| 摘要 |
In a CDMA wireless communication system ( 200 ) a dispatch call can be established between two CDMA mobile stations ( 202, 226 ), or between other mobile stations and the CDMA mobile station, or between a CDMA mobile station and a computer ( 236 ) located outside of the wireless system. To reduce the delay normally association with call set up in a CDMA system, a dispatch processing network ( 128, 144 ) is provided in addition to a telephony switch ( 118 ). Dispatch calls and call set up requests are routed to the dispatch processing network from the radio access network ( 110 ) which includes base stations ( 204, 206 ). Once a dispatch call request is made, while the dispatch processing network begins setting up a traffic channel for the originating mobile communication device, the target is also paged, and upon responding, set up on a traffic channel. The concurrence of establishing radio links with the target and originating communication devices substantially reduces dispatch call set up time.
|
