1. A method to handle UL (Uplink) control information, comprising:a UE (User Equipment) is configured with a plurality of serving cells,
wherein each of the plurality of serving cells belongs to a PUCCH (Physical Uplink Control Channel) group, a first set of the serving cells controlled or scheduled by a same eNB is assigned to a same PUCCH group, and a second set of the serving cells controlled or scheduled by different a eNBs is assigned to a different PUCCH group, and
wherein for each PUCCH group, there is a specific UL serving cell for PUCCH transmission; and
the UE delivers the UL control information.