SYSTEM AND METHOD FOR OFDMA TONE ALLOCATION IN NEXT GENERATION WI-FI NETWORKS

A wireless station (STA) receives a downlink OFDMA frame with a data payload comprising OFDMA symbols. The OFDMA symbols have 256 FFT tones per 20 MHz of channel bandwidth, some of the tones used for data and as dedicated pilot tones. Tones are partitioned into resource units which may be allocated...

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Bibliographische Detailangaben
Hauptverfasser:	SUH, Jung Hoon, ABOUL-MAGD, Osama
Format:	Patent
Sprache:	eng ; fin
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A wireless station (STA) receives a downlink OFDMA frame with a data payload comprising OFDMA symbols. The OFDMA symbols have 256 FFT tones per 20 MHz of channel bandwidth, some of the tones used for data and as dedicated pilot tones. Tones are partitioned into resource units which may be allocated to at least the wireless STA and another wireless STA in the same transmission. The wireless STA performs residual carrier frequency offset compensation by tracking a phase of pilot symbols in each RU of each payload OFDMA symbol based on the at least two dedicated pilot tones carried in each respective RU, wherein the residual carrier frequency offset compensation includes estimating a residual carrier frequency offset based on the at least two dedicated pilot tones carried in each respective RU.