超宽带小组委员会中期报告

9 December 2022 Overview: NTIA’s Charge to theSubcommittee •An increasing number of wireless devices employ Ultra-Wideband (UWB),a radio-based communication technology for short-range datatransmission, mainly using pulse or impulse modulated waveforms. UWB isoften used in location and distance measurements. Since the inception ofthe rules, an increasing number of wireless devices are employing UWB athigher frequency ranges. The NTIA Redbook mirrors the FCC’s rules forUltra-Wideband. With greater UWB use, more potential users haveapproached the FCC with waiver requests, which are then coordinatedbetween FCC and NTIA. •NTIA is increasingly concerned that while a single waiver request mayaddress a minor deviation from the UWB rules, when taken in aggregate,the waiver requests may result in de facto changes to the UWB rules thatcan potentially impact federal users. Questions Presented by NTIA •What recommendations can the CSMAC make for NTIA to consider interms of potential modifications to the UWB rules that wouldincrease usage while adequately protecting incumbent services,including critical federal systems?As an initial matter, is it possibleto make changes to the rules governing UWB operation in federalgovernment bands without the FCC making similar changes to itsrules or would any changes need to be made in coordination withthe FCC? What areas of minor potential changes could be exploredsuch as power limits, definitions, or application categories, includingharmonizing to many international regulations? Could NTIA modifysome restrictions or include new ones or expand existing frequencybands? UWB Subcommittee •Edward Drocella (NTIA Sr. PrincipalContact)•April Lundy (NTIA Principal Contact)•Jennifer Manner (CSMAC Co-Chair)•Jessica Quinley (FCC Liaison)•Charla Rath (CSMAC Co-Chair)•Antonio Richardson (DesignatedFederal Officer) •Reza Arefi•Hilary Cain•Michael Calabrese•Tom Dombrowsky•Mark Gibson•Dale Hatfield•Paul Margie (Co-Chair)•Karl Nebbia•Dennis Roberson (Co-Chair)•Mariam Sorond•Bryan Tramont•Jennifer Warren 12 Meetings Held / SME Presentations •UWB Alliance – Tim Harrington•Fira - Dries Neirynck•NXP - Riku Pirhonen•ETSI, CEPT/EU - Dr. Michael Mahler•UWB Waiver Research – Stacey Weber•UWB Waiver IRAC Coordination – Ed Drocella UWB Waivers PetitionsLandscape2012 – 2022 Basic DataCharacteristicsTrends Basic Data on Waiver Requests Basic Data Rules Waivers Most Often Address Characteristics of UWB Technologies at Issuein Waivers Safety & Infrastructure Medical Uses •Imaging/diagnostic devices•Body-worn devices•Environmental safety •Construction•Building inspection•Highways/bridges•Threat detection Consumer Products •Vehicles/autonomous vehicles•Door locks•Other (e.g., autonomous lawnmower) Waiver Trends •2-4 waiver requests/year; slowly increasing•Rule amendments/pressure•FCC considers whether a waiver is similar to an already-grantedwaiver•Limited but consistent opposition•Rise of IoT/consumer devices•Most waiver requests include geographic limits and/or limits onnumber of devices Background and Subcommittee Observations •There has been substantial change in UWB use cases since FCC adopted rules •FCC initially expected UWB would be used for communications/wireless networking technology, as well asfor wall/ground penetrating devices.•Today, low-power, secure, precision location and sensing-related applications are driving UWB innovation,not communications and wireless networking.•Wall/ground penetrating devices remain important. •FCC rules have not changed, but technology, the direction of innovation, anduse cases have changed—leading to waiver requests•Waiver requests create substantial resource challenges for NTIA. •Waiver process creates substantial delay and uncertainty for the UWB industry. •UWB device volume has grown substantially—this happened far slower thanexpected but is now here •European UWB use is much greater, and the regulatory environment is muchdifferent than that of the U.S. UWB Waivers: Numbers and Challenges •UWB industry experience:•UWB companies find the FCC/NTIA waiver process opaque and complex, especially for start-up companies.•Waiver applicants report delay, confidentiality, and information request challenges.•UWB device and system providers would prefer an FCC rulemaking to the currentwaiver approach. •NTIA finds the information in the waivers often insufficient to assess impact onfederal users.•UWB waivers are more complex (see next slide)•The number of agencies involved given the frequency bands covered also adds to thecomplexity.•NTIA gets little notice from FCC before a coordination request arrives. Technology Shift Based UWB Waiver Requests •Use of fixed infrastructure (or even temporary or nomadic infrastructure)•E.g., perimeter identifiers, active rail line infrastructure. •Outdoor operations•E.g., external building door locks. •Increased power levels•Indoor, but also Outdoor. •Alternative waveforms•Studies focused on impulse vs. new