Title:
SELF-SYNCHRONIZING EQUALIZATION TECHNIQUES AND SYSTEMS
Document Type and Number:
WIPO Patent Application WO1998044655
Kind Code:
A3
Abstract:
Methods and systems for processing received radio signals are described wherein the finite alphabet quality of digital transmissions is utilized to improve performance. Nonsynchronous sampling of received signals introduces intersymbol interference which is compensated for by these methods and systems. Different types of signal modulation, and their impact on this type of intersymbol interference are discussed. A robust diversity combining technique, usable in conjunction with antenna arrays is developed.
Inventors:
ANDERSSON SOEREN
PELIN PER
PELIN PER
Application Number:
PCT/SE1998/000518
Publication Date:
March 11, 1999
Filing Date:
March 20, 1998
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
International Classes:
H04B1/707; H04B1/7073; H04B1/7115; H04B7/005; H04L25/02; H04L25/03; H04B1/712; H04B7/04; (IPC1-7): H04B7/005; H04B1/707; H04L25/03
Domestic Patent References:
| WO1994018752A1 | 1994-08-18 |
Foreign References:
| EP0654925A1 | 1995-05-24 | |||
| EP0563020A2 | 1993-09-29 | |||
| EP0642243A1 | 1995-03-08 |
Other References:
LIU Q ET AL: "An adaptive maximum-likelihood sequence estimation receiver with dual diversity combining/selection", PIMRC '92. THE THIRD IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS (CAT. NO.92TH0488-7), PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, BOSTON, MA, USA, 1, ISBN 0-7803-0841-7, 1992, NEW YORK, NY, USA, IEEE, USA, pages 245 - 249, XP002039627
KHALAJ B H ET AL: "SPATIO-TEMPORAL CHANNEL ESTIMATION TECHNIQUES FOR MULTIPLE ACCESS SPREAD SPECTRUM SYSTEMS WITH ANTENNA ARRAYS", COMMUNICATIONS - GATEWAY TO GLOBALIZATION. PROCEEDINGS OF THE CONFERENCE ON COMMUNICATIONS, SEATTLE, JUNE 18 - 22, 1995, vol. 3, 18 June 1995 (1995-06-18), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 1520 - 1524, XP002045257
KHALAJ B H ET AL: "SPATIO-TEMPORAL CHANNEL ESTIMATION TECHNIQUES FOR MULTIPLE ACCESS SPREAD SPECTRUM SYSTEMS WITH ANTENNA ARRAYS", COMMUNICATIONS - GATEWAY TO GLOBALIZATION. PROCEEDINGS OF THE CONFERENCE ON COMMUNICATIONS, SEATTLE, JUNE 18 - 22, 1995, vol. 3, 18 June 1995 (1995-06-18), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 1520 - 1524, XP002045257
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