Automated location determination to support VoIP E911 using self-surveying techniques for ad hoc wireless network
First Claim
1. A method of obtaining location information in an Internet Protocol (IP) network, comprising:
- requesting, by a wireless network device, first location information from a first member device of a given wireless fidelity (WiFi) network;
requesting, by said wireless network device, second location information from a second member device of said given WiFi network;
requesting, by said wireless network device, third location information from a third member device of said given WiFi network;
meshing said first location information, said second location information, and said third location information, into a single meshed location associated with said wireless network device;
determining the meshed location comprising a meshed latitude that is a mean of individual latitude of each of said three locations and a meshed longitude that is a mean of individual longitude of said three locations; and
providing said meshed location to a WiFi network Access Point AP, as location information for said wireless network device;
wherein said first location information, said second location information, and said third location information are all also meshed locations.
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Accused Products
Abstract
Network devices in an Ad-Hoc wireless network self-survey themselves as necessary for approximate location or precise position information, based on methods employed, particularly useful for a non-open-sky environment. A WiFi Access Point (AP) with or without an internal GPS receiver and location conveyance support may utilize the mesh technique. If an Ad-Hoc network device is unable to contact a suitable location server, or a position request has otherwise failed to deliver a precise position, a WiFi AP is manually configured with appropriate location information, and then offers itself as if it were a location server (thereby becoming an ‘internal’ server’, containing either the determined or provisioned location of itself, for use by other APs or devices). A location server (either internal to the AP needing location, or external), performs a ‘mesh’ location determination by selecting position information from 3 or more location determined APs for subsequent processing.
231 Citations
7 Claims
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1. A method of obtaining location information in an Internet Protocol (IP) network, comprising:
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requesting, by a wireless network device, first location information from a first member device of a given wireless fidelity (WiFi) network; requesting, by said wireless network device, second location information from a second member device of said given WiFi network; requesting, by said wireless network device, third location information from a third member device of said given WiFi network; meshing said first location information, said second location information, and said third location information, into a single meshed location associated with said wireless network device; determining the meshed location comprising a meshed latitude that is a mean of individual latitude of each of said three locations and a meshed longitude that is a mean of individual longitude of said three locations; and providing said meshed location to a WiFi network Access Point AP, as location information for said wireless network device; wherein said first location information, said second location information, and said third location information are all also meshed locations. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification