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
H04L5/003
Arrangements for allocating sub-channels of the transmission path
H04L5/0053
Allocation of signaling, i.e. of overhead other than pilot signals