DE60136907D1 - Früh-spät detektion in einem cdma empfänger - Google Patents
Früh-spät detektion in einem cdma empfängerInfo
- Publication number
- DE60136907D1 DE60136907D1 DE60136907T DE60136907T DE60136907D1 DE 60136907 D1 DE60136907 D1 DE 60136907D1 DE 60136907 T DE60136907 T DE 60136907T DE 60136907 T DE60136907 T DE 60136907T DE 60136907 D1 DE60136907 D1 DE 60136907D1
- Authority
- DE
- Germany
- Prior art keywords
- early
- component
- late
- rake
- cdma receiver
- 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
- H04B1/7115—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
-
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Stereo-Broadcasting Methods (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Burglar Alarm Systems (AREA)
- Noise Elimination (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/649,672 US6901105B1 (en) | 2000-08-28 | 2000-08-28 | Tracking of a multi-path resolved signal in a rake receiver |
US09/727,113 US6954486B2 (en) | 2000-08-28 | 2000-11-29 | Early-late detection |
PCT/EP2001/009566 WO2002019555A2 (en) | 2000-08-28 | 2001-08-17 | Early-late detection in a cdma receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60136907D1 true DE60136907D1 (de) | 2009-01-22 |
Family
ID=24605770
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60136907T Expired - Lifetime DE60136907D1 (de) | 2000-08-28 | 2001-08-17 | Früh-spät detektion in einem cdma empfänger |
DE60131362T Expired - Lifetime DE60131362T2 (de) | 2000-08-28 | 2001-08-27 | Nachführung eines mehrweg-aufgelösten signals in einem rake-empfänger |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60131362T Expired - Lifetime DE60131362T2 (de) | 2000-08-28 | 2001-08-27 | Nachführung eines mehrweg-aufgelösten signals in einem rake-empfänger |
Country Status (8)
Country | Link |
---|---|
US (2) | US6901105B1 (de) |
EP (1) | EP1228577B1 (de) |
JP (2) | JP4836158B2 (de) |
KR (2) | KR100873503B1 (de) |
CN (1) | CN1254021C (de) |
AT (2) | ATE417412T1 (de) |
DE (2) | DE60136907D1 (de) |
WO (1) | WO2002019556A2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1117185A1 (de) | 2000-01-14 | 2001-07-18 | Lucent Technologies Inc. | Verfahren und RAKE-Empfänger zur Kodenachführung in einem CDMA-Nachrichtenübertragungssystem |
EP1117186A1 (de) * | 2000-01-14 | 2001-07-18 | Lucent Technologies Inc. | Adaptiver Kodenachlauf-RAKE-Empfänger für CDMA-Nachrichtenübertragung |
EP1130792A1 (de) * | 2000-03-03 | 2001-09-05 | Lucent Technologies Inc. | Verfahren und Rake-empfänger für Phasenvektorschätzung in Kommunikationssystemen |
CN1140075C (zh) * | 2000-12-18 | 2004-02-25 | 信息产业部电信传输研究所 | 基于多径能量窗的码分多址系统初始同步与小区搜索装置 |
US6448547B1 (en) * | 2001-01-24 | 2002-09-10 | Applied Optoelectronics, Inc. | Method for determining photodiode performance parameters |
GB2381422A (en) * | 2001-10-24 | 2003-04-30 | Ipwireless Inc | Code division multiple access receiver |
JP3813490B2 (ja) * | 2001-10-30 | 2006-08-23 | 富士通株式会社 | スペクトラム拡散レイク受信機 |
EP1365518A1 (de) * | 2002-05-21 | 2003-11-26 | Nokia Corporation | Verfahren und Vorrichtung zur Synchronisierung von DS-CDMA Mehrwegsignalen |
EP1372269A1 (de) * | 2002-06-12 | 2003-12-17 | Agilent Technologies, Inc. - a Delaware corporation - | Verbesserte Spreizspektrum-RAKE-empfänger |
KR100923518B1 (ko) | 2002-11-22 | 2009-10-27 | 인터디지탈 테크날러지 코포레이션 | 복소 가중치 생성(cwg) 알고리즘을 이용한 레이크수신기에서의 채널 이득 추정 |
US7310365B2 (en) * | 2003-10-31 | 2007-12-18 | Texas Instruments Incorporated | Group decision rule in code tracking using a delay lock loop (DLL) |
BR0318570A (pt) | 2003-11-04 | 2006-10-10 | Thomson Licensing | rastreamento inteligente de código para sistemas de espectro de difusão |
JP2005142939A (ja) * | 2003-11-07 | 2005-06-02 | Fujitsu Ltd | 無線受信機 |
US7231184B2 (en) * | 2003-12-05 | 2007-06-12 | Texas Instruments Incorporated | Low overhead transmit channel estimation |
US7295145B2 (en) * | 2004-07-21 | 2007-11-13 | Daniel Alexander Weber | Selective-sampling receiver |
US8026839B2 (en) * | 2004-07-21 | 2011-09-27 | Daniel Alexander Weber | Selective-sampling receiver |
US7515876B2 (en) * | 2005-05-03 | 2009-04-07 | Agere Systems Inc. | Rake receiver with time-shared fingers |
US8934587B2 (en) | 2011-07-21 | 2015-01-13 | Daniel Weber | Selective-sampling receiver |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4991147A (en) * | 1973-04-26 | 1991-02-05 | The United States Of America As Represented By The Secretary Of The Navy | Preformed beam tracker |
US4606051A (en) * | 1983-11-10 | 1986-08-12 | Universal Data Systems, Inc. | QPSK demodulator with I and Q post-detection data correction |
US5309482A (en) * | 1992-03-30 | 1994-05-03 | Novatel Communications Ltd. | Receiver having an adjustable matched filter |
JP3128992B2 (ja) * | 1992-10-09 | 2001-01-29 | ソニー株式会社 | 受信装置 |
JP2952305B2 (ja) * | 1993-10-14 | 1999-09-27 | エヌ・ティ・ティ移動通信網株式会社 | 相関検出器および通信装置 |
JP3305877B2 (ja) * | 1994-06-23 | 2002-07-24 | 株式会社東芝 | スペクトラム拡散無線通信システムおよびこのシステムで使用される無線通信装置 |
US6047017A (en) * | 1996-04-25 | 2000-04-04 | Cahn; Charles R. | Spread spectrum receiver with multi-path cancellation |
US5914949A (en) | 1996-12-17 | 1999-06-22 | Lucent Technologies Inc. | Circuit and method for tracking finger off-set in a spread-spectrum rake receiver and wireless infrastructure employing the same |
JP2853742B2 (ja) * | 1997-06-10 | 1999-02-03 | 日本電気株式会社 | 直接拡散/符号分割多重方式干渉除去受信装置 |
US6549559B2 (en) * | 1997-12-23 | 2003-04-15 | Koninklijke Philips Electronics N.V. | Apparatus and method for locking onto a psuedo-noise code in an IS-95 spread spectrum communications system |
US6839378B1 (en) | 1998-01-12 | 2005-01-04 | Ericsson, Inc. | Method and apparatus for multipath delay estimation in direct sequence spread spectrum communication systems |
JP2973416B1 (ja) | 1998-06-15 | 1999-11-08 | 日本電気株式会社 | Rake受信回路 |
US6041073A (en) * | 1998-09-18 | 2000-03-21 | Golden Bridge Technology, Inc. | Multi-clock matched filter for receiving signals with multipath |
US6201828B1 (en) * | 1998-11-12 | 2001-03-13 | Nortel Networks Limited | Fine estimation of multipath delays in spread-spectrum signals |
GB2345421B (en) * | 1998-12-23 | 2004-05-26 | Symbionics Limted | A direct-sequence spread-sprectrum receiver |
US20030108090A1 (en) * | 2000-03-30 | 2003-06-12 | Diego Giancola | Rake receiver and a method of operating a rake receiver |
JP2002076990A (ja) * | 2000-08-31 | 2002-03-15 | Matsushita Electric Ind Co Ltd | Cdma受信装置及びcdma受信方法 |
-
2000
- 2000-08-28 US US09/649,672 patent/US6901105B1/en not_active Expired - Lifetime
- 2000-11-29 US US09/727,113 patent/US6954486B2/en not_active Expired - Lifetime
-
2001
- 2001-08-17 JP JP2002523737A patent/JP4836158B2/ja not_active Expired - Fee Related
- 2001-08-17 DE DE60136907T patent/DE60136907D1/de not_active Expired - Lifetime
- 2001-08-17 KR KR1020027005323A patent/KR100873503B1/ko not_active IP Right Cessation
- 2001-08-17 AT AT01983440T patent/ATE417412T1/de not_active IP Right Cessation
- 2001-08-27 KR KR1020027005388A patent/KR100810780B1/ko not_active IP Right Cessation
- 2001-08-27 WO PCT/EP2001/009930 patent/WO2002019556A2/en active IP Right Grant
- 2001-08-27 JP JP2002523738A patent/JP4815563B2/ja not_active Expired - Fee Related
- 2001-08-27 CN CNB018025811A patent/CN1254021C/zh not_active Expired - Fee Related
- 2001-08-27 DE DE60131362T patent/DE60131362T2/de not_active Expired - Lifetime
- 2001-08-27 AT AT01960714T patent/ATE378737T1/de not_active IP Right Cessation
- 2001-08-27 EP EP01960714A patent/EP1228577B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6954486B2 (en) | 2005-10-11 |
JP4815563B2 (ja) | 2011-11-16 |
CN1254021C (zh) | 2006-04-26 |
WO2002019556A2 (en) | 2002-03-07 |
ATE417412T1 (de) | 2008-12-15 |
EP1228577A2 (de) | 2002-08-07 |
DE60131362T2 (de) | 2008-10-16 |
KR100810780B1 (ko) | 2008-03-06 |
KR20020043252A (ko) | 2002-06-08 |
JP2004507969A (ja) | 2004-03-11 |
KR20020043245A (ko) | 2002-06-08 |
ATE378737T1 (de) | 2007-11-15 |
EP1228577B1 (de) | 2007-11-14 |
JP2004507968A (ja) | 2004-03-11 |
JP4836158B2 (ja) | 2011-12-14 |
CN1389025A (zh) | 2003-01-01 |
US20020044592A1 (en) | 2002-04-18 |
US6901105B1 (en) | 2005-05-31 |
KR100873503B1 (ko) | 2008-12-15 |
WO2002019556A3 (en) | 2002-05-16 |
DE60131362D1 (de) | 2007-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8328 | Change in the person/name/address of the agent |
Representative=s name: RICHTER, WERDERMANN, GERBAULET & HOFMANN, 20354 HA |
|
8364 | No opposition during term of opposition |