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Vector standing wave ratio acquisition method, FPGA and remote radio frequency unit

An acquisition method, a technology of standing wave ratio, applied in the field of communication, can solve the problems of large amount of data, high resource requirements, complex calculation process and so on

Active Publication Date: 2019-01-04
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for obtaining vector standing wave ratio, FPGA and remote radio frequency unit of an embodiment, and the main technical problem to be solved is: when obtaining vector standing wave ratio according to the existing method, the amount of data required to be obtained is very large, and the calculation The process is very complex and the demand for resources is high

Method used

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  • Vector standing wave ratio acquisition method, FPGA and remote radio frequency unit
  • Vector standing wave ratio acquisition method, FPGA and remote radio frequency unit
  • Vector standing wave ratio acquisition method, FPGA and remote radio frequency unit

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Embodiment 1

[0034] In order to reduce the resource requirements for obtaining the VSWR and simplify the calculation process, this embodiment provides a method for obtaining the VSWR, see figure 1 , figure 1 A schematic flow chart of a vector standing wave ratio acquisition method provided in this embodiment, including:

[0035] S101: Obtain the maximum amplitude value of the periodic pulse transmission signal in each signal period;

[0036] It is worth noting that, in this embodiment, since the pulse transmission signal is periodic, only the maximum amplitude value in the first signal period can be obtained as the maximum amplitude value of the pulse transmission signal in each signal period It should be understood that, in this embodiment, the maximum amplitude value may also be reacquired once in each signal cycle, so as to ensure the accuracy of the maximum amplitude value obtained in the signal cycle. It should be understood that the acquisition of the maximum amplitude value of the...

Embodiment 2

[0079] In order to reduce the resource requirements for obtaining the vector standing wave ratio and simplify the calculation process, a vector standing wave ratio obtaining device is provided in this embodiment, see Figure 5 , Figure 5 A schematic structural diagram of a vector standing wave ratio acquisition device provided for this embodiment, including a data acquisition module 51 and a processing module 52, wherein:

[0080] The data acquisition module 51 is used to obtain the maximum amplitude value of the periodic pulse transmission signal in each signal period, and collect the maximum amplitude value of the reflected signal of the periodic pulse transmission signal in each signal period according to the preset acquisition frequency; And it is used to obtain the time delay corresponding to the periodic pulse transmission signal and the reflection signal in each signal cycle.

[0081] The processing module 52 is used to obtain the amplitude of the reflection coefficie...

Embodiment 3

[0105] see Image 6 , Image 6 A schematic structural diagram of a remote radio frequency unit provided for this embodiment, including a processor 61 and a field programmable gate array 62, wherein:

[0106] The field programmable gate array 62 is used for sending the periodic pulse transmission signal, and calculates the reflection coefficient of the periodic pulse transmission signal in each signal cycle;

[0107] The processor 61 is used to calculate the vector standing wave ratio of the periodic pulse transmission signal in each signal period according to the reflection coefficient of the periodic pulse transmission signal calculated by the FPGA 62 in each signal period.

[0108] Specifically, the structure of field programmable gate array 62 can refer to Figure 7 As shown, it includes: a signal transmitter 621 , an acquisition processing device 622 , and a reflection coefficient calculation device 623 . in,

[0109] The signal transmitter 621 is used to transmit the ...

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Abstract

The invention provides a vector standing wave ratio acquisition method, an FPGA and a remote radio frequency unit. By acquiring the maximum amplitude values of a pulse transmitting signal and a reflecting signal in each signal cycle, the amplitude value of a reflecting coefficient in each signal cycle is calculated directly; and by acquiring the delay of the pulse transmitting signal and the reflecting signal in each signal cycle, and in combination of a preset acquisition frequency, the phase of the reflecting coefficient in each signal cycle is calculated directly. Thus, the amount of data needed for vector standing wave ratio acquisition can be reduced, the calculation process is simplified, and the demands for resources are reduced. Besides, the scheme can be realized with the FPGA only, no digital signal processor thus needs to be additionally installed in the remote radio frequency unit, the circuit is simplified, the complexity of the remote radio frequency unit equipment is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a vector standing wave ratio acquisition method, an FPGA and a remote radio frequency unit. Background technique [0002] In communication technology, vector standing wave ratio detection is applied to the remote radio unit (RRU, Radio RemoteUnit) to solve the problem of standing wave ratio conversion (power amplifier port reflection coefficient to antenna standing wave ratio) in the scalar standing wave ratio detection scheme. And the error caused by the use of scalar calculations, resulting in a large error in the detection of the antenna standing wave ratio. In the existing method for detecting the VSWR, a large amount of relevant data of the transmitted signal and the reflected signal are collected by FPGA (Field Programmable Gate Array), and are handed over to DSP (Digital Signal Processor, digital signal processing device) to calculate the reflection coefficient. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/10H04B17/30
CPCH04B17/10H04B17/30H04B17/00
Inventor 张恩溯李虎虎陈凯
Owner ZTE CORP
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