The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2021
Filed:
Jul. 31, 2018
Nxp Usa, Inc., Austin, TX (US);
Liwen Chu, San Ramon, CA (US);
Christian Berger, San Jose, CA (US);
Niranjan Grandhe, San Jose, CA (US);
Hongyuan Zhang, Fremont, CA (US);
Hui-Ling Lou, Sunnyvale, CA (US);
NXP USA, INC., Austin, TX (US);
Abstract
A communication device determines an identifier of a wireless network with which the communication device is not associated. While the communication device is not associated with the wireless network, the communication device participates in a ranging procedure with an access point (AP) of the wireless network. The ranging procedure is for estimating a distance between the communication device and the AP based on measuring times of flight of transmissions between the communication device and the AP. Participating in the ranging procedure includes: the communication device transmitting a packet to the AP as part of the ranging procedure. The packet includes a PHY preamble, and the PHY preamble includes a signal field. The signal field includes a wireless network identifier subfield set to the identifier of the wireless network.