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Review of Ultrawide Band Issues Presentation to FCC TAC by Dewayne Hendricks 12/13/99

Review of Ultrawide Band Issues Presentation to FCC TAC by Dewayne Hendricks 12/13/99. Topics. Review of regulatory history Discussion of current problem Recomendations. Definition. Will use term ‘wideband emissions’ or ‘wideband technologies’ (WB) instead of ultra-wideband (UWB)

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Review of Ultrawide Band Issues Presentation to FCC TAC by Dewayne Hendricks 12/13/99

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  1. Review of Ultrawide Band IssuesPresentation to FCC TACbyDewayne Hendricks12/13/99 dandingroup

  2. Topics Review of regulatory history Discussion of current problem Recomendations dandingroup

  3. Definition Will use term ‘wideband emissions’ or ‘wideband technologies’ (WB) instead of ultra-wideband (UWB) WB includes Spread Spectrum (SS) dandingroup

  4. WB Regulatory Path 1981 NOI Part 15 Part 97 (Amateur Radio Service) UWB NOI dandingroup

  5. SS NOI ‘81 First to raise issues of narrowband vs wideband Discussed the concept of ‘spectrum overlay’ Discussed the spectrum efficiency issues of wideband vs narrowband dandingroup

  6. UWB NOI ‘98 Driven by waiver requests from UWB companies Many of the same issues and questions raised as in SS NOI Proposed to operate under Part 15, but asked for alternatives dandingroup

  7. Part 15 (Unlicensed SS) NPRM in 1984 R&O in 1985 Various rulemakings up thru 1999 dandingroup

  8. Part 97 (ARS SS) NPRM in 1984 R&O in 1985 STA in 1992 Petition for rulemaking in 1995 NPRM in 1997 R&O in 1999 dandingroup

  9. Part 15 Issues Very successful to date, but no idea as to how many devices and where “Tradegy of Commons’ and noise floor Sharing band with licensed services Growing use of devices for Internet access dandingroup

  10. Part 97 Issues More restrictive rules until this year Repeater interference Weak signal and EME interference Need different allocation for WB experimentation and use dandingroup

  11. Summary Spectrum overlay is really the key issue How are existing services accomodated Only way to move forward is to deploy real systems in controlled fashion and test and measure impacts dandingroup

  12. Powered Flight Analogy First looked at flying animals Next tried lighter than air Next tried heavier than air Wright Brothers flight confirmed new direction WB has yet to have its successful test flight dandingroup

  13. Recommended Actions (1) Compile on-line database of most relevant filings on WB over the years at the Commission SDR and WB are tightly coupled, some implementors will use both Examine issue where licensed service wants to employ WB for spectrum overlay, such as ARS dandingroup

  14. Recommended Actions (2) Find and deploy in regulatory environments where there are currently no restrictions against WB operations Move to controlled test bed tests as the industry starts to work out the issues and determine what it really wants to do dandingroup

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