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. 19, 2017

Filed:

Aug. 21, 2015
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Amar Prakash Azad, Bangalore, IN;

Sujit Jos, Bangalore, IN;

Sandhya Patil, Bangalore, IN;

Kannan Govindan, Bangalore, IN;

Kiran Bynam, Jalahalli, IN;

Manoj Choudhary, Bangalore, IN;

Taeseok Kim, Hwaseong-si, KR;

Youngsoo Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 74/08 (2009.01); H04W 48/10 (2009.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0816 (2013.01); H04W 48/10 (2013.01); H04W 84/12 (2013.01);
Abstract

A method and apparatus for a collision-free carrier sense multiple access (CSMA) are provided. The method of a node associated with a beacon enabled carrier sense multiple access (CSMA)-based wireless communication network through an access point (AP) includes receiving a beacon from the AP, the beacon comprising a back-off prime number and a beacon random number, and generating a back-off interval based on the beacon random number, the back-off prime number, a mapped identification (ID) of the node, and a current time slot of a frame of the beacon. The method and apparatus provide a collision-free CSMA scheme for a beacon enabled CSMA-based wireless communication network. In the collision-free CSMA scheme, uniformly distributed back-off intervals may be generated in a distributed fashion at each node for a CSMA-based wireless communication network. The back-off intervals may be correlated among the nodes even though the nodes do not communicate with each other.


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