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DE69635606D1 - Relaissender - Google Patents

Relaissender

Info

Publication number
DE69635606D1
DE69635606D1 DE69635606T DE69635606T DE69635606D1 DE 69635606 D1 DE69635606 D1 DE 69635606D1 DE 69635606 T DE69635606 T DE 69635606T DE 69635606 T DE69635606 T DE 69635606T DE 69635606 D1 DE69635606 D1 DE 69635606D1
Authority
DE
Germany
Prior art keywords
relay station
relay
station
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 - Fee Related
Application number
DE69635606T
Other languages
English (en)
Other versions
DE69635606T2 (de
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
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Mobile Communications Networks Inc
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 Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc filed Critical Nippon Telegraph and Telephone Corp
Publication of DE69635606D1 publication Critical patent/DE69635606D1/de
Application granted granted Critical
Publication of DE69635606T2 publication Critical patent/DE69635606T2/de
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)
DE69635606T 1995-10-26 1996-10-28 Relaissender Expired - Fee Related DE69635606T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP27900695 1995-10-26
JP27900695 1995-10-26
PCT/JP1996/003143 WO1997015991A1 (fr) 1995-10-26 1996-10-28 Reemetteur

Publications (2)

Publication Number Publication Date
DE69635606D1 true DE69635606D1 (de) 2006-01-26
DE69635606T2 DE69635606T2 (de) 2006-07-27

Family

ID=17605095

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69635606T Expired - Fee Related DE69635606T2 (de) 1995-10-26 1996-10-28 Relaissender

Country Status (7)

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

Families Citing this family (45)

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JP4409639B2 (ja) * 1998-06-10 2010-02-03 日本放送協会 回り込みキャンセラ
JP2954181B1 (ja) 1998-07-07 1999-09-27 御殿場日本電気株式会社 単一周波数放送波中継装置
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 (ko) * 1999-09-13 2003-04-10 엘지전자 주식회사 중계국 시스템의 송수신장치
JP4612136B2 (ja) * 1999-11-15 2011-01-12 Ｄｘアンテナ株式会社 増幅器
CA2397430A1 (en) 2000-01-14 2001-07-19 Breck W. Lovinggood 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
WO2001099308A1 (fr) 2000-06-20 2001-12-27 Mitsubishi Denki Kabushiki Kaisha Repeteur
GB2384652B (en) * 2002-01-29 2005-11-23 Hutchison Whampoa Three G Ip Improved communications with mobile terminals in restricted areas
BR0311966A (pt) * 2002-06-21 2005-04-26 Widefi Inc Aparelho para facilitar a comunicação sem fios em uma rede entre um primeiro dispositivo de comunicação e um segundo dispositivo de comunicação, rede de área local sem fios, repetidor para uma rede incluindo pelo menos primeira e segunda frequências de comunicação bidirecionais, rede operando em pelo menos primeira e segunda frequências de comunicação bidirecionais, dispositivo de extensão de cobertura sem fios, e, métodos para retransmitir um sinal detectado com amplificação e/ou conversão de frequência em um dispositivo de comunicação sem fios
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
AU2003274992A1 (en) * 2002-10-11 2004-05-04 Widefi, Inc. 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
ATE402527T1 (de) 2002-10-15 2008-08-15 Qualcomm Inc Wlan-repeater mit automatischer verstärkungsregelung für erweiterte netzabdeckung
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
BR0316218A (pt) 2002-11-15 2005-09-27 Widefi Inc Método e aparelho para detectar a presença de um sinal em um de pelo menos dois canais de frequência em um repetidor de translação de frequência para uso em uma rede de área local sem fios (wlan)
JP3705271B2 (ja) * 2003-02-03 2005-10-12 ソニー株式会社 送信方法及び送信装置
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
CN1993904B (zh) 2004-05-13 2011-09-07 高通股份有限公司 具有用于上行链路及下行链路同步之下行链路检测的非变频中继器
CN1985528B (zh) 2004-06-03 2010-06-09 高通股份有限公司 具有低成本高性能本振架构的变频中继器
KR20060005918A (ko) * 2004-07-14 2006-01-18 (주)한텔 의사 파일럿 ｐｎ 발생 장치 및 그 방법과 그를 이용한무선 중계 시스템
KR100661335B1 (ko) * 2004-07-14 2006-12-27 에스케이 텔레콤주식회사 동일 채널 주파수를 사용하는 무선중계시스템의 다중경로간섭제거 장치 및 방법
KR20060017139A (ko) * 2004-08-20 2006-02-23 (주)한텔 파일럿 ｐｎ 발생 장치 및 그 방법과 그를 이용한 무선중계 시스템
JP2007180597A (ja) * 2004-09-01 2007-07-12 Nokia Corp 中継器及び中継方法
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
EP2002565A4 (de) * 2006-03-31 2012-07-04 Qualcomm Inc Repeater mit verstärkter bitübertragungsschicht zur verwendung in wimax-systemen
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
ZA200807627B (en) * 2006-04-28 2009-12-30 Orica Explosives Tech Pty Ltd Wireless electronic booster, and methods of blasting
WO2007124538A1 (en) 2006-04-28 2007-11-08 Orica Explosives Technology Pty Ltd Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof
WO2008004916A1 (en) * 2006-07-03 2008-01-10 Telefonaktiebolaget Lm Ericsson (Publ) Multi-antenna relay with self-interference cancellation
JP4843088B2 (ja) * 2006-09-01 2011-12-21 クゥアルコム・インコーポレイテッド アイソレーション向上のための適応が行われたデュアル受信機アンテナ構成またはデュアル送信機アンテナ構成を有するリピータ
CN101595657B (zh) 2006-09-21 2014-07-09 高通股份有限公司 用于缓解中继器之间的振荡的方法和装置
KR20090074812A (ko) * 2006-10-26 2009-07-07 퀄컴 인코포레이티드 빔 형성기를 이용한 다중 입력 다중 출력을 위한 중계기 기술
WO2009125321A1 (en) * 2008-04-07 2009-10-15 Nxp B.V. Cancellation of oscillator remodulation
KR100947613B1 (ko) 2008-04-23 2010-03-15 한국전자통신연구원 동일채널 중계기의 궤환신호 제거방법 및 그 장치
US8249540B1 (en) * 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US12120716B1 (en) * 2020-06-26 2024-10-15 Resonant Sciences, LLC Initiating wideband simultaneous transmit and receive communications
US12287359B1 (en) 2021-11-18 2025-04-29 Resonant Sciences, LLC Using near-field testing to determine how a radome affects the RF characteristics of an antenna

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 (ja) * 1981-09-24 1983-03-26 Nippon Telegr & Teleph Corp <Ntt> 無線中継方式
JPS58204637A (ja) * 1982-05-24 1983-11-29 Nippon Telegr & Teleph Corp <Ntt> 干渉波補償方式
US4475243A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Isolation method and apparatus for a same frequency repeater
JPS61202533A (ja) * 1985-03-05 1986-09-08 Mitsubishi Electric Corp 無線中継装置
US4776032A (en) * 1985-05-15 1988-10-04 Nippon Telegraph And Telephone Corporation Repeater for a same frequency with spillover measurement
JPS6269738A (ja) * 1985-09-21 1987-03-31 Mitsubishi Electric Corp 利得制御形送受信機
JPH02249321A (ja) * 1989-03-22 1990-10-05 Toyo Commun Equip Co Ltd 中継方式
JPH04103228A (ja) * 1990-08-22 1992-04-06 Mitsubishi Electric Corp 無線中継装置と無線装置

Also Published As

Publication number Publication date
CA2208842A1 (en) 1997-05-01
KR987001163A (ko) 1998-04-30
DE69635606T2 (de) 2006-07-27
CN1166897A (zh) 1997-12-03
US5963847A (en) 1999-10-05
EP0801474A4 (de) 1999-01-27
EP0801474B1 (de) 2005-12-21
CA2208842C (en) 2001-01-16
EP0801474A1 (de) 1997-10-15
CN1084555C (zh) 2002-05-08
KR100283612B1 (ko) 2001-03-02
WO1997015991A1 (fr) 1997-05-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee