Toyota Questions Utility of Devices Used in 5.9 GHz Sharing Tests
Toyota representatives questioned whether some devices the FCC is testing to examine sharing between Wi-Fi and dedicated short-range communications (DSRC) systems designed to prevent many motor-vehicle accidents (see 1605260059) will give the agency a complete picture. The automaker reported on…
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meetings with aides to Commissioners Mignon Clyburn, Mike O’Rielly and Ajit Pai. “The re-channelization devices submitted for testing seem to be off-the-shelf 802.11ac devices that have been tweaked to operate in the U-NII-4 band and, unfortunately, do not fully support the re-channelization proposal,” the company said in a filing in docket 13-49. “The devices do not appear to implement any sharing mechanism for the portion of the band that is expected to be shared between U-NII and DSRC. ... While the devices can be used to test cross-channel interference from U-NII to DSRC, they cannot be used to test co-channel U-NII-to-DSRC interference.”