COMMUNICATION DEVICE FOR REDUCING LATENCY IN A MOBILE-ORIGINATED GROUP COMMUNICATION REQUEST

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 wake up time and the PTT latency by exchanging group call signaling even when mobile s (102, 104, 106) are dormant and no traffic channel is active. The method and apparatus provides for exchanging the group call signaling through the use o f the short data burst (SBD) message signaling. The method and apparatus provides for re-establishing dedicated traffic channels for the talker mobil e and the dormant listener mobiles advantageously in parallel.