A METHOD OF INDICATING A CHANNEL AVAILABLE FOR SENDING UPLINK ACCESS REQUEST

摘要

A method of indicating a channel available for sending uplink access request: group system network side sends a indication message carrying a information about whether the up group call channel is available in the group's cell; listeners inside the group's cell determines whether the up group call channel is available according to the information carried by the received indication message, if yes, sending uplink access request over the up group call channel; otherwise, sending uplink access request over up channels. The method not only can indicate users in the group to use free up channels sending uplink access request at the group system network side that supports 1.0 channel realizing method, but also can solve the question that listeners can't send uplink access request over the up group call channel being used by the talker during the process of allocating a up group call channel for talker first and then reallocating dedicated up channel for speaking in group system network side employing 1.5 channel realizing method.