The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 25, 2014

Filed:

Sep. 26, 2012
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Hui Liu, San Jose, CA (US);

Douglas Chan, San Jose, CA (US);

Tak Ming Pang, Palo Alto, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 36/18 (2009.01); H04W 80/04 (2009.01);
U.S. Cl.
CPC ...
H04W 80/04 (2013.01); H04W 36/18 (2013.01);
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.


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