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ULTRA-WIDEBAND (UWB) A POSSIBLE AREA FOR STANDARDS

ULTRA-WIDEBAND (UWB) A POSSIBLE AREA FOR STANDARDS. BILL LUTHER FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 2003. ULTRA-WIDEBAND ISSUES. INTRODUCTION APPLICATIONS WHAT IS UWB? DECISIONS EMISSION STANDARDS REGULATIONS INTERFERENCE CONCERNS STUDIES. INTRODUCTION.

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ULTRA-WIDEBAND (UWB) A POSSIBLE AREA FOR STANDARDS

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  1. ULTRA-WIDEBAND (UWB) A POSSIBLE AREA FOR STANDARDS BILL LUTHER FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 2003

  2. ULTRA-WIDEBANDISSUES • INTRODUCTION • APPLICATIONS • WHAT IS UWB? • DECISIONS • EMISSION STANDARDS • REGULATIONS • INTERFERENCE CONCERNS • STUDIES

  3. INTRODUCTION • UWB TECHNOLOGY HAS BEEN IN LIMITED USE FOR YEARS BY PUBLIC SERVICE, RESEARCH, AND MILITARY AGENCIES, PRIMARILY FOR IMAGING AND RADAR (PROBABLY GLOBALLY) • CONSUMER UWB DEVICES ARE BEING DEVELOPED FOR WIRELESS COMMUNICATIONS AND OTHER APPLICATIONS, AND COULD BECOME WIDESPREAD

  4. PROPOSED APPLICATIONS • GROUND-PENETRATING RADARS (PUBLIC SAFETY, ARCHEOLOGICAL, CIVIL ENGINEERING, EARTHQUAKE, etc.) • THROUGH-WALL RADAR FOR PUBLIC SAFETY AND CONSTRUCTION • EMERGENCY MOTION AND IMAGING • HIGH-PERFORMANCE MICROPHONES • LOCAL AREA VOICE, DATA, AND VIDEO NETWORKS • SECURITY DEVICES • COLLISION AVOIDANCE AND AIRBAG SENSORS • FLUID LEVEL DETECTION • SHORT-RANGE CLANDESTINE COMMUNICATIONS • LONG-RANGE MILITARY COMMUNICATIONS • IDENTIFICATION AND LOCATION TAGS UNLICENSED AND COULD BECOME UBIQUITOUS IN THE UNITED STATES

  5. WHAT IS UWB? UWB SIGNAL DEFINITION: • THE FRACTIONAL BANDWIDTH IS GREATER THAN 20% OF THE CENTER FREQUENCY, OR • THE -10 DB BANDWIDTH OCCUPIES 500 MHz OR MORE OF SPECTRUM

  6. FRACTIONAL BANDWIDTH FRACTIONAL BW = 2(Fh - Fl)/(Fh + Fl) WHERE Fh = HIGHEST FREQUENCY LIMIT WITH SIGNAL 10 dB BELOW PEAK EMISSION Fl = LOWEST FREQUENCY LIMIT WITH SIGNAL 10 dB BELOW PEAK EMISSION Fc = CENTER FREQUENCY = (Fh + Fl)/2

  7. UWB MONOCYCLE TIME AND FREQUENCY DOMAINS

  8. FCC DECISIONS FEBRUARY 14, 2002: FCC GAVE UWB REGULATORY STATUS AFTER - • EXHAUSTIVE NPRM • EXTENSIVE CONSULTATIONS WITH THE U.S. DOD • NEGOTIATIONS WITH DEPARTMENT OF COMMERCE (NTIA), AND OTHER AGENCIES

  9. FCC DECISIONS JULY 12, 2002: FCC CLARIFIED - • GROUND PENETRATING RADAR (GPR) AND WALL IMAGING WAIVER AND REGISTRATION RULES • ACCOMMODATION OF EXISTING DEVICES WHILE ENSURING THAT AUTHORIZED RADIO SERVICES ARE PROTECTED FROM HARMFUL INTERFERENCE

  10. FCC DECISIONS FEBRUARY 13, 2003: ON RECON FCC AGAIN AFFIRMED ITS UWB REGULATIONS WHILE CLARIFYING FURTHER - • LIMITS AND OPERATION OF GPR AND WALL IMAGING SYSTEMS • COORDINATION REQUIREMENTS • EMISSION LIMITS PRODUCED BY UWB CIRCUITS

  11. Part 15 = -41.3 dBm/MHz U.S. LIMITS -75.3 dBm/MHz

  12. Part 15 = -41.3 dBm/MHz U.S. LIMITS -75.3 dBm/MHz

  13. Preliminary DIFFERENCE IS 34 dB Part 15 = -41.3 dBm/MHz 34 dB 1.91 GHz 3.1 GHz 10.6 GHz -75.3 dBm/MHz 960 MHz 1.61 GHz

  14. 10 dB Stronger Part 15 = -41.3 dBm/MHz U.S. LIMITS -65.3 dBm/MHz

  15. 20 dB Stronger Part 15 = -41.3 dBm/MHz U.S. LIMITS -53.3 dBm/MHz

  16. REGULATIONS • WITHIN THE U.S. CODE OF FEDERAL REGULATIONS: (TITLE 47 – TELECOMMUNICATIONS), FCC PART 15, “RADIO FREQUENCY DEVICES,” SUBPART F – UWB OPERATION • WITHIN THE INTERNATIONAL TELECOMMUNICATION UNION RADIO REGULATIONS: (ARTICLE 4 – ASSIGNMENT AND USE OF FREQUENCIES), PARAGRAPH 4.4

  17. STUDIES UWB IS UNDER STUDY WITHIN THE ITU-RADIOCOMMUNICATION SECTOR’S SPECTRUM MANAGEMENT GROUP WHICH HAS CREATED ITU-WIDE TASK GROUP (TG) 1/8 FOR THAT PURPOSE • TG 1/8 will coordinate its own studies as well as those received from other groups within the ITU.

  18. STUDIES UWB TASK GROUP 1/8 MEETS NEXT IN GENEVA, SWITZERLAND OCTOBER 27 - 31, 2003 (MONDAY – FRIDAY) (STUDIES ARE UNDERWAY AND CONTROVERSIAL)

  19. FCC UWB STUDIESCONTINUE • MEASUREMENTS OF MARKETED DEVICES • OPERATION OF LOW PRF SYSTEMS (VEHICULAR RADARS) • FREQUENCY HOPPING RADARS • CONCERNS OF INTERFERENCE INCLUDING AGGREGATE EFFECTS

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