FCC Update by alicejenny


									TV Bands Database Administrators

       Implementation Update
              February 14, 2012
       (includes updates as of April 5, 2012)

                          FCC Office of Engineering and Technology
•   Welcome
•   WSDBA Update
•   FCC Update - General Issues
•   Database-to-database synchronization
•   Key Bridge Global’s strategy for database-to-
     database synchronization
•   Contour calculation update
•   FCC Update - Unlicensed wireless microphone
     registration system
•   FCC Update - Data systems
•   Database registration authentication and security
         WSDBA Group Update
• Members:
  – Airity
  – Comsearch
  – Google
  – LS Telcom
  – Microsoft
  – Neustar
  – RadioSoft
  – Spectrum Bridge
  – Telcordia Technologies

• Organization Updates:
  – Adam Newman (Telcordia), White Space DBA Group
  – Andy Lee (Google), Computation Working Group Editor
    WSDBA Group Objectives and Goals
• WSDBA Group Objectives:
  – A database interoperability specification to support
    synchronization of multiple WSDBs (“Database
    API”), including agreeing upon an appropriate interval
    for exchange of information, to the extent at least
    required by the FCC Rules
  – Methods to ensure consistent channel availability
    calculations for the purpose of operating a WSDB
    in accordance with FCC Rules and practices (the
    “Calculations Purpose”)

• Goals:
  – One Common Interface
  – Publicly Available
  – Royalty Free
           FCC Update - General Issues
             Notification of FCC Database Changes
• The WS DBAs rely on FCC-provided databases

• Sufficient notice of changes to the data structure must be provided to
  allow for system changes and testing
   – We suggest at least one week

• We would also like to request test versions of the revised data
   – At least within the one-week time frame

• If the FCC makes changes without sufficient notice, WS DBAs will
  continue to use the last file we are able to process until the change
  can be accommodated
   – As noted the guidance provided on 10/4/11 where the database can not be
     accessed “. . . the white space database systems should continue use the data
     from their most recent successful update.”

• The WSDBA Group is developing a process to communicate with the
  FCC and among the WS DBAs should such a situation occur
             FCC Update - General Issues
    FCC Response - Notification of FCC Database Changes

• Media Bureau to notify OET of changes in advance

• OET will provide database administrators:
   – At least one week notice of actual change implementation
   – Test versions of revised download files by e-mail (not on the CDBS site)

• Sometimes situations occur that require immediate modification of file
  structures (less than one week notice)
   – OET will notify database administrators by e-mail as soon as information is
     available; will provide test files if available

• Recommend database administrators also subscribe to AFCCE list-
  serve - contact Mike Rhodes at mike.rhodes@cavellmertz.com
       FCC Update - General Issues
    WS DBA Testing & Certification Process Update
• Spectrum Bridge and Telcordia have now gone through the
  DB test process
  – Spectrum Bridge has been certified to operate
  – Telcordia is in the post 45-day trial comment period

• Clarifications have been provided as testing has occurred

• We suggest that such clarifications be recorded by the FCC and
  made available on the FCC White Space Database
  Administration website
  administration) and any updates as appropriate to:
  – OET Plan for Evaluation of TVWS Database Systems for Operation
  – TVWS Database System Requirements and Tests
  – TVWS Database System Approval Checklist for Completion of
           FCC Update - General Issues
  FCC Response - Testing & Certification Process Update

• OET’s goal is to provide consistency in the evaluation of the database
   – To aid in achieving that goal we issued the three evaluation guidance documents
      and posted them on our website
   – The evaluation documents are crafted to be general so as to accommodate
      differences in database systems

• OET has posted updates of the evaluation guidance documents
   – The current version on the TVWS webpage were posted in October 2011
   – With one correction to item “A.” of the “Plan for Evaluation,” these have not
     changed from the versions currently posted
   – Posted versions updated

• Advice
   – Provide clear information on how to use the channel availability and registration
   – OET will compare channel availability lists among database administrators
   – Wireless microphone registrations do not change the reserved channels
        FCC Update - General Issues

• Availability of the ULS extraction logic
   – Work ongoing; to be completed this Spring; will include unlicensed
     wireless microphone registration data

• Availability of documentation for the current FCC
  CDBS extraction logic
   – New fields added to CDBS recently (table for STAs; new field to
     facility table)
   – Working on update to extraction logic
       FCC Update - General Issues

• Availability of updated Canada/Mexico land
  boundary data
  – New Canadian and Mexican boundary data not final yet
  – Continue to use current boundary data until new data becomes
    available (not expected soon)

• TV relay and TV translator relay input channel
  – Some PTP relay stations re-transmit signals received off-the-air
  – Treat those relays the same as MVPDs for registration of input
    receive channels


• Interoperation based upon specification previously
  submitted on October 7, 2011:

• WSDBA Group will be publishing a minor update to the
  specification as a result of the initial implementation and
  clarifications received from initial OET testing of WS

• Specification is available for use by all WSDBAs

• Demonstration by Spectrum Bridge and Telcordia
   Key Bridge Global’s Strategy for
Database-to-Database Synchronization
Contour Calculation Update
         Contour Calculation Update
To exercise the terrain extraction and contour
calculation specification (http://fjallfoss.fcc.gov/ecfs/
document/view?id=7021713432) submitted October 7,
2011, the WSDBA Group chose eight US TV/ LPTV
representative contours:
    – UHF, VHF high and VHF low bands
    – High ERP to lowest possible ERP
    – Analog and Digital (NTSC and ATSC)
    – Omni and directional antennas (including extreme slopes)
    – Located in CONUS, islands and Alaska
          Contour Calculation Update

• Excellent results from participating DBAs
 – Contour accuracy found to be well within the required 10
   meters in all cases
 – We believe that any implementation with a standard
   deviation error of less than 10 mm on HAAT and 10 cm on
   distance is consistent with our suggested calculation

• Spreadsheet and PDF files containing results data
 are available
        Contour Calculation Update

• Problem
  – Some TV data records are missing antenna
     radiation center above mean sea level (RCAMSL)

• Approach being discussed:
  – If have radiation center above ground level
    (RCAGL), calculate radiation center above mean
    sea level (RCAMSL) using this RCAGL and the
    terrain database
  – If missing RCAMSL and RCAGL but do have the
    (antenna) HAAT, back-calculate RCAMSL from
    HAAT, consistent with FCC guidance (see email
    from Alan Stillwell, 1/12/12)
FCC Update - Wireless Microphone
      Registration System
       Unlicensed Wireless Microphone
         Venue Registration System
Recap of plan:
• FCC will:
  – Accept registration requests, seek public
      comment, and grant the requests
  – Maintain a registration database with information
      on number of channels that can be used and initial
  – Provide public access files for download by the
      database administrators
• Database administrators will:
  – Download records for registered venues
       from public access files
  – Allow registrants to supply schedule and register
       channels within FCC approved limits
  – Provide protection
       Unlicensed Wireless Microphone
         Venue Registration System

Status of FCC Registration System:

• In development:
  - Web design complete
  - Search results complete
  - Public access near completion

• Target date for activation is March 2012

        Unlicensed Wireless Microphone
          Venue Registration System

Public Access:

• Will be added to ULS Downloads:
   - New Unlicensed Wireless Microphone Registrations
      radio service
   - Includes Daily Transaction Files and Weekly
      Database Downloads for applications
   - Contains all statuses – Database Administrators will
      need to look at Accepted (Q) and Killed (K)
      - ignore records with pending status codes
   - Includes all data elements – Certain data files can
     be ignored (e.g. Event Information file)
                           (updated April 5, 2012)

          Unlicensed Wireless Microphone
            Venue Registration System
  Public Access File Structure:

Tables   Contents                             Required or
RD       Registration Detail                  R
NA       Name and Address Information         R
CH       TV Channel Information               R
VN       Venue Information                    R
LL       Latitude and Longitude Coordinates   R
EV       Event Information                    R
A3       UM Attachments                       O
C1       UM Comments                          O

    FCC Data Systems Update

• Petitions for reconsideration
• 80-km receive site waivers
• Canadian TV station data
• TV Station Special Temporary
  Authorizations (STAs)
• Low power TV receive site update
          Canadian TV Station Data
• Canadian station data to be extracted from CDBS
   – Part of OET issued CDBS Extraction Logic
• Canadians indicated that the CDBS records for
  Canadian stations in many cases do not reflect
  actual station operations
   – CDBS records show international agreements (i.e.,
     protects allotments)
   – Actual station operations are often different – operating
     facilities (smaller), actual station location, low power
     stations that are not coordinated
   – We need to protect actual station operations
         Canadian TV Station Data

• Canadians have a database of actual station
  operations; this database is updated daily
• FCC will extract records for stations to be
  protected and make these records available for
  downloading on a daily basis
• Use CDBS until new Canadian database is

         Canadian TV Station Data
• Project involves the conversion of the dBase 3
  files to flat ASCII files
• The new Canadian database download facility will
  be available from OET TV TVWS webpage and
  updated each night (including weekends)
• Test run completed last Friday – expect to be
  operational within a couple of weeks
• Data formats available today
• Will send notification when operational; database
  administrators will have time to implement
       TV Station Special Temporary

• The database administrators were instructed to
  not protect STA records
   – Inconsistencies in the database – STAs that allow
     stations to go silent or make technical changes but do
     not contain technical data
   – Some “silent” stations do not notify FCC when they
     return to operation
   – Intend that only stations that we know are operating are

      TV Station Special Temporary

• Concern that some stations actually operating on
  STAs are not protected (only a few)
• STAs with engineering data can be assumed to be
• Databases should protect operating STAs
• Other STAs still not to be protected

       TV Station Special Temporary

• Media Bureau has added a table if_sta.dat that
  has data needed to extract STAX records
• FCC CDBS extraction logic is being modified to
  include STA records to be protected
• Guidance on webpage to be updated
• New CDBS extraction logic will be distributed to
  the database administrators shortly
• Will notify database administrators in advance of
  the date when the new extraction logic is available
        LPTV/TV Translator Receive Site
               Update Facility
• OET and MB are setting up a webpage facility
    (webapp) for input of receive channel and site
    changes for TV translator, low power TV and
    Class A TV stations
•   Update data will be included in the daily CDBS
    zipped file (table name to be provided later)
•   OET will issue a public notice announcing the
    availability of the receive channel and site update
    webapp when it is completed
•   Not expected to require any separate
    implementation by database administrators
•   The webapp should be implemented soon
        Database Registration Security
             and Authentication
• Unauthorized registrations
   – Party other than the licensee
      • Change existing registration at a site
      • Establish registrations for additional sites
   – Registration by unauthorized party (including foreigners)
     using legitimate wireless microphone call sign
  Unauthorized modifications to registrations
   – Delete a registration
   – Alter channels used, alter schedule, or change location
• Unauthorized registrations can lead to
  interference and/or reduce white space availability
        Database Registration Security

• Protection against unauthorized activity for
  registrations administered by TVWS database
   – Password created when registration established
   – URL allowing modification returned to user when a
     registration action is taken
• Protection against unauthorized registrations by
  unlicensed wireless microphone venues
   – FCC application process will evaluate and grant
     registration requests
   – Modifications and other major requests require FRN and
   – Administrative changes requested by e-mail or letter
          Database Registration Security

• Database system registrations
   – Access control: Licensed facilities, MVPD receive
     channels and temporary BAS links

• Unlicensed wireless microphone registrations
   – Access control: Separate passwords for FCC and
     database system functions

• Others?

Other Issues and Questions


To top