Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

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United States of America Patent

PATENT NO 9887808
SERIAL NO

15433011

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Abstract

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The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

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Patent Owner(s)

  • INTERDIGITAL TECHNOLOGY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bultan, Aykut Santa Clara, US 48 956
Huang, Yuejin Coram, US 23 188
Koo, Changsoo Melville, US 20 1851
Kwak, Jaeyoung Morganville, US 31 370
Olesen, Robert L Huntington, US 212 6760
Ozluturk, Fatih M Sands Point, US 204 2511
Pasad, Kalpendu R Cupertino, US 22 458
Zeira, Eldad M Huntington, US 141 2225

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