CN101365215A - Single board calibrating method, system and clamp for single board calibration - Google Patents
Single board calibrating method, system and clamp for single board calibration Download PDFInfo
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- CN101365215A CN101365215A CNA2008102156875A CN200810215687A CN101365215A CN 101365215 A CN101365215 A CN 101365215A CN A2008102156875 A CNA2008102156875 A CN A2008102156875A CN 200810215687 A CN200810215687 A CN 200810215687A CN 101365215 A CN101365215 A CN 101365215A
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Abstract
The invention provides a veneer calibration method which is suitable for a veneer provided with a transmitting channel and a receiving channel. The method comprises the following steps: calibrating the power of a transmitting signal on the transmitting channel of the veneer; converting the transmitting signal on the transmitting veneer into a signal with the required frequency and the required power of the receiving channel; providing the signal for the receiving channel; and calibrating the power of the received signal on the receiving channel. The invention further provides a veneer calibrating system and a clamp used for calibrating the veneer. The veneer can be calibrated by the clamp and a spectrum analyzer, without the need of using a CMU, thereby saving cost.
Description
Technical field
The present invention relates to a kind of single board calibrating method and system, relate in particular to a kind of anchor clamps that have calibration steps, the system of emission path and the veneer that receives path and be used for single board calibrating.
Background technology
Because even the influence of factors such as device is inconsistent, variations in temperature, device aging based on the same design of same platform, also can show different electrical properties.In order to eliminate this influence, each mobile phone all will calculate some parameter error data to these parameter measurements before dispatching from the factory, and these error informations are stored into certain storage medium (being generally EEPROM) lining, in the normal use of mobile phone, CPU can read these data and utilize certain algorithm that the parameter of needs compensation is compensated.In production test procedure, process in the EEPROM is calculated and deposited in to the DATA REASONING that needs compensation correction, be referred to as calibration.
Under existing mobile phone manufacturing mode, mobile phone and end product must have links such as the calibration of production and production calibration before dispatching from the factory, and this just needs to use calibrator (-ter) unit (as R﹠amp; The CMU of S company (Universal Radio Communication Tester, communication test instrument)) the emission path and the reception path of product are tested and calibrated, make mobile phone and end product satisfy the performance index of its regulation and the demand of check.
In the prior art, with CMU handset single-plate is calibrated, the circuit connection diagram is launched path when calibration CMU and is connected with computer with antenna port as shown in Figure 1, and CMU is connected with reception path top when receiving the path calibration.Performing step comprises: 1, handset single-plate energising; 2, CMU tests the actual power of the signal of the emission on the veneer emission path, calibrates by a pair of described power that transmits of the calibration procedure on the computer; 3, CMU provides the signal of a required frequency of described reception path and power to receiving path; 4, calibrate by the two pairs of reception paths of calibration procedure that receive on the baseband chip on the path.
In realizing process of the present invention, the inventor finds to have following shortcoming in the prior art at least: the testing equipment of calibration needs is more expensive, and the cost height makes the calibration link become the bottleneck of the whole production line of mobile phone or end product.
Summary of the invention
The embodiment of the invention provides a kind of single board calibrating method, system and is used for the anchor clamps of single board calibrating, to solve the high problem of cost in the end product single board calibrating link in the prior art.
The embodiment of the invention provides a kind of single board calibrating method, is applicable to the veneer that has the emission path and receive path, comprising:
The power that transmits on the described veneer emission path is calibrated;
The signal that transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Power to the signal that receives on the described reception path is calibrated.
The embodiment of the invention provides a kind of anchor clamps that are used for single board calibrating again, is applicable to the veneer that has the emission path and receive path, comprising:
Voltage controlled oscillator: the signal that is used to provide setpoint frequency;
Frequency mixer: be used for the signal that provides with described voltage controlled oscillator that transmits on the described emission path is carried out mixing, produce the signal of two different frequencies, one of them is the signal of the required frequency of described reception path;
Filter: the filtering signals different with the required frequency of described reception path that is used for the signal of two different frequencies that described frequency mixer is produced falls;
Amplifier/attenuator: be used for and change into the power of described reception path desired signal through the power of the signal behind the described filter.
A kind of anchor clamps that are used for single board calibrating are applicable to the veneer that has the emission path and receive path, comprising:
Voltage controlled oscillator is used to provide the signal that receives path power demand and frequency, wherein on the reception path power of described signal is calibrated.
The embodiment of the invention also provides a kind of single board calibrating system, is applicable to the veneer that has the emission path and receive path, comprising:
Emission path calibration module: be used for the power that transmits on the described veneer emission path is calibrated;
Anchor clamps: the signal that is used for transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Receive the path calibration module: be used for the power of the signal that receives on the described reception path is calibrated.
As mentioned above, the embodiment of the invention has following advantage: just can calibrate veneer by anchor clamps and frequency spectrograph, need not to use CMU, save cost.
Description of drawings
The circuit connection diagram of Fig. 1 for using CMU to calibrate in the prior art;
The single board calibrating method flow diagram that Fig. 2 provides for embodiments of the invention one;
Fig. 3 is the GSM mobile handset single board calibrating circuit connection diagram of the embodiment of the invention two;
Fig. 4 is the GSM mobile handset single board calibrating method flow diagram of the embodiment of the invention two;
Fig. 5 is the single board calibrating system schematic of the embodiment of the invention three;
Fig. 6 is the handset single-plate calibration system of the embodiment of the invention four and the anchor clamps schematic diagram that is used for single board calibrating.
Embodiment
Below, with reference to the accompanying drawings the foundation embodiment of the invention is described in detail.
The embodiment of the invention one provides a kind of single board calibrating method, and implementation procedure may further comprise the steps as shown in Figure 2:
Step s101: the power that transmits on the described veneer emission path is calibrated;
Step s102: the signal that transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Step s103: the power to the signal that receives on the described reception path is calibrated.
The embodiment of the invention two provides a kind of GSM mobile handset single board calibrating method, the frequency that the GSM mobile handset veneer transmits is 890MHZ, the frequency of received signal is 935MHZ, the circuit connection diagram as shown in Figure 3, emission path frequency mixers terminal and in the anchor clamps are connected, described frequency mixer is connected with voltage controlled oscillator, filter, described filter is connected with power amplifier/attenuator, described power amplifier/attenuator is connected with reception path top, frequency spectrograph is connected with computer, antenna port, implementation procedure may further comprise the steps as shown in Figure 4 in detail:
Step s201: the emission path at described GSM mobile handset veneer is test point A and B respectively with receiving on the path.
Step s202: calibrate by the power that transmits on a pair of described handset single-plate emission path of the calibration procedure on frequency spectrograph and the connected computer.
Described mobile phone is under the GSM pattern, the frequency that transmits is 890MHZ, by the actual power that transmits on the frequency spectrograph test emission path, and by the error of the described actual power that transmits of one calculating of the calibration procedure on the computer, and described error is stored in the storage medium of described handset single-plate with emission via design power.
Step s203: described anchor clamps by the test point B on the test point A on the described emission path and the described reception path with the emission path on the described veneer with receive path and be connected, and with described veneer energising, described anchor clamps are launched transmitting on the path with handset single-plate and are converted to the signal of described handset single-plate reception path power demand and frequency and offer described reception path.
Described veneer is connected energising with described anchor clamps after, voltage controlled oscillator in the described anchor clamps provides the signal of a 45MHZ, be respectively two signals of 935MHZ and 845MHZ through generation frequency behind the frequency mixer with the transmitting of 890MHZ on the described emission path, filter filters the signal of 845MHZ, and amplifier/attenuator becomes the power of 935MHZ signal the power of desired signal on the described reception path.
Step s204: described handset single-plate receives the signal that path receives 935MHZ, calibrates by the power of two pairs of described 935MHZ signals that receive of the calibration procedure on the baseband chip on the described reception path.
Two of the embodiment of the invention need anchor clamps and frequency spectrograph just to finish whole calibration process, have saved cost, the cost of an original CMU can be used for the cost of many frequency spectrographs and a plurality of described anchor clamps simultaneously, and a plurality of veneers are calibrated simultaneously, enhance productivity.
The embodiment of the invention three provides a kind of single board calibrating system, as shown in Figure 5, comprising:
Emission path calibration module A: be used for the power that transmits on the described veneer emission path is calibrated;
Anchor clamps B: the signal that is used for transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Receive path calibration module C: be used for the power of the signal that receives on the described reception path is calibrated.
The embodiment of the invention four provides a kind of handset single-plate calibration system and is used for the anchor clamps of single board calibrating, as shown in Figure 6, comprising:
Emission path calibration module a: be used for the power that transmits on the described handset single-plate emission path is calibrated, further comprise:
Frequency spectrograph a1: be used for to transmitting on the described handset single-plate emission path actual power test;
Alignment unit a2: be used for calculating the error of the actual power of described frequency spectrograph test and design power and described error be stored in the storage medium of described handset single-plate.
Anchor clamps B: the signal that is used for transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path, further comprises:
Voltage controlled oscillator B1: the signal that is used to provide setpoint frequency;
Frequency mixer B2: be used for the signal that provides with described voltage controlled oscillator that transmits on the described emission path is carried out mixing, produce the signal of two different frequencies, one of them is the signal of the required frequency of described reception path;
Filter B3: the filtering signals different with the required frequency of described reception path that is used for the signal of two different frequencies that described frequency mixer is produced falls;
Amplifier/attenuator B4: be used for and change into the power of described reception path desired signal through the power of the signal behind the described filter.
Baseband chip c: be used for the power of the signal that receives on the described reception path is calibrated.
Handset single-plate calibration steps, system that provides by the embodiment of the invention and the anchor clamps that are used for single board calibrating, in the mobile phone production process, saved cost, the cost that the cost of an original CMU can be used for many frequency spectrographs and a plurality of anchor clamps simultaneously, simultaneously a plurality of handset single-plates are calibrated, enhanced productivity.
Also can directly establish a voltage controlled oscillator in the anchor clamps of the present invention, be used to provide the signal that receives path power demand and frequency, the signal frequency of accepting path as the GSM mobile handset veneer is 935MHZ, directly a frequency is provided is the signal of 935MHZ to voltage controlled oscillator in order to accept path, uses the same method and can realize same calibration process.
Technical solution of the present invention is equally applicable to the calibration process of dual-mode handset, is not described in detail in this.
Technical solution of the present invention goes for WCDMA equally, and GSM on a plurality of technical fields such as TD-SCDMA, uses the present invention and can realize same function at terminal equipment (as data card, USM modem, wireless network card etc.), just no longer describes in detail at this.
By above-mentioned description, person skilled can be carried out various change and modification fully in the scope that does not depart from the technology of the present invention thought.Therefore, technical scope of the present invention is not limited to the content on the specification, must determine its technical scope according to interest field.
Claims (8)
1, a kind of single board calibrating method is applicable to the veneer that has the emission path and receive path, it is characterized in that, comprising:
The power that transmits on the described veneer emission path is calibrated;
The signal that transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Power to the signal that receives on the described reception path is calibrated.
2, single board calibrating method as claimed in claim 1 is characterized in that: the described power that transmits on the described veneer emission path is calibrated comprises: by frequency spectrograph and calibration procedure the power that transmits on the described veneer emission path is calibrated.
3, single board calibrating method as claimed in claim 1 is characterized in that: the described signal that transmitting on the described emission path is converted to required frequency of described reception path and power comprises:
Voltage controlled oscillator provides the signal of a setpoint frequency;
Frequency mixer carries out mixing with the signal that provides with described voltage controlled oscillator that transmits on the described veneer emission path, produces the signal of two different frequencies, and one of them is the signal of the required frequency of described reception path;
Filter falls the filtering signals different with the required frequency of described reception path in the signal of two different frequencies of described frequency mixer generation;
Amplifier/attenuator will be changed into the power of described reception path desired signal through the power of the signal behind the described filter.
4, a kind of anchor clamps that are used for single board calibrating are applicable to the veneer that has the emission path and receive path, it is characterized in that, comprising:
Voltage controlled oscillator is used to provide the signal of setpoint frequency;
Frequency mixer is used for the signal that provides with described voltage controlled oscillator that transmits on the described emission path is carried out mixing, produces the signal of two different frequencies, and one of them is the signal of the required frequency of described reception path;
Filter, the filtering signals different with the required frequency of described reception path that is used for the signal of two different frequencies that described frequency mixer is produced falls;
Amplifier/attenuator is used for and will changes into the power of described reception path desired signal through the power of the signal behind the described filter.
5, a kind of anchor clamps that are used for single board calibrating are applicable to the veneer that has the emission path and receive path, it is characterized in that, comprising:
Voltage controlled oscillator is used to provide the signal that receives path power demand and frequency, wherein on the reception path power of described signal is calibrated.
6, a kind of single board calibrating system is applicable to the veneer that has the emission path and receive path, it is characterized in that: comprising:
Emission path calibration module is used for the power that transmits on the described veneer emission path is calibrated;
Anchor clamps, the signal that is used for transmitting on the described emission path is converted to required frequency of described reception path and power offers described reception path;
Receive the path calibration module, be used for the power of the signal that receives on the described reception path is calibrated.
7, single board calibrating as claimed in claim 6 system is characterized in that described emission path calibration module comprises:
Frequency spectrograph, be used for to transmitting on the described veneer emission path actual power test;
Alignment unit, the storage medium that is used for calculating described frequency spectrograph actual power of testing and the error of launching via design power and described error is stored in described veneer.
8, single board calibrating as claimed in claim 6 system is characterized in that described anchor clamps comprise:
Voltage controlled oscillator is used to provide the signal of setpoint frequency;
Frequency mixer is used for the signal that provides with described voltage controlled oscillator that transmits on the described emission path is carried out mixing, produces the signal of two different frequencies, and one of them is the signal of the required frequency of described reception path;
Filter, the filtering signals different with the required frequency of described reception path that is used for the signal of two different frequencies that described frequency mixer is produced falls;
Amplifier/attenuator is used for and will changes into the power of described reception path desired signal through the power of the signal behind the described filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102156875A CN101365215B (en) | 2008-09-12 | 2008-09-12 | Single board calibrating method, system and clamp for single board calibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102156875A CN101365215B (en) | 2008-09-12 | 2008-09-12 | Single board calibrating method, system and clamp for single board calibration |
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| Publication Number | Publication Date |
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| CN101365215A true CN101365215A (en) | 2009-02-11 |
| CN101365215B CN101365215B (en) | 2012-06-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607248A (en) * | 2013-08-31 | 2014-02-26 | 珠海银邮光电技术发展股份有限公司 | Test method for receiving sensitivity of wireless communication module |
| CN104253657A (en) * | 2013-06-25 | 2014-12-31 | 晨星半导体股份有限公司 | Communication circuit and related calibration method |
| CN111351989A (en) * | 2018-12-24 | 2020-06-30 | 北京小米移动软件有限公司 | Measuring method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1481492B1 (en) * | 2002-03-07 | 2010-06-09 | Nokia Corporation | Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network |
| CN100428659C (en) * | 2003-08-30 | 2008-10-22 | 华为技术有限公司 | Method for measuring ageing link of single board |
-
2008
- 2008-09-12 CN CN2008102156875A patent/CN101365215B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253657A (en) * | 2013-06-25 | 2014-12-31 | 晨星半导体股份有限公司 | Communication circuit and related calibration method |
| CN104253657B (en) * | 2013-06-25 | 2016-08-17 | 晨星半导体股份有限公司 | Communicating circuit and dependent correction method |
| CN103607248A (en) * | 2013-08-31 | 2014-02-26 | 珠海银邮光电技术发展股份有限公司 | Test method for receiving sensitivity of wireless communication module |
| CN111351989A (en) * | 2018-12-24 | 2020-06-30 | 北京小米移动软件有限公司 | Measuring method and device |
| CN111351989B (en) * | 2018-12-24 | 2022-06-03 | 北京小米移动软件有限公司 | Method and device for measuring loss value of machine |
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| CN101365215B (en) | 2012-06-06 |
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