Timed fingerprint locating in wireless networks

摘要

A location of user equipment (UE) in a wireless network is determined. Geometric calculations are leveraged for an overlaid bin grid framework mapping the wireless network area to store differential values for each frame of the bin grid framework for each pair of relevant NodeBs. A timing offset can be determined, such that when a time value from a target UE is accessed, the location can be quickly determined. The target UE time value can be searched for in the pre-computed differential value data set indexed by a relevant NodeB site pair to return a set of frames (forming a hyperbola between the site pair) that can be intersected with a second set of frames for a second NodeB site pair for the same UE. The intersecting frames can represent the location of the UE in the wireless network and timing in the network is correctable based on the data.

主权项

1. A method, comprising:
receiving, by a system comprising a processor, a first observed time value associated with radio links between a first pair of radio devices of a wireless network and a user equipment; receiving, by the system, a data set comprising location information correlated to a first reference differential time value related to the first pair of radio devices, and a first reference observed time value associated with the first pair of radio devices; determining, by the system, a first differential time value based on the first observed time value; and determining, by the system, location information from the data set based on the first differential time value wherein the location information facilitates determining a location of the user equipment.