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1. (WO2018122369) METHOD FOR PROTECTION OF SIGNAL BLOCKAGES IN A SATELLITE MOBILE BROADCAST SYSTEM

Pub. No.:    WO/2018/122369    International Application No.:    PCT/EP2017/084802
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 30 00:59:59 CET 2017
IPC: H04B 7/185
H03M 13/03
H03M 13/29
H04L 1/00
H03M 13/27
H04H 20/74
Applicants: EUTELSAT S A
EBERLEIN, Ernst
ARCIDIACONO, Antonio
FINOCCHIARO, Daniele Vito
Inventors: EBERLEIN, Ernst
ARCIDIACONO, Antonio
FINOCCHIARO, Daniele Vito
Title: METHOD FOR PROTECTION OF SIGNAL BLOCKAGES IN A SATELLITE MOBILE BROADCAST SYSTEM
Abstract:
The method of generating interleaved symbols in a multiplexed data steam for a satellite broadcasting application to a plurality of receivers, comprises : - allocating a plurality of data programs (Pij) to a plurality of primary multiplexers (MUXi) according to a load balancing scheme; - encoding in each primary multiplexer (MXi) a plurality of data programs (Pij) according to a coding scheme at a predefined code rate for generating encoded frames (FECF); - generating super frames (SF) in each primary multiplexer (MXi) by : - performing symbols generation by applying a symbol mapping function to the previous encoded frames (FECF); - time interleaving symbols according to a convolutional interleaving scheme by: - dispersing a predefined number of symbols by considering blocks of symbols (CU), called capacity unit, into a sliding time window, the length of the time window being defined by a interleaver length; - generating at least a header for each super frame (SF) comprising at least an identifier, a synchronization indicator and the interleaving scheme; - organizing payload of the super frame (SF) by considering a predefined set of interleaved symbols; - multiplexing a set of super frames (SF) issued from a plurality of primary multiplexers (MXi) into a carrier signal.