NO961641L - Fremgangsmåte for CDMA-mottaking, samt mottaker - Google Patents
Fremgangsmåte for CDMA-mottaking, samt mottakerInfo
- Publication number
- NO961641L NO961641L NO961641A NO961641A NO961641L NO 961641 L NO961641 L NO 961641L NO 961641 A NO961641 A NO 961641A NO 961641 A NO961641 A NO 961641A NO 961641 L NO961641 L NO 961641L
- Authority
- NO
- Norway
- Prior art keywords
- receiver
- pct
- received signal
- sec
- well
- Prior art date
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
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
- H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Noise Elimination (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Oppfinnelsen angår en mottakingsfremgangsmåte og en mottaker i et dataoverf«ringssystem hvor en CDMA multiaksess-metode anvendes, hvor mottakeren omfatter en dekorrelerende detektor (33). For at. mottakeren skal fungere effektivt både i tilfellet med flerbruker-interferens og på en flerbane-kanal,. omfatter den dekorrelerende detektoren (33) i mottakeren ifølge oppfinnelsen en separat anordning. (40) for å utjevne virkningen av flerbane-kanalen i det mottatte signalet, og filtere (41) som er tilpasset kodene som inneholdes i det mottatte signalet, og en anordning (42) for å multiplisere det mottatte signalet med den inverse matrise av krysskorrelasjonsmatrisen for kodene som inneholdes i det mottatte signalet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI943906A FI96651C (fi) | 1994-08-25 | 1994-08-25 | Vastaanottomenetelmä ja vastaanotin |
PCT/FI1995/000451 WO1996006487A1 (en) | 1994-08-25 | 1995-08-23 | Cdma receiving method and receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
NO961641D0 NO961641D0 (no) | 1996-04-24 |
NO961641L true NO961641L (no) | 1996-06-24 |
Family
ID=8541242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO961641A NO961641L (no) | 1994-08-25 | 1996-04-24 | Fremgangsmåte for CDMA-mottaking, samt mottaker |
Country Status (9)
Country | Link |
---|---|
US (1) | US6011812A (no) |
EP (1) | EP0740864B1 (no) |
JP (1) | JP3939751B2 (no) |
CN (1) | CN1077747C (no) |
AT (1) | ATE208106T1 (no) |
DE (1) | DE69523569T2 (no) |
FI (1) | FI96651C (no) |
NO (1) | NO961641L (no) |
WO (1) | WO1996006487A1 (no) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19623665C1 (de) * | 1996-06-13 | 1997-04-30 | Siemens Ag | Verfahren zum Separieren eines empfangenen Signalgemisches |
DE19623667C2 (de) * | 1996-06-13 | 2003-02-13 | Siemens Ag | Verfahren und Einrichtung zur Detektion von nach dem DS-CDMA Prinzip übertragenen Informationen in einer Empfangseinrichtung |
SE507154C2 (sv) * | 1996-08-16 | 1998-04-06 | Ericsson Telefon Ab L M | Anordning och förfarande för estimering av symboler i ett bredbandigt radiosystem |
US5859880A (en) * | 1996-10-31 | 1999-01-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-stage squelch apparatus, and associated method, for a multi-branch receiver |
DE19826036C2 (de) * | 1998-06-12 | 2000-05-25 | Bosch Gmbh Robert | Verfahren zur Trennung von mehreren überlagerten codierten Nutzersignalen |
JP2970656B1 (ja) * | 1998-06-25 | 1999-11-02 | 日本電気株式会社 | Ds−cdmaマルチユーザ干渉キャンセラ |
US6363104B1 (en) | 1998-10-02 | 2002-03-26 | Ericsson Inc. | Method and apparatus for interference cancellation in a rake receiver |
FR2792788B1 (fr) | 1999-04-21 | 2001-07-13 | Mitsubishi Electric France | PROCEDE D'EQUILIBRAGE DU RAPPORT Eb/I DANS UN SYSTEME cdma A MULTIPLEXAGE DE SERVICE ET SYSTEME DE TELECOMMUNICATION L'UTILISANT |
US6233273B1 (en) * | 1999-06-29 | 2001-05-15 | Intersil Americas Inc. | Rake receiver with embedded decision feedback equalizer |
US6690715B2 (en) | 1999-06-29 | 2004-02-10 | Intersil Americas Inc. | Rake receiver with embedded decision feedback equalizer |
FI19992653A (fi) * | 1999-12-09 | 2001-06-10 | Nokia Mobile Phones Ltd | Menetelmä vastaanottimen tahdistamiseksi ja vastaanotin |
US6614836B1 (en) * | 2000-01-28 | 2003-09-02 | Intersil Americas Inc. | Biased-corrected rake receiver for direct sequence spread spectrum waveform |
EP1128564A1 (en) * | 2000-02-28 | 2001-08-29 | Lucent Technologies Inc. | Multi-user detection CDMA receivers in mobile telecommunications systems |
US7130292B2 (en) * | 2000-06-02 | 2006-10-31 | Essex Corporation | Optical processor enhanced receiver architecture (opera) |
AU2001219046A1 (en) | 2000-09-13 | 2002-03-26 | Nortel Networks Limited | Multi-user detection in a cdma communication system |
US6771690B2 (en) * | 2000-12-29 | 2004-08-03 | Nokia Corporation | Method and apparatus for providing blind adaptive estimation and reception |
US7751469B2 (en) * | 2001-02-20 | 2010-07-06 | Massachusetts Institute Of Technology | Correlation shaping matched filter receiver |
US7636403B2 (en) * | 2001-02-20 | 2009-12-22 | Massachusetts Institute Of Technology | Correlation shaping multi-signature receiver |
US7376175B2 (en) * | 2001-03-14 | 2008-05-20 | Mercury Computer Systems, Inc. | Wireless communications systems and methods for cache enabled multiple processor based multiple user detection |
WO2002073937A2 (en) | 2001-03-14 | 2002-09-19 | Mercury Computer Systems, Inc. | Wireless communications methods and systems for long-code and other spread spectrum waveform processing |
FR2825856B1 (fr) * | 2001-06-06 | 2003-09-12 | Nortel Networks Ltd | Procede et dispositif de traitement de signal dans un recepteur de radiocommunication a etalement de spectre |
US7327809B2 (en) * | 2001-06-08 | 2008-02-05 | Broadcom Corporation | Channel equalization with SCDMA modulation |
US7161974B2 (en) * | 2001-09-10 | 2007-01-09 | Sasken Communication Technologies Ltd. | Method for 2D antenna rake combining in a code division multiplication access system |
US7272366B2 (en) * | 2001-12-17 | 2007-09-18 | Nokia Corporation | Method and apparatus for reducing RF filter induced distortion in a wide bandwidth wireless system by the use of channel-dependent RF filter compensation |
US7593357B2 (en) * | 2002-03-28 | 2009-09-22 | Interdigital Technology Corporation | Transmit processing using receiver functions |
US7218665B2 (en) * | 2003-04-25 | 2007-05-15 | Bae Systems Information And Electronic Systems Integration Inc. | Deferred decorrelating decision-feedback detector for supersaturated communications |
US6944434B2 (en) * | 2003-06-27 | 2005-09-13 | Nokia Corporation | Method and apparatus for suppressing co-channel interference in a receiver |
US7336739B2 (en) * | 2003-09-26 | 2008-02-26 | Lockheed Martin Corporation | Cross-correlation signal detector |
US7437135B2 (en) * | 2003-10-30 | 2008-10-14 | Interdigital Technology Corporation | Joint channel equalizer interference canceller advanced receiver |
US7400692B2 (en) * | 2004-01-14 | 2008-07-15 | Interdigital Technology Corporation | Telescoping window based equalization |
US7613228B2 (en) * | 2005-08-10 | 2009-11-03 | Bae Systems Information And Electronic Systems Integration Inc. | M-Algorithm multiuser detector with correlation based pruning |
US7936810B2 (en) * | 2005-09-08 | 2011-05-03 | Texas Instruments Incorporated | Delayed combining of frequency-domain equalized wireless channels with large delay-spreads |
WO2007103443A2 (en) * | 2006-03-08 | 2007-09-13 | Interdigital Technology Corporation | Apparatus and method for signal separation via spreading codes |
US8130880B1 (en) | 2007-05-23 | 2012-03-06 | Hypress, Inc. | Wideband digital spectrometer |
CN101467562B (zh) * | 2007-12-28 | 2012-09-05 | 内蒙古伊利实业集团股份有限公司 | 一种含有ω-3不饱和脂肪酸的液态乳制品及其生产方法 |
CN101309242B (zh) * | 2008-06-03 | 2012-07-18 | 电子科技大学 | 全通均衡的时间反演超宽带无线通信方法 |
US8249540B1 (en) | 2008-08-07 | 2012-08-21 | Hypres, Inc. | Two stage radio frequency interference cancellation system and method |
US20100232326A1 (en) * | 2009-03-10 | 2010-09-16 | Harris Corporation, Corporation Of The State Of Delaware | Mobile ad-hoc network having interference mitigation and related methods |
US8615030B2 (en) | 2009-05-04 | 2013-12-24 | Qualcomm Incorporated | Method and system for multi-user detection using two-stage processing |
US8599677B2 (en) * | 2009-05-04 | 2013-12-03 | Qualcomm Incorporated | Method and system for multi-user detection using two-stage processing |
US8494029B2 (en) | 2009-05-04 | 2013-07-23 | Qualcomm Incorporated | Method and system for multi-user detection in the presence of multiple spreading factors |
US8494098B2 (en) | 2009-05-04 | 2013-07-23 | Qualcomm Incorporated | Method and system for inter-cell interference cancellation |
US8451963B2 (en) | 2009-06-09 | 2013-05-28 | Qualcomm Incorporated | Method and system for interference cancellation |
US11943083B1 (en) * | 2021-02-22 | 2024-03-26 | Marvell Asia Pte Ltd | Physical layer transceiver with increased noise and interference tolerance and reduced loss |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2691309B1 (fr) * | 1992-05-14 | 1995-05-05 | Matra Communication | Procédé de désétalement en réception d'un signal en large bande. |
JP3181440B2 (ja) * | 1993-07-30 | 2001-07-03 | 松下通信工業株式会社 | Cdma方式通信装置 |
US5345472A (en) * | 1993-08-02 | 1994-09-06 | Motorola, Inc. | Method and apparatus for receiving and decoding communication signals in a CDMA receiver |
US5414699A (en) * | 1993-09-27 | 1995-05-09 | Motorola, Inc. | Method and apparatus for receiving and decoding communication signals in a CDMA receiver using partial de-correlation |
US5377226A (en) * | 1993-10-19 | 1994-12-27 | Hughes Aircraft Company | Fractionally-spaced equalizer for a DS-CDMA system |
US5757845A (en) * | 1994-02-10 | 1998-05-26 | Ntt Mobile Communications Network | Adaptive spread spectrum receiver |
WO1995022208A1 (en) * | 1994-02-14 | 1995-08-17 | Motorola Inc. | Decorrelating receiver for asynchronous cdma channels |
DE69530259T2 (de) * | 1994-04-22 | 2003-12-24 | Ntt Mobile Communications Network Inc., Tokio/Tokyo | Verfahren zum empfangen eines code-division-multiplexsignals |
-
1994
- 1994-08-25 FI FI943906A patent/FI96651C/fi active
-
1995
- 1995-08-23 US US08/632,416 patent/US6011812A/en not_active Expired - Lifetime
- 1995-08-23 EP EP95929114A patent/EP0740864B1/en not_active Expired - Lifetime
- 1995-08-23 CN CN95190945A patent/CN1077747C/zh not_active Expired - Fee Related
- 1995-08-23 JP JP50781796A patent/JP3939751B2/ja not_active Expired - Fee Related
- 1995-08-23 AT AT95929114T patent/ATE208106T1/de not_active IP Right Cessation
- 1995-08-23 WO PCT/FI1995/000451 patent/WO1996006487A1/en active IP Right Grant
- 1995-08-23 DE DE69523569T patent/DE69523569T2/de not_active Expired - Lifetime
-
1996
- 1996-04-24 NO NO961641A patent/NO961641L/no unknown
Also Published As
Publication number | Publication date |
---|---|
CN1077747C (zh) | 2002-01-09 |
NO961641D0 (no) | 1996-04-24 |
JPH09504674A (ja) | 1997-05-06 |
DE69523569D1 (de) | 2001-12-06 |
CN1135814A (zh) | 1996-11-13 |
AU3259295A (en) | 1996-03-14 |
FI96651C (fi) | 1996-07-25 |
DE69523569T2 (de) | 2002-07-11 |
WO1996006487A1 (en) | 1996-02-29 |
US6011812A (en) | 2000-01-04 |
EP0740864B1 (en) | 2001-10-31 |
FI943906A (fi) | 1996-02-26 |
JP3939751B2 (ja) | 2007-07-04 |
FI96651B (fi) | 1996-04-15 |
AU686866B2 (en) | 1998-02-12 |
ATE208106T1 (de) | 2001-11-15 |
FI943906A0 (fi) | 1994-08-25 |
EP0740864A1 (en) | 1996-11-06 |
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