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:
May. 14, 2013
Filed:
Nov. 17, 2010
Su-jin Bae, Suwon-si, KR;
Su-Jin Bae, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and apparatus for providing roaming service in a wireless communication system. A roaming gateway for performing communication between an Internet protocol multimedia subsystem (IMS) network and a circuit switched (CS) network receives an authentication request for a roaming mobile station (MS), which roams from an IMS network to a CS network, from a mobile service center (MSC) of the CS network, acquires authentication information for the roaming MS and service information for services, with which the roaming MS has been provided from the IMS network, at the authentication request, checks if the roaming MS is entitled to use the services according to the service information by using the authentication information and the service information, and sends an authentication success message to the MSC when the roaming MS is entitled to use the services.