Failure analysis method and device
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaolong Zhang, Jie Lv
Life of this patent
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Abstract
A failure analysis method and device, where the method includes obtaining a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, performing linear fitting on an effective portion of the frequency domain response amplitude to determine a channel slope value, and performing channel failure analysis according to the channel slope value. Failure analysis is performed according to the obtained channel slope value, and the channel slope value is a new failure analysis parameter. In this way, means of channel failure analysis increase, and channel failure analysis is more accurate.
Claims20
A failure analysis method, comprising:
- obtaining a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, the frequency domain response amplitude of the channel comprising an amplitude-frequency curve of a plurality of subcarrier frequencies of the HFC network and a plurality of amplitude values corresponding to the plurality of subcarrier frequencies;
- performing linear fitting on an effective portion of the frequency domain response amplitude to acquire a channel slope value;
- and
- performing channel failure analysis according to the channel slope value.
A failure analysis device, comprising:
- a memory;
- and
- a processor coupled to the memory and configured to:
- obtain a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, the frequency domain response amplitude of the channel comprising an amplitude-frequency curve of a plurality of subcarrier frequencies of the HFC network and a plurality of amplitude values corresponding to the plurality of subcarrier frequencies;
- perform linear fitting on an effective portion of the frequency domain response amplitude to acquire a channel slope value;
- and
- perform channel failure analysis according to the channel slope value.
A non-transitory computer readable medium configured to store a computer program product comprising computer executable instructions that when executed by a processor of a failure analysis device cause the processor to:
- obtain a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, the frequency domain response amplitude of the channel comprising an amplitude-frequency curve of a plurality of subcarrier frequencies of the HFC network and a plurality of amplitude values corresponding to the plurality of subcarrier frequencies;
- perform linear fitting on an effective portion of the frequency domain response amplitude to acquire a channel slope value;
- and
- perform channel failure analysis according to the channel slope value.
Dependencies are inferred from the claim text.