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A prototype filter determination method and determination device

A technology of prototype filter and determination method, which is applied in transmission monitoring, baseband system components, electrical components, etc., can solve the problems of high bit error rate of FBMC system and ignore the overall transmission performance of FBMC system, so as to reduce bit error rate, The effect of improving accuracy

Active Publication Date: 2020-04-10
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a prototype filter determination method and determination device to solve the problem in the prior art that when designing the prototype filter in the FBMC system, the overall transmission performance of the FBMC system is ignored, resulting in FBMC The problem of high bit error rate of the system

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  • A prototype filter determination method and determination device
  • A prototype filter determination method and determination device
  • A prototype filter determination method and determination device

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Embodiment 1

[0056] Such as figure 1 As shown, the prototype filter determination method provided by the embodiment of the present invention includes:

[0057] S101, acquiring interference factors affecting the bit error rate of the FBMC system;

[0058] S102. Establish an interference model according to the obtained interference factors, and use the minimized interference model as the optimization objective function of the prototype filter for reducing the bit error rate of the FBMC system;

[0059] S103, taking minimizing the frequency-domain out-of-band leakage power of the prototype filter as the first constraint condition of the optimization objective function;

[0060] S104, using the Nyquist criterion of the prototype filter as the second constraint condition of the optimization objective function;

[0061] S105, under the constraints of two constraints, solve the optimization objective function, and use the optimal solution of the optimization objective function as the time domai...

Embodiment 2

[0116] The present invention also provides a specific implementation of a device for determining a prototype filter. Since the device for determining a prototype filter provided by the present invention corresponds to the specific implementation of the aforementioned method for determining a prototype filter, the device for determining a prototype filter can perform the above-mentioned The process steps in the specific implementation of the method are used to achieve the purpose of the present invention. Therefore, the explanations in the specific implementation of the method for determining the prototype filter above are also applicable to the specific implementation of the prototype filter determination device provided by the present invention. In the present invention Details will not be described in the following specific implementation manners.

[0117] Such as Figure 4 As shown, the embodiment of the present invention also provides a device for determining a prototype f...

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Abstract

The invention provides a prototype filter determination method and a prototype filter determination device. The bit error rate of an FBMC system can be reduced. The method comprises the steps of acquiring interference factors influencing the bit error rate of an FBMC system are acquired; establishing an interference model according to the acquired interference factors, and taking the minimized interference model as an optimization objective function of a prototype filter for reducing the bit error rate of the FBMC system;taking the minimization prototype filter frequency domain out-of-band leakage power as a first constraint condition of the optimization objective function; taking the Nyquist criterion of the prototype filter as a second constraint condition of the optimization objective function; And under the constraint of two constraint conditions, solving the optimization objective function, and taking the optimal solution of the optimization objective function as the time domain coefficient of the prototype filter in the FBMC system. The invention relates to the field of wireless communication.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for determining a prototype filter. Background technique [0002] In recent years, due to the large-scale development of 5G communication technology, FBMC waveform technology, one of the components of 5G communication technology, has also received widespread attention. [0003] Different from the traditional Orthogonal Frequency Division Multiplexing (OFDM) waveform, the Filter Bank Multi-Carrier (FBMC) waveform uses a prototype filter with more flexible pulse shape settings, replacing the The design idea of ​​using a rectangular window filter in the OFDM waveform makes the structure design method of the FBMC system more diverse. In addition, in the FBMC system, the out-of-band leakage energy is strictly limited, and the interference between adjacent frequency bands is small. In the environment of discontinuous spectrum resources, the technical advantage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04B17/391H04B17/345H04B17/336H04B17/309
Inventor 杜利平王梓楠陈月云
Owner UNIV OF SCI & TECH BEIJING