GPRS核心网 - 常见缩略语和接口

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.