Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power controlling device and method for mobile communication system

A mobile communication system, power control technology, applied in the direction of transmission control/equalization, etc., can solve the problems of low power control accuracy, difficulty in accurately achieving control step size and accuracy of digital control attenuators, and achieve easy implementation and simplified circuits , cost reduction effect

Inactive Publication Date: 2008-07-30
北京瑞祺皓迪技术股份有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a device and method for power control of a mobile communication system, in order to overcome the problems existing in the prior art because the digital control attenuator is difficult to accurately achieve its nominal control step size and precision, and the The problem of low power control accuracy caused by

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power controlling device and method for mobile communication system
  • Power controlling device and method for mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] The basic technical idea of ​​the present invention is to realize the multiplication of the modulated quadrature up-conversion signal and the signal amplitude adjustment ratio inside the FPGA to replace the digital control attenuator to complete the signal attenuation. Specifically, the power attenuation value and signal The mapping table of the amplitude adjustment ratio, the power attenuation value is used as the address of the mapping table, the corresponding signal amplitude adjustment ratio is selected, and the result obtained by multiplying it with the power control signal containing the modulation information is sent through the DAC converter and the radio frequency processing circuit. To the power amplifier for amplified output, where instead of a 1-stage or 2-stage digitally controlled attenuator is determined by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power control device and a method for a mobile communication system, the method comprises that, power envelope type parameters and power attenuation parameters are determined by a power control unit; a power control signal containing modulation information is obtained by multiplying a power-time envelop curve which is obtained according to the power envelope type by a modulated quadrature upconversion signal; an attenuated modulated signal is obtained according to the power control signal and the power attenuation parameters; the modulated signal is sent to a power amplifier for amplification and output after being carried out the digital to analog conversion, the radio frequency mixing and the filter processing. The usage of the invention can not only improve the power control precision, but also can simplify the circuit, lower the cost and facilitate the realization.

Description

technical field [0001] The invention relates to the quantitative attenuation technology of high and intermediate frequency signals in a mobile communication system, in particular to a device and method for power control of a global mobile communication system. Background technique [0002] Attenuator is a commonly used electronic measurement equipment, it is usually inserted between the signal source and the load, used to adjust the size of the signal, to prevent overloading of the load circuit, as a new type of attenuator, the digital control attenuator has a wide range of applications in the electronic field application. Many electronic devices (for example, communication equipment, radar or wireless local area network equipment, etc.) need quantitative attenuation of high and intermediate frequency signals. The level will directly affect the performance indicators of these electronic devices and their performance. [0003] GSM (Global System for Mobile Communications), ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04B7/005
Inventor 马丽珍
Owner 北京瑞祺皓迪技术股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com