CN103906215B - The calibration method of LTE terminal downlink gain - Google Patents
The calibration method of LTE terminal downlink gain Download PDFInfo
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- CN103906215B CN103906215B CN201210586403.XA CN201210586403A CN103906215B CN 103906215 B CN103906215 B CN 103906215B CN 201210586403 A CN201210586403 A CN 201210586403A CN 103906215 B CN103906215 B CN 103906215B
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Abstract
The present invention relates to the calibration method of LTE terminal downlink gain, performed between console, test instrumentation and terminal, this method comprises the following steps：A control command is carried out in console and terminal to interact, it would be desirable to which the frequency sequence and AGC control word sequences of calibration are disposably handed down to terminal；First frequency and AGC control word configuration receivers in terminal uses control command, start to detect the power of the test signal of each subframe；The test signal for exporting multiple power grades and frequency is started the cycle in console control test instrumentation；When saltus step occurs for the power that terminal detects test signal, the AGC control words sequence and frequency sequence specified according to control command configuration receiver successively, and the power of the test signal to receiving is measured, until whole frequency sequence and AGC control word sequence measurings are finished；All measured values are reported from terminal to console, the measured value returned in console according to terminal is calculated and judged, final calibration result is preserved into terminal.
Description
Technical field
The present invention relates to a kind of LTE（Long Term Evolution）The calibration method of terminal down link gain.
Background technology
Existing LTE terminal downlink gain calibration is carried out by the way of single step pointwise calibration.Fig. 1 shows existing
LTE terminal downlink gain calibration method flow chart.This calibration method needs computer, test instrumentation and terminal.Ginseng
According to shown in Fig. 1, first such as step 101, computer controls test instrumentation output on frequency is specified to specify according to test plan table
The CW signals (- 25dbm) of power.Then in step 102, computer carries out a command interaction with terminal, and terminal is according to calculating
The control command of machine reports the I/Q signal power average now measured to computer, and calculating obtains yield value.In step 103,
Repeat repeat step 101,102, all calibration is finished until the power points and frequency specified in test plan table, and other without
Crossing the point of calibration can be calculated by formula fitting.In step 104, the code table calibrated is preserved into the memory of terminal.
But, there is following point in above-mentioned downlink gain calibration method：It is that computer is handed over station command first
Mutual number of times is extremely frequent, inefficiency；Secondly, test instrumentation vacancy rate is high, reduces the service efficiency of instrument；Calibration efficiency
Optimization fully relies on reduction calibration points to carry out, can partial sacrifice calibration accuracy.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of calibration method of LTE terminal downlink gain, with
On the premise of ensureing calibration accuracy, calibration efficiency is lifted.
The present invention is to propose a kind of LTE terminal downlink gain to solve the technical scheme that above-mentioned technical problem is used
Calibration method, performed between a console, a test instrumentation and the terminal, this method comprises the following steps：
A. a control command is carried out in the console and the terminal interact, it would be desirable to the frequency sequence calibrated with
AGC control words sequence is disposably handed down to the terminal；
B. first frequency and AGC control word configuration receivers in the terminal uses the control command, start detection
The power of the test signal of each subframe；
C. control the test instrumentation to start the cycle in the console and export the test signals of multiple power grades and frequency；
D. occur saltus step, the AGC control word sequences specified according to the control command when the terminal detects test signal power
Row and frequency sequence configuration receiver successively, and the power of the test signal to receiving measures, until whole frequency sequence
Row and AGC control word sequence measurings are finished；And
E. all measured values are reported from the terminal to the console, the measured value returned in the console according to the terminal enters
Row is calculated and judged, final calibration result is preserved into the terminal.
In one embodiment of this invention, circulation exports multiple power in units of predetermined time interval in step c
The test signal of grade and frequency.
In one embodiment of this invention, a receiver is configured every the predetermined time interval in step d.
In one embodiment of this invention, the test signal is tone signal.
In one embodiment of this invention, the console is computer.
The present invention also proposes a kind of calibration method of LTE terminal downlink gain, performs on the terminal, this method bag
Include following steps：
A. carry out a control command with a console to interact, need what is calibrated disposably to be obtained from the console
Frequency sequence and AGC control word sequences；
B. first frequency and AGC control word configuration receivers in the control command are used, starts to detect each subframe
Test signal power；
C. when saltus step occurs for the power that the terminal detects the test signal, the AGC specified according to the control command is controlled
Word sequence and frequency sequence configuration receiver successively, and the power of the test signal to receiving measures, until whole frequency
Point sequence and AGC control word sequence measurings are finished；And
D. all measured values are reported from the terminal to the console, and final calibration result is obtained from the console.
In one embodiment of this invention, a receiver is configured every the predetermined time interval in step c.
After LTE terminal downlink gain calibration method using the present invention, each standard（That is TDD LTE and FDD
LTE）Downlink gain calibration only need a command interaction and the control of test instrumentation, largely lifted
Testing efficiency and test instrumentation utilization rate.Meanwhile, often increase a calibration point, it is only necessary to increase a time interval, to test
The influence of efficiency is minimum, therefore avoids the need for reducing the phenomenon of calibration point, and compatibility of the method to radio frequency chip is added indirectly
Property.
Brief description of the drawings
For the above objects, features and advantages of the present invention can be become apparent, below in conjunction with tool of the accompanying drawing to the present invention
Body embodiment elaborates, wherein：
Fig. 1 shows existing LTE terminal downlink gain calibration method flow chart.
Fig. 2 shows the LTE terminal downlink gain calibration method flow chart of one embodiment of the invention.
Fig. 3 shows the downlink gain instrumentation plan of one embodiment of the invention.
Embodiment
Summarily say, embodiments of the invention propose a kind of frequency sequence that disposably can be calibrated needs from console
Row and AGC（Automatic Gain Control, automatic growth control）The downlink gain of control word sequence notification terminal
Calibration method, so as to avoid computer and terminal room frequently command interaction.In an embodiment of the present invention, console can be energy
Enough according to test plan come control terminal and the equipment of the testing progress of test instrumentation.Typical console can be computer.
It is configured with to perform the program of said process on computer.In an embodiment of the present invention, terminal can be to meet LTE standard
Mobile device, such as mobile phone, tablet personal computer.
Fig. 2 shows the LTE terminal downlink gain calibration method flow chart of one embodiment of the invention.This flow be
Performed between computer, test instrumentation and terminal.Shown in reference picture 2, this method comprises the following steps：
In step 201, carry out a control command in console and terminal and interact, it would be desirable to the frequency sequence calibrated
Terminal is disposably handed down to AGC control word sequences.
In step 202, first frequency and AGC control word configuration receivers in terminal uses control command start
Detect the power of the test signal of each subframe.
In step 203, the test for controlling test instrumentation to start the cycle over the multiple power grades of output and frequency in console is believed
Number.
In step 204, occur saltus step when terminal detects test signal power, specified according to foregoing control command
AGC control words sequence and frequency sequence configuration receiver, and being measured to the test signal power received successively, until whole
Individual frequency sequence and AGC control word sequence measurings are finished.
In step 205, all measured values are reported from terminal to console, the measured value returned in console according to terminal enters
Row is calculated and judged, final calibration result is preserved into terminal.
In one embodiment, the power measurement of test signal can use IQ（In-phase/Quadrature, with phase just
Hand over）Metering system.Test signal can simply use tone signal.
In one embodiment, be in step 203 in units of predetermined time interval the circulation multiple power grades of output and
The test signal of frequency.Predetermined time interval is, for example, 10ms.Correspondingly, it is every the predetermined time interval in step 204
Configure a receiver.
If as follows the step of end side is performed from the point of view of terminal：A control command is carried out with console to interact,
Disposably to obtain the frequency sequence and AGC control word sequences that need to be calibrated from the console；Using in the control command
First frequency and AGC control word configuration receivers, start to detect the power of the test signal of each subframe；When the terminal is detectd
Saltus step occurs for the power for measuring the test signal, and the AGC control words sequence and frequency sequence specified according to the control command are successively
Configuration receiver, and the test signal power received is measured, until whole frequency sequence and AGC control words sequence are surveyed
Amount is finished；And all measured values are reported from the terminal to the console, and obtain final calibration result from the console.
The instrumentation plan of the present embodiment is as shown in Figure 3.
After the LTE terminal downlink gain method of continuously calibrating of above-described embodiment, each standard（That is TDD LTE
With FDD LTE）Downlink gain calibration only need a command interaction and the control of test instrumentation, high degree
On improve testing efficiency and instrument utilization rate.Meanwhile, often increase a calibration point, it is only necessary to increase a time interval, to surveying
The influence for trying efficiency is minimum, therefore avoids the need for reducing the phenomenon of calibration point, and method is added indirectly to the simultaneous of radio frequency chip
Capacitive.
Embodiments of the invention change conventional test instrumentation and first start output signal, and terminal is then instructed by computer
Control proceeds by the mode of measurement.In an embodiment of the present invention, the power of terminal-pair test signal is judged, is independently sentenced
The saltus step of location survey trial signal power, so as to trigger whole downlink gain calibration automatically.So, the function of test instrumentation is simple
Easily realize, it is only necessary to the tone signal of the multiple power grades of circulation output and frequency in units of the duration of setting, be not required to
Any information exchange is carried out with terminal.
Although the present invention is described with reference to current specific embodiment, those of ordinary skill in the art
It should be appreciated that the embodiment of the above is intended merely to the explanation present invention, it can also make in the case of without departing from spirit of the invention
Go out various equivalent change or replacement, therefore, as long as change, change in the spirit of the present invention to above-described embodiment
Type will all fall in the range of following claims.
Claims (6)
1. a kind of calibration method of LTE terminal downlink gain, holds between a console, a test instrumentation and the terminal
OK, this method comprises the following steps：
A. carry out a control command in the console and the terminal to interact, it would be desirable to frequency sequence and the AGC control calibrated
Word sequence processed is disposably handed down to the terminal；
B. first frequency and AGC control word configuration receivers in the terminal uses the control command, start detection each
The power of the test signal of subframe；
C. control the test instrumentation to start the cycle in the console and export the test signals of multiple power grades and frequency；
D. when saltus step, the AGC control word sequences specified according to the control command occur for the power that the terminal detects test signal
Measured with the power of frequency sequence successively configuration receiver, and the test signal to receiving, until whole frequency sequence
Finished with AGC control word sequence measurings；And
E. all measured values are reported from the terminal to the console, the measured value returned in the console according to the terminal is counted
Calculate and judge, final calibration result is preserved into the terminal；
Wherein, the test signal is tone signal.
2. the method as described in claim 1, it is characterised in that circulated in step c in units of predetermined time interval defeated
Go out the test signal of multiple power grades and frequency.
3. the method as described in claim 1, it is characterised in that in step d every predetermined time interval configuration once
Receiver.
4. the method as described in claim 1, it is characterised in that the console is computer.
5. a kind of calibration method of LTE terminal downlink gain, is performed, this method comprises the following steps on the terminal：
A. carry out a control command with a console to interact, disposably to obtain the frequency for needing to be calibrated from the console
Sequence and AGC control word sequences；
B. first frequency and AGC control word configuration receivers in the control command are used, starts to detect the survey of each subframe
The power of trial signal；
C. when saltus step, the AGC control word sequences specified according to the control command occur for the power that the terminal detects the test signal
Row and frequency sequence configuration receiver successively, and the power of the test signal to receiving measures, until whole frequency sequence
Row and AGC control word sequence measurings are finished；And
D. all measured values are reported from the terminal to the console, and final calibration result is obtained from the console；
Wherein, the test signal is tone signal.
6. method as claimed in claim 5, it is characterised in that in step c every predetermined time interval configuration once
Receiver.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210586403.XA CN103906215B (en) | 2012-12-28 | 2012-12-28 | The calibration method of LTE terminal downlink gain |
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|---|---|---|---|
| CN201210586403.XA CN103906215B (en) | 2012-12-28 | 2012-12-28 | The calibration method of LTE terminal downlink gain |
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| CN103906215A CN103906215A (en) | 2014-07-02 |
| CN103906215B true CN103906215B (en) | 2017-08-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1943132A (en) * | 2004-05-31 | 2007-04-04 | 中兴通讯股份有限公司 | Calibration apparatus and method of array communication system receiving chain |
| CN101232314A (en) * | 2008-01-22 | 2008-07-30 | 中兴通讯股份有限公司 | Apparatus and method for correcting TDD intelligent antenna system |
| CN101951674A (en) * | 2010-09-16 | 2011-01-19 | 新邮通信设备有限公司 | Method and device for calibrating downlink channel gain |
| CN102014473A (en) * | 2010-12-09 | 2011-04-13 | 中兴通讯股份有限公司 | Power calibration control method and device |
| CN102958074A (en) * | 2011-08-25 | 2013-03-06 | 联芯科技有限公司 | Mobile terminal calibration method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7515884B2 (en) * | 2005-03-02 | 2009-04-07 | Cisco Technology, Inc. | Method and system for self-calibrating transmit power |
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2012
- 2012-12-28 CN CN201210586403.XA patent/CN103906215B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943132A (en) * | 2004-05-31 | 2007-04-04 | 中兴通讯股份有限公司 | Calibration apparatus and method of array communication system receiving chain |
| CN101232314A (en) * | 2008-01-22 | 2008-07-30 | 中兴通讯股份有限公司 | Apparatus and method for correcting TDD intelligent antenna system |
| CN101951674A (en) * | 2010-09-16 | 2011-01-19 | 新邮通信设备有限公司 | Method and device for calibrating downlink channel gain |
| CN102014473A (en) * | 2010-12-09 | 2011-04-13 | 中兴通讯股份有限公司 | Power calibration control method and device |
| CN102958074A (en) * | 2011-08-25 | 2013-03-06 | 联芯科技有限公司 | Mobile terminal calibration method |
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Effective date of registration: 20191105 Address after: 300450 1-1-609-a, North Zone, financial and Trade Center, 6865 Asia Road, Tianjin Free Trade Zone (Dongjiang Free Trade Port Area), Binhai New Area, Tianjin Patentee after: Huiyi finance leasing (Tianjin) Co., Ltd Address before: 201206 No. 1258 Mingyue Road, Shanghai, Pudong New Area Patentee before: Leadcore Technology Co., Ltd. |
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Application publication date: 20140702 Assignee: Leadcore Technology Co., Ltd. Assignor: Huiyi finance leasing (Tianjin) Co., Ltd Contract record no.: X2020990000002 Denomination of invention: LTE terminal downlink gain calibrating method Granted publication date: 20170804 License type: Exclusive License Record date: 20200103 |
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Effective date of registration: 20220314 Address after: 201206 Ming Yue Road, Pudong New Area, Shanghai, No. 1258 Patentee after: LEADCORE TECHNOLOGY Co.,Ltd. Address before: 300450 1-1-609-a, north area of financial and Trade Center, No. 6865, Asia Road, Tianjin pilot free trade zone (Dongjiang Bonded Port Area), Binhai New Area, Tianjin Patentee before: Huiyi finance leasing (Tianjin) Co.,Ltd. |