Patent ID: 9094924
Filing Date: 2015-07-28
Classification: H04L,H04W

Abstract:
1. A method of controlling a transmit power of an uplink sounding reference signal (SRS) in user equipment, the method comprising: receiving offset information indicating a specific offset value for an uplink SRS transmit power, from a transmission/reception point, wherein the specific offset value is determined using a constant step size in an entire range including a first range and a second range, the first range is a base range, and the second range includes comparatively larger values than the first range; and transmitting the uplink SRS with the uplink SRS transmit power based on the specific offset value indicated by the offset information, wherein when a parameter Ks defined by a higher-layer signaling of the transmission/reception point is 1.25, the entire range is [−3, 28] dB, the first range is [−3, 12] dB, the second range is (12, 28] dB, and the constant step size is 1 dB; and when the parameter Ks=0, the entire range is [−10.5, 28.5] dB, the first range is [−10.5, 12] dB, the second range is (12, 28.5] dB, and the constant step size is 1.5 dB.