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1. WO2004105337 - REPETITION CODING IN A SATELLITE-BASED COMMUNICATIONS SYSTEM

Publication Number WO/2004/105337
Publication Date 02.12.2004
International Application No. PCT/US2004/013478
International Filing Date 30.04.2004
Chapter 2 Demand Filed 13.01.2005
IPC
H04L 1/08 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
08by repeating transmission, e.g. Verdan system
H04L 27/18 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
18Phase-modulated carrier systems, i.e. using phase-shift keying
CPC
H04B 7/18517
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
185Space-based or airborne stations; ; Stations for satellite systems
1851Systems using a satellite or space-based relay
18517Transmission equipment in earth stations
H04L 1/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
08by repeating transmission, e.g. Verdan system
H04L 27/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
18Phase-modulated carrier systems, i.e. using phase-shift keying
H04L 27/183
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
18Phase-modulated carrier systems, i.e. using phase-shift keying
183Multiresolution systems
H04L 27/3488
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
3488Multiresolution systems
Applicants
  • THOMSON LICENSING S.A. [FR]/[FR] (AllExceptUS)
  • KOSLOV, Joshua [US]/[US] (UsOnly)
Inventors
  • KOSLOV, Joshua
Agents
  • TRIPOLI, Joseph, S.
Priority Data
60/471,16616.05.2003US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) REPETITION CODING IN A SATELLITE-BASED COMMUNICATIONS SYSTEM
(FR) CODAGE PAR REPETITION DANS UN SYSTEME DE COMMUNICATIONS PAR SATELLITE
Abstract
(EN) A satellite communications system comprises a transmitter, a satellite transponder and a receiver. The transmitter transmits an uplink multi-level modulated signal (hierarchical modulation or layered modulation) to the satellite transponder, which broadcasts the multi-level modulated signal downlink to one, or more, receivers. The transmitter includes a repetition coder for repetition coding at least one level, e.g., a lower level, of the multi-level modulated signal. In complementary fashion, the receiver includes a repetition decoder for use in decoding the at least one repetition coded level of the received multi-level modulated signal.
(FR) L'invention porte sur un système de communications par satellite comprenant un émetteur, un répéteur de satellite et un récepteur. L'émetteur envoie un signal modulé muiltiniveau sens montant (modulation hiérarchique ou modulation hiérarchisée) au répéteur de satellite qui communique le signal modulé multiniveau sens descendant à un ou plusieurs récepteurs. L'émetteur comprend un codeur par répétition pour coder par répétition au moins un niveau, tel qu'un niveau inférieur, du signal modulé multiniveau. De manière complémentaire, le récepteur comprend un décodeur par répétition destiné à être utilisé dans le décodage d'au moins un niveau codé par répétition du signal modulé multiniveau.
Related patent documents
US2007025283This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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