CTIA: Testing Shows Major Carriers Can Deliver Vertical Location of Calls to 911
CTIA told the FCC Thursday nationwide wireless carriers, working with Apple and Google, can provide accurate vertical location information on wireless calls to 911, based on tests by the industry’s 911 Location Technologies Test Bed. CTIA said AT&T, T-Mobile and…
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Verizon also verified the results independently. “We are proud to report the testing validates that device-based hybrid (DBH) z-axis location technology solutions, Google’s Android Emergency Location Service (ELS) and Apple’s Hybridized Emergency Location (HELO), together achieve ± 3-meter accuracy for at least 80 percent of wireless 9-1-1 calls,” said a filing in docket 07-114. The companies faced a 2021 deadline to be able to deliver vertical location data in the top 25 cellular market areas. CTIA said the COVID-19 pandemic delayed testing. “Despite the challenges of the pandemic, including building access, delayed permissions to enter, a compressed testing schedule, and more, the 9-1-1 Location Technologies Test Bed completed testing across more than 1,000 test points,” CTIA Chief Technology Officer Tom Sawanobori blogged: “The tests were more extensive than any previous test campaign, including a greater variety of test regions -- from dense, urban environments to rural communities -- a broader diversity of test buildings (taking into account various heights, construction materials, and building uses), 15 test devices, and more test points per building.”