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:
Dec. 31, 2024
Filed:
Oct. 22, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Makoto Umehara, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides a mechanism for reducing residual frequency differences in distributed MIMO using a slave trigger, and increasing synchronization precision between APs. The communication device, which constitutes a wireless network by cooperating with another communication device, has a transmission unit for transmitting a frame for synchronization to the other communication device to cooperate with the other communication device. The transmission unit includes: a setting unit that sets a value exceeding 4 as a repetition number for an EHT Long Training Field (EHT-LTF) in a preset position of an EHT Signal Field (EHT-SIG-A) of a frame for synchronization; and a generation unit that generates a frame for synchronization, the frame including EHT-LTFs whose quantity is the set repetition number. The transmission unit transmits the generated frame to the other communication device.