Indoor Location Mechanisms for Emergency Services
2015
The application of summoning emergency assistance by using a phone to
call 9-1-1 in North America has been ingrained in society for 40+
years. A successful emergency response to a caller in need, is
dependent upon the responders receiving accurate location information
to effect timely action. Traditional wireline telephony is able to
utilize the location of the physical wires as a source of information
for caller location, whereas wireless technologies require more exotic
mechanisms to locate a 9-1-1 caller. Mechanisms for locating a
cellular caller dialing 9-1-1 is based on 20 year old technology,
which was designed for outdoor environments, and does not perform
sufficiently when used to locate an emergency caller from within a
home or office building environment. With growing trends in mobile
cellular usage, large portions of subscribers are relying solely on
their mobile phones to make emergency calls. Emergency response time
suffers when that caller is located indoors. This document defines
the problem statement and solutions for expanding the current set of
methods used to locate a cellular caller to 9-1-1. The expansion of
the methods includes connections to services that are outside the
normal administrative domain of the cellular provider, hence both the
privacy and security aspects of connecting these systems are taken
into consideration.
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