Patent ID: 8462740

Claim:
A method for additionally generating a control channel for an enhanced communication system where a frame control header (FCH) and a MAP are placed within a transmission time interval, the method comprising: generating an additional control channel for the enhanced communication system at a position after the MAP within the transmission time interval; and inserting decoding information regarding a legacy control channel into at least one of the FCH, the additional control channel and a broadcast channel, wherein the decoding information indicates whether or not an MS supporting the enhanced communication system needs to decode the legacy control channel, wherein the method further comprises: generating at least one of an additional preamble or an additional FCH, wherein the additional preamble includes information regarding a start position of the additional control channel and the additional FCH includes a size of the additional control channel; and generating a new control channel at a position determined according to the additional preamble or at a predetermined position after the additional FCH.