Analyzing the EPC
Topic areas covered include:
- What is the EPC?
- Market Drivers for EPC.
- Defining EPC and LTE - 3GPP Standardization.
- Positioning EPC within LTE:
- E-UTRA, E-UTRAN and EPC.
- LTE Principles of Operation.
Topic areas covered include:
- EPC Functional Architecture:
- MME, S-GW, PDN-GW, PCC, HSS and AAA.
- EPC Interfaces:
- E-UTRAN and EPC Interfaces.
- Interaction with GPRS.
- EPC Interacting with Trusted and Untrusted Non 3GPP Access.
- EPC Interfaces for Roaming.
- S1-MME, S1-U, S2a, S2b, S3, S4, S5, S6a, S8, S10, S11, Gx, Rx.
- LTE Protocols:
- S1AP - functions and procedures.
- GTP - GTPv1-U header and procedures, GTPv2-C message format.
- Diameter - Base Protocol, AVPs and Routing.
- DECOR.
- CUPS.
Topic areas covered include:
- Carrier Grade IP Transport:
- IP Overview, Routing and IPv6.
- Multi Protocol Label Switching:
- Overview, Architecture, Label Format, Traffic Engineering, FRR, PWE3.
- Carrier Ethernet:
- CE in LTE, CE Layered Model, CE Transport.
- Timing and Synchronization:
- Timing over Packet Options, PTP, SyncE.
Topic areas covered include:
- Transferring Signalling in the E-UTRAN and EPC:
- LTE Stratums and NAS Messages.
- LTE States:
- EMM and ECM.
- LTE Identities:
- UE Identities, eNB Identities and EPC Identities.
- IMSI, GUTI, eNB ID, GUMMEI, S-TMSI.
- Detailed Registration Process.
- Deregistration.
- Activity: detailed analysis of the Registration procedure using Mpirical’s NetX.
Topic areas covered include:
- EPS Authentication and Key Agreement:
- AKA Principles, AKA in the Attach, AIR and AIA, NAS Authentication Request.
- EEA and EIA – Null, SNOW, AES, ZUC.
- RAND, AUTN, XRES, KASME.
- Key Distribution and Security Contexts:
- LTE Key Architecture, Security Context Initiation, S1-MME and S1-U Security.
- IPSec and IKEv2:
- AH and ESP, SPD, SAD, SPI and SA Establishment with IKEv2.
- Transport Layer Security:
- TLS Operation, Handshaking, Cipher Suites, PKI and X.509.
- Activity: detailed analysis of security elements of the Registration procedure using Mpirical’s NetX.
Topic areas covered include:
- Supporting QoS - Significant Protocols:
- SCTP and DiffServ.
- Policy and Charging Control:
- PCC Architecture, Principles, PCC and EPC.
- PCC Binding Mechanism:
- Session Binding, Rule Authorization, Bearer Binding.
- EPC Charging Architecture:
- CTF, CGF, OCS, OFCS, GTP’, Diameter Charging Interfaces.
- Activity: detailed analysis of Diameter based PCC procedures using Mpirical’s NetX.
Topic areas covered include:
- Dedicated EPS Bearers:
- TFTs and QCI.
- Dedicated Bearer Establishment:
- Network and UE Initiated Procedures.
- Utilizing EPS Bearers:
- UE Triggered Service Request, Paging.
- Bearer Resource Modification Procedures.
- EPS Bearer Deactivation.
- Activity: detailed analysis of Network Initiated Dedicated Bearer Establishment and Modification procedures using Mpirical’s NetX.
Topic areas covered include:
- Tracking Area Update Detailed Analysis.
- Handover Procedure.
- EPC Relocation Procedures:
- MME and S-GW Relocation, S1 Based Handover.
- LTE Roaming Considerations:
- Roaming Scenarios, IPX Architecture, DRA, IPX Proxy and Diameter Routing.
- Activity: detailed analysis of TAU and Handover procedures using Mpirical NetX.
Topic areas covered include:
- Supporting CSFB - Network Considerations:
- UE, MME, MSC-S, SGs, SGsAP, S3 (Packet Data).
- CSFB Preparation Phase.
- CSFB MO Call:
- Key Stages, Handover and Redirection, SIB Skipping/Tunnelling.
- CSFB MT Call.
- Handover vs Redirection.
- Other CSFB Procedures:
- MO/MT SMS, Packet Switched Handover, Network Detach.
Topic areas covered include:
- Interworking Concepts and Architecture.
- Registration and Bearer Establishment:
- Establishing the PDP Context and EPS Bearer, Secondary PDP Contexts.
- E-UTRAN to GERAN/UTRAN RAU.
- E-UTRAN to GERAN/UTRAN Handover:
- Preparation and Execution.
Topic areas covered include:
- IMS Concepts.
- IMS Architecture:
- P-CSCF, S-CSCF and I-CSCF, HSS, Application Servers, PSTN Breakout and Interworking.
- SIP Basics:
- Protocol Architecture, Methods, Registration and Session Establishment.
- IMS Registration and Session Establishment.
Topic areas covered include:
- VoLTE Fundamentals:
- GSMA IR.92, Registration, MO and MT Call, SMS.
- SRVCC Fundamentals.
- Architecture and E-UTRAN to GERAN Procedure.
- OTT Services:
- Voice and Video Services.