TR 102 300-3 : 1.3.3

Intellectual Property Rights
Foreword
1 Scope
2 References
   2.1 Normative references
   2.2 Informative references
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 What is direct mode and why do we need it?
   4.1 General
   4.2 Frequency of operation
   4.3 Managed Direct Mode
5 Direct mode services and facilities
   5.1 Service definitions
   5.2 Direct mode teleservices
   5.3 Direct mode bearer services
   5.4 Intrinsic services
6 Description of direct mode equipment types
   6.1 General
   6.2 Direct mode mobile station (DM-MS)
   6.3 Dual watch mobile station (DW-MS)
   6.4 Direct mode repeater (DM-REP)
   6.5 Direct mode gateway (DM-GATE)
   6.6 Direct mode repeater/gateway combination (DM-REP/GATE)
   6.7 Direct mode power classes
   6.8 Limitations imposed by the physical layer for direct
         mode type equipment
7 Direct mode operational examples
   7.1 General
   7.2 MS to MS communication with full Dual Watching
   7.3 DMO communication via a repeater with full Dual Watching
   7.4 Gateway operation
   7.5 Direct mode repeater/gateway operation
8 Outline of direct mode protocols
   8.1 OSI reference model
   8.2 TDMA frame and slot structure for direct mode
         operation
   8.3 Physical layer functionality
   8.4 Single call protocols
   8.5 Two call protocols
   8.6 Choosing the repeater type
   8.7 Co-existence with trunked mode
   8.8 Co-existence with direct mode MS-MS operation
   8.9 Direct mode frequency re-use
   8.10 Implementation and operation issues affecting dual watch
   8.11 Channel surveillance
   8.12 Battery economy
   8.13 Testable boundaries
9 Security features
   9.1 General
   9.2 Authentication
   9.3 Confidentiality
   9.4 Key Management
10 Radio Aspects
   10.1 DMO deployment constraints
   10.2 Transmitter noise
   10.3 Blocking
   10.4 Effects of transmitter noise and blocking
   10.5 Methodology
   10.6 Example 1 - wanted signal at extremity of range,
         unwanted interferer close by
   10.7 Example 2 - wanted signal at close range, unwanted
         interferer close by
   10.8 Unwanted transmission noise versus blocking
   10.9 Variation of stay-away distance with transmitter
         power and frequency separation
   10.10 Effect of assumptions
   10.11 Implementation issues
   10.12 Recommended frequency separation for DMO MS-MSs
11 Operational scenarios
   11.1 Range extension scenario using type 1A repeater
   11.2 Range extension scenarios using a gateway
   11.3 DMO range extension scenario with link into TMO
         Dispatcher using a type 1B repeater/gateway
   11.4 DMO range extension scenario with link into TMO
         Dispatcher using a gateway
   11.5 Range extension inside buildings using a type 2
         repeater
Annex A: Teleservices, bearer and supplementary services
         supported by TMO/DMO
Annex B: Short range propagation models used in the
         co-existence studies
      B.1 Introduction
      B.2 Free space propagation
      B.3 Bacon model
      B.4 CEPT SE21 model
      B.5 Discussion
Annex C: Trial results for short range propagation model and
         comparison between theoretical and measured stay-away
         distances
      C.1 Introduction
      C.2 Results of the trials
      C.3 Assumptions of the theoretical calculations
      C.4 Propagation model
      C.5 Losses between receiver and transmitters
      C.6 Reduction in voice quality
      C.7 Measured transmitter losses at the Newbury Racecourse
           trials and the decreased margin
      C.8 The assumption of linearity
      C.9 Conclusions and discussion
      C.10 Quantitative assessment
Annex D: RF channel selection, numbering and addressing
      D.1 Background
      D.2 Numbering
      D.3 Addressing in repeater and gateway direct mode operation
      D.4 Summary
Annex E: Detailed direct mode protocols
      E.1 General
      E.2 MS-MS direct mode normal operation
      E.3 Repeater Type 1A
      E.4 Repeater Type 1B
      E.5 Gateway
      E.6 Repeater/Gateway Type 1A
      E.7 Repeater/Gateway Type 1B
      E.8 MS-MS frequency efficient operation
      E.9 Repeater Type 2
Annex F: Support of security features
      F.1 Time Variant Parameter
      F.2 Synchronization of end-to-end encryption
History