Patent · US Active

OTDOA in unlicensed band for enhancements of horizontal and vertical positioning

US9869750B2 · kind B2 · utility

4Cited by

1References

19Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Fang-Chen Cheng · Beijing, CN
Ren DA · Beijing, CN

Key dates

Filing date	Mar 31, 2015
Grant date	Jan 16, 2018
Priority date	—
Expiry date	Jun 10, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04W64/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A user equipment measures a time difference of arrival of a plurality of signals received at the user equipment, wherein at least one of the plurality of signals is received at the user equipment on at least one unlicensed band. The user equipment then reports the time difference of arrival measurements for the plurality of signals to a location computation center along with a time stamp for each of the measurements. The location computation center then determines the location of the user equipment based on the reported time difference of arrival measurements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.