SGS Newsletter - Regulatory 202412

United States of America (FCC)

FCC Adopts 'C-V2X' Auto Safety Spectrum Rules

On November 21, the FCC adopted the Second Report and Order to finalize operational and technical rules for the 5,895-5,925 MHz band set aside for Intelligent Transportation Systems (ITS) employing the cellular-vehicle-to-everything (C-V2X) technology. The main points are as follows:

• A three-tier message priority hierarchy for C-V2X has been established in the following order: safety-of-life, public safety, and non-priority communications that promote road safety and efficient, effective road use.
• C-V2X technical requirements:
  • Channel bandwidth: The rules maintain the 10 MHz channel bandwidths while enabling users to combine the 10 MHz channels into 20 or 30 MHz channels without restriction.
  • OBU EIRP PSD limits
    • Outside coordination zones: 33 dBm over the channel bandwidth with geofencing capabilities.
    • Inside coordination zones:
      • i. 5,895-5,905 MHz channel: 23 dBm over the channel bandwidth
      • ii. All other channels: 33 dBm over the channel bandwidth, reduced to 27 dBm over the channel bandwidth within ± 5 degrees of horizontal.
    • OBUs without geofencing are limited to the power levels specified for operation within coordination zones.
  • RSU EIRP PSD limits: 33 dBm over the channel bandwidth
  • RSU antenna height: Maximum of 8m above the roadway surface. RSUs with antennas up to 15m are permitted but require a corresponding reduction in EIRP.
  • OOBE limits
    • o -16 dBm/100 kHz within ± 1 MHz of the band edges.
    • o -13 dBm/MHz within ± 1 to ± 5 MHz of the band edges.
    • o -16 dBm/MHz within ± 5 to ± 30 MHz of the band edges.
    • o -28 dBm/MHz beyond 30 MHz from the band edges.
• The industry is encouraged to develop a consensus over 3GPP C-V2X releases such that no specific release has been mandated.

For detailed information, please refer to: FCC Adopts 'C-V2X' Auto Safety Spectrum Rules

 

 

Canada (ISED)

Update on 802.11ax and 802.11be Testing

During the most recent TCBC workshop held on October 15-17 in Baltimore, MD, USA, ISED raised the point that 802.11ax and 802.11be have to be assessed individually based on an early understanding that these technologies have different channel puncturing aspects. Upon further review, ISED announced on November 13 that they will now accept full-RU testing of 802.11be to be representative of 802.11ax, provided that the power tables are the same.

Any special RU configuration, however, must still be assessed separately.

 

 

European Union (CE)

ECC Issues Decision to Amend Requirements for 6 GHz LPI and VLP Devices

On November 11, the European Communications Commission (ECC) issued an amended Decision ECC/DEC/(20)01 of 20 November 2020 on the harmonised use of the frequency band 5945-6425 MHz for Wireless Access Systems including Radio Local Area Networks (WAS/RLAN) to update operational and technical requirements for WLAN LPI and VLP devices operating in the 6 GHz band. The revised decision entered into force on November 8, 2024, with a preferred implementation date of May 8, 2025. The updated requirements are as follows:

• LPI: a distributed antenna system can be installed inside a train or an aircraft.
• VLP: with the implementation of a mechanism to prioritize operation at frequency blocks above 6,105 MHz, the max mean OOBE EIRP PSD below 5,935 MHz is relaxed to -37 dBm/MHz. Shall such a mechanism be unavailable, the -45 dBm/MHz limit below 5,935 MHz still applies.

For detailed information, please refer to: ECC Issues Decision to Update Requirements for 6 GHz LPI and VLP Devices