Patent ID: 9532315
Filing Date: 2016-12-27
CPC Classification: H04L,H04W

Claim Text:
1. A communication apparatus comprising: an offset setter which, in operation, sets a first offset to control transmission power of a first Sounding Reference Signal (SRS) and to set a second offset to control transmission power of a second SRS, the second offset being different from the first offset; a notifier which, in operation, notifies the first offset and the second offset to a communication partner apparatus; a receiver which, in operation, receives from the communication partner apparatus the first SRS transmitted at the transmission power controlled by the first offset and at a first transmission time interval, and the second SRS transmitted at the transmission power controlled by the second offset and at a second transmission time interval that is different from the first transmission time interval; and an estimator which, in operation, estimates channel quality of an uplink data channel based on the received first SRS and the received second SRS.