System and/or method of locating a portable service access transceiver
AssigneeQUALCOMM Incorporated
InventorsRajarshi Gupta, Saumitra Mohan Das, Douglas Neal Rowitch, Vinay Sridhara
Life of this patent
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Abstract
Described are devices, methods, techniques and systems for locating a portable services access transceiver (PSAT) for use in aiding emergency “911” services. In one implementation, one or more conditions indicative of movement of a PSAT may initiate a process for obtaining a new estimated location of the PSAT. In another implementation, a location of a PSAT may be determined or updated using indoor navigation techniques.
Claims30
A method comprising, at a personal service access transceiver (PSAT):
- communicating with a location server to obtain indoor navigation assistance parameters;
- acquiring one or more indoor navigation signals;
- computing an estimate of a location of said PSAT based, at least in part, on application of characteristics of at least one of said acquired one or more indoor navigation signals to said indoor navigation assistance parameters;
- and
- indicating to said location server that said estimated location of said PSAT is unreliable based on a determination that said PSAT has been relocated.
A portable service access transceiver (PSAT) comprising:
- a receiver to acquire wirelessly transmitted signals;
- a processor configured to:
- communicate with a location server to obtain indoor navigation assistance parameters;
- obtain characteristics one or more indoor navigation signals acquired at said receiver;
- compute an estimate of a location of said PSAT based, at least in part, on application of characteristics of at least one of said acquired signals to said indoor navigation assistance parameters;
- and
- indicate to said location server that said estimated location of said PSAT is unreliable responsive to a determination that said PSAT has been relocated.
A method comprising, at a server:
- transmitting indoor navigation assistance parameters to a portable service access transceiver (PSAT);
- receiving an estimate of a location of said PSAT determined based, at least in part, on said transmitted indoor navigation assistance parameters;
- updating said indoor navigation assistance parameters in a storage medium to include said received estimate of said location of said PSAT and an identifier of said PSAT, said updated indoor navigation assistance parameters to be made available to mobile devices;
- and
- indicating to a location server that said estimated location of said PSAT is unreliable responsive to a determination that said PSAT has been relocated.
A server comprising:
- a communication interface;
- and
- one or more processors configured to:
- initiate transmission of indoor navigation assistance parameters to a portable service access transceiver (PSAT);
- obtain an estimate of a location of said PSAT, received at said communication interface, and determined based, at least in part, on said transmitted indoor navigation assistance parameters;
- update said indoor navigation assistance parameters in a storage medium to include said obtained estimate of said location of said PSAT and an identifier of said PSAT, said updated indoor navigation assistance parameters to be made available to mobile devices for positioning operations;
- and
- indicate to a location server that said estimated location of said PSAT is unreliable responsive to a determination that said PSAT has been relocated.
Dependencies are inferred from the claim text.