Patent ID: 6873860
Filing Date: 2005-03-29
Classification: H04B,H04L

Abstract:
1. Base transceiver station for a radio communication system, the base transceiver station having a transmitter unit, a receiver unit independent of said transmitter unit, and a transmit path between the transmitter unit and an antenna and a receive path between the receiver unit and said antenna, wherein the receiver unit determines output data from received signals and the transmitter unit converts input data into transmitted signals and pre-distorts the transmitted signals using at least one compensation value, and wherein the base transceiver station further comprises: a branching unit for transferring at least a portion of a transmitted signal from the transmit path to the receiver unit; and a processing unit independent of said transmitter which is adapted to receive a representation of the input data to said transmitter unit and the output data from said receiver unit; the processing unit being further adapted to compare the input data to the output data, to determine a first compensation value for the pre-distortion according to the comparison, and to update the compensation value of the transmitter unit with the first compensation value; wherein said receive path is adapted to transfer the output of the branching unit to the receiver unit, and wherein the processing unit compares the input data to the output data and determines the first compensation value according to the comparison.