Length: 2 Days
VoLTE QoS Training Course Description
VoLTE QoS Training covers all the QoS and QoE features in LTE and LTE-A to support VoLTE. One of the major challenges associated with Voice over LTE (VoLTE) is defining the Quality of Service (QoS) features for the LTE RAN, EPC and IMS.
VoLTE QoS Training course covers how LTE networks support end-to-end QoS for different IP-based services such as voice, video, multimedia messaging, and gaming. QoS in LTE Radio, EPC, LTE Backhaul and Core Network, PCC (Policy and Charging Control), EPS Bearers, policy, QCI for voice and video applications are covered. Voice over LTE will play a key part in determining a subscriber’s Quality of Experience (QoE) on a LTE/EPC/IMS network.
LTE Application layer level performance is important and the QoS prioritization of the voice element has to be accurate. VoLTE is positioned as a high quality voice service enabling call quality on LTE, EPC and IMS networks. The challenge for the is to ensure User Equipment (UE), Radio Access Network (RAN), Evolved Packet Core (EPC) and IP Multimedia Subsystem (IMS) core are optimized to deliver the best quality of service aligned with the SLA and policies.
Course Content
Introduction
- LTE and LET-A service applications and performance
- Overview of VoLTE
- Overview of Quality of Service (QoS)
- Overview of Quality of Experience (QoE)
- QoS and QoE basic functions for VoLTE
- VoLTE QoS functions
- QoS provisioning for VoLTE
- QoS and QoE Management in LTE and LTE-A
- Vision for QoS and Policy Management in LTE and EPC Networks
- Role of QoS and Policy Management in LTE and LTE-A
- Policy Management and QoS Considerations for LTE and LTE-A
VoLTE QoS Strategies
- VoLTE call establishment
- QoS Strategies for IMS & VoLTE
- LTE network QoS settings for VoLTE
- LTE radio access networks
- Standardized QCI parameters
- EPS bearers and PDN connections
- Role of Evolved Packet Core (EPC)
- Communication with the Mobility Management Entity (MME) and Serving Gateway (SGW)
- Role of IP Multimedia Subsystem (IMS)
- Role of policy and charging control (PCC)
- Role of PCRF (policy and charging rules function)
- QoS quality on the mobile access link
- Role of VoLTE application
- Prioritizing VoLTE flows
- VoLTE Call billing and call termination procedures
- VoLTE Subscriber or QoE performance
VoLTE QoS Requirements and Mechanisms
- QoS Requirements of Applications
- Media Transport Functions
- CODEC & Transport Network
- Comparison of audio codecs
- Real-time Transport Protocol (RTP)
- Feedback and Statistics
- RTP Control Protocol (RTCP)
- Adaption
- Delay, Jitter and packet loss
- Jitter buffers and playout points
- Network Congestion Control for providing network performance enhancement
- RED (Random Early Detection)
- WFQ (Weighted Fair Queuing)
- Network Resource Reservation Resource Reservation: RSVP
- Differentiated Service: DiffServ
- Role of MPLS and MPLS-TE in the core network
VoLTE Service Optimization
- Service optimization concept and architecture
- QoS optimization in LTE networks
- Service application performance improvements
VoLTE QoS and QoE Testing and Monitoring
- VoLTE QoS Testing and Validation
- VoLTE QoS performance on mobility or in call handover scenarios.
- Bandwidth management of the subscriber applications
- Management of the User Equipment (UE) measurement reports
- Call continuity when roaming
- VOLTE Performance Testing
- Validating Service Quality to Ensure Subscriber Quality of Experience (QoE)
- Service Quality Validation for LTE and LTE-A
- Managing LTE networks to handle voice using VoLTE