Throughput test and analysis in an integrated TD-LTE based train ground communication system
Train ground communication systems for different applications are deployed and managed independently in current urban rail transit systems with Wireless Local Area Network (WLAN) technology. Investing and constructing communication infrastructures repeatedly not only waste substantial social resources but also bring many difficulties to maintain all these infrastructures. In this paper, we design an Integrated TD-LTE based train ground communication system which includes all the applications in the urban rail transit system and analyze its theoretical throughput. In order to test the throughput of the Integrated TD-LTE based train ground communication system, a real testing environment is set up. The testing environment simulates the real urban rail transit environment, including the real train and real equipment. Test results show that the designed Integrated TD-LTE based train ground communication system throughput satisfies urban rail transit communication requirement and has strong comprehensive bearing capability.