Patent ID: 8331499

Claim:
A receiver for a telecommunications system in which a data signal is transmitted using a closed loop transmit diversity system and a pilot signal is transmitted using a space time transmit diversity system through two different channels H 1 and H 2 , the receiver comprising: a single equalizer for equalizing a signal received by the receiver, which signal contains the pilot signal and the data signal, wherein the equalizer is configured to produce an equalized signal in which effects caused by a propagation channel, H, through which the data signal was transmitted are alleviated, wherein the propagation channel H is a combination of channels H 1 and H 2 , a despreading and descrambling unit for generating, from the equalized signal, an improperly equalized version of the pilot signal which includes combined pilot signals received from at least two transmit antennas of the space time transmit diversity system through channels H 1 and H 2 , and equalized according to the propagation channel H, and a processor for processing the equalized signal to recover the pilot signal, wherein the processor is configured to recover the pilot signal by modifying the improperly equalized version of the pilot signal by reference to a known pilot signal.