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Method and device of transmitting power detection in multi-carrier CDMA communication system

A code division multiple access and communication system technology, applied in the field of transmit power detection, can solve the problems of increased circuit implementation cost, complex algorithm, unfavorable large-scale use, etc., and achieve the effects of low cost, easy implementation and high flexibility

Inactive Publication Date: 2007-02-14
ZTE CORP
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Problems solved by technology

Although this method can meet the requirements for single-carrier and total power detection, it is followed by increased circuit implementation costs and complex algorithms, which are not conducive to large-scale use

Method used

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  • Method and device of transmitting power detection in multi-carrier CDMA communication system
  • Method and device of transmitting power detection in multi-carrier CDMA communication system
  • Method and device of transmitting power detection in multi-carrier CDMA communication system

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Embodiment Construction

[0026] The solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] The device of the present invention at least includes a frequency synthesis unit, a mixer, a narrowband intermediate frequency bandpass filter (surface acoustic wave filter or dielectric filter, etc.), a wave detector and a digital control unit. The frequency synthesis unit mainly provides the local oscillator signal required for down-conversion of the detection signal. The mixer mainly mixes the signal that needs to detect power with the local oscillator signal to generate an intermediate frequency signal of the required frequency. The main function of the narrowband intermediate frequency bandpass filter is Separate out the carrier signal that needs power detection. The detector mainly completes the conversion of the radio frequency signal to the analog voltage. The digital control unit mainly completes the digital processing...

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Abstract

This invention discloses a method and a device for testing emission power in the multi-carrier CDMA communication system including: a grouped frequency unit, a mixer, a narrow band IF band-pass filter, a detector and a digital control unit, in which, said grouped frequency unit provides local signals needed by frequency conversion of the detection signals to the mixer, which mixes the signals for testing power and the local signals to generate IF signals with the necessary frequency, said narrow band IF band-pass filter should meet the requirement of suppressing the adjacent carrier power to separate carrier signals used in power detection, said detector finishes the conversion from RF signal to analog voltage, said digital control unit finishes the digitalized process of analog voltage, control to the output frequency of the grouped frequency and process of detection result.

Description

technical field [0001] The present invention relates to the transmission power detection of code division multiple access system (CDMA), especially the device and method for the transmission power detection of multi-carrier code division multiple access system. Background technique [0002] Usually, in a code division multiple access radio frequency system, considering the cost factor, a large number of detectors are used to detect the transmission power, and one detector only detects the power of one carrier. The multi-carrier system is implemented by combining the single-carrier system at the output end, the carrier transmission power detection is completed in the single-carrier system, and the detection of the total power is realized in the combined system. In recent years, with the development of high-speed devices, it is now possible to complete the transmission of multiple CDMA signal carriers on one transmission channel. This highly integrated wireless communication d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04H04B17/00H04J13/00H04B17/327
Inventor 李向阳龙始华潘甲山陈志萍
Owner ZTE CORP
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