4G LTE
EMERGING TRENDS
IP CONVERGENCE & IMS
TECHNOLOGY FOR BUSINESS
UMTS/HSPA+
WIRELESS LANDSCAPE
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The IMS (IP Multimedia Subsystem) is the 3GPP network of choice for VoIP and advanced services and VoLTE (or Voice over LTE) is the initial service of the IMS architecture. IMS uses the existing LTE network as a transport network to support the delivery of VoLTE calls. This course uses a scenario- based approach to explore the IMS and the key services provided by IMS and the LTE networks. This course starts with a refresher of the VoLTE network architecture, followed by connectivity of the UE to VoLTE network components, highlighting an end-to-end signaling and traffic paths. Students then step through key scenarios such as VoLTE registration, VoLTE to VoLTE calls, and Interworking with the PSTN/3G. Special Note: This course can be customized with VoLTE Signaling log walk-through, if provided by the customer.
Learning Objectives
After completing this course, the student will be able to: • Sketch the VoLTE network architecture • Walk through the following scenarios and identify the SIP messages and related parameters for: - VoLTE registration - VoLTE to VoLTE call setup and release - VoLTE to PSTN interworking - Voice Call Continuity - Emergency Calls • Step through the dedicated bearer setup during VoLTE call initiation • Explain the QoS enhancements of the RAN to support VoLTE delay requirements including the key LTE features of TTI Bundling, Semi-Persistent Scheduling, and Robust Header Compression
Intended Audience
This course is designed for those involved in VoLTE deployment in LTE RAN and EPC networks.
Suggested Prerequisites
• Excellent understanding of LTE Air Interface Signaling
Course Length
3 days
Course Outlines / Knowledge Knuggets
1. VoLTE Network Architecture 1.1. VoLTE network architecture 1.2. CSCF, HSS, AS, ENUM 1.3. P-GW, PCEF, and PCRF connectivity 1.4. End-to-end signaling and traffic paths 2. Bearer Setup for IMS APN 2.1. PDN connection setup for IMS 2.2. Default bearer setup 2.3. P-CSCF discovery 2.4. PCRF-PCEF interactions 2.5. Exercise: IMS APN connectivity 3. VoLTE Registration 3.1. IMS registration 3.2. SIP signaling with P-CSCF 3.3. User identities for VoLTE 3.4. Application registration 3.5. Exercise: LTE-IMS registration 4. VoLTE Call Setup 4.1. Call setup scenario overview 4.2. VoLTE call initiation signaling 4.3. Voice codec options 4.4. Resource reservation with PCRF 4.5. Dedicated EPS bearer setup 4.6. Exercise: End-to-end VoLTE call 5. VoLTE QoS and Traffic Management 5.1. Semi-Persistent-Scheduling 5.2. TTI bundling 5.3. Robust header compression 5.4. RTP and RTCP for user traffic 5.5. VoLTE and HARQ 5.6. Exercise: Resource utilization 6. Overview of VoLTE <--> PSTN/3G Calls 6.1. Role of ENUM. MGCF, MGW 6.2. VoLTE-PSTN termination signaling 6.3. Transcoding during interworking 6.4. End-to-end signaling and traffic paths for PSTN termination 7. Voice Call Continuity 7.1. SRVCC/eSRVCC network architecture 7.2. VCC call setup 8. Emergency Call Support 8.1. E-CSCF reference architecture 8.2. Registration for emergency service
------------------------------------WHY CUSTOMERS LOVE OUR ELEARNING:
- Self-paced, animated, and interactive- $150/each course for 6 month license- Immediate online access upon purchase- Flexible way to take training at any hour- Online training transcript available