The GPRS Tunneling Protocol (GTP) software
from Aricent
enables communication between GPRS
Support Nodes in a GPRS network (both GSM Phase 2+ and
UMTS). GTP is defined for the Gn interface, i.e. the
interface between GSNs within a PLMN, and for the Gp
interface between the GSNs in different PLMNs. In addition,
the GTP software at the SGSN, provides the user data
transmission on the IuPS interface.
GGSN
GTP Interfaces
SGSN
GTP Interfaces
GTP STACK OFFERINGS
GPRS Tunneling Protocol (GTP) software
enables GPRS Support Nodes in a GPRS network (both GSM
Phase 2+ and 3G) to communicate with each other.
Aricent provides protocol stack software packages
for GTP-C/U on SGSN and GGSN, GTP-U on RNC and for GTP'
on GSN and Charging Gateway. The GTP-C module is for
signaling while the GTP-U is for user data transport.
GTP' is used to transfer the Call Data Records (CDRs)
from SGSN/GGSN to the Charging Gateway.
GTP Offerings
The Aricent's GTP stack is available for SGSN,
GGSN and CGF. Separate packages are available for
3G GGSN GTP-C/U with backward compatibility
to 2.5G across Gn and Gp interface
2.5G SGSN GTP-C/U across Gn and Gp
interface
3G SGSN GTP-C/U with backward compatibility
for 2.5G across Gn and Gp interface
GTP' for SGSN/GGSN across Ga interface
GTP' for Charging Gateway Functionality
(CGF) across Ga interface
GTP-U for RNC across Iu-PS Interface
GGSN
Aricent has GTP-C/U and GTP' available for
the GGSN. The GTP Stack on GGSN is complaint to Release-99
(GTPv1) and is backward compatible with Release-98 (GTPv0)
version of the 3GPP technical specifications
It provides well defined APIs for GTP-C
users in GGSN as
MAP - for location management information
DHCP and RADIUS client - to obtain
dynamic addresses
Packet Data Network Application Entity
- to supply raw IP packets to the GTP-U entity at
GGSN
Charging Agent - for collection of
CDRs
Administrative Function - Support
for Lawful interception of Intercept Related Information
(IRI) and Content of Communication (CC)
UDP/IP - for tunnel messages
System Management Entity (which
is responsible for)
