| 摘要 |
A wireless communication system and methods thereof are disclosed. A server (e.g., a push-to-talk (PTT) server) determines a multicast message to be a final multicast message for a multicast session having an indeterminate end time. The server inserts a flag into the multicast message, the inserted flag indicating that the flagged multicast message is a final multicast message for the multicast session. The server sends the flagged multicast message to a communication entity (e.g., a radio access network (RAN), a broadcast serving node (BSN), etc.) supporting the multicast session. The communication entity (e.g., RAN, BSN, etc.) receives the multicast message from the server. The communication entity determines whether the received multicast message includes a flag relating to multicast session termination. The communication entity releases at least one channel associated with the multicast session based on the determining step.
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