Data scheduling method under LTE rail transit scene

A technology of data scheduling and rail transit, applied in wireless communication, wireless communication service, nan, etc., can solve problems such as business performance degradation and signal instability, achieve important market value, and achieve simple effects

Active Publication Date: 2017-05-31
WUHAN HONGXIN TECH DEV CO LTD
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  • Abstract
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Problems solved by technology

[0012] The present invention proposes a solution to solve the main service performance degradation caused by signal instability when high-speed trains switch serving cells in the LTE rail transit communication scenario

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  • Data scheduling method under LTE rail transit scene
  • Data scheduling method under LTE rail transit scene
  • Data scheduling method under LTE rail transit scene

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further details.

[0021] see figure 2 , through the analysis of the handover scenario, it is found that due to the wireless performance degradation caused by the handover, the data required by the various services of the vehicle-mounted UE cannot be satisfied at this time. The services are mainly IP, TCP, and HTTP, the most important of which should be For the HTTP service, in order to give priority to ensuring the performance of the HTTP service at this time, the embodiment of the present invention proposes a new data scheduling scheme suitable for rail tr...

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Abstract

The invention provides a data scheduling method under LTE rail transit scene. The method is characterized in that judgment is performed in advance by using TA fed back from UE according to a cartelistic that a vehicle terminal on a train has a fixed traveling path and mobility of the terminal has a regular rule, so that the UE enters a switching ready state, and the UE in such state utilizes a business marking mechanism to ensure that the most important business in UE businesses can be preferentially scheduled, and also utilizes an interaction mechanism to inform a target base station of the utilization of the same scheduling mode to ensure that the main business performance cannot be affected until the switching is completed. Finally the purpose of reducing a performance reduction risk caused by belated switching is achieved. The method provided by the invention is simple to implement, efficient, accurate, and unnecessary to invest with additional hardware investment, has important market value, and particularly has important significance for related industries in our country occupying a leading position internationally.

Description

technical field [0001] The present invention relates to the technical field of rail transit wireless communication, and more specifically, the present invention relates to a data scheduling processing method in an LTE rail transit scenario. Background technique [0002] As an important means and effective measures to solve traffic problems in big cities, urban rail transit system has the advantages of large transportation volume, fast speed, safety, punctuality, and comfort, and can drive the comprehensive development and utilization of urban land resources, which is of great significance to the long-term development of cities . At the same time, with the rapid development of information and communication technology to broadband, the demand for rail transit information construction is also increasing. As the key system of rail transit informatization, the train-to-ground wireless communication system of rail transit is mainly used to establish a two-way, stable, reliable, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/04H04W36/00H04W36/18H04L29/08
CPCH04W4/046H04L67/12H04W36/0016H04W36/0094H04W36/18
Inventor 姜琳峰印翀
Owner WUHAN HONGXIN TECH DEV CO LTD
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