Patent ID: 6442150
Filing Date: 2002-08-27
Classification: H04W

Abstract:
A base station for a CDMA (code division multiple access) cellular mobile communication network comprising:an encoder for encoding signals from a base station controller, said signals including a first or a second control message multiplexed with a user signal on a traffic channel assigned to a mobile station, said first control message indicating that a soft handoff operation is initiated and said second control message indicating that the soft handoff operation is being terminated; a variable gain amplifier coupled to said encoder; a transmitter coupled to the output of said amplifier for transmission of a spread spectrum signal to said mobile station; and a control message detector for detecting when said first control message is being encoded by said encoder and controlling said amplifier so that said encoded first control message is amplified with a gain higher than a gain with which the encoded user signal of said traffic channel is amplified.