LTE Interworking (2 days or 12 hours)
While LTE introduces a flat all IP based radio access solution, one of the principle aims of LTE is to ensure that interworking with 2G / 3G systems such as GSM and UMTS are as seamless as possible. What is more, the importance of wireless services, such as WiMAX, has also been considered in the development of LTE. This course examines in detail the LTE interworking architecture and signalling interaction to facilitate interworking with 3GPP networks such as GSM and UMTS as well as non 3GPP access through services based on CDMA2000 and WiMAX. Those attending should have a good understanding of LTE as would be gained through attending mpirical’s LTE System Engineering course..
Who Should Attend
Network Engineers, Network Architects and Managers who are responsible for the integration of LTE into today’s mobile networks.
Course Outline
Divided into 8 sections, the topics covered will include:
Section 1: Network Infrastructure to Support Interworking (1 hour)
- The 3GPP pre Release 8 network, GSM, GPRS and 3G architecture overview.
- Non 3G networks, WiMAX and CDMA2000 architecture overview.
- LTE and the EPC concepts, aims and architecture.
- Linking the networks together, the interworking functional elements, MME, S-GW, SGSN, PDN Gateway, HSS, PCRF and ePDG.
- Interfaces between the EPC and pre Release 8 3GPP networks, the S interfaces. Interworking with non 3GPP networks, the SW interfaces, the Gn, Gr and Gp interfaces.
Section 2: Facilitating Interworking (1 hour)
- Interworking scenarios, roaming and non-roaming, trusted and non-trusted.
- Network Identities, LTE Identities, GPRS Identities, CDMA2000 and WiMAX Identities.
- Mobility protocols, S2 AP, GTPv1 and GTPv2, PPP and GRE.
- Security, Authentication, AAA architecture and processes.
Section 3: LTE Initial Procedures (2 hours)
- LTE terminal devices, multi-RAT options and considerations..
- LTE initial procedures, power on, cell search, location of downlink synchronization signals, Primary Synchronization Signal and Secondary Synchronization Signal, Broadcast Information and scheduling.
- PLMN selection and Initial Cell Selection algorithms, Cell Reselection algorithms.
- Random Access, RRC Connection process, Initial Attach, establishing the Dedicated Bearer.
- Radio Link Monitoring, Paging, Power Control, Downlink Power Control, Uplink Power Control.
Section 4: Interworking in Idle Mode - 3GPP based (1.5 hours)
- Interworking considerations, network discovery and selection, network identities, IP Address allocation and authentication.
- Tracking Area Update and triggers for tracking area update.
- Routing Area Updates and triggers, moving between E-UTRAN and GERAN in Idle Mode.
- Identity and context reallocation procedures and RAN Information Management.
Section 5: Interworking in Idle Mode - Non 3GPP Based (2 hours)
- Interworking between E-UTRAN and CDMA2000 considerations and the concepts for Interworking between 3GPP accesses and WiMAX.
- Network Discovery and selection, the ANDSF (Access Network Discovery and Selection Function).
- Authentication and security, EAP-SIM and EAP TLS, key generation in non-3GPP Access and Tunnel Authentication.
- IP Address allocation in trusted non-3GPP and un-trusted non-3GPP IP Access, concepts of PMIPv4 and PMIPv6, MIP security considerations.
Section 6: Interworking in Connected Mode - 3GPP Based (2 hours)
- Session Management and Call Management issues, QoS interaction and mapping.
- Handovers, measurements, criteria, triggers and actions.
- Inter RAT handovers, E-UTRAN to UTRAN Iu mode Inter RAT handover, UTRAN Iu mode to E-UTRAN Inter RAT handover, E-UTRAN to GERAN A / Gb mode Inter RAT handover and GERAN A / Gb mode to E-UTRAN Inter RAT handover.
- Network Assisted Cell Change, Charging and MBMS services.
Section 7: Interworking in Connected Mode - Non 3GPP Based (1.5 hours)
- QoS Concepts in non 3GPP networks and charging for non-3GPP Accesses.
- Handovers without optimizations between 3GPP Access and non-3GPP IP Access, PMIPv6 on the S2a and S2b interfaces.
- Handovers between trusted or un-trusted non-3GPP IP Access with PMIPv6 on S2a/S2b to 3GPP.
- Handovers with DSMIPv6, concepts, operation and security considerations.
Section 8: Service Continuity (1 hour)
- Circuit switched services and CS fallback.
- IMS architecture overview and operation.
- Delivering services over the IMS and SRVCC (Single Radio Voice Call Continuity).
- Multimedia and IP based service delivery.
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