DE69826365D1 - Empfangsgerät für CDMA Nachrichtenübertragungssystem - Google Patents

Empfangsgerät für CDMA Nachrichtenübertragungssystem

Info

Publication number
DE69826365D1
DE69826365D1 DE69826365T DE69826365T DE69826365D1 DE 69826365 D1 DE69826365 D1 DE 69826365D1 DE 69826365 T DE69826365 T DE 69826365T DE 69826365 T DE69826365 T DE 69826365T DE 69826365 D1 DE69826365 D1 DE 69826365D1
Authority
DE
Germany
Prior art keywords
receiving device
transmission system
message transmission
cdma message
cdma
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 - Lifetime
Application number
DE69826365T
Other languages
English (en)
Other versions
DE69826365T2 (de
Inventor
Changming Zhou
Xuping Zhou
Mamoru Sawahashi
Fumiyuki Adachi
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
Yozan Inc
NTT Docomo 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 Yozan Inc, NTT Docomo Inc filed Critical Yozan Inc
Application granted granted Critical
Publication of DE69826365D1 publication Critical patent/DE69826365D1/de
Publication of DE69826365T2 publication Critical patent/DE69826365T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Transmission System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
DE1998626365 1997-06-18 1998-06-18 Empfangsgerät für CDMA Nachrichtenübertragungssystem Expired - Lifetime DE69826365T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17660997 1997-06-18
JP17660997A JP3204925B2 (ja) 1997-06-18 1997-06-18 Ｃｄｍａ通信システムにおける信号受信装置

Publications (2)

Publication Number Publication Date
DE69826365D1 true DE69826365D1 (de) 2004-10-28
DE69826365T2 DE69826365T2 (de) 2005-02-17

Family

ID=16016568

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998626365 Expired - Lifetime DE69826365T2 (de) 1997-06-18 1998-06-18 Empfangsgerät für CDMA Nachrichtenübertragungssystem

Country Status (6)

Country Link
US (1) US6426949B1 (de)
EP (1) EP0886385B1 (de)
JP (1) JP3204925B2 (de)
KR (1) KR100552076B1 (de)
CN (1) CN1144407C (de)
DE (1) DE69826365T2 (de)

Families Citing this family (29)

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US6563856B1 (en) * 1998-07-08 2003-05-13 Wireless Facilities, Inc. Frame synchronization and detection technique for a digital receiver
US7643540B2 (en) 1999-03-15 2010-01-05 Lg Electronics Inc. Pilot signals for synchronization and/or channel estimation
KR100294711B1 (ko) * 1999-03-15 2001-07-12 서평원 최적의 파일럿 심볼을 이용한 프레임 동기 방법
US6791960B1 (en) 1999-03-15 2004-09-14 Lg Information And Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US6804264B1 (en) 1999-03-15 2004-10-12 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US7496132B2 (en) 1999-03-15 2009-02-24 Kg Electronics Inc. Pilot signals for synchronization and/or channel estimation
US6980532B1 (en) * 1999-05-25 2005-12-27 Samsung Electronics Co., Ltd. Apparatus and method for combining symbol data in CDMA communication system
JP2001086032A (ja) * 1999-09-10 2001-03-30 Pioneer Electronic Corp 通信装置及び通信方法
JP3419726B2 (ja) 2000-02-03 2003-06-23 松下電器産業株式会社 メモリ回路および同期検波回路
DK1530301T3 (da) * 2000-03-28 2010-08-09 Interdigital Tech Corp CDMA-system der anvender pre-rotation før transmission
JP3397744B2 (ja) * 2000-03-28 2003-04-21 松下電器産業株式会社 通信装置及びｃｄｍａ通信方法
US6810072B1 (en) * 2000-05-30 2004-10-26 Nokia Corporation System for acquiring spread spectrum signals
JP3438701B2 (ja) 2000-06-09 2003-08-18 日本電気株式会社 Ｄｓ−ｃｄｍａシステムにおける受信パスタイミング検出回路
JP4255601B2 (ja) 2000-06-14 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける移動局の同期確立方法
JP2002217787A (ja) * 2000-11-17 2002-08-02 Hitachi Kokusai Electric Inc ディジタルフィルタ
US7313104B1 (en) 2001-12-28 2007-12-25 Advanced Micro Devices, Inc. Wireless computer system with latency masking
US7149213B1 (en) 2001-12-28 2006-12-12 Advanced Micro Devices, Inc. Wireless computer system with queue and scheduler
KR100418863B1 (ko) * 2002-01-30 2004-02-14 국방과학연구소 모노펄스 수신기에서 신호들의 전압차를 이용한 위상 정합방법 및 장치
DE10210236B4 (de) 2002-03-08 2006-01-19 Advanced Micro Devices, Inc., Sunnyvale WLAN-Empfänger-Synchronisation
US7263082B1 (en) * 2002-06-28 2007-08-28 Arraycomm, Llc Resolving user-specific narrow beam signals using a known sequence in a wireless communications system with a common pilot channel
CN100338932C (zh) * 2002-12-06 2007-09-19 冯志强 一种压制和减少ds－cdma***多用户干扰的信号处理装置
JP3697714B2 (ja) 2003-01-15 2005-09-21 ソニー株式会社 通信装置及び通信方法
JP4180448B2 (ja) * 2003-06-10 2008-11-12 松下電器産業株式会社 受信装置
DE10334064B3 (de) * 2003-07-25 2005-04-14 Infineon Technologies Ag Verfahren und Schaltungsanordnung zum Kalibrieren eines den Abtastzeitpunkt eines Empfangssignals beeinflussenden Abtastungssteuersignales eines Abtastphasenauswahlelements
EP1724940A1 (de) * 2005-05-18 2006-11-22 Siemens Aktiengesellschaft Rake-Empfängeranordnung für Mobilfunkgeräte
KR100785767B1 (ko) * 2005-11-11 2007-12-18 한국전자통신연구원 구적오차가 있는 ｍ－ｐｓｋ 시스템의 심볼오율 성능 개선장치 및 방법
US7860395B2 (en) * 2006-02-02 2010-12-28 Oki Electric Industry Co., Ltd. Optical access network system
US7599454B2 (en) * 2006-07-24 2009-10-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for symbol alignment in diversity signal reception
US7672415B1 (en) * 2006-09-28 2010-03-02 L-3 Communications, Corp. System and method for detecting a presence and frequency offset of a spread spectrum radio frequency signal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5412686A (en) * 1993-09-17 1995-05-02 Motorola Inc. Method and apparatus for power estimation in a communication system
CN1082757C (zh) * 1994-06-22 2002-04-10 Ntt移动通信网株式会社 用于数字通信接收机的相干检测器和相干检测方法
EP1361687B1 (de) * 1994-06-23 2006-05-10 NTT DoCoMo, Inc. CDMA Demodulationsschaltung und Demodulationsverfahren
JP3323698B2 (ja) * 1994-07-20 2002-09-09 株式会社日立製作所 Ｃｄｍａ移動通信システムの移動局および検波方法
CA2153516C (en) * 1994-07-20 1999-06-01 Yasuo Ohgoshi Mobile station for cdma mobile communication system and detection method of the same
US5659573A (en) * 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US5724378A (en) * 1994-12-13 1998-03-03 Nit Mobile Communications Network, Inc. CDMA multiuser receiver and method
KR0173911B1 (ko) * 1996-07-25 1999-04-01 에스케이텔레콤주식회사 간섭을 감소시킨 부호 분할 다중 접속 방식(cdma) 변.복조 방법 및 그 방법을 이용한 통신 시스템
JP3681230B2 (ja) * 1996-07-30 2005-08-10 松下電器産業株式会社 スペクトル拡散通信装置
JP3373746B2 (ja) * 1997-01-07 2003-02-04 株式会社鷹山 Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機
JPH10233713A (ja) * 1997-02-20 1998-09-02 Kokusai Electric Co Ltd 同期検波回路
JP3283210B2 (ja) * 1997-05-30 2002-05-20 株式会社鷹山 スペクトラム拡散通信方式における信号受信装置

Also Published As

Publication number Publication date
JP3204925B2 (ja) 2001-09-04
KR100552076B1 (ko) 2006-09-20
EP0886385A2 (de) 1998-12-23
CN1144407C (zh) 2004-03-31
JPH118568A (ja) 1999-01-12
DE69826365T2 (de) 2005-02-17
US6426949B1 (en) 2002-07-30
KR19990007063A (ko) 1999-01-25
EP0886385B1 (de) 2004-09-22
EP0886385A3 (de) 2003-05-14
CN1209697A (zh) 1999-03-03

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: NTT DOCOMO, INC., TOKIO/TOKYO, JP

8364 No opposition during term of opposition