Patent ID: 6690665
Filing Date: 2004-02-10
Classification: H04B,H04W

Abstract:
A receiving device for a mobile communication system, comprising:a despreader for despreading channel signals which have been transmitted in a time-switched transmission diversity (TSTD) mode of operation; a pilot separator for separating a pilot signal from the despread channel signals; a channel estimator for generating a channel estimation signal by selecting pilot signals transmitted from a same antenna of a transmitter according to a TSTD pattern of the transmitter, wherein the channel estimator comprises: at least two buffers for storing the pilot signals, a switch for selecting pilot signals transmitted from a same antenna that has transmitted a present pilot signal, by switching outputs of the buffers according to the TSTD pattern, and an operator for operating pilot signals transmitted from the same antenna to generate the channel estimation signal; and a compensator for compensating the despread channel signals with the channel estimation signal.