LTE Signalling and Protocol Troubleshooting Course

Analyze LTE control-plane procedures, correlate radio and core traces, and build a repeatable fault-isolation method.
LTE Signalling and Protocol Troubleshooting Course

At a glance

Duration
1 Week
Format
Classroom
Cities
Barcelona, Athens, Geneva, Amsterdam, Manama, Abu Dhabi and more
Next session
16 – 20 November 2026, Barcelona
Average fee
5,750 €

Overview

LTE Signalling and Protocol Troubleshooting Training Course is a one-week intermediate course for mobile network engineers, LTE protocol analysts, radio and core operations teams, and telecom troubleshooting specialists who leave with an LTE Signalling Troubleshooting Playbook. Participants connect LTE control-plane architecture, RRC procedures, NAS procedures, S1AP signalling, EPS bearer flows, mobility events, and protocol trace analysis to diagnose service failures across radio and evolved packet core domains. Agile Leaders Training Center develops practical LTE signalling troubleshooting capability.

Who Should Attend

  • Mobile network teams responsible for LTE service availability and incident resolution
  • Radio access teams responsible for RRC behavior, mobility, and handover performance
  • Core network teams responsible for NAS, S1AP, subscriber context, and bearer procedures
  • Protocol analysis teams responsible for message traces and cause-code investigation
  • Operations assurance teams responsible for cross-domain fault isolation and escalation

The course assumes participants already work with LTE network operations or protocol traces and leaves vendor-specific commands, radio planning, and equipment configuration outside its scope.

Departments and Industries

The course supports departments and industries that operate, assure, or integrate mobile connectivity.

  • Mobile telecommunications network operations
  • Radio access network engineering and optimization
  • Packet core operations and service assurance
  • Network equipment and systems integration
  • Transport, utilities, and industrial private-network teams

Learning Objectives

By the end of this course, participants will be able to:

  • Analyze LTE and EPC entities, interfaces, and control-plane stacks.
  • Apply RRC and NAS message sequences to trace interpretation.
  • Compare default and dedicated EPS bearer procedures.
  • Diagnose attach, service request, and context failures.
  • Evaluate mobility and handover signalling across X2 and S1.
  • Build an LTE Signalling Troubleshooting Playbook.

Course Agenda

Day 1: Map LTE Signalling Architecture

  • LTE and EPC Network Entity Map
  • Uu, S1-MME, S11, and X2 Interface Matrix
  • Control-Plane Protocol Stack Layer Map
  • UE Identity and Context Reference Sheet
  • LTE Signalling Trace Correlation Method

Day 2: Analyze RRC Procedures

  • RRC State and Connection Procedure Diagram
  • System Information and Cell Access Checklist
  • RRC Connection Establishment Message Flow
  • RRC Security and Reconfiguration Sequence
  • RRC Failure Cause and Timer Analysis Grid

Day 3: Analyze NAS and Bearer Procedures

  • EPS Attach and Registration Message Flow
  • NAS Authentication and Security Sequence
  • Default EPS Bearer Establishment Flow
  • Dedicated Bearer and QoS Context Map
  • NAS Cause Code and Timer Diagnostic Table

Day 4: Diagnose Mobility and Core Signalling

  • S1AP UE Context Procedure Flow
  • Tracking Area Update Message Sequence
  • X2 and S1 Handover Comparison Matrix
  • Service Request and Paging Procedure Trace
  • LTE Roaming Signalling Pathway Map

Day 5: Practice LTE Signalling Troubleshooting

  • Suggested Exercise: Correlate RRC and NAS Traces
  • Suggested Exercise: Diagnose an Attach Failure
  • Suggested Exercise: Analyze Bearer Establishment
  • Suggested Exercise: Resolve a Handover Failure
  • Capstone Exercise: Complete an LTE Signalling Troubleshooting Playbook

Practical Exercises

The course uses suggested activities based on anonymized mobile operator, systems integration, transport, and industrial network cases.

  • Suggested activity: map LTE and EPC entities, interfaces, identities, and control-plane protocol layers.
  • Suggested activity: correlate RRC, NAS, and S1AP messages to isolate an attach or service request failure.
  • Suggested activity: compare bearer, mobility, and handover traces using cause codes and timers.
  • Suggested activity: present an LTE Signalling Troubleshooting Playbook with evidence, decision points, and escalation paths.

FAQs

Who suits LTE signalling troubleshooting training, and what does it assume?

LTE signalling troubleshooting training suits radio, core, assurance, and protocol analysis teams. It assumes participants already work with LTE operations or traces and can recognize basic mobile network entities.

How does LTE signalling troubleshooting differ from general LTE network training?

LTE signalling troubleshooting focuses on message flows, protocol states, timers, cause codes, trace correlation, and failure isolation. General LTE network training usually gives broader architectural coverage without the same diagnostic depth.

What is LTE protocol trace analysis?

LTE protocol trace analysis is the structured examination of RRC, NAS, S1AP, and related messages to reconstruct a procedure, locate the failure point, and connect observed causes to radio or core conditions.

How are RRC and NAS procedures related in LTE signalling?

RRC establishes and manages the radio control connection, while NAS carries mobility, security, and session procedures between the device and core network. Effective diagnosis correlates both timelines.

Why do EPS bearer procedures matter in LTE troubleshooting?

EPS bearer procedures determine how connectivity and quality-of-service context are established and changed. Their message sequences help analysts distinguish access, context, policy, and transport-related failures.

Conclusion

Participants take back an LTE Signalling Troubleshooting Playbook. It combines architecture maps, procedure flows, trace-correlation steps, timer and cause-code tables, bearer and mobility checks, and escalation evidence. The playbook helps network teams reconstruct signalling sequences, isolate cross-domain failures, and communicate diagnostic findings consistently.

credits: 5 credit per day

Course Mode: full-time

Provider: Agile Leaders Training Center

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Image Location Dates Duration Mode Price Actions
Cairo Cairo Week 07, 2027
15 – 19 February 2027
1 Week Onsite €4,100
Madrid Madrid Week 08, 2027
22 – 26 February 2027
1 Week Onsite €5,700
Lisbon Lisbon Week 08, 2027
22 – 26 February 2027
1 Week Onsite €5,700
Paris Paris Week 09, 2027
1 – 5 March 2027
1 Week Onsite €5,700
Jakarta Jakarta Week 09, 2027
1 – 5 March 2027
1 Week Onsite €5,700
Vienna Vienna Week 10, 2027
8 – 12 March 2027
1 Week Onsite €5,700
Kuala Lumpur Kuala Lumpur Week 11, 2027
15 – 19 March 2027
1 Week Onsite €5,200
Istanbul Istanbul Week 13, 2027
29 March – 2 April 2027
1 Week Onsite €4,500
Berlin Berlin Week 13, 2027
29 March – 2 April 2027
1 Week Onsite €5,700
Johannesburg Johannesburg Week 13, 2027
4 – 8 April 2027
1 Week Onsite €4,500
Cape town Cape town Week 14, 2027
11 – 15 April 2027
1 Week Onsite €4,500
Tokyo Tokyo Week 15, 2027
12 – 16 April 2027
1 Week Onsite €10,000
Manama Manama Week 15, 2027
18 – 22 April 2027
1 Week Onsite €4,700
Dubai Dubai Week 17, 2027
26 – 30 April 2027
1 Week Onsite €4,500
Addis Ababa Addis Ababa Week 17, 2027
26 – 30 April 2027
1 Week Onsite €4,500
Langkawi Langkawi Week 17, 2027
2 – 6 May 2027
1 Week Onsite €6,000
Barcelona Barcelona Week 18, 2027
3 – 7 May 2027
1 Week Onsite €5,700
Rome Rome Week 19, 2027
10 – 14 May 2027
1 Week Onsite €5,700
Milan Milan Week 20, 2027
17 – 21 May 2027
1 Week Onsite €5,700
Abu Dhabi Abu Dhabi Week 20, 2027
17 – 21 May 2027
1 Week Onsite €4,700

Frequently asked questions

What does this course cover?

OverviewLTE Signalling and Protocol Troubleshooting Training Course is a one-week intermediate course for mobile network engineers, LTE protocol analysts, radio and core operations teams, and telecom troubleshooting specialists who leave with an LTE Signalling Troubleshooting Playbook. Participants connect LTE control-plane architecture, RRC procedures, N…

Are training dates available?

Yes. Available dates and destinations are listed in the course dates section on this page.

How can I register?

Choose an available date on this page and complete the registration form, or send a programme enquiry.

Can I download the course brochure?

Yes. Use the brochure download link provided on this page.

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