Floor Level Info Important to Locating Wireless Callers to 911, APCO Says
APCO encouraged the FCC to ask questions about whether to require carriers be able to report floor levels of emergency calls to 911, in a draft Further NPRM set for a commissioner vote March 15 (see 1902220062). The draft proposes…
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carriers be required to identify a vertical location accuracy metric, also known as the z-axis, of plus or minus 3 meters for 80 percent of indoor wireless calls to 911. “Identifying the floor level is qualitatively different from achieving floor level accuracy, and would better ensure that z-axis information is actionable,” the group said. Actionable means 911 call takers can quickly use the information “to assist the caller and direct responders to the scene,” APCO said in docket 07-114. Also Tuesday, CTIA said the wireless industry’s location technologies test bed is inviting technology vendors to participate in vertical positioning accuracy testing. CTIA is looking at existing and emerging technologies, said Test Bed Vice President Tom Sawanobori. The next stage “will help us evaluate new technologies that could be critical to helping 9-1-1 professionals and first responders save lives,” he said.