System of group communication and a method of group call...

Details System of group communication and a method of group call... System of group communication and a method of group call...

2004-06-02

2010-10-26

Gesesse, Tilahun (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S519000, C455S517000, C455S521000, C455S416000

Reexamination Certificate

active

07822432

ABSTRACT:
The present invention discloses a system of group communication and a method of group call processing based on CDMA2000 high-rate packet data network. The group communication system based on CDMA2000 high-rate packet data network includes: base station, packet control function module, packet data service node and AAA (authentication, authorization, accounting) server. The system further includes: multiple accessing terminals for making or responding the service request of group talk; group dispatching server for providing centralized control of group talk service, implementing the entire group talk service procedure from group user authentication to transmission of voice service package; group dispatch user side, which is an accessing gateway of group communication system, for providing signaling and service link between the base station and the group dispatching server. The present invention realizes the group communication system in the current high-rate packet data network, so that the group communication system satisfies the requirements of third generation communication, and adapts the development of the communication system.

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