IEEE Std 802.16.2™-2004 Coexistence of Fixed Broadband Wireless Access Systems -Description

Abstract: This recommended practice provides recommendations for the design and coordinated deployment of fixed broadband wireless access systems in order to control interference and facilitate coexistence. It analyzes appropriate coexistence scenarios and provides guidance for system design, deployment, coordination, and frequency usage. It generally addresses licensed spectrum between 2 GHz and 66 GHz, with a detailed emphasis on 3.5 GHz, 10.5 GHz, and 23.5 – 43.5 GHz.

Keywords: coexistence, fixed broadband wireless access (FBWA), interference, local multipoint distribution service (LMDS), millimeter waves, multichannel multipoint distribution service (MMDS), microwaves, multipoint (MP), point-to-multipoint (PMP), radio, wireless metropolitan area network (WirelessMAN™) standard

Content

• 1. Overview
• • 1.1 Scope
  • 1.2 Purpose
• 2. Normative references
• 3. Definitions and Abbreviations
• • 3.1 Definitions
  • 3.2 Abbreviations
• 4. System overview
• • 4.1 System architecture
  • • 4.1.1 PMP systems
    • 4.1.2 Mesh systems
    • 4.1.3 Antenna subsystems
  • 4.2 Interference scenarios
  • • 4.2.1 Forms of interference
    • 4.2.2 Acceptable level of interference
    • 4.2.3 Interference paths
• 5. Coexistence of FBWA systems in 23.5 GHz – 43.5 GHz
• • 5.1 Introduction
  • 5.2 Recommendations
  • • 5.2.1 Recommendation 1-1
    • 5.2.2 Recommendation 1-2
    • 5.2.3 Recommendation 1-3
    • 5.2.4 Recommendation 1-4
    • 5.2.5 Recommendation 1-5
    • 5.2.6 Recommendation 1-6
    • 5.2.7 Recommendation 1-7
    • 5.2.8 Recommendation 1-8
    • 5.2.9 Recommendation 1-9
    • 5.2.10 Recommendation 1–10
  • 5.3 Suggested guidelines for geographical and frequency spacing
  • 5.4 Medium overview
  • 5.5 Equipment design parameters
  • • 5.5.1 Transmitter design parameters
    • 5.5.2 Receiver design parameters
  • 5.6 Deployment and coordination
  • • 5.6.1 CoCh/adjacent-area case
    • 5.6.2 Same-area/adjacent-frequency case
    • 5.6.3 Use of psfd as a coexistence metric
    • 5.6.4 Deployment procedure
  • 5.7 Interference and propagation evaluation/examples of coexistence in a PMP environment
  • • 5.7.1 Guidelines for geographical and frequency spacing between FBWA systems
  • 5.8 Mitigation techniques
  • • 5.8.1 General
    • 5.8.2 Frequency band plans
    • 5.8.3 Service area demarcation
    • 5.8.4 Separation distance/power
    • 5.8.5 Co-siting of BSs
    • 5.8.6 Coexistence with PTP systems
    • 5.8.7 Antennas
    • 5.8.8 Blockage
    • 5.8.9 Signal processing
    • 5.8.10 Receiver sensitivity degradation tolerance
    • 5.8.11 Subscriber Tx lock to prevent transmissions when no received signal present
• 6. Coexistence of FBWA systems with PTP links in 23.5 GHz – 43.5 GHz
• • 6.1 Recommendations and guidelines
  • • 6.1.1 Recommendation 2-1
    • 6.1.2 Recommendation 2-2
    • 6.1.3 Recommendation 2-3
    • 6.1.4 Recommendation 2-4
    • 6.1.5 Recommendation 2-5
    • 6.1.6 Recommendation 2-6
  • 6.2 Suggested guidelines for geographical and frequency spacing
  • 6.3 System overview (interferer and victim systems)
  • • 6.3.1 Interference scenario 1: multiple PTP links in a frequency block
    • 6.3.2 Interference scenario 2: individually licensed links
    • 6.3.3 System parameters assumed in the simulations
    • 6.3.4 Antenna parameters
    • 6.3.5 Comparison of the composite RPE to standards
  • 6.4 Interference scenarios
  • • 6.4.1 Acceptable level of interference
    • 6.4.2 Interference paths
  • 6.5 Equipment design parameters
  • 6.6 Deployment and coordination between PMP and PTP systems
  • • 6.6.1 CoCh/adjacent-area case
    • 6.6.2 Same-area/adjacent-frequency case with individually planned static links
    • 6.6.3 Example calculations
    • 6.6.4 Considerations for deployment
    • 6.6.5 Same-area/adjacent-frequency case with multiple PTP link systems operating dynamically
  • 6.7 Description of interference evaluation and example scenarios
  • • 6.7.1 Interference mechanisms
    • 6.7.2 Simulations and calculations
    • 6.7.3 Results of the analysis
    • 6.7.4 CoCh cases
  • 6.8 Mitigation techniques for coexistence between FBWA and PTP systems
  • • 6.8.1 Impact of buildings and terrain on CoCh interference
    • 6.8.2 Simulation results
    • 6.8.3 Conclusions
• 7. Coexistence of FBWA systems operating in 2–11 GHz licensed bands
• • 7.1 Introduction
  • 7.2 Recommendations
  • • 7.2.1 Recommendation 3-1
    • 7.2.2 Recommendation 3-2
    • 7.2.3 Recommendation 3-3
    • 7.2.4 Recommendation 3-4
    • 7.2.5 Recommendation 3-5
    • 7.2.6 Recommendation 3-6
    • 7.2.7 Recommendation 3-7
  • 7.3 Suggested guidelines for geographical and frequency spacing
  • 7.4 System description (interferer and victim systems)
  • • 7.4.1 System parameters assumed in the simulations
    • 7.4.2 Medium overview
    • 7.4.3 Interference scenarios
  • 7.5 Deployment and coordination
  • • 7.5.1 Co-frequency/adjacent-area case
    • 7.5.2 Same-area/adjacent-frequency case
  • 7.6 Coexistence of PMP networks
  • • 7.6.1 Interference mechanisms
    • 7.6.2 Worst-case analysis
    • 7.6.3 Monte Carlo simulations
    • 7.6.4 Other methods
    • 7.6.5 Simulations and calculations
  • 7.7 Coexistence of mesh networks
  • • 7.7.1 CoCh intercell interference in a large-scale network
    • 7.7.2 CoCh internetwork interference between adjacent areas
    • 7.7.3 AdjCh intercell interference in a large-scale network
    • 7.7.4 AdjCh internetwork interference between adjacent areas
    • 7.7.5 AdjCh internetwork interference within the same area
  • 7.8 Mitigation techniques
  • • 7.8.1 AA techniques
    • 7.8.2 Other characteristics of AAs
• Annex A Bibliography
• Annex B Additional material for FBWA systems from 23.5 GHz – 43.5 GHz
• • B.1 Test and measurement/hardware parameter summary
  • • B.1.1 Testing of unwanted emissions
    • B.1.2 Measuring frequency stability
    • B.1.3 European conformance test standards
  • B.2 Calculations of psfd
  • • B.2.1 In the 20–30 GHz range
    • B.2.2 In the 38–43.5 GHz range
  • B.3 Description of calculations and simulation methods
  • • B.3.1 SS-to-BS adjacent-area/same-frequency case
    • B.3.2 BS-to-SS same-area/adjacent-frequency case
    • B.3.3 SS-to-BS same-area/adjacent-frequency case
    • B.3.4 BS-to-SS same-area/AdjCh case, IA method
    • B.3.5 SS-to-SS same-area/AdjCh case, TDD only
    • B.3.6 SS-to-SS CoCh/adjacent-area case (TDD)
    • B.3.7 SS-to-BS CoCh/adjacent-area case
    • B.3.8 BS-to-BS CoCh case with multiple interferers
    • B.3.9 Mesh-to-PMP-BS CoCh/adjacent-area case
    • B.3.10 Mesh-to-PMP-SS CoCh/adjacent-area case
    • B.3.11 Mesh-to-PMP-BS same-area/adjacent-frequency case
    • B.3.12 Mesh-to-PMP-SS same-area/adjacent-frequency case
    • B.3.13 General scenario: same-area/adjacent-frequency case
  • B.4 Work of other bodies
  • • B.4.1 ETSI Working Party TM4
    • B.4.2 Industry Canada (IC)
    • B.4.3 Radio Advisory Board of Canada (RABC)
    • B.4.4 UK Radiocommunications Agency (UK-RA)
    • B.4.5 European Conference of Postal and Telecommunication Administrations/European Radiocommunications Committee (CEPT/ERC)
  • B.5 UK-RA coordination process
  • • B.5.1 Introduction
    • B.5.2 Coordination triggers
    • B.5.3 Application of the coordination distance and psfd triggers
    • B.5.4 Trigger values
    • B.5.5 Worst-case interferer calculations
    • B.5.6 Parameter values used for trigger derivation and simulations
  • B.6 IC coordination process
  • B.7 ICL
  • • B.7.1 Description
    • B.7.2 NFD
    • B.7.3 Isolation
• Annex C Additional material for FBWA with PTP systems from 23.5 GHz – 43.5 GHz
• • C.1 Sample 38 GHz psfd calculations
  • • C.1.1 38 GHz: PMP BS Tx into victim PTP link
    • C.1.2 38 GHz: PTP link Tx into victim PMP BS and victim PTP link
  • C.2 Calculations and simulation methods for PMP-to-PTP interference
  • • C.2.1 PMP-BS/SS-to-PTP-link adjacent-area/same-channel case
    • C.2.2 PTP-link-to-PMP-BS/SS adjacent-area/same-channel case
    • C.2.3 PMP-BS/SS-to/from-PTP-link same-area/AdjCh case
    • C.2.4 PMP-BS/SS-to-multiple-PTP-link-system adjacent-area/same-channel case
    • C.2.5 Results when the BS is the interferer
    • C.2.6 Results when the SS is the interferer
    • C.2.7 Impact of buildings and terrain
    • C.2.8 Multiple-PTP-link-system-into-PMP-system adjacent-area/CoCh case
    • C.2.9 PMP-system-into-multiple-PTP-link-system same-area/AdjCh case
    • C.2.10 Multilink-PTP-system-into-PMP-system same-area/AdjCh case
• Annex D Additional material for FBWA systems in 2–11 GHz licensed bands
• • D.1 Sample 3.5 GHz psfd calculations
  • • D.1.1 Thresholds
    • D.1.2 PMP BS into victim PMP SS
  • D.2 Description of calculations and simulation methods
  • • D.2.1 Description of simulation parameters
    • D.2.2 Adjacent-area/same-frequency case
    • D.2.3 Inbound SS-to-BS interference
    • D.2.4 BS-to-BS interference
    • D.2.5 SS-to-SS interference
    • D.2.6 Same-area/adjacent-frequency case
  • D.3 Interference-mitigating effects of AAs
  • • D.3.1 Inbound SS-to-BS interference with AA at the BS

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