MX9606008A - Sistemas y metodos para comunicacion inalambrica digital utilizando compensacion. - Google Patents
Sistemas y metodos para comunicacion inalambrica digital utilizando compensacion.Info
- Publication number
- MX9606008A MX9606008A MX9606008A MX9606008A MX9606008A MX 9606008 A MX9606008 A MX 9606008A MX 9606008 A MX9606008 A MX 9606008A MX 9606008 A MX9606008 A MX 9606008A MX 9606008 A MX9606008 A MX 9606008A
- Authority
- MX
- Mexico
- Prior art keywords
- equalization
- systems
- methods
- wireless communication
- digital wireless
- Prior art date
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
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
-
- 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
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
-
- 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
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03535—Variable structures
- H04L2025/03547—Switching between time domain structures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
La presente invencion se refiere a un sistema de comunicacion digital inalámbrico, tal como un sistema de comunicacion movil celular, que supera la dispersion de canal y desvanecimiento de multiples trayectorias, con un compensador que utiliza estimacion de canal de division de matriz seguido por estimacion de secuencia de probabilidad máxima por cada ranura de tiempo. La estimacion de canal de division de matriz involucra almacenar transformadas de los símbolos de entrenamiento y producir una combinacion lineal de los símbolos de entrenamiento recibidos y las transformadas almacenadas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/566,771 US5805638A (en) | 1995-12-04 | 1995-12-04 | Systems and methods of digital wireless communication using equalization |
US08566771 | 1995-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
MXPA96006008A MXPA96006008A (es) | 1997-08-01 |
MX9606008A true MX9606008A (es) | 1997-08-30 |
Family
ID=24264318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9606008A MX9606008A (es) | 1995-12-04 | 1996-12-02 | Sistemas y metodos para comunicacion inalambrica digital utilizando compensacion. |
Country Status (3)
Country | Link |
---|---|
US (1) | US5805638A (es) |
CA (1) | CA2188077A1 (es) |
MX (1) | MX9606008A (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6067295A (en) * | 1997-01-13 | 2000-05-23 | Lucent Technologies, Inc. | Method and apparatus for reducing error in recovering information bits in a wireless system |
DE19747457C2 (de) * | 1997-10-27 | 2000-04-06 | Siemens Ag | Verfahren und Anordnung zur Übertragung von Daten über eine Funkschnittstelle in einem Funk-Kommunikationssystem |
US6084926A (en) * | 1997-12-08 | 2000-07-04 | Ericsson Inc. | Method and system for demodulating radio signals |
US6141393A (en) * | 1999-03-03 | 2000-10-31 | Motorola, Inc. | Method and device for channel estimation, equalization, and interference suppression |
US6674815B2 (en) * | 1999-06-16 | 2004-01-06 | Ericsson, Inc | Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel |
ATE304769T1 (de) * | 1999-12-27 | 2005-09-15 | Eine mobilstation mit einer auswahl zwischen zwei entzerrern | |
US7006581B2 (en) * | 2000-05-25 | 2006-02-28 | Vigil Armando J | Method for demodulating a digital signal subjected to multipath propagation impairment and an associated receiver |
EP1284562A1 (de) | 2001-08-16 | 2003-02-19 | Alcatel | Verfahren, Empfänger und Empfangsstation zum Entzerren eines Empfangssignals |
US7042967B2 (en) * | 2003-03-03 | 2006-05-09 | Interdigital Technology Corporation | Reduced complexity sliding window based equalizer |
WO2004079927A2 (en) * | 2003-03-03 | 2004-09-16 | Interdigital Technology Corporation | Reduced complexity sliding window based equalizer |
US20050281200A1 (en) * | 2004-06-16 | 2005-12-22 | Gerard Terreault | QAM signal analysis in a network |
KR100833337B1 (ko) | 2004-06-16 | 2008-05-29 | 선라이즈 텔레콤 인코포레이티드 | 네트워크에서 qam 신호 분석 |
US8175200B2 (en) * | 2009-12-18 | 2012-05-08 | Telefonaktiebolaget L M Ericsson (Publ) | Hybrid correlation and least squares channel estimation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3926277A1 (de) * | 1989-08-09 | 1991-02-14 | Philips Patentverwaltung | Empfaenger fuer zeitvariant verzerrte datensignale |
DE4001592A1 (de) * | 1989-10-25 | 1991-05-02 | Philips Patentverwaltung | Empfaenger fuer digitales uebertragungssystem |
JP3172198B2 (ja) * | 1991-03-01 | 2001-06-04 | 株式会社東芝 | 等化方式 |
US5263026A (en) * | 1991-06-27 | 1993-11-16 | Hughes Aircraft Company | Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver |
US5432821A (en) * | 1992-12-02 | 1995-07-11 | University Of Southern California | System and method for estimating data sequences in digital transmissions |
JP2605566B2 (ja) * | 1992-12-25 | 1997-04-30 | 日本電気株式会社 | 適応型等化器 |
US5581580A (en) * | 1993-05-20 | 1996-12-03 | Telefonaktiebolaget Lm Ericsson | Low complexity model based channel estimation algorithm for fading channels |
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 |
US5533063A (en) * | 1994-01-31 | 1996-07-02 | The Regents Of The University Of California | Method and apparatus for multipath channel shaping |
US5557645A (en) * | 1994-09-14 | 1996-09-17 | Ericsson-Ge Mobile Communications Inc. | Channel-independent equalizer device |
-
1995
- 1995-12-04 US US08/566,771 patent/US5805638A/en not_active Expired - Lifetime
-
1996
- 1996-10-17 CA CA002188077A patent/CA2188077A1/en not_active Abandoned
- 1996-12-02 MX MX9606008A patent/MX9606008A/es not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2188077A1 (en) | 1997-06-05 |
US5805638A (en) | 1998-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA | Abandonment or withdrawal |