METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING STATUS INFORMATION OF FORWARD CHANNEL IN A MOBILE COMMUNICATION SYSTEM SUPPORTING SELECTIVE TRANSMIT DIVERSITY

摘要

A MS supporting selective transmit diversity (STD) efficiently transmits forward channel status information to a BS in a 1xEV-DV communication system. The MS receives signals transmitted from the BS through a plurality of transmission antennas, measures strengths of the received signals, compares the measured signal strengths after compensating for a transmission power difference between the transmission antennas, and selects a transmission antenna having the highest signal strength. The MS transmits forward channel status information indicating measured strength for a signal transmitted from the selected transmission antenna with antenna selection information. The forward channel status information includes absolute status information representing measured signal strength for a transmission antenna selected at a current time interval, or relative status information representing a result obtained by comparing the measured signal strength for the transmission antenna selected at the current time interval with that of a transmission antenna selected at a previous time interval.