公开(公告)号：US10154402B2

公开(公告)日：2018-12-11

申请号：US14904273

申请日：2014-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W8/00 ,  H04W4/70 ,  H04W4/08

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 method and user equipment (UE) for transmitting and receiving discovery information in a wireless communication system supporting a proximity service are provided. The method for transmitting discovery information includes receiving, in a medium access control (MAC) layer, discovery information for discovery associated with the proximity service from a higher layer, generating, in the MAC layer, a MAC protocol data unit (PDU) including the received discovery information, and transmitting, in a physical (PHY) layer, a discovery signal including the generated MAC PDU.

公开(公告)号：US10142964B2

公开(公告)日：2018-11-27

申请号：US14021953

申请日：2013-09-09

Applicant: Samsung Electronics Co., Ltd

Inventor： Anshuman Nigam ,  Anil Agiwal ,  Young-Bin Chang

IPC: H04W72/04

Abstract: A method and system signal resource allocation information in an asymmetric multicarrier communication network. A MS communicates with a BS using asymmetric carriers consisting of at least one low frequency carrier (e.g., primary carriers) in a cellular band and at least one high frequency carrier (e.g., secondary carriers) in a millimeter Wave band. In one embodiment, the BS allocates resources for one or more transmit time intervals in at least one of DL allocation interval of a secondary DL carrier and UL allocation interval of a secondary UL carrier for the MS, where the DL allocation interval spans one or more subframes of the secondary DL carrier and the UL allocation interval spans one or more subframes of the secondary UL carrier. The BS then transmits information regarding the allocated resources to the MS in a Packet Data Control Channel region of a subframe of the primary DL carrier.

公开(公告)号：US20180278297A1

公开(公告)日：2018-09-27

申请号：US15996165

申请日：2018-06-01

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04B7/0408 ,  H04W88/08 ,  H04W64/00 ,  H04B7/06 ,  H04W72/04 ,  H04W4/02 ,  H04L5/00 ,  H04B7/08 ,  H04B7/0404 ,  H04W72/08

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：US10033504B2

公开(公告)日：2018-07-24

申请号：US14020226

申请日：2013-09-06

Applicant: Samsung Electronics Co. Ltd.

Inventor： Anil Agiwal ,  Anshuman Nigam ,  Young-Bin Chang

IPC: H04L5/00 ,  H04L1/00

Abstract: A method for communicating Downlink Control Information (DCI) in an asymmetric multicarrier communication network environment, the method comprising: determining a carrier type corresponding to DCI to be transmitted to a mobile station from a plurality of carrier types, encoding the DCI in a DCI format, wherein the DCI format comprises a set of fields corresponding to the determined carrier type, and transmitting the DCI encoded in the DCI format to the mobile station through a downlink control channel on a primary carrier, wherein the DCI format comprises a carrier index field indicating type of the fields in the DCI format encoding the DCI and the carrier type corresponding to the encoded DCI.

公开(公告)号：US09942879B2

公开(公告)日：2018-04-10

申请号：US14716440

申请日：2015-05-19

Applicant: Samsung Electronics Co., Ltd

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

IPC: H04W4/00 ,  H04W72/02 ,  H04W72/08 ,  H04W76/02

CPC classification number: H04W72/02 ,  H04W72/085 ,  H04W76/14

Abstract: Different resources are selected based on QoS, emergency class, location, and SA count. A method for avoiding resource collision by a first User Equipment (UE) in a mobile communication system is provided. The method includes listening to Scheduling Assign (SA) information of a second UE; and selecting different resources between UEs based on the SA information.

公开(公告)号：US20180054725A1

公开(公告)日：2018-02-22

申请号：US15551576

申请日：2016-02-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W8/00 ,  H04W24/08

CPC classification number: H04W8/005 ,  H04W24/08 ,  H04W76/10 ,  H04W76/14 ,  H04W88/04 ,  H04W88/08

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). Embodiments herein provide a method for triggering a transmission of a UE-to-Network relay indication comprising receiving, by UE, one of UE-to-Network relay criteria broadcasted by a base station, measuring, at the UE, a link quality parameter between the UE and the base station, detecting, by the UE, that the link quality parameter meets the UE-to-Network relay criteria, and transmitting, by the UE, the UE-to-Network relay indication (i.e. discovery message indicating itself as the UE-to-Network relay) on a Device to Device (D2D) discovery channel.

公开(公告)号：US20180020339A1

公开(公告)日：2018-01-18

申请号：US15545673

申请日：2016-01-21

Applicant: Samsung Electronics Co., Ltd

Inventor： Anil Agiwal ,  Young-Bin Chang

IPC: H04W8/00 ,  H04W72/04 ,  H04W76/00 ,  H04W12/08 ,  H04W84/04 ,  H04W76/04

CPC classification number: H04W8/005 ,  H04W12/08 ,  H04W72/02 ,  H04W72/0453 ,  H04W76/14 ,  H04W76/27 ,  H04W76/40 ,  H04W84/042

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 a Long Term Evolution (LTE).The various embodiments of the present invention disclose a method and system for enabling device-to-device (D2D) discovery message transmission in a wireless communication network. The method comprises of identifying, by a D2D communication user equipment (UE), one or more carriers for transmission of one or more D2D discovery messages, determining, one or more discovery resources for transmission of one or more D2D discovery messages on the one or more identified carriers and transmitting the one or more D2D discovery messages on the one or more identified carriers.

公开(公告)号：US20170214496A1

公开(公告)日：2017-07-27

申请号：US15483931

申请日：2017-04-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anil Agiwal ,  Anshuman Nigam ,  Young-Bin Chang

IPC: H04L1/18 ,  H04W72/04

CPC classification number: H04L1/1887 ,  H04L1/1816 ,  H04L1/1896 ,  H04W72/0406 ,  H04W72/0446

Abstract: Hybrid Automatic Repeat Request (HARQ) operation in an asymmetric multicarrier communication network environment is performed, in one embodiment, by receiving resource allocation information from a base station, transmitting the HARQ packet to the base station in a transmit time interval (TTI) corresponding a first or second partition of an uplink allocation interval on a second carrier, and receiving HARQ feedback information corresponding to a previous HARQ packet transmission. A TTI in a subsequent uplink allocation interval is determined based on the partition of the uplink allocation interval in which the HARQ packet is transmitted if the HARQ feedback information indicates negative acknowledgement. The HARQ packet is transmitted to the base station in the determined transmit time interval of the subsequent uplink allocation interval on the second carrier.

公开(公告)号：US09706396B2

公开(公告)日：2017-07-11

申请号：US14821013

申请日：2015-08-07

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W4/00 ,  H04W12/04 ,  H04L29/06 ,  H04W12/02 ,  H04W76/02

CPC classification number: H04W12/04 ,  H04L63/0428 ,  H04L63/065 ,  H04L2463/061 ,  H04W12/02 ,  H04W76/14

Abstract: A system and a method of counter management and security key update for device-to-device (D2D) communication are provided. The method includes creating by a user equipment, a new packet data convergence protocol (PDCP) entity for a service group wherein a service group is identified by a destination identifier (ID), determining if any PDCP entity of the service group exists or not, generating a new proximity service (ProSe)traffic key (PTK) from a ProSe group key (PGK) corresponding to the service group associated with the new PDCP entity, initializing a new packet counter associated with the service group to zero if the new PDCP entity is a first PDCP entity associated with the service group, generating a ProSe encryption key (PEK) from the PTK and encrypting data packets mapped to the new PDCP entity using the PEK and a packet counter associated with the service group.

公开(公告)号：US09706387B2

公开(公告)日：2017-07-11

申请号：US14794612

申请日：2015-07-08

Applicant: Samsung Electronics Co., Ltd

Inventor： Anil Agiwal ,  Young-Bin Chang

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

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.