82 FR 18736 - Impact of Long Term Evolution Signals on Global Positioning System Receivers

DEPARTMENT OF COMMERCE
National Institute of Standards and Technology

Federal Register Volume 82, Issue 76 (April 21, 2017)

Page Range		18736-18737
FR Document		2017-08080

The National Institute of Standards and Technology (NIST) announces that National Advanced Spectrum and Communications Test Network (NASCTN) will hold a public meeting on May 4, 2017 to inform the public about the NASCTN project ``Impact of Long Term Evolution (LTE) signals on Global Positioning System (GPS) Devices''. At this meeting, the public will learn about this project, as described in the report released to the public on February 15, 2017, available at: http://nvlpubs.nist.gov/nistpubs/TechnicalNotes/NIST.TN.1952.pdf. A summary of NASCTN's test methodology and an overview of the test results will be provided as well.

Federal Register, Volume 82 Issue 76 (Friday, April 21, 2017)

[Federal Register Volume 82, Number 76 (Friday, April 21, 2017)]
[Notices]
[Pages 18736-18737]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-08080]


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DEPARTMENT OF COMMERCE

National Institute of Standards and Technology


Impact of Long Term Evolution Signals on Global Positioning 
System Receivers

AGENCY: National Institute of Standards and Technology, Department of 
Commerce.

ACTION: Notice of public meeting.

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SUMMARY: The National Institute of Standards and Technology (NIST) 
announces that National Advanced Spectrum and Communications Test 
Network (NASCTN) will hold a public meeting on May 4, 2017 to inform 
the public about the NASCTN project ``Impact of Long Term Evolution 
(LTE) signals on Global Positioning System (GPS) Devices''. At this 
meeting, the public will learn about this project, as described in the 
report released to the public on February 15, 2017, available at: 
http://nvlpubs.nist.gov/nistpubs/TechnicalNotes/NIST.TN.1952.pdf. A 
summary of NASCTN's test methodology and an overview of the test 
results will be provided as well.

DATES: The meeting will be held on Thursday, May 4, 2017, from 9:00 
a.m. to 12:00 p.m. Eastern Time. To attend the meeting in person you 
must register in advance by 5:00 p.m. Eastern Time on Tuesday, May 2, 
2017. In order to access the WebEx you must register in advance by 5:00 
p.m. Eastern Time on Wednesday, May 3, 2017. For instructions on how to 
register to participate in the meeting, please see the SUPPLEMENTARY 
INFORMATION section of this notice.

ADDRESSES: The meeting will be held at MITRE Campus, Building 1, 7525 
Colshire Drive, McLean VA, 22102. Directions to the MITRE McLean Campus 
are available at: https://www.mitre.org/sites/default/files/pdf/mclean-campus-map.pdf. The meeting will also be accessible via WebEx.

FOR FURTHER INFORMATION CONTACT: For questions about this public 
meeting contact: Dr. Sheryl Genco, Communications Technology 
Laboratory, NIST by email at [email protected]; telephone (303-497-
3591) or fax (303-497-6665). Please direct media inquiries to the NIST 
Public Affairs Officer, Laura Ost by email at [email protected] or 
telephone (303-497-4880).

SUPPLEMENTARY INFORMATION: NASCTN provides a neutral forum for 
addressing spectrum-sharing challenges to accelerate the deployment of 
wireless technologies among commercial and federal users. NASCTN was 
created in 2015 and is a joint effort among NIST, the National 
Telecommunications and Information Administration, and the United 
States Department of Defense. NASCTN's mission is to provide robust 
test processes and validated measurement data necessary to develop, 
evaluate and deploy spectrum sharing technologies that can increase 
access to the spectrum by both Federal agencies and non-federal 
spectrum users. NASCTN conducts projects with private sector entities 
via Cooperative Research and Development Agreements (CRADA).\1\ NASCTN 
has completed the ``Impacts of LTE Signals on GPS Receivers'' project 
and released the NASCTN report ``LTE Impacts on GPS'' on February 15, 
2017. The report describes the project, the test methodology and the 
test results and is available at: http://nvlpubs.nist.gov/nistpubs/TechnicalNotes/NIST.TN.1952.pdf.
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    \1\ A CRADA is the principal mechanism used by Federal 
laboratories to engage in collaborative efforts with non-Federal 
entities and allow the exchange of resources with private industry 
to advance technologies that can then be commercialized for the 
benefit of the public and the U.S. economy.
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    The focus of this NASCTN project, proposed by Ligado Networks in 
2016 and conducted under a CRADA between NIST and Ligado Networks, was 
the development of a test methodology to: (1) Investigate the impact of 
LTE signals on GPS devices that operate in the GPS L1 frequency band; 
and (2) perform radiated radio-frequency measurements on a 
representative set of GPS devices to validate the test methodology.
    At the start of the project, NASCTN convened a panel of technical 
experts to develop a test plan with the following objectives: Develop a 
test plan that is transparent, reproducible, and well-calibrated; 
develop sound, statistically-valid data retrieval and processing 
techniques; provide a clear path from measurement setup, to data 
collection, to processed results; and provide data to inform 
discussions between different interested parties on proper measurement 
requirements. The goal

[[Page 18737]]

was to make reproducible measurements under clearly-defined test 
conditions to isolate impacts of radiated LTE signals on GPS receivers, 
and to allow others to make comparable measurements if desired. To 
accomplish this, the approach aimed to measure the response of selected 
GPS devices given well-controlled GPS and LTE power levels under fixed, 
stable thermal noise conditions, while limiting the number of other 
extraneous variables.
    In May of 2016, the NASCTN team completed the draft test plan and 
distributed it to a cross-section of GPS manufacturers, Federal 
agencies, and spectrum regulators and released it publicly for comments 
to obtain technical feedback on the proposed method. Over a two-month 
period, NASCTN received 159 comments from 10 different organizations. 
The NASCTN test team reviewed the comments and developed a revised test 
plan in July of 2016 that addressed the technical issues raised in the 
comments. The draft test plan, the revised test plan, and the 
adjudicated comments from the review process are all publicly available 
on the NASCTN Web site at: https://www.nist.gov/programs-projects/impact-lte-signals-gps-receivers.
    Over a three-month period, from August through October 2016, NASCTN 
performed the radiated measurements associated with this project at two 
facilities--a semi-anechoic chamber at National Technical Systems in 
Longmont, Colorado and at a fully-anechoic chamber at the NIST 
Broadband Interoperability Testbed facility in Boulder, Colorado, using 
the revised test plan.
    NASCTN relied on technical staff from NIST and the U.S. Army's 
Electronic Proving Grounds to perform and validate the measurements and 
collect the data. The team was multi-disciplinary, including expertise 
in GPS devices and simulation, radiated radio-frequency measurements, 
timing measurements, microwave metrology, statistical analysis and data 
processing.
    In total, NASCTN performed 1,476 hours of testing and collected 
over 19,000 data files for a variety of measurands, including carrier-
to-noise-density ratio (C/N0), 3D position error, timing 
error, number of satellites in view, time to first fix, and time to 
first reacquisition, that were collected from a number of GPS devices 
at a baseline condition (no LTE signals present) and over a large range 
of LTE signal power levels. Subsequent data processing yielded a set of 
3,859 anonymized data files (780 MB) that may be requested here: 
https://www.nist.gov/sites/default/files/documents/2017/02/15/impact_of_lte_on_gps_-_measurement_data_request_form.pdf. More 
information on this NASTCN project, including the document library and 
the archived draft test plan, the revised test plan, adjudicated 
comments, and supplemental information, is available at: https://www.nist.gov/programs-projects/impact-lte-signals-gps-receivers.
    Due to significant interest in these measurements by regulators for 
assessing LTE signals on performance of GPS devices, Federal agencies, 
and the GPS community, NASCTN is hosting a public meeting to provide an 
overview of the project, the test methodology and the test results. 
NASCTN will also answer questions on the project, the testing 
methodology and the test results. The final agenda for the public 
meeting will be posted on the NASCTN Web page, available at: https://www.nist.gov/communications-technology-laboratory-ctl/nasctn.
    Admittance Instructions: Anyone wishing to attend the NASCTN ``LTE 
Impact on GPS Devices'' public meeting must register by email to 
[email protected] no later than 5:00 p.m. Eastern Time on Tuesday, May, 2 
2017. Please provide your first and last name, email address, phone 
number, and company affiliation in the registration email.
    Seating at the public meeting may be limited, and attendance will 
be ``first-come, first-served,'' on a space-available basis.
    The public meeting will also be accessible via WebEx for those who 
are unable to participate in person. If you wish to have access to the 
WebEx, you must register in advance of the meeting by sending an email 
with your first and last name, email address, phone number, and company 
affiliation provided in the message to Dr. Sheryl Genco at 
[email protected] no later than 5:00 p.m. Eastern Time on 
Wednesday, May 3, 2017. Instructions for accessing the WebEx will be 
provided by email to individuals who register.

Kevin Kimball,
NIST Chief of Staff.
[FR Doc. 2017-08080 Filed 4-20-17; 8:45 am]
BILLING CODE 3510-13-P

18736 Federal Register / Vol. 82, No. 76 / Friday, April 21, 2017 / Notices

exporter(s) that supplied that non-PRC Comment 6: Surrogate Value for Tire Communications Technology
exporter. These cash deposit Valves Laboratory, NIST by email at
requirements, when imposed, shall Comment 7: Warehousing Expense sheryl.genco@nist.gov; telephone (303–
Calculation for Xugong
remain in effect until further notice. Comment 8: Whether to Adjust Xugong’s
497–3591) or fax (303–497–6665).
U.S. Prices for Irrecoverable Value Please direct media inquiries to the
Notification to Importers
Added Tax NIST Public Affairs Officer, Laura Ost
This notice serves as a final reminder Comment 9: Additional Comments Raised by email at laura.ost@nist.gov or
to importers of their responsibility by GTC telephone (303–497–4880).
under 19 CFR 351.402(f)(2) to file a VII. Recommendation SUPPLEMENTARY INFORMATION: NASCTN
certificate regarding the reimbursement [FR Doc. 2017–08011 Filed 4–20–17; 8:45 am] provides a neutral forum for addressing
of antidumping and/or countervailing BILLING CODE 3510–DS–P spectrum-sharing challenges to
duties prior to liquidation of the accelerate the deployment of wireless
relevant entries during this review technologies among commercial and
period. Failure to comply with this DEPARTMENT OF COMMERCE federal users. NASCTN was created in
requirement could result in the 2015 and is a joint effort among NIST,
Secretary’s presumption that National Institute of Standards and the National Telecommunications and
reimbursement of the antidumping and/ Technology Information Administration, and the
or countervailing duties occurred and United States Department of Defense.
the subsequent assessment of double Impact of Long Term Evolution Signals NASCTN’s mission is to provide robust
antidumping duties. on Global Positioning System test processes and validated
Receivers measurement data necessary to develop,
Administrative Protective Order
AGENCY: National Institute of Standards evaluate and deploy spectrum sharing
This notice also serves as a reminder
and Technology, Department of technologies that can increase access to
to parties subject to administrative
Commerce. the spectrum by both Federal agencies
protective order (‘‘APO’’) of their
ACTION: Notice of public meeting. and non-federal spectrum users.
responsibility concerning the return or
NASCTN conducts projects with private
destruction of proprietary information SUMMARY: The National Institute of sector entities via Cooperative Research
disclosed under the APO in accordance Standards and Technology (NIST) and Development Agreements
with 19 CFR 351.305(a)(3), which announces that National Advanced (CRADA).1 NASCTN has completed the
continues to govern business Spectrum and Communications Test ‘‘Impacts of LTE Signals on GPS
proprietary information in this segment Network (NASCTN) will hold a public Receivers’’ project and released the
of the proceeding. Timely written meeting on May 4, 2017 to inform the NASCTN report ‘‘LTE Impacts on GPS’’
notification of the return/destruction of public about the NASCTN project on February 15, 2017. The report
APO materials or conversion to judicial ‘‘Impact of Long Term Evolution (LTE) describes the project, the test
protective order is hereby requested. signals on Global Positioning System methodology and the test results and is
Failure to comply with the regulations (GPS) Devices’’. At this meeting, the available at: http://nvlpubs.nist.gov/
and terms of an APO is a violation public will learn about this project, as nistpubs/TechnicalNotes/
which is subject to sanction. described in the report released to the NIST.TN.1952.pdf.
We are issuing and publishing these The focus of this NASCTN project,
public on February 15, 2017, available
final results of administrative review in proposed by Ligado Networks in 2016
at: http://nvlpubs.nist.gov/nistpubs/
accordance with sections 751(a)(1) and and conducted under a CRADA between
TechnicalNotes/NIST.TN.1952.pdf. A
777(i) of the Act. NIST and Ligado Networks, was the
summary of NASCTN’s test
Dated: April 12, 2017. methodology and an overview of the test development of a test methodology to:
Ronald K. Lorentzen, results will be provided as well. (1) Investigate the impact of LTE signals
Acting Assistant Secretary for Enforcement DATES: The meeting will be held on on GPS devices that operate in the GPS
and Compliance. Thursday, May 4, 2017, from 9:00 a.m. L1 frequency band; and (2) perform
to 12:00 p.m. Eastern Time. To attend radiated radio-frequency measurements
Appendix on a representative set of GPS devices
the meeting in person you must register
Issues and Decision Memorandum
in advance by 5:00 p.m. Eastern Time to validate the test methodology.
I. Summary At the start of the project, NASCTN
on Tuesday, May 2, 2017. In order to
II. Background convened a panel of technical experts to
access the WebEx you must register in
III. Scope of the Order develop a test plan with the following
IV. Changes since the Preliminary Results
advance by 5:00 p.m. Eastern Time on
objectives: Develop a test plan that is
V. List of Comments Wednesday, May 3, 2017. For
transparent, reproducible, and well-
VI. Discussion of the Issues instructions on how to register to
calibrated; develop sound, statistically-
Comment 1: Separate Rates participate in the meeting, please see
A. Whether to Grant Aeolus a Separate
valid data retrieval and processing
the SUPPLEMENTARY INFORMATION section
Rate techniques; provide a clear path from
of this notice.
B. Whether to Grant GTC a Separate Rate measurement setup, to data collection,
ADDRESSES: The meeting will be held at to processed results; and provide data to
C. Whether to Grant Jinhaoyang a Separate
Rate MITRE Campus, Building 1, 7525 inform discussions between different
D. Whether to Grant Zhongce a Separate Colshire Drive, McLean VA, 22102. interested parties on proper
Directions to the MITRE McLean
sradovich on DSK3GMQ082PROD with NOTICES

Rate measurement requirements. The goal
Comment 2: Calculation of the Cost of Campus are available at: https://
Tube and Flap Inputs for Xugong www.mitre.org/sites/default/files/pdf/ 1 A CRADA is the principal mechanism used by
Comment 3: Surrogate Value for Smoked mclean-campus-map.pdf. The meeting Federal laboratories to engage in collaborative
Sheet Natural Rubber will also be accessible via WebEx. efforts with non-Federal entities and allow the
Comment 4: Surrogate Value for Inland exchange of resources with private industry to
Truck Freight FOR FURTHER INFORMATION CONTACT: For
advance technologies that can then be
Comment 5: Surrogate Value for Carbon questions about this public meeting commercialized for the benefit of the public and the
Black contact: Dr. Sheryl Genco, U.S. economy.

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Federal Register / Vol. 82, No. 76 / Friday, April 21, 2017 / Notices 18737

was to make reproducible lte_on_gps_-_measurement_data_ DEPARTMENT OF COMMERCE
measurements under clearly-defined request_form.pdf. More information on
test conditions to isolate impacts of this NASTCN project, including the National Oceanic and Atmospheric
radiated LTE signals on GPS receivers, document library and the archived draft Administration
and to allow others to make comparable test plan, the revised test plan, RIN 0648–XF375
measurements if desired. To accomplish adjudicated comments, and
this, the approach aimed to measure the supplemental information, is available Mid-Atlantic Fishery Management
response of selected GPS devices given at: https://www.nist.gov/programs- Council (MAFMC); Public Meeting
well-controlled GPS and LTE power projects/impact-lte-signals-gps-
levels under fixed, stable thermal noise AGENCY: National Marine Fisheries
receivers. Service (NMFS), National Oceanic and
conditions, while limiting the number
of other extraneous variables. Due to significant interest in these Atmospheric Administration (NOAA),
In May of 2016, the NASCTN team measurements by regulators for Commerce.
completed the draft test plan and assessing LTE signals on performance of ACTION: Notice of a public meeting.
distributed it to a cross-section of GPS GPS devices, Federal agencies, and the
manufacturers, Federal agencies, and GPS community, NASCTN is hosting a SUMMARY: The Mid-Atlantic Fishery
spectrum regulators and released it public meeting to provide an overview Management Council (Council) will
publicly for comments to obtain of the project, the test methodology and hold public meetings of the Council in
technical feedback on the proposed the test results. NASCTN will also conjunction with the Atlantic States
method. Over a two-month period, Marine Fisheries Commission.
answer questions on the project, the
NASCTN received 159 comments from testing methodology and the test results. DATES: The meeting will be held on
10 different organizations. The NASCTN The final agenda for the public meeting Wednesday, May 10, 2017, from 1 p.m.
test team reviewed the comments and will be posted on the NASCTN Web until 5:45 p.m. For agenda details, see
developed a revised test plan in July of SUPPLEMENTARY INFORMATION.
page, available at: https://www.nist.gov/
2016 that addressed the technical issues ADDRESSES: The meetings will be held
communications-technology-laboratory-
raised in the comments. The draft test at: The Westin Alexandria, 400
plan, the revised test plan, and the ctl/nasctn.
Courthouse Square, Alexandria, VA
adjudicated comments from the review Admittance Instructions: Anyone 22314, telephone: (703) 253–8600.
process are all publicly available on the wishing to attend the NASCTN ‘‘LTE Council address: Mid-Atlantic Fishery
NASCTN Web site at: https:// Impact on GPS Devices’’ public meeting Management Council, 800 N. State
www.nist.gov/programs-projects/ must register by email to nasctn@ Street, Suite 201, Dover, DE 19901;
impact-lte-signals-gps-receivers. nist.gov no later than 5:00 p.m. Eastern telephone: (302) 674–2331 or on their
Over a three-month period, from Time on Tuesday, May, 2 2017. Please Web site at www.mafmc.org.
August through October 2016, NASCTN provide your first and last name, email FOR FURTHER INFORMATION CONTACT:
performed the radiated measurements address, phone number, and company Christopher M. Moore, Ph.D., Executive
associated with this project at two affiliation in the registration email. Director, Mid-Atlantic Fishery
facilities—a semi-anechoic chamber at
Seating at the public meeting may be Management Council, telephone: (302)
National Technical Systems in
limited, and attendance will be ‘‘first- 526–5255.
Longmont, Colorado and at a fully-
anechoic chamber at the NIST come, first-served,’’ on a space-available SUPPLEMENTARY INFORMATION: The
Broadband Interoperability Testbed basis. following items are on the agenda,
facility in Boulder, Colorado, using the though agenda items may be addressed
The public meeting will also be
revised test plan. out of order (changes will be noted on
accessible via WebEx for those who are the Council’s Web site when possible).
NASCTN relied on technical staff unable to participate in person. If you
from NIST and the U.S. Army’s wish to have access to the WebEx, you Agenda
Electronic Proving Grounds to perform
must register in advance of the meeting Wednesday, May 10, 2017
and validate the measurements and
by sending an email with your first and
collect the data. The team was multi- 1. Welcome/Call to Order
disciplinary, including expertise in GPS last name, email address, phone
2. Scup Quota Period Framework
devices and simulation, radiated radio- number, and company affiliation
(Framework 10 to the Summer
frequency measurements, timing provided in the message to Dr. Sheryl
Flounder, Scup, and Black Sea Bass
measurements, microwave metrology, Genco at sheryl.genco@nist.gov no later FMP)
statistical analysis and data processing. than 5:00 p.m. Eastern Time on Final Action
In total, NASCTN performed 1,476 Wednesday, May 3, 2017. Instructions 3. Comprehensive Summer Flounder
hours of testing and collected over for accessing the WebEx will be Amendment
19,000 data files for a variety of provided by email to individuals who Review draft range of alternatives for
measurands, including carrier-to-noise- register. commercial issues and approve
density ratio (C/N0), 3D position error, range of alternatives for further
Kevin Kimball,
timing error, number of satellites in development and inclusion in a
view, time to first fix, and time to first NIST Chief of Staff. public hearing document
reacquisition, that were collected from a [FR Doc. 2017–08080 Filed 4–20–17; 8:45 am] 4. Review Implementation of 2017
number of GPS devices at a baseline
sradovich on DSK3GMQ082PROD with NOTICES

BILLING CODE 3510–13–P Summer Flounder and Black Sea
condition (no LTE signals present) and Bass Recreational Measures
over a large range of LTE signal power 5. Black Sea Bass Wave I Fishery
levels. Subsequent data processing Review white paper on potential
yielded a set of 3,859 anonymized data experimental recreational Wave 1
files (780 MB) that may be requested black sea bass fishery and consider
here: https://www.nist.gov/sites/default/ postponed motion to allow
files/documents/2017/02/15/impact_of_ experimental wave 1 for-hire

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Document Created: 2017-04-21 01:19:00
Document Modified: 2017-04-21 01:19:00

Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Notices
Action		Notice of public meeting.
Dates		The meeting will be held on Thursday, May 4, 2017, from 9:00 a.m. to 12:00 p.m. Eastern Time. To attend the meeting in person you must register in advance by 5:00 p.m. Eastern Time on Tuesday, May 2, 2017. In order to access the WebEx you must register in advance by 5:00 p.m. Eastern Time on Wednesday, May 3, 2017. For instructions on how to register to participate in the meeting, please see the SUPPLEMENTARY INFORMATION section of this notice.
Contact		For questions about this public meeting contact: Dr. Sheryl Genco, Communications Technology Laboratory, NIST by email at [email protected]; telephone (303-497- 3591) or fax (303-497-6665). Please direct media inquiries to the NIST Public Affairs Officer, Laura Ost by email at [email protected]t.gov or telephone (303-497-4880).
FR Citation		82 FR 18736

82 FR 18736 - Impact of Long Term Evolution Signals on Global Positioning System Receivers

DEPARTMENT OF COMMERCENational Institute of Standards and Technology

Federal Register Volume 82, Issue 76 (April 21, 2017)

DEPARTMENT OF COMMERCE
National Institute of Standards and Technology