Alliance for Automotive Innovation Seeks C-V2X Tweaks
The Alliance for Automotive Innovation asked the FCC to make clear in an eventual second report and order that the entire 30 MHz of the 5.895-5.925 GHz band will be reserved for C-V2X operations, in response to NTIA’s input to…
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the cellular vehicle-to-everything joint waiver approval (see 2304240066). “Several automotive stakeholders have explained that more than 30 megahertz of spectrum will be required, particularly for ‘advanced’ C-V2X safety use cases,” said a filing posted Thursday in docket 19-138. The FCC should also clarify that C-V2X operations and federal incumbents exist on a co-primary basis, the group said. “Although the NTIA letter and the C-V2X Waiver Order state that operations under the C-V2X Joint Waiver Request are authorized ‘on a secondary basis’ to federal radiolocation operations in the band, this designation departs from the 5.9 GHz band rules, which provide that federal incumbents share primary status in the band with Intelligent Transportation Services,” the alliance said. Recipients of the joint waiver, meanwhile, asked the FCC Thursday to lift one restriction. The waiver restricts on-board units (OBUs) to 20 dBm transmitter output power, said a filing. The limit is “unnecessary from an interference protection perspective and restricts design flexibility when deploying OBUs under the Joint Waiver Order, for it forces the use of specific antenna designs to achieve the maximum permitted EIRP [equivalent isotropic radiated power] levels and restricts our ability to use higher conducted power limits while still complying with the EIRP levels in the Joint Waiver Order,” the parties said.