Patent ID: 9402253
Filing Date: 2016-07-26
CPC Classification: H04L,H04W

Claim Text:
1. A method for transmitting and receiving at least one of control information and a response signal at a user equipment (UE) in a carrier aggregation based wireless communication system, the method comprising: configuring a first cell group having a primary cell (PCell); configuring a second cell group having one or more secondary cells (SCells); performing a procedure of transmitting and receiving at least one of specific cell-related control information and a response signal, wherein, if the first cell group and the second cell group are managed by the same base station, at least one of the control information and the response signal is transmitted and received on the first cell group or the second cell group, and wherein, if the first cell group and the second cell group are managed by different base stations, at least one of the control information and the response signal is transmitted and received only on one of the first cell group or the second cell group according to control information type.