Patent ID: 8638732

Claim:
A method for operating a terminal in a broadband wireless communication system, the method comprising: receiving a group configuration message informing of a burst size set supported in a user group for a group resource allocation, which is to allocate resources to multiple users as a group; determining the burst size set supported in the user group based on the group configuration message; allocating, by a Base Station (BS), a resource to at least one terminal that has joined a group within a range of burst sizes included in the codebook; searching for at least one code corresponding to at least one allocated burst size; generating the resource allocation information comprising the found at least one code; generating a codebook for the group resource allocation using the burst size set; and receiving a group resource allocation message comprising resource allocation information generated based on the codebook, wherein the burst size set comprises a plurality of burst sizes, wherein each code of the codebook respectively indicates each burst size of the burst size set, and wherein the searching for the at least one code comprises, if a terminal to which an offset value is applied exists among terminals that have joined the group, searching for a code according to a correspondence relation between a separate code and a burst size depending on the offset value with respect to the terminal to which the offset value is applied.