公开(公告)号：AU2003297844A1

公开(公告)日：2004-07-29

申请号：AU2003297844

申请日：2003-12-09

Applicant: MOTOROLA INC

Inventor： MAY NIGEL M ,  MARICK MARK A ,  SCHAEFER BRADLEY R ,  SHAUGHNESSY MARK L ,  SUGDEN WILLIAM J

IPC: H04L29/06 ,  H04W52/02 ,  H04W68/00 ,  H04W80/00 ,  H04W84/08 ,  H04W88/02 ,  H04Q7/28

Abstract: A proactive speculation method decreases the call setup time for private calls ( 200 ) and selective dynamic group calls ( 300 ). In a push-to-talk dispatch network ( 40 ) an originating mobile unit ( 10 ) sends a wake-up packet ( 54, 114 ) to the dispatch network ( 40 ). Prior to initiating the push-to-talk function, the target mobile units ( 20-30 ) receive a wake-up packet ( 68, 146-148 ) from network ( 40 ). Thereby, prior to establishing the push-to-talk function, each of the mobile units in the push-to-talk call have been coupled via RF links. If the originating mobile unit has a current IP address, direct wake-up packets ( 72 ) may be sent.

公开(公告)号：CA2506150A1

公开(公告)日：2004-07-22

申请号：CA2506150

申请日：2003-12-09

Applicant: MOTOROLA INC

Inventor： MARICK MARK A ,  MAY NIGEL M ,  SCHAEFER BRADLEY R ,  SHAUGHNESSY MARK L ,  SUGDEN WILLIAM J

IPC: H04L29/06 ,  H04W52/02 ,  H04W68/00 ,  H04W80/00 ,  H04W84/08 ,  H04W88/02 ,  H04Q7/28

Abstract: A proactive speculation method decreases the call setup time for private cal ls (200) and selective dynamic group calls (300). In a push-to-talk dispatch network (40) an originating mobile unit (10) sends a wake-up packet (54, 114 ) to the dispatch network (40). Prior to initiating the push-to-talk function, the target mobile units (20-30) receive a wake-up packet (68, 146-148) from network (40). Thereby, prior to establishing the push-to-talk function, each of the mobile units in the push-to-talk call have been coupled via RF links. If the originating mobile unit has a current IP address, direct wake-up packets (72) may be sent.