CN1798122A - Method and device for implementing automatic calibration in multicarrier system - Google Patents
Method and device for implementing automatic calibration in multicarrier system Download PDFInfo
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- CN1798122A CN1798122A CN 200410065931 CN200410065931A CN1798122A CN 1798122 A CN1798122 A CN 1798122A CN 200410065931 CN200410065931 CN 200410065931 CN 200410065931 A CN200410065931 A CN 200410065931A CN 1798122 A CN1798122 A CN 1798122A
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Abstract
The device consists of a multiplier, a digital up-conversion processor, a D/A converter, a radio frequency processor, a power amplifier, a power monitor, and a scaling gain controller. The method includes: after auto scaling begins, the back stage sends the auto-scaling parameters to the scaling gain controller to start scaling for total power; when difference between the value of total power and the value of total power preset by base station reaches in an approved range, starts auto-scaling for the single carrier wave; when the difference between the power value of signal carrier wave and the power value of the single carrier wave preset by base station reaches in an approved rang, stops the auto-scaling.
Description
Technical field
The present invention relates to the mobile communication base station system of the communications field, relate in particular to the method and apparatus that multicarrier system realizes auto-scaling.
Background technology
Present communication base station system, in order to reduce the complexity that forward direction sends link, the integrated level of raising system and capacity, great majority adopt the scheme of digital intermediate frequency multicarrier to realize, multi-carrier signal closes the road processing after being converted to intermediate frequency in number, carry out digital-to-analogue D/A again and convert analog if signal to, the shared analog radio frequency transmission of multi-carrier signal link is transmitted into multi-carrier signal in the air then.So in the sector that the base station covers, have a plurality of carrier signals, when therefore carrying out auto-scaling, except carrying out also must carrying out auto-scaling control to the single carrier wave in the multi-carrier signal the auto-scaling to whole radio frequency link in the base station.
In existing technology, some adopts the mode of in the frequency converter in number each carrier wave being adjusted, but because described upconverter generally all adopts the special chip of special-purpose manufacturer production now, the flexibility of this adjustment mode that makes is very limited; Some adopts the mode of closed loop auto-scaling, the mode by receiving the down-conversion demodulation to transmitting but this mode need increase independent reception link, increased the cost of system like this.
Summary of the invention
The objective of the invention is has increased the shortcoming of system cost in order to overcome the extra radio frequency link that increases of available technology adopting closed loop auto-scaling mode needs, has solved the problem of the auto-scaling very flexible that exists in the prior art simultaneously.
In order to reach above-mentioned said purpose, the invention provides the device that a kind of multicarrier system realizes auto-scaling, comprising:
Multiplier unit 101: gain for baseband signal I and Q and to adjust control;
Digital Up Convert processing unit 102: for the multichannel baseband signal of multiplier unit 101 output according to carrier wave f1 ... fn carries out Digital Up Convert to be handled, and closes the road then, the output digital medium-frequency signal;
D/A converting unit 103: the intermediate-freuqncy signal that the digital medium-frequency signal of Digital Up Convert processing unit 102 outputs is converted to simulation;
Radio frequency sends handles TX (Transmitter, sender) unit 104: the analog if signal of D/A converting unit 103 outputs is carried out filtering, and link gain decay control is carried out RF up-converter according to local oscillation signal LO, the output radiofrequency signal;
Power amplification PA (Power Amplifier, power amplification) unit 105: send the radiofrequency signal of handling 104 outputs of TX unit for radio frequency and carry out power amplification;
Power monitoring unit 106: the carrier power of carrying out link gross power and each carrier wave for the radiofrequency signal of power amplification PA unit 105 outputs is monitored;
Calibration gain controller unit 107: start auto-scaling according to the calibration order,, gain and adjust control so that all carrier waves are all finished auto-scaling according to power monitoring unit 106 feedacks and sector of base station power and gain information.
A kind of multicarrier system provided by the invention realizes that the method for auto-scaling may further comprise the steps:
Step 201: auto-scaling begins;
Step 202: the parameter that auto-scaling is set;
Step 203: start the gross power auto-scaling;
Step 204: the gross power numerical value of readout power monitoring unit;
Step 205: the total power value that the numerical value and the base station of step 204 are scheduled to compares, if the numerical value of step 204 equals the predetermined total power value in base station, then execution in step 208, if the numerical value of step 204 is less than the predetermined total power value in base station, then execution in step 206, if the numerical value of step 204 is greater than the predetermined total power value in base station, then execution in step 207;
Step 206: according to the numerical value of step-length increase TX unit attenuation controller, circulation execution in step 204,205 is up to execution in step 208;
Step 207: according to the numerical value of step-length reduction TX unit attenuation controller, circulation execution in step 204,205 is up to execution in step 208;
Step 208: the auto-scaling that starts single carrier wave;
Step 209: the numerical value of the power of the single carrier wave of readout power monitoring;
Step 210: the performance number of the single carrier wave that the numerical value of step 209 and base station is predetermined compares, if the numerical value of step 209 equals the performance number of the predetermined single carrier wave in base station, then execution in step 213, if the numerical value of step 209 is less than the performance number of the predetermined single carrier wave in base station, then execution in step 211, if the numerical value of step 209 is greater than the performance number of the predetermined single carrier wave in base station, then execution in step 212;
Step 211: according to the numerical value of step-length increase multiplier, circulation execution in step 209,210 is up to execution in step 213;
Step 212: according to the numerical value of step-length reduction multiplier, circulation execution in step 209,210 is up to execution in step 213;
Step 213: judge whether that all carrier waves have all finished auto-scaling, if not, be circulated back to step 208 and begin to carry out, if then execution in step 214;
Step 214: stop auto-scaling.
Adopt method and apparatus of the present invention, compared with prior art, realized the flexible automatic calibration of multicarrier, save unnecessary based on feedback link, saved the cost of system, improved the adaptability of mobile communication base station system in the applied environment of complexity.
Description of drawings
Fig. 1 is the theory diagram that a kind of multicarrier system of the present invention realizes the method and apparatus of auto-scaling;
Fig. 2 adopts multicarrier system of the present invention to realize the flow chart of automatic marking method;
Fig. 3 adopts a specific embodiment schematic diagram of the present invention.
Embodiment
The present invention is described further below in conjunction with accompanying drawing.
Fig. 1 has shown that the multicarrier system of the present invention's utilization realizes the basic principle block diagram of the method and apparatus of auto-scaling, and basic principle can be summarized as following step:
Multiplier unit 101: gain for baseband signal I and Q and to adjust control;
Digital Up Convert processing unit 102: with multichannel baseband signal input DUC (the Digital UpConvertor of multiplier unit 101 outputs, digital up converter) according to carrier wave f1 ... fn carries out Digital Up Convert to be handled, close the road then, the output digital medium-frequency signal;
D/A converting unit 103: the intermediate-freuqncy signal that the digital medium-frequency signal of Digital Up Convert processing unit 102 outputs is converted to simulation;
Radio frequency sends handles TX unit 104: the analog if signal of D/A converting unit 103 outputs is carried out filtering, and link gain decay control is carried out RF up-converter according to local oscillation signal LO, the output radiofrequency signal;
Power amplification PA unit 105: send the radiofrequency signal of handling 104 outputs of TX unit for radio frequency and carry out power amplification;
Power monitoring unit 106: the carrier power of carrying out link gross power and each carrier wave for the radiofrequency signal of power amplification PA unit 105 outputs is monitored;
Calibration gain controller unit 107: start auto-scaling according to the calibration order, according to power monitoring unit 106 feedacks and sector of base station power and gain information, multiplier unit 101 and radio frequency are sent the attenuation controller of handling in the TX unit 104 gain and adjust control.
Fig. 2 adopts multicarrier system of the present invention to realize the flow chart of automatic marking method.This flow chart starts from step 201, starts auto-scaling; Step 202 is provided with the parameter of auto-scaling; Step 203 starts the gross power auto-scaling; The numerical value of the gross power of step 204 readout power monitoring; The total power value that step 205 is scheduled to the numerical value and the base station of step 204 compares, if the numerical value of step 204 equals the predetermined total power value in base station (referring to the approximately equal of the predetermined total power value in gross power numerical value and base station in the scope that error allows), then execution in step 208; If the numerical value of step 204 is less than the predetermined total power value in base station, then execution in step 206, and according to the numerical value of step-length increase TX unit attenuation controller, circulation execution in step 204,205 is up to execution in step 208; If the numerical value of step 204 is greater than the predetermined total power value in base station, then execution in step 207, according to the numerical value of step-length reduction TX unit attenuation controller, circulation execution in step 204,205; Up to execution in step 208.Step 208 starts single carrier power auto-scaling; The magnitude of power of the single carrier wave of step 209 readout power monitoring; Step 210 compares the performance number of the single carrier wave that the numerical value and the base station of step 209 are scheduled to, if the numerical value of step 209 equals the performance number (referring to the approximately equal in the scope that error allows) of the predetermined single carrier wave in base station, then execution in step 213; If the numerical value of step 209 is less than the performance number of the predetermined single carrier wave in base station, then execution in step 211, and according to the numerical value of step-length increase multiplier, circulation execution in step 209,210 is up to execution in step 213; If the numerical value of step 209 is greater than the performance number of the predetermined single carrier wave in base station, then execution in step 212, according to the numerical value of step-length reduction multiplier, circulation execution in step 209,210; Up to execution in step 213.Step 213 judges whether that all carrier waves have all finished auto-scaling, if not, then is circulated back to step 208 and begins to carry out, if then execution in step 214, stop auto-scaling.
Fig. 3 adopts a specific embodiment of the present invention.Be the system of one four carrier wave, finish each the carrier wave auto-scaling of four carrier waves and the auto-scaling of sector gross power.Its basic principle is summarised as following steps:
Multiplier unit 301: No. four multipliers are arranged, respectively for baseband signal I1 ... I4 and Q1 ... Q4 gains and adjusts control;
TSP (Transmit Signal Processor, send signal processor) and DAC (Digital Analog Convertor, digital to analog converter) unit 302: for the multichannel baseband signal I1 of multiplier unit 301 outputs ... I4 and Q1 ... Q4 input digit upconversion process unit is that TSP carries out the Digital Up Convert processing, close the road, described TSP is that a plurality of DUC and numeral are closed the road, the digital medium-frequency signal input DAC of Digital Up Convert processing unit output is carried out the D/A conversion, the output analog if signal;
Radio frequency sends handles TX unit 303: the analog if signal of 302 outputs is carried out filtering, link gain decay control, RF up-converter, output radiofrequency signal;
Power amplification PA unit 304: send the radiofrequency signal of handling 303 outputs of TX unit for radio frequency and carry out power amplification;
Power monitoring unit 305: the carrier power of carrying out link gross power and each carrier wave for the radiofrequency signal of power amplification PA unit 304 outputs is monitored;
Calibration gain controller unit 306: start auto-scaling according to the calibration order, according to power monitoring unit 305 feedacks and sector of base station power and gain information, multiplier unit 301 and radio frequency are sent the attenuation controller of handling in the TX unit 303 gain and adjust control.
The present invention can carry out independently auto-scaling to any carrier wave of multicarrier system, has increased the flexibility of system, has improved the applicability of system, has reduced the cost of system.The present invention goes for various communication systems.
Claims (2)
1, a kind of multicarrier system realizes the device of auto-scaling, comprising:
Digital Up Convert processing unit (102);
D/A converting unit (103): convert described Digital Up Convert processing unit (102) output signal to analog if signal;
Radio frequency sends handles TX unit (104): the analog if signal of D/A converting unit (103) output is carried out filtering, and link gain decay control is carried out RF up-converter according to local oscillation signal L0, the output radiofrequency signal;
Power amplification PA unit (105): send the radiofrequency signal of handling TX unit (104) output for radio frequency and carry out power amplification;
It is characterized in that, also comprise:
Multiplier unit (101): gain for baseband signal I and Q and to adjust control; Described Digital Up Convert processing unit (102) carries out Digital Up Convert to the multichannel baseband signal of described multiplier unit (101) output according to carrier wave f1..fn to be handled, and closes the road then, the output digital medium-frequency signal;
Power monitoring unit (106): the carrier power of carrying out link gross power and each carrier wave for the radiofrequency signal of power amplification PA unit (105) output is monitored;
Calibration gain controller unit (107): start auto-scaling according to the calibration order,, gain and adjust control so that all carrier waves are all finished auto-scaling according to power monitoring unit (106) feedack and sector of base station power and gain information.
2, a kind of multicarrier system realizes the method for auto-scaling, it is characterized in that:
Step 201: auto-scaling begins;
Step 202: the parameter that auto-scaling is set;
Step 203: start the gross power auto-scaling;
Step 204: the gross power numerical value of readout power monitoring unit;
Step 205: the total power value that the numerical value and the base station of step 204 are scheduled to compares, if the numerical value of step 204 equals the predetermined total power value in base station, then execution in step 208, if the numerical value of step 204 is less than the predetermined total power value in base station, then execution in step 206, if the numerical value of step 204 is greater than the predetermined total power value in base station, then execution in step 207;
Step 206: according to the numerical value of step-length increase TX unit attenuation controller, circulation execution in step 204,205 is up to execution in step 208;
Step 207: according to the numerical value of step-length reduction TX unit attenuation controller, circulation execution in step 204,205 is up to execution in step 208;
Step 208: the auto-scaling that starts single carrier wave;
Step 209: the numerical value of the power of the single carrier wave of readout power monitoring;
Step 210: the performance number of the single carrier wave that the numerical value of step 209 and base station is predetermined compares, if the numerical value of step 209 equals the performance number of the predetermined single carrier wave in base station, then execution in step 213, if the numerical value of step 209 is less than the performance number of the predetermined single carrier wave in base station, then execution in step 211, if the numerical value of step 209 is greater than the performance number of the predetermined single carrier wave in base station, then execution in step 212;
Step 211: according to the numerical value of step-length increase multiplier, circulation execution in step 209,210 is up to execution in step 213;
Step 212: according to the numerical value of step-length reduction multiplier, circulation execution in step 209,210 is up to execution in step 213;
Step 213: judge whether that all carrier waves have all finished auto-scaling, if not, be circulated back to step 208 and begin to carry out, if then execution in step 214;
Step 214: stop auto-scaling.
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| CNB2004100659316A CN100574301C (en) | 2004-12-24 | 2004-12-24 | A kind of multicarrier system realizes the method for auto-scaling |
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| CNB2004100659316A CN100574301C (en) | 2004-12-24 | 2004-12-24 | A kind of multicarrier system realizes the method for auto-scaling |
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| CN100574301C CN100574301C (en) | 2009-12-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115047A1 (en) * | 2008-03-20 | 2009-09-24 | 华为技术有限公司 | Automatic gain correction method and transmitter |
| CN101136895B (en) * | 2007-03-14 | 2010-06-02 | 中兴通讯股份有限公司 | Automatic scaling method based on case process in multi-carrier system |
| WO2010148687A1 (en) * | 2009-12-07 | 2010-12-29 | 中兴通讯股份有限公司 | Downlink radio frequency calibration method and device |
| CN101170331B (en) * | 2007-11-13 | 2011-05-25 | 中兴通讯股份有限公司 | Marking method and device for carrier transmission power of multi-carrier radio communication system |
| CN101282143B (en) * | 2007-04-05 | 2012-09-05 | 大唐移动通信设备有限公司 | Apparatus and method for measuring radio frequency emitter power |
| CN101170332B (en) * | 2007-11-13 | 2012-10-10 | 中兴通讯股份有限公司 | Marking method and device for carrier power of multi-carrier radio communication system |
| CN103297152A (en) * | 2012-02-23 | 2013-09-11 | 中兴通讯股份有限公司 | Method and device for calibrating emulation device |
| WO2018054083A1 (en) * | 2016-09-22 | 2018-03-29 | 深圳市中兴微电子技术有限公司 | Power calibration method, apparatus and computer readable storage medium |
-
2004
- 2004-12-24 CN CNB2004100659316A patent/CN100574301C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136895B (en) * | 2007-03-14 | 2010-06-02 | 中兴通讯股份有限公司 | Automatic scaling method based on case process in multi-carrier system |
| CN101282143B (en) * | 2007-04-05 | 2012-09-05 | 大唐移动通信设备有限公司 | Apparatus and method for measuring radio frequency emitter power |
| CN101170331B (en) * | 2007-11-13 | 2011-05-25 | 中兴通讯股份有限公司 | Marking method and device for carrier transmission power of multi-carrier radio communication system |
| CN101170332B (en) * | 2007-11-13 | 2012-10-10 | 中兴通讯股份有限公司 | Marking method and device for carrier power of multi-carrier radio communication system |
| WO2009115047A1 (en) * | 2008-03-20 | 2009-09-24 | 华为技术有限公司 | Automatic gain correction method and transmitter |
| WO2010148687A1 (en) * | 2009-12-07 | 2010-12-29 | 中兴通讯股份有限公司 | Downlink radio frequency calibration method and device |
| CN101730210B (en) * | 2009-12-07 | 2012-10-10 | 中兴通讯股份有限公司 | Method and device for calibrating downlink radio frequency |
| CN103297152A (en) * | 2012-02-23 | 2013-09-11 | 中兴通讯股份有限公司 | Method and device for calibrating emulation device |
| CN103297152B (en) * | 2012-02-23 | 2016-12-21 | 中兴通讯股份有限公司 | The calibrating method of a kind of hard emulator and device |
| WO2018054083A1 (en) * | 2016-09-22 | 2018-03-29 | 深圳市中兴微电子技术有限公司 | Power calibration method, apparatus and computer readable storage medium |
| CN107863973A (en) * | 2016-09-22 | 2018-03-30 | 深圳市中兴微电子技术有限公司 | A kind of power calibration method and apparatus |
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|---|---|
| CN100574301C (en) | 2009-12-23 |
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Granted publication date: 20091223 Termination date: 20171224 |