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    • 1. 发明专利
    • Roaming method for mobile terminal in wlan, related access controller and access point device
    • WLAN移动终端的漫游方法,相关接入控制器和接入点设备
    • JP2014079020A
    • 2014-05-01
    • JP2014018232
    • 2014-02-03
    • Alcatel-Lucentアルカテル−ルーセント
    • ZHENG JUNYAO CHUNYANWEN HAIBOBIN FANXIANGMA SONGWEI
    • H04W36/10H04W80/04H04W84/12
    • PROBLEM TO BE SOLVED: To provide a roaming method for a mobile terminal in a wireless local area network.SOLUTION: A target access point (AP) device receives an access request for roaming from the mobile terminal, and a target access controller (AC) obtains mobility information of the mobile terminal in an original extended service set on the basis of the access request. The mobility information includes information of an AP device, an AC and a mobile agent server associated with the mobile terminal. Then the target AC determines whether the roaming for the mobile terminal is inter-IP subnet roaming or intra-IP subnet roaming on the basis of the obtained mobility information. The target AC performs mobile IP based handover when the roaming is determined as the inter-IP subnet roaming and performs Inter Access Point Protocol based handover when the roaming is determined as the intra-IP subnet roaming.
    • 要解决的问题:为无线局域网中的移动终端提供漫游方法。解决方案:目标接入点(AP)设备从移动终端接收漫游的接入请求和目标接入控制器(AC) 基于访问请求,在原始扩展服务集中获取移动终端的移动性信息。 移动信息包括与移动终端相关联的AP设备,AC和移动代理服务器的信息。 然后,目标AC基于所获得的移动性信息来确定移动终端的漫游是否是IP网间漫游或IP内子网漫游。 当漫游被确定为IP网内漫游时,目标AC执行基于移动IP的切换,并且当漫游被确定为内部IP子网漫游时,执行基于接入点协议的切换。