Numerous DSRC Questions Need Addressing, Comcast, NCTA Tell FCC
When the FCC issues a public notice to refresh the record on rules for unlicensed national information infrastructure (U-NII) devices in the 5 GHz band, it should particularly seek input on sense-and-avoid and re-channelization sharing approaches, and the best sharing…
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approaches for crash avoidance and dedicated short-range communications (DSRC) systems applications, NCTA and Comcast said in an ex parte filing Thursday in docket 13-49. They also said the FCC should seek input on DSRC questions on which the IEEE 5.9 GHz DSRC Tiger Team was unable to come to consensus, including the noise tolerance of DSRC from noise sources, what out-of-band limits would be needed to protect vehicle-to-vehicle communications, and the kind of DSRC interference that will occur in a vehicle when Wi-Fi also is transmitting inside. The filing recapped meetings NCTA and Comcast had with staff from the offices of Chairman Tom Wheeler and Commissioners Ajit Pai and Michael O'Rielly, and an NCTA meeting with a Commissioner Jessica Rosenworcel aide. Last week, Google, NCTA, Qualcomm, Public Knowledge and others asked the White House to help broker a deal on Wi-Fi use of the 5.9 GHz band (see 1604280043).