Method and apparatus for providing efficient precoding...

Details Method and apparatus for providing efficient precoding... Method and apparatus for providing efficient precoding...

H - Electricity

04

B

H04B 7/06 (2006.01) H04L 1/06 (2006.01)

Patent

CA 2660945

Precoding feedback scheme based on Jacobi rotations to generate the feedback in the uplink. For a wireless communication system including a transmitter and a receiver. The system may use either a single codeword (SOW) or a double codeword (DCW). The precoding scheme is based on transmit beamforming (TxBF). Differential feedback is considered, with periodic non-differential feedback to avoid error accumulation or propagation due to differential processing.

Selon cette invention, un procédé entrée multiple sortie multiple utilise le précodage et la rétroaction dans un système de communication radio comprenant un émetteur et un récepteur. Le système peut utiliser soit un mot de code unique, soit un mot de code double. Le procédé de précodage est basé sur la mise en forme de faisceaux d'émission (TxBF). La rétroaction différentielle et non différentielle combinée avec remise à zéro périodique est prise en considération.

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