一种基于多天线簇的新型LTE室内定位系统

doi:10.11959/j.issn.1000-0801.2017037

电信科学 ›› 2017, Vol. 33 ›› Issue (3): 67-75.doi: 10.11959/j.issn.1000-0801.2017037

一种基于多天线簇的新型LTE室内定位系统

吕亚娟¹,刘珊²,胡荣贻²,张文浩²

¹ 吉林医药学院计算机系，吉林长春132013
² 中国联合网络通信有限公司网络技术研究院，北京100084

修回日期:2017-01-16 出版日期:2017-03-01 发布日期:2017-04-05
作者简介:吕亚娟（1982-），女，吉林医药学院计算机系讲师，主要研究方向为数据挖掘。|刘珊（1991-），女，中国联合网络通信有限公司网络技术研究院工程师，主要研究方向为无线移动通信技术、室内高精度定位技术等。|胡荣贻（1990 -），男，中国联合网络通信有限公司网络技术研究院工程师，主要研究方向为无线移动通信技术、室内高精度定位系统研发等。|张文浩（1989-），男，中国联合网络通信有限公司网络技术研究院工程师，主要研究方向为无线通信技术、室内高精度定位技术等。
基金资助:
国家重点研发计划基金资助项目(2016YFB0502000)

A novel LTE indoor location system based on multiple antenna clusters

Yajuan LV¹,Shan LIU²,Rongyi HU²,Wenhao ZHANG²

¹ Computer Science Department of Jilin Medical College, Changchun 132013, China
² Network Research Institute of China Unicom, Beijing 100084, China

Revised:2017-01-16 Online:2017-03-01 Published:2017-04-05
Supported by:
The National Key Research and Development Plan(2016YFB0502000)

摘要/Abstract

摘要：

随着移动互联网业务的迅速发展，位置服务需求越来越多样化，定位技术也变得越来越重要。LTE （long term evolution）室内蜂窝网络可以解决GPS（global positioning system）信号无法进入室内的问题，从而提供高精度的位置服务。LTE室内定位需要不同基站之间进行精确同步，这给室内网络部署带来了新的挑战。针对上述问题，提出了一种基于多天线簇的LTE新型无线定位系统，通过上行探测参考信号（sounding reference signal,SRS）获取信号到达时间差（time difference of arrival,TDOA）。该方法不需要簇间同步，可有效降低网络部署难度。其次，针对此系统设计了一种新的TDOA定位算法，可支持灵活的天线簇配置。最后，通过仿真及实验验证了该定位系统及算法的有效性，实验结果表明可实现米级室内定位精度。

关键词: LTE, 室内定位, SRS, TDOA

Abstract:

With the rapid development of mobile internet services, demands of location service are becoming more diversified, then the location technologies become the key to satisfy the requirements. Long term evolution (LTE) indoor networks can solve the problem that GPS (global positioning system) signal can't arrive in indoor and provide high precision location service. However, LTE indoor location system need high precision synchronization among different base stations, and this is a new challenge for indoor network deployment. To solve the problem, a new LTE wireless location system based on multiple antenna clusters was proposed. The system could get TDOA(time difference of arrival) through uplink SRS (sounding reference signal) and it didn't need synchronization between different clusters which reduced the difficulty of network deployment. Then, a new location algorithm was designed which could support flexible antenna configuration. Finally, simulations and experimental measurements were given to verify the efficiency of the system and algorithm. Results show that meter indoor location accuracy can be realized.

Key words: LTE, indoor location, SRS, TDOA

中图分类号:

TN929.5

吕亚娟,刘珊,胡荣贻,张文浩. 一种基于多天线簇的新型LTE室内定位系统[J]. 电信科学, 2017, 33(3): 67-75.

Yajuan LV,Shan LIU,Rongyi HU,Wenhao ZHANG. A novel LTE indoor location system based on multiple antenna clusters[J]. Telecommunications Science, 2017, 33(3): 67-75.

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编号	＜2m	＜3m	＜4m	最终定位误差/m
1	14.8%	58.6%	87.9%	2.50
2	69.1%	85.3%	92.7%	0.86
3	26.4%	77.0%	100%	3.00
4	59.4%	67.0%	72.5%	1.60
5	69.7%	85.4%	95.5%	1.10
6	85.4%	95.8%	100%	0.47
7	72.0%	88.0%	100%	0.53
8	49.5%	83.8%	95.0%	1.90
9	27.0%	80.0%	96.0%	1.90
10	61.2%	72.5%	80.0%	1.20
均值	53.5%	79.3%	92.0%	1.30

一种基于多天线簇的新型LTE室内定位系统

A novel LTE indoor location system based on multiple antenna clusters

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