Patent ID: 8553795

Claim:
A method employed in wireless communication system, the method comprising: transmitting at least one power control reference signal from an antenna selected from a group of M antennas, with M a positive integer; conveying a power spectral density (PSD) offset from the antenna employed to report the at least one power control reference signal, wherein the PSD offset is based at least in part on a reference PSD level for transmitting the at least one power control reference signal, and the PSD offset adjusts the power that a base station assigns to a mobile terminal for transmitting data in a reverse link; and transmitting a pilot signal from each antenna in the set of M antennas for estimating a multiple-input multiple output channel when M>1, and a SIMO channel when M=1, wherein the PSD offset is determined based at least on a power headroom of a power amplifier in the physical antenna selected to report at least one power control reference signal.