MAXIMUM SIGNAL-TO-INTERFERENCE-AND-NOISE SPREAD SPECTRUM RAKE RECEIVER AND METHOD

摘要

A RAKE receiver (200) incorporates maximum signal-to-interference-and-noise ratio (SINR) combining, implemented adaptively using the least mean-square (LMS) adaptation , recursive least-square adaptation, or multi-stage Weiner adaptation to adjust the weightings for RAKE finger combining. Alternatively, the weighting values for RAKE finger combining may be determined by estimation of the channel mean and the signal correlation matrix from the pilot, and projection of the mean onto the inverse of the correlation matrix. The weightings for these methods result in a combined RAKE receiver output having enhanced, near maximum, SINR. A particular implementation method (400) incorporates the step of LMS adapting RAKE finger weights in order to enhance the combined RAKE receiver output.