TETRA

Introduction

TErrestrial Trunked RAdio (TETRA) is a digital trunked mobile radio standard developed to meet the needs of traditional Professional Mobile Radio (PMR) user organisations such as:

  • Public Safety 
  • Transportation 
  • Utilities 
  • Government 
  • Military 
  • PAMR 
  • Commercial & Industry 
  • Oil & Gas

The TETRA standard has been specifically developed to meet the needs of a variety of traditional PMR user organisations. This means it has a scaleable architecture allowing economic network deployments ranging from single site local area coverage to multiple site wide area national coverage.

Some unique PMR services of TETRA are:

  • Wide area fast call set-up "all informed net" group calls 
  • Direct Mode Operation (DMO) allowing "back to back" communications between radio terminals independent of the network 
  • High level voice encryption to meet the security needs of public safety organisations 
  • An Emergency Call facility that gets through even if the system is busy 
  • Full duplex voice for PABX and PSTN telephony communications

Besides meeting the needs of traditional PMR user organisations, the TETRA standard has also been developed to meet the needs of Public Access Mobile Radio (PAMR) operators.

To meet the ever changing user requirements and utilise the latest in technology developments, TETRA continues to be evolved and enhanced with the development of new standards. This includes:

TETRA Release 2, which includes the TETRA Enhanced Data Service (TEDS) that provides wideband high speed data communication services.

Our Role & Activities

ETSI technical committee TETRA and Critical Communications Evolution (TCCE) produces the TETRA (Terrestrial Trunked Radio) standard which delivers frequency spectrum efficient digital PMR and PAMR system to support voice and data services using techniques such as Trunking, Time Division Multiple Access (TDMA) methods and a variety of efficient modulation schemes for increased data throughput.

In addition to the ongoing maintenance and development of the TETRA standard their activities include:

  • Identifying requirements for mission and business critical broadband services that will enable an evolution of digital narrowband PMR services to mobile broadband
  • The provision and development of proportionate security measures for TETRA and mission critical communications services
  • Proposing and developing solutions for the development of mission critical broadband services
  • The development of interworking interfaces between TETRA systems and mission-critical broadband systems
  • The evolution and enhancement of TETRA and critical communications services as required by the market with the provision of new services, facilities and functionality made possible by new technology innovations and standards

Active TCCE WGs:

  • WG1 TCCE User Requirements / Services
  • WG3 TCCE Air Interface and Network Protocols
  • WG4 TCCE High Speed Data
  • WG6 TCCE Security

Within ETSI, the work of the TCCE committee depends on effective cooperation with other committees, such as ETSI EMC & Radio Spectrum Matters (ERM) committee, ETSI EMTEL and ETSI SAGE for security matters.

Outside ETSI, the TCCE committee liaises with the TETRA and Critical Communications Association (TCCA) on a number of topics e.g. promotional and technical discussions on how to best advance the TETRA Standard ensuring that the needs of the PMR community for mission-critical broadband services are met. Or with 3GPP on requirements and proposed architectural solutions for critical communications broadband evolution.

TETRA codes and security algorithms

Details of ETSI algorithms (TEA1, TEA3, TEA4, TAA1).

Please see details of TETRA codes.

Standards & Algorithms

The following is a list of the 20 latest published ETSI standards on TETRA.

A full list of related standards in the public domain is accessible via the ETSI standards search. Via this interface you can also subscribe for alerts on updates of ETSI standards.

For work in progress see the ETSI Work Programme on the Portal.

TETRA algorithms are available via ETSI algorithms.

Standard No. Standard title.
EN 300 396-6 Terrestrial Trunked Radio (TETRA); Direct Mode Operation (DMO); Part 6: Security
TR 102 300-7 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D): Designers' guide; Part 7: TETRA High-Speed Data (HSD); TETRA Enhanced Data Service (TEDS)
EN 300 392-5 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct Mode Operation (DMO); Part 5: Peripheral Equipment Interface (PEI)
TR 103 414 TETRA and Critical Communications Evolution (TCCE); Study into the provision of speech services over QAM channels
EN 300 392-2 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI)
EN 300 392-12-4 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 4: Call Forwarding (CF)
EN 300 392-3-5 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 5: Additional Network Feature for Mobility Management (ANF-ISIMM)
TR 102 300-6 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D): Designers' guide; Part 6: Air-Ground-Air
TS 100 392-5 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct Mode Operation (DMO); Part 5: Peripheral Equipment Interface (PEI)
TS 101 052 Rules for the management of the TETRA standard authentication and key management algorithm set TAA1
TS 101 053-1 Rules for the management of the TETRA standard encryption algorithms; Part 1: TEA1
TS 101 053-3 Rules for the management of the TETRA standard encryption algorithms; Part 3: TEA3
TS 101 053-4 Rules for the management of the TETRA standard encryption algorithms; Part 4: TEA4
TS 100 392-2 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI)
EN 300 392-3-1 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 1: General design
TS 100 392-18-4 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct Mode Operation (DMO); Part 18: Air interface optimized applications; Sub-part 4: Net Assist Protocol 2 (NAP2)
TR 102 300-5 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers' guide; Part 5: Guidance on numbering and addressing
EN 300 394-1 Terrestrial Trunked Radio (TETRA); Conformance testing specification; Part 1: Radio
TS 100 392-18-1 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct Mode Operation (DMO); Part 18: Air interface optimized applications; Sub-part 1: Location Information Protocol (LIP)
EN 300 392-12-22 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 22: Dynamic Group Number Assignment (DGNA)