METHOD AND ARRANGEMENT FOR FEEDING BACK CQI VALUES IN A TELECOMMUNICATION SYSTEM

摘要

The invention relates to a method in a radio base station for improving the frequency resolution in the reporting of CQI, from a UE, where each CQI report is constituted of frequency domain averaged CQI values, each value being calculated for a bin of resource blocks (RBs). The method comprises the steps of - receiving CQI reports from the UE constituted of frequency domain averaged CQI values, wherein the borders between the RB bins for consecutive CQI reports have been varied over time by the application of a RB offset value; - performing time domain filtering of subsequent CQI reports such that the CQI for the resource blocks are estimated by averaging the CQI values of consecutive CQI reports that overlap the same resource blocks; whereby an improved frequency resolution is achieved. The invention furthermore relates to a method in a UE, a base station and a UE.