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Non-overlapping 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 the problems of huge cost, large switching delay, and low transmission rate, so as to reduce the amount of installation work, protect the initial investment, and directly The effect of cost reduction

Inactive Publication Date: 2016-06-22
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 (CentralStation, referred to as CS) will be quite astonishing. huge cost

Method used

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  • Non-overlapping wireless coverage system supporting high-speed rail mobile communication and switching method thereof
  • Non-overlapping wireless coverage system supporting high-speed rail mobile communication and switching method thereof
  • Non-overlapping 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] like 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 management uni...

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Abstract

The invention discloses a non-overlapping wireless coverage system supporting high-speed rail mobile communication and a switching method thereof, and relates to the field of high-speed rail communication. The present invention uses a plurality of vehicle-mounted antennas to alternately communicate with RAU radiation electromagnetic micro-cells, and is designed according to the two aspects of determining the coverage distance of the RAU cell and determining the number of vehicle-mounted antennas. In this system, the ground management unit (110), ground access management unit (120) and optical wavelength management unit (130) are connected sequentially, the vehicle access control unit (210) is connected with the vehicle control unit (220), and the ground access management unit (120) is connected with the vehicle access control unit (210). The present invention moderately increases the complexity of the vehicle communication system to reduce the complexity of the ground communication system, and the cost advantage and performance advantage effect will be more obvious.

Description

technical field [0001] The invention relates to the field of high-speed railway communication, in particular to a non-overlapping wireless coverage system supporting high-speed railway mobile communication and a switching method thereof. Background technique [0002] Most of the current high-speed rail wireless communication technologies are based on relatively mature satellite communications, trunking mobile communications, and cellular mobile communications. There are serious problems such as coverage field strength, low coverage efficiency, multipath weakening, and frequent switching. Their application faces great difficulties and challenges. challenge. The main reason is that these traditional technologies were originally designed for personal mobile communication needs. The loss of the signal penetrating the closed compartment is relatively large, and the coverage of the large area system is relatively large for the narrow strip track. The car moves synchronously at hi...

Claims

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Application Information

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Patent Type & Authority Patents(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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