Patent ID: 8582523

Claim:
A method for transmitting by a base station a data channel comprising at least one data symbol on a downlink component carrier having a specific bandwidth in a radio communication system, wherein the downlink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, and wherein the downlink component carrier comprises a control region comprising at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol used for transmitting at least one control channel within the system band in a subframe, the method comprising: allocating the at least one data symbol to at least one transmission resource within the specific bandwidth in an increasing direction of a frequency index; and transmitting the data channel to a user equipment using the at least one transmission resource, wherein the at least one data symbol is allocated to the system band and the segment band, and the at least one data symbol allocated to the control region is punctured by the at least one control channel.