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:
May. 16, 2017
Filed:
Jun. 02, 2006
Chunhui Zhu, San Jose, CA (US);
Myung-jong Lee, New York, NY (US);
Jun-seo Lee, Seoul, KR;
Rakesh Taori, Suwon-si, KR;
Sung-won Lee, Seoul, KR;
Chunhui Zhu, San Jose, CA (US);
Myung-Jong Lee, New York, NY (US);
Jun-Seo Lee, Seoul, KR;
Rakesh Taori, Suwon-si, KR;
Sung-Won Lee, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A system and method for controlling congestion using Request-to-Send (RTS) and Clear-to-Send (CTS) in a wireless mesh network are provided. A receiver in a congestion state sets a duration field value of congestion control in a CTS frame and transmits the CTS frame to a sender. In response, the sender retransmits an RTS frame to the receiver without transmitting data, after waiting for an RTS retransmission waiting time period corresponding to the duration field value. The congestion state information is broadcast to neighboring nodes. Therefore, the congestion control system using the CTS frame does not use a separate frame for the congestion control. And, all of the neighboring nodes can participate in the congestion control, increasing the network efficiency.