METHOD FOR DETERMINING MULTI-USER CHANNEL QUALITY IN MOBILE COMMUNICATION SYSTEM, AND USER TERMINAL AND BASE STATION THEREFOR

摘要

In the present invention, a method for determining multi-user channel quality in a mobile communication system, user terminals and a base station are provided. The method involves each user terminal calculating MU CQI on the basis of a first feedback template transmitted from the base station that controls said user terminal, or a second feedback template set by a local station, and then feeding the calculated MU CQI back to the base station. In the first feedback template or the second feedback template, feedback ratios between MU CQIs at a plurality of hypothetical interference counts, k, are defined, where k is an integer larger than 0 but smaller than the maximum number of users that can be scheduled for the base station. This invention enables the accuracy of multi-user MIMO scheduling to be improved.