Study And Realization Of Digital Trunking Communication System Software Based On PSOS

For enhancing reaction speed on emergence and capability to risk, insuring durative of call in communication exception, it is very important to develop intelligent base station of digital trunking communication system based on GSM in command and schedule system.With the instance of design and realization of intelligent base station in digital trunking communication system, the structure, interface and communication protocols were analyzed.Task management, memory management and multi-tasks dispatch was researched in the software of intelligent base station, which based on pSOS. The software function, such as voice group call service among cells, location update, voice broadcast call service was realized in communication exception following the developing means for embed system.The realization of the board software of Transmission & Management Unit was introduced in details, which take into account the characteristic of trunking communication system and communication protocols synthetically. Based on analyzing the GSM protocol roughly, the different protocol process was implemented for multi-unit in network, which could cope with the communication exception.At last, black box test used in function test of intelligent base station was introduced, the corresponding suggestion for the problems in the system was provided. The significance of intelligent base station was presented and the direction of further research is proposed.