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system architecture evolution (4G, LTE) (SAE)

System Architecture Evolution(SAE) is a framework for the evolution and migration of3GPP mobile networks such as Long Term Evolution( LTE). The main components of the SAE core network, System Architecture Evolution (SAE), are formed by the Evolved Packet Core( EPC), the access network by Evolved UTRAN( E-UTRAN).

In SAE architecture, Session Initiation Protocol( SIP) is used for session establishment and voice transmissions are performed through IPMultimedia Subsystem( IMS). SAE evolution has low latency and high throughput, and is also designed to simplify the core network structure, optimize IP traffic and services, simplify handover with non- 3GPP networks, and more flexibly adapt existing and new access technologies. The SAE architecture is an all-IP architecture with traffic between the Control Plane( CP) and the User Plane( UP).

Evolved Packet Core (EPC) architecture

Evolved Packet Core (EPC) architecture

As it became apparent that mobile networks were evolving towards all-IP networks and that connectivity to 3GPP networks was not only via UMTS Terrestrial Radio Access Network (UTRAN), but also via Wireless Fidelity(WiFi), WiMAX and wireline technologies, the development of System Architecture Evolution was driven. SAE evolution supports mobility between heterogeneous access networks, including to UTRA, which is the air interface for Long Term Evolution (LTE) and Long Term Evolution Advanced(LTE-A), to GERAN and UTRAN as interfaces toGPRS and UMTS, but also to mobile radio systems not standardized by 3GPP such as WiMAX or CDMA2000.

Informations:
Englisch: system architecture evolution (4G, LTE) - SAE
Updated at: 21.09.2014
#Words: 226
Links: society of automotive engineers (SAE), framework, migration, line terminating equipment (ATM) (LTE), core network (CN)
Translations: DE
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