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.
Patent No.:
Date of Patent:
Aug. 23, 2011
Filed:
Jan. 21, 2005
Maintaining delivery traffic indication message (dtim) periods on a per-wireless client device basis
James Wang, Richmond Hill, CA;
Tom Nagy, Waterloo, CA;
James Wang, Richmond Hill, CA;
Tom Nagy, Waterloo, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
An access point is to transmit delivery traffic indication messages at different periods of beacon frames for different wireless client devices associated with the access point. A client device may store an indication of a preferred period of beacon frames at which to listen to delivery traffic indication messages when in power save mode. The client device may adjust its preferred period according to predefined considerations, for example a charge level of a battery to power the client device and/or an expected usage model for the client device. A client device may negotiate its preferred period with the access point.