COMMUNICATION RECEIVER WITH MULTIPLEXING OF RECEIVED SIGNAL, FOR RECEIVE SPACE DIVERSITY

摘要

A communication receiver (CR) comprises i) first (ANl) and second (AN2) antennae for receiving respectively first and second RF signals, a) a RF processing module (RM) a) for down-converting the first RF signals with first in- phase and quadrature local oscillator signals spread with a first analog code sequence, and the second RF signals with second in-phase and quadrature local oscillator signals spread with a second analog code sequence, and b) for multiplexing the first and second down- converted in-phase signals to deliver a multiplexed down-converted in-phase signal and the first and second down-converted quadrature signals to deliver a multiplexed down- converted quadrature signal, and iii) a baseband processing module (BM) a) for converting the in-phase and quadrature multiplexed down-converted RF signals into in-phase and quadrature multiplexed digital signals, b) for generating the first and second code sequences, c) for producing first and third despreaded and demultiplexed in-phase signals and second and fourth despreaded and demultiplexed quadrature signals from the in-phase and quadrature multiplexed digital signals and the first and second code sequences, and d) for retrieving data initially contained into the received first and second RF signals from the first and third despreaded in-phase signals and second and fourth despreaded quadrature signals.