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Spectrum Engineering Reports

NOTE: These reports are available either on-line in PDF (portable document) format or only as hard-copy. If you would like a copy of a report that is not available electronically, please make note of the document number and submit your request to:

NTIA Office of Spectrum Management
System Engineering and Analysis Division
Tel. (202) 482-2608
Fax (202) 482-4595
e-mail edrocella@ntia.gov

Technical Feasibility of Sharing Federal Spectrum with Future Commercial Operations in the 3450-3550 MHz Band

Report ID
Technical Report 20-546
January 27, 2020
Edward Drocella, Robert Sole, Nickolas LaSorte
Abstract

As part of NTIA’s ongoing effort to identify candidate bands for repurposing to accommodate commercial wireless services, NTIA selected the 3450-3550 MHz band to study for potential sharing between federal systems and a variety of non-federal commercial wireless operations.  NTIA worked with the Department of Defense, which operates the federal systems in the band, to determine if commercial services could operate without causing impact to incumbent operations.  The report indicates that commercial operations would impact incumbent federal systems; however, spectrum sharing may be possible that provides both sufficient protection to incumbent operations and attractive opportunities for commercial business – subject to further analysis and deployment of innovative time-based sharing mechanisms.

Keywords: radar; interference; spectrum sharing; 3450-3550 MHz; airborne radar

 

Commercial Spectrum Enhancement Act Annual Progress Report for 2018

November 18, 2019

NTIA submits this report pursuant to Section 207 of the Commercial Spectrum Enhancement Act (CSEA), Title II of Pub. L. 108-494, which requires annual reporting on federal agencies’ progress to relocate radio communications systems from spectrum or share spectrum that has been reallocated to commercial use. This report provides details on two separate spectrum auctions conducted by the Federal Communications Commission (FCC) that included: 1) the 1710 to 1755 megahertz (MHz) band, and 2) the 1695-1710 MHz and 1755-1780 MHz bands.

NTIA Activities on Ensuring Spectrum Access for Radio Astronomy (FY 2018 and FY 2019)

September 17, 2019

Senate Report 115-275, which accompanied the Consolidated Appropriations Act, 2019, Pub. L. No. 116-6, directs the National Telecommunications and Information Administration(NTIA) to report to Congress on "ensuring spectrum access for radio astronomy as commercial use of radio spectrum increases." This report covers all NTIA coordination activities from October 1, 2017 through August 14, 2019.

Commercial Spectrum Enhancement Act Annual Progress Report for 2017

July 03, 2018

NTIA submits this report pursuant to Section 207 of the Commercial Spectrum Enhancement Act (CSEA), Title II of Pub. L. 108-494, which requires annual reporting on federal agencies’ progress to relocate radio communications systems from spectrum or share spectrum that has been reallocated to commercial use. This report provides details on two separate spectrum auctions conducted by the Federal Communications Commission (FCC) that included: 1) the 1710 to 1755 megahertz (MHz) band, and 2) the 1695-1710 MHz and 1755-1780 MHz bands.

Commercial Spectrum Enhancement Act Annual Progress Report for 2016

July 27, 2017

NTIA submits this report pursuant to Section 207 of the Commercial Spectrum Enhancement Act (CSEA), Title II of Pub. L. 108-494, which requires annual reporting on federal agencies’ progress to relocate radio communications systems from spectrum or share spectrum that has been reallocated to commercial use. This report provides details on two separate spectrum auctions conducted by the Federal Communications Commission (FCC) that included: 1) the 1710 to 1755 megahertz (MHz) band, and 2) the 1695-1710 MHz and 1755-1780 MHz bands.

Quantitative Assessments of Spectrum Usage

November 17, 2016

In this report, the National Telecommunications and Information Administration (NTIA) presents a summary of the results of its quantitative assessments of spectrum usage in response to the 2013 Presidential Memorandum entitled Expanding America’s Leadership in Wireless Innovation. Through this memorandum, the President sought to make more spectrum available by allowing and encouraging shared access by commercial providers to spectrum that is currently allocated for federal use.

Sixth Interim Progress Report on the Ten-Year Plan and Timetable

June 17, 2016

NTIA submits this Sixth Interim Progress Report to describe progress toward achieving the Administration’s directive to identify and make available 500 megahertz of spectrum for licensed and unlicensed wireless broadband services within ten years, while assuring the protection of vital government operations that rely on spectrum. This report covers October 1, 2014 through September 30, 2015 (FY15).

Commercial Spectrum Enhancement Act (CSEA) Annual Progress Report for 2015

April 26, 2016

NTIA submits this report pursuant to Section 207 of the Commercial Spectrum Enhancement Act (CSEA), Title II of Pub. L. 108-494, which requires annual reporting on federal agencies’ progress to relocate wireless communications systems from spectrum or share spectrum that has been reallocated to commercial use. This report provides details on two separate spectrum auctions conducted by the Federal Communications Commission (FCC) that included: 1) the 1710 to 1755 megahertz (MHz) band, and 2) the 1695-1710 MHz and 1755-1780 MHz bands.

3.5 GHz Exclusion Zone Analyses and Methodology

Report ID
Technical Report TR-15-517
June 18, 2015
Edward F. Drocella Jr.; James C. Richards; Robert L. Sole; Fred Najmy; April Lundy; Paul M. McKenna
Abstract

This report describes the 3.5 GHz Study. It explains the assumptions, methods, analyses, and system characteristics used to generate the revised exclusion zones for small-cell commercial broadband systems to protect federal radar operations (ship and land based) from aggregate interference in the band 3550–3650 MHz. The 3.5 GHz Study’s exclusion zones are compared with the exclusion zones that were generated in the Fast Track Report, which considered macro-cell operations.

Keywords: RADAR; spectrum sharing; FCC; NTIA; 3.5 GHz band; exclusion zones; CBRS; 3550-3650 MHz