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:
Nov. 13, 2018

Filed:

Feb. 23, 2016
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Ching-Yao Wang, Zhubei, TW;

Lyu-Han Chen, Taoyuan, TW;

Hung-Wei Lin, Taibao, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/08 (2006.01); H04L 29/12 (2006.01); G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
H04L 61/2589 (2013.01); H04L 61/2514 (2013.01); H04L 61/2517 (2013.01); H04L 61/2575 (2013.01); H04L 67/104 (2013.01);
Abstract

A method and a communication device for network address translation (NAT) traversal is provided. The method includes following steps. A NAT device information is exchanged between a communication device and another communication device. A relay connection is established between the communication device and the another communication device through a relay server. Whether it is feasible to establish a P2P connection between the communication device and the another communication device is determined according to the NAT device information. When it is feasible to establish the P2P connection between the communication device and the another communication device, an attempt to establish the P2P connection between the communication device and the another communication device is made. If the P2P connection is not established successfully, an attempt to establish the P2P connection between the communication device and the another communication device is made again.


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