Floor-Level Reading for Wireless 911 Calls Isn't Possible, NextNav Tells FCC
NextNav executives urged the FCC to act on a proposed rule requiring carriers meet a new vertical location (z-axis) accuracy metric for indoor wireless calls to 911. But the company said using the data to determine a floor number of…
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the caller isn’t possible with current technology. “There is no uniformity in the height of each floor level in different buildings and many buildings have unique floor numbering systems (such as skipping the 13th floor) that cannot be taken into consideration absent extensive mapping of every building in a covered area,” NextNav said in a meeting with Public Safety Bureau staff: “Regardless of the precision of the vertical location information, the current requirement of a horizontal location fix within 50 meters does not provide sufficient accuracy to reliably place a wireless caller in a particular building.” Commissioners approved a Further NPRM in March (see 1903150067). Among those at the meeting were NextNav Executive Chairman Gary Parsons and CEO Ganesh Pattabiraman, said a filing posted Wednesday in docket 07-114.