Cdma receiver

摘要

The invention relates to a CDMA receiver for receiving, in a multiple subscriber environment, a CDMA signal transmitted with a chip rate by a transmitter via different signal paths of a physical transmission channel. Said CDMA receiver comprises: a receiving device (1) for receiving the CDMA signal; a rake receiver circuit (6) with a number of parallelly connected delay devices (71-7n) for detecting the signal components of the CDMA signal that are transmitted via the different signal paths; a channel estimation circuit (20) for estimating the channel coefficients h of a transmission channel H by using a predetermined reference data sequence contained in the received CDMA signal; a weighing coefficient calculation device for calculating weighting coefficients m for the different signal components of the CDMA signal according to the estimated channel coefficients h and to the stored spread codes and scrambling codes; a weighting circuit (12) for weighting the signal components with the calculated weighting coefficients m, and; a combiner (15) for combining the weighted signal components to form an estimated received data signal.