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. 24, 2008
Filed:
Nov. 25, 2005
Eun-hui Bae, Seoul, KR;
O-sok Song, Seoul, KR;
Sung-ho Choi, Suwon-si, KR;
Dong-ho Cho, Seoul, KR;
Hyun-ho Choi, Daejeon-si, KR;
Eun-Hui Bae, Seoul, KR;
O-Sok Song, Seoul, KR;
Sung-Ho Choi, Suwon-si, KR;
Dong-Ho Cho, Seoul, KR;
Hyun-Ho Choi, Daejeon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A seamless handoff system and method reduces delay and packet loss during handoff of user equipment (UE) from a Wireless Local Area Network (WLAN) network to a Universal Mobile Telecommunication System (UMTS) network. The handoff system and method performs pre-registration and pre-authentication processes before the occurrence of a handoff, buffers packets being delivered to a UE during a handoff period, and forwards the buffered packets to the UE after completion of the handoff, thereby reducing packet loss that can occur during handoff.