software4ppc

FACCH
Fast Associated Control Channel; similar to the SDCCH but used in parallel for operation of the TCH. If the data rate of the SACCH is insufficient borrowing mode is used

FB
Frequency Correction Burst; used for frequency synchronisation of the mobile

FCC
Federal Communications Commission; the US regulatory body for telecommunications

FCCH
Frequency Correction Channel; downlink only, correction of MS frequencies, transmission of frequency standard to MS etc.

FDD
Frequency Division Duplex; a radio technique which uses paired spectrum; UMTS has an FDD element

FDMA
Frequency Division Multiple Access-a transmission technique where the assigned frequency band for a network is divided into sub-bands which are allocated to a subscriber for the duration of their calls

FEC
Forward Error Correction

FH
Frequency Hopping

FH-CDMA
Frequency Hopping CDMA

FMC
Fixed Mobile Convergence

FMI
Fixed Mobile Integration

FPLMTS
Future Public Land Mobile Telecommunications System, the original title of the ITU’s third generation concept now known as IMT-2000

FRA
Fixed Radio Access; see WLL

FSDPSK
Filtered Symmetric Differential Phase Shift Keying

FSK
Frequency Shift Keying; a method of using frequency modulation to send digital information

FSOQ
Frequency Shift Offset Quadrature Modulation

FSS
Fixed Satellite Ser

FCC
Federal Communications Commission; the US regulatory body for telecommunications

FDMA
Frequency Division Multiple Access-a transmission technique where the assigned frequency band for a network is divided into sub-bands which are allocated to a subscriber for the duration of their calls

FH-CDMA
Frequency Hopping CDMA

FPLMTS
Future Public Land Mobile Telecommunications System, the original title of the ITU’s third generation concept now known as IMT-2000

FSK
Frequency Shift Keying; a method of using frequency modulation to send digital information

FSS
Fixed Satellite ServiceGb
The interface between the PCU and the SGSN in a GSM/GPRS network