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Allocations

Intro to Allocations

U.S. Non-Federal-Government Allocations

31.3 - 31.8 GHz
EARTH EXPLORATION-SATELLITE (passive)
RADIO ASTRONOMY US74
SPACE RESEARCH (passive)

US246

U.S. Federal Government Allocations

31.3 - 31.8 GHz
EARTH EXPLORATION-SATELLITE (passive)
RADIO ASTRONOMY US74
SPACE RESEARCH (passive)

US246

ITU Region 1 Allocations

31.3 - 31.5 GHz
EARTH EXPLORATION-SATELLITE (passive)
RADIO ASTRONOMY
SPACE RESEARCH (passive)

5.340

ITU Region 2 Allocations

31.3 - 31.5 GHz
EARTH EXPLORATION-SATELLITE (passive)
RADIO ASTRONOMY
SPACE RESEARCH (passive)

5.340

ITU Region 3 Allocations

31.3 - 31.5 GHz
EARTH EXPLORATION-SATELLITE (passive)
RADIO ASTRONOMY
SPACE RESEARCH (passive)

5.340

SpectrumWiki

Band Uses (31.3 - 31.8 GHz)

Local Multipoint Distribution Service (LMDS)

NASA Deep Space Network (DSN)

High Altitude Platform Station (HAPS)

Footnotes

5.340 All emissions are prohibited in the following bands:
1 400-1 427 MHz,
2 690-2 700 MHz, except those provided for by No. 5.422,
10.68-10.7 GHz, except those provided for by No. 5.483,
15.35-15.4 GHz, except those provided for by No. 5.511,
23.6-24 GHz,
31.3-31.5 GHz,
31.5-31.8 GHz, in Region 2,
48.94-49.04 GHz, from airborne stations
50.2-50.4 GHz*,
52.6-54.25 GHz,
86-92 GHz,
100-102 GHz,
109.5-111.8 GHz,
114.25-116 GHz,
148.5-151.5 GHz,
164-167 GHz,
182-185 GHz,
190-191.8 GHz,
200-209 GHz,
226-231.5 GHz,
250-252 GHz. (WRC 03)

US74 In the bands 25.55-25.67, 73-74.6, 406.1-410, 608-614, 1400-1427, 1660.5-1670, 2690-2700, and 4990-5000 MHz, and in the bands 10.68-10.7, 15.35-15.4, 23.6-24.0, 31.3-31.5, 86-92, 100-102, 109.5-111.8, 114.25-116, 148.5-151.5, 164-167, 200-209, and 250-252 GHz, the radio astronomy service shall be protected from unwanted emissions only to the extent that such radiation exceeds the level which would be present if the offending station were operating in compliance with the technical standards or criteria applicable to the service in which it operates. Radio astronomy observations in these bands are performed at the locations listed in US385.

US246 No station shall be authorized to transmit in the following bands: 73-74.6 MHz, 608-614 MHz, except for medical telemetry equipment¹ and white space devices,² 1400-1427 MHz, 1660.5-1668.4 MHz, 2690-2700 MHz, 4990-5000 MHz, 10.68-10.7 GHz, 15.35-15.4 GHz, 23.6-24 GHz, 31.3-31.8 GHz, 50.2-50.4 GHz, 52.6-54.25 GHz, 86-92 GHz, 100-102 GHz, 109.5-111.8 GHz, 114.25-116 GHz, 148.5-151.5 GHz, 164-167 GHz, 182-185 GHz, 190-191.8 GHz, 200-209 GHz, 226-231.5 GHz, 250-252 GHz.

¹Medical telemetry equipment shall not cause harmful interference to radio astronomy operations in the band 608-614 MHz and shall be coordinated under the requirements found in 47 CFR 95.1119.

²White space devices shall not cause harmful interference to radio astronomy operations in the band 608-614 MHz and shall not operate within the areas described in 47 CFR 15.712(h).

SpectrumWiki

Band Uses (31.3 - 31.8 GHz)

Local Multipoint Distribution Service (LMDS)

According to the FCC (FCC 15-38):

"In 1997, the Commission developed a band plan making 1,300 megahertz of LMDS spectrum in each basic trading area (BTA) across the United States. Specifically, the Commission allocated two LMDS licenses per BTA -- an "A Block" and a "B Block" in each. The A Block license is comprised of 1,150 megahertz of total bandwidth, and the B Block is comprised of 150 megahertz of total bandwidth...Of the 986 designated license areas (492 BTAs times two licenses per BTA), 416 areas have active licenses, which cover about 75 percent of the U.S. population."

LMDS was originally envisioned as a fixed broadband point-to-multipoint microwave service. LMDS spectrum was auctioned in 1998 and 1999 for a total of approximately $623 million.

In FCC 15-38,the FCC has proposed to open the 27.5-28.35 GHz LMDS spectrum for broadband mobile communications.

Frequency Bands
Band	Use	Service	Table
27.5 - 28.35 GHz	LMDS A1 Band	Fixed	N
29.1 - 29.25 GHz	LMDS A2 Band	Fixed	N
31 - 31.075 GHz	LMDS B1 Band	Fixed	N
31.075 - 31.225 GHz	LMDS A3 Band	Fixed	N
31.225 - 31.3 GHz	LMDS B2 Band	Fixed	N

External Links:

LMDS Second Report & Order and Fifth Notice of Proposed Rulemaking (FCC 97-82)

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NASA Deep Space Network (DSN)

According to NASA:

"The NASA Deep Space Network - or DSN - is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions.

"The DSN currently consists of three deep-space communications facilities placed approximately 120 degrees apart around the world: at Goldstone, in California's Mojave Desert; near Madrid, Spain; and near Canberra, Australia. This strategic placement permits constant observation of spacecraft as the Earth rotates, and helps to make the DSN the largest and most sensitive scientific telecommunications system in the world."

Frequency Bands
Band	Use	Service	Table
25.5 - 27 GHz	DSN K-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research	F

Paired Frequency Bands
Paired Bands	Use	Service	Table
2025 - 2110 MHz	DSN S-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
2200 - 2290 MHz	DSN S-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
2110 - 2120 MHz	DSN S-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
2290 - 2300 MHz	DSN S-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7145 - 7190 MHz	DSN X-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
8400 - 8450 MHz	DSN X-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7190 - 7235 MHz	DSN X-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
8450 - 8500 MHz	DSN X-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
31.8 - 32.3 GHz	DSN Ka-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
34.2 - 34.7 GHz	DSN Ka-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F

External Links:

NASA Deep Space Network

NASA DSN Frequency and Channel Assignments (DSN 810-005 part 201)

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High Altitude Platform Station (HAPS)

The ITU has identified various bands for use by High Altitude Platform Stations (HAPS), which are defined as "a station located on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth."

One set of bands (47.2-47.5 and 47.9-48.2 GHz) is identified on a worldwide basis. The others apply regionally or in a subset of countries.

Although there was a flurry of activity related to HAPS beginning in the late 1990's, no HAPS systems were ever developed. As of 2015, there is renewed interest in HAPS for applications involving telecommunications from Unmanned Aerial Systems (UAS).

HAPS is declared as an application of the fixed service.

Paired Frequency Bands
Paired Bands	Use	Service	Table
6440 - 6520 MHz	HAPS-to-ground in 5 countries (per 5.457)	Fixed	-
6560 - 6640 MHz	Ground-to-HAPS in 5 countries (per 5.457)	Fixed	-
27.9 - 28.2 GHz	HAPS-to-ground in 23 countries (per 5.537A)	Fixed	-
31 - 31.3 GHz	Ground-to-HAPS in 23 countries (per 5.543A)	Fixed	-

Frequency Bands
Band	Use	Service	Table
1885 - 1980 MHz	HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A)	Fixed	-
2010 - 2025 MHz	HAPS service links for IMT in Regions 1 & 3 (per 5.388A)	Fixed	-
2110 - 2160 MHz	HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A)	Fixed	-
2160 - 2170 MHz	HAPS service links for IMT in Region 2 (per 5.388A)	Fixed	-
47.2 - 47.5 GHz	HAPS (per 5.552A)	Fixed	-
47.9 - 48.2 GHz	HAPS (per 5.552A)	Fixed	-

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Related Documents, Links, and Multimedia:

FCC Proceeding (2)

FCC Above 24 GHz Mobile Radio Services Notice of Inquiry

In this Notice of Inquiry, we begin a proceeding to examine the potential for the provision of mobile radio services in bands above 24 GHz. As technologies continue to evolve, innovators are working to tap into the potential of using high-band spectrum for mobile services. In particular, industry and technical groups are beginning to examine the use of higher frequencies sometimes known as millimeter wave (mmW) bands for mobile use. This examination of the possible uses of the mmW bands for mobile use takes place within the context of broader efforts to develop technical standards for so-called Fifth Generation (5G) mobile services. In view of the technological and marketplace developments outlined in this item, we seek to discern what frequency bands above 24 GHz would be most suitable for mobile services, and to begin developing a record on mobile service rules and a licensing framework for mobile services in those bands.

Frequencies/Bands

24.25 - 24.45 GHz

25.05 - 25.25 GHz

27.5 - 28.35 GHz

29.1 - 29.25 GHz

31 - 31.3 GHz

37 - 38.6 GHz

38.6 - 40 GHz

42 - 42.5 GHz

57 - 71 GHz

71 - 76 GHz

81 - 86 GHz

Document type and status: FCC proceeding (Current)
Document date or date of hyperlink query: June 23, 2015

FCC Above 24 GHz Mobile Radio Services Notice of Inquiry

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FCC Above 24 GHz Report and Order and Further Notice of Proposed Rulemaking

According to the FCC:

Today, we take a significant step towards securing the Nation’s future in the next generational evolution of wireless technology to so-called 5G. We build upon years of successful spectrum policy – including flexible use, unlicensed, and sharing policies – to create service rules for using four spectrum bands above 24 GHz. These high frequencies previously have been best suited for satellite or fixed microwave applications; however, recent technological breakthroughs have newly enabled advanced mobile services in these bands, notably including very high speed and low latency services. To promote the deployment of these highly beneficial technologies, we are acting quickly –- more quickly than most of our counterparts around the world – to establish a coherent framework built on a robust public record. In addition to this significant step forward, we will also continue to explore new opportunities to make additional bands available and to explore other issues, including robust Federal sharing, raised in the accompanying Further Notice of Proposed Rulemaking.

Frequencies/Bands

24.25 - 24.45 GHz

24.75 - 25.25 GHz

27.5 - 28.35 GHz

31.8 - 33 GHz

37 - 40 GHz

42 - 42.5 GHz

47.2 - 50.2 GHz

50.4 - 52.6 GHz

64 - 71 GHz

71 - 76 GHz

81 - 86 GHz

95 - 300 GHz

Document type and status: FCC proceeding (Current)
Document date or date of hyperlink query: September 21, 2016
Fcc Docket(s): GN 14-177, IB 15-256, RM-1164, WT 10-112, IB 97-95

FCC Above 24 GHz Report and Order and Further Notice of Proposed Rulemaking

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Other (1)

The Very Large Array Radio Telescope

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	31.3 GHz	31.55 GHz	31.8 GHz
Wavelength	9.6 mm	9.5 mm	9.4 mm
Band designator(s)	EHF (millimeter wave); Ka-band (IEEE)	EHF (millimeter wave); Ka-band (IEEE)	EHF (millimeter wave); Ka-band (IEEE)
Isotropic collecting area	7.3 mm²	7.2 mm²	7.1 mm²
Free space loss (1 m)	62.4 dB	62.4 dB	62.4 dB
Free space loss (1 km)	122.4 dB	122.4 dB	122.4 dB
Free space loss (10 km)	142.4 dB	142.4 dB	142.4 dB
Free space loss (100 km)	162.4 dB	162.4 dB	162.4 dB
Free space loss (1000 km)	182.4 dB	182.4 dB	182.4 dB
Free space loss (35,786 km = GEO orbit)	213.4 dB	213.5 dB	213.5 dB
Free space loss (378,370 km = Moon)	233.9 dB	234.0 dB	234.0 dB