CN102257857B - Method and device for compensating power according to frequency - Google Patents
Method and device for compensating power according to frequency Download PDFInfo
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- CN102257857B CN102257857B CN201180000997.5A CN201180000997A CN102257857B CN 102257857 B CN102257857 B CN 102257857B CN 201180000997 A CN201180000997 A CN 201180000997A CN 102257857 B CN102257857 B CN 102257857B
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- frequency
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
Abstract
A method and device for compensating the power according to the frequency are provided by the present invention. The method includes: a detector transforms the output power transmitted by the base station into the analog voltage, and performs the compensation for the output power according to the difference value between said analog voltage and the detection voltage, wherein, said detection voltage is obtained by the following mode: dividing the operating frequency range of said base station into N frequency ranges, in said N frequency ranges, the frequency points included in the middle frequency ranges are more than the frequency points included in the margin frequency ranges, N is a positive integer and is bigger than 1; selecting one frequency point as a sample point in every frequencyrange, and obtaining the detection voltage. The device includes a detector, a detection voltage obtaining apparatus and a compensator.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of power-frequency compensation method and equipment.
Background technology
Global system for mobile communications (Global System for Mobile Communication, abbreviate as: (the Base Station of base station GSM), abbreviate as: BS), carry out the power control of its transceiver (Transceiver) in the following way: with the radio-frequency power output of the transceiver input as wave detector, wave detector is aanalogvoltage with the power transfer that receives, and this analog voltage and the actual mould detection value of burning compared, if there is difference, then adjust the transmitting power of transceiver, thereby realize the accurate power control of GSM.Wherein, the actual mould detection value of burning is the actual power that obtains by the actual test b S of instrument (as power meter) power output and the corresponding relation between the detecting circuit.Therefore, arbitrary definite power output can have its corresponding detecting circuit.
GSM is operated in 900MHz or 1800MHz frequency range.For BS, descending actual operating frequency is 935MHz～960MHz, perhaps 1805MHz～1880MHz.Because under different operating frequencies, there is error in corresponding actual the burning between the mould detection value of the power of identical size, for the BS down output power that guarantees GSM accurately, need the actual burning mould detection value under the different frequency be compensated.Present common practice is: the downlink working frequency range of BS is divided into N section (N arranges according to actual needs), and each section is got a frequency and is obtained its actual burning mould detection value as the benchmark sampling point, thereby realizes the power-frequency compensation in the whole frequency.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: in order to realize the power-frequency compensation more exactly, a plurality of sampling points certainly will will be got, the value of N obtained be the bigger the better, but the increasing to have a strong impact on and produce the efficient of burning mould and the resource of wasting software and hardware of sampling point number.
Summary of the invention
The embodiment of the invention provides a kind of power-frequency compensation method and equipment, in order to solving the problem that can't accurately realize power-frequency compensation in the prior art, imitates rate, does not increase under the prerequisite of software resource not influencing to produce to burn, and has effectively improved compensation precision.
A kind of power-frequency compensation method is provided on the one hand, comprise: wave detector is converted into aanalogvoltage with the power output that the base station sends, and according to described aanalogvoltage and the difference of burning between the mould detection value power output is compensated, wherein, described burning mould detection value obtains in the following way:
The working frequency range of described base station is divided into N comprises the different frequency range of frequency points, in a described N frequency range, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1;
Select a frequency as sampling point in each frequency range, obtain to burn mould detection value.
A kind of power-frequency compensation equipment is provided on the other hand, comprises:
Wave detector is used for the power output that the base station sends is converted to aanalogvoltage;
Burn the mould device, be divided into N for the working frequency range with the base station and comprise the different frequency range of frequency points, in a described N frequency range, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1; In each frequency range, select a frequency as sampling point, obtain to burn mould detection value;
Compensator is used for carrying out output power back off according to the difference between described aanalogvoltage and the burning mould detection value.
Power-frequency compensation method and the equipment of the embodiment of the invention, be divided into N by the working frequency range with the base station and comprise the different frequency range of frequency points, the frequency points that the frequency points that intermediate bands wherein comprises comprises greater than the edge frequency range, make the bigger frequency range of detection value fluctuation increase sampling point, the less frequency range of detection value fluctuation has reduced sampling point, imitate rate, do not increase under the prerequisite of software resource not influencing produce to burn, effectively improved compensation precision.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The power-frequency compensation method flow chart that Fig. 1 provides for one embodiment of the invention;
The frequency that Fig. 2 provides for the embodiment of the invention and burn corresponding relation schematic diagram between the mould detection value;
The structural representation of the power-frequency compensation equipment that Fig. 3 provides for one embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The power-frequency compensation method flow chart that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, this method comprises:
Step 101: wave detector is converted to aanalogvoltage with the power output that the base station sends.
Wherein, wave detector is operated in the radio frequency part of base station, is used for the down output power that the base station sends is converted to aanalogvoltage.
Step 102: power output is compensated according to the difference between aanalogvoltage and the burning mould detection value, wherein burning mould detection value obtains in the following way: the working frequency range of base station is divided into the individual different frequency range of frequency points that comprises of N, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1; In each frequency range, select a frequency as sampling point, obtain to burn mould detection value.
Need to prove that the process of burning mould can be understood as the power output by instrument (as power meter) actual measurement base station, note the one-to-one relationship between actual power output and the detecting circuit (call in the following text and burn mould detection value).
The inventor is by having tested the different frequency of a large amount of radio-frequency modules corresponding burning mould detection value under equal-wattage, discovery is in intermediate bands, different frequencies is different very little at the corresponding burning mould of equal-wattage detection value difference, and burn differing greatly of mould detection value at the edge frequency, the corresponding relation schematic diagram between frequency as shown in Figure 2 and the burning mould detection value.Therefore, when realizing the power-frequency compensation, the working frequency range unequal interval of GSM can be divided into the N section, each section is got a frequency and is burnt mould as the benchmark sampling point, the sampling point of minimizing in intermediate bands, and the sampling point of increase edge frequency range can be realized more accurate power frequency compensation like this under same sampling point number.
Be example with corresponding relation schematic diagram shown in Figure 2, frequency (abscissa among Fig. 2) 1～124 can be divided into a plurality of frequency ranges (abscissa interval), and the size of each frequency range (abscissa interval) is relevant with the fluctuation of its detection value (ordinate among Fig. 2).As can be seen from Figure 2, begin to finish to frequency 112 from frequency 11, the scope that the corresponding detection value of frequency in this abscissa interval fluctuates up and down is smaller, and in two abscissa intervals of frequency 1 to 10 and 113 to 124, the scope that the corresponding detection value of frequency fluctuates up and down is bigger, therefore, at least frequency 1～124 can be divided into three frequency ranges, first frequency range is that edge frequency range 1～10, second frequency range are that intermediate bands 11～112, the 3rd frequency range are edge frequency range 113～124.Wherein, in order to obtain corresponding detection value more exactly, can also further be distinguished into different little frequency ranges in each frequency range, for example, first frequency range is divided into frequency range more than 2 or 2 (as 1～5 and 6～10, perhaps 1～2,3～5,6～10 etc.), and/or second frequency range divided into frequency range more than 2 or 2 (as 10～61 and 61～112, perhaps 10～20,21～61,61～102 and 103～112 etc.), and/or with the 3rd frequency range divide into frequency range more than 2 or 2 (as 113～119 and 120～124, perhaps 113～117,118～121 and 122～124 etc.).Be that example describes the corresponding relation schematic diagram shown in Fig. 2 is divided into 8 frequency ranges, if frequency range is divided into 8 sections, for example 1～15,16～31,32～47,48～62,63～77,78～93,94～108,109～124, get the middle frequency of each section as the benchmark sampling point, the detection value worst error in the whole frequency is 15mV so.If adopt unequal interval to be divided into 8 sections, as 1～5,6～10,10～20,21～61,61～102,103～112,113～117,118～124, get the middle frequency of each section as the benchmark sampling point, the burning mould detection value worst error in the whole frequency is 7mV so.Need to prove that the benchmark sampling point serves as preferred with the middle frequency of each section frequency range, can also select other frequencies in each section frequency range is the benchmark sampling point, does not do restriction herein.
The mode of unequal interval segmentation has a variety of, for example, the edge frequency range adopts carries out the interval with respect to the mode of intermediate bands symmetry (perhaps asymmetric), perhaps, to the edge frequency range, the frequency number that each frequency range comprises reduces successively or reduces at random, perhaps from middle frequency range, to the edge frequency range, the frequency that each frequency range comprises counts the equal difference minimizing or geometric ratio reduces or index reduces etc. from middle frequency range.
Wherein, carrying out output power back off according to the difference between aanalogvoltage and the burning mould detection value can be understood as: adjust the gain of radio-frequency module, make actual detection value consistent with burning mould detection value, and reach consistent with target power.
The power-frequency compensation method of the embodiment of the invention, be divided into N by the working frequency range with the base station and comprise the different frequency range of frequency points, the frequency points that the frequency points that intermediate bands wherein comprises comprises greater than the edge frequency range, make the bigger frequency range of detection value fluctuation increase sampling point, the less frequency range of detection value fluctuation has reduced sampling point, imitate rate, do not increase under the prerequisite of software resource not influencing produce to burn, effectively improved the power back-off precision.Behind a large amount of radio-frequency module of test, use this power compensating method after, the power precision maximum in the whole frequency can improve 0.5dBm.
The structural representation of the power-frequency compensation equipment that Fig. 3 provides for one embodiment of the invention, this equipment can be used for carrying out said method embodiment, and as shown in Figure 3, this equipment comprises: wave detector 301, burn mould device 302 and compensator 303.Wherein, wave detector 301 is used for the power output that the base station sends is converted to aanalogvoltage.Burning mould device 302 is used for the working frequency range of base station is divided into the individual different frequency range of frequency points that comprises of N, in this N frequency range, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1, in each frequency range, select a frequency as sampling point, obtain to burn mould detection value.The difference that compensator 303 is used between the burning mould detection value that the aanalogvoltage that obtains according to wave detector 301 and burning mould device 302 obtain is carried out output power back off.Need to prove that wave detector 301, burning mould device 302 and compensator 303 all can be used as independently hardware entities existence.Be example with compensator 303, can realize its function by the central processing unit of intelligent chips such as single-chip microcomputer or computer.
Under a kind of execution mode, burning mould device 302 can comprise: first division unit is divided into N for the working frequency range with the base station and comprises the different frequency range of frequency points, wherein, to the edge frequency range, the frequency number that each frequency range comprises reduces successively or reduces at random from middle frequency range.
Under another execution mode, burning mould device 302 can comprise: second division unit is divided into N for the working frequency range with the base station and comprises the different frequency range of frequency points, wherein, to the edge frequency range, the frequency that each frequency range comprises counts the geometric ratio minimizing or equal difference reduces or index reduces from middle frequency range.
Under another execution mode, burning mould device 302 is divided into 3 at least for the working frequency range with the base station and comprises the different frequency range of frequency points.
On the basis of above-described embodiment, the base station that provides in the present embodiment is operated under the gsm system.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. power-frequency compensation method, comprise: wave detector is converted into aanalogvoltage with the power output that the base station sends, and according to described aanalogvoltage and the difference of burning between the mould detection value power output is compensated, it is characterized in that described burning mould detection value obtains in the following way:
The working frequency range of described base station is divided into N comprises the different frequency range of frequency points, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1;
In each frequency range, select a frequency as sampling point, obtain to burn mould detection value;
Wherein, the described burning mould real output that is described base station and the one-to-one relationship between the described burning mould detection value.
2. method according to claim 1 is characterized in that, to described edge frequency range, the frequency number that each frequency range comprises reduces successively or reduces at random from described intermediate bands.
3. method according to claim 1 is characterized in that, to described edge frequency range, the frequency that each frequency range comprises counts the geometric ratio minimizing or equal difference reduces or index reduces from described intermediate bands.
4. method according to claim 1 is characterized in that, described N is more than or equal to 3.
5. according to each described method of claim 1 to 4, it is characterized in that described base station is operated under the global mobile communication gsm system.
6. a power-frequency compensation equipment is characterized in that, comprising:
Wave detector is used for the power output that the base station sends is converted to aanalogvoltage;
Burn the mould device, be divided into N for the working frequency range with the base station and comprise the different frequency range of frequency points, in a described N frequency range, the frequency points that the frequency points that intermediate bands comprises comprises greater than the edge frequency range, N is the positive integer greater than 1; In each frequency range, select a frequency as sampling point, obtain to burn mould detection value;
Compensator is used for carrying out output power back off according to the difference between described aanalogvoltage and the burning mould detection value;
Wherein, the described burning mould real output that is described base station and the one-to-one relationship between the described burning mould detection value.
7. equipment according to claim 6 is characterized in that, described burning mould device comprises:
First division unit is divided into N for the working frequency range with the base station and comprises the different frequency range of frequency points, and wherein, to described edge frequency range, the frequency number that each frequency range comprises reduces successively or reduces at random from described intermediate bands.
8. equipment according to claim 6 is characterized in that, described burning mould device comprises:
Second division unit is divided into N for the working frequency range with the base station and comprises the different frequency range of frequency points, and wherein, to described edge frequency range, the frequency that each frequency range comprises counts the geometric ratio minimizing or equal difference reduces or index reduces from described intermediate bands.
9. equipment according to claim 6 is characterized in that, described burning mould device is divided into 3 at least for the working frequency range with the base station and comprises the different frequency range of frequency points.
10. according to each described equipment in the claim 6 to 9, it is characterized in that described base station is operated under the global mobile communication gsm system.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/075523 WO2011131155A2 (en) | 2011-06-09 | 2011-06-09 | Method and device for compensating power according to frequency |
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| CN102257857A CN102257857A (en) | 2011-11-23 |
| CN102257857B true CN102257857B (en) | 2013-09-11 |
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| CN201180000997.5A Active CN102257857B (en) | 2011-06-09 | 2011-06-09 | Method and device for compensating power according to frequency |
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| CN (1) | CN102257857B (en) |
| WO (1) | WO2011131155A2 (en) |
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| CN109959819B (en) * | 2017-12-26 | 2021-08-31 | 宁波三星医疗电气股份有限公司 | Wide-frequency reactive error compensation algorithm for intelligent meter and intelligent meter thereof |
| CN113923766A (en) * | 2021-09-29 | 2022-01-11 | 青岛海信移动通信技术股份有限公司 | Power control method and device and electronic equipment |
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| CN200966052Y (en) * | 2006-09-08 | 2007-10-24 | 京信通信技术(广州)有限公司 | A time slot signal system automatic level control circuit |
| CN101499781A (en) * | 2008-01-28 | 2009-08-05 | 富士通株式会社 | Distortion compensating apparatus and power amplifier apparatus |
| CN101841902A (en) * | 2009-11-25 | 2010-09-22 | 上海华为技术有限公司 | Method and device for obtaining timeslot power |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20040033917A (en) * | 2002-10-16 | 2004-04-28 | 엘지전자 주식회사 | A device and a operating method of controlling output power for mobile phone |
| US7183847B2 (en) * | 2004-01-28 | 2007-02-27 | Ntt Docomo, Inc. | Multi-band look-up table type predistorter |
| CN100337491C (en) * | 2004-05-10 | 2007-09-12 | 华为技术有限公司 | Method and system for optimizing automatic power control |
| JP5234279B2 (en) * | 2008-12-27 | 2013-07-10 | 住友電気工業株式会社 | Distortion compensation circuit and radio base station |
| CN101621323A (en) * | 2009-07-31 | 2010-01-06 | 武汉虹信通信技术有限责任公司 | Method for optimizing flatness index of repeater |
| CN101815054B (en) * | 2010-04-06 | 2012-09-26 | 京信通信系统（中国）有限公司 | Digital communication system and method for improving flatness in signal band thereof |
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- 2011-06-09 WO PCT/CN2011/075523 patent/WO2011131155A2/en active Application Filing
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200966052Y (en) * | 2006-09-08 | 2007-10-24 | 京信通信技术(广州)有限公司 | A time slot signal system automatic level control circuit |
| CN101499781A (en) * | 2008-01-28 | 2009-08-05 | 富士通株式会社 | Distortion compensating apparatus and power amplifier apparatus |
| CN101841902A (en) * | 2009-11-25 | 2010-09-22 | 上海华为技术有限公司 | Method and device for obtaining timeslot power |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011131155A2 (en) | 2011-10-27 |
| CN102257857A (en) | 2011-11-23 |
| WO2011131155A3 (en) | 2012-05-03 |
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