Advanced whitener-rake receiver for WCDMA terminal, method for operating receiver, mobile station, circuit and computer readable storage medium

摘要

CDMA receiver 10 includes a symbol or per-chip Ns samples the signal output from that of Nrx receive antennas are sampled (20A, 20B), the receiver input which is connected to the signal output, Lake matched filter 14, such as (RAKE) of , and a whitening filter (20) for connecting to the receiver input to the input of the matched filter. The first individual whitening filter receives only one of the new samples, a second individual whitening filter are the first to receive a sample and add the sample, such as individual whitening filter, and the n-th individual whitening filter, the first n in addition to the n-1 samples, such as the -1-th individual whitening filter to receive the further one of the remaining samples, the whitening filter comprises NsNrx parallel whitening filters _{w j, k (22A-22D} ) , individual whitening filters w_{j, k} is NsNrx receives a new signal samples for each symbol interval i via a signal connection matrix (28). The filtered signal samples shown in the Nrx outputs is not correlated with any other filtered signal sample a shown in the Nrx outputs, the whitening filter has Nrx outputs for outputting filtered signal samples. Whitening filter also includes a delay line 30, which is composed of a plurality of series-connected line delay elements, each delay line element has a delay of one symbol interval. The delay line provides a delayed version of the input has to be connected to the output of said signal connection matrix, NsNrx parallel whitening filters w_j in the signal _{samples, k.}