Price is for 4 days
Duration
4 days
Objectives
On completion of this course, the participant will:
Define the key components of the LTE-EPC network
Specify roles of various EPC components
Appreciate the purpose of PCC functionality in IMS/LTE networks Understand how voice services can be delivered in LTE networks (CSFB
and VoLTE)
Appreciate how IMS and LTE-EPC are connected
Summarize key benefits and challenges of the EPC Describe a high-level session setup using the EPC Discuss how EPC supports inter-technology handover
Suitable for
Professionals in the telecom and datacom business who need technical details on LTE-EPC design. This includes those in a design, test, systems engineering, sales engineering & network engineering.
Prerequites
Mobile or fixed telecom or datacom background is required. GSM and UMTS network architecture & core knowledge.
Contents
1. Introduction to LTE EPC
Overall cellular system architecture Motivation for the EPC
Influence of IP convergence
EPC as part of EPS
Role of IMS
Services (VoIP, Web-browsing, and video streaming) in EPC
EPC Architecture
Core network requirements
Pooling of MME and S-GW
Legacy core networks
Elements of the EPC (HSS, MME, S-GW, and P-GW) and interfaces
2. Major Functions of the EPC
Authentication and security
Policy charging and control and QoS Packet routing
Mobility management
IP address allocation
LTE-EPC network planning
3. Network planning process
User/Traffic profile
Subscriber traffic demand
Node and link capacity modelling
4. LTE-EPC design process
LTE network architecture: nodes and interfaces
LTE interworking with UMTS
Control-plane user/traffic profile: Network attach, Default bearer establishment, Mobility events, State transition events, and Tracking area updating events
Service-plane user/traffic profile: VoIP and other packet services, CSFB
The effect of control/user plane traffic separation on LTE-EPC dimensioning
User/Traffic profile: signalling events, traffic volume demand
MME pools and selection
Tracking are planning
Design guideline and checklist
LTE Signaling Capacity Planning
Transport technology options Triggers for establishing a bearer
Idle <- -> Connected mode transitions
Signaling and data capacity planning for S1, S5, S6a, S10, S11, and Gx
Signaling for iRAT
Network topology
Node Capacity
Signalling capacity exercises
Session Setup using EPC
Overall call flow
Interaction between the E-UTRAN and EPC
Default IP Connectivity in EPC
Engineering requirements Default APN connectivity options QoS rules determination
4. Dedicated Bearer and QoS in EPC
Transport technology options Dedicated bearer setup operation Service flow and QoS management
Mobility and Roaming in EPC
Transport technology options Tracking area planning Signaling for S1 handovers Inter-RAT mobility
Role of GRX/IPX in EPC roaming
Mobility and roaming dimensioning exercises
Seamless Inter-technology Handover via EPC
EPC architecture for seamless mobility
EPC features in support of mobility Handover scenarios (LTE-UMTS, LTE-GSM) Inter-system handover exercises
5. CSFB
CSFB architecture overview
CSFB options to UMTS
CSFB Voice Call MO and MT Signalling
Difference between CSFB-CSFB calls versus CSFB – IMS
Improving CSFB performance through MSC pooling architectures
MT Roaming Forwarding (MTRF) as the newest version of MT Roaming Retry (MTRR) to speed up calls at MSC borders
IMS basics
IMS architecture
Nodes (P-CSCF, S-CSCF, I-CSCF, application servers etc) & interfaces
Policy Charging & Control: PCRF & PCEF functionality
Connectivity between IMS and LTE-EPC layers
End-to-End VoIP call
Dedicated bearer establishment
Policy and Charging Control (PCC)
IMS and PCC planning and dimensioning exercises
LTE-EPC network design case study covering all discussed topics
