A system and method in a radio access network (RAN) (100) consisting of wireless access points (APs) and (RR4, RR5, RR6, and RR7) mobile stations (MSs) (102) that proactively sets up a multicast distribution tree (101). An indication is detected at a destination AP (RR6). The indication is that an MS (102) operating at an initial AP (RR5) is a member of a multicast group. The indication is via a device operating in the RAN (100). Responsive to detecting the indicating, a multicast distribution tree (101) is established for the multicast group that includes the destination AP (RR6).

 
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