CN1162981C - 利用可变长度的累加搜索器接收信息的设备和方法 - Google Patents
利用可变长度的累加搜索器接收信息的设备和方法 Download PDFInfo
- Publication number
- CN1162981C CN1162981C CNB008136610A CN00813661A CN1162981C CN 1162981 C CN1162981 C CN 1162981C CN B008136610 A CNB008136610 A CN B008136610A CN 00813661 A CN00813661 A CN 00813661A CN 1162981 C CN1162981 C CN 1162981C
- Authority
- CN
- China
- Prior art keywords
- composite signal
- correlation
- frequency expansion
- expansion sequence
- time deviation
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
- H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
-
- 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
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
-
- 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
-
- 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
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
-
- 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
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
-
- 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)
- Mobile Radio Communication Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/408,624 | 1999-09-30 | ||
US09/408,624 US6377615B1 (en) | 1999-09-30 | 1999-09-30 | Apparatus and methods for receiving information using variable length accumulation searchers |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1377532A CN1377532A (zh) | 2002-10-30 |
CN1162981C true CN1162981C (zh) | 2004-08-18 |
Family
ID=23617043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008136610A Expired - Fee Related CN1162981C (zh) | 1999-09-30 | 2000-08-11 | 利用可变长度的累加搜索器接收信息的设备和方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6377615B1 (zh) |
EP (1) | EP1216514B1 (zh) |
JP (1) | JP2003511890A (zh) |
CN (1) | CN1162981C (zh) |
AT (1) | ATE295019T1 (zh) |
AU (1) | AU7056500A (zh) |
DE (1) | DE60019943T2 (zh) |
MY (1) | MY122627A (zh) |
WO (1) | WO2001026244A1 (zh) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6421371B1 (en) * | 1998-11-17 | 2002-07-16 | Ericsson Inc. | Modulation sequence synchronization methods and apparatus employing partial sequence correlation |
US6922434B2 (en) * | 1999-10-19 | 2005-07-26 | Ericsson Inc. | Apparatus and methods for finger delay selection in RAKE receivers |
DE19961557A1 (de) * | 1999-12-20 | 2001-07-05 | Infineon Technologies Ag | Verfahren und Einrichtung zum Synchronisieren eines Mobilfunkempfängers mit einer Zeitschlitzstruktur eines empfangenen Funksignals |
SE0003289D0 (sv) * | 2000-05-18 | 2000-09-15 | Ericsson Telefon Ab L M | Radio receiver and channel estimator |
GB2368238B (en) * | 2000-10-17 | 2004-04-14 | Ubinetics Ltd | A method of searching a code space |
US7769078B2 (en) * | 2000-12-22 | 2010-08-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver |
US6912241B2 (en) * | 2001-03-08 | 2005-06-28 | Regents Of University Of Minnesota | Chip-interleaved, block-spread multi-user communication |
ATE291292T1 (de) * | 2001-04-19 | 2005-04-15 | Ericsson Telefon Ab L M | Eine cdma mobilstation mit leistungsersparung unter verwendung eines anpassbaren korrelationsfensters in der pfadsuche |
WO2002087100A1 (en) * | 2001-04-19 | 2002-10-31 | Telefonaktiebolaget Lm Ericsson (Publ) | A cdma mobile station with power saving using adaptive correlation window in path search |
JP3970565B2 (ja) * | 2001-09-12 | 2007-09-05 | 富士通株式会社 | 受信装置、受信方法、および、半導体装置 |
FI112547B (fi) | 2001-12-21 | 2003-12-15 | Nokia Corp | Menetelmä uudelleentahdistumisen suorittamiseksi sijainninmääritysvastaanottimessa ja elektroniikkalaite |
US20040072553A1 (en) * | 2002-09-20 | 2004-04-15 | Xiaohui Wang | Methods, systems, and computer program products for selecting delay positions for a RAKE receiver by adjusting the delay positions based on comparisons of signal to interference ratios and/or powers for multi-path signals over time |
US6795486B2 (en) * | 2002-09-23 | 2004-09-21 | Thomson Licensing S.A. | Variable-length correlator for spread-spectrum communications |
US7403509B2 (en) * | 2003-05-09 | 2008-07-22 | Regents Of The University Of Minnesota | Receiver for chip-interleaved block-spread multi-user communication systems |
US7330452B2 (en) * | 2003-06-13 | 2008-02-12 | Qualcomm Incorporated | Inter-frequency neighbor list searching |
US7428262B2 (en) * | 2003-08-13 | 2008-09-23 | Motorola, Inc. | Channel estimation in a rake receiver of a CDMA communication system |
US7460583B2 (en) * | 2003-12-15 | 2008-12-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for path searching and verification |
US20060104333A1 (en) * | 2004-11-18 | 2006-05-18 | Motorola, Inc. | Acknowledgment for a time division channel |
US7751467B2 (en) * | 2006-12-04 | 2010-07-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for selecting signal processing delays based on historical selection data |
JP5521284B2 (ja) * | 2008-05-14 | 2014-06-11 | セイコーエプソン株式会社 | 測位方法及び測位装置 |
US8064552B2 (en) | 2008-06-02 | 2011-11-22 | Harris Corporation | Adaptive correlation |
US8634490B2 (en) * | 2011-07-11 | 2014-01-21 | Indian Institute Of Science | Techniques for detection of signals in multiple-input multiple-output communication systems |
CN106254025B (zh) | 2016-04-27 | 2018-09-04 | 北京智谷睿拓技术服务有限公司 | 扩频方法、扩频控制方法、及其装置 |
US10951305B2 (en) * | 2018-04-26 | 2021-03-16 | Lynk Global, Inc. | Orbital base station filtering of interference from terrestrial-terrestrial communications of devices that use protocols in common with orbital-terrestrial communications |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4318368C1 (de) | 1993-05-28 | 1994-07-14 | Siemens Ag | Verfahren zum Gewinnen eines einen Ausfall der Synchronisation zwischen einer Pseudozufallssignalfolge eines Senders und einer Referenz-Pseudozufallssignalfolge eines Empfängers anzeigenden Signals |
BR9506273A (pt) * | 1994-07-29 | 1997-08-12 | Qualcomm Inc | Método para determinar a sincronização da sequência pn em um sistema de comunicação de espectro de propagação por sequência direta e aparelho e sistema para selecionar uma sequência de demodulação sincronizada |
US5577025A (en) * | 1995-06-30 | 1996-11-19 | Qualcomm Incorporated | Signal acquisition in a multi-user communication system using multiple walsh channels |
US5950131A (en) | 1996-10-29 | 1999-09-07 | Motorola, Inc. | Method and apparatus for fast pilot channel acquisition using a matched filter in a CDMA radiotelephone |
EP0930723A3 (en) | 1998-01-14 | 2003-07-30 | Yozan Inc. | Direct sequence code division multiple access cellular system |
US6801565B1 (en) * | 1999-06-25 | 2004-10-05 | Ericsson Inc. | Multi-stage rake combining methods and apparatus |
-
1999
- 1999-09-30 US US09/408,624 patent/US6377615B1/en not_active Expired - Lifetime
-
2000
- 2000-07-21 MY MYPI20003336A patent/MY122627A/en unknown
- 2000-08-11 EP EP00959208A patent/EP1216514B1/en not_active Expired - Lifetime
- 2000-08-11 CN CNB008136610A patent/CN1162981C/zh not_active Expired - Fee Related
- 2000-08-11 WO PCT/US2000/021847 patent/WO2001026244A1/en active IP Right Grant
- 2000-08-11 JP JP2001529091A patent/JP2003511890A/ja active Pending
- 2000-08-11 AT AT00959208T patent/ATE295019T1/de not_active IP Right Cessation
- 2000-08-11 AU AU70565/00A patent/AU7056500A/en not_active Abandoned
- 2000-08-11 DE DE60019943T patent/DE60019943T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2003511890A (ja) | 2003-03-25 |
EP1216514B1 (en) | 2005-05-04 |
ATE295019T1 (de) | 2005-05-15 |
DE60019943D1 (de) | 2005-06-09 |
DE60019943T2 (de) | 2005-11-17 |
MY122627A (en) | 2006-04-29 |
US6377615B1 (en) | 2002-04-23 |
EP1216514A1 (en) | 2002-06-26 |
WO2001026244A1 (en) | 2001-04-12 |
AU7056500A (en) | 2001-05-10 |
CN1377532A (zh) | 2002-10-30 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: OPTIS WIRELESS TECHNOLOGY LLC Free format text: FORMER OWNER: CLUSTER CO., LTD. Effective date: 20150417 Owner name: CLUSTER CO., LTD. Free format text: FORMER OWNER: ERICSSON CO. Effective date: 20150417 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150417 Address after: Texas, USA Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Texas, USA Patentee before: Clastres LLC Effective date of registration: 20150417 Address after: Texas, USA Patentee after: Clastres LLC Address before: North Carolina Patentee before: ERICSSON Inc. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040818 Termination date: 20170811 |