Method and device for wireless communication using MIMO...

Details Method and device for wireless communication using MIMO... Method and device for wireless communication using MIMO...

2011-06-28

2011-06-28

Pham, Tuan (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

C455S065000, C455S069000, C455S114200, C455S126000

Reexamination Certificate

active

07970355

ABSTRACT:
The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and/or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD.

REFERENCES:
patent: 2006/0155798 (2006-07-01), Ketchum et al.
patent: 2006/0234645 (2006-10-01), Lin et al.

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