US 9,813,876 B2
Enhanced location based services
Stalin Fernando Albanes, Atlanta, GA (US); Ming-Ju Ho, Alpharetta, GA (US); and Craig Mullings, Loxahatchee, FL (US)
Assigned to AT&T Mobility II LLC, Atlanta, GA (US)
Filed by AT&T Mobility II LLC, Atlanta, GA (US)
Filed on Nov. 6, 2015, as Appl. No. 14/934,407.
Application 14/934,407 is a continuation of application No. 14/336,547, filed on Jul. 21, 2014, granted, now 9,185,520.
Application 14/336,547 is a continuation of application No. 13/705,382, filed on Dec. 5, 2012, granted, now 8,818,410, issued on Aug. 26, 2014.
Prior Publication US 2016/0066161 A1, Mar. 3, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 68/00 (2009.01); H04W 4/04 (2009.01); H04W 4/02 (2009.01); H04W 4/22 (2009.01); H04W 64/00 (2009.01); G01S 19/11 (2010.01); G01S 19/48 (2010.01); G01S 5/02 (2010.01)
CPC H04W 4/043 (2013.01) [G01S 5/0263 (2013.01); G01S 19/11 (2013.01); G01S 19/48 (2013.01); H04W 4/02 (2013.01); H04W 4/22 (2013.01); H04W 64/00 (2013.01); H04W 64/003 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
receiving global positioning system (GPS) information from a GPS antenna, the GPS information indicative of a GPS antenna location;
causing each of a plurality of transceivers to transmit a location signal, wherein each of the plurality of transceivers receives a response from a device;
from each of the plurality of transceivers, receiving a location response signal, wherein each of the location response signals is indicative of an identity of the respective transceiver and a delay between transmission of the location signal and receipt of the response by the respective transceiver;
determining an estimated location associated with the device based on the location response signals;
receiving topographic information of an environment proximate to the GPS antenna location;
determining an augmented location associated with the device by augmenting the GPS antenna location with the estimated location; and
associating the topographic information with the augmented location.