09.613GPPGeneral Packet Radio Service (GPRS)Interworking between the Public Land Mobile Network (PLMN) supporting GPRS and Packet Data Networks (PDN)TS
For the purposes of the present document, the terms and definitions given in 3GPP TS 02.60  apply.
Terminology used in the present document is presented in 3GPP TS 01.04 . For support of data services between GSM PLMN and other networks see 3GPP TS 09-series of specifications.
For the purposes of the present document, the following abbreviations apply:
APN Access Point Name
ATM Asynchronous Transfer Mode
BG Border Gateway
CHAP Challenge Handshake Authentication Protocol
DHCP Dynamic Host Configuration Protocol
DNIC Data Network Identification Code
DNS Domain Name Server
GGSN Gateway GPRS Support Node
ICMP Internet Control Message Protocol
IETF Internet Engineering Task Force
IP Internet Protocol
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISP Internet Service Provider
LAPB Link Access Protocol Balanced
MS Mobile Station
MT Mobile Terminal
PDN Packet Data Network
PDU Protocol Data Unit
PNIC Pseudo Network Identification Code
PSDN Packet Switched Data Network
RADIUS Remote Authentication Dial In User Service
SGSN Serving GPRS Support Node
SMDS Switched Multimegabit Data Service
TCP Transmission Control Protocol
TE Terminal Equipment
UDP User Datagram Protocol
For the purposes of the present document, the following symbols apply:
Gb Interface between an SGSN and a BSC.
Gi Reference point between GPRS and an external packet data network.
Gn Interface between two GSNs within the same PLMN.
Gp Interface between two GSNs in different PLMNs. The Gp interface allows support of GPRS network services across areas served by the co-operating GPRS PLMNs.
Gs Interface between an SGSN and MSC.
R The reference point between a non-ISDN compatible TE and MT. Typically this reference point supports a standard serial interface.
Um The interface between the MS and the GPRS fixed network part. The Um interface is the GPRS network interface for providing packet data services over the radio to the MS. The MT part of the MS is used to access the GPRS services through this interface.