METHOD OF SUPPORTING A MULTICAST AND BROADCAST SERVICE IN WIRELESS ACCESS SYSTEM SUPPORTING RELAY

摘要

A method of providing a multicast and broadcast service (MBS) in a multi-hop relay system is disclosed. The method of providing a multicast and broadcast service (MBS) in a multi-hop relay system comprises transmitting a first message including allocation information of a MBS zone; and providing the MBS from the MBS zone indicated by the allocation information. In this case, a downlink frame includes a downlink access zone, the MBS zone, and a downlink relay zone, and the MBS zone is allocated from the downlink frame used in a base station and a downlink frame used in a relay station at the same time.