DE60135412D1 - Schaltung zur zeitlichen Detektion von empfangenen Pfaden in Direktsequenz-CDMA-System - Google Patents
Schaltung zur zeitlichen Detektion von empfangenen Pfaden in Direktsequenz-CDMA-SystemInfo
- Publication number
- DE60135412D1 DE60135412D1 DE60135412T DE60135412T DE60135412D1 DE 60135412 D1 DE60135412 D1 DE 60135412D1 DE 60135412 T DE60135412 T DE 60135412T DE 60135412 T DE60135412 T DE 60135412T DE 60135412 D1 DE60135412 D1 DE 60135412D1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- time detection
- cdma system
- direct sequence
- sequence 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
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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7113—Determination of path profile
-
- 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
-
- 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
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000173580A JP3438701B2 (ja) | 2000-06-09 | 2000-06-09 | Ds−cdmaシステムにおける受信パスタイミング検出回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60135412D1 true DE60135412D1 (de) | 2008-10-02 |
Family
ID=18675783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60135412T Expired - Lifetime DE60135412D1 (de) | 2000-06-09 | 2001-06-08 | Schaltung zur zeitlichen Detektion von empfangenen Pfaden in Direktsequenz-CDMA-System |
Country Status (4)
Country | Link |
---|---|
US (1) | US7142587B2 (de) |
EP (1) | EP1162757B1 (de) |
JP (1) | JP3438701B2 (de) |
DE (1) | DE60135412D1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3943305B2 (ja) * | 2000-01-19 | 2007-07-11 | 三菱電機株式会社 | スペクトル拡散受信装置、およびスペクトル拡散受信方法 |
JP3407711B2 (ja) * | 2000-04-27 | 2003-05-19 | 日本電気株式会社 | Ds−cdma方式の受信機におけるパスサーチ回路 |
EP1195914B1 (de) * | 2000-07-03 | 2007-03-14 | Mitsubishi Denki Kabushiki Kaisha | Vorrichtung und verfahren zur korrektur der zeitgabe |
JP2002026768A (ja) * | 2000-07-07 | 2002-01-25 | Nec Corp | 通信装置 |
JP4558225B2 (ja) * | 2001-02-15 | 2010-10-06 | 株式会社日立国際電気 | 符号分割多重アクセス受信機 |
GB0110464D0 (en) * | 2001-04-28 | 2001-06-20 | Koninkl Philips Electronics Nv | A method of detecting and a receiver for a spread spectrum signal |
GB0110465D0 (en) * | 2001-04-28 | 2001-06-20 | Koninkl Philips Electronics Nv | Spread spectrum reciever and method of detection |
JP3884309B2 (ja) * | 2002-03-14 | 2007-02-21 | 三菱電機株式会社 | スペクトラム拡散用受信装置 |
FR2841407B1 (fr) * | 2002-06-20 | 2004-08-13 | Nec Technologies Uk Ltd | Procede d'optimisation de la recherche de cellules dans un reseau de telecommunication mobile |
JP2004274536A (ja) * | 2003-03-11 | 2004-09-30 | Hitachi Kokusai Electric Inc | 符号識別装置 |
WO2004107597A1 (en) * | 2003-05-27 | 2004-12-09 | Telefonaktiebolaget L M Ericsson (Publ) | Averaging a delay profile in a limited delay range |
EP1482651A1 (de) * | 2003-05-27 | 2004-12-01 | Telefonaktiebolaget LM Ericsson (publ) | Verfahren zur Ermittlung des durchschnittlichen Verzögerungsprofils in einem beschrankten Verzögerungsbereich |
US7336739B2 (en) | 2003-09-26 | 2008-02-26 | Lockheed Martin Corporation | Cross-correlation signal detector |
US20050129149A1 (en) * | 2003-12-12 | 2005-06-16 | Kuntz Thomas L. | Detecting GSM downlink signal frequency correction burst |
EP1545019A1 (de) * | 2003-12-19 | 2005-06-22 | Telefonaktiebolaget LM Ericsson (publ) | GPS-Empfänger mit Differentialkorrelation |
EP1551109B1 (de) * | 2004-01-05 | 2009-11-25 | STMicroelectronics N.V. | Verfahren zur Unterdrückung von falschen Echos in einem Rake-Empfänger |
ATE535060T1 (de) * | 2004-05-13 | 2011-12-15 | Ntt Docomo Inc | Vorrichtung und verfahren zur wegesuche in einem cdma-empfänger |
JP4627008B2 (ja) * | 2004-05-13 | 2011-02-09 | 株式会社エヌ・ティ・ティ・ドコモ | パスサーチャ及びパスサーチ方法 |
WO2006016856A1 (en) * | 2004-08-13 | 2006-02-16 | Agency For Science, Technology And Research | Method and system for determining a frequency offset |
TWI295884B (en) * | 2005-10-26 | 2008-04-11 | Sunplus Technology Co Ltd | Method for symbol timing synchronization and apparatus thereof |
US8982668B2 (en) * | 2010-11-15 | 2015-03-17 | Semiconductor Components Industries, Llc | Semiconductor device and method of forming same for correlation detection |
US8768275B2 (en) * | 2011-11-10 | 2014-07-01 | National Instruments Corporation | Spectral averaging |
JP7472437B2 (ja) * | 2019-06-12 | 2024-04-23 | 日本電気株式会社 | 無線通信装置、無線通信システム、無線通信方法、及びプログラム |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5060515A (en) * | 1989-03-01 | 1991-10-29 | Kabushiki Kaisha Toshiba | Image signal processing circuit for ultrasonic imaging apparatus |
JP3752261B2 (ja) | 1994-12-21 | 2006-03-08 | 株式会社豊田自動織機 | スペクトル拡散通信方式およびその受信装置 |
JPH1051354A (ja) * | 1996-05-30 | 1998-02-20 | N T T Ido Tsushinmo Kk | Ds−cdma伝送方法 |
JP2751959B2 (ja) | 1996-07-15 | 1998-05-18 | 日本電気株式会社 | Cdma受信装置の受信タイミング検出回路 |
US5974042A (en) | 1997-02-28 | 1999-10-26 | Motorola, Inc. | Service detection circuit and method |
JP3278379B2 (ja) | 1997-06-26 | 2002-04-30 | 株式会社鷹山 | フレーム同期検出回路 |
JP3204925B2 (ja) | 1997-06-18 | 2001-09-04 | 株式会社エヌ・ティ・ティ・ドコモ | Cdma通信システムにおける信号受信装置 |
JP3504470B2 (ja) * | 1997-09-18 | 2004-03-08 | 日本放送協会 | Afc回路、キャリア再生回路および受信装置 |
JP2911117B1 (ja) | 1998-02-09 | 1999-06-23 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | Rake受信機 |
KR100295755B1 (ko) | 1998-05-13 | 2001-07-12 | 윤종용 | 이동통신시스템의 이동국 채널추정장치 및 방법 |
DE59904748D1 (de) * | 1998-06-29 | 2003-04-30 | Siemens Ag | Übertragung von daten mittels ultraschall |
JP2000078110A (ja) | 1998-08-31 | 2000-03-14 | Mitsubishi Electric Corp | Rake受信機,無線受信装置およびrake受信機のパス検出方法 |
EP2296288B1 (de) | 1998-12-14 | 2012-10-17 | Interdigital Technology Corporation | Direktzugriffskanal-Präambelerkennung |
JP3059156B1 (ja) | 1999-03-17 | 2000-07-04 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | ガ―ドチップ付拡散符号のユ―ザ―タイミング検出装置およびスペクトラム拡散受信装置 |
JP3638107B2 (ja) | 1999-12-09 | 2005-04-13 | Kddi株式会社 | スペクトル拡散信号復調装置 |
-
2000
- 2000-06-09 JP JP2000173580A patent/JP3438701B2/ja not_active Expired - Fee Related
-
2001
- 2001-06-07 US US09/875,151 patent/US7142587B2/en not_active Expired - Fee Related
- 2001-06-08 DE DE60135412T patent/DE60135412D1/de not_active Expired - Lifetime
- 2001-06-08 EP EP20010113986 patent/EP1162757B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1162757B1 (de) | 2008-08-20 |
US20010050950A1 (en) | 2001-12-13 |
JP2001352274A (ja) | 2001-12-21 |
EP1162757A2 (de) | 2001-12-12 |
JP3438701B2 (ja) | 2003-08-18 |
US7142587B2 (en) | 2006-11-28 |
EP1162757A3 (de) | 2004-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |