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:
Sep. 24, 2019

Filed:

Dec. 27, 2016
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Hua-Lung Tsai, Taipei, TW;

Chorng-Ren Sheu, Kaohsiung, TW;

Chun-Yi Wei, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/04 (2006.01); H04L 12/801 (2013.01); H04W 56/00 (2009.01); H04W 84/00 (2009.01);
U.S. Cl.
CPC ...
H04L 7/042 (2013.01); H04L 47/17 (2013.01); H04L 47/29 (2013.01); H04W 56/00 (2013.01); H04W 56/0015 (2013.01); H04W 84/00 (2013.01);
Abstract

A method for receiving and transmitting synchronization signal is provided. The method is applicable to a wireless communication device. The wireless communication device has a local timing. The method includes the following steps. Receive at least one synchronization signal. If a signal power of at least one of the at least one synchronization signal is greater than or equal to a signal power threshold, select one of the at least one synchronization signal as a reference synchronization signal according to a priority rule, and synchronize the local timing to the reference synchronization signal. If the signal power of each the synchronization signal is less than the signal power threshold, send a local synchronization signal according to the local timing. If the reference synchronization signal meets a forwarding criterion, forward the reference synchronization signal, wherein the forwarding criterion includes a power constraint and a hop count constraint.


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