Page 3 - GuideFWA

GUIDE ON RESULTS OF THE CITEL STUDY TO QUANTIFY ISSUES OF
INCOMPATIBILITY BETWEEN FWA AND PCS ON THE 1850-1990 MHz BAND

TABLE OF CONTENTS

FOREWORD OF THE CHAIR OF THE PERMANENT CONSULTATIVE COMMITTEE III:
RADIOCOMMUNICATION ...............................................................................................................................................VII
MESSAGE OF THE CHAIR OF THE WORKING GROUP TO QUANTIFY ANY INCOMPATIBILITY
ISSUES BETWEEN FWA AND PCS IN THE RANGE 1850-1990 MHZ..............................................................................VIII

PART 1.............................................................................................................................................................................1

EXECUTIVE SUMMARY OF THE REPORT OF THE PCC.III INTERFERENCE EXPERTS GROUP
ON INCOMPATIBILITY ISSUES BETWEEN FWA AND PCS SYSTEMS ........................................................................................3
1. INTRODUCTION.....................................................................................................................................................4

1.1. Objective ...................................................................................................................................................4
1.2. Scope.........................................................................................................................................................4
1.3. Background ...............................................................................................................................................4
2. PCS-PCS AND PCS-FWA CASE..........................................................................................................................4
2.1. Methodology and Parameters ...................................................................................................................4

2.1.1. Methodology ........................................................................................................................................5
2.1.2. Formulae and Variable Description......................................................................................................6

2.1.2.1 Transmitter Path .........................................................................................................................6
2.1.2.2 Receiver path ..............................................................................................................................7
2.1.2.3 Propagation Model .....................................................................................................................7
2.1.2.4 Formulae.....................................................................................................................................8
2.1.3. Probability Estimation..........................................................................................................................9
2.1.4. Other Considerations............................................................................................................................9
2.2. System Description and Parameters .......................................................................................................10
2.2.1. Frequency data ...................................................................................................................................10
2.2.2. Transmitter and Receiver Data ...........................................................................................................11
2.2.3. Antenna and Feeder Parameters .........................................................................................................12
2.2.4. Transmitter modulation masks ...........................................................................................................13
2.2.4.1 PCS-1900 .................................................................................................................................13
2.2.4.2 IS-95 CDMA ............................................................................................................................14
2.2.4.3 IS-136 TDMA...........................................................................................................................14
2.2.4.4 DECT........................................................................................................................................15
2.2.4.5 PHS...........................................................................................................................................16
2.2.5. Adjacent frequency bands ..................................................................................................................16
2.3. Results .....................................................................................................................................................19
2.3.1. Results of the quantitative calculation of required distances in the interference

analysis between PCS and/or FWA applications ...............................................................................19
2.3.2. Minimum Distances for 1 dB of the Rise in the Noise Floor .............................................................20

2.3.2.1 Assuming that fading is included in calculations......................................................................20
2.3.2.2 Assuming that fading is removed from calculation...................................................................21
2.3.3. Minimum Required Path Loss (dB) for 1 dB in Rise in the Noise Floor ...........................................22
2.3.3.1 Assuming that fading is included in calculations......................................................................22
2.3.3.2 Assuming that fading is removed from calculation...................................................................23
3. COEXISTENCE ANALYSIS BETWEEN UNLICENSED PCS AND FWA TDD APPLICATIONS
WITHIN THE 1910-1930 MHZ BAND ....................................................................................................................24
4. DISCUSSION / SUMMARY ....................................................................................................................................24
4.1. Introduction ............................................................................................................................................24
4.2. How to Read the Tables ..........................................................................................................................25
4.3. Issues associated with mobility (no mobility assumption) ......................................................................25
4.4. Co-located PCS Base Stations ................................................................................................................25
4.5. Near-far interference ..............................................................................................................................26
4.6. Remaining Issues.....................................................................................................................................27
4.6.1. ‘DECT Proponents’............................................................................................................................27
4.6.1.1 Probabilities..............................................................................................................................27

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