一种用于主动探测4G终端存在的小基站自启动策略

2019-03-13 13:18:30黄巧芸陈东进覃莲
移动通信 2019年1期

黄巧芸 陈东进 覃莲

【摘  要】随着4G网络和移动终端的大规模使用,在特定场合对4G终端进行探测具有十分重要的意义,如地震救灾、考场作弊检测等。为了提高终端探测的效率,提出了一种主动式探测的小基站自启动策略。该策略是LTE基站根据网络侦听到的公网信息,自动选择最优的小区参数建立小区,以触发该基站覆盖范围内的移动终端快速重选到本小区。测试结果表明,该策略能够提高LTE基站覆盖区域用户的接入率,从而提高特定区域内4G终端的探测效率。

【关键词】LTE基站;自启动;重选;终端探测

doi:10.3969/j.issn.1006-1010.2019.01.017        中图分类号:TN929.531

文献标志码:A        文章编号:1006-1010(2019)01-0094-05

引用格式:黄巧芸,陈东进,覃莲. 一种用于主动探测4G终端存在的小基站自启动策略[J]. 移动通信, 2019,43(1): 94-98.

A LTE Base Station Self-starting Strategy for Active Detection of 4G Terminals

HUANG Qiaoyun1, CHEN Dongjin2, QIN Lian2

(1. Wuhan Post and Telecommunications Science Research Institute, Wuhan 430074, China;

2. Wuhan Hongxin Telecommunication Technologies Co., Ltd., Wuhan 430205, China)

[Abstract] With the large-scale use of 4G networks and mobile terminals, the detection of 4G terminals is of great significance in specific scenarios such as earthquake relief and cheating detection. In order to improve the efficiency of terminal detection, a self-starting strategy for active detection of small base stations is proposed. According to the information in the public network, LTE base station automatically selects an optimal cell parameter to establish a cell and triggers the mobile terminals in the coverage of the base station to rapidly reselect the cell. The test results show that the strategy can improve the access rate of users in the coverage of LTE base stations, and improve the detection efficiency of 4G terminals in a specific area.

[Key words]LTE base station; self-starting; reselection; terminal detection

1   引言

目前探测移动终端的方法分为被动式和主动式两种。被动式探测通过接收移动终端发送的信号获取其身份信息,缺点是无法探测到处于待机状态的终端,而大多数情况下终端是处于待机状态。主动式探测是利用探测基站并采用诱发技术,使移动终端主动与探测基站联系,以探测其存在。常用诱发技术是触发终端进行小区重选,有两种触发方式,一种是通过提高探测基站发射功率,增强本小区广播信道信号质量,使终端发起小区重选,从而连接到探测基站。另一种是通过设计干扰机,发射电磁波干扰终端所在基站,使该基站无法正常工作,迫使终端只能选择接入探测基站。干扰机设计复杂、能耗较大,而且对公网基站干扰较大,因此本文采用提高探测基站发射功率的方式。……

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