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A data scheduling method in an LTE rail transit scenario

A data scheduling and rail transit technology, applied in wireless communication, vehicle wireless communication services, and used for large-scale transportation vehicles, etc., can solve problems such as large switching delay and service performance degradation, and achieve simple and important market value. Effect

Active Publication Date: 2021-01-15
WUHAN HONGXIN TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is that in the LTE rail transit communication scenario, the switching delay is too large when the high-speed train switches the service cell, and the switching is not timely and the main business performance is degraded

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  • A data scheduling method in an LTE rail transit scenario
  • A data scheduling method in an LTE rail transit scenario
  • A data scheduling method in an LTE rail transit scenario

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Embodiment Construction

[0028] 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.

[0029] 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 present invention proposes a data scheduling method in the LTE rail transit scenario, which is characterized by: according to the fixed running trajectory of the train on-board terminal and the characteristics of fixed mobility, the TA fed back by the UE is used to make a judgment in advance, so that the UE enters handover preparation. state, the UE uses the service marking mechanism in this state to ensure that the most important services in the UE's services can be scheduled first, and uses the interactive mechanism to notify the target base station to adopt the same scheduling method to ensure that the performance of the main services cannot be affected until the handover is completed. Influence. Ultimately, the risk of performance degradation caused by untimely switching is reduced. The invention is simple to implement, efficient and accurate, requires no additional hardware investment, has important market value, and is of great significance to my country's related industries taking a leading position in the world.

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 Patents(China)
IPC IPC(8): H04W4/42H04W36/00H04W36/18H04L29/08
CPCH04L67/12H04W36/0016H04W36/0094H04W4/046H04W36/00837
Inventor 姜琳峰印翀
Owner WUHAN HONGXIN TECH DEV CO LTD
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