4G LTE Signaling, Protocols and Procedures

4G LTE connectivity within the city with skyscrapers

This course provides participants with a comprehensive overview of the LTE system from a signaling perspective. Participants will review the LTE system architecture and interfaces and gain an understanding of how the user plane and control plane protocols are implemented in LTE. Each protocol will be thoroughly explained to help participants develop a strong foundation for further analysis of overall signaling procedures.

  • Network Operators
  • Equipment Manufacturers
  • Regulators
  • Technical staff who require an in-depth understanding of LTE signaling
    • System Engineers responsible for testing and verification
    • Telecom professionals supporting implementation, network operations and maintenance
    • Professionals in LTE hardware and software development)
Instructor-led Training
  • Classroom: 4 days
  • LIVE Virtual*: 28 hours
  • A minimum of 6 or more participants are required for a company-based LIVE Virtual course to commence
  • LIVE Virtual courses can be conducted for 5 hours or 7 hours daily. Please note that the number of training days will be extended if you opt for 5 hours daily.

28 – 31 Aug 2023 (Mon – Thurs), GMT +08:00
If you are keen on attending the above scheduled course, please register your interest via our course enquiry form.

This training aims to equip participants with a comprehensive understanding of LTE-specific signaling protocols and procedures. At the end of this course, participants will be able to:

  • Analyze and troubleshoot non-access stratum and access stratum signaling in LTE
  • Explain the concept of User Plane and Control Plane protocols in LTE
  • Evaluate the role of Radio Link Control (RLC), Radio Resource Control (RRC), and Packet Data Convergence Protocol (PDCP) in LTE
  • Analyze and troubleshoot MAC procedures in LTE
  • Follow message sequences on various interfaces in LTE
  • Evaluate interworking with non-LTE systems
  • Apply learned concepts to analyze and optimize LTE signaling procedures
  • Identify and troubleshoot signaling issues in LTE
  • Develop a strong foundation in LTE signaling and protocols

Participants will gain an extensive knowledge of LTE signaling implementation, including the concepts of non-access and access stratum, and detailed information on the most significant protocols. This will enable them to describe signaling message flows in LTE systems over various interfaces with confidence and accuracy.

By the end of the course, participants will have a thorough understanding of LTE signaling, which will help them analyze and troubleshoot signaling issues in LTE networks, as well as identify opportunities for optimization and improvement.

  1. LTE Architecture and Components
  • Core network: SAE Overciew
  • Access Network: E-UTRAN Overview
  • Roaming Architecture
  • Interworking with other Networks
  1. Generic LTE/SAE Protocol Architecture
  • User Plane
  • Control Plane
  • Quality of Service (QoS) Concept
  • EPS Bearers
  1. E-UTRAN Network Interface: S1
  • Protocol Structure 
  • Initiation over S1
  • Context Management
  • Bearer Management 
  • Paging over S1
  • Mobility over S1
  • Load Management

4. E-UTRAN Network Interface: S1

  • Protocol Structure
  • Initiation over X2
  • Mobility over S2
  • Load and Interference Management
  • UE Historical Information over X2

5. Control Plane Protocols: Radio Resource Control (RRC)

  • System Information
  • Connection Control in LTE
  • Connected Mode Inter-RAT Mobility
  • Measurements
  • PLMN and Cell Selection
  • Cell Reselection Paging
6. User Plane Protocols: Packet Data Convergence Protocol (PDCP)
  • Functions and Architecture
  • Header Compression
  • Security
  • Handover
  • PDU Formats
  • Discard of Data Packets
7. User Plane Protocols: Radio Link Control (RLC)
  • RLC Entities
  • Transparent Mode – TM – Entity
  • Unacknowledged Mode – UM – Entity
  • Acknowledged Mode – AM – Entity
  • RLC PDU Formats
8. User Plane Protocols: Medium Access Control (MAC)
  • Mac Architecture
  • Mapping of Logical Channels to Transport Channels
  • Mac Procedures
  • Random Access
  • Uplink Time Alignment
  • Downlink Data Transfer
  • Uplink Data Transfer
  • PDUs and Formats
9. Non-Access Stratum – NAS Signaling
  • NAS Protocol States and Transitions
  • NAS Security
  • Integrity Protection
  • Non-access Stratum Protocols
  • Evolved Mobility Management – EMM
  • Evolved Session Management – ESM
  • Mobility Management across EMM states
  • EMM Procedures
10. Evolved GTP: GTPc2-C
  • GTP Stack
  • GTP Format
  • Messages 
  • Path Management
  • Tunnel Management
  • Mobility Management

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