A CONTROLLER FOR REDUCING LATENCY IN A GROUP DORMANCY-WAKEUP PROCESS IN A GROUP COMMUNICATION NETWORK

摘要

A method and apparatus for reducing latency in a group communication network(100) provides for a significant reduction in the actual total dormancy wakeuptime and the PTT{XE"PTT"} latency by exchanging group call signaling even whenmobiles (102, 102, 106) are dormant and no traffic channel is active. Themethod and apparatus provides for exchanging the group call signaling throughthe use of the short data burst (SDB) message signaling. The method andapparatus provides for re-establishing dedicated traffic channels for thetalker mobile and the dormant listener mobiles advantageously in parallel.