scope:

The present document contains the User Requirements Specifications (URS) which are described in non-technical terms and are based on an analysis of the results for High Speed Data from the TETRA Release 2 Market Questionnaire, described in TR 102 021-1 [i.1], clauses 4.2 and 4.3, subsequent results from a joint ETSI/TETRA MoU High Speed Data Workshop held in January 2002, and the Future of TETRA workshop held during the TETRA World Congress 2007 [i.2]. This URS does not offer any technical solutions as they are considered the responsibility of TC TETRA/WG4. The present document provides the user requirements for HSD translated into terms of:

• HSD applications and net data rates to support non-voice applications

• Data rate capacity in addition to TETRA V+D

• RF coverage requirements for HSD

• Frequency spectrum efficiency requirements

• Integration of HSD with TETRA Release 1 V+D services

• Compatibility of HSD with TETRA Release 1 V+D services

• HSD call types

• Backward Compatibility with TETRA Release 1

• Migration from TETRA Release 1

• Availability of HSD

• Relative importance of HSD user requirement criteria

The present document is applicable to the specification of TETRA Release 2.1 equipment.