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:
Jun. 28, 2011
Filed:
Aug. 21, 2007
Seung-kwon Baek, Daejeon, KR;
Jae-su Song, Daejeon, KR;
Yeon-seung Shin, Daejeon, KR;
Yeong-jin Kim, Daejeon, KR;
Seung-Kwon Baek, Daejeon, KR;
Jae-Su Song, Daejeon, KR;
Yeon-Seung Shin, Daejeon, KR;
Yeong-Jin Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
The present invention relates to a method of transmitting data in a handover between base stations. When a mobile terminal performs a handover between base stations in a wireless communication system, a gateway transmits data traffic to be transmitted to a mobile terminal by using an IGMP (Internet Group Management Protocol) to a serving base station being serviced to the mobile terminal and a target base station to which a handover of the mobile terminal is made in a bi-casting method. Accordingly, when the mobile terminal performs the handover between the base stations, the gateway transmits the data traffic in the bi-casting method. As a result, it is possible to efficiently use a resource of a user plane connection interval between the gateway and the base station, thereby minimizing the loss of data traffic transmitted in a downlink, that is, data.