EP 1864460 A1 20071212 - METHOD FOR ALLOCATING SUBBANDS TO STREAMS OF A MULTICHANNEL LINK IN A MULTICARRIER MODULATION COMMUNICATION SYSTEM
Title (en)
METHOD FOR ALLOCATING SUBBANDS TO STREAMS OF A MULTICHANNEL LINK IN A MULTICARRIER MODULATION COMMUNICATION SYSTEM
Title (de)
VERFAHREN ZUM VERGEBEN VON SUBBÄNDERN AN STRÖME EINER MEHRKANALIGEN VERBINDUNG IN EINEM MEHRTRÄGERMODULATIONS-KOMMUNIKATIONSSYSTEM
Title (fr)
PROCEDE D'ALLOCATION DE SOUS-BANDES AUX FLUX D'UNE LIAISON MULTICANAL DANS UN SYSTEME DE COMMUNICATION A MODULATION MULTIPORTEUSE
Publication
Application
Priority
- FR 2006050245 W 20060321
- FR 0502857 A 20050323
Abstract (en)
[origin: WO2006100408A1] The invention concerns a method for allocating a plurality of subbands (SB<SUB>i</SUB>) to a plurality of streams (FL<SUB>j</SUB>) of a multichannel link in a multicarrier modulation communication system, each stream (FL<SUB>j</SUB>) being successively defined in a communication frame of said multichannel link by a number M<SUB>j</SUB> of bits to be transmitted and a noise margin G<SUB>j</SUB>. The invention is characterized in that said method includes the following steps: a) associating with each subband (SB<SUB>i</SUB>) a normalized signal to noise ratio (SNR<SUB>0</SUB>)<SUB>i</SUB> on the multichannel link; b) classifying the subbands (SB<SUB>i</SUB>) in a specific sequence of the normalized signal to noise ratios (SNR<SUB>0</SUB>)<SUB>i; </SUB>c) determining by means of a binary allocation algorithm an energy E<SUB>i</SUB> per subband (SB<SUB>i</SUB>); d) allocating for each stream (FL<SUB>j</SUB>) taken in the sequence of said frame, a number N<SUB>j</SUB> of consecutive subbands (SB<SUB>i</SUB>) taken in the sequence of normalized signal to noise ratios, so that the sum of the numbers n<SUB>ij</SUB> of bits in each subband (SB<SUB>i</SUB>) allocated to each stream (FL<SUB>j</SUB>), the number of bits n<SUB>ij</SUB> being defined by: n<SUB>ij</SUB> = log<SUB>2</SUB>(1+E<SUB>i</SUB>,(SNR<SUB>0</SUB>)<SUB>i</SUB>/G<SUB>j</SUB>), is equal to formula (I). The invention is applicable to multicarrier modulation multichannel links.
IPC 8 full level
H04L 27/26 (2006.01)
CPC (source: EP US)
H04L 5/0044 (2013.01 - EP US); H04L 1/0003 (2013.01 - EP US)
Citation (search report)
See references of WO 2006100408A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006100408 A1 20060928; CN 101180847 A 20080514; CN 101180847 B 20111109; EP 1864460 A1 20071212; FR 2883681 A1 20060929; US 2009052383 A1 20090226; US 7864728 B2 20110104
DOCDB simple family (application)
FR 2006050245 W 20060321; CN 200680017456 A 20060321; EP 06726264 A 20060321; FR 0502857 A 20050323; US 88709106 A 20060321