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DE69700255D1 - Mehrbenutzer-Demodulator für CDMA-Spreitzbandkommunikationssystem - Google Patents

Mehrbenutzer-Demodulator für CDMA-Spreitzbandkommunikationssystem

Info

Publication number
DE69700255D1
DE69700255D1 DE69700255T DE69700255T DE69700255D1 DE 69700255 D1 DE69700255 D1 DE 69700255D1 DE 69700255 T DE69700255 T DE 69700255T DE 69700255 T DE69700255 T DE 69700255T DE 69700255 D1 DE69700255 D1 DE 69700255D1
Authority
DE
Germany
Prior art keywords
communication system
band communication
cdma spreading
spreading band
user demodulator
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
DE69700255T
Other languages
English (en)
Other versions
DE69700255T2 (de
Inventor
Changming Zhou
Guoliang Shou
Kenzo Urabe
Tetsuhiko Miyatani
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.)
Yozan Inc Tokio/tokyo Jp Hitachi Kokusai Electr
Original Assignee
Yozan Inc
Kokusai Electric Co Ltd
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 Yozan Inc, Kokusai Electric Co Ltd filed Critical Yozan Inc
Publication of DE69700255D1 publication Critical patent/DE69700255D1/de
Application granted granted Critical
Publication of DE69700255T2 publication Critical patent/DE69700255T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
DE69700255T 1996-01-12 1997-01-13 Mehrbenutzer-Demodulator für CDMA-Spreitzbandkommunikationssystem Expired - Fee Related DE69700255T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02186996A JP3476987B2 (ja) 1996-01-12 1996-01-12 マルチユーザ復調方法および装置

Publications (2)

Publication Number Publication Date
DE69700255D1 true DE69700255D1 (de) 1999-07-15
DE69700255T2 DE69700255T2 (de) 1999-10-14

Family

ID=12067142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69700255T Expired - Fee Related DE69700255T2 (de) 1996-01-12 1997-01-13 Mehrbenutzer-Demodulator für CDMA-Spreitzbandkommunikationssystem

Country Status (4)

Country Link
US (1) US5956333A (de)
EP (1) EP0784385B1 (de)
JP (1) JP3476987B2 (de)
DE (1) DE69700255T2 (de)

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JP2782057B2 (ja) * 1996-02-19 1998-07-30 株式会社鷹山 スペクトル拡散通信方式のための逆拡散回路
JP3586348B2 (ja) * 1997-03-05 2004-11-10 富士通株式会社 信号対干渉電力比測定装置及び信号対干渉電力比測定方法並びにｃｄｍａ通信方式下での送信電力制御方法
JP2002198932A (ja) 1997-09-30 2002-07-12 Matsushita Electric Ind Co Ltd 相関検出方法およびマッチトフィルタ
FR2770058B1 (fr) * 1997-10-22 1999-11-19 Commissariat Energie Atomique Procede de traitement d'un signal de transmission d'information par etalement de spectre et recepteur correspondant
KR100277925B1 (ko) * 1997-12-22 2001-02-01 서평원 직접확산코드분할다중접속시스템의다중사용자검파장치및방법
KR19990052334A (ko) * 1997-12-22 1999-07-05 서평원 직접확산 코드분할 다중접속 시스템의 다중사용자 검파장치 및 방법
EP0936748A3 (de) * 1998-02-12 2003-07-23 Yozan Inc. Angepasste Filterbank für CDMA Nachrichtenübertragung
US6363103B1 (en) * 1998-04-09 2002-03-26 Lucent Technologies Inc. Multistage interference cancellation for CDMA applications using M-ary orthogonal moduation
US6229857B1 (en) * 1998-06-02 2001-05-08 Intel Corporation Adaptive ingress filtering system
JP3777475B2 (ja) 1999-02-24 2006-05-24 株式会社日立国際電気 スペクトラム拡散通信用相関回路及び復調回路及び受信装置
JP2000261412A (ja) * 1999-03-06 2000-09-22 Matsushita Electric Ind Co Ltd 干渉信号除去装置
EP1178621A4 (de) 1999-04-30 2002-06-19 Fujitsu Ltd Kodemultiplex-funkvorrichtung mit interferenzunterdrückung
CN1118201C (zh) * 1999-08-11 2003-08-13 信息产业部电信科学技术研究院 一种基于智能天线的干扰抵销方法
US6603804B1 (en) * 1999-10-01 2003-08-05 Agere Systems Inc. Upsampling filter having one-bit multipliers for multiple spread-data streams
US6801569B1 (en) * 2000-06-22 2004-10-05 Golden Bridge Technology Inc. Digital matched filter bank for othogonal signal set
JP4493830B2 (ja) 2000-10-23 2010-06-30 株式会社日立国際電気 Ｒａｃｈ受信装置
US7016332B2 (en) * 2000-12-05 2006-03-21 Science Applications International Corporation Method and system for a remote downlink transmitter for increasing the capacity of a multiple access interference limited spread-spectrum wireless network
US7061891B1 (en) 2001-02-02 2006-06-13 Science Applications International Corporation Method and system for a remote downlink transmitter for increasing the capacity and downlink capability of a multiple access interference limited spread-spectrum wireless network
US7636403B2 (en) * 2001-02-20 2009-12-22 Massachusetts Institute Of Technology Correlation shaping multi-signature receiver
US7751469B2 (en) * 2001-02-20 2010-07-06 Massachusetts Institute Of Technology Correlation shaping matched filter receiver
US7209515B2 (en) * 2001-03-30 2007-04-24 Science Applications International Corporation Multistage reception of code division multiple access transmissions
US7006461B2 (en) * 2001-09-17 2006-02-28 Science Applications International Corporation Method and system for a channel selective repeater with capacity enhancement in a spread-spectrum wireless network
SG103321A1 (en) * 2001-11-17 2004-04-29 St Microelectronics Asia Low-power code division multiple access receiver
KR20030067341A (ko) 2002-02-08 2003-08-14 주식회사 팬택앤큐리텔 Ｉｓ-2000 시스템에서의 기지국내 동기식 복조장치
DE10210323A1 (de) * 2002-03-08 2003-10-02 Infineon Technologies Ag Hardware-Unterstützung für die SINR-Berechnung in Funkempfängern
US7023912B2 (en) * 2002-08-19 2006-04-04 Mitsubishi Electric Research Laboratories, Inc. Hybrid adaptive equalizer for optical communications systems
US7526041B2 (en) * 2003-04-24 2009-04-28 Nec Corporation Channel estimation circuit and channel estimation method
US8594151B2 (en) * 2005-10-31 2013-11-26 Nokia Corporation Pilot sequence detection
JP4313843B2 (ja) 2007-10-01 2009-08-12 パナソニック株式会社 超音波測定装置および超音波測定方法
JP6191788B2 (ja) * 2015-02-10 2017-09-06 日本精工株式会社 トルクセンサ及びそれを搭載した電動パワーステアリング装置
EP3353899B8 (de) * 2015-09-21 2022-02-23 HYPHY USA, Inc. System zum transport von abgetasteten signalen über unvollkommene elektromagnetische bahnen
EP3607662A4 (de) 2017-03-20 2021-01-06 Hyphy USA, Inc. Medienschnittstellen mit adaptiver kompression
US11716114B2 (en) 2020-11-25 2023-08-01 Hyphy Usa Inc. Encoder and decoder circuits for the transmission of video media using spread spectrum direct sequence modulation
US12176933B2 (en) 2021-08-12 2024-12-24 Hyphy Usa Inc. Distributing staged sampled signals and conveying over electromagnetic pathways
US11997415B2 (en) 2021-08-17 2024-05-28 Hyphy Usa Inc. Sampled analog storage system
US12039951B2 (en) 2021-09-03 2024-07-16 Hyphy Usa Inc. Spread-spectrum video transport integration with display drivers
US12148354B2 (en) 2021-09-17 2024-11-19 Hyphy Usa Inc. Spread-spectrum video transport integration with virtual reality headset
US11769468B2 (en) 2022-01-19 2023-09-26 Hyphy Usa Inc. Spread-spectrum video transport integration with timing controller
US11842671B2 (en) 2022-03-07 2023-12-12 Hyphy Usa Inc. Spread-spectrum video transport source driver integration with display panel

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Publication number Priority date Publication date Assignee Title
US4134071A (en) * 1971-07-19 1979-01-09 Licentia Patent-Verwaltungs-G.M.B.H. SSMA Data transmission system
JPS59127542A (ja) * 1983-01-10 1984-07-23 東京電力株式会社 位相パルス信号のレベル検定方法
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5136612A (en) * 1990-12-31 1992-08-04 At&T Bell Laboratories Method and apparatus for reducing effects of multiple access interference in a radio receiver in a code division multiple access communication system
US5164959A (en) * 1991-01-22 1992-11-17 Hughes Aircraft Company Digital equalization method and apparatus
JP2985996B2 (ja) * 1992-11-27 1999-12-06 株式会社高取育英会 乗算回路
JP3143247B2 (ja) * 1993-01-11 2001-03-07 沖電気工業株式会社 符号分割多元接続復調装置
US5363403A (en) * 1993-04-22 1994-11-08 Interdigital Technology Corporation Spread spectrum CDMA subtractive interference canceler and method
US5481533A (en) * 1994-05-12 1996-01-02 Bell Communications Research, Inc. Hybrid intra-cell TDMA/inter-cell CDMA for wireless networks
JP2926651B2 (ja) * 1995-11-02 1999-07-28 株式会社鷹山 マッチドフィルタ回路

Also Published As

Publication number Publication date
US5956333A (en) 1999-09-21
JP3476987B2 (ja) 2003-12-10
DE69700255T2 (de) 1999-10-14
JPH09200179A (ja) 1997-07-31
EP0784385B1 (de) 1999-06-09
EP0784385A1 (de) 1997-07-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: YOZAN INC., TOKIO/TOKYO, JP HITACHI KOKUSAI ELECTR

8339 Ceased/non-payment of the annual fee