CN102055539A - Automated calibration method and equipment for meter output signal - Google Patents
Automated calibration method and equipment for meter output signal Download PDFInfo
- Publication number
- CN102055539A CN102055539A CN2010106103234A CN201010610323A CN102055539A CN 102055539 A CN102055539 A CN 102055539A CN 2010106103234 A CN2010106103234 A CN 2010106103234A CN 201010610323 A CN201010610323 A CN 201010610323A CN 102055539 A CN102055539 A CN 102055539A
- Authority
- CN
- China
- Prior art keywords
- control module
- terminal
- main control
- test
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The embodiment of the invention provides an automated calibration method for a meter output signal, which comprises the following steps that a test terminal is connected with a radio frequency module of a terminal tester by a cable so as to establish a test platform; a main control module of the terminal tester indicates that a radio frequency signal control module commands the radio frequency module to output preset power; and the main control module of the terminal tester receives a power value fed back by the test terminal, indicates attenuating variation needed by a virtual attenuator according to the feedback power value and ensures that the output power of the terminal tester is equal to the preset power. The embodiment of the invention also provides a terminal tester. According to the scheme provided by the invention, calibration is carried out in an automated way, working efficiency is greatly improved, and the calibrating time can be effectively shortened compared with the traditional test scheme; and in the invention, a hardware attenuator is omitted, a test meter is changed from a frequency spectrograph to the test terminal, and the hardware cost is greatly reduced.
Description
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to the automatized calibration method and the equipment of instrument output signal.
Background technology
Developing rapidly of mobile communication makes terminal can possess function from strength to strength.In order to guarantee and the performance of standard terminal, need carry out testing protocol consistency to terminal.Testing protocol consistency is exactly by the test execution activity, checks the whether requirement of protocol compliant standard of tested entity.Uniformity test is a kind of " functional test ", and it certain realization of agreement is tested, thereby whether the realization of differentiating an agreement is consistent with pairing consensus standard according to the description of an agreement.
In terminal protocol uniformity test instrument, the radiofrequency signal calibration is a very critical step, its objective is to guarantee that its radio frequency output signal meets the basic demand of test, can not cause test result inaccurate because of instrumental error.In the terminal protocol uniformity test, instrument often need maintain the power difference of a plurality of sub-districts in the smaller scope, if the radiofrequency signal of instrument system output at this moment is inaccurate, then probably can cause the sub-district that terminal can't resident expectation, perhaps can't gravity treatment arrive Target cell, cause the use-case failure.Therefore regularly carrying out the calibration of power is exactly to guarantee the normal important prerequisite of using of test instrumentation.
At present, the generic calibration mode of terminal test instrument is generally adopted in the calibration of terminal protocol uniformity test instrument: utilize special-purpose frequency spectrum instrument to realize calibration in conjunction with adjustable attenuator, its principle is to have utilized the constant characteristic of instrument system radio-frequency line path loss, is the example explanation with Fig. 1:
As shown in Figure 1, the software and hardware module of participation RF calibration has:
A) master control module
Being software module, is the software kernels of terminal test instrument, and it has realized the major function of instrument; During normal use, indicate the desired output signal power of the current test instrumentation of radiofrequency signal control module by this module;
B) radiofrequency signal control module
Be software module,, drive radio-frequency module, the output desired signal power according to the indication of air protocol processing module;
C) radio-frequency module
Be hardware module, produce radiofrequency signal;
D) adjustable attenuator
Comprise hardware module and software module, the pad value size of software module regulated attenuator; Hardware module is finished the signal attenuation function;
E) frequency spectrograph
Hardware device is used for the radio frequency power output of measuring terminals test instrumentation.
Common calibration flow process is as follows:
1) primary module indication radiofrequency signal control module expects for system output signal intensity to be the radiofrequency signal of a;
2) radiofrequency signal exports gauge external to through the adjustable attenuator hardware components, and the initial value of attenuator is set to b;
3) link to each other with frequency spectrograph by the radio frequency cable, because the sum of errors line loss of test instrumentation inside, its real signal value output has not been a, learns that by the frequency spectrograph measurement present output signal strength is a ', and then (a-a ') is considered to the fixed error of test instrumentation;
4) calibration personnel is according to measurement result, by the adjustable attenuator software module, pad value is changed (a-a ');
5) reuse frequency spectrograph measuring instrument output signal, the signal value of this moment will become: a '+(a-a ')=a;
6) calibration finishes
The method is widely used in all kinds of terminal test instrument, such as the terminal test instrument such as CRTU-G of Rohde ﹠ Schwarz Representative Office at present.In addition, for the not high instrument of some precision, can the programmable attenuator that system is built-in be replaced by the step attenuator of common manual control, but its implementation there is no essential change.
Though above-mentioned precision is higher, yet have following significant disadvantages:
The hardware cost height, the implementation complexity; In order to reach the purpose of calibration power, need be in test instrumentation the in-built electrical controlled attenuator, and the general inner space of instrument is narrow and small, additionally increases hardware to have proposed requirements at the higher level for the indoor design of instrument, heat radiation undoubtedly, the while has also increased the purchase cost of hardware; Automaticity is low, needs the people for reading true measurement result, compare with desired value in the whole calibration process, and the occurrence of adjustable attenuator need manually be set, and can't realize the calibration of automation.If metered quantity is more, perhaps need in the test process frequently to calibrate, then whole work takes time and effort, efficient is extremely low.
Therefore, be necessary to propose a kind of otherwise effective technique scheme, solve the problem of terminal protocol uniformity test inconvenience.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, particularly by adding virtual attenuator software module, frequency spectrograph is replaced by commercial mobile phone or test terminal, between test instrumentation and terminal, set up the test macro that signaling is connected to form a closed loop, convenient realization terminal protocol uniformity test.
The embodiment of the invention has proposed a kind of automatized calibration method of instrument output signal on the one hand, may further comprise the steps:
The test terminal is connected by cable with the radio-frequency module of terminal tester, builds test platform;
The main control module indication radiofrequency signal control module of described terminal tester makes described radio-frequency module output predetermined power;
The main control module of described terminal tester receives the performance number of described test terminal feedback, indicates the required attenuation change amount of described virtual attenuator according to the performance number of described feedback, makes the power output of described terminal tester equal described predetermined power.
The embodiment of the invention has also proposed a kind of terminal tester on the other hand, comprises main control module, the radiofrequency signal control module, and virtual attenuator and radio-frequency module,
Described radio-frequency module is used for being connected with the test terminal by cable, builds test platform;
Described main control module, be used to indicate described radiofrequency signal control module output predetermined power and the described virtual attenuator of indication to adjust the attenuation change amount, and receive the performance number that feed back described test terminal, and indicate the required attenuation change amount of described virtual attenuator according to the performance number of described feedback;
Described virtual attenuator is used for adjusting pad value according to the attenuation change amount of described main control module indication, and pad value is sent to described radiofrequency signal control module;
Described radiofrequency signal control module is used for making the power of described radio-frequency module output equal described predetermined power according to the indication of described main control module and described virtual attenuator.
The such scheme that the present invention proposes, the characteristics of terminal protocol uniformity test instrument have been made full use of, the mode that adopts software and hardware to combine, cancellation adjustable attenuator hardware components in instrument, add a virtual attenuator software module, frequency spectrograph is replaced by commercial mobile phone or test terminal, setting up signaling between test instrumentation and terminal connects, make them form the test macro of a closed loop, utilize space interface signaling information order terminal that the current area signal measurements is reported test instrumentation, instrument is poor by measurement of comparison value and desired value, adjust the value of virtual attenuator software module, change the radiofrequency signal power output of terminal test instrument, finally finish the automation calibration of power of instrument.The such scheme that the present invention proposes adopts the automation mode to calibrate, and operating efficiency significantly improves, and the alignment time can shorten more than 95% with respect to existing testing scheme; The present invention has cancelled the attenuator of hardware, and measuring instrument changes to the test terminal by frequency spectrograph, and hardware cost reduces greatly.In addition, the such scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the software and hardware module diagram that participates in RF calibration in the prior art;
Fig. 2 is the method flow diagram of the auto-calibration of embodiment of the invention instrument output signal;
Fig. 3 participates in the software and hardware module diagram of RF calibration for the embodiment of the invention;
Fig. 4 is an embodiment of the invention terminal tester structural representation.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In order to realize the present invention's purpose, the present invention proposes a kind of method of auto-calibration of instrument output signal, may further comprise the steps: the test terminal is connected by cable with the radio-frequency module of terminal tester, builds test platform; The main control module indication radiofrequency signal control module of described terminal tester makes described radio-frequency module output predetermined power; The main control module of described terminal tester receives the performance number of described test terminal feedback, indicates the required attenuation change amount of described virtual attenuator according to the performance number of described feedback, makes the power output of described terminal tester equal described predetermined power.
As shown in Figure 2, the method flow diagram for the auto-calibration of embodiment of the invention instrument output signal may further comprise the steps:
S110: the test terminal is connected by cable with the radio-frequency module of terminal tester, builds test platform.
In step S110, at first need to erect test platform, the test terminal is connected by cable with the radio-frequency module of terminal tester.Wherein, the test terminal is special test terminal or commercial mobile phone.
For example, in gsm system, MS (Mobile Station, travelling carriage) will report the signal strength signal intensity of a deuterzooid sub-district and the signal strength signal intensity of 5 adjacent areas that MS measures to network side every 480ms; And in the UMTS system, after UE entered connection status, the cell information of configuration carried out the measurement of cell signal strength in can controlling according to the measurement that network side issues; Same, in the LTE in future system, UE also can measure the signal strength signal intensity of specific cell according to the configuration of network after entering connection status; These measurement results all can upload to network side in the mode of measurement report, and original idea is that switch the terminal sub-district and scheduling of resource provides the judgement foundation for network side carries out.Therefore, this type of test terminal or commercial mobile phone all are applicable to the scheme that the present invention proposes.Can make full use of above-mentioned characteristic, realize the calibration of power of terminal protocol uniformity test instrument.
Concrete calibration module of software and hardware schematic diagram as shown in Figure 3.
S120: the main control module indication radiofrequency signal control module of terminal tester makes radio-frequency module output predetermined power.
In step S120, the main control module of terminal tester indication radiofrequency signal control module makes radio-frequency module output predetermined power.In conjunction with shown in Figure 3, for example, when predetermined power is a, then main control module indication radiofrequency signal control module makes radio-frequency module output predetermined power a.
S130: the performance number of the main control module acceptance test terminal feedback of terminal tester, indicate the required attenuation change amount of virtual attenuator, make the power output of terminal tester equal predetermined power.
In step S130, the performance number of the main control module acceptance test terminal of terminal tester feedback is indicated the required attenuation change amount of virtual attenuator according to the performance number of feedback, makes the power output of terminal tester equal described predetermined power.
For example, indicate the required attenuation change amount of virtual attenuator may further comprise the steps according to the performance number of feedback:
When predetermined power is a, the performance number of the main control module acceptance test terminal of terminal tester feedback is designated as a ', and then to indicate virtual attenuator to adjust the power attenuation variable quantity be a '-a to main control module.
Thereafter, the radiofrequency signal control module makes radio-frequency module adjust power output according to power attenuation variable quantity a '-a.
In the above-described embodiments, the performance number of the main control module acceptance test terminal of terminal tester feedback may further comprise the steps:
The test terminal is by the signaling message of air interface, and the transmitting power of radio-frequency module is fed back to main control module via cable.
For example, complete calibration flow process is:
This calibration flow process is as shown below:
A) set up terminal protocol uniformity test instrument simulated environment, terminal to be measured is connected with the terminal tester cable;
B) main control module indication radiofrequency signal control module expectation power a;
C) virtual attenuator initial decay value is set to b;
D) the radiofrequency signal control module drives radio-frequency module according to the input value of main control module and virtual attenuator, and output power value is the radiofrequency signal of a ';
E) commercial mobile phone or test terminal signaling by eating dishes without rice or wine, the current demand signal power a ' that terminal is measured passes to main control module;
F) main control module is according to measured value, and the pad value of indicating virtual attenuator is changed to b-(a-a ') by initial value b;
G) commercial mobile phone or test terminal signaling, the current demand signal power a that terminal is measured by eating dishes without rice or wine " pass to main control module;
H) main control module is determined a "=a;
I) pad value of virtual attenuator fixedly installs into b-(a-a '), and this calibration operation finishes, and is performed until next calibration operation.
The said method that the present invention proposes, the characteristics of terminal protocol uniformity test instrument have been made full use of, the mode that adopts software and hardware to combine, cancellation adjustable attenuator hardware components in instrument, add a virtual attenuator software module, frequency spectrograph is replaced by commercial mobile phone or test terminal, setting up signaling between test instrumentation and terminal connects, make them form the test macro of a closed loop, utilize space interface signaling information order terminal that the current area signal measurements is reported test instrumentation, instrument is poor by measurement of comparison value and desired value, adjust the value of virtual attenuator software module, change the radiofrequency signal power output of terminal test instrument, finally finish the automation calibration of power of instrument.The said method that the present invention proposes adopts the automation mode to calibrate, and operating efficiency significantly improves, and the alignment time can shorten more than 95% with respect to existing testing scheme; This method has been cancelled the attenuator of hardware, and measuring instrument changes to the test terminal by frequency spectrograph, and hardware cost reduces greatly.This method of testing is applicable to GSM, also is applicable to the UMTS and following LTE test, only needs its main control module to support space interface signaling can realize alternately.In addition, the said method that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
As shown in Figure 4, the invention allows for a kind of terminal tester, comprise main control module 100, radiofrequency signal control module 200, virtual attenuator 400 and radio-frequency module 300.
Wherein, radio-frequency module 300 is used for being connected with the test terminal by cable, builds test platform.
For example, the performance number of main control module 100 acceptance test terminals feedback may further comprise the steps:
The test terminal sends the transmitting power of radio-frequency module 300 by the signaling message of air interface to main control module 100 via cable.
Virtual attenuator 400 is used for adjusting pad value according to the attenuation change amount of main control module 100 indications, and pad value is sent to radiofrequency signal control module 200.
For example, main control module 100 indicates virtual attenuator 400 required attenuation change amounts may further comprise the steps according to the performance number of feedback:
When predetermined power is a, the performance number of main control module 100 acceptance test terminals feedback is a ', and it is a '-a that the virtual attenuator 400 of main control module 100 indications is adjusted the power attenuation variable quantities.
Radiofrequency signal control module 200 is used for making the power of radio-frequency module 300 outputs equal predetermined power according to the indication of main control module 100 and virtual attenuator 400.
For example, radiofrequency signal control module 200 makes radio-frequency module 300 adjust power output according to the power attenuation variable quantity a '-a of virtual attenuator 400 indications.
For example, complete calibration flow process is:
A) set up terminal protocol uniformity test instrument simulated environment, terminal to be measured is connected with the terminal tester cable;
B) main control module 100 indication radiofrequency signal control modules 200 expectation power a;
C) virtual attenuator 400 initial decay values are set to b;
D) radiofrequency signal control module 200 drives radio-frequency module 300 according to the input value of main control module 100 and virtual attenuator 400, and output power value is the radiofrequency signal of a ';
E) commercial mobile phone or test terminal signaling by eating dishes without rice or wine, the current demand signal power a ' that terminal is measured passes to main control module 100;
F) main control module 100 is according to measured value, and the pad value of indicating virtual attenuator 400 is changed to b-(a-a ') by initial value b;
G) commercial mobile phone or test terminal signaling, the current demand signal power a that terminal is measured by eating dishes without rice or wine " pass to main control module 100;
H) main control module 100 is determined a "=a;
I) pad value of virtual attenuator 400 fixedly installs into b-(a-a '), and this calibration operation finishes, and is performed until next calibration operation.
The above-mentioned terminal tester that the present invention proposes, the characteristics of terminal protocol uniformity test instrument have been made full use of, the mode that adopts software and hardware to combine, cancellation adjustable attenuator hardware components in instrument, add a virtual attenuator software module, frequency spectrograph is replaced by commercial mobile phone or test terminal, setting up signaling between test instrumentation and terminal connects, make them form the test macro of a closed loop, utilize space interface signaling information order terminal that the current area signal measurements is reported test instrumentation, instrument is poor by measurement of comparison value and desired value, adjust the value of virtual attenuator software module, change the radiofrequency signal power output of terminal test instrument, finally finish the automation calibration of power of instrument.The above-mentioned terminal tester that the present invention proposes adopts the automation mode to calibrate, and operating efficiency significantly improves, and the alignment time can shorten more than 95% with respect to existing testing scheme; Terminal tester has been cancelled the attenuator of hardware, and measuring instrument changes to the test terminal by frequency spectrograph, and hardware cost reduces greatly.This terminal tester is applicable to GSM, also is applicable to the UMTS and following LTE test, only needs its main control module to support space interface signaling can realize alternately.In addition, the equipment that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
Those skilled in the art are appreciated that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the automatized calibration method of an instrument output signal is characterized in that, may further comprise the steps:
The test terminal is connected by cable with the radio-frequency module of terminal tester, builds test platform;
The main control module indication radiofrequency signal control module of described terminal tester makes described radio-frequency module output predetermined power;
The main control module of described terminal tester receives the performance number of described test terminal feedback, indicates the required attenuation change amount of described virtual attenuator according to the performance number of described feedback, makes the output signal power of described terminal tester equal described predetermined power.
2. the method for claim 1 is characterized in that, indicates the required attenuation change amount of described virtual attenuator may further comprise the steps according to the performance number of described feedback:
When described predetermined power is a, the performance number that the main control module of described terminal tester receives described test terminal feedback is a ', and it is a '-a that described main control module indicates described virtual attenuator to adjust the power attenuation variable quantity.
3. method as claimed in claim 2 is characterized in that, and is further comprising the steps of:
Described radiofrequency signal control module makes described radio-frequency module adjust power output according to described power attenuation variable quantity a '-a.
4. the method for claim 1 is characterized in that, the performance number that the main control module of described terminal tester receives described test terminal feedback may further comprise the steps:
Described test terminal is by the signaling message of air interface, and the transmitting power of described radio-frequency module is fed back to described main control module via described cable.
5. as one of any described method of claim 1 to 4, it is characterized in that described test terminal is special test terminal or commercial mobile phone.
6. a terminal tester is characterized in that, comprises main control module, the radiofrequency signal control module, and virtual attenuator and radio-frequency module,
Described radio-frequency module is used for being connected with the test terminal by cable, builds test platform;
Described main control module, be used to indicate described radiofrequency signal control module output predetermined power and the described virtual attenuator of indication to adjust the attenuation change amount, and receive the performance number that feed back described test terminal, and indicate the required attenuation change amount of described virtual attenuator according to the performance number of described feedback;
Described virtual attenuator is used for adjusting pad value according to the attenuation change amount of described main control module indication, and pad value is sent to described radiofrequency signal control module;
Described radiofrequency signal control module is used for making the power of described radio-frequency module output equal described predetermined power according to the indication of described main control module and described virtual attenuator.
7. terminal tester as claimed in claim 6 is characterized in that, described main control module indicates the required attenuation change amount of described virtual attenuator may further comprise the steps according to the performance number of described feedback:
When described predetermined power is a, the performance number that described main control module receives described test terminal feedback is a ', and it is a '-a that described main control module indicates described virtual attenuator to adjust the power attenuation variable quantity.
8. terminal tester as claimed in claim 7 is characterized in that, also comprises:
Described radiofrequency signal control module makes described radio-frequency module adjust power output according to the power attenuation variable quantity a '-a of described virtual attenuator indication.
9. terminal tester as claimed in claim 6 is characterized in that, the performance number that described main control module receives described test terminal feedback may further comprise the steps:
Described test terminal sends the transmitting power of described radio-frequency module by the signaling message of air interface to described main control module via described cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106103234A CN102055539A (en) | 2010-12-28 | 2010-12-28 | Automated calibration method and equipment for meter output signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106103234A CN102055539A (en) | 2010-12-28 | 2010-12-28 | Automated calibration method and equipment for meter output signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102055539A true CN102055539A (en) | 2011-05-11 |
Family
ID=43959511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106103234A Pending CN102055539A (en) | 2010-12-28 | 2010-12-28 | Automated calibration method and equipment for meter output signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102055539A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395151A (en) * | 2011-06-29 | 2012-03-28 | 中兴通讯股份有限公司 | Test method, system and device of mobile terminal switching |
| CN102638320A (en) * | 2012-05-09 | 2012-08-15 | 大唐移动通信设备有限公司 | Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument |
| CN103856277A (en) * | 2014-03-24 | 2014-06-11 | 武汉威士讯信息技术有限公司 | Automatic testing system and method for measuring ZigBee radio frequency performance |
| CN104853021A (en) * | 2015-04-15 | 2015-08-19 | 为准（北京）电子科技有限公司 | Method and device for calibrating mobile phone production test system |
| CN109031225A (en) * | 2018-08-22 | 2018-12-18 | 华清瑞达（天津）科技有限公司 | The Calibration Method and system of microwave components |
| CN110620594A (en) * | 2019-10-22 | 2019-12-27 | 西安九正科技有限公司 | Signal generator |
| CN111061670A (en) * | 2019-11-20 | 2020-04-24 | 福建北峰通信科技股份有限公司 | Method for optimizing terminal program space through virtual serial port protocol conversion |
| CN112994807A (en) * | 2021-02-05 | 2021-06-18 | 成都中科四点零科技有限公司 | Automatic calibration system and method for signal source |
| CN113411143A (en) * | 2021-06-28 | 2021-09-17 | 上海创远仪器技术股份有限公司 | Power fitting processing method, system, device, processor and storage medium for eliminating uncertainty of numerical control attenuator in signal source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719736A (en) * | 2005-07-19 | 2006-01-11 | 中兴通讯股份有限公司 | Method for correcting power |
| CN101103564A (en) * | 2005-01-12 | 2008-01-09 | 美商亚瑟罗斯通讯股份有限公司 | Calibration using range of transmit powers |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
| CN101729181A (en) * | 2006-06-15 | 2010-06-09 | 北京北方烽火科技有限公司 | Calibration method of TD-SCDMA signal generating device |
-
2010
- 2010-12-28 CN CN2010106103234A patent/CN102055539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101103564A (en) * | 2005-01-12 | 2008-01-09 | 美商亚瑟罗斯通讯股份有限公司 | Calibration using range of transmit powers |
| CN1719736A (en) * | 2005-07-19 | 2006-01-11 | 中兴通讯股份有限公司 | Method for correcting power |
| CN101729181A (en) * | 2006-06-15 | 2010-06-09 | 北京北方烽火科技有限公司 | Calibration method of TD-SCDMA signal generating device |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395151A (en) * | 2011-06-29 | 2012-03-28 | 中兴通讯股份有限公司 | Test method, system and device of mobile terminal switching |
| CN102638320A (en) * | 2012-05-09 | 2012-08-15 | 大唐移动通信设备有限公司 | Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument |
| CN103856277A (en) * | 2014-03-24 | 2014-06-11 | 武汉威士讯信息技术有限公司 | Automatic testing system and method for measuring ZigBee radio frequency performance |
| CN104853021A (en) * | 2015-04-15 | 2015-08-19 | 为准（北京）电子科技有限公司 | Method and device for calibrating mobile phone production test system |
| CN109031225A (en) * | 2018-08-22 | 2018-12-18 | 华清瑞达（天津）科技有限公司 | The Calibration Method and system of microwave components |
| CN110620594A (en) * | 2019-10-22 | 2019-12-27 | 西安九正科技有限公司 | Signal generator |
| CN111061670A (en) * | 2019-11-20 | 2020-04-24 | 福建北峰通信科技股份有限公司 | Method for optimizing terminal program space through virtual serial port protocol conversion |
| CN112994807A (en) * | 2021-02-05 | 2021-06-18 | 成都中科四点零科技有限公司 | Automatic calibration system and method for signal source |
| CN113411143A (en) * | 2021-06-28 | 2021-09-17 | 上海创远仪器技术股份有限公司 | Power fitting processing method, system, device, processor and storage medium for eliminating uncertainty of numerical control attenuator in signal source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102055539A (en) | Automated calibration method and equipment for meter output signal | |
| CN103164311B (en) | Method for automatically testing communication function of object to be tested | |
| CN102638320A (en) | Method and equipment for determining radiofrequency signal calibration parameter of terminal testing instrument | |
| CN102386982B (en) | The measuring apparatus of a kind of radio frequency testing system errors in mobile terminal production and method | |
| CN103152109B (en) | Testboard and its calibration steps for wireless device | |
| CN107566053A (en) | Method and system for testing radio frequency index and computer readable storage medium | |
| CN101256214A (en) | Self-adapting testing system and method for radio-frequency power amplifier | |
| US20110136449A1 (en) | Testing System and Power Calibration Method Thereof | |
| CN103731219A (en) | Bluetooth finished product performance testing method and system | |
| CN100488064C (en) | Terminal scramble testing system and method | |
| CN110988782B (en) | Calibration circuit and system, electric energy metering chip and metering device | |
| CN113395122B (en) | Production test circuit board, radio frequency parameter calibration system, method and computer equipment | |
| CN101951634B (en) | Method and system for automatic power control calibration of TD-LTE terminal | |
| KR20160040539A (en) | Method for measuring sensitivity of data packet signal transceiver | |
| CN111432425B (en) | Test system and test method for network mode optimization of 3G/4G router | |
| US9008588B2 (en) | System and method for the calibration and verification of wireless networks with control network | |
| CN108282235A (en) | A kind of the decaying calibration test method and system of wireless router | |
| CN106789405A (en) | The method for rapidly testing and system of a kind of Devices to test | |
| CN104202099A (en) | System for calibrating 3G network card and calibration method thereof | |
| WO2020150050A1 (en) | System and method for testing a data packet signal transceiver | |
| CN106053957A (en) | Test fixture line loss test method and test fixture line loss test system | |
| CN101986581B (en) | Method and system for automatic gain control calibration of TD-LTE terminal | |
| CN206432996U (en) | Radio-frequency performance of wireless terminal test system | |
| CN103856277A (en) | Automatic testing system and method for measuring ZigBee radio frequency performance | |
| CN101183922B (en) | Method of implementing temperature compensation in zero intermediate frequency scheme |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110511 |