TR 101 904 : 1.1.1
Current
The latest, up-to-date edition.
TRANSMISSION AND MULTIPLEXING (TM); TIME DIVISION DUPLEX (TDD) IN POINT-TO-MULTIPOINT (P-MP) FIXED WIRELESS ACCESS (FWA) SYSTEMS; CHARACTERISTICS AND NETWORK APPLICATIONS
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English
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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
Covers the issues on the application of Time Division Duplex (TDD) in the Fixed Service bands for Fixed Wireless Access (FWA) Point-to-Multipoint (P-MP) applications.
| Committee |
TM 4
|
| DocumentType |
Standard
|
| Pages |
57
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| TR 102 328 : 1.1.1 | FIXED RADIO SYSTEMS; MULTIPOINT EQUIPMENT; REPORT ON FIXED WIRELESS ACCESS SYSTEMS WHICH APPLY MESH TOPOLOGY AND OPERATE IN APPLICABLE FIXED SERVICE BANDS WITHIN THE 3 GHZ TO 11 GHZ RANGE |
| TR 102 073-1 : 1.1.1 | FIXED RADIO SYSTEMS; DEPLOYMENT CONSIDERATIONS FOR TDD FIXED WIRELESS ACCESS (FWA) SYSTEMS; AUTONOMOUS FREQUENCY ASSIGNMENT (AFA); PART 1: PROOF OF CONCEPT SIMULATION |
| EN 301 080 : 1.3.1 | FIXED RADIO SYSTEMS; POINT-TO-MULTIPOINT EQUIPMENT; FREQUENCY DIVISION MULTIPLE ACCESS (FDMA); POINT-TO-MULTIPOINT DIGITAL RADIO SYSTEMS IN FREQUENCY BANDS IN THE RANGE 3 GHZ TO 11 GHZ |
| TR 101 370 : 1.1.1 | DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT) - IMPLEMENTING DECT FIXED WIRELESS ACCESS (FWA) IN AN ARBITRARY SPECTRUM ALLOCATION |
| EN 301 179 : 1.2.1 | TRANSMISSION AND MULTIPLEXING (TM); DIGITAL RADIO RELAY SYSTEMS (DRRS); FREQUENCY HOPPING CODE DIVISION MULTIPLE ACCESS (FH-CDMA); POINT-TO-MULTIPOINT DRRS IN THE BANDS WITHIN THE RANGE 1 GHZ TO 3 GHZ |
| EN 301 213-1 : 1.1.2 | FIXED RADIO SYSTEMS; POINT-TO-MULTIPOINT EQUIPMENT; POINT-TO-MULTIPOINT DIGITAL RADIO SYSTEMS IN FREQUENCY BANDS IN THE RANGE 24,25 GHZ TO 29,5 GHZ USING DIFFERENT ACCESS METHODS; PART 1: BASIC PARAMETERS |
| TR 101 853 : 1.1.1 | FIXED RADIO SYSTEMS; POINT-TO-POINT AND POINT-TO-MULTIPOINT EQUIPMENT; RULES FOR THE CO-EXISTENCE OF POINT-TO-POINT AND POINT-TO-MULTIPOINT SYSTEMS USING DIFFERENT ACCESS METHODS IN THE SAME FREQUENCY BAND |
| EN 301 055 : 1.4.1 | TRANSMISSION AND MULTIPLEXING TM - DIGITAL RADIO RELAY SYSTEMS (DRRS) - DIRECT SEQUENCE CODE DIVISION MULTIPLE ACCESS (DS-CDMA) - POINT-TO-MULTIPOINT DRRS IN FREQUENCY BANDS IN THE RANGE 1 GHZ TO 3 GHZ |
| EN 301 021 : 1.6.1 | FIXED RADIO SYSTEMS; POINT-TO-MULTIPOINT EQUIPMENT; TIME DIVISION MULTIPLE ACCESS (TDMA); POINT-TO-MULTIPOINT DIGITAL RADIO SYSTEMS IN FREQUENCY BANDS IN THE RANGE 3 GHZ TO 11 GHZ |
| EN 301 253 : 1.2.1 | FIXED RADIO SYSTEMS; POINT-TO-MULTIPOINT EQUIPMENT; FREQUENCY HOPPING CODE DIVISION MULTIPLE ACCESS (FH-CDMA); POINT-TO-MULTIPOINT DIGITAL RADIO SYSTEMS IN FREQUENCY BANDS IN THE RANGE 3 GHZ TO 11 GHZ |
| EN 301 460-1 : 1.1.1 | FIXED RADIO SYSTEMS; POINT-TO-MULTIPOINT EQUIPMENT; PART 1: POINT-TO-MULTIPOINT DIGITAL RADIO SYSTEMS BELOW 1 GHZ - COMMON PARAMETERS |
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