CN1144407C - 码分多址通讯***的信号接收装置 - Google Patents
码分多址通讯***的信号接收装置 Download PDFInfo
- Publication number
- CN1144407C CN1144407C CNB981147879A CN98114787A CN1144407C CN 1144407 C CN1144407 C CN 1144407C CN B981147879 A CNB981147879 A CN B981147879A CN 98114787 A CN98114787 A CN 98114787A CN 1144407 C CN1144407 C CN 1144407C
- Authority
- CN
- China
- Prior art keywords
- signal
- mentioned
- diffusion
- phase correction
- path
- 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
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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)
- Synchronisation In Digital Transmission Systems (AREA)
- Radio Transmission System (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP176609/1997 | 1997-06-18 | ||
JP176609/97 | 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 |
---|---|
CN1209697A CN1209697A (zh) | 1999-03-03 |
CN1144407C true CN1144407C (zh) | 2004-03-31 |
Family
ID=16016568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB981147879A Expired - Fee Related CN1144407C (zh) | 1997-06-18 | 1998-06-17 | 码分多址通讯***的信号接收装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6426949B1 (zh) |
EP (1) | EP0886385B1 (zh) |
JP (1) | JP3204925B2 (zh) |
KR (1) | KR100552076B1 (zh) |
CN (1) | CN1144407C (zh) |
DE (1) | DE69826365T2 (zh) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6563856B1 (en) * | 1998-07-08 | 2003-05-13 | Wireless Facilities, Inc. | Frame synchronization and detection technique for a digital receiver |
US7496132B2 (en) | 1999-03-15 | 2009-02-24 | Kg Electronics Inc. | Pilot signals for synchronization and/or channel estimation |
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 |
KR100294711B1 (ko) * | 1999-03-15 | 2001-07-12 | 서평원 | 최적의 파일럿 심볼을 이용한 프레임 동기 방법 |
US7643540B2 (en) | 1999-03-15 | 2010-01-05 | Lg 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 |
DE60141923D1 (de) * | 2000-03-28 | 2010-06-02 | Interdigital Tech Corp | Cdma system, welches vor dem senden eine vordrehung benutzt |
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 |
US7149213B1 (en) | 2001-12-28 | 2006-12-12 | Advanced Micro Devices, Inc. | Wireless computer system with queue and scheduler |
US7313104B1 (en) | 2001-12-28 | 2007-12-25 | Advanced Micro Devices, Inc. | Wireless computer system with latency masking |
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)
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 |
DE69533156T2 (de) * | 1994-06-22 | 2005-07-14 | Ntt Docomo Inc. | Synchrondetektorschaltung und synchronisierungsmethode für einen digitalsignalempfänger |
DE69534987T2 (de) * | 1994-06-23 | 2006-09-21 | Ntt Docomo Inc. | CDMA Demodulationsschaltung und Demodulationsverfahren |
CA2153516C (en) * | 1994-07-20 | 1999-06-01 | Yasuo Ohgoshi | Mobile station for cdma mobile communication system and detection method of the same |
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 |
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 |
-
1997
- 1997-06-18 JP JP17660997A patent/JP3204925B2/ja not_active Expired - Fee Related
-
1998
- 1998-06-17 CN CNB981147879A patent/CN1144407C/zh not_active Expired - Fee Related
- 1998-06-17 US US09/098,357 patent/US6426949B1/en not_active Expired - Fee Related
- 1998-06-17 KR KR1019980022737A patent/KR100552076B1/ko not_active IP Right Cessation
- 1998-06-18 EP EP19980111256 patent/EP0886385B1/en not_active Expired - Lifetime
- 1998-06-18 DE DE1998626365 patent/DE69826365T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3204925B2 (ja) | 2001-09-04 |
DE69826365T2 (de) | 2005-02-17 |
DE69826365D1 (de) | 2004-10-28 |
US6426949B1 (en) | 2002-07-30 |
KR100552076B1 (ko) | 2006-09-20 |
CN1209697A (zh) | 1999-03-03 |
EP0886385B1 (en) | 2004-09-22 |
EP0886385A3 (en) | 2003-05-14 |
EP0886385A2 (en) | 1998-12-23 |
JPH118568A (ja) | 1999-01-12 |
KR19990007063A (ko) | 1999-01-25 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Applicant after: YOZAN Inc. Applicant after: NTT MOBILE COMMUNICATIONS NETWORK Inc. Applicant before: Yozan Inc. Applicant before: NTT MOBILE COMMUNICATIONS NETWORK Inc. Applicant after: Yozan Inc. Applicant before: Yozan Inc. |
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Free format text: CORRECT: APPLICANT; FROM: YOZAN INC. TO: TAKATORI EDUCATIONAL SOC INC Free format text: CORRECT: APPLICANT; FROM: TAKATORI EDUCATIONAL SOC INC; NTT MOBILE COMMUNICATIONS NETWORK INC. TO: YOZAN INC.; NTT MOBILE COMMUNICATIONS NETWORK INC. |
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Effective date of registration: 20050513 Address after: Tokyo, Japan Patentee after: NTT Docomo, Inc. Address before: Tokyo, Japan Co-patentee before: NTT Docomo, Inc. Patentee before: Yozan Inc. |
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