公开(公告)号：US20200163144A1

公开(公告)日：2020-05-21

申请号：US16690740

申请日：2019-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunheui RYOO ,  Hyungtaig LIM ,  Hwajin CHA ,  Janghwan KIM ,  Jeongyoon LEE

IPC: H04W76/16 ,  H04W76/30 ,  H04W76/20

Abstract: A method of a first base station in a communication system and an apparatus therefor are provided. The method includes determining an addition mode configured to add a second base station, identifying whether to add the second base station based on the addition mode, and performing a procedure of adding the second base station based on the second base station being identified as being added. The addition mode may indicate one of a combination of at least one of a blind addition, a traffic criterion addition and a measurement report criterion addition. The method may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related service) based on the 5th generation (5G) communication technology and Internet of Things (IoT)-related technology. The method and apparatus propose a connection management method in a dual connectivity system.

公开(公告)号：US20180317201A1

公开(公告)日：2018-11-01

申请号：US15772004

申请日：2016-10-28

Applicant: Samsung Electronics Co., Ltd

Inventor： Hwajin CHA ,  Sung Hwan WON ,  Jinuk LEE ,  Songyean CHO

IPC: H04W68/02 ,  H04W28/02 ,  H04L12/835 ,  H04L12/861 ,  H04W72/12

CPC classification number: H04W68/02 ,  H04L47/30 ,  H04L49/9089 ,  H04W28/02 ,  H04W28/0289 ,  H04W72/1242

Abstract: The present invention relates to a method and an apparatus for transmitting and receiving a paging message in a mobile communication system and, more particularly, to a method and an apparatus for determining a priority between paging messages at a wireless access point and paging a terminal. A method for paging a wireless access point in a mobile communication system according to an embodiment of the present invention comprises the steps of: receiving a plurality of paging messages from a core network; determining a priority between the plurality of paging messages; and transmitting the paging message to a terminal on the basis of the determined priority, wherein information on a number of paging attempts included in the paging messages is used for determining the priorities. The present disclosure relates to a 5G or pre-5G communication system that will be provided to support higher data rates than a post-4G communication system such as LTE.

公开(公告)号：US20190037457A1

公开(公告)日：2019-01-31

申请号：US16072300

申请日：2017-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chulhee JANG ,  Soenghun KIM ,  Eunyong KIM ,  Hwajin CHA

IPC: H04W36/02 ,  H04W74/08 ,  H04W36/08 ,  H04W36/38 ,  H04W36/00 ,  H04L1/16

CPC classification number: H04W36/02 ,  H04L1/1621 ,  H04W36/0005 ,  H04W36/08 ,  H04W36/38 ,  H04W74/08 ,  H04W74/0833 ,  H04W80/08 ,  H04W88/02 ,  H04W88/08

Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.

公开(公告)号：US20220353776A1

公开(公告)日：2022-11-03

申请号：US17864739

申请日：2022-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungbo YOO ,  Hyungtaig LIM ,  Hwajin CHA

IPC: H04W36/30 ,  H04W36/00

Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting higher data transfer rates than 4th generation (4G) communication systems such as long term evolution (LTE). According to various embodiments of the disclosure, a method for operating a base station in which a Master Cell Group (MCG) is configured in a wireless communication system may include: detecting a failure of a Primary Cell (PCell) of a Secondary Cell Group (SCG) (PScell), transmitting inter-Radio Access Technology (RAT) measurement configuration information to a terminal based on the detection, and transmitting information on a cell identified based on the measurement configuration information to a base station in which the SCG is configured.

公开(公告)号：US20190098546A1

公开(公告)日：2019-03-28

申请号：US16082510

申请日：2017-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hwajin CHA ,  Sung Hwan WON ,  Sunghoon KIM

IPC: H04W36/12 ,  H04W36/32 ,  H04W8/02 ,  H04W36/38 ,  H04W88/14

Abstract: The present invention relates to a method and an apparatus for supporting a handover and, more particularly, to a method and an apparatus for changing a mobile management entity while maintaining a connection state of a connection mode terminal. In order to achieve the above-mentioned objective, a method for supporting a handover of a serving mobile management entity (MME) according to one embodiment of the present invention comprises the steps of: receiving a tracking area update (TAU) request message from a terminal: determining whether the serving MME of the terminal needs to be changed, on the basis of the TAU request message; and transmitting, in the case where it is determined that the serving MME of the terminal needs to be changed, an MME change request message to an eNB.

公开(公告)号：US20190028879A1

公开(公告)日：2019-01-24

申请号：US16070990

申请日：2017-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chungkeun LEE ,  Hwajin CHA

IPC: H04W8/08 ,  H04W36/00 ,  H04W64/00 ,  H04W24/10 ,  H04W4/02 ,  H04W84/04

Abstract: A method and apparatus for performing a terminal trace in a wireless communication system is disclosed. A control method for a femto base station according to an embodiment of the present invention may comprise the steps of: after a terminal is handed over to the femto base station, receiving terminal trace activation information from a serving base station; and transmitting a message including the received terminal trace activation information to a femto gateway (HeNB gateway) so as to allow the femto gateway to trace the terminal.

公开(公告)号：US20190132782A1

公开(公告)日：2019-05-02

申请号：US16091831

申请日：2017-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghoon KIM ,  Sung Hwan WON ,  Hwajin CHA

IPC: H04W36/30 ,  H04W36/00 ,  H04W36/08

Abstract: Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety related services, and the like) on the basis of 5G communication technology and IoT related technologies. The present disclosure relates to a method by which a terminal receives a circuit switching (CS) service, and according to the present disclosure, the method by which a terminal receives a CS service, comprises the steps of: transmitting a CS fallback (CSFB) request to a mobility management entity (MME) through a first base station in order to use the CS service; detecting the failure of a radio resource connection to the first base station; and transmitting, to a second base station, a radio resource re-establishment related message including a CSFB indicator for identifying the CSFB request.

公开(公告)号：US20190110237A1

公开(公告)日：2019-04-11

申请号：US16094651

申请日：2017-04-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hwajin CHA ,  Suengjae BAE ,  Bumgon CHOI

IPC: H04W36/30 ,  H04W36/08

Abstract: The present invention relates to a method and an apparatus for supporting handover and, more particularly, to a method and an apparatus for adjusting handover related parameters. In order to achieve the above-described objective, a method for supporting handover by a base station in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting a handover parameter to a terminal, based on a handover purpose; receiving, from the terminal, a handover measurement report based on the handover parameter; storing information for the handover purpose; and transmitting, to a target base station, a handover request message including the information for the handover purpose.

公开(公告)号：US20170055314A1

公开(公告)日：2017-02-23

申请号：US15118603

申请日：2015-02-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hwajin CHA ,  Donmyoung LEE ,  Jungkap LEE ,  Hanseok KIM

IPC: H04W76/06 ,  H04W28/02 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04W76/38 ,  H04L5/0053 ,  H04W28/0252 ,  H04W28/0268 ,  H04W72/0446 ,  H04W72/085

Abstract: A terminal connection management method of the present invention comprises the steps of setting a signal timer corresponding to a signal bearer of a terminal and a data timer corresponding to a data bearer, confirming whether the signal timer and the data timer have expired, and disconnecting from the terminal if both of the signal timer and the data timer have expired.

Abstract translation: 本发明的终端连接管理方法包括以下步骤：设置对应于终端的信号承载的信号定时器和对应于数据承载的数据定时器，确认信号定时器和数据定时器是否已经过期， 终端如果信号定时器和数据定时器均已过期。