Method for detecting faults of receiving channel

Abstract

The invention discloses a method for detecting faults of a receiving channel. The method comprises the following steps of: firstly, acquiring a value of the receiving bandwidth total power of each receiving channel; secondly, acquiring a relative value of the receiving bandwidth total power of each receiving channel according to the received value of the receiving bandwidth total power; and finally, comparing the relative value of the receiving bandwidth total power of each receiving channel with a preset threshold and recording the receiving channel having faults according to the comparison result. Since the preset threshold in the invention is determined according to the relative value of the receiving bandwidth total power of each receiving channel, when a certain receiving channel has faults which are not from a receiver, the value of the receiving bandwidth total power of the channel is compared with values of the receiving bandwidth total powers of other receiving channels; and a comparison value is inevitably and greatly different from a comparison value obtained by comparing various channels, so that the channel having the faults can be judged and further the defect that the faults which are not from the receiver cannot be detected in the prior art is overcome.

Description

technical field [0001] The invention relates to a fault detection method, in particular to a fault detection method of a receiving channel in a base station. Background technique [0002] Some common failures in the receiving channel of the base station, such as: antenna failure, connection failure between feeder cable and equipment, receiver failure, equipment internal connection failure, etc., will lead to cell paralysis or performance degradation. Channel failure will result in the loss of the receive diversity function and affect the system's receiving performance; if all the receiving channels fail, it will result in the loss of the receiving function of the entire cell, resulting in a paralysis of the cell. Therefore, when a fault occurs, an alarm must be generated in a timely and accurate manner to prompt the user. [0003] In the prior art, an alarm is judged by using an absolute value of a received channel RTWP (Received Total Wide band Power, total received bandwi...

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Problems solved by technology

[0004] However, because the existing technology is aimed at the detection of absolute levels, and the RTWP value is set according to the internal properties of the receiver, when the receiver is not faulty (such as disconnection of the antenna feeder connection, large insertion loss due to poor connection, etc.), due to the reception The performance of the receiver itself has not changed, so the RTWP value can still be maintained at a certain value, so the existing technology can only detect the internal fault of the receiver, but cannot detect the fault other than the receiver fault

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