Unscheduled power save delivery method in a wireless local area network for real time communication

A mobile station ( 106 ) establishes a real time communication link via an access point ( 102 ) for carrying voice or other time-sensitive data. A WLAN subsystem ( 204 ) of the mobile station is normally kept in a low power state. Upon initiating a communication link the mobile station signals to th...

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Bibliographic Details
Main Author EMEOTT STEPHEN P.,CHEN YE,SIMPSON FLOYD D.,WANG HUAI Y.,WILSON TIMOTHY J.,SMAVATKUL NATTAVUT
Format Patent
LanguageEnglish
Published 07.03.2007
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
SIGNALLING
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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Summary:A mobile station ( 106 ) establishes a real time communication link via an access point ( 102 ) for carrying voice or other time-sensitive data. A WLAN subsystem ( 204 ) 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 ( 614 ), 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 ( 712 ), acquiring the WLAN channel ( 407 ), 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.
Bibliography:Application Number: CN200480037975