公开(公告)号：US10454551B2

公开(公告)日：2019-10-22

申请号：US15466284

申请日：2017-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Kyu Baek ,  Young-Bin Chang ,  Sang-Wook Kwon ,  Young-Joong Mok ,  June Hwang

IPC: H04B7/06 ,  H04W16/28 ,  H04W36/00 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10 ,  H04B14/00 ,  H04W36/30

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 communication method and apparatus using beamforming are provided. The method includes acquiring transmission beam specific, measurement information of a base station (BS) and measuring a reference signal (RS) transmitted through transmission beams of the BS according to the transmission beam specific, measurement information. The measurement information on each transmission beam is determined according to at least one of an elevation angle of the corresponding transmission beam, an azimuth of the corresponding transmission beam, a handover urgency, information on a handover failure, and information on a radio link failure (RLF). A mobile station (MS) may perform a measurement report or a handover process according to a result of the measurement.

公开(公告)号：US10305561B2

公开(公告)日：2019-05-28

申请号：US14952299

申请日：2015-11-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Kyu Baek ,  Young-Bin Chang ,  Sang-Wook Kwon ,  Young-Joong Mok ,  June Hwang

IPC: H04B7/06 ,  H04W16/28 ,  H04W36/00 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10 ,  H04B14/00 ,  H04W36/30

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 communication method and apparatus using beamforming are provided. The method includes acquiring transmission beam specific, measurement information of a base station (BS) and measuring a reference signal (RS) transmitted through transmission beams of the BS according to the transmission beam specific, measurement information. The measurement information on each transmission beam is determined according to at least one of an elevation angle of the corresponding transmission beam, an azimuth of the corresponding transmission beam, a handover urgency, information on a handover failure, and information on a radio link failure (RLF). A mobile station (MS) may perform a measurement report or a handover process according to a result of the measurement.

公开(公告)号：US10075991B2

公开(公告)日：2018-09-11

申请号：US14781773

申请日：2014-04-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Kyu Kim ,  Young-Bin Chang ,  Seung-Hoon Park ,  Sang-Kyu Baek ,  Sung-Jin Lee

IPC: H04W4/00 ,  H04W76/14 ,  H04W76/27 ,  H04W8/00 ,  H04W88/06 ,  H04W88/08

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W76/27 ,  H04W88/06 ,  H04W88/08

Abstract: A method and apparatus for performing a state transition for Device to Device (D2D) communication are provided. The method includes determining whether D2D initiation is required, while a terminal is operating in a first or a second state defined by EPS (Enhanced Packet System) Mobility Management (EMM)-Deregistered and EPS Connection Management (ECM)-IDLE at a Non-Access Stratum (NAS) layer and Radio Resource Control (RRC)-IDLE. If the D2D initiation is required, the method includes transitioning to a third state defined by EMM-Registered and ECM/RRC-Connected and performing the D2D initiation through a mobile communication network. If a deactivation condition is satisfied or a D2D state update is completed in the third state, the method includes transitioning to a fourth state defined by EMM-Registered and ECM/RRC-IDLE, and if a state update or scheduling for D2D communication is required in the fourth state, the method includes transitioning to the third state.

公开(公告)号：US10009949B2

公开(公告)日：2018-06-26

申请号：US15473236

申请日：2017-03-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Kyu Kim ,  Young-Bin Chang ,  Seung-Hoon Park ,  Sang-Kyu Baek ,  Sung-Jin Lee

IPC: H04W4/00 ,  H04W76/14 ,  H04W76/27 ,  H04W76/02 ,  H04W76/04 ,  H04W8/00 ,  H04W88/06 ,  H04W88/08

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W76/27 ,  H04W88/06 ,  H04W88/08

Abstract: A method and apparatus for performing a state transition for Device to Device (D2D) communication are provided. The method includes determining whether D2D initiation is required, while a terminal is operating in a first or a second state defined by EPS (Enhanced Packet System) Mobility Management (EMM)-Deregistered and EPS Connection Management (ECM)-IDLE at a Non-Access Stratum (NAS) layer and Radio Resource Control (RRC)-IDLE. If the D2D initiation is required, the method includes transitioning to a third state defined by EMM-Registered and ECM/RRC-Connected and performing the D2D initiation through a mobile communication network. If a deactivation condition is satisfied or a D2D state update is completed in the third state, the method includes transitioning to a fourth state defined by EMM-Registered and ECM/RRC-IDLE, and if a state update or scheduling for D2D communication is required in the fourth state, the method includes transitioning to the third state.

公开(公告)号：US09730187B2

公开(公告)日：2017-08-08

申请号：US14904645

申请日：2014-07-14

Applicant: Samsung Electronics Co., Ltd

Inventor： Seung-Hoon Park ,  Kyung-Kyu Kim ,  Dae-Gyun Kim ,  Hyun-Seok Ryu ,  Young-Joong Mok ,  Sang-Kyu Baek ,  Chi-Woo Lim ,  Young-Bin Chang

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W72/02 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1257

Abstract: An apparatus is configured to perform a method for performing distributed scheduling by a reception device configuring a target link corresponding to one of a plurality of links in a network in which the plurality of links for device to device communication exist. The method includes adding up resource allocation demand amounts included in resource information broadcasted by a counterpart device configuring the target link and one or more adjacent transmission devices by a preset Resource Unit (RU), and adjusting self resource information in consideration of resource position information included in the broadcasted resource information and the added resource allocation demand amount and transmitting the adjusted self resource information to the counterpart transmission device.

公开(公告)号：US20170207828A1

公开(公告)日：2017-07-20

申请号：US15479179

申请日：2017-04-04

Applicant: Samsung Electronics Co., Ltd

Inventor： Jung-Soo Jung ,  Hyun-Jeong Kang ,  Young-Bin Chang ,  Suk-Won Kim ,  Sang-Kyu Baek

IPC: H04B7/0408 ,  H04B7/06 ,  H04W4/02 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B7/0408 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/0048 ,  H04W4/027 ,  H04W64/006 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/08 ,  H04W88/08

Abstract: A method of providing an optimal transmission or reception (Tx/Rx) beam in a beamforming system. The method includes receiving a reference signal and selecting an optimal Tx/Rx beam that guarantees an optimal channel environment based on the received reference signal determining a possibility of occurrence of a Tx/Rx beam mismatch between the selected optimal Tx/Rx beam and a Tx/Rx beam used for transmitting information on the selected optimal Tx/Rx beam; and when there is the possibility of the occurrence of the Tx/Rx beam mismatch, performing at least one of widening a beam width of the Tx/Rx beam, increasing a number of Tx/Rx beams, reducing a period of a beam selection operation for selecting the optimal Tx/Rx beam, and reducing a transmission period of the reference signal. Other embodiments including a beamforming system are also disclosed.

公开(公告)号：US09654967B2

公开(公告)日：2017-05-16

申请号：US14280013

申请日：2014-05-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Kyu Kim ,  Young-Kyo Baek ,  Sang-Kyu Baek ,  Young-Bin Chang ,  Song-Yean Cho

IPC: H04W12/02 ,  H04L29/06 ,  H04W8/00 ,  H04W12/04 ,  H04L29/08 ,  H04W4/20

CPC classification number: H04W12/02 ,  H04L63/0428 ,  H04L67/16 ,  H04W4/21 ,  H04W8/005 ,  H04W12/04

Abstract: A discovery method for Device-to-Device (D2D) communication is provided. A terminal transmits a discovery service request message for D2D communication including one of application information and group information for a Proximity based Service (ProSe) to a server. The terminal receives, from the server, a discovery service key delivery message including a discovery service key corresponding to the one of the application information and the group information for a ProSe. The terminal acquires the discovery service key by decrypting the discovery service key delivery message, and performs discovery by encrypting a discovery code with the acquired discovery service key.

公开(公告)号：US09603175B2

公开(公告)日：2017-03-21

申请号：US14322873

申请日：2014-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Kyu Baek ,  Ki-Suk Kweon ,  Young-Bin Chang ,  Kyung-Kyu Kim ,  Hyun-Seok Ryu ,  Seung-Hoon Park ,  Sung-Jin Lee

IPC: H04W76/02 ,  H04W36/00

CPC classification number: H04W76/14 ,  H04W36/00

Abstract: A method for controlling a path between terminals in a wireless communication system includes measuring a channel quality of a direct path with the another terminal when receiving a request for measuring the channel quality of the direct path from a higher entity, transmitting a first message comprising a result of the measuring the channel quality to the higher entity, and, when receiving a second message to instruct to switch to the direct path from the higher entity, setting the direct path with the another terminal. another embodiments including a terminal and a network entity are also disclosed.

公开(公告)号：US20140341121A1

公开(公告)日：2014-11-20

申请号：US14120269

申请日：2014-05-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Bin Chang ,  Kyung-Kyu Kim ,  Seung-Hoon Park ,  Sang-Kyu Baek

IPC: H04W40/24

CPC classification number: H04W40/246 ,  H04W8/005

Abstract: A method and an apparatus for direct communication between User Equipments (UEs) in a wireless communication system are provided. A method for communicating with a second UE by a first UE in the wireless communication system includes generating a discovery code used for communicating with the second UE, and transmitting the generated discovery code to one middle layer among a plurality of layers.

Abstract translation: 提供了一种在无线通信系统中的用户设备（UE）之间进行直接通信的方法和装置。 一种在无线通信系统中由第一UE与第二UE进行通信的方法包括生成用于与第二UE进行通信的发现代码，并将生成的发现代码发送到多个层中的一个中间层。

公开(公告)号：US20140323143A1

公开(公告)日：2014-10-30

申请号：US14266555

申请日：2014-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-Soo Jung ,  Hyun-Jeong Kang ,  Young-Bin Chang ,  Suk-Won Kim ,  Sang-Kyu Baek

IPC: H04B7/04 ,  H04W64/00 ,  H04W88/08 ,  H04W72/04

CPC classification number: H04B7/0408 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/0048 ,  H04W4/027 ,  H04W64/006 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/08 ,  H04W88/08

Abstract: A method of providing an optimal transmission or reception (Tx/Rx) beam in a beamforming system. The method includes receiving a reference signal and selecting an optimal Tx/Rx beam that guarantees an optimal channel environment based on the received reference signal determining a possibility of occurrence of a Tx/Rx beam mismatch between the selected optimal Tx/Rx beam and a Tx/Rx beam used for transmitting information on the selected optimal Tx/Rx beam; and when there is the possibility of the occurrence of the Tx/Rx beam mismatch, performing at least one of widening a beam width of the Tx/Rx beam, increasing a number of Tx/Rx beams, reducing a period of a beam selection operation for selecting the optimal Tx/Rx beam, and reducing a transmission period of the reference signal. Other embodiments including a beamforming system are also disclosed.

Abstract translation: 一种在波束成形系统中提供最佳发射或接收（Tx / Rx）波束的方法。 该方法包括接收参考信号并选择基于接收到的参考信号确保最佳信道环境的最佳Tx / Rx波束，该参考信号确定所选择的最佳Tx / Rx波束与Tx之间发生Tx / Rx波束失配的可能性 / Rx波束，用于在所选择的最佳Tx / Rx波束上传输信息; 并且当存在发生Tx / Rx波束不匹配的可能性时，执行加宽Tx / Rx波束的波束宽度，增加Tx / Rx波束的数量中的至少一个，减少波束选择操作的周期 用于选择最佳Tx / Rx波束，并减少参考信号的传输周期。 还公开了包括波束形成系统的其它实施例。