Title:
呼設定の遅延時間を短縮する方法
Document Type and Number:
Japanese Patent JP2006512017
Kind Code:
A
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.
Inventors:
Mei, Niger Em.
Marrick, Mark A.
Schaefer, Bradley Earl.
Shaughnessy, Mark Elle.
Sugden, William Jay.
Marrick, Mark A.
Schaefer, Bradley Earl.
Shaughnessy, Mark Elle.
Sugden, William Jay.
Application Number:
JP2004565343A
Publication Date:
April 06, 2006
Filing Date:
December 09, 2003
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04L29/06; H04M3/00; H04M11/00; H04W52/02; H04W80/00; H04W84/08; H04W88/02; H04W68/00
Foreign References:
| WO2002093953A1 | 2002-11-21 | |||
| WO2002093953A1 | 2002-11-21 |
Attorney, Agent or Firm:
Mamoru Kuwagaki