Apparatus and method for iterative detection and decoding in wireless communication system

A method for iterative detection and decoding in a wireless communication system, the method comprising:

• determining a predetermined group to be updated in a first soft decision sequence, and transmitting detection control information of the determined group;
• extracting a predetermined received signal portion from a received signal sequence based on the detection control information;
• and
• generating a second soft decision sequence by updating a soft decision value of a portion corresponding to the determined group in the first soft decision sequence, based on the detection operation result of the extracted received signal portion.