Training Solutions

LTE-EPC Networks and IMS *NEW*

The LTE Evolved Packet Core (EPC) is an evolution of the 3GPP system architecture with the vision of an all-IP network finally realized. EPC in conjunction with IP Multimedia Subsystem (IMS) delivers various services such as VoIP, SMS, Video call, Picture share, IM, Presence. EPC and IMS support mobility with the existing 2G/3G wireless networks as well as PSTN to facilitate smooth migration, interworking, and service continuity across these networks. This course provides a detailed look at the architecture of the LTE EPC, IMS, and QoS framework to deliver end-to-end voice and data services in a 4G networks. In also covers various service scenario walk-throughs that utilizes IMS and EPC network components. The IMS service architecture including ICS and their interaction with existing service architecture is described.

Learning Objectives

After completing this course, the student will be able to:
• Describe IP convergence and its relation with LTE and IMS
• Sketch the EPC architecture and describe the components that make up the EPC as well as related interfaces
• Sketch the IMS network architecture and identify the role of key components as well as interfaces
• Step through the key IMS scenarios of IMS registration and VoIP call
• Describe the IMS services architecture and role of ICS, RCS, VCC, application servers, etc.
• Describe the interworking of IMS with existing services based on WIN/CAMEL
• Step through the interworking of IMS with non-IMS networks such as PSTN
• Explain the role of the PCC network to deliver QoS
• Step through a call scenario using LTE-EPC and IMS framework

Intended Audience

This course is designed for those involved in deployment and engineering of next generation wireless networks and services based on LTE-EPC and IMS.

Suggested Prerequisites

• LTE SAE Evolved Packet Core (EPC) Overview (eLearning)
• Overview of IMS (eLearning)

Course Length

2 Days Instructor Led

Course Outlines / Knowledge Knuggets

1. Setting the Stage
1.1. IP convergence
1.2. Key components of IP evolution
2. LTE-EPC Network Architecture
2.1. LTE-EPC network architecture
2.2. Network nodes and roles of HSS, MME, S-GW, P-GW, and PCRF
2.3. Key interfaces: S1, S5, S6, S10 and S11
2.4. Diameter and related interfaces
2.5. Role of IPv6 in LTE-EPC
2.6. Key features and services
3. IMS Architecture
3.1. IMS network architecture
3.2. Role of CSCF, MGCF, MGW, HSS, AS
3.3. Interfaces and related protocols
3.4. Signaling protocols – SIP, SDP
3.5. Role of RTP and RTCP
3.6. Addressing in IMS
4. IMS Scenarios
4.1. IMS registration
4.2. VoIP call setup in IMS
4.3. Voice over LTE (VoLTE)
4.4. Support for SMS/MMS
5. IMS Service Building Blocks
5.1. Service architecture and role of AS
5.2. Support for legacy services
5.3. Supplementary services in IMS
5.4. Role of RCS

6. Mobility Support in IMS
6.1. IMS Centralized Services (ICS)
6.2. Voice Call Continuity (VCC)
6.3. CS Fall Back (CSFB) and SR-VCC
7. Interworking in IMS
7.1. Interworking between IMS and PSTN
7.2. Roaming in IMS
7.3. Role of IPX
8. QoS Framework in LTE-EPC
8.1. PCC architecture
8.2. Network nodes: PCRF, PCEF, 3GPP AAA
8.3. Interfaces: Gx, Rx, Sp
8.4. SDF, SDF aggregation, TFT, QoS
8.5. DL and UL traffic flow templates

Appendix: End-to-End Call Scenario in LTE/IMS
- Initial attach procedure
- MME, S-GW and P-GW selection
- Default and dedicated bearers
- PDN connections and role of APNs
- VoIP call using LTE-EPC and IMS

CATALOG

Download our course catalog!

2010 Catalog,
pdf format (7.8 MB)