Apparatus and method for generating transmitter antenna weights

Details Apparatus and method for generating transmitter antenna weights Apparatus and method for generating transmitter antenna weights

H - Electricity

04

B

H04B 7/06 (2006.01) H01Q 3/26 (2006.01) H04J 11/00 (2006.01)

Patent

CA 2300449

Antenna weights for a transmit path (3) between two communication devices (1, 2), the first device (1) having an antenna array (4, 5, 6) are generated in the second device (2) and fed back to weighting circuitry (9, 10, 11, 12) in the first device (1). The invention is particularly applicable to multicarrier systems such as OFDM systems. Only weights for those sub--carriers identified as being received with comparatively poor signal quality are calculated and fed back to the first device (1), thus limiting the additional overhead requirements to a minimum.

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