Author(s):
Suresh Krishnan, Laurent Marchand, Gunnar Nilsson Cassel

CTIA, 2008

Download document:
An IETF-based Evolved Packet System beyond the 3GPP Release 8 (pdf)

Abstract:
3GPP is working on the new SAE Evolved Packet System (EPS) for Release 8 (R8), scheduled for completion in 2008. The target is a low-latency, higher data-rate, all-IP core network capable to support real-time packet services over multiple access technologies.

Two network architecture solutions are defined

• GTP-based solution (i.e., 3GPP TS 23.401)
•  PMIP-based solution (i.e., 3GPP TS 23.402)

It is expected that a number of operators will deploy the first solution for various considerations while others will go for the second solution due to other reasons. Both solutions will be supported by the industry. This paper is strictly focusing on the IETF/PMIP-based network solution – while the further evolution of the GTP-based solution is by purpose left outside the scope of the paper.

The EPS R8 represents a major step forward towards the realization of the 3GPP objectives and vision. However due to time constraints, it may still leave room for improvements in future releases.

The purpose of this paper is to introduce a possible mobility architecture which goes beyond the current R8 architecture. It is also describing the key drivers for such an evolution.

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