Standing wave detection method, standing wave detection device and base station

Abstract

A standing wave detection method, a standing wave detection device and a base station thereof are disclosed. The method comprises: sending baseband multitone signals (21); receiving the feedback signals of the baseband multitone signals from a feedback channel (22); obtaining a time-domain system transfer function by utilizing the feedback signals and the baseband multitone signals (23); obtaining a standing wave detection value according to the time-domain system transfer function (24). The method can obtain a standing wave ratio and the location of a cable fault point and realize the standing wave detection and the breakpoint locating of the antenna mouth cable without adding hardware costs and only with adding small amounts of computation. Moreover, various kinds of existing wireless products can realize the function through software updating. The maintenance and detection personnel can detect and locate a fault without carrying heavy and expensive instruments, and perform standing wave detection without taking apart the cable connector.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a standing wave detection method, a standing wave detection device and a base station. Background technique [0002] In the field of wireless communication technology, wireless communication products such as base stations need to check the quality of products through standing wave detection to ensure the signal quality in the communication process. [0003] In the prior art, the standing wave detection is implemented by a frequency domain reflectometry (Frequency Domain Reflectome-try, FDR) method or a phase-detection frequency-domain re-flectometry (PDFDR) method. Among them, FDR is also called frequency sweep reflectometer, which is used to send continuous and step sine wave, transmit through the discontinuous point of the transmission cable, and receive the transmitted step continuous wave; by detecting the difference between the transmitted signal and the refle...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor finds that the prior art has at least the following disadvantages: the standing wave detection requires additional hardware such as a coupler, a load, a mixer, an operational amplifier, and an analog-to-digital converter (Analog to Digital Converter, ADC) circuits, resulting in complex links and higher costs

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