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
- 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)
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)