公开(公告)号：US10757750B2

公开(公告)日：2020-08-25

申请号：US15877738

申请日：2018-01-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W4/00 ,  H04W76/28 ,  H04W76/14 ,  H04W76/19

Abstract: A method and an apparatus for monitoring device-to-device (D2D) transmission in a connected state in a communication system supportive of a D2D scheme are provided. The method includes monitoring, by a D2D user equipment (UE), a D2D transmission during a D2D resource cycle and a discontinuous reception (DRX) cycle in a radio resource control (RRC) state, transmitting an indication including a capability of the UE to a base station, and reestablishing an RRC connection from the base station, wherein the D2D resource cycle and the DRX cycle are configured not to overlap each other based on the indication.

公开(公告)号：US10681754B2

公开(公告)日：2020-06-09

申请号：US15023926

申请日：2014-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W76/14 ,  H04W8/02 ,  H04W8/00 ,  H04W84/04 ,  H04L29/02

Abstract: A method for establishing a network controlled direct connection by a first user equipment (UE) in a communication system supporting a device to device (D2D) scheme is provided. The method includes discovering a second UE, determining to establish a direct connection with the second UE, transmitting a direct connection request message to a mobility management entity (MME), and establishing a radio resource control (RRC) connection with the MME after transmitting the direct connection request message.

公开(公告)号：US10652939B2

公开(公告)日：2020-05-12

申请号：US15324854

申请日：2016-04-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  June Hwang ,  Young-Bin Chang

IPC: H04W4/00 ,  H04W76/14 ,  H04W76/20 ,  H04W48/10 ,  H04W8/00 ,  H04W40/12 ,  H04W88/04 ,  H04W40/24 ,  H04B17/318 ,  H04W76/23 ,  H04W40/22 ,  H04W48/12

Abstract: A device-to-device (D2D) communication method is provided. The D2D communication method includes the operations of receiving, by a first terminal, system information including a threshold value for link quality with a base station (BS) from the BS, measuring, by the first terminal, the strength of a signal from a serving cell, comparing, by the first terminal, the measured strength of the signal with the threshold value, and searching for a second terminal acting as a relay between the first terminal and a network when the measured strength of the signal is less than the threshold value on the basis of the compared result.

公开(公告)号：US10542469B2

公开(公告)日：2020-01-21

申请号：US15243348

申请日：2016-08-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Sang-Wook Kwon ,  Kyung-Kyu Kim ,  Young-Joong Mok ,  Sang-Kyu Baek ,  Anil Agiwal ,  Young-Bin Chang ,  June Hwang

IPC: H04W36/00

Abstract: The present disclosure relates to 5th generation (5G) or pre-5G communication systems for supporting higher data transfer rates, following the 4th generation (4G) communication systems, such as long term evolution (LTE). A method for supporting handover with multi-connectivity in a wireless communication system is provided. The method includes sending a measurement report message including information of at least one small base station (eNB) to a macro cell eNB, receiving information of a new small eNB in a target cell from the macro cell eNB based on the measurement report message, and performing a random access procedure with the new small eNB in the target cell based on handover.

公开(公告)号：US10531484B2

公开(公告)日：2020-01-07

申请号：US15796628

申请日：2017-10-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Wook Kwon ,  Anil Agiwal ,  Young-Bin Chang

IPC: H04W72/14 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure relates 5G or pre-5G communication systems for supporting higher data transmission rate than those by LTE or other post-4G communication systems. According to an embodiment of the present disclosure, a method for allocating a resource in a communication system includes determining a beam to be used for data communication between a UE and the base station based on beam feedback information from the UE. The method also includes releasing resource allocation for a beam used previously depending on whether the determined beam is changed from the previously used beam, allocating a resource for the determined beam, and transmitting information related to the resource allocation for the determined beam to the UE.

公开(公告)号：US10485038B2

公开(公告)日：2019-11-19

申请号：US15505912

申请日：2016-06-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  June Hwang ,  Hyun-Seok Ryu ,  Young-Bin Chang

IPC: H04W76/14 ,  H04W8/00 ,  H04W24/08 ,  H04W88/04 ,  H04W76/10

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. The method for device to device communication according to the present disclosure comprises: a step of receiving, by a terminal, search data from search resources for relay search within a specified search-receiving resource pool, and decoding the same; a step of measuring, by the terminal, link qualities of the search resources which deliver demodulation reference signals, from the search resources corresponding to successfully decoded search data; and a step of filtering a link quality corresponding to an identifier of a specific relay among the measured link qualities.

公开(公告)号：US10383034B2

公开(公告)日：2019-08-13

申请号：US14910216

申请日：2014-08-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W4/00 ,  H04W48/08 ,  H04W72/04 ,  H04W48/16 ,  H04W28/06

Abstract: A method and an apparatus for transmitting and receiving resource allocation information in a wireless communication system are provided. The method includes allocating resources for each of one or more device-to-device (D2D) discovery resources pools, generating information related to resources allocated for each of the one or more D2D discovery resource pools, and transmitting the generated information.

公开(公告)号：US10063371B2

公开(公告)日：2018-08-28

申请号：US14928184

申请日：2015-10-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Rajavelsamy Rajadurai ,  Young-Bin Chang

IPC: H04L29/06 ,  H04L9/08 ,  H04W8/00 ,  H04W12/10 ,  H04W12/02 ,  H04W12/04

CPC classification number: H04L9/0861 ,  H04L9/0833 ,  H04L63/162 ,  H04L63/205 ,  H04L69/22 ,  H04L2209/80 ,  H04W12/0013 ,  H04W12/02 ,  H04W12/04

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). In accordance with an aspect of the present disclosure, a method of transmitting data in a device to device communication system is provided. The method includes determining whether a security feature is applied to one or more packet data convergence protocol (PDCP) data units, configuring the one or more PDCP data units based on the determined result, and transmitting the one or more PDCP data units to one or more receiving user equipments (UEs).

公开(公告)号：US10009750B2

公开(公告)日：2018-06-26

申请号：US15646031

申请日：2017-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W8/00 ,  H04W52/02 ,  H04W72/04 ,  H04W48/18 ,  H04W88/06 ,  H04W84/04

CPC classification number: H04W8/005 ,  H04W48/18 ,  H04W52/0229 ,  H04W72/048 ,  H04W84/042 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/21 ,  Y02D70/24

Abstract: Embodiments herein provide a method for performing an inter Public Land Mobile Network (PLMN) discovery, by a User Equipment (UE), in Device to Device (D2D) communication. The method includes determining one or more PLMNs to monitor for receiving discovery information. Further, the method includes determining discovery resources configured in each of the one or more PLMNs. Furthermore, the method includes monitoring discovery resources configured in the one or more PLMNs to receive the discovery information.

公开(公告)号：US10003386B2

公开(公告)日：2018-06-19

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 ,  H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W88/08 ,  H04W64/00 ,  H04W72/08 ,  H04B7/0408 ,  H04B7/0404

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.