EP 1232593 A1 20020821 - MULTICARRIER DIGITAL TRANSMISSION SYSTEM USING AN OQAM TRANSMULTIPLEXER
Title (en)
MULTICARRIER DIGITAL TRANSMISSION SYSTEM USING AN OQAM TRANSMULTIPLEXER
Title (de)
DIGITALES MEHRTRÄGER-NACHRICHTENÜBERTRAGUNGS-SYSTEM
Title (fr)
SYSTEME DE TRANSMISSION NUMERIQUE A PORTEUSE MULTIPLE METTANT EN OEUVRE UN TRANSMULTIPLEXEUR OQAM
Publication
Application
Priority
- FR 9914036 A 19991109
- US 0042048 W 20001109
Abstract (en)
[origin: WO0135561A1] An emitter converts a serial input data stream into a set of parallel substreams. An OQAM modulator (120) receives and supplies each substream to an input of a synthesis filter bank (130). Synchronization input(s) of the filter bank receive an OQAM signal that carries a data sequence. This sequence contains frame, superframe and hyperframe synchronization patterns, and specifies the number of bits allocated to each subchannel. A receiver (200) includes an analysis filter bank (210) that decomposes the multicarrier signal into a set of elementary signals for each subchannel. A synchronizing processing block (270) receives output(s) of the filter bank for synchronization subchannel(s). The block (270) includes a first cascade of blocks that control receiver sampling times, and a second cascade of blocks that extract synchronization patterns and subchannel bit assignment data. Other filter bank outputs are each coupled to a cascade subchannel equalizer (220) followed by a data extractor (230) and a parallel-to-serial converter (240).
IPC 1-7
IPC 8 full level
H04L 27/26 (2006.01); H04L 25/03 (2006.01)
CPC (source: EP US)
H04L 27/26416 (2021.01 - EP US); H04L 27/2654 (2021.01 - EP US); H04L 27/2656 (2013.01 - EP US); H04L 27/2697 (2013.01 - EP); H04L 2025/03414 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE GB IT LI
DOCDB simple family (publication)
WO 0135561 A1 20010517; EP 1232593 A1 20020821; EP 1232593 A4 20030122; FR 2800954 A1 20010511; FR 2800954 B1 20011228
DOCDB simple family (application)
US 0042048 W 20001109; EP 00989764 A 20001109; FR 9914036 A 19991109