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:
Dec. 04, 2012
Filed:
Nov. 07, 2008
Jung-hoon Cheon, Suwon-si, KR;
Jong-hyung Kwun, Seongnam-si, KR;
Jung-Hoon Cheon, Suwon-si, KR;
Jong-Hyung Kwun, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method is provided for providing a multicast service by a base station (BS) in a wireless communication system. The method includes transmitting an Ndata traffic corresponding to a multicast service to a plurality of mobile stations (MSs) through a multicast channel in an Fframe; determining whether a Negative Acknowledgement (NACK) message indicating a failure to receive the Ndata traffic is received from at least one MS in an (F+1)frame; and when the NACK message is received, retransmitting the Ndata traffic to an MS, which transmitted the NACK message, through an other channel different from the multicast channel in an (F+2)frame.