METHOD AND SYSTEM FOR RETRANSMITTING DATA IN A COMMUNICATION SYSTEM

摘要

A method and system for retransmitting data in a communication system are provided. In the retransmission method, a BS determines an automatic retransmission number for a multicast data frame according to the number of MSs of a multicast group, transmits the determined automatic retransmission number to the MSs of the multicast group, and repeatedly transmits the multicast data frame to the MSs until the number of transmissions of the multicast data frame is equal to the automatic retransmission number, irrespective of reception of information indicating whether the multicast data frame has been received from the MSs. Accordingly, resource consumption can be reduced and overhead can be decreased.