USING AN UPLINK GRANT AS TRIGGER OF FIRST OR SECOND TYPE OF CQI REPORT.

摘要

Channel state feedback is provided from a UE (800) to a base station (700) as a first, detailed or a second, less detailed type of channel state feedback information. Initially it is determined (403) whether the UE has received an uplink grant from the base station or not. If the UE has received an uplink grant, a first type of channel state feedback information is transmitted (404) to the base station on the granted resource. If, however, the UE has not received an uplink grant, a second type of channel state feedback information is transmitted (405) to the base station. Different types of channel state feedback information enables a UE and an associated base station to use available resources more efficiently, when requesting for and delivering channel state feedback information.