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:
Sep. 01, 2009
Filed:
May. 18, 2005
Jeong Ju Yoo, Daejeon, KR;
Tae Yeon Kim, Daejeon, KR;
Hyun Ho Yun, Daegu, KR;
Byoung Whi Kim, Daejeon, KR;
Nam Uk Kim, Daejeon, KR;
Jae Gwan Kim, Daejeon, KR;
Bok Rae Jung, Daejeon, KR;
Min Ho Kang, Daejeon, KR;
Jeong Ju Yoo, Daejeon, KR;
Tae Yeon Kim, Daejeon, KR;
Hyun Ho Yun, Daegu, KR;
Byoung Whi Kim, Daejeon, KR;
Nam Uk Kim, Daejeon, KR;
Jae Gwan Kim, Daejeon, KR;
Bok Rae Jung, Daejeon, KR;
Min Ho Kang, Daejeon, KR;
Abstract
The present provides a method of dynamically managing multicast groups and allocating multicast service wavelengths for the highest channel efficiency. According to the present invention, the share indices of wavelengths of all multicast service groups, which employ broadcasting wavelengths and data wavelengths, are periodically ascertained on the basis of IGMP snooping-based technology in a WDM-PON. Based on the ascertainment results, if the channel share index of the group that employs the broadcasting wavelength is smaller than the channel share index of the group that employs the data wavelength, the share index of the wavelength of the multicast group that employs the broadcasting wavelength is maximized by dynamically changing allocation of the wavelength of the multicast group, so that a maximum multicast service can be provided within limited resources.