LOW-COST AND LOW-COMPLEXITY INNER COMMUNICATION RECEIVER FOR RECEIVE DIVERSITY

摘要

A communication receiver (RR), for mobile communication equipment (UE), comprises i) first (AN1) and second (AN2) antenna elements for receiving first and second signals respectively representative of first and second symbols encoded with a first or second channel coefficient, ii) first (DL1) and second (DL2) delay lines for delaying the first and second signals respectively, iii) a master rake means (MR) arranged to up-sample a pilot channel sequence at chip rate to mix it with the second delayed signals to deliver correlated delayed signals and to determine first and second channel coefficient estimates from the first delayed signals and the correlated delayed signals, iv) a slave rake means (MS) for determining first and second auxiliary composite symbols from the first and second delayed signals, a scrambling code sequence and a spreading code sequence, and v) a combining means (DM) for combining the first and second auxiliary composite symbols with the first and second channel coefficient estimates to determine first and second output signals representative of the first and second symbols respectively times the sum of the first channel coefficient estimate squared and second channel coefficient estimate squared.