Position accuracy estimation for geolocation systems
AssigneePHY Wireless, LLC
InventorsZeinab Shadram, Steven C. Thompson
Life of this patent
Estimating the term…
Abstract
A method for estimating positioning accuracy for a UE includes determining location information for base stations associated with a wireless communication network, performing a first positioning operation by receiving a first PRS from each of the base stations, determining first RSTD measurements based on the first PRS, estimating a first position of the UE based on the first RSTD measurements and the location information; and estimating an accuracy of the first position estimate based at least in part on the first position estimate and an actual location of the UE, and also include performing a second positioning operation based at least in part on the accuracy estimate determined for the first positioning operation.
Claims28
A method for estimating positioning accuracy for a user equipment (UE), the method performed by the UE and including:
- determining location information for a group of base stations associated with a wireless communication network;
- performing a first positioning operation by:
- receiving, over the wireless communication network, a first positioning reference signal (PRS) from each of the base stations;
- determining first reference signal time difference (RSTD) measurements based on the first PRS;
- estimating a first position of the UE based on the first RSTD measurements and the location information;
- and
- estimating an accuracy of the first position estimate based at least in part on the first position estimate and an actual location of the UE;
- and
- performing a second positioning operation based at least in part on the accuracy estimate determined for the first positioning operation.
A user equipment (UE) comprising:
- a transceiver;
- a processor coupled to the transceiver;
- and
- a memory storing instructions that, when executed by the processor, causes the wireless communication device to:
- determine location information for a group of base stations associated with a wireless communication network;
- perform a first positioning operation by:
- receiving, over the wireless communication network, a first positioning reference signal (PRS) from each of the base stations;
- determining first reference signal time difference (RSTD) measurements based on the first PRS;
- estimating a first position of the UE based on the first RSTD measurements and the location information;
- and
- estimating an accuracy of the first position estimate based at least in part on the first position estimate and an actual location of the UE;
- and
- perform a second positioning operation based at least in part on the accuracy estimate determined for the first positioning operation.
Dependencies are inferred from the claim text.