H
ELECTRICITY
H
ELECTRICITY
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27/00
Modulated-carrier systems
27/00
Modulated-carrier systems
H04L27/26
Systems using multi-frequency codes
H04L27/26
Systems using multi-frequency codes
H04L27/2601
Multicarrier modulation systems
H04L27/2601
Multicarrier modulation systems
H04L27/2602
Signal structure
H04L27/2602
Signal structure
H04L27/26035
Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
H04L27/26035
Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences