第一基站返回 wifi分流配置拒绝消息，所述 wifi分流配置拒绝消息包括原因值； With reference to the third aspect, in a sixth possible implementation manner of the third aspect, the transceiver module is further configured to: return a wifi offload configuration reject message to the first base station, where the wifi offload configuration reject message includes a cause value;

本发明实施例的第四方面提供了一种切换处理装置，包括： A fourth aspect of the embodiments of the present invention provides a switching processing apparatus, including:

发送模块，用于向 wifi控制器或者 AP发送 wifi分流请求；接收模块，用于接收所述 wifi控制器或者 AP返回的 wifi分流响应，以与所述 wifi控制器或者 AP建立通信链路和分流关联； a sending module, configured to send a wifi offload request to the wifi controller or the AP; a receiving module, configured to receive a wifi offload response returned by the wifi controller or the AP, to establish a communication link and a traffic association with the wifi controller or the AP;

所述发送模块还用于根据所述 wifi分流响应，向 UE发送所述第一基站对应的切换策略和 wifi分流配置信息，以供所述 UE根据所述第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在所述 UE移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换； The sending module is further configured to send, according to the wifi offload response, the handover policy and the wifi offload configuration information corresponding to the first base station, to the UE, according to the wifi offload configuration information corresponding to the first base station, Communicating with the first AP discovered by the WLAN protocol, and when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, and associates with the first AP, The second AP performs communication to implement handover of the AP;

其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换。 The handover policy is used to instruct the UE to perform AP handover according to a roaming mechanism of the WLAN protocol.

在第四方面的第一种可能实现方式中，所述接收模块还用于接收所述 UE 发送的携带有第二 ESSID的指示消息，所述指示消息为所述 UE在检测到根据所述装置对应的切换策略获取的第二 AP对应的第二 ESSID与所述装置对应的 wifi分流配置信息中的第一 ESSID不相同时向所述装置发送的指示消息； In a first possible implementation manner of the fourth aspect, the receiving module is further configured to receive an indication message that is sent by the UE and that carries a second ESSID, where the indication message is that the UE is detected according to the device. And an indication message sent to the device when the second ESSID corresponding to the second AP that is obtained by the corresponding switching policy is different from the first ESSID in the wifi offload configuration information corresponding to the device;

则所述装置还包括： Then the device further comprises:

建立模块，用于与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 And a establishing module, configured to establish a communication link and a traffic association with the wifi controller corresponding to the second ESSID.

结合第四方面，在第四方面的第二种可能实现方式中，所述接收模块还用于接收所述 UE上报的 BSSID, 所述 BSSID为所述 UE在与根据所述第一基站对应的切换策略获取的第二 AP 通信后上报的所述第二 AP 对应的 BSSID; With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the receiving module is further configured to receive a BSSID that is reported by the UE, where the BSSID is that the UE is corresponding to the first base station. a BSSID corresponding to the second AP that is reported after the second AP communication is obtained by the handover policy;

则所述装置还包括： Then the device further comprises:

建立模块，用于与所述第二 AP建立通信链路和分流关联。 And a establishing module, configured to establish a communication link and a traffic association with the second AP.

结合第四方面，在第四方面的第三种可能实现方式中，所述接收模块还用于接收所述 UE上报的 wifi空闲状态信息，并根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the receiving module is further configured to receive the wifi idle state information reported by the UE, and stop to and according to the wifi idle state information. The first base station establishes a communication link and a wifi controller or an AP associated with the offloading to transmit wifi offload data.

结合第四方面至第四方面的第三种中的任一种可能实现方式，在第四方面的第四种可能实现方式中，所述发送模块还用于向第二基站发送切换请求消息，所述切换请求消息包括：所述装置对应的 wifi分流配置信息，以指示所述第二基站根据所述装置对应的 wifi分流配置信息，与所述第一 AP或者其他 AP进行 wifi分流配置处理；其中，所述其他 AP是指与所述装置建立通信链路和分流关联的 wifi控制器下的除所述第一 AP之外的其他 AP; With reference to any one of the fourth aspect to the third aspect of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the sending module is further configured to send a handover request message to the second base station, The handover request message includes: wifi offload configuration information corresponding to the device, to indicate The second base station performs wifi offload configuration processing with the first AP or other APs according to the wifi offload configuration information corresponding to the device, where the other APs are associated with establishing a communication link and a traffic distribution with the device. Other APs other than the first AP under the wifi controller;

所述接收模块还用于接收所述第二基站返回的切换响应消息，所述切换响应消息包括所述第二基站对应的 RRC连接配置信息； The receiving module is further configured to receive a handover response message that is returned by the second base station, where the handover response message includes RRC connection configuration information corresponding to the second base station;

所述发送模块还用于发送切换消息给所述 UE,所述切换消息包括第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，以供所述 UE 根据所述第二基站对应的 RRC连接配置信息，进行切换处理，按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The sending module is further configured to send a handover message to the UE, where the handover message includes RRC connection configuration information, wifi offload configuration information, and a handover policy corresponding to the second base station, where the UE corresponds to the second base station. The RRC connection configuration information, performing handover processing, communicating with the AP discovered by the WLAN protocol according to the wifi offload configuration information corresponding to the second base station, and following the second base station during the UE moving process The corresponding switching policy performs AP switching processing.

本发明实施例的第五方面提供了一种用户设备，包括：存储器，用于存储指令；处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如上述第一方面所述的切换处理方法。 A fifth aspect of the embodiments of the present invention provides a user equipment, including: a memory for storing an instruction; a processor coupled to the memory, the processor being configured to execute an instruction stored in the memory, And the processor is configured to perform the handover processing method as described in the first aspect above.

本发明实施例的第六方面提供了一种基站，包括：存储器，用于存储指令；处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如上述第二方面所述的切换处理方法。 A sixth aspect of the embodiments of the present invention provides a base station, including: a memory, configured to store an instruction; a processor coupled to the memory, the processor configured to execute an instruction stored in the memory, and The processor is configured to perform the handover processing method as described in the second aspect above.

本发明实施例的第七方面提供了一种切换处理***，包括： UE和基站，其中，所述 UE为如上述第三方面所述的切换处理装置；所述基站为如上述第四方面所述的切换处理装置。 A seventh aspect of the embodiments of the present invention provides a handover processing system, including: a UE and a base station, where the UE is the handover processing apparatus according to the foregoing third aspect; The switching processing device described.

本发明实施例切换处理方法和***及装置， UE接收第一基站发送的该第一基站对应的切换策略和 wifi分离配置信息，另外， UE根据第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，在 UE移动时， UE根据第一基站对应的切换策略，获取第二 AP, 与第一 AP去关联，并与第二 AP进行通信，以实现 AP切换，由于切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换，即 UE移动过程中只需要根据切换策略实现 AP的切换，因此，有效地解决了现有技术中 UE必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题，从而有效地提高了切换性能。附图说明 In the embodiment of the present invention, the handover processing method, the system, and the device, the UE receives the handover policy and the wifi separation configuration information corresponding to the first base station, and the UE, according to the wifi offload configuration information corresponding to the first base station, and the WLAN The first AP that is discovered by the protocol performs communication. When the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP to implement AP handover. The handover policy is used to indicate that the UE performs the AP handover according to the roaming mechanism of the WLAN protocol, that is, the UE only needs to implement the handover of the AP according to the handover policy, so that the UE must perform the AP handover according to the indication of the eNB in the prior art. As a result, there are more signaling interactions between the AP and the eNB and the UE, so that there is a large cut. The delay and signaling overhead problems are changed, thereby effectively improving the handover performance. DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

图 1为本发明切换处理方法所基于的 eNB分流的 wifi分流架构示意图；图 2为本发明切换处理方法所基于的分组数据网络网关（PDN Gateway; 简称： PGW) 分流的 wifi分流架构示意图； 1 is a schematic diagram of a wifi offload architecture of an eNB offloading based on the handover processing method of the present invention; FIG. 2 is a schematic diagram of a wifi offload architecture of a packet data network gateway (PDN Gateway; PGW for short) based on the handover processing method of the present invention;

图 3为本发明切换处理方法的一个实施例的流程图； 3 is a flowchart of an embodiment of a handover processing method according to the present invention;

图 4为本发明切换处理方法的还一个实施例的流程图； 4 is a flowchart of still another embodiment of a handover processing method according to the present invention;

图 5为本发明切换处理方法的还一个实施例的流程图； FIG. 5 is a flowchart of still another embodiment of a handover processing method according to the present invention; FIG.

图 6为本发明切换处理方法的再一个实施例的流程图； 6 is a flowchart of still another embodiment of a handover processing method according to the present invention;

图 7为本发明切换处理装置的一个实施例的结构示意图； 7 is a schematic structural diagram of an embodiment of a handover processing apparatus according to the present invention;

图 8为本发明切换处理装置的另一个实施例的结构示意图； 8 is a schematic structural diagram of another embodiment of a handover processing apparatus according to the present invention;

图 9为本发明切换处理装置的再一个实施例的结构示意图； FIG. 9 is a schematic structural diagram of still another embodiment of a handover processing apparatus according to the present invention; FIG.

图 10为本发明切换处理装置的另一个实施例的结构示意图。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作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。 FIG. 10 is a schematic structural diagram of another embodiment of a handover processing apparatus according to 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 those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

图 1为本发明切换处理方法所基于的 eNB分流的 wifi分流架构示意图，图 2为本发明切换处理方法所基于的分组数据网络网关（PDN Gateway; 简称： PGW)分流的 wifi分流架构示意图，如图 1和图 2所示，当 wifi分流和汇聚发生在演进的分组核心网（Evolved Packet Core; 简称： EPC)中的 PGW 时， PGW作为 wifi分流的锚点。当 wifi分流和汇聚发生在 3GPP的无线接入网，如 E-UTRAN或者 UTRAN时， eNB或者 RNC作为 wifi分流的锚点。在无线层面， UE可以同时与 LTE和 wifi有无线连接或者进行无线通信，或者 UE同时与 UMTS和 wifi有无线连接或者进行无线通信。 1 is a schematic diagram of a wifi offload architecture of an eNB offload based on a handover processing method according to the present invention. FIG. 2 is a schematic diagram of a wifi offload architecture of a packet data network gateway (PDN Gateway; PGW for short) based on the handover processing method of the present invention, such as As shown in FIG. 1 and FIG. 2, when the wifi offloading and aggregation occurs in the PGW in the Evolved Packet Core (EPC), the PGW acts as an anchor for the wifi offload. When wifi offloading and aggregation occurs in 3GPP wireless access For the network, such as E-UTRAN or UTRAN, the eNB or RNC acts as an anchor for wifi offload. At the wireless level, the UE can have a wireless connection or wireless communication with LTE and wifi at the same time, or the UE has a wireless connection or wireless communication with UMTS and wifi at the same time.

另夕卜，当 UE在蜂窝网处于无线资源控制连接状态（RRC_CONNECTED) 且关联了 wifi接入点时，相当于在蜂窝网和 wifi进行***间 CA。 UE在蜂窝网也可能处于无线资源控制空闲状态（RRC_IDLE)，这种情况下 UE的全部业务需要通过 wifi进行通信。 In addition, when the UE is in the RRC connection state (RRC_CONNECTED) and the wifi access point is associated with the UE, it is equivalent to performing an inter-system CA on the cellular network and wifi. The UE may also be in the radio resource control idle state (RRC_IDLE) in the cellular network. In this case, all services of the UE need to communicate through wifi.

图 3为本发明切换处理方法的一个实施例的流程图，基于图 1或图 2所示的 eNB分流的 wifi分流架构，如图 3所示，本实施例的方法可以包括：步骤 101、 UE接收第一基站发送的该第一基站对应的切换策略和 wifi分流配置信息；其中，该切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换。 FIG. 3 is a flowchart of an embodiment of a handover processing method according to the present invention. Based on the wifi offload architecture of the eNB offloading shown in FIG. 1 or FIG. 2, as shown in FIG. 3, the method in this embodiment may include: Step 101: UE And receiving, by the first base station, a handover policy and wifi offload configuration information corresponding to the first base station, where the handover policy is used to indicate that the UE performs AP handover according to a roaming mechanism of the WLAN protocol.

步骤 102、 UE根据该第一基站对应的 wifi分流配置信息，与通过 WLAN 协议发现的第一 AP进行通信。 Step 102: The UE communicates with the first AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the first base station.

步骤 103、 UE与第一 AP进行通信，在该 UE移动时，该 UE根据该第一基站对应的切换策略，获取第二 AP, 与该第一 AP去关联，与该第二 AP 进行通信，以实现 AP的切换。 Step 103: The UE communicates with the first AP, and when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP. To achieve AP switching.

在本实施例中，举例来说， UE在移动过程中， UE根据该切换策略，测量到第一 AP的信号强度小于第一预设门限和 /或根据信标（beacon) 中第一 AP的负荷大于第二预设门限，而且第二 AP的信号强度大于该第一预设门限和 /或其负荷小于该第二预设门限，则将第一 AP去关联，并与第二 AP进行通信，以实现 AP的切换。 In this embodiment, for example, when the UE moves, the UE measures, according to the handover policy, that the signal strength of the first AP is less than the first preset threshold and/or according to the first AP in the beacon. If the load is greater than the second preset threshold, and the signal strength of the second AP is greater than the first preset threshold and/or the load is less than the second preset threshold, the first AP is de-associated and communicates with the second AP. To achieve AP switching.

在本实施例中， UE接收第一基站发送的该第一基站对应的切换策略和 wifi分离配置信息，另外， UE根据第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，在 UE移动时， UE根据第一基站对应的切换策略，获取第二 AP, 与第一 AP去关联，并与第二 AP进行通信，以实现 AP切换，由于切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换，即 UE移动过程中只需要根据切换策略实现 AP的切换，因此，有效地解决了现有技术中 UE必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题，从而有效地提高了切换性能。 In this embodiment, the UE receives the handover policy and the wifi separation configuration information corresponding to the first base station that is sent by the first base station, and the UE, according to the wifi offload configuration information corresponding to the first base station, and the first AP that is discovered through the WLAN protocol. Communicating, when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP to implement AP handover, because the handover policy is used to indicate the The UE performs the AP handover according to the roaming mechanism of the WLAN protocol, that is, the UE only needs to implement the handover of the AP according to the handover policy during the UE mobility process. Therefore, the AP and the eNB are effectively caused by the UE in the prior art that the UE must perform the AP handover according to the indication of the eNB. There are many signaling interactions between UEs, so there are large handover delays and signaling overhead problems. And effectively improve the switching performance.

进一步的，在本发明的另一个实施例中，在上述 3所示实施例的基础上，以第一基站直接与 AP建立通信链路和分流关联，即没有 wifi控制器时，该 wifi控制器可以为 wifi AC、 WAG或者 wifi路由器的情况为例，步骤 103之后，该方法还可以包括： Further, in another embodiment of the present invention, on the basis of the foregoing embodiment shown in FIG. 3, the first base station directly establishes a communication link and a traffic association with the AP, that is, when there is no wifi controller, the wifi controller For example, in the case of a wifi AC, a WAG, or a wifi router, after the step 103, the method may further include:

UE与第二 AP进行通信，向第一基站上报该第二 AP的基本服务集标识 (Basic Service Set Identifier;简称： BSSID)，以供该第一基站根据该 BSSID, 与第二 AP建立通信链路和分流关联。 The UE communicates with the second AP, and reports a Basic Service Set Identifier (BSSID) of the second AP to the first base station, so that the first base station establishes a communication chain with the second AP according to the BSSID. Roads are associated with shunts.

更进一步的，在本发明的又一个实施例中，在上述图 3所示实施例的基础上，该方法还可以包括： Further, in still another embodiment of the present invention, based on the foregoing embodiment shown in FIG. 3, the method may further include:

UE在移动过程中，若根据切换策略，没有获取第二 AP，且与第一 AP 去关联，则向该第一基站上报 wifi空闲状态信息，以供第一基站根据该 wifi 空闲状态信息，停止向该第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 If the UE does not acquire the second AP according to the handover policy and is associated with the first AP, the UE reports the wifi idle state information to the first base station, so that the first base station stops according to the wifi idle state information. Establishing a communication link to the first base station and a wifi controller or an AP associated with the offloading to transmit wifi offload data.

在本实施例中，由于 wifi覆盖问题，当 UE与第一 AP去关联后没有合适的其他 AP可以关联，因此， UE可以向第一基站上报 wifi空闲状态信息，以供第一基站根据该 wifi空闲状态信息，停止向该第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 In this embodiment, due to the wifi coverage problem, when the UE is de-associated with the first AP, no other APs can be associated. Therefore, the UE may report the wifi idle state information to the first base station, according to the wifi. The idle state information stops the establishment of the communication link to the first base station and the wifi controller or the AP associated with the offloading to send the wifi offload data.

图 4为本发明切换处理方法的还一个实施例的流程图，如图 4所示，该方法包括： 4 is a flowchart of still another embodiment of a handover processing method according to the present invention. As shown in FIG. 4, the method includes:

步骤 201、 UE接收第一基站发送的该第一基站对应的切换策略和 wifi分流配置信息；其中，该切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换。 Step 201: The UE receives the handover policy and the wifi offload configuration information corresponding to the first base station sent by the first base station, where the handover policy is used to indicate that the UE performs AP handover according to the roaming mechanism of the WLAN protocol.

步骤 202、 UE根据该第一基站对应的 wifi分流配置信息，与通过 WLAN 协议发现的该第一 AP进行通信。 Step 202: The UE communicates with the first AP discovered by using the WLAN protocol according to the wifi offload configuration information corresponding to the first base station.

在本实施例中，第一基站向 wifi控制器，例如： wifi接入控制器（Access Controller; 简称： AC) 、 wifi接入网关（Wifi Access Gateway; 简称： WAG) 或者 wifi路由器（router) ，发送 wifi分流请求消息，该 wifi分流请求消息可以包括：该第一基站的 MAC地址， GPRS传输协议（GPRS Tunnel Protocol; 简称： GTP) 端节点标识（Terminal Endpoint Identifier; 简称： TEID) ，所需分流的无线承载标识（Radio Bearer ID; 简称： RB ID) ，所需分流的无线承载的服务质量（Quality of Service; 简称： QoS ) 信息、 wifi AC、 WAG或者 wifi路由器对应的 ESSID。 In this embodiment, the first base station is to the wifi controller, for example, a wifi access controller (Access Controller; abbreviation: AC), a wifi access gateway (WA Access Gateway; WAG), or a wifi router (router). Sending a wifi offload request message, the wifi offload request message may include: a MAC address of the first base station, a GPRS Tunnel Protocol (GTP) end node identifier (Terminal Endpoint Identifier; TEID), The radio bearer ID (abbreviation: RB ID) to be offloaded, the quality of service (QoS) information of the radio bearer to be offloaded, the ESSID corresponding to the wifi AC, WAG, or wifi router.

另外， wifi AC、 WAG或者 wifi路由器接收该 wifi分流请求消息，并执行接纳控制，选定可以接受哪些 RB ID进行关联，建立 RB ID和 wifi接入类别标识（Access Category ID; 简称： AC ID) 关联关系，向该第一基站发送 wifi分流响应消息，其中，该 wifi分流响应消息可以包括： wifi AC、 WAG 或者 wifi路由器对应的 ESSID, GTP TEID、 RB ID, AC ID等信息。 In addition, the wifi AC, WAG or wifi router receives the wifi offload request message, and performs admission control, selects which RB IDs can be accepted for association, and establishes an RB ID and a wifi access category identifier (Access Category ID; AC ID for short). The association relationship sends a wifi offload response message to the first base station, where the wifi offload response message may include: ESSID, GTP TEID, RB ID, AC ID and the like corresponding to the wifi AC, WAG or wifi router.

可选地，该 wifi分流响应消息中还可以包括： wifi AC、 WAG或者 wifi 路由器的能力信息或者所支持的 wifi协议版本信息。另外，还需要说明的是， wifi AC, WAG或者 wifi路由器也可能在接纳控制时，修改所需分流的无线承载的服务质量信息，则在 wifi分流响应消息中还包括：修改后的所需分流的无线承载的服务质量信息，从而使得第一基站与 wifi AC、 WAG或者 wifi 路由器建立通信链路和分流关联。其中，每个 wifi AC、 WAG或者 wifi路由器包括多个 AP。 Optionally, the wifi offload response message may further include: capability information of the wifi AC, WAG, or wifi router or supported wifi protocol version information. In addition, it should be noted that the wifi AC, WAG or wifi router may also modify the quality of service information of the required offloaded radio bearer in the admission control, and the wifi offload response message further includes: the modified required shunt The quality of service carried by the radio, so that the first base station establishes a communication link and a shunt association with the wifi AC, WAG or wifi router. Among them, each wifi AC, WAG or wifi router includes multiple APs.

第一基站向 UE发送该第一基站对应的 wifi分流配置信息，可选地，该 wifi分流配置信息包括： wifi AC、 WAG或者 wifi路由器对应的 ESSID (即第一 ESSID) ，所分流业务的 RB ID和其对应的 AC ID, QoS信息。 The first base station sends the wifi offload configuration information corresponding to the first base station to the UE. Optionally, the wifi offload configuration information includes: an ESSID corresponding to the wifi AC, the WAG, or the wifi router (ie, the first ESSID), and the RB of the offloaded service ID and its corresponding AC ID, QoS information.

在本实施例中， UE根据第一基站对应的 wifi分流配置信息，建立 LTE 协议栈的 RB, 分流到 wifi的 RB所对应的接入类别 AC、 RB和 AC的关联，向第一基站返回 wifi分流配置完成的消息。需要说明的是，对于 PGW分流或者 eNB分流但全部数据通过 wifi和 UE通信的 RB， UE也可以根据第一基站发送的第一基站对应的 wifi分流配置信息，预先在 LTE协议栈建立这些 RB, 从而当这些 RB需要从 wifi重新迁移到 LTE时，不需要基站另外通过 RRC消息重新配置 RB。其中， wifi分流完成配置的消息可以通过 RRC连接重配置完成（RRC Connection Reconfiguration Complete) 消息或 RRC连接建立完成（RRC Connection Setup Complete) 消息或者 RRC连接重建立完成消息（RRC Connection Reestablishment Complete) 等发送给基站。 In this embodiment, the UE establishes an RB of the LTE protocol stack according to the wifi offload configuration information corresponding to the first base station, and associates the access category AC, RB, and AC corresponding to the RB of the wifi, and returns the wifi to the first base station. The message that the configuration is completed is offloaded. It should be noted that the RB may be established in the LTE protocol stack in advance according to the WLAN offload configuration information corresponding to the first base station sent by the first base station. Thus, when these RBs need to be re-migrated from wifi to LTE, the base station is not required to additionally reconfigure the RB through the RRC message. The WLAN connection reconfiguration complete message (RRC Connection Reconfiguration Complete) message or the RRC connection setup complete message (RRC Connection Reestablishment Complete) or the RRC connection reestablishment complete message may be sent to the RRC connection reconfiguration complete message. Base station.

另外， UE根据 WLAN协议发现第一 AP, 认证、关联或者重关联第一 AP,并在认证和关联成功后与该第一 AP进行通信。 UE还可以同时通过 LTE 协议与第一基站通信。 In addition, the UE discovers the first AP according to the WLAN protocol, authenticates, associates, or re-associates the first AP, and communicates with the first AP after the authentication and association succeeds. UE can also pass LTE at the same time The protocol communicates with the first base station.

需要说明的是，在本实施例中，第一基站向 UE发送第一基站对应的 wifi 分流配置信息和切换策略可以包含在同一条消息中，或者使用不同的消息分别发送。例如：第一基站根据 UE是否移动以及 UE移动速度在向 UE发送 wifi分流配置信息一段时间之后再发送切换策略。可选地，第一基站在该 wifi 分流配置信息中还可以配置 UE对 wifi的接收信号强度、 wifi负荷等信息进行测量和报告，以协助 UE进行 AP发现和选择。另外， wifi分流配置信息和 /或切换策略可以通过 RRC链接重配置（RRC Connection Reconfiguration)消息或含移动性控制信息（Mobility Control Information) 的 RRC连接重配置消息或 RRC连接建立（RRC Connection Setup)消息或 RRC连接重建立（RRC Connection Reestablishment ) 消息等发送个 UE。 It should be noted that, in this embodiment, the first base station sends the wifi offload configuration information corresponding to the first base station to the UE, and the handover policy may be included in the same message, or sent by using different messages. For example: the first base station sends the handover policy after sending the wifi offload configuration information to the UE for a period of time according to whether the UE moves and the UE moving speed. Optionally, the first base station may further configure, in the wifi offload configuration information, the UE to measure and report information such as the received signal strength and the wifi load of the wifi, to assist the UE in performing AP discovery and selection. In addition, the wifi offload configuration information and/or the handover policy may be an RRC Connection Reconfiguration message or an RRC Connection Reconfiguration message or an RRC Connection Setup message including Mobility Control Information. Or a UE is transmitted by an RRC Connection Reestablishment message or the like.

步骤 203、在该 UE移动时，该 UE根据该第一基站对应的切换策略，获取第二 AP, 与该第一 AP去关联，与该第二 AP进行通信，以实现 AP的切换。 Step 203: When the UE moves, the UE obtains the second AP according to the handover policy corresponding to the first base station, and associates with the first AP to communicate with the second AP to implement switching of the AP.

在本实施例中， UE在移动过程中，按照切换策略，即按照 WLAN协议的漫游机制发现第二 AP, 并实现 UE从第一 AP到第二 AP的切换。特别的，在 UE和 WLAN均支持 FT的情况下，根据 FT协议切换 AP。 In this embodiment, the UE discovers the second AP according to the handover policy, that is, according to the roaming mechanism of the WLAN protocol, and implements handover of the UE from the first AP to the second AP. In particular, in the case where both the UE and the WLAN support FT, the AP is switched according to the FT protocol.

另外，若 UE在同一个扩展服务集（Extended Service Set; 简称： ESS ) 内的不同 AP间移动时，可以由 wifi AC、 WAG或者 wifi路由器完成认证、业务数据流的转发等过程，遵循 WLAN漫游协议。可选地，在 UE移动时，第一基站可以根据网络部署（deployment)或 0AM或 ANDSF获取的信息或者根据 UE测量报告向 UE发送的推荐候选目标 AP列表，以协助 UE进行 AP发现和选择，进一步降低切换延迟和节省 UE电池消耗。 In addition, if the UE moves between different APs in the same extended service set ( ESS ), the wifi AC, WAG, or wifi router can complete the process of authentication, service data flow forwarding, etc., and follow WLAN roaming. protocol. Optionally, when the UE moves, the first base station may assist the UE to perform AP discovery and selection according to information obtained by network deployment or 0AM or ANDSF or a recommended candidate target AP list sent to the UE according to the UE measurement report. Further reduce switching delay and save UE battery consumption.

步骤 204、UE在检测到该第二 AP对应的第二 ESSID与该第一 ESSID不相同时，向该第一基站发送携带有该第二 ESSID的指示消息，以供该第一基站与该第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 Step 204: When detecting that the second ESSID corresponding to the second AP is different from the first ESSID, the UE sends an indication message carrying the second ESSID to the first base station, where the first base station and the first The wifi controller corresponding to the second ESSID establishes a communication link and a traffic distribution association.

在本实施例中，当第二 AP对应的第二 ESSID与第一 ESSID不相同时，说明第二 AP所属的 AC、 WAG或者路由器与第一 AP所属的 AC、 WAG或者路由器不相同，即 UE不在同一个 ESS内的 AP间移动，因此， UE需要向第一基站发送携带有第二 ESSID的指示消息，以供第一基站与第二 AP所属的 wifi AC、 WAG或者 wifi路由器建立通信链路和分流关联。 In this embodiment, when the second ESSID corresponding to the second AP is different from the first ESSID, the AC, the WAG, or the router to which the second AP belongs is different from the AC, WAG, or router to which the first AP belongs, that is, the UE. The UE does not move between the APs in the same ESS. Therefore, the UE needs to send an indication message carrying the second ESSID to the first base station, for the first base station and the second AP to belong to. The wifi AC, WAG or wifi router establishes the communication link and the offload association.

另外，可选地，当 UE在同一 ESS内移动时，当第一 AP的信号质量或负荷到达预设门限且 UE检测到的第二 AP的 BSSID时，也可以向第一基站报告该第二 AP的 BSSID, 以使得第一基站进行流量控制，例如：第一基站判断因为 AP的切换需要中断时间而减少向 wifi网络分流的业务量。 In addition, optionally, when the UE moves within the same ESS, when the signal quality or load of the first AP reaches the preset threshold and the BSSID of the second AP detected by the UE, the second base station may also report the second The BSSID of the AP is such that the first base station performs flow control. For example, the first base station determines that the traffic that is offloaded to the wifi network is reduced because the handover of the AP requires an interruption time.

需要说明的是， WLAN 组网方式包括 BSS、 ESS 和独立服务集 (Independent BSS; 简称： IBSS) 。 BSSID代表一个 BSS, 为 AP的 MAC 地址。 BSS的覆盖范围成为基本服务区（Basic Service Area; 简称： BSA) 。 ESSID代表一个 ESS, ESS范围内的多个 AP具有相同的 ESSID,以支持 STA 漫游，在同一个 ESS 中不同 BSS 间切换过程成为漫游。 wifi终端一般成为 STA,对于支持蜂窝网和 wifi的终端可以统称为 UE。其中， wifi路由器、 wifi AC和 WAG均属于 ESS。 It should be noted that the WLAN networking mode includes BSS, ESS, and Independent BSS (abbreviation: IBSS). The BSSID represents a BSS and is the MAC address of the AP. The coverage of BSS becomes the Basic Service Area (BSA). The ESSID represents an ESS. Multiple APs in the ESS range have the same ESSID to support STA roaming. The switching process between different BSSs in the same ESS becomes roaming. The wifi terminal generally becomes a STA, and the terminals supporting the cellular network and the wifi can be collectively referred to as a UE. Among them, wifi router, wifi AC and WAG belong to ESS.

更进一步的，在本发明的再一个实施例中，在上述各个方法所示实施例的基础上，该方法还可以包括： Further, in still another embodiment of the present invention, based on the embodiments shown in the foregoing methods, the method may further include:

该 UE接收第一基站发送的切换消息，该切换消息包括：该第二基站对应的 RRC连接配置信息；其中，该第二基站对应的 RRC连接配置信息为该第一基站与该第二基站交互获取的信息，该第二基站对应的 wifi分流配置信息和切换策略； Receiving, by the UE, a handover message sent by the first base station, where the handover message includes: RRC connection configuration information corresponding to the second base station, where the RRC connection configuration information corresponding to the second base station is that the first base station interacts with the second base station The obtained information, the wifi offload configuration information and the handover policy corresponding to the second base station;

该 UE根据该第二基站对应的 RRC连接配置信息，进行切换处理；该 UE按照该第二基站对应的 wifi分流配置信息，与通过该 WLAN协议发现的 AP进行通信，并在该 UE移动过程中，按照该第二基站对应的切换策略进行 AP切换处理。 The UE performs handover processing according to the RRC connection configuration information corresponding to the second base station; the UE communicates with the AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the second base station, and is in the UE moving process. And performing AP switching processing according to the switching policy corresponding to the second base station.

在本实施例中，对于 eNB分流的 wifi分流架构，以同一个 ESS或 BSS 覆盖范围和不同 eNB的覆盖区域有重合（overlap) ，且 UE从第一基站切换到第二基站为例，该 UE接收第一基站发送的切换消息之前， UE根据测量配置向第一基站发送 UE对应的测量报告，该 UE对应的测量报告包含第一基站和与该第一基站的相邻基站的测量报告，以及 wifi测量报告等信息。另外，该 UE对应的测量报告还包括： UE当前的 wifi连接状态信息，例如： UE是否存在 wifi连接， UE所关联的当前 wifi AP的 BSSID,所属的 ESS的 ESSID 等信息。第一基站判断需要把 UE切换到第二基站时，向第二基站发送切换请求消息，该切换请求消息包括： UE在第一基站的 wifi分流配置、 UE当前 wifi 连接状态以及切换策略等。同时，第一基站可以上述的 wifi分流配置中指示第二基站和第一 AP进行 wifi分流配置或者和其他 AP进行 wifi分流配置。 In this embodiment, for the wifi offloading architecture of the eNB, the coverage of the same ESS or BSS coverage and the coverage area of different eNBs overlaps, and the UE switches from the first base station to the second base station as an example, the UE Before receiving the handover message sent by the first base station, the UE sends a measurement report corresponding to the UE to the first base station according to the measurement configuration, where the measurement report corresponding to the UE includes a measurement report of the first base station and a neighboring base station with the first base station, and Wifi measurement report and other information. In addition, the measurement report corresponding to the UE further includes: current wifi connection status information of the UE, for example, whether the UE has a wifi connection, a BSSID of the current wifi AP associated with the UE, and an ESSID of the ESS to which the UE belongs. When the first base station determines that the UE needs to be handed over to the second base station, it sends a handover request message to the second base station, where the handover request message includes: a WLAN offload configuration of the UE in the first base station, a current wifi connection state of the UE, and a handover policy. At the same time, the first base station may instruct the second base station and the first AP to perform wifi offload configuration or perform wifi offload configuration with other APs in the wifi offload configuration.

第二基站执行接纳控制，向第一基站发送切换响应消息，其包含第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，同时，第二基站可以和 UE在第一基站进行 wifi分流的 AP建立关联和通信链路，从而在基站切换时后，第二基站可以和第一 AP继续进行 wifi分流，或者与其他 AP 进行 wifi分流。另外，还需要说明的是，若第一 AP没有与 UE成功发送和接收的业务数据可以通过第一基站转发给第二基站，由第二基站转发给第二 AP, 或者直接转发给第二 AP。 The second base station performs admission control, and sends a handover response message to the first base station, where the RRC connection configuration information, the wifi offload configuration information, and the handover policy corresponding to the second base station are included, and the second base station can perform wifi with the UE at the first base station. The offloaded AP establishes an association and a communication link, so that after the base station switches, the second base station can continue to perform wifi offload with the first AP, or perform wifi offload with other APs. In addition, it should be noted that if the service data that the first AP does not successfully send and receive with the UE can be forwarded to the second base station by using the first base station, the second base station forwards the data to the second AP, or directly forwards to the second AP. .

在本实施例中，需要说明的是，对于 PGW分流的 wifi分流架构，基站指示 UE分别按照 LTE移动性管理机制在基站间切换和按照 WLAN协议的漫游机制进行 AP切换，两者的移动性相互独立。 In this embodiment, it is to be noted that, for the wifi offload architecture of the PGW offload, the base station instructs the UE to perform inter-base station handover according to the LTE mobility management mechanism and perform AP handover according to the roaming mechanism of the WLAN protocol, and the mobility of the two is mutually independent.

具体的，当基站切换时，第一基站不与第二基站交互，即 UE按照第一基站对应的 wif分流配置消息和切换策略执行相应的处理， UE当达到第二基站后，可以报告第二基站当前关联的 wifi信息，也可以不报告该信息。另外， UE可以通过 wifi AC、 WAG或者 wifi路由器当 ESS切换时，通知 PGW。当 UE在同一个 ESS内切换 AP时，可以不需要通知 PGW。 Specifically, when the base station is handed over, the first base station does not interact with the second base station, that is, the UE performs corresponding processing according to the wif offload configuration message and the handover policy corresponding to the first base station, and the UE may report the second after reaching the second base station. The wifi information currently associated with the base station may not be reported. In addition, the UE can notify the PGW when the ESS is switched through the wifi AC, WAG or wifi router. When the UE switches the AP within the same ESS, it may not need to notify the PGW.

更进一步的，在本发明的另一个实施例中，在上述图 3所示实施例的而基础上，该方法还可以包括： Further, in another embodiment of the present invention, based on the foregoing embodiment shown in FIG. 3, the method may further include:

该 UE当判断出需要切换回 LTE或者需要 LTE进行分流时，向该第一基站发送 RRC连接建立请求； When the UE determines that it needs to switch back to LTE or needs LTE to perform offloading, the UE sends an RRC connection establishment request to the first base station;

该 UE接收该第一基站根据该 RRC连接建立请求所返回的 RRC连接建立消息，该 RRC连接建立消息包括该第一基站对应的 wifi分流配置信息和切换策略。 The UE receives the RRC connection setup message returned by the first base station according to the RRC connection setup request, and the RRC connection setup message includes the wifi offload configuration information and the handover policy corresponding to the first base station.

本实施例是以 PGW分流的 wifi分流架构为例，第一基站在 UE处于 RRC 连接状态（RRC_CONNECTED)为 UE配置 wifi分流时，指示 UE进入 RRC 空闲（RRC_IDLE) 状态后在 wifi的业务可以继续进行。 In this embodiment, the wifi offload architecture of the PGW offloading is taken as an example. When the UE is in the RRC connection state (RRC_CONNECTED), the first base station instructs the UE to enter the RRC idle state (RRC_IDLE) state, and the wifi service can continue. .

另外， UE在 LTE的业务已经完成，或者第一基站的负荷较高等因素需要把 UE在 LTE 的业务迁移到 wifi, 第一基站触发 RRC连接释放（RRC Connection Release) 过程使 UE在 LTE进入 RRC空闲状态。贝 !J UE在 RRC 空闲状态按照 WLAN协议的漫游机制进行 AP切换，例如：执行 FT切换过程。另外，随着 UE的移动，第二 AP负荷较大或者信号质量较差或者无 wifi 覆盖， UE需要切换回 LTE或者需要 LTE进行分流，则向第一基站发起 RRC 连接建立请求，该 RRC连接建立请求包括：原因值，该原因值为 wifi分流请求和当前 wifi分流连接状态。可选地，该 RRC连接建立请求还包括：测量报告，该测量报告包括：所推荐的 AP列表及其测量信息，例如： RSSI、负荷等信息。 In addition, the UE needs to complete the service in LTE, or the load of the first base station is high. To migrate the UE's LTE service to wifi, the first base station triggers an RRC Connection Release procedure to cause the UE to enter the RRC idle state on the LTE. In the RRC idle state, the AP UE performs AP handover according to the roaming mechanism of the WLAN protocol, for example: performing an FT handover procedure. In addition, as the UE moves, the second AP is heavily loaded, or the signal quality is poor, or there is no wifi coverage, the UE needs to switch back to LTE or needs LTE to perform offloading, and then initiates an RRC connection setup request to the first base station, and the RRC connection is established. The request includes: a cause value, the cause value is a wifi offload request and a current wifi offload connection state. Optionally, the RRC connection setup request further includes: a measurement report, where the measurement report includes: the recommended AP list and its measurement information, such as: RSSI, load, and the like.

第一基站响应 UE的 RRC连接建立请求，向 UE发送 RRC连接建立消息，该 RRC连接建立消息包括：第一基站对应的 wifi分流配置信息和切换策略， UE连接建立完成。 UE进入 RRC_CONNECTED状态，按照当前接收到的第 RRC连接建立消息中的第一基站对应的 wifi 分流配置信息和切换策略进行 wifi分流和移动性管理过程。 The first base station sends an RRC connection setup message to the UE in response to the RRC connection setup request of the UE, where the RRC connection setup message includes: the wifi offload configuration information and the handover policy corresponding to the first base station, and the UE connection establishment is completed. The UE enters the RRC_CONNECTED state, and performs the wifi offloading and mobility management process according to the wifi offload configuration information and the handover policy corresponding to the first base station in the currently received RRC connection setup message.

更进一步的，在本发明的又一个实施例中，在上述图 4所示实施例的而基础上，该方法还可以包括： Further, in still another embodiment of the present invention, based on the foregoing embodiment shown in FIG. 4, the method may further include:

该 UE向该第一基站返回 wifi分流配置拒绝消息，该 wifi分流配置拒绝消息包括原因值； The UE returns a wifi offload configuration reject message to the first base station, where the wifi offload configuration reject message includes a cause value;

其中，该原因值为如下任一种：该第一基站对应的 wifi分流配置信息为该 UE不接受访问公共陆地移动网络的 eNB所发送的 wifi分流配置信息，该 UE已经接入或者准备接入除该第一基站对应的 wifi分流配置信息中的 AP列表之外的其他 AP, 该 UE正在进行的 wifi分流卸载但该第一基站对应的 wifi 分流配置信息中的当前服务的 QoS/QoE小于预设阈值且识别出该第一基站对应的 wifi分流配置信息中增加了新的分流业务标识，该 UE从 ANDSF获取的切换策略或者本地预存的切换策略与该第一基站对应的 wifi分流配置信息中的切换策略不相同，该 UE处于紧急呼叫状态，该 UE正在接收 MBMS业务，和该 UE的应用层识别当前业务在预计时间内终止。 The reason value is any one of the following: the wifi offload configuration information corresponding to the first base station is the wifi offload configuration information sent by the eNB that the UE does not accept access to the public land mobile network, and the UE has accessed or is ready to access. The QoS/QoE of the current service in the wifi offloading configuration information corresponding to the first base station is less than the pre-determination of the AP except the AP list in the wifi offload configuration information corresponding to the first base station. Setting a threshold and identifying that the WLAN offload configuration information corresponding to the first base station is added with a new offload service identifier, and the handover policy obtained by the UE from the ANDSF or the locally pre-stored handover policy and the wifi offload configuration information corresponding to the first base station are The handover policy is different, the UE is in an emergency call state, the UE is receiving the MBMS service, and the application layer of the UE identifies that the current service is terminated within the expected time.

图 5为本发明切换处理方法的还一个实施例的流程图，如图 5所示，该方法包括： FIG. 5 is a flowchart of still another embodiment of a handover processing method according to the present invention. As shown in FIG. 5, the method includes:

步骤 301、第一基站向 wifi控制器或者 AP发送 wifi分流请求，并接收该 wifi控制器或者 AP返回的 wifi分流响应，以与该 wifi控制器或者 AP建立通信链路和分流关联。 Step 301: The first base station sends a wifi offload request to the wifi controller or the AP, and receives The wifi controller or the wifi shunt response returned by the AP to establish a communication link and a shunt association with the wifi controller or AP.

步骤 302、第一基站根据该 wifi分流响应，向 UE发送该第一基站对应的切换策略和 wifi分流配置信息，以供该 UE根据该第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在该 UE移动时，该 UE根据该第一基站对应的切换策略，获取第二 AP, 与该第一 AP去关联，与该第二 AP进行通信，以实现 AP的切换。 Step 302: The first base station sends, according to the wifi offload response, the handover policy and the wifi offload configuration information corresponding to the first base station, to the UE, according to the wifi offload configuration information corresponding to the first base station, and the discovery by using the WLAN protocol. The first AP performs communication, and when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP to implement the AP. Switching.

其中，该切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP 切换。 The handover policy is used to indicate that the UE performs AP handover according to a roaming mechanism of the WLAN protocol.

在本实施例中，第一基站向 wifi控制器，例如： wifi AC、 WAG或者 wifi 路由器发送 wifi分流请求消息，该 wifi分流请求消息可以包括：该第一基站的 MAC地址， GPRS传输协议（GPRS Tunnel Protocol; 简称： GTP)端节点标识（Terminal Endpoint Identifier; 简称： TEID) ，所需分流的无线承载标识（Radio Bearer ID;简称： RB ID)，所需分流的无线承载的服务质量（Quality of Service;简称： QoS )信息、 wifi AC、 WAG或者 wifi路由器对应的 ESSID。 In this embodiment, the first base station sends a wifi offload request message to the wifi controller, for example, a wifi AC, a WAG, or a wifi router, where the wifi offload request message may include: a MAC address of the first base station, and a GPRS transmission protocol (GPRS) Tunnel Protocol; abbreviated as: GTP) Terminal Endpoint Identifier (TEID), Radio Bearer ID (RB ID) required for offloading, Quality of Service of the required offloaded radio bearer (Quality of Service; referred to as: QoS) information, wifi ID corresponding to wifi AC, WAG or wifi router.

另外， wifi AC、 WAG或者 wifi路由器接收该 wifi分流请求消息，并执行接纳控制，选定可以接受哪些 RB ID进行关联，建立 RB ID和 wifi接入类别标识（Access Category ID; 简称： AC ID) 关联关系，向该第一基站发送 wifi分流响应消息，其中，该 wifi分流响应消息可以包括： wifi AC、 WAG 或者 wifi路由器对应的 ESSID, GTP TEID, RB ID, AC ID等信息。 In addition, the wifi AC, WAG or wifi router receives the wifi offload request message, and performs admission control, selects which RB IDs can be accepted for association, and establishes an RB ID and a wifi access category identifier (Access Category ID; AC ID for short). The association relationship sends a wifi offload response message to the first base station, where the wifi offload response message may include: ESSID, GTP TEID, RB ID, AC ID and the like corresponding to the wifi AC, WAG or wifi router.

在本实施例中，第一基站向 UE发送该第一基站对应的 wifi分流配置信息，可选地，该 wifi分流配置信息包括： wifi AC、 WAG或者 wifi路由器对应的 ESSID (即第一 ESSID)，所分流业务的 RB ID和其对应的 AC ID, QoS 信息。 In this embodiment, the first base station sends the wifi offload configuration information corresponding to the first base station to the UE. Optionally, the wifi offload configuration information includes: wifi AC, WAG, or ESSID corresponding to the wifi router (ie, the first ESSID) , the RB ID of the offloaded service and its corresponding AC ID, QoS information.

另外， UE可以执行上述各个实施例所示的方法，其实现原理相类似，此处不再赘述。 In addition, the UE may perform the methods shown in the foregoing embodiments, and the implementation principles thereof are similar, and details are not described herein again.

在本实施例中，第一基站向 wifi控制器或者 AP发送 wifi分流请求，并接收 wifi控制器或者 AP返回的 wifi分流响应，与 wifi控制器或者 AP建立通信链路和分流关联，另外，第一基站根据该 wifi分流响应，向 UE发送第一基站对应的 wifi分流配置信息和切换策略，以供 UE根据第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在 UE 移动时，根据第一基站对应的切换策略，进行 AP切换处理，由于切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换，即 UE移动过程中只需要根据切换策略实现 AP的切换，因此，有效地解决了现有技术中 UE 必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题，从而有效地提高了切换性能。 In this embodiment, the first base station sends a wifi offload request to the wifi controller or the AP, and receives a wifi shunt response returned by the wifi controller or the AP, and establishes a communication link and a shunt association with the wifi controller or the AP, and The base station sends the wifi offload configuration information and the handover policy corresponding to the first base station to the UE according to the wifi offload response, so that the UE communicates with the first AP discovered by the WLAN protocol according to the wifi offload configuration information corresponding to the first base station. And performing the AP handover process according to the handover policy corresponding to the first base station when the UE moves, because the handover policy is used to indicate that the UE performs the AP handover according to the roaming mechanism of the WLAN protocol, that is, the AP only needs to implement the AP according to the handover policy. Switching, therefore, effectively solves the problem that the UE must perform the AP handover according to the eNB indication, and the signaling interaction between the AP and the eNB and the UE is more, so that there is a problem of large handover delay and signaling overhead. Thereby effectively improving the switching performance.

图 6为本发明切换处理方法的再一个实施例的流程图，在上述图 5所示实施例的基础上，如图 6所示，步骤 302之后，该方法还可以包括： Figure 6 is a flowchart of still another embodiment of the handover processing method of the present invention. On the basis of the foregoing embodiment shown in Figure 5, as shown in Figure 6, after step 302, the method may further include:

步骤 303、第一基站接收该 UE发送的携带有第二 ESSID的指示消息，该指示消息为该 UE在检测到根据该第一基站对应的切换策略获取的第二 AP 对应的第二 ESSID与该第一基站对应的 wifi分流配置信息中的第一 ESSID不相同时向该第一基站发送的指示消息。 Step 303: The first base station receives an indication message that is sent by the UE and carries a second ESSID, where the indication message is that the second ESSID corresponding to the second AP that is acquired by the UE according to the handover policy corresponding to the first base station is An indication message sent to the first base station when the first ESSID in the wifi offload configuration information corresponding to the first base station is different.

步骤 304、第一基站与该第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 Step 304: The first base station establishes a communication link and a traffic association with the wifi controller corresponding to the second ESSID.

进一步的，在本发明的另一个实施例中，在上述图 5所示实施例的基础上，步骤 302之后，该方法还可以包括： Further, in another embodiment of the present invention, based on the foregoing embodiment shown in FIG. 5, after the step 302, the method may further include:

该第一基站接收该 UE上报的 BSSID, 该 BSSID为该 UE在与根据该第一基站对应的切换策略获取的第二 AP 通信后上报的该第二 AP 对应的 BSSID; The first base station receives the BSSID that is reported by the UE, and the BSSID is a BSSID corresponding to the second AP that is reported by the UE after being communicated with the second AP acquired by the handover policy corresponding to the first base station;

该第一基站与该第二 AP建立通信链路和分流关联。 The first base station establishes a communication link and a traffic association with the second AP.

更进一步的，在本发明的又一个实施例中，在上述图 5所示实施例的基础上，该方法还可以包括： Further, in still another embodiment of the present invention, on the basis of the foregoing embodiment shown in FIG. 5, the method may further include:

该第一基站接收该 UE上报的 wifi空闲状态信息，并根据该 wifi空闲状态信息，停止向与该第一基站建立通信链路和分流关联的 wifi控制器发送 wifi 分流数据。 Receiving, by the first base station, the wifi idle state information reported by the UE, and according to the wifi idle state The state information stops transmitting wifi offload data to the wifi controller associated with establishing the communication link and the offload with the first base station.

可选地，该方法还可以进一步包括： Optionally, the method may further include:

该第一基站向第二基站发送切换请求消息，该切换请求消息包括：该第一基站对应的 wifi分流配置信息，以指示该第二基站根据该第一基站对应的 wifi分流配置信息，与该第一 AP或者其他 AP进行 wifi分流配置处理；其中，该其他 AP是指与该第一基站建立通信链路和分流关联的 wifi控制器下的除该第一 AP之外的其他 AP; The first base station sends a handover request message to the second base station, where the handover request message includes: the wifi offload configuration information corresponding to the first base station, to indicate that the second base station according to the wifi offload configuration information corresponding to the first base station, and the The first AP or other AP performs wifi offload configuration processing; wherein the other AP refers to an AP other than the first AP under the wifi controller associated with the first base station to establish a communication link and a traffic offload;

该第一基站接收该第二基站返回的切换响应消息，该切换响应消息包括该第二基站对应的 RRC连接配置信息； Receiving, by the first base station, a handover response message that is returned by the second base station, where the handover response message includes RRC connection configuration information corresponding to the second base station;

该第一基站发送切换消息给该 UE,该切换消息包括第二基站对应的 RRC 连接配置信息、 wifi分流配置信息和切换策略，以供该 UE根据该第二基站对应的 RRC连接配置信息，进行切换处理，按照该第二基站对应的 wifi分流配置信息，与通过该 WLAN协议发现的 AP进行通信，并在该 UE移动过程中，按照该第二基站对应的切换策略进行 AP切换处理。 The first base station sends a handover message to the UE, where the handover message includes the RRC connection configuration information, the wifi offload configuration information, and the handover policy corresponding to the second base station, where the UE performs the RRC connection configuration information corresponding to the second base station. The handover process is performed according to the wifi offload configuration information corresponding to the second base station, and communicates with the AP discovered by the WLAN protocol, and performs AP handover processing according to the handover policy corresponding to the second base station during the UE mobility.

图 7为本发明切换处理装置的一个实施例的结构示意图，如图 7该，该装置包括：收发模块 11、通信模块 12和切换处理模块 13; 其中，收发模块 11 用于接收第一基站发送的该第一基站对应的切换策略和 wifi分流配置信息；其中，该切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP 切换；通信模块 12用于根据该第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信；切换处理模块 13用于在该装置移动时，根据该第一基站对应的切换策略，获取第二 AP, 与该第一 AP去关联，与该第二 AP进行通信，以实现 AP的切换。 FIG. 7 is a schematic structural diagram of an embodiment of a handover processing apparatus according to the present invention. As shown in FIG. 7, the apparatus includes: a transceiver module 11, a communication module 12, and a handover processing module 13; wherein, the transceiver module 11 is configured to receive the first base station to send The first base station corresponding to the handover policy and the wifi offload configuration information; wherein the handover policy is used to indicate that the UE performs the AP handover according to the roaming mechanism of the WLAN protocol; the communication module 12 is configured to configure the wifi offload corresponding to the first base station The information is communicated with the first AP that is discovered by using the WLAN protocol. The handover processing module 13 is configured to acquire, according to the handover policy corresponding to the first base station, the second AP, to be associated with the first AP, and The second AP communicates to implement handover of the AP.

本实施例的装置具体可以为 UE,并可以执行图 3所示方法实施例的技术方案，其实现原理相类似，此处不再赘述。 The device in this embodiment may be a UE, and may implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principles thereof are similar, and details are not described herein again.

在本实施例中， UE接收第一基站发送的该第一基站对应的切换策略和 wifi分离配置信息，另外， UE根据第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，在 UE移动时， UE根据第一基站对应的切换策略，获取第二 AP, 与第一 AP去关联，并与第二 AP进行通信，以实现 AP切换，由于切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换，即 UE移动过程中只需要根据切换策略实现 AP的切换，因此，有效地解决了现有技术中 UE必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题，从而有效地提高了切换性能。 In this embodiment, the UE receives the handover policy and the wifi separation configuration information corresponding to the first base station that is sent by the first base station, and the UE, according to the wifi offload configuration information corresponding to the first base station, and the first AP that is discovered through the WLAN protocol. Communicating, when the UE moves, the UE acquires the second AP according to the handover policy corresponding to the first base station, associates with the first AP, and communicates with the second AP to implement AP handover, because the handover policy is used to indicate the UE roaming mechanism according to WLAN protocol The AP is switched, that is, the AP is required to perform the handover of the AP according to the handover policy. Therefore, the signaling interaction between the AP and the eNB and the UE is caused by the UE in the prior art. There are many, so there is a large problem of handover delay and signaling overhead, thereby effectively improving handover performance.

图 8为本发明切换处理装置的另一个实施例的结构示意图，在上述图 7 所示实施例的基础上，如图 8所示，该收发模块 11还用于向该第一基站返回 wifi分流配置拒绝消息，该 wifi分流配置拒绝消息包括原因值； FIG. 8 is a schematic structural diagram of another embodiment of a handover processing apparatus according to the present invention. On the basis of the foregoing embodiment shown in FIG. 7, the transceiver module 11 is further configured to return a WiFi shunt to the first base station. Configuring a reject message, the wifi offload configuration reject message includes a cause value;

优选地，在该第一基站对应的 wifi分流配置信息中包括第一 ESSID时，该装置还包括：检测模块 14用于检测该第二 AP对应的第二 ESSID与该第一 ESSID是否相同；该收发模块 11用于在该检测模块 14检测到该第二 ESSID 与该第一 ESSID不相同时，向该第一基站发送携带有该第二 ESSID的指示消息，以供该第一基站与该第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 Preferably, when the first ESSID is included in the wifi offload configuration information corresponding to the first base station, the apparatus further includes: the detecting module 14 is configured to detect whether the second ESSID corresponding to the second AP is the same as the first ESSID; The transceiver module 11 is configured to: when the detecting module 14 detects that the second ESSID is different from the first ESSID, send an indication message carrying the second ESSID to the first base station, where the first base station and the first base station The wifi controller corresponding to the second ESSID establishes a communication link and a traffic distribution association.

优选地，该通信模块 12还用于与该第二 AP进行通信；则该收发模块 11 用于向该第一基站上报该第二 AP的 BSSID, 以供该第一基站根据该 BSSID, 与该第二 AP建立通信链路和分流关联 Preferably, the communication module 12 is further configured to communicate with the second AP; the transceiver module 11 is configured to report the BSSID of the second AP to the first base station, according to the BSSID, and the first base station The second AP establishes a communication link and a traffic association

进一步的，在本发明的又一个实施例中，在上述图 7所示实施例的基础上，该收发模块 11还用于在该装置在移动过程中，若根据该切换策略，没有获取该第二 AP, 且与该第一 AP去关联，则向该第一基站上报 wifi空闲状态信息，以供该第一基站根据该 wifi空闲状态信息，停止向与该第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。可选地，该收发模块 11还用于接收第一基站发送的切换消息，该切换消息包括：该第二基站对应的 RRC 连接配置信息；其中，该第二基站对应的 RRC连接配置信息为该第一基站与该第二基站交互获取的信息，该第二基站对应的 wifi分流配置信息和切换策略；该切换处理模块 13还用于根据该第二基站对应的 RRC连接配置信息，进行切换处理；该通信模块 12还用于按照该第二基站对应的 wifi分流配置信息，与通过该 WLAN协议发现的 AP进行通信；该切换处理模块 13还用于在该装置移动过程中，按照该第二基站对应的切换策略进行 AP切换处理。 Further, in still another embodiment of the present invention, on the basis of the foregoing embodiment shown in FIG. 7, the transceiver module 11 is further configured to: when the device is in the process of moving, if the switching policy is not obtained, And the second AP is associated with the first AP, and the wifi idle state information is reported to the first base station, so that the first base station stops establishing a communication link and the offload with the first base station according to the wifi idle state information. The associated wifi controller or AP sends wifi offload data. Optionally, the transceiver module 11 is further configured to receive a handover message sent by the first base station, where the handover message includes: RRC connection configuration information corresponding to the second base station, where the RRC connection configuration information corresponding to the second base station is The information obtained by the first base station and the second base station, the wifi split configuration information and the handover policy corresponding to the second base station; the handover processing module 13 is further configured to perform handover processing according to the RRC connection configuration information corresponding to the second base station. The communication module 12 is further configured to communicate with the AP discovered by the WLAN protocol according to the wifi offload configuration information corresponding to the second base station; the handover processing module 13 is further configured to follow the second during the moving of the device. The handover policy corresponding to the base station performs AP handover processing.

进一步的，在本发明的还一个实施例中，在上述图 7所述实施例的基础上，该收发模块 11还用于当判断出需要切换回 LTE或者需要 LTE进行分流时，向该第一基站发送 RRC连接建立请求；该收发模块 11还用于接收该第一基站根据该 RRC连接建立请求所返回的 RRC连接建立消息，该 RRC连接建立消息包括该第一基站对应的 wifi分流配置信息和切换策略。 Further, in still another embodiment of the present invention, the transceiver module 11 is further configured to: when it is determined that the handover needs to be switched back to the LTE or the LTE is required to be offloaded, the first The base station sends an RRC connection setup request; the transceiver module 11 is further configured to receive an RRC connection setup message that is returned by the first base station according to the RRC connection setup request, where the RRC connection setup message includes the wifi offload configuration information corresponding to the first base station, Switch strategy.

图 9为本发明切换处理装置的再一个实施例的结构示意图，如图 9所示，该装置包括：发送模块 21和接收模块 22; 其中，发送模块 21用于向 wifi控制器或者 AP发送 wifi分流请求；接收模块 22用于接收该 wifi控制器或者 AP返回的 wifi分流响应，以与该 wifi控制器或者 AP建立通信链路和分流关联；该发送模块 21还用于根据该 wifi分流响应，向 UE发送该第一基站对应的切换策略和 wifi分流配置信息，以供该 UE根据该第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在该 UE移动时，该 UE根据该第一基站对应的切换策略，获取第二 AP, 与该第一 AP去关联，与该第二 AP进行通信，以实现 AP的切换；其中，该切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换。 FIG. 9 is a schematic structural diagram of still another embodiment of a handover processing apparatus according to the present invention. As shown in FIG. 9, the apparatus includes: a sending module 21 and a receiving module 22; wherein, the sending module 21 is configured to send a wifi to a wifi controller or an AP. The receiving module 22 is configured to receive a wifi shunt response returned by the wifi controller or the AP to establish a communication link and a shunt association with the wifi controller or the AP; the sending module 21 is further configured to respond according to the wifi shunt response. Transmitting the handover policy and the wifi offload configuration information corresponding to the first base station to the UE, where the UE communicates with the first AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the first base station, and moves in the UE The UE obtains the second AP according to the handover policy corresponding to the first base station, and is associated with the first AP, and communicates with the second AP to implement the handover of the AP. The handover policy is used to indicate the The UE performs AP handover according to the roaming mechanism of the WLAN protocol.

本实施例的装置可以具体为第一基站，并可以执行图 5所示实施例的方法，其实现原理相类似，此处不再赘述。 The device in this embodiment may be specifically the first base station, and may perform the method in the embodiment shown in FIG. 5, and the implementation principles thereof are similar, and details are not described herein again.

在本实施例中，第一基站向 wifi控制器或者 AP发送 wifi分流请求，并接收 wifi控制器或者 AP返回的 wifi分流响应，与 wifi控制器或者 AP建立通信链路和分流关联，另外，第一基站根据该 wifi分流响应，向 UE发送第一基站对应的 wifi分流配置信息和切换策略，以供 UE根据第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在 UE 移动时，根据第一基站对应的切换策略，进行 AP切换处理，由于切换策略用于指示该 UE按照 WLAN协议的漫游机制进行 AP切换，即 UE移动过程中只需要根据切换策略实现 AP的切换，因此，有效地解决了现有技术中 UE 必须根据 eNB指示进行 AP切换而导致 AP和 eNB、 UE之间信令交互较多，从而存在较大的切换时延和信令开销问题，从而有效地提高了切换性能。 In this embodiment, the first base station sends a wifi offload request to the wifi controller or the AP, and receives a wifi shunt response returned by the wifi controller or the AP, and establishes a communication link and a shunt association with the wifi controller or the AP, and The base station sends the wifi offload configuration information and the handover policy corresponding to the first base station to the UE according to the wifi offload response, so that the UE communicates with the first AP discovered by the WLAN protocol according to the wifi offload configuration information corresponding to the first base station. And at the UE When moving, the AP switching process is performed according to the handover policy corresponding to the first base station, and the handover policy is used to indicate that the UE performs the AP handover according to the roaming mechanism of the WLAN protocol, that is, the UE only needs to implement the handover of the AP according to the handover policy. Therefore, the problem that the UE must perform the AP handover according to the eNB indication, and the signaling interaction between the AP and the eNB and the UE is more, so that there is a large handover delay and signaling overhead problem, thereby effectively solving the problem. Improved switching performance.

图 10为本发明切换处理装置的另一个实施例的结构示意图，在上述图 9 所示实施例的基础上，如图 10所示，该接收模块 22还用于接收该 UE发送的携带有第二 ESSID的指示消息，该指示消息为该 UE在检测到根据该装置对应的切换策略获取的第二 AP对应的第二 ESSID与该装置对应的 wifi分流配置信息中的第一 ESSID不相同时向该装置发送的指示消息。 FIG. 10 is a schematic structural diagram of another embodiment of a handover processing apparatus according to the present invention. On the basis of the foregoing embodiment shown in FIG. 9, as shown in FIG. 10, the receiving module 22 is further configured to receive a carried by the UE. An indication message of the second ESSID, where the indication message is that the second ESSID corresponding to the second AP acquired by the UE according to the handover policy corresponding to the device is different from the first ESSID in the wifi offload configuration information corresponding to the device An indication message sent by the device.

则该装置还包括：建立模块 23用于与该第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 The device further includes: an establishing module 23 configured to establish a communication link and a traffic association with the wifi controller corresponding to the second ESSID.

进一步的，在本发明的又一个实施例中，在上述图 9所示实施例的基础上，该接收模块 22还用于接收该 UE上报的 BSSID, 该 BSSID为该 UE在与根据该第一基站对应的切换策略获取的第二 AP通信后上报的该第二 AP对应的 BSSID。则该装置还包括：建立模块，用于与该第二 AP建立通信链路和分流关联。 Further, in a further embodiment of the present invention, on the basis of the foregoing embodiment shown in FIG. 9, the receiving module 22 is further configured to receive a BSSID reported by the UE, where the BSSID is that the UE is in accordance with the first The BSSID corresponding to the second AP reported by the second AP after the second AP is obtained by the handover policy of the base station. The device further includes: an establishing module, configured to establish a communication link and a traffic association with the second AP.

更进一步的，在本发明的还一个实施例中，在上述图 9所示实施例的基础上，该接收模块 22还用于接收该 UE上报的 wifi空闲状态信息，并根据该 wifi空闲状态信息，停止向与该第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 Further, in still another embodiment of the present invention, on the basis of the foregoing embodiment shown in FIG. 9, the receiving module 22 is further configured to receive the wifi idle state information reported by the UE, and according to the wifi idle state information. Stop sending wifi offload data to the wifi controller or AP associated with the first base station to establish a communication link and offload.

可选地，该发送模块 21还用于向第二基站发送切换请求消息，该切换请求消息包括：该装置对应的 wifi分流配置信息，以指示该第二基站根据该装置对应的 wifi分流配置信息，与该第一 AP或者其他 AP进行 wifi分流配置处理；其中，该其他 AP是指与该装置建立通信链路和分流关联的 wifi控制器下的除该第一 AP之外的其他 AP; 该接收模块 22还用于接收该第二基站返回的切换响应消息，该切换响应消息包括该第二基站对应的 RRC连接配置信息；该发送模块 21还用于发送切换消息给该 UE, 该切换消息包括第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，以供该 UE根据该第二基站对应的 RRC连接配置信息，进行切换处理，按照该第二基站对应的 wifi分流配置信息，与通过该 WLAN协议发现的 AP进行通信，并在该 UE移动过程中，按照该第二基站对应的切换策略进行 AP切换处理。 Optionally, the sending module 21 is further configured to send, to the second base station, a handover request message, where the handover request message includes: wifi offload configuration information corresponding to the device, to indicate that the second base station according to the wifi offload configuration information corresponding to the device And performing the wifi offloading configuration process with the first AP or other APs, where the other APs are other APs other than the first AP under the wifi controller associated with establishing the communication link and the offloading with the device; The receiving module 22 is further configured to receive a handover response message that is returned by the second base station, where the handover response message includes RRC connection configuration information corresponding to the second base station, and the sending module 21 is further configured to send a handover message to the UE, where the handover message is sent. The RRC connection configuration information corresponding to the second base station, the wifi offload configuration information, and the handover policy, for the UE to perform handover processing according to the RRC connection configuration information corresponding to the second base station, according to the second base station pair The wifi offload configuration information is communicated with the AP discovered by the WLAN protocol, and during the UE mobility, the AP handover process is performed according to the handover policy corresponding to the second base station.

本发明还提供了一种用户设备，包括：存储器，用于存储指令；处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如图 3或图 4所述的切换处理方法。其实现原理相类似，此处不再赘述。 The present invention also provides a user equipment, comprising: a memory for storing instructions; a processor coupled to the memory, the processor being configured to execute instructions stored in the memory, and the processor It is configured to perform the switching processing method as described in FIG. 3 or FIG. The implementation principle is similar and will not be described here.

本发明还提供了一种基站，包括：存储器，用于存储指令；处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如图 5或图 6所述的切换处理方法。其实现原理相类似，此处不再赘述。 The present invention also provides a base station, comprising: a memory for storing an instruction; a processor coupled to the memory, the processor configured to execute an instruction stored in the memory, and the processor is It is configured to perform the handover processing method as described in FIG. 5 or FIG. 6. The implementation principle is similar, and will not be described here.

本领域普通技术人员可以理解：实现上述各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，执行包括上述各方法实施例的步骤；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。 One of ordinary skill in the art will appreciate that all or a portion of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including 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、一种切换处理方法，其特征在于，包括： 1. A switching processing method, characterized by including:

UE接收第一基站发送的所述第一基站对应的切换策略和 wifi分流配置信息；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换； The UE receives the switching strategy and wifi offload configuration information corresponding to the first base station sent by the first base station; wherein the switching strategy is used to instruct the UE to perform AP switching according to the roaming mechanism of the WLAN protocol;

在所述 UE移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换。 When the UE moves, the UE obtains a second AP according to the switching policy corresponding to the first base station, disassociates from the first AP, and communicates with the second AP to implement AP switching.

2、根据权利要求 1所述的方法，其特征在于，所述第一基站对应的 wifi 分流配置信息中包括第一 ESSID, 则所述方法还包括： 2. The method according to claim 1, wherein the wifi offload configuration information corresponding to the first base station includes a first ESSID, then the method further includes:

所述 UE在检测到所述第二 AP对应的第二 ESSID与所述第一 ESSID不相同时，向所述第一基站发送携带有所述第二 ESSID的指示消息，以供所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 When the UE detects that the second ESSID corresponding to the second AP is different from the first ESSID, the UE sends an indication message carrying the second ESSID to the first base station for the first base station. The base station establishes a communication link and offload association with the wifi controller corresponding to the second ESSID.

3、根据权利要求 1所述的方法，其特征在于，还包括： 3. The method according to claim 1, further comprising:

所述 UE与所述第二 AP进行通信，向所述第一基站上报所述第二 AP的 BSSID, 以供所述第一基站根据所述 BSSID,与所述第二 AP建立通信链路和分流关联。 The UE communicates with the second AP, and reports the BSSID of the second AP to the first base station, so that the first base station can establish a communication link with the second AP based on the BSSID. Diversion association.

4、根据权利要求 1所述的方法，其特征在于，还包括： 4. The method according to claim 1, further comprising:

所述 UE在移动过程中，若根据所述切换策略，没有获取所述第二 AP, 且与所述第一 AP去关联，则向所述第一基站上报 wifi空闲状态信息，以供所述第一基站根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 During the movement of the UE, if the second AP is not acquired according to the handover policy and is disassociated from the first AP, the UE reports wifi idle status information to the first base station for the The first base station stops sending WiFi offload data to the WiFi controller or AP that has established a communication link and offload association with the first base station according to the WiFi idle status information.

5、根据权利要求 1至 4任一所述的方法，其特征在于，还包括：所述 UE接收第一基站发送的切换消息，所述切换消息包括：所述第二基站对应的 RRC连接配置信息；其中，所述第二基站对应的 RRC连接配置信息为所述第一基站与所述第二基站交互获取的信息，所述第二基站对应的 wifi分流配置信息和切换策略； 5. The method according to any one of claims 1 to 4, further comprising: the UE receiving a handover message sent by the first base station, the handover message including: the RRC connection configuration corresponding to the second base station Information; wherein, the RRC connection configuration information corresponding to the second base station is information obtained through interaction between the first base station and the second base station, and the wifi offload configuration information and switching strategy corresponding to the second base station;

所述 UE根据所述第二基站对应的 RRC连接配置信息，进行切换处理；所述 UE按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN 协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The UE performs handover processing according to the RRC connection configuration information corresponding to the second base station; The UE communicates with the AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the second base station, and during the movement of the UE, performs AP switching according to the switching strategy corresponding to the second base station deal with.

6、根据权利要求 1所述的方法，其特征在于，还包括： 6. The method according to claim 1, further comprising:

所述 UE当判断出需要切换回 LTE或者需要 LTE进行分流时，向所述第一基站发送 RRC连接建立请求； When the UE determines that it needs to switch back to LTE or needs LTE to offload, it sends an RRC connection establishment request to the first base station;

所述 UE接收所述第一基站根据所述 RRC连接建立请求所返回的 RRC 连接建立消息，所述 RRC连接建立消息包括所述第一基站对应的 wifi分流配置信息和切换策略。 The UE receives the RRC connection establishment message returned by the first base station according to the RRC connection establishment request, and the RRC connection establishment message includes the WiFi offload configuration information and switching strategy corresponding to the first base station.

7、根据权利要求 1所述的方法，其特征在于，还包括： 7. The method according to claim 1, further comprising:

所述 UE向所述第一基站返回 wifi分流配置拒绝消息，所述 wifi分流配置拒绝消息包括原因值； The UE returns a wifi offload configuration rejection message to the first base station, and the wifi offload configuration reject message includes a reason value;

其中，所述原因值为如下任一种：所述第一基站对应的 wifi分流配置信息为所述 UE不接受访问公共陆地移动网络的 eNB所发送的 wifi分流配置信息，所述 UE已经接入或者准备接入除所述第一基站对应的 wifi分流配置信息中的 AP列表之外的其他 AP, 所述 UE正在进行的 wifi分流卸载但所述第一基站对应的 wifi分流配置信息中的当前服务的 QoS/QoE小于预设阈值且识别出所述第一基站对应的 wifi分流配置信息中增加了新的分流业务标识，所述 UE从 ANDSF获取的切换策略或者本地预存的切换策略与所述第一基站对应的 wifi分流配置信息中的切换策略不相同，所述 UE处于紧急呼叫状态，所述 UE正在接收 MBMS业务，和所述 UE的应用层识别当前业务在预计时间内终止。 Wherein, the reason value is any one of the following: The wifi offload configuration information corresponding to the first base station is that the UE does not accept the wifi offload configuration information sent by the eNB accessing the public land mobile network, and the UE has accessed Or prepare to access other APs other than the AP list in the wifi offload configuration information corresponding to the first base station. The UE is performing wifi offload offloading but the current value in the wifi offload configuration information corresponding to the first base station is The QoS/QoE of the service is less than the preset threshold and it is recognized that a new offload service identifier is added to the wifi offload configuration information corresponding to the first base station, and the switching strategy obtained by the UE from ANDSF or the locally prestored switching strategy is consistent with the The switching strategies in the wifi offload configuration information corresponding to the first base station are different, the UE is in an emergency call state, the UE is receiving the MBMS service, and the application layer of the UE identifies that the current service is terminated within the expected time.

8、一种切换处理方法，其特征在于，包括： 8. A switching processing method, characterized by including:

第一基站向 wifi控制器或者 AP发送 wifi分流请求，并接收所述 wifi控制器或者 AP返回的 wifi分流响应，以与所述 wifi控制器或者 AP建立通信链路和分流关联； The first base station sends a wifi offload request to the wifi controller or AP, and receives the wifi offload response returned by the wifi controller or AP to establish a communication link and offload association with the wifi controller or AP;

所述第一基站根据所述 wifi分流响应，向 UE发送所述第一基站对应的切换策略和 wifi分流配置信息，以供所述 UE根据所述第一基站对应的 wifi 分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在所述 UE 移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换。 The first base station sends the switching strategy and wifi offload configuration information corresponding to the first base station to the UE according to the wifi offload response, so that the UE can communicate with the UE according to the wifi offload configuration information corresponding to the first base station. The first AP discovered by the WLAN protocol communicates, and when the UE moves, the UE obtains the second AP according to the switching strategy corresponding to the first base station, and communicates with the The first AP disassociates and communicates with the second AP to implement AP switching; wherein, the switching policy is used to instruct the UE to perform AP switching according to the roaming mechanism of the WLAN protocol.

9、根据权利要求 8所述的方法，其特征在于，还包括： 9. The method according to claim 8, further comprising:

所述第一基站接收所述 UE发送的携带有第二 ESSID的指示消息，所述指示消息为所述 UE在检测到根据所述第一基站对应的切换策略获取的第二 AP对应的第二 ESSID 与所述第一基站对应的 wifi分流配置信息中的第一 ESSID不相同时向所述第一基站发送的指示消息； The first base station receives an indication message carrying a second ESSID sent by the UE. The indication message is when the UE detects the second AP corresponding to the second AP obtained according to the handover policy corresponding to the first base station. An indication message sent to the first base station when the ESSID is different from the first ESSID in the wifi offload configuration information corresponding to the first base station;

所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 The first base station establishes a communication link and offload association with the wifi controller corresponding to the second ESSID.

10、根据权利要求 8所述的方法，其特征在于，还包括： 10. The method according to claim 8, further comprising:

所述第一基站接收所述 UE上报的 BSSID, 所述 BSSID为所述 UE在与根据所述第一基站对应的切换策略获取的第二 AP通信后上报的所述第二 AP 对应的 BSSID; The first base station receives the BSSID reported by the UE, where the BSSID is the BSSID corresponding to the second AP reported by the UE after communicating with the second AP obtained according to the handover policy corresponding to the first base station;

所述第一基站与所述第二 AP建立通信链路和分流关联。 The first base station establishes a communication link and offload association with the second AP.

11、根据权利要求 8所述的方法，其特征在于，还包括： 11. The method according to claim 8, further comprising:

所述第一基站接收所述 UE上报的 wifi空闲状态信息，并根据所述 wifi 空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 The first base station receives the wifi idle status information reported by the UE, and based on the wifi idle status information, stops sending wifi offload data to the wifi controller or AP that has established a communication link and offload association with the first base station. .

12、根据权利要求 8至 11任一所述的方法，其特征在于，还包括：所述第一基站向第二基站发送切换请求消息，所述切换请求消息包括：所述第一基站对应的 wifi分流配置信息，以指示所述第二基站根据所述第一基站对应的 wifi分流配置信息，与所述第一 AP或者其他 AP进行 wifi分流配置处理；其中，所述其他 AP是指与所述第一基站建立通信链路和分流关联的 wifi控制器下的除所述第一 AP之外的其他 AP; 12. The method according to any one of claims 8 to 11, further comprising: the first base station sending a handover request message to the second base station, the handover request message including: corresponding to the first base station wifi offload configuration information to instruct the second base station to perform wifi offload configuration processing with the first AP or other APs according to the wifi offload configuration information corresponding to the first base station; wherein, the other AP refers to the wifi offload configuration information with the first base station; The first base station establishes a communication link and offloads other APs under the associated wifi controller except the first AP;

所述第一基站发送切换消息给所述 UE,所述切换消息包括第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，以供所述 UE根据所述第二基站对应的 RRC连接配置信息，进行切换处理，按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The first base station sends a switching message to the UE. The switching message includes the RRC connection configuration information corresponding to the second base station, the wifi offload configuration information and the switching strategy, so that the UE can use the RRC connection configuration information corresponding to the second base station according to the RRC configuration information corresponding to the second base station. Connect the configuration information, perform handover processing, and perform the processing according to the second base station According to the corresponding wifi offload configuration information, communicate with the AP discovered through the WLAN protocol, and during the movement of the UE, perform AP switching processing according to the switching policy corresponding to the second base station.

13、一种切换处理装置，其特征在于，包括： 13. A switching processing device, characterized in that it includes:

收发模块，用于接收第一基站发送的所述第一基站对应的切换策略和 wifi分流配置信息；其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换； A transceiver module, configured to receive the switching strategy and wifi offload configuration information corresponding to the first base station sent by the first base station; wherein the switching strategy is used to instruct the UE to perform AP switching according to the roaming mechanism of the WLAN protocol;

切换处理模块，用于在所述装置移动时，根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换。 A handover processing module, configured to obtain a second AP according to the handover strategy corresponding to the first base station when the device moves, disassociate with the first AP, and communicate with the second AP to implement the AP. switch.

14、根据权利要求 13 所述的装置，其特征在于，所述第一基站对应的 wifi分流配置信息中包括第一 ESSID, 则所述装置还包括： 14. The device according to claim 13, wherein the wifi offload configuration information corresponding to the first base station includes a first ESSID, then the device further includes:

检测模块，用于检测所述第二 AP对应的第二 ESSID与所述第一 ESSID 是否相同； A detection module, configured to detect whether the second ESSID corresponding to the second AP is the same as the first ESSID;

所述收发模块，用于在所述检测模块检测到所述第二 ESSID与所述第一 ESSID不相同时，向所述第一基站发送携带有所述第二 ESSID的指示消息，以供所述第一基站与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 The transceiver module is configured to send an indication message carrying the second ESSID to the first base station when the detection module detects that the second ESSID is different from the first ESSID. The first base station establishes a communication link and offload association with the wifi controller corresponding to the second ESSID.

15、根据权利要求 13所述的装置，其特征在于，所述通信模块还用于与所述第二 AP进行通信； 15. The device according to claim 13, wherein the communication module is also used to communicate with the second AP;

则所述收发模块，用于向所述第一基站上报所述第二 AP的 BSSID, 以供所述第一基站根据所述 BSSID, 与所述第二 AP建立通信链路和分流关联。 The transceiver module is configured to report the BSSID of the second AP to the first base station, so that the first base station can establish a communication link and offload association with the second AP based on the BSSID.

16、根据权利要求 13所述的装置，其特征在于，所述收发模块还用于在所述装置在移动过程中，若根据所述切换策略，没有获取所述第二 AP, 且与所述第一 AP去关联，则向所述第一基站上报 wifi空闲状态信息，以供所述第一基站根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi分流数据。 16. The device according to claim 13, wherein the transceiver module is further configured to: when the device is moving, if the second AP is not acquired according to the switching strategy, and the The first AP disassociates and reports wifi idle status information to the first base station, so that the first base station stops establishing communication links and offloading associations with the first base station based on the wifi idle status information. The wifi controller or AP sends wifi offload data.

17、根据权利要求 13至 16任一所述的装置，其特征在于，所述收发模块还用于接收第一基站发送的切换消息，所述切换消息包括：所述第二基站对应的 RRC连接配置信息；其中，所述第二基站对应的 RRC连接配置信息为所述第一基站与所述第二基站交互获取的信息，所述第二基站对应的 wifi 分流配置信息和切换策略； 17. The device according to any one of claims 13 to 16, characterized in that the transceiver module is also used to receive a switching message sent by the first base station, the switching message includes: the second base station Corresponding RRC connection configuration information; wherein, the RRC connection configuration information corresponding to the second base station is information obtained through interaction between the first base station and the second base station, and the wifi offload configuration information and handover corresponding to the second base station Strategy;

所述切换处理模块还用于根据所述第二基站对应的 RRC连接配置信息，进行切换处理； The handover processing module is also configured to perform handover processing according to the RRC connection configuration information corresponding to the second base station;

所述通信模块还用于按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信； The communication module is also used to communicate with the AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the second base station;

所述切换处理模块还用于在所述装置移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The handover processing module is also configured to perform AP handover processing according to the handover strategy corresponding to the second base station during the movement of the device.

18、根据权利要求 13所述的装置，其特征在于，所述收发模块还用于当判断出需要切换回 LTE或者需要 LTE进行分流时，向所述第一基站发送 RRC 连接建立请求； 18. The device according to claim 13, wherein the transceiver module is further configured to send an RRC connection establishment request to the first base station when it is determined that switching back to LTE or LTE is required for offloading;

所述收发模块还用于接收所述第一基站根据所述 RRC 连接建立请求所返回的 RRC连接建立消息，所述 RRC连接建立消息包括所述第一基站对应的 wifi分流配置信息和切换策略。 The transceiver module is also configured to receive an RRC connection establishment message returned by the first base station according to the RRC connection establishment request. The RRC connection establishment message includes the WiFi offload configuration information and switching strategy corresponding to the first base station.

19、根据权利要求 13所述的装置，其特征在于，所述收发模块还用于向所述第一基站返回 wifi分流配置拒绝消息，所述 wifi分流配置拒绝消息包括原因值； 19. The device according to claim 13, wherein the transceiver module is further configured to return a wifi offload configuration rejection message to the first base station, and the wifi offload configuration reject message includes a cause value;

20、一种切换处理装置，其特征在于，包括： 20. A switching processing device, characterized in that it includes:

发送模块，用于向 wifi控制器或者 AP发送 wifi分流请求；接收模块，用于接收所述 wifi控制器或者 AP返回的 wifi分流响应，以与所述 wifi控制器或者 AP建立通信链路和分流关联； Sending module, used to send wifi offload requests to wifi controller or AP; A receiving module, configured to receive a wifi offload response returned by the wifi controller or AP, so as to establish a communication link and offload association with the wifi controller or AP;

所述发送模块还用于根据所述 wifi分流响应，向 UE发送所述第一基站对应的切换策略和 wifi分流配置信息，以供所述 UE根据所述第一基站对应的 wifi分流配置信息，与通过 WLAN协议发现的第一 AP进行通信，并在所述 UE移动时，所述 UE根据所述第一基站对应的切换策略，获取第二 AP, 与所述第一 AP去关联，与所述第二 AP进行通信，以实现 AP的切换； The sending module is also configured to send the switching strategy and wifi offload configuration information corresponding to the first base station to the UE according to the wifi offload response, so that the UE can use the wifi offload configuration information corresponding to the first base station, Communicates with the first AP discovered through the WLAN protocol, and when the UE moves, the UE obtains the second AP according to the handover policy corresponding to the first base station, disassociates from the first AP, and associates with the first AP. The second AP communicates to implement AP switching;

其中，所述切换策略用于指示所述 UE按照 WLAN协议的漫游机制进行 AP切换。 Wherein, the switching policy is used to instruct the UE to perform AP switching according to the roaming mechanism of the WLAN protocol.

21、根据权利要求 20所述的装置，其特征在于，所述接收模块还用于接收所述 UE发送的携带有第二 ESSID的指示消息，所述指示消息为所述 UE 在检测到根据所述装置对应的切换策略获取的第二 AP对应的第二 ESSID与所述装置对应的 wifi分流配置信息中的第一 ESSID不相同时向所述装置发送的指示消息； 21. The apparatus according to claim 20, wherein the receiving module is further configured to receive an indication message carrying the second ESSID sent by the UE, and the indication message is when the UE detects that the An instruction message sent to the device when the second ESSID corresponding to the second AP obtained by the switching policy corresponding to the device is different from the first ESSID in the wifi offload configuration information corresponding to the device;

则所述装置还包括： The device further includes:

建立模块，用于与所述第二 ESSID对应的 wifi控制器建立通信链路和分流关联。 An establishment module is used to establish a communication link and offload association with the wifi controller corresponding to the second ESSID.

22、根据权利要求 20所述的装置，其特征在于，所述接收模块还用于接收所述 UE上报的 BSSID, 所述 BSSID为所述 UE在与根据所述第一基站对应的切换策略获取的第二 AP通信后上报的所述第二 AP对应的 BSSID; 22. The apparatus according to claim 20, wherein the receiving module is further configured to receive the BSSID reported by the UE, and the BSSID is obtained by the UE according to the handover policy corresponding to the first base station. The BSSID corresponding to the second AP reported after communication with the second AP;

则所述装置还包括： The device further includes:

建立模块，用于与所述第二 AP建立通信链路和分流关联。 Establishing a module, configured to establish a communication link and offload association with the second AP.

23、根据权利要求 20所述的装置，其特征在于，所述接收模块还用于接收所述 UE上报的 wifi空闲状态信息，并根据所述 wifi空闲状态信息，停止向与所述第一基站建立通信链路和分流关联的 wifi控制器或者 AP发送 wifi 分流数据。 23. The device according to claim 20, wherein the receiving module is further configured to receive wifi idle status information reported by the UE, and stop communicating with the first base station according to the wifi idle status information. The wifi controller or AP associated with establishing a communication link and offloading sends wifi offloading data.

24、根据权利要求 20至 23任一所述的装置，其特征在于，所述发送模块还用于向第二基站发送切换请求消息，所述切换请求消息包括：所述装置对应的 wifi分流配置信息，以指示所述第二基站根据所述装置对应的 wifi分流配置信息，与所述第一 AP或者其他 AP进行 wifi分流配置处理；其中，所述其他 AP是指与所述装置建立通信链路和分流关联的 wifi控制器下的除所述第一 AP之外的其他 AP; 24. The device according to any one of claims 20 to 23, characterized in that the sending module is also used to send a switching request message to the second base station, and the switching request message includes: WiFi offload configuration corresponding to the device information to instruct the second base station to perform wifi offload configuration processing with the first AP or other APs according to the wifi offload configuration information corresponding to the device; wherein, The other APs refer to other APs under the wifi controller other than the first AP that have established communication links and offloading associations with the device;

所述接收模块还用于接收所述第二基站返回的切换响应消息，所述切换响应消息包括所述第二基站对应的 RRC连接配置信息； The receiving module is also configured to receive a handover response message returned by the second base station, where the handover response message includes the RRC connection configuration information corresponding to the second base station;

所述发送模块还用于发送切换消息给所述 UE,所述切换消息包括第二基站对应的 RRC连接配置信息、 wifi分流配置信息和切换策略，以供所述 UE 根据所述第二基站对应的 RRC连接配置信息，进行切换处理，按照所述第二基站对应的 wifi分流配置信息，与通过所述 WLAN协议发现的 AP进行通信，并在所述 UE移动过程中，按照所述第二基站对应的切换策略进行 AP切换处理。 The sending module is also configured to send a switching message to the UE. The switching message includes the RRC connection configuration information corresponding to the second base station, the wifi offload configuration information and the switching strategy, so that the UE can perform the switching according to the corresponding information of the second base station. RRC connection configuration information, perform handover processing, communicate with the AP discovered through the WLAN protocol according to the wifi offload configuration information corresponding to the second base station, and during the movement of the UE, according to the second base station The corresponding switching policy performs AP switching processing.

25、一种用户设备，其特征在于，包括：存储器，用于存储指令；处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如权利要求 1至 7任一所述的切换处理方法。 25. A user equipment, characterized in that it includes: a memory for storing instructions; a processor coupled to the memory, the processor is configured to execute instructions stored in the memory, and the processing The processor is configured to perform the handover processing method according to any one of claims 1 to 7.

26、一种基站，其特征在于，包括：存储器，用于存储指令； 26. A base station, characterized in that it includes: a memory, used to store instructions;

处理器，与所述存储器耦合，所述处理器被配置为执行存储在所述存储器中的指令，且所述处理器被配置为用于执行如权利要求 8至 12任一所述的切换处理方法。 a processor coupled to the memory, the processor being configured to execute instructions stored in the memory, and the processor being configured to perform a switching process as claimed in any one of claims 8 to 12 method.

27、一种切换处理***，其特征在于，包括： UE 和基站，其中，所述 UE为如权利要求 13至 19任一所述的切换处理装置；所述基站为如权利要求 20至 24任一所述的切换处理装置。 27. A handover processing system, characterized in that it includes: a UE and a base station, wherein the UE is the handover processing device according to any one of claims 13 to 19; the base station is a handover processing device according to any one of claims 20 to 24. 1. The switching processing device.