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JP4488332B2 - 通信システム及び受信機ユニットに用いられる回路 - Google Patents

通信システム及び受信機ユニットに用いられる回路 Download PDF

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Publication number
JP4488332B2
JP4488332B2 JP2001524264A JP2001524264A JP4488332B2 JP 4488332 B2 JP4488332 B2 JP 4488332B2 JP 2001524264 A JP2001524264 A JP 2001524264A JP 2001524264 A JP2001524264 A JP 2001524264A JP 4488332 B2 JP4488332 B2 JP 4488332B2
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JP
Japan
Prior art keywords
signal
power
scaling
samples
communication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2001524264A
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English (en)
Japanese (ja)
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JP2003509949A (ja
Inventor
ニング ヘ，
イェラン クラング，
トルビェルン リプストランド，
トマス エストマン，
Original Assignee
テレフオンアクチーボラゲット エル エム エリクソン（パブル）
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by テレフオンアクチーボラゲット エル エム エリクソン（パブル） filed Critical テレフオンアクチーボラゲット エル エム エリクソン（パブル）
Publication of JP2003509949A publication Critical patent/JP2003509949A/ja
Application granted granted Critical
Publication of JP4488332B2 publication Critical patent/JP4488332B2/ja
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
    • 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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0014—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
    • H04B1/0039—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2001524264A 1999-09-10 2000-09-05 通信システム及び受信機ユニットに用いられる回路 Expired - Lifetime JP4488332B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9903235A SE9903235L (sv) 1999-09-10 1999-09-10 Förfarande och anordning i ett telekommunikationssystem
SE9903235-1 1999-09-10
PCT/SE2000/001703 WO2001020807A1 (en) 1999-09-10 2000-09-05 Method and arrangement for automatic gain control of received signals

Publications (2)

Publication Number Publication Date
JP2003509949A JP2003509949A (ja) 2003-03-11
JP4488332B2 true JP4488332B2 (ja) 2010-06-23

Family

ID=20416947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001524264A Expired - Lifetime JP4488332B2 (ja) 1999-09-10 2000-09-05 通信システム及び受信機ユニットに用いられる回路

Country Status (7)

Country Link
JP (1) JP4488332B2 (sv)
AR (1) AR025612A1 (sv)
AU (1) AU7464100A (sv)
GB (1) GB2374216B (sv)
SE (1) SE9903235L (sv)
TW (1) TW507429B (sv)
WO (1) WO2001020807A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4490446B2 (ja) 2005-01-18 2010-06-23 株式会社エヌ・ティ・ティ・ドコモ 移動通信端末および移動通信端末に搭載される複数の受信装置を制御する方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299226A (en) * 1990-11-16 1994-03-29 Interdigital Technology Corporation Adaptive power control for a spread spectrum communications system and method
US5566201A (en) * 1994-09-27 1996-10-15 Nokia Mobile Phones Ltd. Digital AGC for a CDMA radiotelephone
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
JPH08335928A (ja) * 1995-06-07 1996-12-17 Oki Electric Ind Co Ltd 受信装置
EP0923823B1 (en) * 1996-09-02 2002-11-13 STMicroelectronics N.V. Improvements in, or relating to, multi-carrier transmission systems
JP2970550B2 (ja) * 1996-09-13 1999-11-02 日本電気株式会社 一括分波回路
JPH10112682A (ja) * 1996-10-03 1998-04-28 Canon Inc 無線通信システム、その送信電力制御方法および基地局

Also Published As

Publication number Publication date
JP2003509949A (ja) 2003-03-11
TW507429B (en) 2002-10-21
AU7464100A (en) 2001-04-17
SE9903235D0 (sv) 1999-09-10
WO2001020807A1 (en) 2001-03-22
SE9903235L (sv) 2001-03-11
AR025612A1 (es) 2002-12-04
GB2374216B (en) 2004-04-14
GB0204011D0 (en) 2002-04-03
GB2374216A (en) 2002-10-09

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