CHANNEL QUALITY INDICATOR FEEDBACK METHOD AND USER EQUIPMENT

摘要

A Channel Quality Indicator (CQI) feedback method and a User Equipment (UE) are disclosed. The CQI feedback method comprises the following steps of: determining a set of coordinated BSs participating in multi-BS coordination, the set of coordinated BSs containing a serving BS and a non-serving BS; and feeding back, for one predefined sub-band or each predefined sub-band of multiple predefined sub-bands, a difference between a CQI of non-coherent joint transmission and a common CQI value obtained by the UE to the serving BS. The present invention has the advantages of simple implementation and low overhead, may be applicable in the LTE-A system and 4G system.