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:
Jul. 19, 2011
Filed:
Mar. 10, 2005
Jae-young Ju, Gyeonggi-do, KR;
Young-ho Joo, Gyeonggi-do, KR;
Hyun-wook Kim, Gyeonggi-do, KR;
Young-lak Kim, Gyeonggi-do, KR;
Jae-Young Ju, Gyeonggi-do, KR;
Young-Ho Joo, Gyeonggi-do, KR;
Hyun-Wook Kim, Gyeonggi-do, KR;
Young-Lak Kim, Gyeonggi-do, KR;
SK Telecom Co., Ltd., Seoul, KR;
Abstract
A method of handover in a wireless communication system in which an asynchronous system and a synchronous system are mixed is disclosed. The method comprises the steps of: the asynchronous system ordering a dual mode mobile terminal to perform a handover from the asynchronous system to the synchronous system; when the handover order is received at the mobile terminal, the mobile terminal transmitting a frame or a preamble through a reverse traffic channel to the synchronous system, reporting to the synchronous system that the handover is completed and initiating a timer of the mobile terminal which is set according to a predetermined time; the mobile terminal switching from an asynchronous vocoder into a synchronous vocoder when the timer expires; and the wireless communication system switching vocoders of asynchronous and synchronous MSCs when the report is received.