WO2000052837A1 - Dispositif et procede de controle de puissance d'emission - Google Patents
Dispositif et procede de controle de puissance d'emission Download PDFInfo
- Publication number
- WO2000052837A1 WO2000052837A1 PCT/JP1999/000984 JP9900984W WO0052837A1 WO 2000052837 A1 WO2000052837 A1 WO 2000052837A1 JP 9900984 W JP9900984 W JP 9900984W WO 0052837 A1 WO0052837 A1 WO 0052837A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- output
- power control
- transmission power
- transmission
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims description 26
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
- H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Definitions
- the present invention relates to a transmission power control device and a transmission power control capable of performing stable transmission power control without being influenced by the number of channels multiplexed in a modulation section in transmission power control of a CDMA communication system. It is about methods. Background art
- FIG. 5 is a block diagram showing a conventional transmission power control apparatus
- 1 is a spread spectrum modulation and multiplexing process for a plurality of user communication signals CH1 to CHn from a baseband unit (not shown), and It is a modulator that spreads the user communication signal of the band into a wideband signal.
- This communication method is called the CDMA (codedivisionmu 1 tipleaccess) method.
- Reference numeral 2 denotes a mixer that mixes the transmission signal output from the modulation unit 1 based on the signal of the local oscillator 3
- reference numeral 4 denotes a transmission signal that is mixed by the mixer 2 based on, for example, an attenuation adjustment signal for each slot.
- a variable attenuator 5 for controlling the attenuation is a power amplifier for amplifying and outputting the transmission signal attenuated by the variable attenuator 4.
- Reference numeral 6 denotes a detection circuit which takes in the amplified transmission signal at predetermined time intervals via the coupler 6a and performs detection.
- 7 is an AZD converter that performs AZD conversion of the transmission signal captured by the detection circuit 6, and 8 compares the output signal from the AZD converter 7 with the reference signal captured via the reference voltage generator 9 and compares the signals.
- the comparator 9 outputs a value.
- a reference voltage generation unit that generates a reference voltage from the total transmission power obtained by summing the respective powers of the communication signals.
- Reference numeral 10 denotes a comparison result output unit that outputs the comparison value from the comparator 8 to the variable attenuator 4.
- the modulation section 1 spread-modulates a plurality of user communication signals CH1 to CHn from the base span section, and multiplexes the spread-modulated signals.
- the mixer 2 mixes the transmission signal output from the modulation section 1 based on the signal of the local oscillator 3 and outputs the signal.
- the variable attenuator 4 controls the attenuation of the transmission signal mixed by the mixer 2 based on the attenuation adjustment signal output from the comparison result output unit 10, for example, for each slot.
- the transmission signal subjected to the attenuation control is amplified to a predetermined transmission power by the power amplifier 5 and output from an antenna (not shown).
- the attenuation amount adjustment signal is detected by the detection circuit 6 based on the total transmission power information from the modulation section 1 and the reference signal generated by the reference voltage generation section 9 and the transmission signal fetched via the coupler 6a. It is obtained by comparing the detected voltage signal obtained by the above with the comparator 8 and outputting the result to the comparison result output unit 10.
- the detection output signal output from the detection circuit 6 fluctuates greatly according to the number of channels multiplexed in the modulation section 1. For this reason, there has been a problem that transmission signals cannot be controlled with high accuracy.
- the present invention has been made to solve the above problems, and a transmission power control device capable of controlling transmission power with high accuracy without being influenced by the number of channels multiplexed in a modulation unit.
- the purpose is to obtain a transmission power control method. Disclosure of the invention
- the feedback means compares the detected output processing signal calculated by performing an effective value calculation process on the detected output signal of the transmission signal captured by the detection means with the reference signal, and attenuates the signal. It is intended to generate a volume adjustment signal.
- the transmission power control apparatus is characterized in that, in the feedback means, after performing the effective value calculation processing on the detection output signal of the transmission signal taken in by the detection means, the moving average processing is performed on the plurality of past calculation processing signals. Then, an attenuation adjustment signal is generated by comparing the moving average processed signal with a reference signal.
- a transmission power control method for a transmission power control apparatus includes: a detection output processing signal calculated by performing an effective value calculation process on a detection output signal of a transmission signal; The signal is compared with a signal to generate an attenuation adjustment signal.
- the transmission power control method of the transmission power control device is characterized in that, in the attenuation adjustment signal, after performing the effective value calculation processing of the detection output signal of the transmission signal, the moving average processing And a signal is generated by comparing the moving average processed signal with a reference signal.
- FIG. 1 is a configuration diagram showing a transmission power control device according to Embodiment 1 of the present invention.
- FIG. 2 is a configuration diagram showing an effective value calculation processing unit (RMS-IC) of the transmission power control device according to the first embodiment of the present invention.
- RMS-IC effective value calculation processing unit
- FIG. 3 is a configuration diagram showing a transmission power control device according to Embodiment 2 of the present invention.
- FIG. 4 is a configuration diagram showing a transmission power control device according to Embodiment 3 of the present invention.
- FIG. 5 is a configuration diagram showing a conventional transmission power control device. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a configuration diagram showing a transmission power control apparatus according to Embodiment 1 of the present invention.
- reference numeral 1 denotes spread modulation of a plurality of user communication signals CH1 to CHn from a baseband unit (not shown).
- a modulator (modulation means) that multiplexes and spreads a narrow-band user communication signal into a wide-band signal, and a mixer (modulation) that mixes a transmission signal output from the modulator 1 based on a signal of a local oscillator 3.
- Means, 4 are variable attenuators (variable decrement means) for controlling the electric power of the transmission signal mixed by the mixer 2 based on the attenuation adjustment signal for each slot, and 5 is a variable attenuator 4 This is a power amplifier that amplifies and outputs the transmission signal controlled by.
- the effective value calculation processing unit 22 includes a square division circuit 23 and operational amplifiers 24 and 25 connected to inputs and outputs of the square division circuit 23. Have been.
- Numeral 7 denotes an AZD converter that performs AZD conversion of the processing result of the rms operation processing performed by the rms operation processing unit 22, and 8 fetches the output signal from the AZD converter 7 and the reference voltage generation unit 9.
- a comparator feedback means for comparing the reference signal with the reference signal and outputting the comparison value; and 9, a reference voltage generator for generating a reference signal from the total transmission power obtained by summing the power of the user communication signals multiplexed in the modulation section 1
- Reference numeral 10 denotes a comparison result output unit (feedback means) which outputs the comparison result from the comparator 8 to the variable attenuator 4 as an attenuation adjustment signal.
- the modulation section 1 spread-modulates a plurality of user communication signals C H1 to C Hn from the base span section and multiplexes the spread-modulated signals. This multiplexed signal is output to mixer 2.
- the mixer 2 mixes the transmission signal output from the modulation unit 1 based on the signal of the local oscillator 3 and outputs the signal.
- the variable attenuator 4 controls the attenuation of the transmission signal mixed by the mixer 2 based on the attenuation adjustment signal from the comparison result output unit 10 for each slot, for example.
- the transmission signal subjected to the attenuation control is amplified by the power amplifier 5 into a signal of a predetermined transmission power, and output from an antenna (not shown).
- the detection circuit 21 takes in the transmission signal at predetermined time intervals via the coupler 6a and detects it to obtain a detection output signal.
- the effective value calculation processing unit 22 performs an effective value calculation process on the detection output signal of the transmission signal captured by the detection circuit 21 based on the following equation (1).
- the A / D converter 7 performs AZD conversion of the detection output processing signal subjected to the effective value processing by the effective value calculation processing section 22, and the comparator 8 outputs the output signal from the AZD converter 7 and the reference voltage generation section 9. Is compared with the reference signal taken in via, and the comparison value is output as an attenuation adjustment signal. Then, the comparison result output section 10 outputs the attenuation adjustment signal from the comparator 8 to the variable attenuator 4. I do.
- the variable attenuator 4 varies the power of the transmission signal based on the attenuation control signal.
- the detection output signal is processed by the effective value.
- an attenuation adjustment signal is generated by comparing a detection output processing signal obtained by performing an effective value calculation on the output of the detection circuit 21 with the reference signal. It is possible to obtain effects such as high-accuracy and stable control of transmission power without being influenced by the number of channels multiplexed in the modulation section 1.
- FIG. 3 is a configuration diagram showing a transmission power control apparatus according to Embodiment 2 of the present invention.
- the same reference numerals as in Embodiment 1 denote the same or similar elements, and a description thereof will not be repeated.
- the detection output processing signal calculated by the effective value calculation processing unit 22 is output to the comparator 8 via the AZD converter 7.
- the output of the detection circuit 6 is AZD-converted by the AZD converter 7 and the AZD-converted detection output signal is subjected to an effective value calculation process in the detection voltage generation unit 31.
- the moving average processing is performed on the results of the past multiple effective value processing, and the signal obtained by performing the moving average processing is output to the comparator 8.
- Reference numeral 31 denotes a detection voltage generation unit (feedback means), which includes an effective value calculation processing unit 32 that performs an effective value calculation process on a detection output signal of a transmission signal, and an effective value calculation processing unit 32 that performs processing. It is composed of a moving average calculator 33 that averages the obtained multiple times of past bit information based on the following equation (2).
- the detection voltage generation unit 31 performs an effective value calculation process on the detection output signal of the transmission signal, and then performs the past multiple effective value processing signals. Since the moving average processing is performed for the, the effect of being able to control transmission power with high accuracy and stability irrespective of the number of channels multiplexed in the modulation section 1 is obtained.
- Embodiment 3
- FIG. 4 is a configuration diagram showing a transmission power control apparatus according to Embodiment 3 of the present invention. I do.
- the A / D-converted detection output signal is processed by the detection voltage generation unit 31.
- the transmission signal detected by the detection circuit 6 is The detection output signal is processed by a detection voltage generation unit 31 including an effective value calculation processing unit 32 and a moving average calculation unit 33, and then subjected to AZD conversion by an AZD converter 7. According to the third embodiment, the same effect as in the second embodiment can be obtained.
- the transmission power control device and the transmission power control according to the present invention The method is capable of controlling the transmission power with high accuracy and stability in the transmission system of the CDMA communication system without being influenced by the number of channels multiplexed in the modulation unit.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99905333A EP1076420B1 (en) | 1999-03-01 | 1999-03-01 | Transmission power control device and transmissiom power control method |
CNB998056715A CN1143442C (zh) | 1999-03-01 | 1999-03-01 | 发送功率控制装置和发送功率控制方法 |
JP2000603161A JP3866042B2 (ja) | 1999-03-01 | 1999-03-01 | 送信電力制御装置および送信電力制御方法 |
DE1999634791 DE69934791T2 (de) | 1999-03-01 | 1999-03-01 | Verfahren und vorrichtung zur sendeleistungssteuerung |
PCT/JP1999/000984 WO2000052837A1 (fr) | 1999-03-01 | 1999-03-01 | Dispositif et procede de controle de puissance d'emission |
US09/679,629 US6396879B1 (en) | 1999-03-01 | 2000-10-05 | Transmission power controller and transmission power control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1999/000984 WO2000052837A1 (fr) | 1999-03-01 | 1999-03-01 | Dispositif et procede de controle de puissance d'emission |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/679,629 Continuation US6396879B1 (en) | 1999-03-01 | 2000-10-05 | Transmission power controller and transmission power control method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000052837A1 true WO2000052837A1 (fr) | 2000-09-08 |
Family
ID=14235077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/000984 WO2000052837A1 (fr) | 1999-03-01 | 1999-03-01 | Dispositif et procede de controle de puissance d'emission |
Country Status (6)
Country | Link |
---|---|
US (1) | US6396879B1 (ja) |
EP (1) | EP1076420B1 (ja) |
JP (1) | JP3866042B2 (ja) |
CN (1) | CN1143442C (ja) |
DE (1) | DE69934791T2 (ja) |
WO (1) | WO2000052837A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3322307B2 (ja) * | 1999-08-04 | 2002-09-09 | 日本電気株式会社 | 送信機 |
US6633766B1 (en) * | 2000-04-24 | 2003-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency selective RF output power calibration using digital and analog power measurements for use in a cellular telecommunications system |
US6618486B2 (en) * | 2000-05-03 | 2003-09-09 | Robert A. Orban | Controller for FM 412 multiplex power regulation |
DE10057439A1 (de) * | 2000-11-20 | 2002-05-23 | Nokia Mobile Phones Ltd | Spannungsregler für eine gepulste Last, insbesondere für einen Mobiltelefon- oder Telematik-Sender |
JP3690988B2 (ja) * | 2001-02-01 | 2005-08-31 | 株式会社日立国際電気 | プリディストーション歪み補償装置 |
FR2820910B1 (fr) * | 2001-02-15 | 2004-07-09 | Thomson Multimedia Sa | Dispositif d'emission de puissance variable |
US7570709B2 (en) * | 2001-03-08 | 2009-08-04 | Siemens Aktiengesellschaft | Automatic transmit power control loop with modulation averaging |
TW503345B (en) * | 2001-03-26 | 2002-09-21 | Mediatec Inc | Power controller |
KR100492960B1 (ko) * | 2002-09-12 | 2005-06-07 | 삼성전자주식회사 | 광대역 부호 분할 다중 접속 이동 통신 단말의 송신 전력안정화 장치 |
US20050227646A1 (en) * | 2004-03-18 | 2005-10-13 | Ryo Yamazaki | Detecting and maintaining linearity in a power amplifier system through comparing peak and RMS power levels |
CN100380841C (zh) * | 2004-09-28 | 2008-04-09 | 北京信威通信技术股份有限公司 | Tdd系统中直放站的功率自动调整装置与方法 |
CN101136670B (zh) * | 2007-02-09 | 2013-05-08 | 中兴通讯股份有限公司 | 基站功率控制方法和装置 |
US8620606B2 (en) | 2008-04-11 | 2013-12-31 | Bird Technologies Group Inc. | Transmitter power monitor |
JP5468401B2 (ja) * | 2010-01-28 | 2014-04-09 | グローリー株式会社 | 硬貨センサ、実効値算出方法および硬貨識別装置 |
JP5629191B2 (ja) * | 2010-05-28 | 2014-11-19 | ルネサスエレクトロニクス株式会社 | 電源装置 |
US9104224B2 (en) * | 2012-03-30 | 2015-08-11 | Checkpoint Systems, Inc. | Analog compensator circuit to compensate for cable loss |
JP6507669B2 (ja) * | 2015-01-26 | 2019-05-08 | 日本電気株式会社 | 基地局、通信システム及び送信電力制御方法 |
CN112333812B (zh) * | 2020-11-30 | 2022-09-13 | 紫光展锐(重庆)科技有限公司 | 数据传输方法、设备、装置及存储介质 |
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JPH0730444A (ja) * | 1993-07-08 | 1995-01-31 | Fujitsu Ltd | 送信機 |
JPH07336243A (ja) * | 1994-06-10 | 1995-12-22 | Matsushita Electric Ind Co Ltd | 送信出力制御装置 |
JPH08102767A (ja) * | 1994-09-30 | 1996-04-16 | Nec Corp | 送信器 |
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GB1536850A (en) * | 1975-09-15 | 1978-12-20 | Racal Instruments Ltd | Electrical measuring and noise suppression circuitry |
JP2540377B2 (ja) * | 1990-07-04 | 1996-10-02 | 三菱電機株式会社 | 自動出力電力制御装置 |
JP2973257B2 (ja) | 1992-07-23 | 1999-11-08 | 京セラ株式会社 | アナログ/デジタル共用方式の送信電力自動制御装置 |
US5485120A (en) * | 1994-07-28 | 1996-01-16 | Aval Communications Inc. | Feed-forward power amplifier system with adaptive control and control method |
JP2637930B2 (ja) | 1994-11-25 | 1997-08-06 | 埼玉日本電気株式会社 | 送信電力制御回路 |
US5715526A (en) * | 1995-09-08 | 1998-02-03 | Qualcomm Incorporated | Apparatus and method for controlling transmission power in a cellular communications system |
US6163399A (en) * | 1998-12-08 | 2000-12-19 | Nortel Networks Limited | Method and apparatus for suppressing transients in optical amplifiers |
-
1999
- 1999-03-01 CN CNB998056715A patent/CN1143442C/zh not_active Expired - Fee Related
- 1999-03-01 DE DE1999634791 patent/DE69934791T2/de not_active Expired - Lifetime
- 1999-03-01 WO PCT/JP1999/000984 patent/WO2000052837A1/ja active IP Right Grant
- 1999-03-01 JP JP2000603161A patent/JP3866042B2/ja not_active Expired - Lifetime
- 1999-03-01 EP EP99905333A patent/EP1076420B1/en not_active Expired - Lifetime
-
2000
- 2000-10-05 US US09/679,629 patent/US6396879B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0730444A (ja) * | 1993-07-08 | 1995-01-31 | Fujitsu Ltd | 送信機 |
JPH07336243A (ja) * | 1994-06-10 | 1995-12-22 | Matsushita Electric Ind Co Ltd | 送信出力制御装置 |
JPH08102767A (ja) * | 1994-09-30 | 1996-04-16 | Nec Corp | 送信器 |
Non-Patent Citations (1)
Title |
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See also references of EP1076420A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1076420A4 (en) | 2003-08-06 |
DE69934791D1 (de) | 2007-02-22 |
CN1143442C (zh) | 2004-03-24 |
JP3866042B2 (ja) | 2007-01-10 |
CN1299537A (zh) | 2001-06-13 |
EP1076420A1 (en) | 2001-02-14 |
EP1076420B1 (en) | 2007-01-10 |
US6396879B1 (en) | 2002-05-28 |
DE69934791T2 (de) | 2007-10-18 |
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