TETRA Air Interface — a 2-day TETRA Air Interface training course

 

Course duration: 2 days

Course Price: £995

Course code: 644

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Why this TETRA Air Interface course?

This TETRA training course course has been designed to compliment course 643: TETRA System Overview. In just two days this TETRA course covers all aspects of the TETRA Air Interface.

Who should attend this TETRA Air Interface course

• Engineers and technical professionals involved with PMR or PAMR systems, requiring a detailed coverage of the TETRA air interface and its operation.

TETRA Air Interface Course Pre-requisites

Course 643: TETRA System Overview, or equivalent knowledge of TETRA systems, is a pre-requisite for this course.

Lifetime Post-Course Support

After completing this TETRA Air Interface training course, delegates receive lifetime post-training support from LEVER Technology Group PLC, to help them apply the technologies and skills they have learned with us, to provide career-long support, and to ensure they are better equipped for their future roles in IT and networking.

TETRA Air Interface Training Course Content

Review of TETRA Architecture and Operation

• TETRA Features and Services
• Trunked Mode operation
• Direct Mode Operation

Overview of the TETRA Air Interface

• Spectrum allocations and channel assignments
• Physical and Logical channels
• TDMA structure
• Medium Access Control sublayers
• Logical Link Control layer
• Air interface message sets
• Idle mode and dedicated mode procedures
• Power budgets and range estimation
• Cellular capacity issues

The TETRA Physical Layer

• Frequency allocation
• Carrier Frequencies and Radio Channel Numbers
• p/4DQPSK modulation
• Frame, slot and burst structures
• Synchronisation
• Frequency reference
• Transmission delays
• Scrambling
• Power control
• Channel quality measurement
• Physical layer performance
• Emissions and interference
• Area coverage techniques

The TETRA Data Link Layer

• LLC and the MAC sublayers
• Coding and interleaving
• FEC and error detection
• Channel coding for Data and Signalling
• Coding parameters
• Stealing
• Random Access
• Logical channel routing
• System modes: Normal, Extended, Minimum, Discontinuous
• Mobile Station modes: Idle, Signalling & Packet Data, Traffic, Economy

The TETRA Network Layer

• Network layer concepts
• The TETRA Network layer
• TETRA protocol stacks
• Mobile to Base Link
• Mobility Management protocols
• Circuit mode operation
• Packet mode operation
• The higher layers: X.25, TETRA data services, SCLNP
• Inter-network protocols

TETRA Voice Coding

• Voice coding schemes
• ACELP coding
• Speech versus transmission frames
• Identifying voice calls in TETRA systems
• Extracting voice payload from TETRA channels
• Interfaces to other voice systems
• Voice transcoding

TETRA Security

• Principles of encryption and authentication
• TETRA authentication
• TETRA encryption
• Encryption keys
• OTA Re-keying
• End-to-End encryption

Operational Factors

• Idle mode and dedicated mode procedures
• Power budgets
• Range considerations
• Air interface configurations and parameters

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