METHOD AND CONTROLLING NODE FOR CONTROLLING RADIO COMMUNICATION IN A CELLULAR NETWORK

摘要

A method and a controlling node (700) of a cellular network, to control radio communication over a radio link used by a User Equipment, UE, to communicate radio signals with multiple radio nodes (702) serving a combined cell. The controlling node (700) receives from the UE a Channel Quality Indicator, CQI, that has been determined by the UE based on a common pilot signal transmitted by the multiple radio nodes. When it is detected that the received CQI has been determined by the UE during a time interval when one or more node-specific pilot signals were also transmitted individually by one or more of the multiple radio nodes in the combined cell, the controlling node (700) changes the received CQI to compensate for interference caused by the one or more node-specific pilot signals on the common pilot signal when received by the UE. The changed CQI is then used for evaluating the radio link. Thereby, the evaluation of the radio link is made more accurately and truthfully since the original received CQI was overly pessimistic due to the interference caused by the node-specific pilot signal(s).