System and method for providing location information to a public safety answering point during an emergency 911 call from a WiFi handset
First Claim
1. A system for providing location information to a public-safety answering point during an emergency 911 call, the system comprising:
- a network access point configured to;
store physical address information comprising a street name and number of a physical location associated with the network access point;
receive an emergency 911 call from a wireless device currently associated with the network access point;
in response to receiving the emergency 911 call, generate a modified caller identification frequency shift keying (CIFSK) signal containing the physical address information, wherein generating a modified CIFSK signal comprises;
retrieving the stored physical address information; and
modifying the CIFSK signal by replacing data in one or more call identification information data fields with the retrieved physical address information; and
transmit the generated CIFSK signal to cause a public safety answering point (PSAP) receiving the emergency 911 call to display the physical address information, wherein the CIFSK signal is to cause the PSAP to display at least some of the physical address information; and
a controller configured to request from a database, network address information of a selective router through which the physical address information is to be sent to the PSAP during the 911 call, the database being configured to locate the selective router based the physical address information.
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Accused Products
Abstract
A system and method for providing location information to a public safety answering point may include receiving, at a network access point, an emergency 911 call signal including GPS location information and mobile directory number of a wireless device. The GPS location information and mobile directory information may be communicated to a selective muter associated with a public safety access point servicing an area including the network access point. The network access point may be a WiFi access point. The access point address information may be communicated using a type II caller ID data packet after the public safety answering point goes off-hook. By communicating both the access point address information and GPS location information, both PSAPs that are configured as E911 Phase I and E911 Phase II may display address location information of an emergency 911 caller.
137 Citations
18 Claims
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1. A system for providing location information to a public-safety answering point during an emergency 911 call, the system comprising:
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a network access point configured to; store physical address information comprising a street name and number of a physical location associated with the network access point; receive an emergency 911 call from a wireless device currently associated with the network access point; in response to receiving the emergency 911 call, generate a modified caller identification frequency shift keying (CIFSK) signal containing the physical address information, wherein generating a modified CIFSK signal comprises; retrieving the stored physical address information; and modifying the CIFSK signal by replacing data in one or more call identification information data fields with the retrieved physical address information; and transmit the generated CIFSK signal to cause a public safety answering point (PSAP) receiving the emergency 911 call to display the physical address information, wherein the CIFSK signal is to cause the PSAP to display at least some of the physical address information; and a controller configured to request from a database, network address information of a selective router through which the physical address information is to be sent to the PSAP during the 911 call, the database being configured to locate the selective router based the physical address information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for providing location information to a public safety answering point, the method comprising:
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storing, at a network access point, physical address information comprising a street name and number of a physical location associated with the network access point; receiving an emergency 911 call from a wireless device currently associated with the network access point; in response to receiving the emergency 911 call, generating a modified caller identification frequency shift keying (CIFSK) signal containing the physical address information, wherein generating a modified CIFSK signal comprises; retrieving the stored physical address information; and modifying the CIFSK signal by replacing data in one or more call identification information data fields with the retrieved physical address information; requesting, with a network controller, from a database, network address information of a selective router through which the 911 call is to be sent to a public safety answering point (“
PSAP”
), the database being configured to locate the selective router based the physical address information;transmitting the generated CIFSK signal to cause the PSAP receiving the emergency 911 call, the CIFSK signal being configured to cause the PSAP to display at least some of the physical address information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification