Channel quality indicator feedback method and a user equipment

The invention provides a channel quality indicator feedback method and user equipment. The channel quality indicator (CQI) feedback method comprises the steps that a cooperation base station set participating in cooperation with multiple base stations is determined, wherein the cooperation base station set comprises a service base station and a non-service base station; the difference value, between an incoherent united launch CQI value and a CQI shared value, obtained by the user equipment is fed back to the service base station according to one preset sub-band or each of multiple preset sub-bands. The channel quality indicator feedback method and the user equipment have the advantages of being easy to realize and low in expense, and can be applied to an LTE-A system and a 4G system.