Patent ID: 11916814
Assignee: SAGEMCOM ENERGY & TELECOM SAS
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The method according to claim 1, wherein the data interleaving operation comprises:
obtaining a first interleaving table T [m, n] of bits representative of the data to be transmitted, the first interleaving table comprising the same number of second interleaving tables Ti [mi, ni] of bits as there are separate frequency bands contained in the extended band, each second interleaving table Ti [mi, ni] being assigned to just one of the at least two separate frequency bands of the extended frequency band, the dimensions mi, ni of each of the second interleaving tables Ti [mi, ni] being defined in accordance with a modulation type used for the transmission of the data in the separate frequency band to which a second interleaving table is assigned, any differences in dimensions between second interleaving tables being liable to generate one or more positions that are said to be invalid, contained in the first interleaving table but not contained in at least one of the second interleaving tables,
interleaving the bits by successively shifting the rows m and columns n of the first interleaving table T [m, n], the successive shifts being performed in the form of circular permutations of the bits respectively by row and by column,
moving any bit detected as being present at an invalid position of the first interleaving table to a position of a said second interleaving table that is available following the interleaving of the bits of the first interleaving table, such that each second interleaving table comprises bits assigned to one of said groups of data,
directing the bits of each of the groups of data to electronic circuitry configured so as to modulate and transmit said bits.