Disclosed is a data transmission method for an MBS in a broadband wireless access system. The method includes the steps of constructing a Wibro frame by adding an FEC zone to a downlink portion of the Wibro frame by a radio access station, the FEC zone containing an FEC packet for performing a packet-based...http://www.google.de/patents/US8189546?utm_source=gb-gplus-sharePatent US8189546 - Data transmission/reception method for multicast and broadcast service in broadband wireless access system
