TETRA In-Depth with RF Basics Training

This comprehensive 5-day TETRA In-Depth with RF Basics Training course includes an introduction to RF (Part 1) followed by an in-depth discussion of TETRA (Part 2). It’s aimed at technicians and others with limited exposure to Telecommunications (especially RF) and Mathematics. We will teach this course in a manner that enables easy understanding through the use of diagrams, examples, and easy-to-follow explanations.

PART 1: BASICS OF RF

Radio Waves and Channels

• What are radio waves?
• The electromagnetic spectrum
• Controlling radio use: The role of the regulator
• Spectrum allocations
• Radio bandwidth and channels

RF Mathematics Explained

• A simple overview and explanation of the math we will use in this course
• The math processes and examples

The Language of RF

• DBS, dBm, dBw, dBi
• Understanding the relevance of the terms
• Antennas and antenna gain

Noise and Interference

• Signal Noise Ratio (SNR)
• Shannon’s Law and its relevance
• Thermal noise
• Man-made noise
• Impact of rainfall and other impairments

Radio Modulation

• What is radio modulation?
• Modulation techniques
• Forward error correction: What it is and how it works

Radio Propagation

• What propagation is and how it works
• Impairments to propagation
• Path loss predictions and modeling
• Fading environments
• Multipath
• Diversity techniques

PART 2. TETRA IN DEPTH

Introduction

• Trunked mobile communications
• Concepts and benefits of trunking
• TETRA technology
• ETSI standardization
• The TETRA MoU
• TETRA equipment and systems

Features and Services

• TETRA features
• Bearer services, teleservices, supplementary services
• Voice and data services
• Circuit-switched and packet-switched data
• IP packet data
• Short Data Service (SDS)
• Direct Mode Operation (DMO))
• Trunked Mode Operation (TMO)
• Support for Value Added Services (VAS)
• TETRA applications
• Spectral efficiency
• Security aspects

TETRA Architecture

• BS, LSC, MSC, LS, MT, TE
• TETRA network and standard interfaces
• Standard gateways
• Trunked mode air interfaces
• Inter System Interface (ISI)
• Terminal Equipment Interface (PEI)
• Line Station Interface (LSI)
• Network Management Interface (NMI)
• Direct Mode Air Interface (DMAI)
• Gateways to public networks
• TETRA Direct Mode Operation (DMO)
• Gateway mobile station
• Repeater station
• Interoperability

Addressing, Numbering, Dialing, and TETRA MMI

• Numbering and addressing
• TEI, MNI, TSI, SSI
• GTSI, ATSI
• Handset identification
• Leading digit dialing
• Call scenarios
• TETRA IP

TETRA Air Interface

• Spectrum allocations and channel assignments
• Physical and logical channels
• TDMA structure
• Medium Access Control (MAC) sublayers
• Logical Link Control (LLC) layer
• Frame, slot, and burst structures
• Air interface message sets

TETRA Procedures

• MS operational modes
• Mobility management
• Cell selection and reselection
• Cell selection in traffic mode
• Security, authentication, and encryption
• Failover options
• Example call setup message flows

TETRA in Depth with RF Basics Training – TETRA Voice Coding

• ACELP coding
• Speech vs. transmission frames
• Interfaces with other voice systems
• Voice transcoding

TETRA and Data Networks

• Circuit mode data operation
• Packet mode operation
• X.25, TETRA data services, SCLNP
• Inter-network protocols
• TETRA IP
• Interworking with IP networks
• TETRA over IP solutions

TETRA Security and Billing

• Overview of TETRA security requirements
• Authentication, air interface encryption
• End-to-end encryption
• Billing in TETRA networks

TETRA Physical Layer

• Frequency allocation
• Carrier frequencies and radio channel numbers
• π/4DQPSK modulation
• Frame, slot, and burst structures
• Synchronization
• Frequency reference
• Transmission delays
• Scrambling
• Power control
• Channel quality measurement
• Physical layer performance

TETRA Data Link Layer

• LLC and MAC sublayers
• Coding and interleaving
• FEC and error detection
• Channel coding for data and signaling
• Coding parameters
• Stealing
• Random Access (RA)
• Logical channel routing
• System modes: Normal, extended, minimum, discontinuous
• Mobile station modes: Idle, signaling and packet data, traffic, economy

TETRA Network Layer

• Network layer concepts
• TETRA network layer
• TETRA protocol stacks
• Mobile to base link
• Mobility management protocols
• Circuit mode operation
• Packet mode operation
• X.25, TETRA data services, SCLNP
• Inter-network protocols

TETRA and Public Mobile Systems

• GSM services and features
• Comparison of TETRA and GSM
• Convergence of TETRA and GSM
• Evolution of TETRA towards 3G services
• Unifying TETRA and UMTS

TETRA Network Planning

• Frequency spectrum, planning, and re-use C/I requirement; coverage requirement
• Coverage planning
• TETRA link budget
• Capacity planning
• GoS requirement and traffic load prediction
• Challenges for TETRA planning
• Tools for TETRA planning

Indoor Radio Planning

• Why is indoor coverage important?
• Indoor planning procedure
• The RF design process
• Design strategy
• The indoor link budget

TETRA Performance

• Received signal strength measurement
• Signal quality measurement; receiver sensitivity
• Round trip MS-BS path delay
• TETRA reference channels; TETRA receiver classes
• Interference with other systems
• Monitoring TETRA performance
• Field measurements
• Tools for field measurement

TETRA in-Depth with RF Basics Training Wrap-up

• Course Recap and Q/A
• Evaluations

TETRA In-Depth with RF Basics Training Course Wrap-Up