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:
Feb. 24, 2026
Filed:
May. 30, 2024
Mediatek Inc., Hsin-Chu, TW;
Ching-Chia Cheng, Hsinchu, TW;
MEDIATEK INC., Hsinchu, TW;
Abstract
A transmitter applies secure sequences on each symbol and each sub-carrier of K long training fields (LTFs). A receiver receives the K LTFs each having N symbols. An attack detection method for Wi-Fi secure ranging from the transmitter to the receiver includes using a channel estimation (CE) result of N symbols in a first LTF of the K LTFs to demodulate symbols in a Kth LTF of the K LTFs to obtain demodulated secure sequences of the symbols in the Kth LTF, generating respective bit error rates (BERs) of the N symbols in the Kth LTF by comparing applied secure sequences of the symbols in the Kth LTF with demodulated secure sequences of symbols in the Kth LTF, and verifying if the Kth LTF has been attacked according to the respective BERs of the N symbols in the Kth LTF and average BERs for the symbols in the Kth LTF.