Method and device for standing-wave ratio detection

Abstract

The invention discloses a method and device for standing-wave ratio detection. The purpose is that the standing-wave ratio can be rapidly and accurately detected only by the utilization of a downlink service signal emitted by a TD-LTE base station system, and it is avoided that the base station system is extra disturbed by a specific training sequence. The method includes the steps that output power detection (OPD) data of the service signal emitted by the base station system and reaction power detection (RPD) data of a device to be detected inside a base station are captured; within a first preset bandwidth range, according to a preset data length, OPD feedback signals and RPD feedback signals in multiple time periods are respectively extracted; the spectral characteristics of the corresponding OPD feedback signal and the RPD feedback signal in each time period are determined, and the reflection coefficient of the base station system is determined according to the spectral characteristics of the corresponding OPD feedback signal and the RPD feedback signal in each time period; according to the reflection coefficient of the base station system, the standing-wave ratio of the base station system within the first preset bandwidth range is determined.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and equipment for detecting standing wave ratio. Background technique [0002] In the base station system, in order to ensure the good operation of the base station communication system, it is necessary to know the change of the standing wave ratio of the base station system in real time, so it is necessary to frequently detect the standing wave ratio of the base station system. The standing wave ratio detection in the base station system generally adopts a vector measurement method based on a frequency domain reflectometry (Frequency Domain Reflectometry, FDR) technology. [0003] Frequency domain reflectometer technology is a vector-based measurement technology. Its basic principle is to inject a set of sinusoidal frequency sweep signals into the cable under test, and the reflected signals generated by breakpoints or other reflection points on the cable u...

AI Technical Summary

Problems solved by technology

[0005] To sum up, in order to ensure the good operation of the TD-LTE base station system, the base station system needs to perform real-time and frequent detection of standing wave ratio, but the special training sequence used by the existing frequency domain reflectometer technology will cause serious damage to the communication system. Additional interference affects the transmission quality of the TD-LTE communication system

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