TR 101 904 : 1.1.1

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Time Division Duplexing in Fixed Wireless Access
  Systems
  4.1 Fixed Wireless Access Systems
  4.2 The TDD technique
  4.3 Attributes of TDD
5 Deployment issues of P-MP FWA systems
  5.1 Typical P-MP FWA regulatory regime
  5.2 How FWA differs from P-P and Cellular Mobile
      systems
6 The interference scenarios
  6.1 Coexistence issues for FDD and TDD P-MP
      systems
  6.2 Interference scenarios between P-MP and P-P
      systems
  6.3 The interference problem in adjacent frequency
      bands
  6.4 The overlapping cell problem
  6.5 A view of FDD/FDD versus FDD/TDD scenarios
  6.6 Interference scenarios and results
  6.7 Mitigation of interference
  6.8 The differing views on interference scenarios
7 Parameters for TDD systems
  7.1 Classification of TDD types and synchronization
      issues
  7.2 Suppliers' Declarations related to TDD
  7.3 Out of band aspects
  7.4 System Capacity
  7.5 Duplex spacing
  7.6 Summary
8 Conclusions and proposed way ahead
  8.1 General conclusions
  8.2 Way ahead for TDD in TM4 P-MP standards
Annex A (normative): Spectrum Planning for mixed P-MP
        & P-P, and FDD & TDD systems
A.1 Introduction
A.2 Interference issues of FDD and TDD, mixed P-MP
    and P-P systems
A.3 Summary
Annex B (normative): Various types of Time Division
        Duplexing
Annex C (normative): Some spectrum engineering and
        site engineering considerations
C.1 Means of mitigating effects of interference
    between systems operating in same band
C.2 Some issues for consideration by frequency
    planners
C.3 CEPT SE19 Guidelines
Annex D (normative): Extracts from "Draft ERC Report
        on Fixed Wireless Access (FWA) spectrum
        engineering and frequency management
        guidelines (qualitative)"
D.1 Introduction
D.2 Frequency allocation guidance
D.3 Frequency planning
D.4 TDD assignments in bands with paired spectrum
Annex E (normative): The overlapping cell problem
E.1 Description of the problem
E.2 TS to TS interference
E.3 TS to CRS interference
E.4 Conclusion on TS to TS interference when one
    system is a TDD system
Annex F (normative): The interference problem in
        adjacent frequency bands: a quantitative
        analysis
F.1 Methodology
F.2 Formulae and Variable Description
F.3 Calculation of Losses due to modulation masks
    and out-of-band filtering
F.4 Other Considerations
F.5 System Parameters and Analysed scenarios
F.6 Calculation Assumptions
F.7 Quantitative conclusions
History