MULTICAST TRANSMISSION METHOD, SYSTEM AND COMMUNICATION STATION

摘要

In a multicast transmission system, the transmission of data is acknowledged by each receiving station to indicate whether or not a retransmission is required. For the retransmission, a transmitting station can select between a broadcast mode in which the retransmission is not addressed to a specific recipient, or a dedicated mode in which the retransmission is addressed to a specific recipient. The selection may be based on the number of receiving stations requiring a retransmission.