公开(公告)号：US20220232374A1

公开(公告)日：2022-07-21

申请号：US17712429

申请日：2022-04-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungbo YOO ,  Daejoong KIM ,  Hoon CHANG ,  Namryul JEON

IPC: H04W12/041 ,  H04W24/10 ,  H04W36/04 ,  H04W12/0433 ,  H04W76/27 ,  H04W36/00 ,  H04W36/08 ,  H04W74/08 ,  H04W80/02 ,  H04W80/08

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A handover method for a terminal according to one embodiment of the present disclosure may include: receiving, from a source cell, a message including information on one or more target cells for performing a fast handover; and performing a fast handover by reusing a radio bearer based on the received information.

公开(公告)号：US20200068639A1

公开(公告)日：2020-02-27

申请号：US16552961

申请日：2019-08-27

Applicant: Samsung Electronics Co., Ltd

Inventor： Taesung KIM ,  Janghwan KIM ,  Seungbo YOO

IPC: H04W76/16

Abstract: The present disclosure relates to a communication method and system for converging a 4th-Generation (4G) communication system or a 5th-Generation (5G) communication system for supporting higher data rates beyond the 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a central unit-control plane (CU-CP) included in a secondary node (SN) (or secondary gNB (SgNB)) in a wireless communication system supporting evolved universal terrestrial radio access and new radio dual connectivity (EN-DC) includes receiving, from a master node (MN) (or master eNB (MeNB)), a first message for requesting the SgNB to allocate a radio resource for a bearer, and transmitting a second message, including indication information indicating whether a packet data convergence protocol (PDCP) version of the bearer has been changed, to the CU-UP included in the SgNB. The indication information is generated based on the first message.