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:
Oct. 23, 2007
Filed:
Sep. 10, 2003
Jae-yoon Song, Songnam-shi, KR;
Jin-hee Kim, Suwon-shi, KR;
A-jung Kim, Seoul, KR;
Min-hyo Lee, Suwon-shi, KR;
Se-youn Lim, Seoul, KR;
Su-hyung Kim, Seoul, KR;
Jong-ho Yoon, Koyang-shi, KR;
Jae-Yoon Song, Songnam-shi, KR;
Jin-Hee Kim, Suwon-shi, KR;
A-Jung Kim, Seoul, KR;
Min-Hyo Lee, Suwon-shi, KR;
Se-Youn Lim, Seoul, KR;
Su-Hyung Kim, Seoul, KR;
Jong-Ho Yoon, Koyang-shi, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Di, KR;
Abstract
A method for checking whether a transmission is a multicast transmission or not is disclosed, which includes in an Ethernet passive optical network including an OLT and multiple ONUs connected to the OLT, checking whether a transmission is a multicast transmission or not by generating a multicast LLID that represents multicast information. Subsequently from a multicast MAC address in a MAC layer in the multiple ONUs or the OLT, so that at least one ONU from among the multiple ONUs or the OLT receives the multicast transmission, the method comprising the steps of: (1) modifying the multicast MAC address and mapping the modified address to a LLID field in a RS layer below the MAC layer; and (2) generating mode information, which represents a multicast transmission, being adjacent to the LLID field and locating the mode information, wherein, the RS layer checks whether a transmission transmitted to the ONU or the OLT is a multicast transmission or not.