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. 30, 2012
Filed:
Jun. 07, 2011
Wooyol Kim, Gwangmyeong-si, KR;
Kwanwoo Park, Seoul, KR;
Seungjin Ahn, Gunpo-si, KR;
Jinju Kim, Bucheon-si, KR;
Joondong Lee, Seoul, KR;
Ejae Kim, Incheon, KR;
Sangwoo Kim, Seoul, KR;
Jonghyun Jin, Seoul, KR;
Heechul Yoo, Gunpo-si, KR;
Kazumasa Nitta, Tokyo, KR;
Atsuto Miyata, Kanagawa, KR;
Kazuoki Ichikawa, Tokyo, KR;
Wooyol Kim, Gwangmyeong-si, KR;
Kwanwoo Park, Seoul, KR;
Seungjin Ahn, Gunpo-si, KR;
Jinju Kim, Bucheon-si, KR;
Joondong Lee, Seoul, KR;
Ejae Kim, Incheon, KR;
Sangwoo Kim, Seoul, KR;
Jonghyun Jin, Seoul, KR;
Heechul Yoo, Gunpo-si, KR;
Kazumasa Nitta, Tokyo, KR;
Atsuto Miyata, Kanagawa, KR;
Kazuoki Ichikawa, Tokyo, KR;
LG Electronics Inc., Seoul, KR;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A method for performing roaming in a dual mode terminal, which includes a first wireless communication module corresponding to a first communication network and a second wireless communication module corresponding to a second communication network, is disclosed. The method comprises acquiring a public land mobile network (PLMN) identifier by camping on the first communication network; determining whether connection to the first communication network is roaming by comparing roaming decision information included in the PLMN identifier with roaming decision information stored in the dual mode terminal; turning off the second wireless communication module if it is determined that connection to the first communication network is roaming; and transmitting and receiving a signal to and from the first communication network.