公开(公告)号：US08897261B2

公开(公告)日：2014-11-25

申请号：US13626983

申请日：2012-09-26

Applicant: Cisco Technology, Inc.

Inventor： Hui Liu ,  Douglas Chan ,  Tak Ming Pang

IPC: H04W4/00 ,  H04W36/18 ,  H04W80/04

CPC classification number: H04L12/185 ,  H04W12/02 ,  H04W12/06 ,  H04W36/026 ,  H04W36/18 ,  H04W48/20 ,  H04W72/005 ,  H04W80/04 ,  H04W84/12 ,  H04W88/08

Abstract: Techniques are provided for delivering data to a wireless client device in a wireless local area network via a plurality of access point devices as the wireless client device roams from one access point device to another. A wireless client device receives data communications (i.e., traffic) via a first wireless access point device in the wireless local area network. An impending roam of a wireless client device is detected. A set of one or more candidate wireless access point devices other than the first wireless access point device is determined to which the wireless client device may potentially roam. The one or more wireless access point devices in the set are assigned to a multicast group, and the traffic is sent to the multicast group.

Abstract translation: 提供了技术，用于当无线客户端设备从一个接入点设备漫游到另一个接入点设备时，经由多个接入点设备将数据传送到无线局域网中的无线客户端设备。 无线客户端设备经由无线局域网中的第一无线接入点设备接收数据通信（即业务）。 检测到无线客户端设备即将发生的漫游。 确定除了第一无线接入点设备之外的一个或多个候选无线接入点设备的集合，无线客户端设备可能潜在地漫游到该无线接入点设备。 集合中的一个或多个无线接入点设备被分配给多播组，并且业务被发送到多播组。