Research On The Development Of Chinese Digital Trunking Communications System

Trunking communication system is dedicated dispatching communication system and multiple users (departments, groups) to share a group of wireless telecommunications road, and to dynamically utilize these dedicated channels to mobile communications systems. Trunking communication system possesses unique group scheduling features and respiratory function as well as the characteristic of fast call,therefore, the area of professional communication is playing an enormous role. Its main applications include the functional requirements of the higher scheduling command departments and enterprises.The importance has been greatly recognized by the departments of all classes of the government concerning of the figure set group setting up the mechanism of emergency response and the command and dispatch system after unexpected events such as "9.11", "SARS", "Bird Flu", earthquakes, tsunamis, hurricanes, typhoons and some others as well, and the expected events's success such as Olympic and Paralympic Games and other major activities.First of all, I would like to introduce the traits of digital trunking technology together with other communication systems' analysis and comparison of their differences as well, so that we can understand well the digital trunking communication's characteristics. Introducing the current cluster of domestic technical standards and summing up the advantages and disadvantages of a variety of technical standards. Secondly, analyzing the progressing situation of domestic and foreign digital trunking network, summing up the exsiting gap between total of China's digital trunking network and foreign digital trunking network as well as its underlying reasons at the same time. Thirdly,to investigate the successful model principally about Beijing and Asia's largest digital trunking network as well as the United States ',to analyze their successful experiences, to summarize the suitable experience with regard to the Net-share development of clusters number. Finally,the article gets a general view of the strengths, weaknesses, opportunities and threats regarding the digital cluster development in China through SWOT analysis. From the market size and business applications and so on, the article not only predicts the development trend of China's digital trunking,but also provides the fitted proposal for the progress of Chinese digital trunking network with learning the success of a total of Net experience from Beijing Digital Trunking as well as total American digital trunking network.