SYSTEM AND METHOD FOR REQUESTING BANDWIDTH IN MULTI HOP RELAY COMMUNICATION SYSTEM

摘要

A system for requesting the bandwidth request in a multi-hop relay communication system and a method therefor are provided to reduce the overhead and latency by enabling a relay station to request the bandwidth allocation for a plurality of CIDs by using one bandwidth request header, thereby improving the QoS gain. A relay station detects the initial_RS_CID(802), constructs a GBR_RS_CID_MAP including the bit value of the detected initial_RS_CID(804), forms a GBR header including the constructed GBR_RS_CID_MAP(806), and then transmits the formed result to a base station(808). The method for allocating a bandwidth in the base station comprises the following steps. The base station receives the GBR header from the relay station, decodes the GBR_RS_CID_MAP included within the GBR header, and then assigns an R-UL band for each RS_CID corresponding to the bit value set as 1 among bit values of the GBR_RS_CID_MAP.