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Ranging signal detection method and base station

A signal and base station technology, applied to the detection method of ranging signals and the field of base stations

Active Publication Date: 2015-03-04
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of false detection caused by only using power as the threshold for Ranging detection in related technologies, the present invention proposes a detection method for ranging signals, which can detect Ranging in a more reasonable way and reduce the probability of false detection

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  • Ranging signal detection method and base station
  • Ranging signal detection method and base station
  • Ranging signal detection method and base station

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Embodiment Construction

[0059] The present invention provides a multi-antenna combined Ranging detection method, which combines the multi-antenna data based on the maximum output signal-to-noise ratio / carrier-to-noise ratio based on the principle of maximum ratio combination technology (Maximal Ratio Combining, referred to as MRC), so as to The purpose of reducing the influence of channel fading and noise interference on the Ranging detection and improving the system performance is achieved. MRC is a relatively simple and effective multi-antenna combination technology, which can automatically adjust the weighting coefficients of each antenna data according to the instantaneous signal-to-noise ratio / carrier-to-noise ratio conditions of each antenna to track the characteristics of environmental changes, so it can make full use of each antenna data , uninterrupted implementation of signal processing. In addition, the MRC algorithm has the characteristics of simple implementation and stable performance, ...

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Abstract

A method for detecting ranging signals is disclosed. The method comprises: a base station receives signals from a mobile station, and according to the received signals, the time domain correlation value and carrier-to-noise ratio of each antenna of the base station are determined; the carrier-to-noise ratio of each antenna is normalized for getting corresponding weight coefficient of each antenna; and according to the weight coefficients and time domain correlation values of all the antennas, the power parameter of the base station is determined, and the power parameter is compared with the predetermined power threshold; if the power parameter is greater than or equal to the predetermined power threshold, it can be sure that a ranging signal is comprised in the received signals. The present invention also provides a base station. The present invention can decrease the effects on ranging detection caused by channel fade and noise interference, promote data utilization efficiency and anti-noise ability, and reduce misdetection probability, thus enhancing the system performance and the detection performance.

Description

technical field [0001] The invention relates to the field of communication, in particular to a detection method and a base station of a ranging signal. Background technique [0002] Orthogonal Frequency Division Multiplexing (OFDM for short) technology is a multi-carrier digital modulation technology and also a frequency multiplexing technology. The main idea of ​​OFDM technology is: divide the channel into several orthogonal sub-channels, convert high-speed data signals into parallel low-speed sub-data streams, and modulate them for transmission on each sub-channel. Compared with other modulation techniques and multiplexing techniques, OFDM technology has efficient spectrum utilization efficiency and good anti-multipath interference ability, so it has been widely used in broadcast audio and video fields and military and civil communication systems. The 802.16 series and 802.11 series standards with OFDM technology as the main physical layer technology have been widely used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04B17/00
CPCH04B7/0848H04B17/309
Inventor 曾璐张玉杰
Owner ZTE CORP