US Patent 7848277 Power management methods and systems

Patent 7848277 was granted and assigned to Institute for Information Industry on December, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Institute for Information Industry

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7848277

Date of Patent

December 7, 2010

Patent Application Number

11359539

Date Filed

February 23, 2006

Patent Primary Examiner

‌

Lester Kincaid

Patent abstract

Power management methods and systems for a first station and a second station in an ad-hoc network. Each station enters the normal beacon interval (NBI) every certain number of beacon intervals (BIs) for data transmission, a Listen Interval (LI). When a station switches to a power-saving mode, it first determines the number of “beacon-window-only beacon intervals (BBIs)” within a LI. In addition, each station broadcasts a beacon frame comprising at least information about “the remaining number of BIs (RBI)” within a beacon window. Once the first station correctly receives the beacon frame from the second station, the first station predicts the NBI of the second station according to the RBI. At the NBI of the second station, the first station transmits data frames to the second station.