Systems and methods for location positioning of user device

Abstract

Devices, systems, and methods for gathering, calculating and sending positioning information at a user device to one or more networks. In a first implementation, a user device transforms pseudorange information relating to terrestrial beacons into GNSS pseudorange information. In a second implementation, a user device sends position information using GNSS information elements. In a third implementation, a user device sends position information using non-GNSS information elements.

1 - 20 . (canceled) 
     
     
         21 . A method for determining position data used to estimate a position of a receiver, the method comprising:
 determining a first set of estimated distances between a receiver and each of a plurality terrestrial transmitters based on positioning signals transmitted by each of the terrestrial transmitters; and   determining an estimated location of the receiver, wherein the estimated location is based on the first set of estimated distances.   
     
     
         22 . The method of  claim 21 , wherein the method comprises:
 determining a second set of estimated distances between a plurality of satellites and the estimated location of the receiver, wherein the second set of estimated distances is based on the estimated location of the receiver and constellation information associated with the plurality of satellites.   
     
     
         23 . The method of  claim 22 , wherein the method comprises:
 causing transmission of the second set of estimated distances to a computing device.   
     
     
         24 . The method of  claim 22 , wherein the estimated location of the receiver is further based on latitude, longitude and altitude parameters for each of the plurality of terrestrial transmitters. 
     
     
         25 . The method of  claim 24 , wherein the estimated location of the receiver is further based on a pressure measurements measured by a pressure sensor of the receiver. 
     
     
         26 . The method of  claim 22 , wherein constellation information associated with the satellites includes a position and a timing correction for each of the satellites at a reference time. 
     
     
         27 . The method of  claim 22 , wherein the method comprises:
 determining an estimated velocity of the receiver;   determining a first set of Doppler values for the satellites;   determining a second set of Doppler values based on the estimated velocity and the first set of Doppler values; and   transmitting the second set of Doppler values to a computing device.   
     
     
         28 . The method of  claim 22 , wherein the method comprises:
 transmitting the second set of estimated distances to a remote server using a standard protocol for transmitting GNSS positioning information in a cellular network.   
     
     
         29 . The method of  claim 22 , wherein the method comprises:
 transmitting the second set of estimated distances to the computing device using a standard protocol for transmitting GNSS positioning information in a cellular network.   
     
     
         30 . The method of  claim 22 , wherein the second set of estimated distances are transmitted to the computing device by mapping bits corresponding to the second set of estimated distances into a set of bits for GNSS information elements. 
     
     
         31 . The method of  claim 22 , wherein the method comprises:
 using assistance data to determine the estimated location of the receiver, wherein the assistance data specifies latitude, longitude, altitude, a pressure measurement, and a temperature measurement for each of the plurality of terrestrial transmitters.   
     
     
         32 . The method of  claim 31 , wherein the assistance data is accessed from a data source coupled to a computing device. 
     
     
         33 . The method of  claim 31 , wherein the assistance data is accessed via a control plane or a user plane communication channel. 
     
     
         34 . The method of  claim 21 , wherein the method comprises:
 using a first plurality of bits allocated for transmission of geographic positioning information to transmit the first set of estimated distances to a computing device.   
     
     
         35 . The method of  claim 34 , wherein the method comprises:
 transmitting, to the computing device, pressure and temperature measurements that correspond to atmospheric conditions at the receiver.   
     
     
         36 . The method of  claim 21 , wherein the method comprises:
 identifying one of more of the plurality of terrestrial transmitters based on its proximity to one or more corresponding cellular transmitters that are exchanging information with the receiver.   
     
     
         37 . One or more non-transitory computer usable media embodying computer readable program code adapted to be executed to implement a method for determining position data used to estimate a position of a receiver, the method comprising:
 determining a first set of estimated distances between a receiver and each of a plurality terrestrial transmitters based on positioning signals transmitted by each of the terrestrial transmitters; and   determining an estimated location of the receiver, wherein the estimated location is based on the first set of estimated distances.   
     
     
         38 . The one or more non-transitory computer usable media of  claim 37 , wherein the method comprises:
 determining a second set of estimated distances between a plurality of satellites and the estimated location of the receiver, wherein the second set of estimated distances is based on the estimated location of the receiver and constellation information associated with the plurality of satellites.   
     
     
         39 . A system for determining position data used to estimate a position of a receiver, the system operable to:
 determine a first set of estimated distances between a receiver and each of a plurality terrestrial transmitters based on positioning signals transmitted by each of the terrestrial transmitters; and   determine an estimated location of the receiver, wherein the estimated location is based on the first set of estimated distances.   
     
     
         40 . The system of  claim 39 , the system further operable to:
 determine a second set of estimated distances between a plurality of satellites and the estimated location of the receiver, wherein the second set of estimated distances is based on the estimated location of the receiver and constellation information associated with the plurality of satellites.