公开(公告)号：US10560876B2

公开(公告)日：2020-02-11

申请号：US15964847

申请日：2018-04-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Hwan Won ,  Songyean Cho ,  Erik Guttman

IPC: H04W88/02 ,  H04W36/00 ,  H04W28/02 ,  H04W76/28 ,  H04W4/029 ,  H04W36/02 ,  H04W4/06 ,  H04L12/18 ,  H04W76/40

Abstract: The present invention relates to a method and apparatus for group communication. In more detail, the present invention relates to a method and apparatus for allowing a terminal to participate in group communication effectively on the move, and a communication method of a base station in a mobile communication system according to the present invention includes receiving Multimedia Broadcast Multicast Service (MBMS) bearer information including a QoS parameter from a Multi-cell/multicast Coordination Entity (MCE); updating bearer information for a terminal using the received MBMS bearer information; making a handover decision of the terminal and transmitting a handover request message including the MBMS bearer information to a Mobility Management Entity (MME) or a second base station which does not support MBMS; transmitting a handover command message from the second base station to the terminal; and forwarding MBMS data to the second base station during a predetermined period. The group communication service reception method and apparatus of the present invention is advantageous in that a terminal participated in group communication is capable of receiving the group communication service seamlessly, even when the terminal enters an area not supporting MBMS, by switching the communication path to a Point-To-Point (PTP) communication path quickly.

公开(公告)号：US10476671B2

公开(公告)日：2019-11-12

申请号：US15325649

申请日：2015-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jonghan Park ,  Duckey Lee ,  Sangsoo Lee ,  Songyean Cho

IPC: H04W12/04 ,  H04L9/08 ,  H04W8/18 ,  H04W88/18 ,  H04W12/00 ,  H04B1/3816 ,  H04L29/06

Abstract: The present disclosure relates to a method and a device for installing a profile of an embedded universal integrated circuit boards (eUICC) and, more particularly, to a method and a device for remotely installing mobile communication subscriber information (profile) substituting for a universal integrated circuit boards (UICC), on a security module. In an aspect, a network device, acquires at least one of or more profiles encrypted with a first password key and one or more first password keys encrypted with a second password key; and when profile installation for the eUICC starts, transmits to, at least one eUICC, the one or more encrypted profiles and the one or more encrypted first password keys, wherein, prior to the transmission, each first password key is re-encrypted with a third password key for installation by the corresponding one or more eUICCs.

公开(公告)号：US10448450B2

公开(公告)日：2019-10-15

申请号：US15869377

申请日：2018-01-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngkyo Baek ,  Sangsoo Jeong ,  Songyean Cho

IPC: H04W76/50 ,  H04W4/90 ,  H04W8/02 ,  H04W8/18 ,  H04W68/02 ,  H04W76/00 ,  H04W36/18 ,  H04W76/30 ,  H04W4/02

Abstract: A method and a device for maintaining an emergency call service through a packet network in a mobile communication network are provided. UE using VoLTE receives identification information indicating whether an IMS Voice over PS (VoPS) is supported from a network to determine whether the IMS VoPS of the network is supported, and processes paging for a CS voice call according to the determination result if the emergency call service continues through the packet network.

公开(公告)号：US20190173797A1

公开(公告)日：2019-06-06

申请号：US16266300

申请日：2019-02-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangsoo Jeong ,  Songyean Cho ,  Beomsik Bae

IPC: H04L12/803 ,  H04W48/18 ,  H04W40/02 ,  H04W28/08 ,  H04W48/16

Abstract: A method for selecting an access network in a terminal of a mobile communication system according to one embodiment of the present specification comprises the steps of: if traffic is generated in the terminal, selecting an access network according to the characteristics of the generated traffic and network selection policy information; and transmitting and receiving the generated traffic via the selected access network. According to the embodiment, the present invention adjusts priorities of accesses given to users and applications in a wireless communication system including heterogenerous networks, thereby reducing processes for reselecting an access network of a user terminal, and reducing the cases of unnecessarily accessing a network having a low priority or requiring high costs for a long time. Therefore, the present invention can enhance user convenience and improve communication efficiency.

公开(公告)号：US10154444B2

公开(公告)日：2018-12-11

申请号：US15327367

申请日：2015-07-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Hwan Won ,  Songyean Cho

IPC: H04W36/08 ,  H04W76/18 ,  H04W24/10 ,  H04W36/38 ,  H04W24/02 ,  H04W36/00

Abstract: The present disclosure relates to a communication technique for combining a 5G communication system for supporting a higher data transmission rate after a 4G system with IoT technology, and a system thereof. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, and so on) on the basis of 5G communication technology and IoT related technology. The present disclosure can provide a method for supporting a handover and a base station performing the same. The method includes receiving a message including a Radio Link Failure (RLF) report for a terminal from at least another base station, and determining whether a cell in which an RRC connection reestablishment has been attempted by the terminal after the RLF is a cell that is suitable to serve the terminal at a time of RLF occurrence on the basis of at least one of RRC connection setup indicator information and the RLF report.

公开(公告)号：US10009187B2

公开(公告)日：2018-06-26

申请号：US14762659

申请日：2014-10-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Hwan Won ,  Songyean Cho ,  Erik Guttman

IPC: H04W88/02 ,  H04L12/18 ,  H04W28/02 ,  H04W76/28 ,  H04W4/06 ,  H04W36/00 ,  H04W36/02 ,  H04W76/40 ,  H04W4/02

CPC classification number: H04W36/0007 ,  H04L12/189 ,  H04W4/029 ,  H04W4/06 ,  H04W28/0268 ,  H04W36/02 ,  H04W76/28 ,  H04W76/40

Abstract: The present invention relates to a method and apparatus for group communication. In more detail, the present invention relates to a method and apparatus for allowing a terminal to participate in group communication effectively on the move, and a communication method of a base station in a mobile communication system according to the present invention includes receiving Multimedia Broadcast Multicast Service (MBMS) bearer information including a QoS parameter from a Multi-cell/multicast Coordination Entity (MCE); updating bearer information for a terminal using the received MBMS bearer information; making a handover decision of the terminal and transmitting a handover request message including the MBMS bearer information to a Mobility Management Entity (MME) or a second base station which does not support MBMS; transmitting a handover command message from the second base station to the terminal; and forwarding MBMS data to the second base station during a predetermined period. The group communication service reception method and apparatus of the present invention is advantageous in that a terminal participated in group communication is capable of receiving the group communication service seamlessly, even when the terminal enters an area not supporting MBMS, by switching the communication path to a Point-To-Point (PTP) communication path quickly.

公开(公告)号：US09986445B2

公开(公告)日：2018-05-29

申请号：US15146287

申请日：2016-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Hwan Won ,  Sangsoo Jeong ,  Songyean Cho

IPC: H04W24/02 ,  H04W60/04 ,  H04W36/32 ,  H04W60/00 ,  H04W36/00 ,  H04W36/30

CPC classification number: H04W24/02 ,  H04W36/0072 ,  H04W36/30 ,  H04W36/32 ,  H04W60/00 ,  H04W60/04

Abstract: A location registration method of a terminal in a mobile communication system is provided. The method transmitting a location registration request message to a network, waiting, when a reject message is received from the network in response to the location registration request message, until a radio connection with the network releases completely, and transmitting, when the radio connection is released, a new location registration request message to the network.

公开(公告)号：US09686725B2

公开(公告)日：2017-06-20

申请号：US14864161

申请日：2015-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Hwan Won ,  Sangbum Kim ,  Beomsik Bae ,  Hanna Lim ,  Sangsoo Jeong ,  Songyean Cho

IPC: H04W36/00 ,  H04W76/02 ,  H04W36/32 ,  H04W88/08

CPC classification number: H04W36/0083 ,  H04W36/0011 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0094 ,  H04W36/32 ,  H04W76/18 ,  H04W76/19 ,  H04W88/08

Abstract: A mobility parameter adjustment method and apparatus for use in a wireless communication system is provided. The mobility parameter adjustment method of a base station includes receiving connection failure information from a terminal, and adjusting a mobility adjustment parameter based on the connection failure information. The mobility parameter adjustment method and apparatus of the present disclosure is capable of adjusting mobility parameter efficiently so as to improve the mobility robustness of the wireless communication system and User Equipment (UE).

公开(公告)号：US20170094570A1

公开(公告)日：2017-03-30

申请号：US15311844

申请日：2015-05-18

Applicant: Samsung Electronics Co., Ltd

Inventor： Seonghun Kim ,  Sung Hwan Won ,  Sangsoo Jeong ,  Songyean Cho

IPC: H04W36/08 ,  H04W72/04 ,  H04W36/00

Abstract: Disclosed are: a communication method for incorporating an IoT technique with a 5G communication system for supporting a higher data transmission rate than that of a 4G system or a subsequent system; and a system therefor. The present invention can be applied to intelligent services (for example, services related to smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security, safety, and the like) on the basis of a 5G communication technique and IoT-related techniques. A method for transmitting and receiving a signal by a base station in a mobile communication system comprises the steps of: receiving a handover request message including a first information related to a device-to-device (D2D) service for a handover target terminal; and allocating D2D resources to the terminal based on the handover request message. A communication method and device of the base station and network equipment in the mobile communication system, according to the present invention, can quickly provide, to the base station to which the terminal moves, a D2D service authorized indication of the terminal for a PLMN provided from the base station of a region to which the terminal moves, even though the terminal moves to the region at which the different PLMNs are provided, and can allow the terminal to endlessly use the services, since the terminal is allocated with the resources for the D2D services during the movement thereof.

公开(公告)号：US09609496B2

公开(公告)日：2017-03-28

申请号：US13675305

申请日：2012-11-13

Applicant: Samsung Electronics Co. Ltd.

Inventor： Sangsoo Jeong ,  Hanna Lim ,  Songyean Cho

IPC: H04W4/22 ,  H04L29/06 ,  H04W4/00

CPC classification number: H04W4/90 ,  H04L65/1016 ,  H04L65/1069 ,  H04L65/1096 ,  H04W4/50

Abstract: A method and a terminal for acquiring information on the media supported by an emergency center to provide the terminal with the emergency call service using non-voice media as well voice media are provided. A method includes receiving information on media supported by an Internet Protocol (IP) Multimedia Subsystem (IMS) from a server, storing the information on the media supported by the IMS, and transmitting a signal to a Public Safety Answering Point (PSAP) based on the information on the media supported by the IMS and the terminal. The emergency call processing method of the present invention allows only the terminal capable of NOVES to perform the media information acquisition procedure, thereby avoiding overhead caused by media acquisition attempts of a large number of terminal.