SCHEDULING FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) TRANSMISSIONS IN A WIRELESS LOCAL AREA NETWORK (WLAN)

SCHEDULING FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) TRANSMISSIONS IN A WIRELESS LOCAL AREA NETWORK (WLAN)

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...

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Hauptverfasser: VLANTIS, George A, CHU, Liwen
Format: Patent
Sprache:eng ; fre ; ger
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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creator VLANTIS, George A
CHU, Liwen
description 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 downlink 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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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
title SCHEDULING FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) TRANSMISSIONS IN A WIRELESS LOCAL AREA NETWORK (WLAN)
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