With the digital trunking technology independent innovation,the PDT will lead the tide

(June 21, 2010)

The GoTa, GT800 and the TD-SCDMA independent innovation and the effort of standardization In the digital trunking field of our country have urged to form one benign interaction new competitive situation to try to overtake each other in the trunking systems, including TETRA, the iDEN. This moment, one new standard shall soon produce, that is - - PDT (Professional Digital Trunking). 

In the digital trunking development trend, in addition to the typical simulation and digital trunking system of narrowband/quasi-wideband category, with the FDD CDMA of digital cellular mobile communications technology, the GoTa and GT800 based upon GSM and digital trunking system based on TDD technology all can give consideration to integration into voice and data as well as video evolution to applications of broadband multimedia.

In addition there is also a broadband wireless switching on technology cut-in directly through broadband multimedia video, forming just like McWiLL, MiWAVE, LTE-800 and ETSI and EIA/AIS jointly formulated MESA (mobile emergency security projects) etc. new systems; also have attached a system of isomerism broadband video capabilities, such as TETRA/TEDS+Wi/WiMAX-Mesh and PDT (public security digital trunking) system taking China's public security system as the main body.

On August 4, 2008, the Information and Communication Bureau under the Ministry of Public Security chaired to hold the seminar for police wireless communications digital development strategy in Shenzhen, founding the project Expert Committee, and the domestic manufacturers represented by the Hytera formulated the next generation digital trunking standard of public security system, which is the birth of PDT. It is based upon China’s public security market, considering different users’ demand at county level, municipality level, province level, and national level and the actual networking need. In earthquake, wind damage, and social security etc. emergency events, which can quickly access public security existing GIS scheduling platform, implementation of functions of flexible networking, efficient command scheduling, and high quality voice and data transfer, and has features of quickly response and security secret. The technical specifications also apply to public purposes, having the professional user groups with similar needs, corresponding equipment vendors and operators, such as military, ports, airports, etc.

Ma Xiaodong, Chief Engineer of Science and Technology Information Technology Bureau under the Ministry of Public Security said: "the PDT is a digital trunking standard with China’s full independent intellectual property rights, without foreign patent restrictions. Its appearance will promote the development speed and strength of domestic police communication industry, will also bring more suitable communication solutions and equipment to the public security system. ”