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:
Jun. 29, 2010
Filed:
Dec. 18, 2006
Zi-tsan Chou, Taipei, TW;
Zi-Tsan Chou, Taipei, TW;
Institute for Information Industry, Taipei, TW;
Abstract
Asynchronous power management methods and systems for a first station and a second station in a wireless network. The second station dynamically tunes a SRI (Schedule Repetition Interval) value according to residual power status, quality-of-service requirements, or other considerations. The SRI value is an odd prime number. Once the SRI is determined, the second station sets the number and positions of ABIs (Awake Beacon Intervals)' within an SRI. An ABI-set defined as the positions of ABIs in an SRI forms a cyclic difference set comprising at least two consecutive BIs. The second station transmits a beacon frame within a beacon window. When the first station has recently received the beacon frame from the second station, the first station predicts the awake/sleep schedule of the second station, and transmits data frames to the second station at the ABI of the second station.