Rail traffic scene-based service cell switch processing method

A technology for serving cells and rail transit, applied in wireless communication services, wireless communication, nan and other directions, can solve the problems of large handover delay and performance degradation, reduce handover delay, save scheduling signaling process, and reliable handover processing The effect of the plan

Inactive Publication Date: 2017-05-31
WUHAN HONGXIN TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0035] The technical problem to be solved by the present invention is that under the LTE rail transit communication scenario, the switching delay is too large when the high-speed train switches the service cell, and the performance degradation caused by the untimely switching

Method used

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  • Rail traffic scene-based service cell switch processing method
  • Rail traffic scene-based service cell switch processing method
  • Rail traffic scene-based service cell switch processing method

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specific Embodiment approach

[0062] see image 3 , the specific implementation is carried out according to the following process:

[0063] Step 1: The source eNode B performs measurement configuration on the UE, and the measurement results of the UE will be used to assist the source eNode B to make a series of decisions. The UE performs measurement reporting according to the measurement configuration, see image 3 "1. Measurement control and reporting". The reported information includes the signal strength of this cell and adjacent cells, and the geographical location information of the train.

[0064] Step 2: The source eNode B makes a pre-handover decision based on the information reported by the UE, see image 3 In "2. Pre-handover decision":

[0065] A critical point is set geographically in advance. When it is detected that the train leaves the cell and arrives at this point according to the geographical location information of the train, the judgment can trigger the UE pre-handover state; otherw...

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Abstract

The present invention provides a rail traffic scene-based service cell switch processing method. The method comprises the steps that a source eNode B performs measurement configuration on UE, and the UE reports the measurement according to measurement configuration; the source eNode B determines pre-switch according to train geographical position information reported by the UE, and triggers the UE to enter a pre-switch state, and the UE is in a continuous scheduling state and reports the measurement more frequently; the source eNode B determines switch according to a preset loose switching algorithm, and sends a switch request message; a target eNode B receives the request and then prepares for switching, and does not need to perform acceptance control; and the source eNode B transmits a switching command to the UE, and the UE receives the switching command and then executes synchronization with the target eNode B. The present invention mainly provides a faster, more stable and reliable rail traffic service cell switch processing method that has high market value.

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 method for processing handover of a serving cell in an LTE-based rail transit scenario. Background technique [0002] As an important means and effective measure to solve the traffic problems in big cities, the 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 the city . 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/04H04W36/00H04W36/18H04L29/08
Inventor 印翀蔡鑫
Owner WUHAN HONGXIN TECH DEV CO LTD
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