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.

Date of Patent:
Aug. 22, 2017

Filed:

Nov. 02, 2016
Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Yoshio Urabe, Kanagawa, JP;

Junichi Morita, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04L 29/06 (2006.01); H04W 36/14 (2009.01); H04W 76/04 (2009.01); H04W 36/00 (2009.01); H04W 40/00 (2009.01);
U.S. Cl.
CPC ...
H04W 72/0453 (2013.01); H04L 29/06 (2013.01); H04L 69/28 (2013.01); H04W 36/0083 (2013.01); H04W 36/14 (2013.01); H04W 40/005 (2013.01); H04W 76/04 (2013.01);
Abstract

In a frequency band switching by Fast Session Transfer (FST), a timeout value (link loss timeout: LLT) is determined based on a change in a communication state, a switching setup sequence including a step of transmitting the determined timeout value to a peer wireless station is performed, and frequency switching to the second frequency band is performed when time of the timeout value elapses from when the switching setup sequence is completed. For example, a large timeout value (LLT=T1) is set at time of connection establishment, and the LLT is changed (LLT=T2 to T4) based on, for example, a state of transmission data or a change in a channel state.


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