Design and Implementation of NB-IoT System Random Access Process

ZHANG De-min; ZHANG Ying; ZHOU Shu-qi; SHU Qiang

doi:10.13756/j.gtxyj.2018.04.018

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Design and Implementation of NB-IoT System Random Access Process

- Design and Implementation of NB-IoT System Random Access Process
- Study on Optical communication Issue 4, Pages: 74-78(2018)
- 作者机构：
  
  重庆邮电大学重庆市移动通信技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2018.04.018
  CLC： TN929.5;TP391.44
- Published：2018，
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[1]张德民,张颖,周述淇,舒强.NB-IoT系统随机接入过程的设计与实现[J].光通信研究,2018(04):74-78.

ZHANG De-min, ZHANG Ying, ZHOU Shu-qi, et al. Design and Implementation of NB-IoT System Random Access Process. [J]. (4):74-78(2018)
[1]张德民,张颖,周述淇,舒强.NB-IoT系统随机接入过程的设计与实现[J].光通信研究,2018(04):74-78. DOI： 10.13756/j.gtxyj.2018.04.018.

ZHANG De-min, ZHANG Ying, ZHOU Shu-qi, et al. Design and Implementation of NB-IoT System Random Access Process. [J]. (4):74-78(2018) DOI： 10.13756/j.gtxyj.2018.04.018.

摘要

基于蜂窝网络的窄带物联网（NB-IoT）的随机接入过程相对于长期演进（LTE）而言

进行了大量简化

同时针对NB-IoT系统的相关特性也作了适当修改。文章详细分析了NB-IoT系统中基于竞争模式的随机接入过程

包括覆盖等级选择、资源配置和实现流程等;对NB-IoT新添加的挂起与恢复过程进行了系统研究

并设计了相应的流程图。基于测试及测试控制表示法第3版（TTCN-3）测试平台

搭建了一致性测试环境

对随机接入过程进行了测试

测试结果与预期结果相同

验证了其与标准的一致性。

Abstract

Cellular network based random access process of the Narrow Band Internet of Things（NB-IoT）is much simpler than Long Term Evolution（LTE）.It is also appropriately modified for its features.In this paper

the random access process based on competitive mode in NB-IoT system is analyzed in detail

including coverage level selection

resource allocation

implementation process and so on.At the same time

the newly added suspend and resume process of NB-IoT is systematically studied

and the corresponding flow chart is designed.Based on the TTCN-3 test platform

a conformance test environment is built

and the random access process is tested.The test results are the same as the expected results

which verify the consistency with the standard.

关键词

窄带物联网随机接入媒体接入控制无线资源控制

Keywords

NB-IoTrandom accessmedium access controlradio resource control

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Related Institution

College of Electronic Information Engineering, Hebei University

School of Communication and Information Engineering,CUPT

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Chongqing branch Company,Hangzhou Youhua Communication Design Institution Co.,Ltd.

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