缩略语
APN Access Point Name
CDR Call Detail Record
CS Circuit Switched
EPS Evolved Packet System
E-UTRAN Evolved UTRAN
GERAN GSM EDGE Radio Access Network
GGSN Gateway GPRS Support Node
GMM/SM GPRS Mobility Management and Session Management
GSN GPRS Support Node
GTP GPRS Tunnelling Protocol
GTPC GTP Control Plane
GTPU GTP User Plane
NSAPI Network layer Service Access Point Identifier
P-TMSI Packet TMSI
PCRF Policy and Charging Rules Function
PDCP Packet Data Convergence Protocol
PDN GW Packet Data Network Gateway
PDP Packet Data Protocol, e.g. IP
PDU Protocol Data Unit
PGW PDN Gateway
PMM Packet Mobility Management
RA Routeing Area
RAB Radio Access Bearer
RAC Routeing Area Code
RAI Routeing Area Identity
SGSN Serving GPRS Support Node
SGW Serving Gateway
TEID Tunnel Endpoint IDentifier
接口
Ga Charging data collection interface between a CDR transmitting unit (e.g. an SGSN, SGW, PDN GW or a GGSN) and a CDR receiving functionality (a CGF).
Gb Interface between an SGSN and a BSS.
Gi Reference point between a GGSN and a packet data network.
Gn Interface between two SGSNs within the same or different PLMNs or between an SGSN and a GGSN within the same PLMN.
Gp Interface between a SGSN and a PGW/GGSN in different PLMNs. The Gp interface allows support of GPRS network services across areas served by the co-operating GPRS PLMNs.
Iu Interface between the RNS and the core network. It is also considered as a reference point.