Patent · US Active

System and method for channel feedback for location time of flight

US9304186B2 · kind B2 · utility

12Cited by

2References

16Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Yuval Amizur · Kfar Sava, IL
Leor Banin · Netanya, IL
Uri Schatzberg · Kiryat Ono, IL

Key dates

Filing date	Sep 18, 2013
Grant date	Apr 5, 2016
Priority date	—
Expiry date	Sep 18, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and system for time-of-flight (ToF) positioning in an IEEE 802.11 network comprises a responder station to transmit samples of preambles as the preambles are received. The samples represent channel information. The preambles comprise extension high-throughput long training fields (HT-LTFs). An initiator station is arranged to perform a time-of-arrival calculation based at least in part on an analysis of the channel information.

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