H
ELECTRICITY
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L5/00
Arrangements affording multiple use of the transmission path
H04L5/0001
Arrangements for dividing the transmission path
H04L5/0003
Two-dimensional division
H04L5/0005
Time-frequency
H04L5/0007
the frequencies being orthogonal, e.g. OFDM(A), DMT
H04L5/001
the frequencies being arranged in component carriers