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Method for setting up mobile communication routing in rail transit carriage adopting cbtc system

A mobile communication and rail transit technology, which is applied in the field of mobile communication routing in rail transit carriages, can solve problems such as strong bandwidth requirements and large data traffic, achieve strong practicability, and avoid AP and MR interference effects

Active Publication Date: 2016-04-20
国家无线电监测中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as densely populated hotspots, stations and carriages have strong bandwidth requirements and large data traffic

Method used

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  • Method for setting up mobile communication routing in rail transit carriage adopting cbtc system
  • Method for setting up mobile communication routing in rail transit carriage adopting cbtc system
  • Method for setting up mobile communication routing in rail transit carriage adopting cbtc system

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. The following specific implementations are used to illustrate the present invention, but not to limit the scope of the present invention.

[0030] Such as figure 1 As shown, it is the overall flow of the method for setting up mobile communication routing in the rail transit compartment using the CBTC system provided by the present invention, and the implementation of the method of the present invention will be described in detail below.

[0031] Such as figure 2 As shown, the schematic diagram obtained by modeling the CBTC system.

[0032] figure 2 is a typical rail transit tunnel line, where AB represents the tunnel diameter, CD represents the train length, DE represents the train height, and EF represents the train width.

[0033] The trackside wireless access point AP is installed on the tunnel wall, and the heigh...

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Abstract

The invention discloses a method for mounting a mobile communication route inside a rail transport compartment adopting a CBTC (communication based train control) system. The mobile communication route (WCR) is regularly deployed inside the rail transport compartment. The method comprises the following steps: calculating lumped disturbance of the WCR to an AP (access point) or an MR (vehicle-mounted mobile receiving point within a given range) with a given range as to respective AP or MR; determining the maximal transmitting power P1 of the WCR when the WCR and the AP or MR work on a same channel and normal work of the AP or MR is not interfered; determining the minimal transmitting power P2 required by the WCR for normally serving a mobile communication user inside a section of compartment; lastingly broadcasting that the work channel of the AP or MR is occupied for a long period of time by the WCR when P1 is greater than or equal to P2, or else, adjusting the WCR and the AP or MP to work at a pilot frequency. By adopting the method, normal use of the WCR inside the compartment can be ensured; a data service is provided for the user; meanwhile, potential safety hazards such as interference of the WCR to the AP or MR of the CBTC can be also avoided. Therefore, the method has strong practicability.

Description

technical field [0001] The invention relates to the technical field of rail transit and mobile communication, and in particular to a method for setting up a mobile communication route in a rail transit carriage adopting a CBTC (Communication Based Train Control, automatic train control based on wireless communication) system. Background technique [0002] In the ground, platforms and tunnels of urban rail transit, many operating lines have achieved partial or full 2G / 3G network coverage. However, as densely populated hotspots, stations and carriages have strong bandwidth requirements and large data traffic. The introduction of WLAN coverage can effectively share the network load and capacity pressure of the network, and provide users with higher-speed broadband access services. [0003] Most of the urban rail transit adopts the communication-based train control (CBTC) system, in which the data communication subsystem (DCS) realizes the vehicle-ground two-way communication f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W74/08
CPCY02D30/70
Inventor 谭海峰王坦黄标李景春杨文翰陈京方箭
Owner 国家无线电监测中心