CN101136670A - Base station power control method and device - Google Patents
Base station power control method and device Download PDFInfo
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- CN101136670A CN101136670A CNA2007100007941A CN200710000794A CN101136670A CN 101136670 A CN101136670 A CN 101136670A CN A2007100007941 A CNA2007100007941 A CN A2007100007941A CN 200710000794 A CN200710000794 A CN 200710000794A CN 101136670 A CN101136670 A CN 101136670A
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- power
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- base station
- digital gain
- attenuation controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
This invention relates to a method and a device for controlling power of base stations, in which, the method includes: 1, setting an initial control digit for a digital gain attenuation controller, 2, reading the forward power got from adjustment by the controller, 3, comparing the difference between the forward power and a preset target power with the minimum adjusted power value of the controller to judge if the adjustment of the power is successful, 4, if the adjustment is not done, a new control digit is computed to repeat step 2 and 4 till to the success, which speeds up velocity of power adjustment.
Description
Technical field
The present invention relates to the mobile communication base station system of the communications field, more specifically, relate to a kind of base station power control method and device.
Background technology
The power level decision of adjusting when the coverage of base station signal is by calibration in the mobile communication system.The power of during calibration because base station fluctuates up and down, so influential to adjacent base station signal, therefore, the time that shortens calibration is necessary.
Current, mostly adopt 2 point-scores to approach when adjusting base station power, the number of times of adjustment is more.So easy speech quality that influences adjacent base station.
Therefore, need a kind of base station power control method, shortening the adjustment time of power, thereby when solving power and adjusting to the problem of Lin Qu influence.
Summary of the invention
The invention provides a kind of base station power control method and device, can calculate the control word of adjusting to target power value by present performance number, power is settled at one go adjust to target power according to the linear characteristics of digital gain attenuation controller.Regulate the speed thereby accelerate power, shorten the time that power is adjusted.
For achieving the above object, one aspect of the present invention provides a kind of base station power control method, and it can may further comprise the steps: step S102 is provided with the initial control word of digital gain attenuation controller; Step S104 reads the forward power that obtains through after the adjusting of digital gain attenuation controller; With the adjusting of judging forward power successfully whether step S106 adjusts performance number with the difference between forward power and the default target power with the minimum of digital gain attenuation controller and compares; And step S108, regulating under the unsuccessful situation, calculate the control word that makes new advances, and repeating step S104 is to step S108, up to regulating successfully.
According to an aspect of the present invention, step S106 can may further comprise the steps: when the absolute value of the difference between forward direction power and the target power is less than or equal to the minimum adjustment performance number of digital gain attenuation controller, judge the adjusting success of power.
In addition, step S106 can may further comprise the steps: when the absolute value of the difference between forward direction power and the target power is adjusted performance number greater than the minimum of digital gain attenuation controller, judge that the adjusting of power is unsuccessful.
According to an aspect of the present invention, step S108 can may further comprise the steps: target power and forward power are compared; When target power during greater than forward power, the gain controlling word new according to first algorithm computation; And when target power is less than or equal to forward power, the gain controlling word new according to second algorithm computation.
Wherein, first algorithm can be the step value of calculation control word; With step value and initial control word addition, obtain new control word; And initial control word is set to new control word.Second algorithm can may further comprise the steps: the step value of calculation control word; From initial control word, deduct step value, obtain new control word; And initial control word is set to new control word.
According to an aspect of the present invention, step value can be by calculating by following formula:
Wherein, Δ Ks represents step value, and Wra represents forward power, and Wsa represents target power, and P represents the minimum adjustment performance number of digital gain attenuation controller, and D represents the precision of digital gain attenuation controller.
Another aspect of the present invention also provides a kind of base station power control device, and it can comprise: the unit is set, is used to be provided with the initial control word of digital gain attenuation controller; Reading unit is used to read the forward power that obtains through after the adjusting of digital gain attenuation controller; With the adjusting of judging forward power successfully whether comparison judgment unit is used and the difference between forward power and the default target power is adjusted performance number with the minimum of digital gain attenuation controller is compared; And computing unit, regulating under the unsuccessful situation, calculate the control word that makes new advances.
Base station power control device according to a further aspect in the invention, in the time of can being less than or equal to the minimum adjustment performance number of digital gain attenuation controller for the absolute value of current difference between power and target power, comparison judgment unit is judged the adjusting success of power; And when the absolute value of the difference between forward direction power and the target power was adjusted performance number greater than the minimum of digital gain attenuation controller, comparison judgment unit judged that the adjusting of power is unsuccessful.
Wherein, computing unit can be used for: target power and forward power are compared; When target power during greater than forward power, the gain controlling word new according to first algorithm computation; And when target power is less than or equal to forward power, the gain controlling word new according to second algorithm computation.
According to a further aspect in the invention, first algorithm can be the step value of calculation control word; With step value and initial control word addition, obtain new control word; And initial control word is set to new control word.Second algorithm can may further comprise the steps: the step value of calculation control word; From initial control word, deduct step value, obtain new control word; And initial control word is set to new control word.
Wherein, step value can be by calculating by following formula:
Wherein, Δ Ks represents step value, and Wra represents forward power, and Wsa represents target power, and P represents the minimum adjustment performance number of digital gain attenuation controller, and D represents the precision of digital gain attenuation controller.
Therefore, with respect to existing method, the present invention has utilized the linear characteristic of digital gain attenuation controller, accurately calculates the gain controlling word of adjusting to target power value, and the fluctuation formula of avoiding adjusting is up and down shaken, and adjusts the time thereby shorten power.In addition, the present invention can greatly reduce the influence of power adjustment to adjacent carrier and sector, improves the communication quality of base station.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to base station power control method of the present invention;
Fig. 2 is the schematic diagram of hardware unit involved in the present invention;
Fig. 3 is the flow chart according to the base station power control method of the embodiment of the invention; And
Fig. 4 is the block diagram according to the base station power control device of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to base station power control method of the present invention.Base station power control method may further comprise the steps:
Step S102 is provided with the initial control word of digital gain attenuation controller;
Step S104 reads the forward power that obtains through after the adjusting of digital gain attenuation controller;
With the adjusting of judging forward power successfully whether step S106 adjusts performance number with the difference between forward power and the default target power with the minimum of digital gain attenuation controller and compares; And
Step S108 regulating under the unsuccessful situation, calculate the control word that makes new advances, and repeating step S104 is to step S108, up to regulating successfully.
Wherein, step S106 may further comprise the steps: when the absolute value of the difference between forward direction power and the target power is less than or equal to the minimum adjustment performance number of digital gain attenuation controller, judge the adjusting success of power.Step S106 may further comprise the steps: when the absolute value of the difference between forward direction power and the target power is adjusted performance number greater than the minimum of digital gain attenuation controller, judge that the adjusting of power is unsuccessful.
Further, step S108 may further comprise the steps: target power and forward power are compared; When target power during greater than forward power, the gain controlling word new according to first algorithm computation; And when target power is less than or equal to forward power, the gain controlling word new according to second algorithm computation.
Wherein, first algorithm is: the step value of calculation control word; With step value and initial control word addition, obtain new control word; And initial control word is set to new control word.Second algorithm may further comprise the steps: the step value of calculation control word; From initial control word, deduct step value, obtain new control word; And initial control word is set to new control word.
Step value is by calculating by following formula:
Wherein, Δ Ks represents step value, and Wra represents forward power, and Wsa represents target power, and P represents the minimum adjustment performance number of digital gain attenuation controller, and D represents the precision of digital gain attenuation controller.
Fig. 2 is the schematic diagram of hardware unit involved in the present invention, and Fig. 3 is the flow chart according to the base station power control method of the embodiment of the invention.Hereinafter will be in conjunction with the accompanying drawings 2 and 3 couples of the present invention of accompanying drawing do detailed explanation.Specifically may further comprise the steps:
Step S302, the adjustment of beginning forward power;
Step S304 uses initial gain controlling word Ks that the digital gain attenuation controller is set;
Step S306 reads forward power Wra from the radio frequency leading portion;
Step S308, Wra and target power Wsa relatively, if difference in error (the adjustable minimum power of digital gain attenuation controller) scope, step S318 is changeed in then power adjustment success; Otherwise change step S310;
Step S310, Wra and target power Wsa compare, if Wra greater than Wsa, changes step S212; Otherwise change step S314;
Step S312 is according to formula
Ks ＇=Ks+ Δ Ks calculates new gain controlling word; Wherein, Δ Ks represents step value, Wra represents forward power, Wsa represents target power, P represents the minimum adjustment performance number of digital gain attenuation controller, D represents the precision of digital gain attenuation controller, and Ks ＇ represents the yield value of next step adjustment, and Ks represents the yield value of the default setting of digital gain attenuation controller;
Step S314 is according to formula
Ks ＇=Ks-Δ Ks calculates new control word; Wherein, Δ Ks represents step value, Wra represents forward power, Wsa represents target power, p represents the minimum adjustment performance number of digital gain attenuation controller, D represents the precision of digital gain attenuation controller, and Ks ＇ represents the yield value of next step adjustment, and Ks represents the yield value of the default setting of digital gain attenuation controller;
Step S316 is provided with the digital gain attenuation controller with new control word, changes step S306; And
Step S318, the power adjustment is withdrawed from power adjustment success, and flow process finishes.
Fig. 4 is the block diagram according to base station power control device 400 of the present invention.As shown in Figure 4, this base station power control device 400 comprises: unit 402 is set, is used to be provided with the initial control word of digital gain attenuation controller; Reading unit 404 is used to read the forward power that obtains through after the adjusting of digital gain attenuation controller; With the adjusting of judging forward power successfully whether comparison judgment unit 406 is used and the difference between forward power and the default target power is adjusted performance number with the minimum of digital gain attenuation controller is compared; And computing unit 408, regulating under the unsuccessful situation, calculate the control word that makes new advances.
Wherein, when the absolute value of the difference between forward direction power and the target power was less than or equal to the minimum adjustment performance number of digital gain attenuation controller, comparison judgment unit 406 was judged the adjusting success of power.And when the absolute value of the difference between forward direction power and the target power was adjusted performance number greater than the minimum of digital gain attenuation controller, comparison judgment unit 406 judged that the adjusting of power is unsuccessful.
In addition, computing unit 408 is used for: target power and forward power are compared; When target power during greater than forward power, the gain controlling word new according to first algorithm computation; And when target power is less than or equal to forward power, the gain controlling word new according to second algorithm computation.
Wherein, first algorithm is: the step value of calculation control word; With step value and initial control word addition, obtain new control word; And initial control word is set to new control word.Second algorithm may further comprise the steps: the step value of calculation control word; From initial control word, deduct step value, obtain new control word; And initial control word is set to new control word.
Step value is by calculating by following formula:
Wherein, Δ Ks represents step value, and Wra represents forward power, and Wsa represents target power, and P represents the minimum adjustment performance number of digital gain attenuation controller, and D represents the precision of digital gain attenuation controller.
In sum, with respect to existing method, the present invention has utilized the linear characteristic of digital gain attenuation controller, accurately calculate the gain controlling word of adjusting to target power value, the fluctuation formula of avoiding adjusting is up and down shaken, adjust the time thereby shorten power, and greatly reduce the influence of power adjustment, improved the communication quality of base station adjacent carrier and sector.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a base station power control method is characterized in that, may further comprise the steps:
Step S102 is provided with the initial control word of digital gain attenuation controller;
Step S104 reads the forward power that obtains through after the described digital gain attenuation controller adjusting;
With the adjusting of judging described forward power successfully whether step S106 adjusts performance number with the difference between described forward power and the default target power with the minimum of described digital gain attenuation controller and compares; And
Step S108 under the unsuccessful situation of described adjusting, calculate the control word that makes new advances, and repeating said steps S104 regulates successfully up to described to described step S108.
2. base station power control method according to claim 1 is characterized in that, described step S106 may further comprise the steps:
When the absolute value of the difference between described forward power and the described target power is less than or equal to the minimum adjustment performance number of described digital gain attenuation controller, judge the adjusting success of described power.
3. base station power control method according to claim 1 is characterized in that, described step S106 may further comprise the steps:
When the absolute value of the difference between described forward power and the described target power is adjusted performance number greater than the minimum of described digital gain attenuation controller, judge that the adjusting of described power is unsuccessful.
4. according to each described base station power control method in the claim 1 to 3, it is characterized in that described step S108 may further comprise the steps:
Described target power and described forward power are compared;
When described target power during greater than described forward power, according to the described new gain controlling word of first algorithm computation; And
When described target power is less than or equal to described forward power, according to the described new gain controlling word of second algorithm computation.
5. base station power control method according to claim 4 is characterized in that, described first algorithm is:
Calculate the step value of described control word;
With described step value and described initial control word addition, obtain described new control word; And
Described initial control word is set to described new control word.
6. base station power control method according to claim 4 is characterized in that, described second algorithm may further comprise the steps:
Calculate the step value of described control word;
From described initial control word, deduct described step value, obtain described new control word; And
Described initial control word is set to described new control word.
7. according to claim 5 or 6 described base station power control methods, it is characterized in that described step value is by calculating by following formula:
Wherein, Δ Ks represents described step value, and Wra represents described forward power, and Wsa represents described target power, and P represents the minimum adjustment performance number of described digital gain attenuation controller, and D represents the precision of described digital gain attenuation controller.
8. a base station power control device is characterized in that, comprising:
The unit is set, is used to be provided with the initial control word of digital gain attenuation controller;
Reading unit is used to read the forward power that obtains through after the described digital gain attenuation controller adjusting;
With the adjusting of judging described forward power successfully whether comparison judgment unit is used and the difference between described forward power and the default target power is adjusted performance number with the minimum of described digital gain attenuation controller is compared; And
Computing unit under the unsuccessful situation of described adjusting, calculates the control word that makes new advances.
9. base station power control device according to claim 8, it is characterized in that, when the absolute value of the difference between described forward power and the described target power was less than or equal to the minimum adjustment performance number of described digital gain attenuation controller, described comparison judgment unit was judged the adjusting success of described power; And
When the absolute value of the difference between described forward power and the described target power was adjusted performance number greater than the minimum of described digital gain attenuation controller, described comparison judgment unit judged that the adjusting of described power is unsuccessful.
10. according to Claim 8 or 9 described base station power control device, it is characterized in that described computing unit is used for:
Described target power and described forward power are compared;
When described target power during greater than described forward power, according to the described new gain controlling word of first algorithm computation; And
When described target power is less than or equal to described forward power, according to the described new gain controlling word of second algorithm computation.
11. base station power control device according to claim 10 is characterized in that, described first algorithm is:
Calculate the step value of described control word;
With described step value and described initial control word addition, obtain described new control word; And
Described initial control word is set to described new control word.
12. base station power control device according to claim 10 is characterized in that, described second algorithm may further comprise the steps:
Calculate the step value of described control word;
From described initial control word, deduct described step value, obtain described new control word; And
Described initial control word is set to described new control word.
13., it is characterized in that described step value is by calculating by following formula according to claim 11 or 12 described base station power control device:
Wherein, Δ Ks represents described step value, and Wra represents described forward power, and Wsa represents described target power, and P represents the minimum adjustment performance number of described digital gain attenuation controller, and D represents the precision of described digital gain attenuation controller.
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| CN2007100007941A CN101136670B (en) | 2007-02-09 | 2007-02-09 | Base station power control method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN102404831A (en) * | 2011-10-19 | 2012-04-04 | 惠州Tcl移动通信有限公司 | Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal |
| WO2012048580A1 (en) * | 2010-10-11 | 2012-04-19 | 中兴通讯股份有限公司 | Method and apparatus for improving radio frequency index in real time in distributed network |
| CN105337673A (en) * | 2014-06-30 | 2016-02-17 | 展讯通信（上海）有限公司 | Mobile terminal automatic power control calibration method and device |
| CN115297538A (en) * | 2022-07-18 | 2022-11-04 | 中国人民解放军国防科技大学 | High-precision digital power real-time control method |
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| JP3183078B2 (en) * | 1994-02-28 | 2001-07-03 | 三菱電機株式会社 | Control signal generation circuit, automatic gain control circuit using the same, receiver using the same, and communication system using the same |
| KR100212053B1 (en) * | 1995-12-30 | 1999-08-02 | 윤종용 | Automatic control method and apparatus for bs power |
| US6259682B1 (en) * | 1997-11-25 | 2001-07-10 | Uniden America Corporation | Closed loop transmitter with improved stability and accuracy over a wide range of power levels having means for maintaining constant loop gain |
| EP1076420B1 (en) * | 1999-03-01 | 2007-01-10 | Mitsubishi Denki Kabushiki Kaisha | Transmission power control device and transmissiom power control method |
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| 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 |
| CN101951674B (en) * | 2010-09-16 | 2013-03-27 | 新邮通信设备有限公司 | Method and device for calibrating downlink channel gain |
| WO2012048580A1 (en) * | 2010-10-11 | 2012-04-19 | 中兴通讯股份有限公司 | Method and apparatus for improving radio frequency index in real time in distributed network |
| CN102448103A (en) * | 2010-10-11 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for intelligently improving wireless radio frequency index in distributed network in real time |
| CN102448103B (en) * | 2010-10-11 | 2014-07-02 | 中兴通讯股份有限公司 | Method and device for intelligently improving wireless radio frequency index in distributed network in real time |
| US9288775B2 (en) | 2010-10-11 | 2016-03-15 | Zte Corporation | Real-time improvement method and apparatus for distributed network radio frequency performance |
| CN102404831A (en) * | 2011-10-19 | 2012-04-04 | 惠州Tcl移动通信有限公司 | Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal |
| WO2013056600A1 (en) * | 2011-10-19 | 2013-04-25 | 惠州Tcl移动通信有限公司 | Inner-loop power control method for wcdma mobile terminal |
| CN102404831B (en) * | 2011-10-19 | 2014-08-27 | 惠州Tcl移动通信有限公司 | Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal |
| CN105337673A (en) * | 2014-06-30 | 2016-02-17 | 展讯通信（上海）有限公司 | Mobile terminal automatic power control calibration method and device |
| CN105337673B (en) * | 2014-06-30 | 2017-10-24 | 展讯通信（上海）有限公司 | Mobile terminal automated power control calibration method and device |
| CN115297538A (en) * | 2022-07-18 | 2022-11-04 | 中国人民解放军国防科技大学 | High-precision digital power real-time control method |
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