Patent ID: 8488508

Claim:
A method for reliable multicasting in a wireless communication system, comprising: transmitting a multicast frame having a header and addressed to a first multicast receiver address, wherein the first multicast receiver address maps to a first set of wireless devices and to a second set of wireless devices within a network area; and retransmitting a duplicate of the multicast frame addressed to a second multicast receiver address different from the first multicast receiver address, wherein the second multicast receiver address is signaled to at least one device of a multicast group, further wherein the second multicast receiver address maps to the first set of wireless devices and not to the second set of wireless devices, further comprising receiving a feedback associated with the multicast frame from at least one device of the multicast group, wherein the received feedback determines the number of duplicate retransmissions of the multicast frame, and wherein the duplicate retransmissions of the multicast frames use a sequence number of the retransmitted frames to distinguish multiple instances of retransmitted frames up to a threshold, and wherein the feedback is collected from a selected subset of one or more devices in the multicast group dynamically assigned on the basis of location within the network area.