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:
Jul. 12, 2005
Filed:
Dec. 19, 2003
Stephen P. Emeott, Rolling Meadows, IL (US);
YE Chen, Schaumburg, IL (US);
Floyd D. Simpson, Lake Worth, FL (US);
Huai Y. Wang, Greenacres, FL (US);
Timothy J. Wilson, Rolling Meadows, IL (US);
Nattavut Smavatkul, Elkgrove Vllg., IL (US);
Stephen P. Emeott, Rolling Meadows, IL (US);
Ye Chen, Schaumburg, IL (US);
Floyd D. Simpson, Lake Worth, FL (US);
Huai Y. Wang, Greenacres, FL (US);
Timothy J. Wilson, Rolling Meadows, IL (US);
Nattavut Smavatkul, Elkgrove Vllg., IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A mobile station () establishes a real time communication link via an access point () for carrying voice or other time-sensitive data. A WLAN subsystem () of the mobile station is normally kept in a low power state. Upon initiating a communication link the mobile station signals to the access point that unscheduled power save delivery mode will be used (), and the access point reserves resources to assure the necessary quality of service. The mobile station initiates a frame transaction by first powering up the WLAN subsystem (), acquiring the WLAN channel (), and transmitting a polling frame. Upon successful receipt of the polling frame the access point prepares to reply with an aggregate response. The aggregate response commences by transmitting all data in an aggregate buffer, including both reserved and unreserved data buffers. Upon successful receipt of the aggregate response, the mobile station places the WLAN subsystem back into a low power state.