Apparatus and method for determining beamforming vector in a...

Details Apparatus and method for determining beamforming vector in a... Apparatus and method for determining beamforming vector in a...

2011-03-15

2011-03-15

Yun, Eugene (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

With control signal

Reexamination Certificate

active

07907913

ABSTRACT:
An apparatus and method for determining a beamforming vector in a codebook-based transmission beamforming system are provided. In a feedback method for a receiver in a codebook-based transmission beamforming system, forthcoming channel values for a forthcoming period are generated using M present and previous channel estimates. Effective channel gains for all transmission beamforming vectors included in a codebook are calculated using the forthcoming channel values. A codebook index corresponding to the maximum effective channel gains is fed back to a transmitter.

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