Design of TETRA-based dedicated radio communication system for urban rail transit

Terrestrial Trunked Radio (TETRA) based communication system can provide command dispatching, data transmission and telephone services on one platform. In Rail transit network, communication and short data transmission between fixed and mobile staff can be implemented through digital trunked radio communication system. In this paper, with the requirements of train operation specification, we give the design proposal of dedicated dispatching, network management software and mobile terminal equipments in secondary development mode, achieving a fast, efficient and flexible communication network.