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ETSI TR 102 021-4
M00004580
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ETSI TR 102 021-4 Terrestrial Trunked Radio (TETRA); User Requirement Specification TETRA Release 2.1; Part 4: Air Interface Enhancements
standard by European Telecommunications Standards Institute, 08/01/2011
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The present document provides the User Requirement Specifications (URS) for the TETRA air interface enhancementstranslated into terms of:network performance aspects;terminal performance aspects;location information aspects.The present document is applicable to the specification of TETRA Release 2.1 equipment.The user requirements contained in the present document are described in non-technical terms and are based on discussions in TC TETRA WG1 and on an analysis of the results for air interface enhancements from the 2001 TETRA Release 2 Market Questionnaire and the 2007 Future of TETRA workshop [i.1].