Apparatus and method for transmitting information data in a wireless communication system

A system for transmitting and receiving allocation information of an adaptive antenna system (AAS) zone in a wireless communication system, comprising:

• a base station for dividing information data to be transmitted to a mobile station into control information and user data, applying different modulation and coding schemes to the control information and the user data, and transmitting the information data to the mobile station;
• and
• the mobile station for identifying the modulation and coding schemes of the information data received from the base station, and demodulating a total of the information data according to the modulation and coding schemes, or independently demodulating the control information and the user data according to the modulation and coding schemes.

A method for transmitting information in an adaptive antenna system (AAS) communication system, comprising the steps of:

• making, by a base station (BS), an AAS private down link (DL) MAP message including a Separate MCS Enabled field for indicating whether modulation and coding schemes are differently applied to a control information and an user data or not;
• and
• transmitting the AAS private DL MAP message to a mobile station (MS).