Price is for 4 Days
Duration
4 days
Objectives
Upon completion of this course, the participant will:
- Understand the ICMP Protocols
- Explain the operation of IP and TCP protocols
- Understand how to troubleshoot TCP performance
- Understand the operation of HTTP protocol
- Explain presense and messaging services
- Understand VoIP services
- Understand the protocol mechanism to deliver YouTube streaming services
- Develop KQIs to measure YouTube customer experience
- Be able to identify end-to-end bottlenecks for YouTube, real-time VoIP, messaging and browsing services: radio, IP-transport and server
Suitable for
System engineers, network designers and cell planners involved with LTE end2end
optimisation activities.
Prerequisite
GSM and UMTS end2end optimisation knowledge, and TCP/IP protocol opration
Content
1. LTE network overview
- The end-to-end quality of service (QoS) model specified by 3GPP
- Network nodes & Interfaces
2. LTE system fundamentals
- NAS signalling: Network attach, default bearer setup
- QoS parameters
- EPS bearers
3. ICMP protocol
- Protocol Description
- Measuring round trip delay
- Identifying packet loss within the mobile network
- Best practices
4. Internet protocol
- IP description & header format
- Diffserv description
- Comparison between LTE end-to-end QoS and Diffserv
5. Transport protocols: TCP and UDP
- UDP description & header format
- TCP description & header format
- Important TCP options: Maximum segment size, Selective acknowledgements, window size & scaling
- Packet segmentation
- TCP slow start, congestion avoidance, fast retransmissions and recovery
- TCP retransmissions
- Interaction with HARQ retransmission targets
- TCP behaviour in mobile networks: packet loss, high delay variation and out-of sequence
- Detecting packet loss in LTE transport
- TCP throughput optimization
5. Web browsing protocols
- HTTP protocol description
- Browsing statistics: page downloads success & delay, profiling of delay
- Tracing and identification of bottlenecks (delay profiling): radio, core, transport and server delay
6. YouTube streaming services
- TCP/HTTP-based video streaming services
- The characteristics of YouTube packet flows (TCP stream) over best-effort LTE/UMTS data connections: ensuring minimum required throughput
- Using radio and/or S5/Gn (wireshark) traces to measure YouTube performance
- YouTube Key Quality Indicators (KQIs)
- Troubleshooting mobile networks for enhanced customer experience
- Identifying end-to-end performance bottlenecks: radio, IP-transport and server
7. Presence & Messaging Services
- Smartphone usage & network performance
- Presense
- Push e-mail
- MMS call flow
- SIP—based messaging
8. VoIP services
- VoIP service implementations
- Voice codecs
- RTP/UDP/IP protocol overhead and ROHC compression
- SIP protocol description
- SIP call flow & IMS extensions
- VoIP performance over LTE
*Several hands-on exercises will be presented covering all discussed course topics.
LTE Radio Optimisation
RM3,200.00Price