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1. CN106454934 - False alarm signal detection method and base station

Office
China
Application Number 201611036030.3
Application Date 22.11.2016
Publication Number 106454934
Publication Date 22.02.2017
Grant Number 106454934
Grant Date 09.07.2019
Publication Kind B
IPC
H04W 24/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports
H04W 74/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled access, e.g. random access, ALOHA or CSMA
H04L 12/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
02Details
26Monitoring arrangements; Testing arrangements
CPC
H04L 43/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
43Arrangements for monitoring or testing packet switching networks
16using threshold monitoring
H04W 24/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports ; ; Arrangements for measurement reports
H04W 74/0833
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
0833using a random access procedure
Applicants BEIJING NORTHERN FIBERHOME TECHNOLOGIES CO., LTD.
武汉虹信通信技术有限责任公司
Inventors NIE CONG
聂聪
ZHANG YUANYU
张元雨
MA SHUO
马硕
Agents 北京信远达知识产权代理有限公司 11304
Title
(EN) False alarm signal detection method and base station
(ZH) 一种虚警信号检测方法及基站
Abstract
(EN) The invention provides a false alarm signal detection method. The false alarm signal detection method is applied to a base station, and includes the steps: receiving a signal in a narrowband random access channel; traversing a subcarrier initial value of the narrowband random access channel, and obtaining a base time domain array corresponding to the subcarrier initial value whenever one subcarrier initial value is traversed; performing included angle operation processing on the signal and the base time domain array, and obtaining an included angle array; judging whether the included angle array is smaller than a decision threshold array; if the included angle array is smaller than the decision threshold array, determining that the signal is not a false alarm signal; and if when every subcarrier initial value of the narrowband random access channel is traversed, judging that the included angle array obtained through calculation is equal to or greater than the decision threshold array, and determining that the signal is a false alarm signal. If the false alarm signal detection method is used to detect a false alarm signal, a large amount of discrete Fourier transform is not required, and the computational complexity is small and the implementation complexity is low.
(ZH) 本发明提出一种虚警信号检测方法,应用于基站,该方法包括:接收窄带随机接入信道中的信号;遍历窄带随机接入信道的子载波初始值,每遍历到一个子载波初始值时,获取得到与子载波初始值相对应的基时域数组;将所述信号与所述基时域数组进行夹角运算处理,得到夹角数组;判断所述夹角数组是否小于所述判决门限数组;如果所述夹角数组小于所述判决门限数组,则确认所述信号不是虚警信号;如果遍历所述窄带随机接入信道的每一个子载波初始值时,均判断计算得到的夹角数组不小于所述判决门限数组,则确认所述信号是虚警信号。采用本发明技术方案检测虚警信号,不需要进行大量离散傅里叶变换,计算量小且实现复杂度低。