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TETRA Enhanced Data Services

TETRA Enhanced Data Services
TETRA Enhanced Data Services

Improving Safety and Situational Awareness With TEDS Data

The growth of data over TETRA is well established. It began with low-bandwidth applications such as Short Data Service, status and location, evolving steadily toward more advanced messaging and data-base lookup applications available today. TEDS enables these data applications to run much faster while helping make other data services, such as the transfer of images or video, more efficient.
 
A key concern for network providers is maximising the value of their existing investments. To support this aim, our Dimetra IP system has been designed so that only a simple software upgrade is required to implement TEDS, ensuring full reuse of existing TETRA network assets and management infrastructure.”
 
For enhanced personnel safety and efficient incident response, TEDS-enabled networks offer support for live video streaming between emergency responders and control rooms. By offering a secure, high-availability communications platform, TEDS is well suited to a wide range of public safety applications. These include license-plate checks, remote access to databases – such as the electoral roll to check identities – and mobile fingerprint scanning applications.
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A key concern for network providers is maximising the value of their existing investments. To support this aim, our Dimetra IP system has been designed so that only a simple software upgrade is required to implement TEDS, ensuring full reuse of existing TETRA network assets and management infrastructure.”
 
For enhanced personnel safety and efficient incident response, TEDS-enabled networks offer support for live video streaming between emergency responders and control rooms. By offering a secure, high-availability communications platform, TEDS is well suited to a wide range of public safety applications. These include license-plate checks, remote access to databases – such as the electoral roll to check identities – and mobile fingerprint scanning applications.

ABOUT TEDS     

Advances in Digital Signal Processor (DSP) technology have led to the introduction of multi-carrier transmission standards employing Quadrature Amplitude Modulation (QAM). WiMAX, Wi-Fi and TEDS standards are part of this family. TEDS performance is optimised for wideband data rates, wide area coverage and spectrum efficiency.

ADAPTIVE MODULATION     

In addition to adaptive modulation schemes provided by TETRA, TEDS systems use a range of adaptive modulation schemes and a number of different carrier sizes from 25 kHz to 150 kHz. Initial implementations of TEDS will be in the existing TETRA radio spectrum and will likely employ 50 kHz channel bandwidths. This enables an equivalent coverage footprint for voice and TEDS service, avoiding the need for “fill-in” sites dedicated to TEDS.

DATA THROUGHPUT     

A high protection mechanism is typically used to ensure the resilience of the data transmission, giving an effective data rate of up to 80kbps or above available to applications once overheads are considered.
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