Transmit diversity transmitter and receiver for radio...

Details Transmit diversity transmitter and receiver for radio... Transmit diversity transmitter and receiver for radio...

H - Electricity

04

B

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

Patent

CA 2379122

A space time transmit diversity scheme using two antennas (9, 10) in which a data block of symbols (D22) is transmitted simultaneously with a complex conjugate of another block (D21*). With suitable receiver (15) processing, the symbols can be recovered with only a small complexity increase. The invention has a particular application to CDMA systems operating in TDD mode.

L'invention porte sur un schéma de diversité de transmission spatio-temporel utilisant deux antennes (9, 10) dans lesquelles un bloc de données de symboles (D22) est transmis simultanément avec un conjugué complexe d'un autre bloc (D21*). Par un traitement approprié du récepteur (15), les symboles peuvent être récupérés avec seulement un peu plus de complexité. Cette invention peut s'appliquer notamment à des systèmes AMDC fonctionnant en mode multiplexage temporel.

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