发明名称 |
SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING |
摘要 |
Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals to produce a receiver output; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor coupled to the receiver, wherein the processor applies a Fourier transform to the receiver output; and a controller programmed to instruct the transmitter to transmit at least one symbol representing a request for bandwidth allocation on a first carrier; wherein the controller is further programmed to determine when a collision has occurred on the first carrier.
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申请公布号 |
US2013121131(A1) |
申请公布日期 |
2013.05.16 |
申请号 |
US201213707343 |
申请日期 |
2012.12.06 |
申请人 |
HTC CORPORATION |
发明人 |
DAPPER MARK J.;GEILE MICHAEL J.;HILL TERRANCE J.;ROBERTS HAROLD A.;ANDERSON BRIAN D.;BREDE JEFFREY;WADMAN MARK S.;KIRSCHT ROBERT J.;HERRMANN JAMES J.;FORT MICHAEL J.;BUSKA STEVEN P.;SOLUM JEFF;ENFIELD DEBRA LEE;BERG DARRELL;SMIGELSKI THOMAS;TUCKER THOMAS C.;HALL JOE;LOGAJAN JOHN M.;BOUALOUANG SOMVAY;LOU HENG;ELPERS MARK D.;DOWNS MATT;FERRIS TAMMY;OPOCZYNSKI ADAM;RUSSELL DAVID S.;NELSON CALVIN G.;SAMANT NIRANJAN R.;CHIAPPETTA JOSEPH F.;SARNIKOWSKI SCOTT |
分类号 |
H04L27/26;G06F17/14;H04B10/272;H04H20/69;H04H20/77;H04H20/78;H04H20/79;H04H20/80;H04H60/86;H04H60/96;H04H60/97;H04J3/14;H04J14/02;H04L1/00;H04L1/24;H04L5/02;H04L5/14;H04L12/10;H04L12/12;H04L12/24;H04L12/26;H04L12/28;H04L12/44;H04L25/03;H04L27/00;H04L27/34;H04M7/00;H04M9/02;H04N7/173;H04N7/22;H04N7/24 |
主分类号 |
H04L27/26 |
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