Patent · US Active

System and method for channel information exchange for time of flight range determination

US9261580B2 · kind B2 · utility

9Cited by
2References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 18, 2013
Grant dateFeb 16, 2016
Priority date
Expiry dateSep 18, 2033

Classification

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

Abstract

A system for time-of-flight (ToF) positioning in an IEEE 802.11 network comprises an initiating station that transmits a request frame over a channel to a responding station for a ToF position measurement. The responding station may respond with an offloading of the channel information, request frame receipt time, and response frame transmit time back to the initiating station to enable the initiating station to calculate the ToF position with respect to the responding station.

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