Title :
Analysis about impact of GSM-R cell handoff on data transfer delay in China Train Control System
Author :
Pang, Mengmeng ; Jiang, Wenyi ; Li, Jiyuan
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
China Train Control System level 3 (CTCS-3) transmits bi-directional track-train data via Global System Mobile for Railway (GSM-R) network, and GSM-R network should provide secure wireless environment to ensure train operation safety. GSM-R network handoff will cause a brief interruption of communication. If a train control message is on transmission during this interruption time, some message data units may be erroneously transmitted during the transmission interference and must be corrected by re-transmission. These re-transmissions result in a delay. This paper analysis´s the message transfer mechanism, summarizes some factors influence on the message of Movement Authority (MA) transfer delay during a handoff interference, obtains values of transfer delay of MA affected by handoff, and at last verifies that recovery period of GSM-R network required in QoS specification can meet the needs of train control data transmission.
Keywords :
cellular radio; data communication; quality of service; radiotelephony; railway communication; railways; China train control system; GSM-R cell handoff; QoS specification; bidirectional track train data transmission; data transfer delay; global system mobile; handoff interference; message transfer mechanism; movement authority transfer delay; railway network; secure wireless environment; train operation safety; Added delay; Data communication; Delay; Interference; Radio transmitters; Receivers; GSM-R; Movement Authority; handoff; recovery period; transfer delay;
Conference_Titel :
Electronics and Information Engineering (ICEIE), 2010 International Conference On
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-7679-4
Electronic_ISBN :
978-1-4244-7681-7
DOI :
10.1109/ICEIE.2010.5559732
