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NB-IOT (Narrow Band Internet of Things) cell reselection method and drive test equipment

A narrowband Internet of Things and cell reselection technology, applied in the field of communication, can solve problems such as reselection lag

Active Publication Date: 2020-03-06
CHINA MOBILE COMM LTD RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a narrowband Internet of Things NB-IOT cell reselection method and drive test equipment, which solves the problem of reselection lag when the drive test equipment performs cell reselection during the drive test process of the NB-IOT system

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  • NB-IOT (Narrow Band Internet of Things) cell reselection method and drive test equipment

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Embodiment Construction

[0038] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0039] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The invention provides an NB-IOT (Narrow Band Internet of Things) cell reselection method and drive test equipment. The drive test equipment comprises a frequency sweeping module and a terminal module, the method comprises the following steps: acquiring first cell signal intensity and second cell signal intensity, wherein the first cell signal intensity is measured by the frequency sweeping module, and the second cell signal intensity is measured by the terminal module; and when the first cell signal intensity and the second cell signal intensity satisfy a preset condition, executing a cell search process. When cell reselection is needed, cell reselection can be realized through a cell search process, the cell reselection speed can be increased, and the cell reselection efficiency can be improved, so that the problem of low evaluation accuracy caused by reselection lag can be avoided, and the accuracy of wireless network optimization evaluation of the NB-IOT system is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for reselecting a narrowband Internet of Things (NB-IOT) cell and a drive test device. Background technique [0002] In a narrowband Internet of Things (Narrow Band Internet Of Things, NB-IOT) communication system, when performing a coverage test on the NB-IOT, the NB-IOT test equipment can be used to perform a drive test. During the drive test, since the drive test equipment moves with the vehicle, a cell reselection process must be performed. Because the idle state measurement in the cell reselection process needs to analyze the system information, but in the NB-IOT system, the system information (System Information, SI) transmission period and transmission length are relatively long, the maximum period is 40.96s, and the maximum window is 16s , this will lead to a long time-consuming reselection, which can generally reach more than 10s. If the vehicle speed is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/04H04W36/30
CPCH04W36/04H04W36/30
Inventor 程远杰姜雪松邵春菊秦文丽
Owner CHINA MOBILE COMM LTD RES INST
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