3GPP SAE - 3G SAE - UMTS SAE (System Architecture Evolution)

3GPP SAE or 3G SAE SAE (System Architecture Evolution) is a 3GPP work item to develop a new core network architecture for UMTS that addresses cost-efficient deployment and operations for mass-market usage of IP services as well as improvements in integration of other access technologies in the network.

The main drivers for the network evolution are:

• to be able to meet the targets for the evolution of the radio-interface (LTE),
  • Symplified network architecture;
• to enable the evolution towards an All-IP Network
  • All services are packet switched, no circuit switching;
• to support mobility and service continuity between heterogeneous access networks.
  • 2G/3G, LTE, non 3GPP access systems (e.g. WiFi, WiMAX)

3G SAE is a framework for a higher-data-rate, lower-latency, packet-optimized system that supports multiple radio access technologies with a focus on packet-switching, including support of voice services (VoIP).