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 (see bibliography)@ described in TR 102 021-1 [i]@ clauses 4.2 and 4.3 and subsequent results from a joint ETSUTETRA MOU High Speed Data Workshop held in January 2002 (see bibliography). This URS does not offer any technical solutions as they are considered the responsibility of EPT/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 equipment.