Method and device for diagnosing base station channel faults

A channel and fault technology, applied in the direction of wireless communication, electrical components, etc., can solve the problems of complex power detection fault location, inability to locate, and increase the complexity of the operator's work

Active Publication Date: 2017-10-31
ZTE CORP
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Problems solved by technology

However, when the power detected by the antenna port of the power detection is found to be abnormal, the meter can only measure the output power of the RRU antenna port, and cannot locate the problematic links inside the RRU transmission channel. Troubleshoot the faulty link in the power detection and determine the cause of the abnormal power detection, which will make the location of the power detection fault more complicated and increase the complexity of the work of the operator

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  • Method and device for diagnosing base station channel faults
  • Method and device for diagnosing base station channel faults
  • Method and device for diagnosing base station channel faults

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Embodiment Construction

[0045] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046]The invention provides a method for diagnosing channel failure of a base station. In the distributed base station system, the baseband unit BBU is connected with the remote radio unit RRU, and the RRU receives the baseband signal sent by the BBU and converts it into a normal working downlink signal, and uses the downlink signal as a detection signal, and detects the detection signal The power in the transmission channel and detection channel is used to diagnose RRU channel faults. The provided RRU channel includes a control board, a channel transceiver, an output power detection channel, a power amplifier and a filter. The conversion of optical fiber and data, baseband-IF conversion (including up-conversion and down-conversion) and power calibration are controlled through the control board; the downlink signal ...

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Abstract

The invention discloses a method for diagnosing a channel failure of a base station, comprising: receiving a baseband signal sent by a baseband unit BBU, converting the baseband signal into a downlink signal, and performing power calculation on the downlink signal to obtain a downlink signal power value; The downlink signal is transmitted, the transmit signal power value of the transmit channel is measured, and the forward signal power value of the downlink signal fed back to the detection channel is calculated; the transmit signal power value and the forward signal power value are respectively compared with the downlink The signal power value is calculated as a difference, and according to the obtained difference, it is judged whether the transmission channel and the detection channel are faulty. The invention also provides corresponding devices. The method for diagnosing the failure of the base station channel provided by the present invention can determine the fault link of the base station channel during the power detection, thereby determining the abnormal cause of the power detection, making the location of the power detection fault relatively simple, and reducing the operator's work Work complexity.

Description

technical field [0001] The present invention relates to the field of wireless communication systems, in particular to a method and device for diagnosing base station channel faults. Background technique [0002] Currently, in a TDD wireless communication system, a distributed base station including an RRU (Radio Remote Unit, remote radio unit) and a BBU (Base Band Unit, base band unit) is used. The RRU array channels in the base station are generally divided into single-channel or multi-channel configurations, which are used for indoor coverage and outdoor macro stations respectively. RRU array channels include: high frequency or intermediate frequency transceivers, radio frequency amplifiers (power amplifiers and low noise amplifiers, etc.), feeder cables and outdoor units. For the base station in actual operation, it is required to periodically detect the transmitted power of each transmission channel, so as to monitor the accuracy of the output power of the channel, so a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04H04W88/08
Inventor 赵伟兴
Owner ZTE CORP
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