Terrestrial Trunked Radio (TETRA), a modern standard for digital Private Mobile Radio (PMR) and Public Access Mobile Radio (PAMR) has very broad capabilities and extensive technical specifications. This course provides a survey of the TETRA market, frequency bands, technology features, network components, interfaces, services capabilities and operational modes. It also details the air interface, transmission architecture and switching infrastructure and inter-operability aspects.
EXPECTED ACCOMPLISHMENTS
On completing this course, participants will be able to:
- Sketch the TETRA network components and identify all the interfaces
- Apply cellular radio principles to the design of large-scale TETRA networks
- Identify TETRA users and services
- Use traffic theory and Erlang-B traffic table to estimate TETRA cell capacity
- List and describe the capabilities of the teleservices and bearer services
- Describe the CS and PS data capabilities of TETRA
- Describe TETRA advanced packet services (TAPS)
- Explain how error protection is applied in TETRA channels
- Describe the radio characteristics of TETRA base station and mobile station
- Discuss digital signal processing techniques in TETRA systems
- Describe network architecture topologies of TETRA and state the functions of key network elements
- Describe the general structure and operation of the TETRA air interface
- Describe all the mobility management functions incorporated in a TETRA network
- Describe the capabilities of trunked mode operation (TMO) and direct mode operation (DMO)
TARGET AUDIENCE
Managers, Engineers, and Technicians involved in the planning, deployment and maintenance of professional mobile networks
COURSE DETAILS
Introduction to TETRA
- PMR standards
- PMR requirements
- TETRA capabilities
- TEDS and TETRA 2
TETRA System Architecture
- Physical and logical entities
- Terminals
- Network topologies
- Interconnections
TETRA Radio Interface
- Vocoders vs. waveform coders
- TETRA codec
- TETRA frequency allocation
- TDMA frames structure
- Simplex and duplex working
- Full duplex and semi-duplex modes
- Logical channels and physical channels
Trunked Mode Operation
- Voice callas
- Short Data Service ( SDS)
- Data calls
- Cell selection
- Location update
- Handoff procedure
Direct Mode Operation
- DMO services
- Frequency efficient mode
- DMO equipment types and connections
- Managed DMO (M-DMO)