DE69528681D1 - Schnelle AGC für TDMA-Funksysteme - Google Patents

Schnelle AGC für TDMA-Funksysteme

Info

Publication number
DE69528681D1
DE69528681D1 DE69528681T DE69528681T DE69528681D1 DE 69528681 D1 DE69528681 D1 DE 69528681D1 DE 69528681 T DE69528681 T DE 69528681T DE 69528681 T DE69528681 T DE 69528681T DE 69528681 D1 DE69528681 D1 DE 69528681D1
Authority
DE
Germany
Prior art keywords
radio systems
tdma radio
fast agc
agc
fast
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
DE69528681T
Other languages
English (en)
Other versions
DE69528681T2 (de
Inventor
Nallepilli S Ramesh
Krishnamurthy Sreenath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
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.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of DE69528681D1 publication Critical patent/DE69528681D1/de
Application granted granted Critical
Publication of DE69528681T2 publication Critical patent/DE69528681T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
DE69528681T 1994-03-23 1995-03-16 Schnelle AGC für TDMA-Funksysteme Expired - Lifetime DE69528681T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/216,371 US5493712A (en) 1994-03-23 1994-03-23 Fast AGC for TDMA radio systems

Publications (2)

Publication Number Publication Date
DE69528681D1 true DE69528681D1 (de) 2002-12-05
DE69528681T2 DE69528681T2 (de) 2003-06-12

Family

ID=22806788

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69528681T Expired - Lifetime DE69528681T2 (de) 1994-03-23 1995-03-16 Schnelle AGC für TDMA-Funksysteme

Country Status (3)

Country Link
US (1) US5493712A (de)
EP (1) EP0674402B1 (de)
DE (1) DE69528681T2 (de)

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JP3243130B2 (ja) * 1994-10-31 2002-01-07 松下電器産業株式会社 アダプティブアンテナ付き受信装置
KR0133338B1 (ko) * 1994-12-16 1998-04-21 양승택 위성중계기용 디지털 자동이득제어장치
US5694436A (en) * 1995-07-21 1997-12-02 Chaw Khong Co., Ltd. Gain control system for handling periodic noises
AT407682B (de) * 1995-12-21 2001-05-25 Kapsch Ag Zwischenverstärker für eine relaisstation
US6026131A (en) * 1995-12-27 2000-02-15 Laurent; Souef Automatic gain control systems
US6580905B1 (en) * 1996-07-02 2003-06-17 Ericsson Inc. System and method for controlling the level of signals output to transmission media in a distributed antenna network
CA2232754A1 (en) * 1996-09-05 1998-03-12 Mitsubishi Denki Kabushiki Kaisha Gain control method and receiver
KR100193848B1 (ko) * 1996-10-05 1999-06-15 윤종용 대역확산통신기에 있어서 수신신호 이득 자동제어장치 및 방법
US6301238B1 (en) 1997-01-28 2001-10-09 Telefonaktiebolaget Lm Ericsson (Publ) Directional-beam generative apparatus and associated method
JP4020458B2 (ja) * 1997-06-19 2007-12-12 三菱電機株式会社 無線通信システム、データ送信機及びデータ受信機
FI105626B (fi) * 1997-12-29 2000-09-15 Nokia Networks Oy Vastaanottomenetelmä ja vastaanotin
JP3329264B2 (ja) * 1998-04-06 2002-09-30 日本電気株式会社 Ａｇｃ回路
US6324387B1 (en) * 1998-12-29 2001-11-27 Philips Electronics N.A. Corp. LNA control-circuit for receive closed loop automatic gain control
FI990354A (fi) * 1999-02-18 2000-08-19 Nokia Networks Oy Menetelmä automaattiseen voimakkuuden säätöön solukkoradioverkon tukia semassa
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
DE19918371C1 (de) 1999-04-22 2000-11-02 Siemens Ag Stochastische Sendeleistungseinstellung in einem Kanal zum willkürlichen Zugriff eines Funk-Kommunikationssystems
EP1058381A1 (de) * 1999-06-01 2000-12-06 Alcatel Methode zum empfang von Zugriffsantragen mit dynamikbegrenzten Einheiten
JP3551841B2 (ja) * 1999-06-09 2004-08-11 日本電気株式会社 受信機及びその利得制御方法
WO2000079748A1 (en) 1999-06-23 2000-12-28 At & T Wireless Services, Inc. Automatic gain control for ofdm receiver
US6285863B1 (en) * 1999-11-24 2001-09-04 Lucent Technologies Inc. System and method for providing automatic gain control with high dynamic range
US20010048727A1 (en) * 2000-01-10 2001-12-06 Schmutz Thomas R. Method and apparatus for automatic gain control on a time slot by time slot basis
ATE311037T1 (de) * 2000-07-12 2005-12-15 Motorola Inc Automatische verstärkungsregelschleife mit kurzer ansprechzeit für schmalbandige systeme
EP1402630B1 (de) * 2001-06-12 2006-06-21 Nokia Corporation Verfahren und vorrichtung zur automatischen verstärkungsregelung
GB2377128B (en) * 2001-06-29 2004-09-08 Nokia Corp Automatic gain control
US6873832B2 (en) * 2001-09-28 2005-03-29 Broadcom Corporation Timing based LNA gain adjustment in an RF receiver to compensate for intermodulation interference
DE10219360B4 (de) * 2002-04-30 2006-11-09 Advanced Micro Devices, Inc., Sunnyvale Leistungsnormierung in Wlan-Empfängern
US8194770B2 (en) * 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7002900B2 (en) * 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8320301B2 (en) * 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8170513B2 (en) * 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8134976B2 (en) * 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8570988B2 (en) * 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US20050135520A1 (en) * 2003-12-23 2005-06-23 Kevin Gamble Multi-branch radio frequency amplifying apparatus and method
CN100393168C (zh) * 2004-08-04 2008-06-04 中兴通讯股份有限公司 码分多址系统随机接入门限多径选择方法
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) * 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
CN101022288A (zh) * 2007-04-09 2007-08-22 互芯集成电路（北京）有限公司 码分多址通信系统中的动态多径检测方法及装置
JP5593233B2 (ja) * 2008-02-22 2014-09-17 マテリアルズ・アンド・テクノロジーズ・コーポレーション 片面式高スループットの湿式エッチングおよび湿式処理装置および方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602825A (en) * 1968-05-16 1971-08-31 Sylvania Electric Prod Pulse signal automatic gain control system including a resettable dump circuit
JPH0117855Y2 (de) * 1980-05-19 1989-05-24
JPS62216511A (ja) * 1986-03-18 1987-09-24 Nec Corp 自動利得制御装置
US5276685A (en) * 1988-11-30 1994-01-04 Motorola, Inc. Digital automatic gain control
US5638375A (en) * 1988-11-30 1997-06-10 Motorola, Inc. AGC isolation of information in TDMA systems
GB8915172D0 (en) * 1989-07-01 1989-08-23 Orbitel Mobile Communications Receiver gain control for radio telephone system
GB2243733A (en) * 1990-05-01 1991-11-06 Orbitel Mobile Communications Gain control based on average amplitude of i/p signal
US5184349A (en) * 1991-01-16 1993-02-02 Motorola, Inc. Amplitude control of a burst signal in a receiver
US5287555A (en) * 1991-07-22 1994-02-15 Motorola, Inc. Power control circuitry for a TDMA radio frequency transmitter

Also Published As

Publication number Publication date
EP0674402A1 (de) 1995-09-27
EP0674402B1 (de) 2002-10-30
US5493712A (en) 1996-02-20
DE69528681T2 (de) 2003-06-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition