| GAA |
Generic
Authentication Algorithm |
| GAN |
Generic
Access Network |
| Gb |
GPRS
interface between SGSN and GSM BSS |
| GB |
Gigabyte
also called gbit |
| Gbit/s |
Gigabytes
per second |
| Gbps |
Gigabit
per second |
| GBF |
Guranteed
Bit Rate |
| GBR |
Guaranteed
Bit Rate |
| GByte |
Gigabyte |
| GCF |
Global
Certification Forum |
| GDD |
Group
Delay Distorsion |
| GE |
Gigabit
Ethernet |
| GERAN |
GSM
EDGE Radio Access Network |
| GERAN |
GSM
Enhanced Radio Access Network |
| GF |
G-Factor |
| GG |
Golden
Gate |
| GGSN |
Gateway
GPRS Support Node |
| GHz |
Gigahertz |
| Gi |
Interface
between GGSN (GPRS) and external data network |
| GI |
Guard
Interval |
| GLONASS |
Global
Navigation Satellite System (Russian) |
| GMLC |
Gateway
Mobile Location Center / Controller |
| GMM |
GPRS
Mobility Management |
| GMSK |
Gaussian
Minimum Shift Keying |
| Gn |
Interface
between two GSN |
| GNSS |
Global
Navigation Satellite System |
| Gp |
Guard
Period |
| Gp |
Interface
between two GGSN |
| G-PDU |
GTP-U
non-signaling PDU |
| GPIB |
General
Purpose Interface Bus |
| GPON |
Gigabit
Passive Optical Network |
| GPP |
General
Purpose Processor |
| Gr |
Interface
between SGSN and HLR/AuC |
| GPRS |
General
Packet Radio Service / System |
| GPS |
Global
Positioning System |
| G-RAKE |
Generalized
Rake Receiver |
| GRE |
Generic
Routing Encapsulation |
| GRX |
GPRS
Roaming Exchange |
| Gs |
Interface
between SGSN and serving MSC/VLR |
| GSM |
Global
System for Mobile communications |
| GSMA |
GSM
Association |
| GSN |
GPRS
Support Node |
| GT |
Guard
Time |
| GTP |
GPRS
Tunneling Protocol |
| GTP-C |
GTP
- Control plane |
| GTP-U |
GTP
- User Plane (part of GTP used for transfer of user data) |
| GTPv2 |
GPRS
Tunneling Protocol version 2 |
| GTT |
Global
Text Telephony |
| GTT-CS |
Global
Text Telephony over video telephony |
| GTTP |
GPRS
Transparent Transport Protocol |
| GTT-Voice |
Global
Text Telephony over voice |
| GUI |
Graphical
User Interface |
| GUMMEI |
Globally
Unique MME Identity / Identifier |
| GUTI |
Globally
Unique Temporary UE Identity |
| GW |
Gateway |
| GWCN |
Gateway
Core Network |
| Gxa,
Gxb, Gxc |
IMS
reference points |
RadioCom
Valley
