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43 FR 54791, Nov. 22, 1978, unless otherwise noted.
60 FR 15253, Mar. 23, 1995, unless otherwise noted.
89 FR 100852, Dec. 13, 2024, unless otherwise noted.
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Subscribe to: 47 CFR Part 90 Subpart M - Regulations Governing the Licensing and Use of Frequencies in the 5895-5925 MHz Band for Cellular Vehicle to Everything (C-V2X) Roadside Units (RSUs)
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89 FR 100852, Dec. 13, 2024, unless otherwise noted.
(a) Cellular Vehicle to Everything (C-V2X) Roadside Units (RSUs) are permitted to operate in the 5895-5925 MHz band.
(b) Frequencies in the 5895-5925 MHz band will not be assigned for the exclusive use of any licensee. Channels are available on a shared basis only for use in accordance with the Commission's rules. All licensees shall cooperate in the selection and use of channels in order to reduce interference. This includes monitoring for communications in progress and any other measures as may be necessary to minimize interference.
(c) Licensees of C-V2X RSUs suffering or causing harmful interference are expected to cooperate and resolve this problem by mutually satisfactory arrangements. If the licensees are unable to do so, the Commission may impose restrictions including specifying the transmitter power, antenna height and direction, additional filtering, or area or hours of operation of the stations concerned. The use of any channel at a given geographical location may be denied when, in the judgment of the Commission, its use at that location is not in the public interest; use of any such channel may be restricted as to specified geographical areas, maximum power, or such other operating conditions, contained in this part or in the station authorization.
[89 FR 100852, Dec. 13, 2024]
(a) These provisions pertain to Cellular Vehicle to Everything (C-V2X) Roadside Units (RSUs) operating in the 5895-5925 MHz band. C-V2X On-Board Units are authorized under part 95, subpart L of this chapter.
(b) C-V2X RSUs operating in the band 5895-5925 MHz shall not receive protection from Government Radiolocation services in operation prior to the establishment of the RSU. Operation of RSU stations within the radius centered on the locations listed in the table below, must be coordinated through National Telecommunications and Information Administration (NTIA).
| Location | Latitude | Longitude | Coordination
zone radius |
|---|---|---|---|
| Anclote, Florida | 28-11-18 | 82-47-40 | 45 |
| Cape Canaveral, Florida | 28-28-54 | 80-34-35 | 47 |
| Cape San Blas, Florida | 29-40-31 | 85-20-48 | 47 |
| Carabelle Field, Florida | 29-50-38 | 84-39-46 | 36 |
| Charleston, South Carolina | 32-51-48 | 79-57-48 | 16 |
| Edwards, California | 34-56-43 | 117-54-50 | 53 |
| Eglin, Florida | 30-37-51 | 86-24-16 | 103 |
| Fort Walton Beach, Florida | 30-24-53 | 86-39-58 | 41 |
| Kennedy Space Center, Florida | 28-25-29 | 80-39-51 | 47 |
| Key West, Florida | 24-33-09 | 81-48-28 | 12 |
| Kirtland AFB, New Mexico | 34-59-51 | 106-28-54 | 15 |
| Kokeepark, Hawaii | 22-07-35 | 159-40-06 | 5 |
| MacDill, Florida | 27-50-37 | 82-30-04 | 47 |
| NV Test Training Range, Nevada | 37-18-27 | 116-10-24 | 186 |
| Patuxent River, Maryland | 38-16-55 | 76-25-12 | 6 |
| Pearl Harbor, Hawaii | 21-21-17 | 157-57-51 | 16 |
| Pillar Point, California | 37-29-52 | 122-29-59 | 36 |
| Poker Flat, Alaska | 65-07-36 | 147-29-21 | 13 |
| Port Canaveral, Florida | 28-24-42 | 80-36-17 | 19 |
| Port Hueneme, California | 34-08-60 | 119-12-24 | 24 |
| Point Mugu, California | 34-07-17 | 119-09-1 | 18 |
| Saddlebunch Keys, Florida | 24-38-51 | 81-36-22 | 29 |
| San Diego, California | 32-43-00 | 117-11-00 | 11 |
| San Nicolas Island, California | 33-14-47 | 119-31-07 | 195 |
| Tonopah Test Range, Nevada | 37-44-00 | 116-43-00 | 2 |
| Vandenberg, California | 34-34-58 | 120-33-42 | 55 |
| Venice, Florida | 27-04-37 | 82-27-03 | 50 |
| Wallops Island, Virginia | 37-51-23 | 75-30-41 | 48 |
| White Sands Missile Range, New Mexico | 32-58-26 | 106-23-43 | 158 |
| Yuma, Arizona | 32-54-03 | 114-23-10 | 2 |
(c) NTIA may authorize additional station assignments in the federal radiolocation service and may amend, modify, or revoke existing or additional assignments for such service. Once a federal assignment action is taken, the Commission's Universal Licensing System (ULS) database will be updated accordingly and the list in paragraph (b) of this section will be updated as soon as practicable.
[89 FR 100852, Dec. 13, 2024]
The following entities are eligible to hold an authorization to operate C-V2X RSUs:
(a) Any territory, possession, State, city, county, town or similar governmental entity.
[89 FR 100852, Dec. 13, 2024]
(a) Roadside Units (RSUs) in the 5895-5925 MHz band are licensed on the basis of non-exclusive geographic areas. Governmental applicants will be issued a geographic area license based on the geo-political area encompassing the legal jurisdiction of the entity. All other applicants will be issued a geographic area license for their proposed area of operation based on county(s), State(s) or nationwide.
(b) Applicants who are approved in accordance with FCC Form 601 will be granted non-exclusive licenses for the channel(s) corresponding to their intended operations (see § 90.386). Such licenses serve as a prerequisite of registering individual RSUs located within the licensed geographic area described in paragraph (a) of this section. Licensees must register each RSU in the Universal Licensing System (ULS) before operating such RSU. RSU registrations are subject, inter alia, to the requirements of § 1.923 of this chapter as applicable (antenna structure registration, environmental concerns, international coordination, and quiet zones). Additionally, RSUs at locations subject to NTIA coordination (see § 90.387(b)) may not begin operation until NTIA approval is received. Registrations are not effective until the Commission posts them on the ULS. It is the licensee's responsibility to delete from the ULS registration database any RSUs that have been discontinued.
(c) Licensees must operate each C-V2X RSU in accordance with the Commission's rules and the registration data posted on the ULS for such C-V2X RSU.
[89 FR 100852, Dec. 13, 2024]
(a) Channels. C-V2X may operate on the following band segments:
| 10-megahertz channels: | 20-megahertz channels: | 30-megahertz channel: |
|---|---|---|
| 5895-5905 MHz | 5895-5915 MHz | 5895-5925 MHz. |
| 5905-5915 MHz | 5905-5925 MHz | |
| 5915-5925 MHz |
(b) Safety/public safety priority. The following access priority governs all C-V2X operations:
(1) Communications involving the safety of life have access priority over all other C-V2X communications;
(2) C-V2X communications involving public safety have access priority over all other C-V2X except those communications described in (b)(1) of this section. Roadside Units (RSUs) operated by State or local governmental entities are presumptively engaged in public safety priority communications.
(c) Non-priority communications. C-V2X communications not listed in paragraph (b) of this section, are non-priority communications.
(1) If a dispute arises concerning non-priority communications, the licensee of the later-registered RSU must accommodate the operation of the early registered RSU, i.e., interference protection rights are date-sensitive, based on the date that the RSU is first registered (see § 90.389) and the later-registered RSU must modify its operations to resolve the dispute in accordance with paragraph (c)(2) of this section.
(2) For purposes of this paragraph (c), objectionable interference will be considered to exist when the Commission receives a complaint and the difference in signal strength between the earlier-registered RSU and the later-registered RSU is 18 dB or less (co-channel). Later-registered RSUs causing objectionable interference must correct the interference immediately unless written consent is obtained from the licensee of the earlier-registered RSU.
[89 FR 100852, Dec. 13, 2024; 90 FR 5725, Jan. 17, 2025]
(a) C-V2X licensees must limit RSU equivalent isotropically radiated power (EIRP) to 33 dBm. This limit applies to any operation within the 5895-5925 MHz band as follows:
(1) 33 dBm/10 MHz EIRP;
(2) 33 dBm/20 MHz EIRP; and
(3) 33 dBm/30 MHz EIRP.
(b) For purposes of this section, the EIRP is root mean squared (RMS) measured as the maximum EIRP toward the horizon or horizontal, whichever is greater, of the gain associated with the main or center of the transmission beam.
(c) The radiation center of an RSU antenna shall not exceed 8 meters above the roadway bed surface, except that an RSU may employ an antenna with a height exceeding 8 meters but not exceeding 15 meters provided the EIRP specified in paragraph (a) of this section is reduced by a factor of 20 log(Ht/8) in dB where Ht is the height of the radiation center of the antenna in meters above the roadway bed surface. The RSU antenna height must not exceed 15 meters above the roadway bed surface.
[89 FR 100852, Dec. 13, 2024]
C-V2X Roadside Units (RSUs) must comply with the following out-of-band emissions limits.
(a) Conducted limits measured at the antenna input must not exceed:
(1) −16 dBm/100 kHz within ±1 megahertz of the band edges;
(2) −13 dBm/MHz within ±1 megahertz to ±5 megahertz of the band edges;
(3) −16 dBm/MHz within ±5 megahertz to ±30 megahertz of the band edges; and
(4) −28 dBm/MHz beyond 30 megahertz from the band edges
(b) [Reserved]
[89 FR 100852, Dec. 13, 2024]
Until such time as agreements between the United States and Canada or the United States and Mexico, as applicable, become effective governing border area use of the 5895-5925 MHz band, authorizations to operate Roadside Units (RSUs) are granted subject to the following conditions:
(a) RSUs must not cause harmful interference to stations in Canada or Mexico that are licensed in accordance with the international table of frequency allocations for Region 2 (see § 2.106 of this chapter) and must accept any interference that may be caused by such stations.
(b) Authority to operate RSUs is subject to modifications and future agreements between the United States and Canada or the United States and Mexico, as applicable.
[89 FR 100852, Dec. 13, 2024]