Patent ID: 9374724
Filing Date: 2016-06-21
CPC Classification: H04L,H04W

Claim Text:
1. A method in a radio network node for estimating channel gain over frequencies of a bandwidth in a radio communications network, which radio network node serves a user equipment in the radio communications network, the method comprising: measuring a first channel gain based on a received power of a sounding reference signal over a first set of frequencies from the user equipment, which first set of frequencies is comprised in the frequencies of the bandwidth; measuring a second channel gain based on a received power of a received demodulation reference signal of a physical uplink shared channel over a second set of frequencies from the user equipment, which second set of frequencies is comprised in the frequencies of the bandwidth; and estimating a third channel gain, for Frequency Selective Scheduling or Frequency Selective Link Adaptation, over the frequencies of the bandwidth based on the measured first channel gain and the measured second channel gain, wherein the estimating comprises extrapolating the first channel gain and the second channel gain to cover frequencies outside the first set of frequencies and the second set of frequencies.