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