Research on Realization of Group Call Service Base on TD-SCDMA Network

For the particularity of their work and mission, some departments need that the mobile communication system not only supports the point-to-point communication service but also can provide the group call service of the one-to-multipoint communication. In view of the fact that people need this particular communication mode, a design scheme of realizing group call service based on TD-SCDMA network is given. At the same time, the communication protocol is discussed. In order to reduce the impact to users of other business and improve the use of radio resource, the allocation mechanism of the group call service based on TD-SCDMA network is described and analyzed in detail. Finally, the result which is gotten by using MATLAB software shows the group call service based on TD-SCDMA network can be realized by adopting the rational and effective radio channel allocation mechanism. The application market of TD-SCDMA network with the group call service will be extended.