DE69131167D1 - Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger - Google Patents
Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfängerInfo
- Publication number
- DE69131167D1 DE69131167D1 DE69131167T DE69131167T DE69131167D1 DE 69131167 D1 DE69131167 D1 DE 69131167D1 DE 69131167 T DE69131167 T DE 69131167T DE 69131167 T DE69131167 T DE 69131167T DE 69131167 D1 DE69131167 D1 DE 69131167D1
- Authority
- DE
- Germany
- Prior art keywords
- distorbed
- equalizing
- receiver
- signal
- distorbed signal
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/03299—Arrangements for operating in conjunction with other apparatus with noise-whitening circuitry
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
- H04L25/0218—Channel estimation of impulse response with detection of nulls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Dc Digital Transmission (AREA)
- Noise Elimination (AREA)
- Radio Transmission System (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/630,922 US5251233A (en) | 1990-12-20 | 1990-12-20 | Apparatus and method for equalizing a corrupted signal in a receiver |
PCT/US1991/009479 WO1992011708A1 (en) | 1990-12-20 | 1991-12-17 | Apparatus and method for equalizing a corrupted signal in a receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69131167D1 true DE69131167D1 (de) | 1999-05-27 |
DE69131167T2 DE69131167T2 (de) | 1999-11-11 |
Family
ID=24529123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69131167T Expired - Lifetime DE69131167T2 (de) | 1990-12-20 | 1991-12-17 | Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger |
Country Status (17)
Country | Link |
---|---|
US (1) | US5251233A (de) |
EP (1) | EP0563300B1 (de) |
JP (1) | JPH06506324A (de) |
KR (1) | KR970007362B1 (de) |
CN (1) | CN1035854C (de) |
AR (1) | AR247048A1 (de) |
AU (1) | AU657287B2 (de) |
BR (1) | BR9107237A (de) |
CA (1) | CA2097694A1 (de) |
DE (1) | DE69131167T2 (de) |
ES (1) | ES2131068T3 (de) |
FI (1) | FI106664B (de) |
IL (1) | IL100456A (de) |
MX (1) | MX9102720A (de) |
MY (1) | MY107671A (de) |
NZ (2) | NZ241128A (de) |
WO (1) | WO1992011708A1 (de) |
Families Citing this family (76)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1236977B (it) * | 1989-12-22 | 1993-05-12 | Italtel Spa | Ricevitore per un sistema radiomobile digitale con cancellazione di segnali interferenti isofrequenziali aventi lo stesso tipo di modulazione,e relativo metodo |
FR2696301B1 (fr) * | 1992-09-25 | 1994-11-04 | Alcatel Radiotelephone | Dispositif de filtrage pour égaliseur à estimation de séquence. |
FR2696604B1 (fr) * | 1992-10-07 | 1994-11-04 | Alcatel Radiotelephone | Dispositif d'estimation d'un canal de transmission. |
US5408696A (en) * | 1992-12-11 | 1995-04-18 | Telefonaktiebolaget L M Ericsson | Method and apparatus for correcting a radio signal strength information signal |
JP2605566B2 (ja) * | 1992-12-25 | 1997-04-30 | 日本電気株式会社 | 適応型等化器 |
US5363412A (en) * | 1992-12-28 | 1994-11-08 | Motorola, Inc. | Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization |
JPH06252699A (ja) * | 1993-03-01 | 1994-09-09 | Sony Corp | 時分割多重化処理方式における自動等化器 |
SE513657C2 (sv) * | 1993-06-24 | 2000-10-16 | Ericsson Telefon Ab L M | Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare |
FR2710214B1 (fr) * | 1993-09-15 | 1995-10-20 | Alcatel Mobile Comm France | Détecteur à seuil pour système de transmission radionumérique, dispositifs comprenant un tel détecteur à seuil et utilisation correspondante. |
US5400269A (en) * | 1993-09-20 | 1995-03-21 | Rockwell International Corporation | Closed-loop baseband controller for a rebalance loop of a quartz angular rate sensor |
JP3560991B2 (ja) * | 1993-09-20 | 2004-09-02 | 株式会社東芝 | 適応型最尤系列推定装置 |
US5602507A (en) * | 1993-11-05 | 1997-02-11 | Ntt Mobile Communications Network Inc. | Adaptive demodulating method for generating replica and demodulator thereof |
US5514998A (en) * | 1994-01-27 | 1996-05-07 | Hughes Aircraft Company | Method and system for demodulating GMSK signals in a cellular digital packet data system |
FR2719961B1 (fr) * | 1994-05-11 | 1996-06-21 | Alcatel Mobile Comm France | Dispositif d'estimation de la qualité d'un canal de transmission et utilisation correspondante. |
US5844951A (en) * | 1994-06-10 | 1998-12-01 | Northeastern University | Method and apparatus for simultaneous beamforming and equalization |
US5614914A (en) * | 1994-09-06 | 1997-03-25 | Interdigital Technology Corporation | Wireless telephone distribution system with time and space diversity transmission for determining receiver location |
SE503522C2 (sv) * | 1994-10-31 | 1996-07-01 | Ericsson Telefon Ab L M | Förfarande och anordning för kanalestimering |
JPH08307283A (ja) * | 1995-03-09 | 1996-11-22 | Oki Electric Ind Co Ltd | 最尤系列推定器及び最尤系列推定方法 |
GB2309868A (en) * | 1996-01-30 | 1997-08-06 | Sony Corp | Radio receiver detects FCCH synchronising signal |
US5822368A (en) * | 1996-04-04 | 1998-10-13 | Lucent Technologies Inc. | Developing a channel impulse response by using distortion |
US5905757A (en) * | 1996-10-04 | 1999-05-18 | Motorola, Inc. | Filter co-processor |
JP3311943B2 (ja) * | 1996-10-18 | 2002-08-05 | 松下電器産業株式会社 | 干渉信号除去装置 |
FI102578B (fi) | 1996-11-27 | 1998-12-31 | Nokia Telecommunications Oy | Menetelmä taajuuseron mittaamiseksi ja vastaanotin |
US5848108A (en) * | 1996-11-29 | 1998-12-08 | Northern Telecom Limited | Selective filtering for co-channel interference reduction |
KR100241890B1 (ko) | 1997-01-10 | 2000-03-02 | 윤종용 | 디지털 통신 시스템에서 간섭 제거 회로 |
US5946349A (en) * | 1997-04-30 | 1999-08-31 | Lucent Technologies Inc. | Method for coefficient smoothing in adaptive equalizer systems |
IL121843A (en) * | 1997-09-28 | 2000-06-29 | Dspc Israel Ltd | Detection in the presence of co-channel interference |
JP3119351B2 (ja) * | 1997-11-28 | 2000-12-18 | 日本電気株式会社 | 受信信号の等化方法及び回路 |
GB2333015B (en) * | 1997-12-31 | 2000-03-29 | Samsung Electronics Co Ltd | Controlling state number of viterbi equalizer having variable state number |
GB2335578B (en) * | 1998-03-17 | 2000-07-12 | Samsung Electronics Co Ltd | Add-compare selection circuit |
EP0966113B1 (de) * | 1998-06-19 | 2003-12-10 | Motorola Semiconducteurs S.A. | Verfahren und Vorrichtung zum Entzerren in einem Funkempfänger |
ATE270482T1 (de) | 1998-07-21 | 2004-07-15 | Nokia Corp | Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal |
EP0977384A1 (de) * | 1998-07-31 | 2000-02-02 | Hewlett-Packard Company | Verfahren und Einrichtung für die Messung des Energiespektrums eines mobiles Handapparats |
US6381271B1 (en) * | 1998-08-17 | 2002-04-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Low complexity decision feedback sequence estimation |
AU1025399A (en) | 1998-09-22 | 2000-04-10 | Nokia Networks Oy | Method and system of configuring a speech recognition system |
ES2178296T3 (es) | 1998-11-18 | 2002-12-16 | Nokia Corp | Un metodo para la estimacion mejorada de la respuesta de impulso de canal en sistemas tdma. |
WO2000030274A1 (en) | 1998-11-18 | 2000-05-25 | Nokia Networks Oy | A method for modifying the channel impulse response in tdma systems |
DE19920819C1 (de) * | 1999-05-06 | 2000-10-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen |
US6466616B1 (en) | 1999-07-02 | 2002-10-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Power efficient equalization |
MY133723A (en) * | 1999-09-17 | 2007-11-30 | Ericsson Telefon Ab L M | "apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal" |
IT1314344B1 (it) * | 1999-12-30 | 2002-12-09 | Telit Mobile Terminals Spa | Metodo ricevitore e sistema di trasmissione wcdma-utra/fdd |
FR2805689B1 (fr) * | 2000-02-29 | 2003-07-04 | Thomson Csf | Procede et dispositif d'estimation d'un canal de propagation |
US6721365B1 (en) * | 2000-04-18 | 2004-04-13 | Shih-Chung Yin | Receiver for a home phone-lines LAN system |
US6907092B1 (en) * | 2000-07-14 | 2005-06-14 | Comsys Communication & Signal Processing Ltd. | Method of channel order selection and channel estimation in a wireless communication system |
DE60032906T2 (de) * | 2000-11-07 | 2007-10-25 | Stmicroelectronics N.V. | Verfahren und Vorrichtung zur Kanalschätzung, insbesondere für ein Mobiltelefon |
FI111886B (fi) | 2000-12-08 | 2003-09-30 | Nokia Corp | Tiedonkäsittelymenetelmä |
WO2002093965A1 (en) * | 2001-05-15 | 2002-11-21 | Telefonaktiebolaget L M Ericsson (Publ) | Co-channel interference suppression by estimating the time of arrival (toa) |
US7079601B2 (en) | 2001-06-19 | 2006-07-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Efficient channel estimation in a digital communications system |
EP1274193A1 (de) * | 2001-07-04 | 2003-01-08 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Verfahren und Vorrichtung zur Bereitstellung von Taktinformation in einem drahtlosen Nachrichtenübertragungsnetzwerk |
EP1294148A1 (de) * | 2001-09-12 | 2003-03-19 | Sony International (Europe) GmbH | Laufzeitstreuungschätzung Mehrwegeschwundkanälen in einem OFDM-Emfänger |
US7227885B2 (en) * | 2001-10-17 | 2007-06-05 | Motorola, Inc. | Correlation method in a communication system and apparatus |
US6640088B2 (en) * | 2001-12-14 | 2003-10-28 | Motorola, Inc. | Method and system for adaptive channel estimation techniques |
US6873662B2 (en) * | 2002-02-14 | 2005-03-29 | Interdigital Technology Corporation | Wireless communication system having adaptive threshold for timing deviation measurement and method |
US7953193B2 (en) * | 2002-03-28 | 2011-05-31 | Broadcom Corporation | Sparse channel equalization |
GB0209792D0 (en) * | 2002-04-29 | 2002-06-05 | Thales Plc | Channel estimation |
US7266146B2 (en) * | 2002-06-18 | 2007-09-04 | Ralink Technology, Inc. | Symbol-based decision feedback equalizer (DFE) optimal equalization method and apparatus with maximum likelihood sequence estimation for wireless receivers under multipath channels |
SG108861A1 (en) * | 2002-07-18 | 2005-02-28 | Oki Techno Ct Singapore Pte | High rate receiver |
US7287412B2 (en) * | 2003-06-03 | 2007-10-30 | Nano-Proprietary, Inc. | Method and apparatus for sensing hydrogen gas |
US7203257B2 (en) * | 2003-05-23 | 2007-04-10 | Zenith Electronics Corporation | Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads |
US20070240491A1 (en) * | 2003-06-03 | 2007-10-18 | Nano-Proprietary, Inc. | Hydrogen Sensor |
KR100575723B1 (ko) * | 2003-06-14 | 2006-05-03 | 엘지전자 주식회사 | 시분할 동기 코드 분할 방식의 채널 판단 방법 |
US8391413B2 (en) | 2003-12-19 | 2013-03-05 | Qualcomm Incorporated | Channel estimation for an OFDM communication system with inactive subbands |
US20050232347A1 (en) * | 2004-04-15 | 2005-10-20 | Mediatek Incorporation | Apparatus and method for noise enhancement reduction in an adaptive equalizer |
US20060029126A1 (en) * | 2004-04-15 | 2006-02-09 | Mediatek Inc. | Apparatus and method for noise enhancement reduction in an adaptive equalizer |
JP4918488B2 (ja) * | 2004-08-16 | 2012-04-18 | ゼットティーイー(ユーエスエー)インコーポレーテッド | 無線通信における高速度セル探索及び正確な同期 |
EP1794961A2 (de) | 2004-09-10 | 2007-06-13 | TTP Com Limited | Verfeinerung einer kanalansprechkalkulation |
GB0420179D0 (en) * | 2004-09-10 | 2004-10-13 | Ttp Communications Ltd | Refinement of channel response calculation |
US8761312B2 (en) * | 2005-02-11 | 2014-06-24 | Qualcomm Incorporated | Selection of a thresholding parameter for channel estimation |
US7899431B2 (en) | 2005-04-04 | 2011-03-01 | Freescale Semiconductor, Inc. | DC offset correction system for a receiver with baseband gain control |
US7844232B2 (en) * | 2005-05-25 | 2010-11-30 | Research In Motion Limited | Joint space-time optimum filters (JSTOF) with at least one antenna, at least one channel, and joint filter weight and CIR estimation |
CA2615107A1 (en) * | 2005-08-03 | 2007-02-15 | Nano-Proprietary, Inc. | Continuous range hydrogen sensor |
US20070127608A1 (en) * | 2005-12-06 | 2007-06-07 | Jacob Scheim | Blind interference mitigation in a digital receiver |
DE102006056158B4 (de) * | 2006-11-28 | 2011-11-17 | Infineon Technologies Ag | Kanalschätzung für OFDM Systeme |
US8340683B2 (en) * | 2009-09-21 | 2012-12-25 | Andrew, Llc | System and method for a high throughput GSM location solution |
KR20130049978A (ko) * | 2011-11-07 | 2013-05-15 | 한국전자통신연구원 | 채널 추정 장치 및 방법 |
US9578469B2 (en) | 2014-10-02 | 2017-02-21 | Motorola Solutions, Inc. | Method and system for direct mode communication within a talkgroup |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4112370A (en) * | 1976-08-06 | 1978-09-05 | Signatron, Inc. | Digital communications receiver for dual input signal |
FI844810A0 (fi) * | 1984-12-05 | 1984-12-05 | Nokia Oy Ab | Foerfarande foer mottagning och detektering av digitala signaler. |
DE3543898A1 (de) * | 1985-12-12 | 1987-06-19 | Blaupunkt Werke Gmbh | Entzerrer in form eines digitalen nichtrekursiven filters |
US4885757A (en) * | 1987-06-01 | 1989-12-05 | Texas Instruments Incorporated | Digital adaptive receiver employing maximum-likelihood sequence estimation with neural networks |
US4829543A (en) * | 1987-12-04 | 1989-05-09 | Motorola, Inc. | Phase-coherent TDMA quadrature receiver for multipath fading channels |
GB2215567B (en) * | 1988-03-05 | 1992-11-18 | Plessey Co Plc | Improvements in or relating to equalisers |
US5031193A (en) * | 1989-11-13 | 1991-07-09 | Motorola, Inc. | Method and apparatus for diversity reception of time-dispersed signals |
JPH03195129A (ja) * | 1989-12-22 | 1991-08-26 | Mitsubishi Electric Corp | 最尤系列推定装置 |
US5164959A (en) * | 1991-01-22 | 1992-11-17 | Hughes Aircraft Company | Digital equalization method and apparatus |
-
1990
- 1990-12-20 US US07/630,922 patent/US5251233A/en not_active Expired - Lifetime
-
1991
- 1991-12-17 WO PCT/US1991/009479 patent/WO1992011708A1/en active IP Right Grant
- 1991-12-17 JP JP4503362A patent/JPH06506324A/ja active Pending
- 1991-12-17 CA CA002097694A patent/CA2097694A1/en not_active Abandoned
- 1991-12-17 ES ES92903693T patent/ES2131068T3/es not_active Expired - Lifetime
- 1991-12-17 DE DE69131167T patent/DE69131167T2/de not_active Expired - Lifetime
- 1991-12-17 BR BR9107237A patent/BR9107237A/pt not_active Application Discontinuation
- 1991-12-17 AU AU91654/91A patent/AU657287B2/en not_active Expired
- 1991-12-17 EP EP92903693A patent/EP0563300B1/de not_active Expired - Lifetime
- 1991-12-17 KR KR1019930701865A patent/KR970007362B1/ko not_active IP Right Cessation
- 1991-12-19 MX MX9102720A patent/MX9102720A/es unknown
- 1991-12-20 AR AR91321470A patent/AR247048A1/es active
- 1991-12-20 NZ NZ241128A patent/NZ241128A/en unknown
- 1991-12-20 IL IL10045691A patent/IL100456A/en not_active IP Right Cessation
- 1991-12-20 CN CN91112827A patent/CN1035854C/zh not_active Expired - Lifetime
- 1991-12-20 MY MYPI91002363A patent/MY107671A/en unknown
- 1991-12-20 NZ NZ270872A patent/NZ270872A/en unknown
-
1993
- 1993-06-18 FI FI932823A patent/FI106664B/fi active
Also Published As
Publication number | Publication date |
---|---|
MX9102720A (es) | 1992-06-01 |
WO1992011708A1 (en) | 1992-07-09 |
FI932823A (fi) | 1993-06-18 |
ES2131068T3 (es) | 1999-07-16 |
BR9107237A (pt) | 1994-04-05 |
AU657287B2 (en) | 1995-03-09 |
US5251233A (en) | 1993-10-05 |
IL100456A (en) | 1995-03-30 |
IL100456A0 (en) | 1992-09-06 |
KR930703750A (ko) | 1993-11-30 |
FI932823A0 (fi) | 1993-06-18 |
NZ241128A (en) | 1997-01-29 |
MY107671A (en) | 1996-05-30 |
KR970007362B1 (ko) | 1997-05-07 |
NZ270872A (en) | 1997-01-29 |
AU9165491A (en) | 1992-07-22 |
EP0563300B1 (de) | 1999-04-21 |
JPH06506324A (ja) | 1994-07-14 |
FI106664B (fi) | 2001-03-15 |
CN1067344A (zh) | 1992-12-23 |
CN1035854C (zh) | 1997-09-10 |
AR247048A1 (es) | 1994-10-31 |
EP0563300A4 (en) | 1993-12-22 |
CA2097694A1 (en) | 1992-06-21 |
DE69131167T2 (de) | 1999-11-11 |
EP0563300A1 (de) | 1993-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: SCHUMACHER & WILLSAU, PATENTANWALTSSOZIETAET, 80335 MUENCHEN |