MXPA03003179A - Metodo y sistema para control de ganancia automatico en un sistema de comunicacion duplex de division de tiempo. - Google Patents

Metodo y sistema para control de ganancia automatico en un sistema de comunicacion duplex de division de tiempo.

Info

Publication number
MXPA03003179A
MXPA03003179A MXPA03003179A MXPA03003179A MXPA03003179A MX PA03003179 A MXPA03003179 A MX PA03003179A MX PA03003179 A MXPA03003179 A MX PA03003179A MX PA03003179 A MXPA03003179 A MX PA03003179A MX PA03003179 A MXPA03003179 A MX PA03003179A
Authority
MX
Mexico
Prior art keywords
time slot
communication system
gain control
automatic gain
preamble
Prior art date
Application number
MXPA03003179A
Other languages
English (en)
Inventor
Leonid Kazakevich
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of MXPA03003179A publication Critical patent/MXPA03003179A/es

Links

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
    • H03G3/3052—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
    • H03G3/3078—Circuits generating control signals for digitally modulated signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H04L5/1484—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Bidirectional Digital Transmission (AREA)

Abstract

Un metodo y un sistema para control de ganancia automatico (AGC) en un sistema de comunicacion TDD, duplex de division de tiempo de la senal de comunicacion contiene un preambulo en formato en fase binaria de elevacion de clave (BPSK), localizado al principio de la ranura de tiempo. La estimacion de canal por el receptor mejora, dado a que el preambulo permite que todos los simbolos de datos dentro del desencadenador de datos, que sigue al preambulo, sea correctamente recibidos, lo que da por resultado un canal de velocidad media estimada que es mucho mas preciso. Tambien permite que el circuito AGC dentro del receptor TDD se simplifique grandemente.
MXPA03003179A 2000-10-10 2001-10-10 Metodo y sistema para control de ganancia automatico en un sistema de comunicacion duplex de division de tiempo. MXPA03003179A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23890700P 2000-10-10 2000-10-10
PCT/US2001/031612 WO2002032018A2 (en) 2000-10-10 2001-10-10 Time slot structure and automatic gain control method for a wireless communication system

Publications (1)

Publication Number Publication Date
MXPA03003179A true MXPA03003179A (es) 2004-05-05

Family

ID=22899813

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03003179A MXPA03003179A (es) 2000-10-10 2001-10-10 Metodo y sistema para control de ganancia automatico en un sistema de comunicacion duplex de division de tiempo.

Country Status (10)

Country Link
US (1) US20020054583A1 (es)
EP (1) EP1330886A2 (es)
JP (1) JP2004511954A (es)
KR (2) KR20030043995A (es)
CN (1) CN1475056A (es)
AU (1) AU2002211585A1 (es)
CA (1) CA2425464A1 (es)
MX (1) MXPA03003179A (es)
NO (1) NO20031590L (es)
WO (1) WO2002032018A2 (es)

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GB2378328B (en) 2001-08-01 2005-07-13 Ipwireless Inc AGC scheme and receiver for use in a wireless communication system
DE10138962B4 (de) * 2001-08-08 2011-05-12 Rohde & Schwarz Gmbh & Co. Kg Verfahren zur Erkennung von aktiven Codesequenzen
FR2830997B1 (fr) * 2001-10-12 2004-02-13 Thomson Licensing Sa Procede de controle de gain pour recepteur de signaux transmis par rafales et recepteur l'exploitant
EP1315292B1 (en) * 2001-11-21 2006-09-13 Sony Deutschland GmbH Digital controlled AGC
US20030123415A1 (en) * 2001-12-31 2003-07-03 Bysted Tommy Kristensen Transport format combination indicator signalling
SG129229A1 (en) * 2002-07-03 2007-02-26 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
US7995684B2 (en) * 2003-02-01 2011-08-09 Qualcomm, Incorporated Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver
WO2004084460A2 (en) 2003-03-14 2004-09-30 Interdigital Technology Corporation Enhanced automatic gain control mechanism for timeslotted data transmissions
US6873833B2 (en) * 2003-03-27 2005-03-29 Interdigital Technology Corporation Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system
WO2005029722A1 (en) * 2003-09-23 2005-03-31 Koninklijke Philips Electronics N.V. Initial synchronization for receivers
FR2863419A1 (fr) * 2003-12-09 2005-06-10 Thales Sa Controle automatique du gain d'un recepteur numerique pour reception de signaux a enveloppes discontinues
KR101122956B1 (ko) * 2004-07-06 2012-03-19 이성섭 개선된 ｒｆ 중계기
US7480498B2 (en) 2004-09-27 2009-01-20 Cisco Technology, Inc. Receiver gain control using a pilot signal
US7263363B2 (en) * 2004-09-30 2007-08-28 Motorola, Inc. Method for mitigating intermodulation interference using channel power estimation and attenuation in a two-way radio communications system
CN100341250C (zh) * 2004-12-24 2007-10-03 中兴通讯股份有限公司 一种自动增益控制方法
KR100710659B1 (ko) * 2006-01-31 2007-04-25 포스데이타 주식회사 Ｔｄｄ 방식을 사용하는 무선통신 시스템에서의자동이득제어 장치 및 방법
TWI318510B (en) 2006-07-17 2009-12-11 Realtek Semiconductor Corp Apparatus and method for automatic gain control
CN101179290B (zh) * 2006-11-09 2012-05-23 电信科学技术研究院 时分-同步码分多址系统中无线帧的传输方法
KR100897414B1 (ko) * 2006-12-04 2009-05-14 한국전자통신연구원 프리앰블과 헤더 데이터 구간에서 수행하는 자동 이득 제어장치 및 방법
CN101431318B (zh) * 2007-11-06 2011-02-09 瑞昱半导体股份有限公司 自动增益控制装置及其控制方法
CN101227212B (zh) * 2008-01-17 2012-11-07 北京北方烽火科技有限公司 一种单天线td-scdma发射链路中的增益补偿系统
CN103369664B (zh) * 2009-12-07 2017-07-04 高通股份有限公司 在td‑scdma上行链路同步中提高同步移位命令传输效率的方法和装置
CN102780553A (zh) * 2011-05-10 2012-11-14 北京联拓恒芯科技发展有限公司 一种发送同步码序列和进行同步的方法、系统及设备
FR3015722B1 (fr) * 2013-12-20 2017-02-24 Thales Sa Procede de generation de symboles pour le controle automatique de gain d'un signal a emettre
KR102190358B1 (ko) * 2014-12-10 2020-12-11 삼성전자주식회사 통신 시스템에서 이득 제어를 위한 방법 및 장치
GB2547459B (en) 2016-02-19 2019-01-09 Imagination Tech Ltd Dynamic gain controller
WO2019158183A1 (en) 2018-02-13 2019-08-22 Abb Schweiz Ag Automatic gain control in a wireless communication network for power grid control
CN117081687B (zh) * 2023-10-10 2023-12-15 四川思凌科微电子有限公司 一种rssi数据采样方法

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Publication number Priority date Publication date Assignee Title
FR2576472B1 (fr) * 1985-01-22 1988-02-12 Alcatel Thomson Faisceaux Procede et dispositif de commande automatique de gain d'un recepteur en acces multiple a repartition temporelle
US5301364A (en) * 1988-11-30 1994-04-05 Motorola, Inc. Method and apparatus for digital automatic gain control in a receiver
US5936949A (en) * 1996-09-05 1999-08-10 Netro Corporation Wireless ATM metropolitan area network
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
IT1295863B1 (it) * 1997-10-22 1999-05-28 Telital Spa Metodo e apparato di trasmissione e ricezione di segnali digitali e stima dei canali di comunicazione
US6574211B2 (en) * 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
WO1999044314A1 (de) * 1998-02-27 1999-09-02 Siemens Aktiengesellschaft Luftschnittstelle für heim-telekommunikationssysteme mit drahtloser, auf code- und zeitmultiplex basierender telekommunikation
US6252865B1 (en) * 1998-10-02 2001-06-26 Qualcomm, Inc. Methods and apparatuses for fast power control of signals transmitted on a multiple access channel

Also Published As

Publication number Publication date
KR20030043995A (ko) 2003-06-02
CN1475056A (zh) 2004-02-11
WO2002032018A2 (en) 2002-04-18
KR20030096331A (ko) 2003-12-24
EP1330886A2 (en) 2003-07-30
NO20031590D0 (no) 2003-04-08
AU2002211585A1 (en) 2002-04-22
US20020054583A1 (en) 2002-05-09
JP2004511954A (ja) 2004-04-15
NO20031590L (no) 2003-05-27
WO2002032018A3 (en) 2002-08-29
CA2425464A1 (en) 2002-04-18

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