CA2208842A1 - Booster system - Google Patents

Booster system

Info

Publication number
CA2208842A1
CA2208842A1 CA2208842A CA2208842A CA2208842A1 CA 2208842 A1 CA2208842 A1 CA 2208842A1 CA 2208842 A CA2208842 A CA 2208842A CA 2208842 A CA2208842 A CA 2208842A CA 2208842 A1 CA2208842 A1 CA 2208842A1
Authority
CA
Canada
Prior art keywords
signal
section
base band
parameter
canceling
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.)
Granted
Application number
CA2208842A
Other languages
French (fr)
Other versions
CA2208842C (en
Inventor
Kazuhito Ito
Hiroshi Suzuki
Manabu Nakada
Yoshio Ebine
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.)
NTT Docomo Inc
Original Assignee
Ntt Mobile Communications Network Inc.
Kazuhito Ito
Hiroshi Suzuki
Manabu Nakada
Yoshio Ebine
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 Ntt Mobile Communications Network Inc., Kazuhito Ito, Hiroshi Suzuki, Manabu Nakada, Yoshio Ebine filed Critical Ntt Mobile Communications Network Inc.
Publication of CA2208842A1 publication Critical patent/CA2208842A1/en
Application granted granted Critical
Publication of CA2208842C publication Critical patent/CA2208842C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15564—Relay station antennae loop interference reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)

Abstract

A booster system for transmitting a received wave after amplifying it comprises a receiving antenna section, a carrier combining section, a transmitting section, a transmitting antenna section and a parameter control section.
The carrier combining section multiplies a canceling signal by a cancel parameter to obtain a replica signal, then combines it with a received signal in at least one of the radio frequency band, the intermediate frequency band and the base band, and derives a combined base band signal from the combined signal. The transmitting section generates a send signal and a canceling signal by using a signal demodulated through the demodulation of the combined base band signal.
Based on the combined base band signal and the canceling signal, the parameter control section determines a canceling parameter such that the power of the combined base band signal is reduced, the parameter being provided to the carrier combining section.
CA002208842A 1995-10-26 1996-10-28 Booster system Expired - Fee Related CA2208842C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP279006/95 1995-10-26
JP27900695 1995-10-26
PCT/JP1996/003143 WO1997015991A1 (en) 1995-10-26 1996-10-28 Booster

Publications (2)

Publication Number Publication Date
CA2208842A1 true CA2208842A1 (en) 1997-05-01
CA2208842C CA2208842C (en) 2001-01-16

Family

ID=17605095

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002208842A Expired - Fee Related CA2208842C (en) 1995-10-26 1996-10-28 Booster system

Country Status (7)

Country Link
US (1) US5963847A (en)
EP (1) EP0801474B1 (en)
KR (1) KR100283612B1 (en)
CN (1) CN1084555C (en)
CA (1) CA2208842C (en)
DE (1) DE69635606T2 (en)
WO (1) WO1997015991A1 (en)

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JP4409639B2 (en) * 1998-06-10 2010-02-03 日本放送協会 Wraparound canceller
US6259893B1 (en) * 1998-11-03 2001-07-10 Ibiquity Digital Corporation Method and apparatus for reduction of FM interference for FM in-band on-channel digital audio broadcasting system
US6731904B1 (en) * 1999-07-20 2004-05-04 Andrew Corporation Side-to-side repeater
IL137078A (en) * 1999-07-20 2005-05-17 Andrew Corp Side-to-side repeater and adaptive cancellation for repeater
US6934511B1 (en) 1999-07-20 2005-08-23 Andrew Corporation Integrated repeater
KR100379378B1 (en) * 1999-09-13 2003-04-10 엘지전자 주식회사 Transmitter-receiver of relay center system
JP4612136B2 (en) * 1999-11-15 2011-01-12 Ｄｘアンテナ株式会社 amplifier
AU2001234463A1 (en) 2000-01-14 2001-07-24 Andrew Corporation Repeaters for wireless communication systems
US6385435B1 (en) * 2000-04-20 2002-05-07 Jhong Sam Lee Coupled interference concellation system for wideband repeaters in a cellular system
EP1204223B1 (en) * 2000-06-20 2007-02-28 Mitsubishi Denki Kabushiki Kaisha Repeater
GB2384652B (en) * 2002-01-29 2005-11-23 Hutchison Whampoa Three G Ip Improved communications with mobile terminals in restricted areas
EP1525678B1 (en) * 2002-06-21 2008-07-30 QUALCOMM Incorporated Wireless local area network repeater
US7058368B2 (en) * 2002-06-27 2006-06-06 Nortel Networks Limited Adaptive feedforward noise cancellation circuit
US8885688B2 (en) 2002-10-01 2014-11-11 Qualcomm Incorporated Control message management in physical layer repeater
US8122134B2 (en) * 2002-10-11 2012-02-21 Qualcomm Incorporated Reducing loop effects in a wireless local area network repeater
US8078100B2 (en) * 2002-10-15 2011-12-13 Qualcomm Incorporated Physical layer repeater with discrete time filter for all-digital detection and delay generation
CN100574147C (en) 2002-10-15 2009-12-23 高通股份有限公司 The WLAN (wireless local area network) transponder that is used for expanding coverage area of network with automatic gain control
US7230935B2 (en) * 2002-10-24 2007-06-12 Widefi, Inc. Physical layer repeater with selective use of higher layer functions based on network operating conditions
CA2504347A1 (en) 2002-11-15 2004-06-03 Widefi, Inc. Wireless local area network repeater with detection
JP3705271B2 (en) * 2003-02-03 2005-10-12 ソニー株式会社 Transmission method and transmission apparatus
US7009573B2 (en) * 2003-02-10 2006-03-07 Calamp Corp. Compact bidirectional repeaters for wireless communication systems
US8027642B2 (en) * 2004-04-06 2011-09-27 Qualcomm Incorporated Transmission canceller for wireless local area network
JP4960223B2 (en) 2004-05-13 2012-06-27 クゥアルコム・インコーポレイテッド Non-frequency conversion repeater for detection and media access control
US7187904B2 (en) 2004-06-03 2007-03-06 Widefi, Inc. Frequency translating repeater with low cost high performance local oscillator architecture
KR100661335B1 (en) * 2004-07-14 2006-12-27 에스케이 텔레콤주식회사 Multi-path interference removing for wireless relay system apparatus and method using by same channel frequency
KR20060005918A (en) * 2004-07-14 2006-01-18 (주)한텔 Apparatus and its method for generating pseudo pilot pn, and wireless repeating system using that
KR20060017139A (en) * 2004-08-20 2006-02-23 (주)한텔 Apparatus and its method for generating pilot pn, and wireless repeating system using that
JP2007180597A (en) * 2004-09-01 2007-07-12 Nokia Corp Relay device and relay method
US7764925B2 (en) 2004-09-07 2010-07-27 Samsung Electronics Co., Ltd. Wireless repeater using cross-polarized signals to reduce feedback in an FDD wireless network
WO2006081405A2 (en) 2005-01-28 2006-08-03 Widefi, Inc. Physical layer repeater configuration for increasing mino performance
KR101068057B1 (en) * 2006-03-31 2011-09-28 퀄컴 인코포레이티드 Enhanced physical layer repeater for operation in wimax systems
US20070232228A1 (en) * 2006-04-04 2007-10-04 Mckay David L Sr Wireless repeater with universal server base unit and modular donor antenna options
US7715785B2 (en) * 2006-04-21 2010-05-11 Powerwave Technologies, Inc. System and method for estimation and compensation of radiated feedback coupling in a high gain repeater
CA2645206C (en) * 2006-04-28 2014-09-16 Orica Explosives Technology Pty Ltd Wireless electronic booster, and methods of blasting
EP2013565B1 (en) 2006-04-28 2014-02-26 Orica Explosives Technology Pty Ltd Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof
CN101479961B (en) * 2006-07-03 2013-03-27 艾利森电话股份有限公司 Multi-antenna relay with self-interference cancellation
WO2008027531A2 (en) * 2006-09-01 2008-03-06 Qualcomm Incorporated Repeater having dual receiver or transmitter antenna configuration with adaptation for increased isolation
US8559379B2 (en) 2006-09-21 2013-10-15 Qualcomm Incorporated Method and apparatus for mitigating oscillation between repeaters
JP4875164B2 (en) * 2006-10-26 2012-02-15 クゥアルコム・インコーポレイテッド Repeater technology for multiple inputs and multiple outputs using beamformers
US8200170B2 (en) * 2008-04-07 2012-06-12 Nxp B.V. Cancellation of oscillator remodulation
KR100947613B1 (en) 2008-04-23 2010-03-15 한국전자통신연구원 Apparatus and Method of Feedback Cancellation for On-channel Repeaters
US8249540B1 (en) * 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55133148A (en) * 1979-04-04 1980-10-16 Nippon Telegr & Teleph Corp <Ntt> Interference wave removal system
US4317217A (en) * 1980-08-11 1982-02-23 Motorola, Inc. Tag generator for a same-frequency repeater
JPS5851632A (en) * 1981-09-24 1983-03-26 Nippon Telegr & Teleph Corp <Ntt> Radio relay system
JPS58204637A (en) * 1982-05-24 1983-11-29 Nippon Telegr & Teleph Corp <Ntt> System for compensating interference wave
US4475243A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Isolation method and apparatus for a same frequency repeater
JPS61202533A (en) * 1985-03-05 1986-09-08 Mitsubishi Electric Corp Radio relay device
US4776032A (en) * 1985-05-15 1988-10-04 Nippon Telegraph And Telephone Corporation Repeater for a same frequency with spillover measurement
JPS6269738A (en) * 1985-09-21 1987-03-31 Mitsubishi Electric Corp Gain control type transmitter/receiver
JPH02249321A (en) * 1989-03-22 1990-10-05 Toyo Commun Equip Co Ltd Relay system
JPH04103228A (en) * 1990-08-22 1992-04-06 Mitsubishi Electric Corp Radio repeater and radio equipment

Also Published As

Publication number Publication date
US5963847A (en) 1999-10-05
EP0801474B1 (en) 2005-12-21
CN1166897A (en) 1997-12-03
WO1997015991A1 (en) 1997-05-01
CN1084555C (en) 2002-05-08
KR987001163A (en) 1998-04-30
EP0801474A1 (en) 1997-10-15
DE69635606D1 (en) 2006-01-26
CA2208842C (en) 2001-01-16
EP0801474A4 (en) 1999-01-27
DE69635606T2 (en) 2006-07-27
KR100283612B1 (en) 2001-03-02

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