EPC Signalling
- Category:
- Cellular telecoms 4G/LTE
- Training method:
- Open / Scheduled
- Length:
- 3 days
- Guide price:
- Euros 2,410 (excl. VAT)
- Location:
- Various
Course overview:
The course describes the Evolved Packet Core network (EPC) introduced in 3GPP Release 8 and 9. The course focuses on the network architecture, logical functions (nodes), signalling protocols and signalling flows for EPC with E-UTRAN access.
Mechanisms and procedures for Security and access network selection are described. The course also accounts interworking with legacy 3GPP (UTRAN/GERAN) and non-3GPP networks. The 3GPP defined Policy and Charging Control (PCC) architecture for the Evolved Packet System (EPS) is described.
Pre-requisites:
General knowledge about the architecture, terminology and modes of operation of the GSM/UMTS Packet Switched Core Network is highly recommended. Basic knowledge of the Internet Protocol (IP) family is useful. For required background IP knowledge, the Apis course TCP/IP in Mobile Networks (or equivalent) is recommended.
Course contents:
EPC Introduction
• An overview of the 3GPP Core Network evolution
• New network nodes and interfaces introduced for the Evolved UTRAN and Evolved Packet Core
• Basic Concepts: EPS Bearers, PDN Connections, Quality of Service etc
NAS (Non Access Stratum) Protocols – EMM and ESM
• EPS Mobility Management (EMM) Procedures
• ESM Session Management (ESM) Procedures
S1AP – the S1 Application Protocol
• The S1 Interface
• Main S1AP procedures
Mobility in EPS
• Pool concept for MME and SGW
• Idle mode mobility scenarios
• Connected mode mobility scenarios
• Context storage in EPS nodes
GTP – the GPRS Tunnelling Protocol
• GTP-C and GTP-U
• Main GTP Procedures in EPS
DIAMETER
• General about Diameter
• Main Diameter procedures in EPS
EPS Security Mechanisms
• EPS Authentication and Key Agreement
• User to Network security mechanisms
• EPS usage of IPsec
• Network Domain Security mechanisms
Multimedia over IP and IMS Basics
• Basic SIP (Session Initiation Protocol) concepts
• Control plane: SIP and SDP
• User plane: RTP and RTCP
• The IMS Architecture
• Basic signalling flows: Registration and Session Initiation
Interworking with 3GPP IP-access
• Mobility principles between E-UTRAN and GERAN/UTRAN
• Selected traffic cases with interworking between E-UTRAN and GERAN/UTRAN
• CS Domain interworking – Voice Call Continuity and CS Fallback
Interworking with Non-3GPP IP-access
• Trusted and non-trusted non-3GPP access networks
• Mobility Mechanisms using Mobile IP
• Selected signalling flows
PCC – Policy and Charging Control
• Purpose of Policy and Charging Control
• The PCC architecture
• The PCRF and PCEF
• AF and SPR
• PCC Rules
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