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[LTE_418] LTE RAN Signaling and Operations: Part 1 - Attach

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Long Term Evolution (LTE) is a radio technology based on OFDM and MIMO technologies. LTE provides much higher data rates (over 100 Mbps) to users while reducing the cost-per-bit for service providers. This is very exciting to wireless operators who are eager to deploy multimedia rich Internet content over a wireless medium with seamless access anywhere at any time. This course describes the detailed procedures using call flows and ladder diagrams the system acquisition, RRC connection and steps through Network Attach procedure. In summary, this course provides a comprehensive overview of various procedures of a UE while registering on an LTE network.

Learning Objectives

After completing this course, the student will be able to:
• List the steps involved in initial system acquisition
• Describe how the primary and secondary synchronization signals are used
• Identify the key channel configuration parameters received over the broadcast channel
• Illustrate the random access procedure
• Explain the purpose of signaling radio bearers
• Show the steps involved in establishing an RRC connection
• Illustrate the end to end message flow for the Network Attach procedure
• Explain how MMEs/S-GW and P-GW are selected
• Sketch the process for setting up a default EPS bearer
• Describe IP address allocation
• Outline the differences between the EMM state

Intended Audience

This course provides a comprehensive overview and a technical introduction to UE Attach procedure. It is suitable for engineers in network planning and design, product design and development, network deployment, network performance, and network operations.

Suggested Prerequisites

• [LTE_102] LTE Overview (eLearning)

Course Length

1.5 Days Instructor Led

Course Outlines / Knowledge Knuggets

1. System Acquisition
1.1. UE power-up sequence
1.2. Initial power-up parameters
1.3. Synchronization signals
1.4. System Information Block (SIB) types
1.5. MIB example
1.6. SIB1 example
1.7. Initial network selection
1.8. Initial cell selection
1.9. Review exercises
1.10. Summary

2. RRC Connection to LTE RAN
2.1. Access signaling - Random Access procedure
2.2. SIB2 parameters
2.3. PRACH power calculation
2.4. Timers for PRACH probes
2.5. Preamble formats
2.6. Random access response
2.7. Contention resolution
2.8. RRC connection set up
2.9. Signaling radio bearers
2.10. Review exercises
2.11. Summary

3. LTE Network Attach – Part1
3.1. Steps involved in LTE EPS bearer set up
3.2. AS and NAS signaling
3.3. S1-MME set up
3.4. MME selection
3.5. LTE security features
3.6. UE authentication
3.7. NAS security set up
3.8. Exercises

4. LTE Network Attach – Part 2
4.1. S6a signaling - update location request
4.2. P-GW and S-GW selection
4.3. PDN connectivity service
4.4. AS security procedure
4.5. UE capabilities negotiation
4.6. Default bearer set up procedure
4.7. Non-access stratum states
4.8. Summary
4.9. Exercises


- 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

- Electronic certificates at completion

- Full list of courses at


For any additional questions,
please contact Mr. Rod Marckese
at +1-972-664-0727 x246 or

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