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Channel simulation device and method capable of expanding channel simulation bound

A channel simulation and channel expansion technology, which is applied in the field of channel simulation devices that can expand the range of channel simulation, can solve the problem of small dynamic range of channel scene level and achieve the effect of expanding the processing range

Inactive Publication Date: 2006-09-06
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0015] The object of the present invention is to provide a channel simulation device and method for extending the channel simulation range in view of the above-mentioned shortcomings of the prior art, thereby solving the problem of the small dynamic range of the channel scene level of the existing channel simulation device

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  • Channel simulation device and method capable of expanding channel simulation bound
  • Channel simulation device and method capable of expanding channel simulation bound
  • Channel simulation device and method capable of expanding channel simulation bound

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Embodiment Construction

[0049] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

[0050] Such as figure 2 As shown, according to the present invention, the channel simulation device of the present invention includes:

[0051] The down converter is used to convert the input radio frequency signal to an intermediate frequency with low frequency, which is convenient for subsequent analog-to-digital converter processing;

[0052] An analog-to-digital converter is used to convert the input intermediate frequency analog signal into a digital signal;

[0053] The digital baseband processor is used for performing digital signal processing on the digital signal output by the analog-to-digital converter, and completing channel simulation. The digital baseband processor also includes a digital processor and a signal separator, the digital processor is u...

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Abstract

The present invention provides an extensible channel simulation context channel. It contains down converter, analogue digital converter, digital baseband processor, rapid fading signal processor, slow fading signal processor and signal synthesizer. The present invention also provides an extensible channel simulation context method, including down converter down conversion radio-frequency signal to mid-frequency simulating signal, analogue digital converter converting mid-frequency to digital signal, baseband processing unit processing digital signal according to channel model, demultiplexer decomposing signal into slow fading signal and rapid fading signal, signal synthesizer synthesizing signal, thereby enlarging fading signal processing range to make channel simulator capable of supporting larger level dynamical channel scene.

Description

technical field [0001] The invention relates to network communication technology, in particular to a channel simulation device and method capable of extending the channel simulation range. Background technique [0002] In the communication system, the transmission channel of the signal is affected by various factors. For example, when the signal is transmitted in the wireless space, due to the very different transmission scenarios, such as the influence of the atmospheric effect and the ground effect, the receiver The received level fluctuates over time, a phenomenon known as fading. The size of the fading is related to the weather conditions and the length of the station distance. When testing the communication system in the laboratory, in order to assess the performance of the system, in the prior art, it is usually necessary to use a channel simulation device to simulate possible signal propagation channels, so as to test the fading in the future application scenarios in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/00H04L12/26
Inventor 李挺钊
Owner HUAWEI TECH CO LTD