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Overlap-free wireless coverage system supporting high-speed rail mobile communication and switching method thereof

A mobile communication, non-overlapping technology, applied in wireless communication, electrical components, network planning, etc., can solve problems such as low transmission rate, large switching delay, and unsatisfactory service experience

Inactive Publication Date: 2014-01-15
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of experiments have shown that the existing standards are applied to high-speed rail scenarios, and there are three main problems to varying degrees: low transmission rate, =70ms; and frequent switching, >0.03 times / s; especially in The service experience effect is extremely unsatisfactory when multiple passengers make centralized calls
According to traditional thinking, in order to support seamless and smooth handover of user communication, a certain overlapping area needs to be reserved between adjacent coverages. Therefore, the number of deployed RAUs and central stations (Central Station, referred to as CS) will be quite astonishing. pay a huge cost

Method used

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  • Overlap-free wireless coverage system supporting high-speed rail mobile communication and switching method thereof
  • Overlap-free wireless coverage system supporting high-speed rail mobile communication and switching method thereof
  • Overlap-free wireless coverage system supporting high-speed rail mobile communication and switching method thereof

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Embodiment Construction

[0079] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0080] 1. System

[0081] 1. Overall

[0082] Such as figure 1 , the system includes a ground center base station 100 and a vehicle-mounted base station 200;

[0083] The ground central base station 100 includes a ground management unit 110, a ground access management unit 120, and an optical wavelength management unit 130;

[0084] The vehicle-mounted base station 200 includes a vehicle-mounted access control unit 210 and a vehicle-mounted control unit 220;

[0085] Its connection relationship is:

[0086] The ground management unit 110 , the ground access management unit 120 and the optical wavelength management unit 130 are connected in sequence, the vehicle access control unit 210 is connected to the vehicle control unit 220 , and the ground access management unit 120 is connected to the vehicle access control unit 210 .

[0087] 2. Function block

[0088] 1) Ground-base Co...

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Abstract

The invention discloses an overlap-free wireless coverage system supporting high-speed rail mobile communication and a switching method thereof, and relates to the field of high-speed rail communication. According to the invention, a number of vehicle-mounted antennas alternatively communicate with an RAU radiation electromagnetic micro cell, and then two aspects of the coverage distance of the RAU cell and the number of the vehicle-mounted antennas are determined. According to the system, a ground management unit (110), a ground access management unit (120) and a light wavelength management unit (130) are connected in turn; a vehicle-mounted access control unit (210) and a vehicle-mounted control unit (220) are connected; and the ground access management unit (120) and the vehicle-mounted access control unit (210) are connected. According to the invention, the complexity of a vehicle-mounted communication system is reasonably improved to reduce the complexity of a ground communication system, and the effects of the cost advantage and the performance advantage are obvious.

Description

Technical field [0001] The present invention involves the field of high -speed railway communication, especially a heavy -dwell wireless coverage system and its switching method that supports high -speed rail mobile communication. Background technique [0002] Most of the current high -speed rail wireless communication technology is based on more mature satellite communication, cluster mobile communications and cellular mobile communication. There are serious problems such as strong and weak coverage, low coverage efficiency, multi -diameter weakness, and frequent switching.challenge.The main reason is that these traditional technologies were originally designed for personal mobile communication needs. The loss of signal penetration densely closed the carriage. The area coverage of the region was not effective for the narrow belt rail.The car is moving at a high speed of the car, and the system switching requests are sudden.Therefore, it is more important and urgent to make speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/04H04W36/08
Inventor 杨春勇侯金陈少平石珊胡雯萱杨杰
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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