CN100359821C - 用于改进接收的无线电信号质量的系统和方法 - Google Patents

用于改进接收的无线电信号质量的系统和方法 Download PDF

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Publication number
CN100359821C
CN100359821C CNB971816980A CN97181698A CN100359821C CN 100359821 C CN100359821 C CN 100359821C CN B971816980 A CNB971816980 A CN B971816980A CN 97181698 A CN97181698 A CN 97181698A CN 100359821 C CN100359821 C CN 100359821C
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China
Prior art keywords
signal
frequency
antenna
delay
signals
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Expired - Fee Related
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CNB971816980A
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English (en)
Chinese (zh)
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CN1245600A (zh
Inventor
S·钦纳克舒
G·E·波托姆莱
P·W·登特
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Ericsson Inc
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Ericsson Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • H04B1/126—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means having multiple inputs, e.g. auxiliary antenna for receiving interfering signal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
CNB971816980A 1996-12-17 1997-12-15 用于改进接收的无线电信号质量的系统和方法 Expired - Fee Related CN100359821C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/768,319 1996-12-17
US08/768,319 US6034987A (en) 1996-12-17 1996-12-17 System for improving the quality of a received radio signal

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN200710104007.8A Division CN101056134A (zh) 1996-12-17 1997-12-15 用于改进接收的无线电信号质量的系统和方法

Publications (2)

Publication Number Publication Date
CN1245600A CN1245600A (zh) 2000-02-23
CN100359821C true CN100359821C (zh) 2008-01-02

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Family Applications (2)

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CNB971816980A Expired - Fee Related CN100359821C (zh) 1996-12-17 1997-12-15 用于改进接收的无线电信号质量的系统和方法
CN200710104007.8A Pending CN101056134A (zh) 1996-12-17 1997-12-15 用于改进接收的无线电信号质量的系统和方法

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CN200710104007.8A Pending CN101056134A (zh) 1996-12-17 1997-12-15 用于改进接收的无线电信号质量的系统和方法

Country Status (10)

Country Link
US (2) US6034987A (https=)
EP (1) EP0947058B1 (https=)
JP (1) JP4104023B2 (https=)
CN (2) CN100359821C (https=)
AU (1) AU5521098A (https=)
BR (1) BR9713943A (https=)
CA (1) CA2275283C (https=)
DE (1) DE69721048T2 (https=)
TW (1) TW362311B (https=)
WO (1) WO1998027663A2 (https=)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6006075A (en) * 1996-06-18 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
JPH10257005A (ja) * 1997-03-12 1998-09-25 Sony Corp 通信方法及び送信装置並びに受信装置
US6185258B1 (en) 1997-09-16 2001-02-06 At&T Wireless Services Inc. Transmitter diversity technique for wireless communications
WO1999023766A2 (en) * 1997-10-31 1999-05-14 At & T Wireless Services, Inc. Maximum likelihood detection of concatenated space-time codes for wireless applications with transmitter diversity
US6188736B1 (en) 1997-12-23 2001-02-13 At&T Wireless Svcs. Inc. Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
SE522587C2 (sv) * 1998-02-16 2004-02-24 Ericsson Telefon Ab L M Förfarande och mottagaranordning för mottagning av upprepade skurar i ett radiokommunikationssystem
US6459740B1 (en) 1998-09-17 2002-10-01 At&T Wireless Services, Inc. Maximum ratio transmission
EP1073214B1 (en) * 1999-02-16 2008-12-17 Mitsubishi Denki Kabushiki Kaisha Radio communication system, transmitter and receiver
US6377609B1 (en) * 1999-03-05 2002-04-23 Neptune Technology Group Inc. Spread spectrum frequency hopping system and method
DE19931236C2 (de) * 1999-07-07 2002-05-29 Siemens Ag Verfahren zur Zuweisung von Übertragungskapazität zu Verbindungen in einem Funk-Kommunikationssystem
US6693971B1 (en) * 2000-02-29 2004-02-17 Bae Systems Information And Electronic Systems Integration Inc. Wideband co-site interference reduction apparatus
JP3331595B2 (ja) * 2000-06-05 2002-10-07 日東紡績株式会社 室内環境設計システム、室内環境評価システム、室内環境設計方法及び室内環境評価方法
WO2002007341A2 (en) * 2000-07-14 2002-01-24 Ip.Access Ltd. Cellular radio telecommunication system
US6694147B1 (en) * 2000-09-15 2004-02-17 Flarion Technologies, Inc. Methods and apparatus for transmitting information between a basestation and multiple mobile stations
US7339955B2 (en) * 2000-09-25 2008-03-04 Pulse-Link, Inc. TDMA communication method and apparatus using cyclic spreading codes
US7031371B1 (en) * 2000-09-25 2006-04-18 Lakkis Ismail A CDMA/TDMA communication method and apparatus for wireless communication using cyclic spreading codes
US6983243B1 (en) * 2000-10-27 2006-01-03 Lucent Technologies Inc. Methods and apparatus for wireless transmission using multiple description coding
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US20050058180A1 (en) * 2001-12-06 2005-03-17 Ismail Lakkis Ultra-wideband communication apparatus and methods
US20050152483A1 (en) * 2001-12-06 2005-07-14 Ismail Lakkis Systems and methods for implementing path diversity in a wireless communication network
US7406647B2 (en) 2001-12-06 2008-07-29 Pulse-Link, Inc. Systems and methods for forward error correction in a wireless communication network
US7349439B2 (en) * 2001-12-06 2008-03-25 Pulse-Link, Inc. Ultra-wideband communication systems and methods
US7257156B2 (en) * 2001-12-06 2007-08-14 Pulse˜Link, Inc. Systems and methods for equalization of received signals in a wireless communication network
US7450637B2 (en) * 2001-12-06 2008-11-11 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US8045935B2 (en) * 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US20050201473A1 (en) * 2001-12-06 2005-09-15 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US7403576B2 (en) 2001-12-06 2008-07-22 Pulse-Link, Inc. Systems and methods for receiving data in a wireless communication network
US7289494B2 (en) * 2001-12-06 2007-10-30 Pulse-Link, Inc. Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
US7391815B2 (en) * 2001-12-06 2008-06-24 Pulse-Link, Inc. Systems and methods to recover bandwidth in a communication system
US20050053121A1 (en) * 2001-12-06 2005-03-10 Ismail Lakkis Ultra-wideband communication apparatus and methods
US7317756B2 (en) * 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7483483B2 (en) * 2001-12-06 2009-01-27 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
JP2004048126A (ja) * 2002-07-09 2004-02-12 Hitachi Ltd 無線通信制限装置および無線通信中継局および無線通信基地局
US7336694B2 (en) * 2003-10-10 2008-02-26 Sbc Knowledge Ventures, L.P. Delay-induced scattering with phase randomization and partitioned frequency hopping
GB2408898B (en) * 2003-12-02 2006-08-16 Toshiba Res Europ Ltd Improved communications apparatus and methods
US7327249B1 (en) 2004-06-24 2008-02-05 Wayne-Dalton Corp. Barrier operator system having multiple frequency receivers
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
US7640040B2 (en) * 2005-08-22 2009-12-29 Kyocera Corporation Systems and methods for tuning an antenna configuration in a mobile communication device
CN102142877B (zh) * 2005-09-01 2012-09-12 夏普株式会社 发送控制方法以及发送控制装置
PL1944882T3 (pl) * 2005-10-31 2011-07-29 Snaptrack Inc Urządzenie terminala, urządzenie stacji bazowej i system komunikacyjny
WO2007052649A1 (ja) * 2005-10-31 2007-05-10 Sharp Kabushiki Kaisha 無線送信機、無線通信システム及び無線送信方法
CN101674121B (zh) 2005-12-20 2013-10-30 华为技术有限公司 发送机
EP1971042B1 (en) * 2005-12-26 2014-07-30 Huawei Technologies Co., Ltd. Wireless transmitter and wireless transmission method
US7508188B2 (en) * 2006-05-31 2009-03-24 Broadcom Corporation On-chip current sensing methods and systems
US8363746B2 (en) * 2008-01-25 2013-01-29 Telefonaktiebolaget Lm Ericsson (Publ) Method to modify the frequency hopping scheme by extending the validity of the reference signals
US8077597B1 (en) 2008-03-06 2011-12-13 Rockwell Collins, Inc. Multi-dwell channel monitoring for coordinated frequency hopped systems
US8243100B2 (en) * 2008-06-26 2012-08-14 Qualcomm Incorporated System and method to perform fast rotation operations
US8160513B2 (en) * 2008-08-01 2012-04-17 Qualcomm Incorporated Methods and apparatus for implementing phase rotation at baseband frequency for transmit diversity
CN107612597B (zh) * 2011-02-18 2021-01-05 太阳专利托管公司 信号生成方法及信号生成装置
US8942299B2 (en) * 2012-02-27 2015-01-27 Qualcomm Incorporated Baseband beamforming
CN104579440B (zh) * 2014-11-24 2018-04-20 南京邮电大学 一种基于反向天线阵的方向调制信号的设计方法
JP6876794B2 (ja) * 2016-09-30 2021-05-26 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン テレグラム分割に基づく測位
CN107959533B (zh) * 2016-10-17 2020-11-06 华为技术有限公司 一种无线设备及射频通道校准方法
CN108965183B (zh) * 2018-08-01 2020-12-01 南京邮电大学 基于优化目标函数的无线通信方向调制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1115590A (zh) * 1993-10-13 1996-01-24 Ntt移动通信网株式会社 扩频通信接收机
CN1124544A (zh) * 1994-01-27 1996-06-12 艾利森·Ge·流动通讯有限公司 用于解调下行链路码分多址信号的方法和系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189348B (en) * 1979-05-23 1988-04-20 Standard Telephones Cables Ltd Adaptive antenna arrays for frequency hopped systems
US5142534A (en) * 1990-10-17 1992-08-25 O'neill Communications, Inc. Wireless integrated voice-data communication system
US5614914A (en) * 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
JP2746190B2 (ja) * 1995-04-27 1998-04-28 住友電気工業株式会社 スペクトラム拡散通信装置
US5563610A (en) * 1995-06-08 1996-10-08 Metawave Communications Corporation Narrow beam antenna systems with angular diversity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1115590A (zh) * 1993-10-13 1996-01-24 Ntt移动通信网株式会社 扩频通信接收机
CN1124544A (zh) * 1994-01-27 1996-06-12 艾利森·Ge·流动通讯有限公司 用于解调下行链路码分多址信号的方法和系统

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"FRENCY DIVERSITY GAIN INDOR GSMSYSTEMS". HOOK，M，ET，AL.1996 IEEE 46TH VEHICULAR TECHNOLOGY CONFERENCE.MOBILE TECHNOLOGY FOR THE HUMAN RACE(CAT .NO.96CH35894). 1996 *
"ON ANTENNA-AND REEQUENCY DIVERSITY IN GSMRELATED DIMS(GSM-900,DCS-1800,AND PCS 190. MOGENSEN P ET AL.SEVENTH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL,INDOOR AND MOBILE RADIO COMMUNICATIONS. 1996 *
ARTIFICIAL DELAY INSERTION DIVERSITY TOEXTEND ANTI-MUTIPATH CAPABILITY OF DSK INMOBILE RA-. YOSHIDA S ET AL.IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS'86.ICC'86,Vol.1 No.1. 1986 *

Also Published As

Publication number Publication date
DE69721048D1 (de) 2003-05-22
EP0947058A2 (en) 1999-10-06
WO1998027663A2 (en) 1998-06-25
US5991331A (en) 1999-11-23
US6034987A (en) 2000-03-07
BR9713943A (pt) 2000-03-21
EP0947058B1 (en) 2003-04-16
JP4104023B2 (ja) 2008-06-18
CN101056134A (zh) 2007-10-17
TW362311B (en) 1999-06-21
CA2275283A1 (en) 1998-06-25
WO1998027663A3 (en) 1998-08-06
JP2001524277A (ja) 2001-11-27
CN1245600A (zh) 2000-02-23
DE69721048T2 (de) 2004-04-08
CA2275283C (en) 2006-12-05
AU5521098A (en) 1998-07-15

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