METHOD FOR SWITCHING DATA BETWEEN PLURALITY OF COMMUNICATIONS SYSTEMS AND APPARATUS THEREFOR

WIPO Patent Application WO/2014/148749

A1

A method for switching data between a plurality of communications systems according to the present invention is characterized by including the steps of: receiving a message from a first communications system having generated at least one data radio bearer (DRB) with a terminal for switching data to a second communications system; switching data to the second communications system based on the message; and carrying out data communication with the base station of the second communications system after switching data, wherein the message contains the information of all DRBs generated in the terminal or the information for indicating whether to keep the information of at least a particular one of the DRBs generated in the terminal, and the data switching operation is performed according to the information.

JP4906275	Pagingable Mode Systems and computer programs that facilitate data transfer in virtual environments
WO/2014/181735	HANDOVER METHOD AND WIRELESS BASE STATION
WO/1995/008901	METHOD FOR MAKING A HANDOVER IN A CDMA CELLULAR RADIO SYSTEM, AND A MOBILE STATION

LEE EUNJONG (KR)
CHOI HYEYOUNG (KR)
CHO HEEJEONG (KR)
HAHN GENEBECK (KR)

PCT/KR2014/001758

September 25, 2014

March 04, 2014

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LG ELECTRONICS INC (KR)

H04W36/18; H04W36/02

WO2012164363A1

2012-12-06

KR20120071997A	2012-07-03
KR101092822B1	2011-12-12

KIM, Yong In et al. (7th Floor 82 Olympic-ro,Songpa-ku, Seoul 138-861, KR)

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