| 摘要 |
<p>A voice group-calling uplink protection method is disclosed in the present invention, in which an uplink detection message for detecting whether or not a talker releases the uplink resource and a response message of the uplink detection message are set; the method further includes the following steps: by sending the uplink detection message to the talker periodically and detecting whether or not the talker returns the response message of the uplink detection message, confirming whether or not the talker has released the uplink resource; when the talker has released the uplink resource, broadcasting the uplink resource free message on all the voice group-calling channels. A voice group-calling uplink protection system for implementing the above method is also disclosed in the present invention. In the case that the Unnumbered Acknowledgement (UA) frame is lost when the listeners compete for the uplink, the terminal has failure during the speaking of the talker, the uplink release message is lost when the talker releases the uplink and the like, the present invention can detect the situation and release the uplink resource occupied by the talker in time.</p> |
