CN101365215B - 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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- CN101365215B CN101365215B CN2008102156875A CN200810215687A CN101365215B CN 101365215 B CN101365215 B CN 101365215B CN 2008102156875 A CN2008102156875 A CN 2008102156875A CN 200810215687 A CN200810215687 A CN 200810215687A CN 101365215 B CN101365215 B CN 101365215B
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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 store these error informations 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, the DATA REASONING that needs compensation correction is calculated and deposits the process in the EEPROM in, 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; This just needs to use calibrator (-ter) unit (like CMU (the Universal Radio Communication Tester of R&S company; The communication test appearance)) the emission path of product is tested and calibrated with the reception path, make mobile phone and end product satisfy the performance index of its regulation and the demand of check.
In the prior art, calibrate with the CMU mobile phone single board, it is as shown in Figure 1 that circuit connects sketch map, and CMU is connected with computer with antenna port when launching the path calibration, 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 through a pair of said power that transmits of the calibration procedure on the computer; 3, CMU provides the signal of a required frequency of said reception path and power to receiving path; 4, calibrate through 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 cost is high, 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 have emission path and the veneer that receives path, comprising:
The power that transmits on the said veneer emission path is calibrated;
The signal that transmitting on the said emission path is converted into required frequency of said reception path and power offers said reception path;
Power to the signal that receives on the said 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 have emission path and the veneer that receives path, comprising:
Voltage controlled oscillator: the signal that is used to provide setpoint frequency;
Frequency mixer: be used for the signal that provides with said voltage controlled oscillator that transmits on the said emission path is carried out mixing, produce the signal of two different frequencies, one of them is the signal of the required frequency of said reception path;
Filter: the filtering out of the signal of two different frequencies that are used for said frequency mixer is produced with the required frequency various signals of said reception path;
Amplifier/attenuator: be used for the power of changing into said reception path desired signal through the power of the signal behind the said filter.
A kind of anchor clamps that are used for single board calibrating are applicable to have emission path and the veneer that receives path, comprising:
Voltage controlled oscillator is used to provide the signal that receives path power demand and frequency, wherein on the reception path, the power of said signal is calibrated.
The embodiment of the invention also provides a kind of single board calibrating system, is applicable to have emission path and the veneer that receives path, comprising:
Emission path calibration module: be used for the power that transmits on the said veneer emission path is calibrated;
Anchor clamps: the signal that is used for transmitting on the said emission path converted into required frequency of said reception path and power offers said reception path;
Receive the path calibration module: be used for the power of the signal that receives on the said reception path is calibrated.
As stated, the embodiment of the invention has following advantage: just can calibrate veneer through anchor clamps and frequency spectrograph, need not to use CMU, practice thrift cost.
Description of drawings
Fig. 1 connects sketch map for the circuit that uses 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 that the GSM mobile handset single board calibrating circuit of the embodiment of the invention two connects sketch map;
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 sketch map that is used for single board calibrating.
Embodiment
Below, will be with reference to accompanying drawing to carrying out detailed explanation according to the embodiment of the invention.
The embodiment of the invention one provides a kind of single board calibrating method, and implementation procedure is as shown in Figure 2, may further comprise the steps:
Step s101: the power that transmits on the said veneer emission path is calibrated;
Step s102: the signal that transmitting on the said emission path is converted into required frequency of said reception path and power offers said reception path;
Step s103: the power to the signal that receives on the said reception path is calibrated.
The embodiment of the invention two provides a kind of GSM mobile handset single board calibrating method, and the frequency that the GSM mobile handset veneer transmits is 890MHZ, and the frequency that receives signal is 935MHZ; It is as shown in Figure 3 that circuit connects sketch map; The emission path is terminal to be connected with the interior frequency mixer of anchor clamps, and said frequency mixer is connected with voltage controlled oscillator, filter, and said filter is connected with power amplifier/attenuator; Said power amplifier/attenuator is connected with reception path top; Frequency spectrograph is connected with computer, antenna port, and implementation procedure is as shown in Figure 4 in detail, may further comprise the steps:
Step s201: the emission path at said GSM mobile handset veneer is test point A and B respectively with receiving on the path.
Step s202: the power that transmits through on a pair of said handset single-plate emission path of the calibration procedure on frequency spectrograph and the connected computer is calibrated.
Said mobile phone is under the GSM pattern; The frequency that transmits is 890MHZ; Through the actual power that transmits on the frequency spectrograph test emission path; And calculate the error of the said actual power that transmits and emission via design power, and said error is stored in the storage medium of said handset single-plate through the calibration procedure on the computer one.
Step s203: said anchor clamps through the test point B on the test point A on the said emission path and the said reception path with the emission path on the said veneer with receive path and be connected; And with said veneer energising, said anchor clamps are launched transmitting on the path with handset single-plate and are converted the signal of said handset single-plate reception path power demand and frequency into and offer said reception path.
Said veneer is connected energising with said anchor clamps after; Voltage controlled oscillator in the said 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 said emission path; Filter filters the signal of 845MHZ, and amplifier/attenuator becomes the power of 935MHZ signal the power of desired signal on the said reception path.
Step s204: said handset single-plate receives the signal that path receives 935MHZ, calibrates through the power of two pairs of said 935MHZ signals that receive of the calibration procedure on the baseband chip on the said reception path.
Two of the embodiment of the invention need anchor clamps and frequency spectrograph just to accomplish whole calibration process, have practiced thrift cost, can the cost of an original CMU be used for the cost of many frequency spectrographs and a plurality of said 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, and is as shown in Figure 5, comprising: emission path calibration module A: be used for the power that transmits on the said veneer emission path is calibrated;
Anchor clamps B: the signal that is used for transmitting on the said emission path converted into required frequency of said reception path and power offers said reception path;
Receive path calibration module C: be used for the power of the signal that receives on the said 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, and is as shown in Figure 6, comprising:
Emission path calibration module a: be used for the power that transmits on the said handset single-plate emission path is calibrated, further comprise:
Frequency spectrograph a1: be used for to transmitting on the said handset single-plate emission path actual power test;
Alignment unit a2: be used for calculating said frequency spectrograph test actual power and design power error and said error is stored in the storage medium of said handset single-plate.
Anchor clamps B: the signal that is used for transmitting on the said emission path converted into required frequency of said reception path and power offers said 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 said voltage controlled oscillator that transmits on the said emission path is carried out mixing, produce the signal of two different frequencies, one of them is the signal of the required frequency of said reception path;
Filter B3: the filtering out of the signal of two different frequencies that are used for said frequency mixer is produced with the required frequency various signals of said reception path;
Amplifier/attenuator B4: be used for the power of changing into said reception path desired signal through the power of the signal behind the said filter.
Baseband chip c: be used for the power of the signal that receives on the said reception path is calibrated.
Handset single-plate calibration steps, system that provides through the embodiment of the invention and the anchor clamps that are used for single board calibrating; In the mobile phone production process, practiced thrift cost; The cost that can the cost of an original CMU 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 according to the invention; Be used to provide the signal that receives path power demand and frequency; The signal frequency of accepting path like 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 scheme of the present invention is equally applicable to the calibration process of dual-mode handset, is not described in detail in this.
Technical scheme 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 (like data card, USM modem, wireless network card etc.), just no longer details at this.
Through above-mentioned description, person skilled can be carried out various change and modification fully in the scope that does not depart from technological thought of the present invention.Therefore, technical scope of the present invention is not limited to the content on the specification, must confirm its technical scope according to interest field.
Claims (6)
1. a single board calibrating method is applicable to have emission path and the veneer that receives path, it is characterized in that, comprising:
The power that transmits on the said veneer emission path is calibrated;
The signal that transmitting on the said emission path is converted into required frequency of said reception path and power offers said reception path, and specifically comprise: voltage controlled oscillator provides the signal of a setpoint frequency; Frequency mixer carries out mixing with the signal that provides with said voltage controlled oscillator that transmits on the said veneer emission path, produces the signal of two different frequencies, and one of them is the signal of the required frequency of said reception path; Filter is with filtering out with the required frequency various signals of said reception path in the signal of two different frequencies of said frequency mixer generation; The power that amplifier/attenuator will pass through the signal behind the said filter is changed into the power of said reception path desired signal;
Power to the signal that receives on the said reception path is calibrated.
2. single board calibrating method as claimed in claim 1 is characterized in that: the said power that transmits on the said veneer emission path is calibrated comprises: through frequency spectrograph and calibration procedure the power that transmits on the said veneer emission path is calibrated.
3. anchor clamps that are used for single board calibrating; Be applicable to and have emission path and the veneer that receives path; The signal that said anchor clamps are used for transmitting on the said emission path converted into required frequency of said reception path and power offers said reception path; It is characterized in that said 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 said voltage controlled oscillator that transmits on the said 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 said reception path;
Filter, the filtering out of the signal of two different frequencies that are used for said frequency mixer is produced with the required frequency various signals of said reception path;
Amplifier/attenuator is used for the power of changing into said reception path desired signal through the power of the signal behind the said filter.
4. anchor clamps that are used for single board calibrating are applicable to have emission path and the veneer that receives 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, the power of said signal is calibrated.
5. a single board calibrating system is applicable to have emission path and the veneer that receives path, it is characterized in that: comprising:
Emission path calibration module is used for the power that transmits on the said veneer emission path is calibrated;
Anchor clamps, the signal that is used for transmitting on the said emission path converted into required frequency of said reception path and power offers said reception path, and said 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 said voltage controlled oscillator that transmits on the said 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 said reception path; Filter, the filtering out of the signal of two different frequencies that are used for said frequency mixer is produced with the required frequency various signals of said reception path; Amplifier/attenuator is used for the power of changing into said reception path desired signal through the power of the signal behind the said filter;
Receive the path calibration module, be used for the power of the signal that receives on the said reception path is calibrated.
6. single board calibrating as claimed in claim 5 system is characterized in that said emission path calibration module comprises:
Frequency spectrograph, be used for to transmitting on the said veneer emission path actual power test;
Alignment unit, the actual power that is used for calculating said frequency spectrograph test is stored in the storage medium of said veneer with the error of emission via design power and with said error.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN2008102156875A CN101365215B (en) | 2008-09-12 | 2008-09-12 | Single board calibrating method, system and clamp for single board calibration |
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| CN101365215A CN101365215A (en) | 2009-02-11 |
| CN101365215B true CN101365215B (en) | 2012-06-06 |
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| 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 |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623287A (en) * | 2002-03-07 | 2005-06-01 | 诺基亚公司 | 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623287A (en) * | 2002-03-07 | 2005-06-01 | 诺基亚公司 | 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 |
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| CN101365215A (en) | 2009-02-11 |
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