Scheduling for orthogonal frequency division multiple access (OFDMA) transmissions in a wireless local area network (WLAN)

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United States of America Patent

PATENT NO 9991996
SERIAL NO

15006191

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Abstract

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An access point (AP) contends for a medium during a contention period in order to obtain exclusive control of the medium for a certain time period that may include one or more transmission opportunities. The AP and client stations (STAs) communicate during the time period using orthogonal frequency division multiple access (OFDMA) techniques with scheduled use (i.e., allocation) of sub-channels of the medium. The AP controls this scheduling for down-link and up-link communications by sending control signaling to inform the STAs of the resource allocation schedule which specifies STAs involved in the OFDMA communications along with the sub-channel identification bandwidth allocated to each STA. The control signaling may be a combination of physical layer (PHY) and medium access control layer (MAC) communicated information.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS INTERNATIONAL N V1228 PLAN-LES-OUATES GENEVA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chu, Liwen San Ramon, US 516 4398
Vlantis, George A Sunnyvale, US 64 951

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