Data transmission system in broadband wireless access system using band AMC and method thereof

1. A method for transmitting data bursts to a mobile subscriber station by a base station in a broadband wireless communication system, the method comprising the steps of:

transmitting a MAP information element (IE) to a mobile subscriber station; and

transmitting data bursts, allocated to the mobile subscriber station, to the mobile subscriber station according to the MAP IE,

wherein the MAP IF includes a type field indicating that a type of the MAP IF is a band Adaptive Modulation and Coding (AMC) type, a number of bands field indicating the number of bands allocated for the mobile subscriber station, a Band BITMAP field which is included when the number of band fields indicates a first value, and at least one band index field which is included when the number of bands field indicates a second value different from the first value, each of the at least one band index field indicating band index mapping to each of the number of bands allocated to the mobile subscriber station, and further

wherein the Band BITMAP field includes m bits that are mapped to m bands, respectively, and indicates whether the m bands are allocated to the mobile subscriber station, respectively, and still further

wherein a specific band includes n bins that comprise p subcarriers, and each of m, n and p is an integer equal to or greater than 1.

2. The method as claimed in claim 1 , wherein the MAP IE includes an Identifier (ID) field for indicating an ID of the mobile subscriber station.

3. A method for receiving data bursts from a base station by a mobile subscriber station in a broadband wireless communication system, the method comprising the steps of:

receiving a MAP information element (IE) from the base station; and

receiving data bursts allocated to the mobile subscriber station according to the MAP IE,

wherein the MAP IE includes a type field indicating that a type of the MAP LB is a band Adaptive Modulation and Coding (AMC) type, a number of bands field indicating the number of bands allocated for the mobile subscriber station, a Band BITMAP field which is included when the number of bands field indicates a first value, and at least one band index field which is included when the number of bands field indicates a second value different from the first value, each of the at least one band index field indicating band index mapping to each of the number of bands allocated to the mobile subscriber station, and further

wherein the Band BITMAP field includes m bits that are mapped to m bands, respectively, and indicates whether the m bands are allocated to the mobile subscriber station, respectively, and still further

wherein a specific band includes n bins that comprise p subcarriers, and each of m, n and p is an integer equal to or greater than 1.

4. The method as claimed in claim 3 , wherein the MAP IE includes an Identifier (ID) field for indicating an ID of the mobile subscriber station.

5. A system for transmitting data bursts in a broadband wireless communication system, comprising:

a mobile subscriber station; and

a base station for transmitting a MAP information element (IE) to the mobile subscriber station, and for transmitting data bursts allocated to the mobile subscriber station, to the mobile subscriber station according to the allocation information,

wherein the MAP IE includes a type field indicating that a type of the MAP IE is a band Adaptive Modulation and Coding (AMC) type, a number of bands field indicating the number of bands allocated for the mobile subscriber station, a Band BITMAP field which is included when the number of bands field indicates a first value, and at least one band index field which is included when the number of bands field indicates a second value different from the first value, each of the at least one band index field indicating band index mapping to each of the number of bands allocated to the mobile subscriber station, and further

wherein the Band BITMAP field includes m hits that are mapped to m bands, respectively, and indicates whether the m bands are allocated to the mobile subscriber station, respectively, and still further

wherein a specific band includes n bins that comprise p subcarriers, and each of m, n and p is an integer equal to or greater than 1.

6. The system as claimed in claim 5 , wherein the MAP IE includes an Identifier (ID) field for indicating an ID of the mobile subscriber station.

7. A system for receiving data bursts in a broadband wireless communication system, comprising:

a base station; and

a mobile subscriber station for receiving a MAP information element (IE) from the base station, and receiving data bursts allocated to the mobile subscriber station according to the MAP IE,

wherein the MAP IE includes a type field indicating that a type of the MAP IE is a band Adaptive Modulation and Coding (AMC) type, a number of bands field indicating the number of bands allocated for the mobile subscriber station, a Band BITMAP field which is included when the number of bands field indicates a first value, and at least one band index field which is included when the number of bands field indicates a second value different from the first value, each of the at least one band index field indicating band index mapping to each of the number of bands allocated to the mobile subscriber station, and further

wherein the Band BITMAP field includes m bits that are mapped to m bands, respectively, and indicates whether m bands are allocated to the mobile subscriber station, respectively, and still further

wherein a specific band includes n bins that comprises p subcarriers, and each of m, n and p is an integer equal to or greater than 1.

8. The system as claimed in claim 7 , wherein the MAP IE includes an IDentifier (ID) field for indicating an ID of the mobile subscriber station.