基于分布式LTE网络的室内定位系统

doi:10.11959/j.issn.1000-0801.2018185

电信科学 ›› 2018, Vol. 34 ›› Issue (6): 91-97.doi: 10.11959/j.issn.1000-0801.2018185

基于分布式LTE网络的室内定位系统

杨宇¹,陈明¹,刘大庆²

¹ 中国移动通信集团安徽有限公司，安徽合肥 230088
² 华为技术有限公司，浙江杭州 310052

修回日期:2018-05-24 出版日期:2018-06-01 发布日期:2018-07-03
作者简介:杨宇（1983-），男，中国移动通信集团有限公司安徽分公司网络部规划室经理、工程师，主要研究方向为GSM、TD-SCDMA、TD-LTE通信技术、室内外定位、HMI技术等。|陈明（1982-），男，中国移动通信集团有限公司安徽分公司工程师，主要研究方向为TD-LTE通信技术、信号仿真、室内外定位、网络优化技术等。|刘大庆（1985-），男，博士，华为技术有限公司工程师，主要研究方向为电磁场理论、天线、5G通信技术、室内定位技术等。

An indoor positioning system based on distributed LTE network

Yu YANG¹,Ming CHEN¹,Daqing LIU²

¹ China Mobile Group Anhui Co.,Ltd.,Hefei 230088,China
² Huawei Technologies Co.,Ltd.,Hangzhou 310052,China

Revised:2018-05-24 Online:2018-06-01 Published:2018-07-03

摘要/Abstract

摘要：

室内定位技术在商业和安全领域都有重要的应用，但目前仍存在定位精度低、部署成本高等问题，对此提出了一种基于LTE网络的室内定位系统，该系统定义在华为分布式皮基站之上，通过测量移动终端设备到多个接入点的参考信号强度（RSRP）或时延（ToA）进行定位。为克服LTE中上行功率控制对终端发射信号的影响，采用多信标联合解码，将绝对的信号强度或时延转换成信号强度差或时延差进行定位；该系统依托广泛部署的LTE网络，对处于无线网络连接态的终端设备提供无缝的定位服务，不依赖第三方软件，并且不会对网络性能造成影响。实验结果显示，在商场等室内场景下，使用时延差分（TDoA）技术的华为室内定位系统的平均定位精度达到3~5 m，显示出良好的应用潜力。

关键词: 室内定位, 分布式LTE网络, 分布式皮基站, 场强定位, 时延定位

Abstract:

Indoor positioning technology has important applications in the business and security fields,but there are still existing problems with low positioning accuracy and high deployment costs.An indoor positioning system based on long term evolution ( LTE ) network was introduced.The system was defined on the Huawei distributed pico base station and was used to measure the reference signal strength (RSRP) or time of arrival (ToA) of mobile terminals to multiple access points.To overcome the uplink power control in LTE network,the absolute RSRP or ToA was converted to differential values.The system relied on widely deployed LTE networks to provide seamless location services to terminal devices in a wireless network connection state.It didn’t rely on third-party software or affect network performance.The experimental results show that the average positioning accuracy of Huawei indoor positioning system using time difference of arrival (TDoA) can reach 3~5 m in indoor scenarios such as shopping malls,showing good application potential.

Key words: indoor positioning, distributed long term evolution network, distributed pico base station, field strength positioning, delay positioning

中图分类号:

TN966

杨宇,陈明,刘大庆. 基于分布式LTE网络的室内定位系统[J]. 电信科学, 2018, 34(6): 91-97.

Yu YANG,Ming CHEN,Daqing LIU. An indoor positioning system based on distributed LTE network[J]. Telecommunications Science, 2018, 34(6): 91-97.

图/表 5

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基于分布式LTE网络的室内定位系统

An indoor positioning system based on distributed LTE network

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