Patent ID: 8812045
Filing Date: 2014-08-19
Classification: H04B,H04W

Abstract:
1. A method for controlling a transmission power of an uplink data channel at a transmitting end that supports a plurality of transmission ranks, the method comprising the steps of: determining a first transmission power using at least one rank variable dependent on the transmission rank in a specific subframe; comparing the determined first transmission power with a second transmission power which is the preset maximum transmission power; and determining the smaller value from the result of the comparison as the transmission power of the data channel, wherein the at least one rank variable includes a parameter (ΔTF) for power compensation through a modulation and coding scheme (MCS) for dynamic channel change and includes an offset value (ΔOFFSET) for power correction which is set per rank, wherein a power variable range of the offset value (ΔOFFSET) is smaller than a power variable range of the parameter (ΔTF), wherein the parameter (ΔTF) is determined by equations: wherein TBS wherein if control information is transmitted through a physical uplink shared channel (PUSCH) without uplink shared channel data, β