Patent ID: 8548406
Filing Date: 2013-10-01
Classification: H04B,H04L,H04W

Abstract:
1. A method of transmitting an uplink reference signal in a multiple antenna system, performed by a user equipment (UE) having a plurality of power amplifiers and a plurality of antennas, the method comprising: transmitting a first sounding reference signal for uplink channel measurement on a first antenna; and transmitting a second sounding reference signal for uplink channel measurement on a second antenna, wherein the first sounding reference signal and the second sounding reference signal are transmitted using different time regions and a same frequency region when using one power amplifier having maximum power among the plurality of power amplifiers, and wherein the first sounding reference signal and the second sounding reference signal are transmitted using a same time region and different frequency regions when using the plurality of power amplifiers, wherein a sum of powers of the plurality of power amplifiers is configured to be identical with the maximum power.