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Method and device for diagnosing base station channel faults

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

Active Publication Date: 2013-06-05
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 base station channel faults. The method comprises receiving base band signals sent by a base band unit (BBU), converting the base band signal into downgoing signals, and conducting power calculation on the downgoing signals to obtain downgoing signal power values; sending the downgoing signals, measuring sent signal power values of a sending channel, and calculating forward signal power values fed back by the downgoing signals to a detection channel; and conducting deviation calculation of the sent signal power values and the downgoing signal power values and deviation calculation of the forward signal power values and the downgoing signal power values, and judging if faults happen in the sending channel and the detection channel respectively according to the obtained difference values. The invention further provides a corresponding device. According to the method for diagnosing the base station channel faults, a link, where faults occur, of the base station channels can be judged when power detection is carried out, and therefore power detection abnormal reasons are determined, the power detection faults can be located simply, and work complexity of operation staff can be reduced.

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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IPC IPC(8): H04W24/04H04W88/08
Inventor 赵伟兴
Owner ZTE CORP
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