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Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument

A terminal test and radio frequency signal technology, applied in the field of communication, can solve the problems of unreasonable, convenient and accurate determination of radio frequency signal calibration parameters and high system cost, so as to improve reliability, reduce system cost and improve test efficiency

Inactive Publication Date: 2012-08-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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Problems solved by technology

[0049] The embodiment of the present invention provides a method and equipment for determining the radio frequency signal calibration parameters of a terminal test instrument, which solves the problem of high system cost and inability to determine the radio frequency signal calibration parameters reasonably, conveniently and accurately in the existing technical solutions question

Method used

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  • Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument
  • Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument
  • Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument

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Embodiment Construction

[0068] As mentioned in the background technology, the calibration parameter determination scheme proposed by the existing method 1 has high hardware costs, complex implementation methods, and low degree of automation, which is limited by application scenarios. Although method 2 proposes a more advanced processing solution , but it needs to rely on the interaction of air interface signaling. The transmission of air interface signaling during the RF cable connection calibration process will affect the corresponding measurement results and further affect the accuracy of the attenuation value.

[0069] In order to overcome such defects, the embodiment of the present invention proposes a method for determining the radio frequency signal calibration parameters of the terminal test instrument, using AT commands to automatically update the radio frequency signal calibration parameters (that is, the attenuation value) of the terminal test instrument, and then according to the correspondi...

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Abstract

The embodiment of the invention discloses a method and equipment for determining the radiofrequency signal calibration parameter of a terminal testing instrument. According to the technical scheme of the embodiment of the invention, the terminal testing instrument is used for instructing a terminal to return a power measured value of a radiofrequency signal through an AT command after transmitting the radiofrequency signal according to desired power and a current attenuation value, and updating the current attenuation value according to the power measured value, so that the radiofrequency signal calibration parameter of the terminal testing instrument is updated automatically by using the AT command, the terminal testing instrument can be used for calibrating power in the transmitting process of the radiofrequency signal according to a more accurate calibration parameter, the system cost is reduced, the testing efficiency is increased, and the credibility of the test result of a system is improved; and moreover, the method is not limited to a terminal protocol accordance testing instrument, and the calibration parameter of any instrument capable of interacting based on the AT command can be determined by using the method.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for determining radio frequency signal calibration parameters of a terminal test instrument. Background technique [0002] In the terminal protocol conformance test instrument, RF signal calibration is a very critical step. The purpose is to ensure that the RF output signal meets the basic requirements of the test, and the test results will not be inaccurate due to instrument errors. [0003] In the terminal protocol conformance test, the instrument often needs to maintain the power difference of multiple cells within a relatively small range. At this time, if the RF signal output of the instrument system is inaccurate, it may cause the terminal to be unable to reside in the desired location. cell, or the target cell cannot be reselected, causing the use case to fail. Therefore, regular power calibration is an important prerequisite to ensure the no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/11H04B17/21
Inventor 郑寅柴烨陈勇
Owner DATANG MOBILE COMM EQUIP CO LTD
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