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Circuit switched domain based system and method for transmitting GSM-R (Global System for Mobile Communication-Railway) train control data in real time

A GSM-R, real-time transmission technology, applied in electrical components, wireless communication, etc., can solve the problems of high call drop rate, difficult high-speed train communication, high reliability and high security, etc., to reduce complexity and reduce Call drop phenomenon and the effect of saving spectrum resources

Inactive Publication Date: 2011-07-13
BEIJING JIAOTONG UNIV
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Problems solved by technology

However, the current switching strategy easily leads to ping-pong switching, and the call drop rate is high, so it is difficult to fully guarantee the high reliability and high security of high-speed train communication

Method used

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  • Circuit switched domain based system and method for transmitting GSM-R (Global System for Mobile Communication-Railway) train control data in real time
  • Circuit switched domain based system and method for transmitting GSM-R (Global System for Mobile Communication-Railway) train control data in real time
  • Circuit switched domain based system and method for transmitting GSM-R (Global System for Mobile Communication-Railway) train control data in real time

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment of real-time transmission system of GSM-R train control data based on circuit domain

[0023] The structure schematic diagram of the real-time transmission system of GSM-R train control data based on the circuit domain of the present invention, the system includes: a distributed antenna array, a network side BTS (base transceiver station) and a train locomotive terminal; wherein, the distributed antenna array is erected on the railway Along the line, the same fixed frequency signal is provided for the train locomotive terminal, so that the circuit domain data transmission link of the train locomotive terminal is always in the connected state; the BTS on the network side is connected to the distributed antenna in a...

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Abstract

The invention discloses a circuit switched (CS) domain based system and method for transmitting GSM-R (Global System for Mobile Communication-Railway) train control data in real time. The system comprises a distributed antenna array, a network-side BTS (Base Transceiver System) and a train locomotive terminal; wherein the distributed antenna array is erected along the railway and used for providing signals of the same fixed frequency for the train locomotive terminal so as to ensure that a CS domain data transmission link of the train locomotive terminal is always in a connection state; the network side BTS is connected with distributed antennae in a wired manner and used for controlling the on / off states of the antennae so as to realize a network side switch function; and the train locomotive terminal is connected with the network side BTS through a wireless transmission link. The invention changes the traditional GSM-R handover strategy to ensure that a train always runs in a cell with a fixed frequency; and a handover function is controlled by one network side BTS so that a ping-pong handover phenomenon is eliminated and the communication stability and the safety reliability ofthe train are obviously enhanced.

Description

technical field [0001] The invention relates to the field of dedicated GSM-R railway digital mobile communication, in particular to a system and method for real-time transmission of GSM-R train control data based on a circuit domain. Background technique [0002] GSM-R is a mobile communication system in which cellular technology is applied to the railway environment. It retains the general structure of GSM. However, due to the different emphases of railway private network communication and mobile public network communication, the proportion of circuit-type data services in GSM-R is higher. Large, and enjoy high priority, such as real-time transmission of train control data between trains and grounds, generally throughout the entire train operation, and handover is very frequent. [0003] Handover refers to the process that the mobile station maintains the call when it moves from one serving cell to another while the call is in progress. Currently, the handover process in G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/24H04W36/30H04W60/00
Inventor 吴昊汤恒亮史昊一孟嘉温士雅
Owner BEIJING JIAOTONG UNIV
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