Abstract: Provided is a scheduling method in a communication system. In the scheduling method, a Base Station (BS) gathers and stores its channel quality information from each of a plurality of Mobile Stations (MSs), and checks a Multi-Input Multi-Output (MIMO) scheme previously established between the BS and each MS. The BS selects a link table corresponding to each MS among a plurality of link tables previously included in the BS according to the checked MIMO scheme, and performs scheduling according to the stored channel quality information of each MS and the selected link table.

Abstract: Provided are an apparatus and a method for bandwidth requesting apparatus in a subscriber station in a broadcasting wireless communication system. The method includes checking whether there is an incomplete bandwidth request process, checking whether ranging allocation message with respect to a previous bandwidth request is received if there is the incomplete bandwidth request process and transmitting a bandwidth request code with respect to the new bandwidth request if the ranging allocation message with respect to the previous bandwidth request is received. Accordingly, because the new bandwidth request can be initiated even when the previous bandwidth request process is not terminated, the waste of the uplink resource can be prevented and the throughput of the subscriber station can be improved.