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. 30, 2015
Filed:
May. 21, 2008
Eun-hui Bae, Seoul, KR;
Sung-ho Choi, Suwon-si, KR;
Jai-yong Lee, Seoul, KR;
Hyun-duk Jung, Seoul, KR;
Kyung-min Kim, Seoul, KR;
Eun-Hui Bae, Seoul, KR;
Sung-Ho Choi, Suwon-si, KR;
Jai-Yong Lee, Seoul, KR;
Hyun-Duk Jung, Seoul, KR;
Kyung-Min Kim, Seoul, KR;
Abstract
A method and apparatus for performing handover on a voice call between a packet network system and a circuit network system is provided. Considering a communication environment where a UE cannot simultaneously use radio resources of both the next generation mobile communication system (LTE) and the legacy mobile communication system (e.g., GSM/WCDMA), the present invention proposes an SCSE for performing signal translation between the packet switched network and the circuit switched network and anchoring a voice call in the application level, and supports a continuous voice call using the SCSE.