Method and apparatus for reducing map overhead in a broadand wireless communication system

A Mobile Station (MS) operation method for reducing an overhead in a broadband wireless communication system, the method comprising:

• acquiring control information for initial transmission;
• requesting retransmission when there is a need for a retransmission request for the initial transmission;
• and
• acquiring information for the retransmission, the information comprising information that is a change of first information among the control information acquired at the initial transmission into second information needed at a retransmission time.

A method for reducing an overhead in a broadband wireless communication system, the method comprising:

• configuring a first information table for initial transmission and a second information table for retransmission;
• transmitting a corresponding index in the first information table, at the initial transmission time;
• and
• transmitting a corresponding index in the second information table, at the initial transmission time,
• wherein the corresponding index of the first information table is mapped with at least one or more pieces of control information for initial transmission, and the index of the second information table is mapped with control information for retransmission in place of the at least one or more pieces of control information mapped with the corresponding index of the first information table.