公开(公告)号：US10383103B2

公开(公告)日：2019-08-13

申请号：US15565403

申请日：2016-04-05

Applicant: Samsung Electronics Co., Ltd

Inventor： Seung-Hoon Park ,  Jung-Min Moon ,  Sun-Heui Ryoo ,  Byoung-Hoon Jung ,  Jung-Soo Jung

IPC: H04W4/00 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08 ,  H04W72/14 ,  H04L5/00 ,  H04L27/00 ,  H04W72/12

Abstract: Disclosed is a 5G or pre-5G communication system provided so as to support a data transmission rate higher than that of a 4G communication system, such as LTE. A method and a device for transmitting information in a communication system are disclosed. The method for allocating resources in a cellular network using an unlicensed band comprises the steps of: generating at least one resource allocation signal containing information indicating a plurality of continuous uplink subframes capable of communicating through the unlicensed band; transmitting the resource allocation signal to a user equipment (UE) through the unlicensed band for the duration of at least one downlink subframe; and receiving uplink data from the UE for the duration of the continuous uplink subframes.

公开(公告)号：US10314059B2

公开(公告)日：2019-06-04

申请号：US15524935

申请日：2015-11-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Jin Lee ,  Jung-Soo Jung ,  Sun-Heui Ryoo ,  Jung-Min Moon

IPC: H04W72/12 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04 ,  H04L1/16 ,  H04W74/08

Abstract: The present disclosures provides a method in a communication system for scheduling, by a base station, a terminal which uses an unlicensed band channel, comprising: a step in which a base station transmits scheduling information with respect to an unlicensed band to a terminal through a licensed band channel in a first subframe; a step in which the base station performs a search for the unlicensed band channel; and a step in which, if the search for the unlicensed band channel is successful, downlink data is transmitted to the terminal through the unlicensed band channel on the basis of the scheduling information.

公开(公告)号：US10142940B2

公开(公告)日：2018-11-27

申请号：US15439421

申请日：2017-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun-Heui Ryoo ,  Jung-Soo Jung ,  Hyun-Jeong Kang ,  Jong-Hyung Kwun ,  Sung-Jin Lee

IPC: H04B7/00 ,  H04W52/14 ,  H04W52/34 ,  H04W76/27 ,  H04W76/15 ,  H04W52/36

Abstract: A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.

公开(公告)号：US10057025B2

公开(公告)日：2018-08-21

申请号：US14644004

申请日：2015-03-10

Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Sung Jin Park ,  Min Hoe Kim ,  Dong Ho Cho ,  Sun-Heui Ryoo

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/024 ,  H04W36/06

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0035 ,  H04W36/06

Abstract: A method to operate a receiving node is provided. The method includes receiving a first set of reference signals being transmit-beamformed using transmit beam groups in at least one transmitting node with receive-beamforming using receive beam groups. The method also includes transmitting information to select one transmit beam group of the transmit beam groups to one of the at least one transmitting node. The method further includes receiving a second set of the reference signals being transmit-beamformed using transmit beams of the one of the transmit beam groups in the at least one transmitting node with receive-beamforming using receive beams of one of the receive beam groups.

公开(公告)号：US20180131473A1

公开(公告)日：2018-05-10

申请号：US15565399

申请日：2016-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-Min Moon ,  Seung-Hoon Park ,  Jung-Soo Jung ,  Sun-Heui Ryoo ,  Byoung-Hoon Jung

IPC: H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04L1/1812 ,  H04L1/18 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0055 ,  H04W16/14 ,  H04W72/0413 ,  H04W72/0453 ,  H04W74/004

Abstract: The present invention relates to 5G or pre-5G communication system for supporting a higher data transmission rate after 4G communication system such as LTE. The present invention provides a method and a device for executing a hybrid automatic repeat request (HARQ) through a channel in an unlicensed frequency band. More particularly, a method for executing a HARQ through a channel in an unlicensed frequency band in a terminal of a communication system comprises the procedures of: requesting uplink scheduling; if a first uplink (UL) grant with respect to the scheduling request is received, sensing whether or not a channel is clear; transmitting first uplink data on the basis of whether or not the channel is clear; if negative acknowledge (NACK) with respect to the first uplink grant and a second uplink grant are received, sensing whether or not the channel is clear; and transmitting second uplink data and an indicator, which indicates whether or not the second uplink data transmission is a retransmission, on the basis of whether or not the channel is clear, wherein the indicator, which indicates for retransmission, is determined on the basis of a reference signal (RS) detection failure indicator, of a base station, which is transmitted from the base station together with the second uplink grant.

公开(公告)号：US20180124611A1

公开(公告)日：2018-05-03

申请号：US15565394

申请日：2016-04-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-Min Moon ,  Seung-Hoon Park ,  Sun-Heui Ryoo ,  Byoung-Hoon Jung ,  Jung-Soo Jung

IPC: H04W16/14 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04W16/14 ,  H04L5/0055 ,  H04W72/0453 ,  H04W74/0808 ,  H04W74/0816

Abstract: The present invention relates to 5G or pre-5G communication system for supporting a higher data transmission rate after 4G communication system such as LTE. The present invention provides a method for transmitting data on the basis of a measurement of a channel of an unlicensed band in a mobile communication system, the method comprising the procedures of: selecting a random number for backoff counting; determining whether to decrement the random number by 1; decrementing the random number by 1 on the basis of the determining; determining whether the channel is idle by measuring the channel; completing the backoff counting if the random number becomes 0; and transmitting data by means of the channel if the backoff counting is completed.

公开(公告)号：US09603098B2

公开(公告)日：2017-03-21

申请号：US14268783

申请日：2014-05-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun-Heui Ryoo ,  Jung-Soo Jung ,  Hyun-Jeong Kang ,  Jong-Hyung Kwun ,  Sung-Jin Lee

IPC: H04B7/00 ,  H04W52/14 ,  H04W52/36 ,  H04W76/04 ,  H04W52/34

CPC classification number: H04W52/146 ,  H04W52/34 ,  H04W52/365 ,  H04W76/15 ,  H04W76/27

Abstract: A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.

公开(公告)号：US11218882B2

公开(公告)日：2022-01-04

申请号：US15565394

申请日：2016-04-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-Min Moon ,  Seung-Hoon Park ,  Sun-Heui Ryoo ,  Byoung-Hoon Jung ,  Jung-Soo Jung

IPC: H04W4/00 ,  H04W16/14 ,  H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: The present invention relates to 5G or pre-5G communication system for supporting a higher data transmission rate after 4G communication system such as LTE. The present invention provides a method for transmitting data on the basis of a measurement of a channel of an unlicensed band in a mobile communication system, the method comprising the procedures of: selecting a random number for backoff counting; determining whether to decrement the random number by 1; decrementing the random number by 1 on the basis of the determining; determining whether the channel is idle by measuring the channel; completing the backoff counting if the random number becomes 0; and transmitting data by means of the channel if the backoff counting is completed.

公开(公告)号：US11109274B2

公开(公告)日：2021-08-31

申请号：US16876764

申请日：2020-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun-Heui Ryoo ,  Jung-Soo Jung ,  Ra-Yeon Ahn ,  Ji-Won Hwang

IPC: H04L5/00 ,  H04W28/08 ,  H04J11/00 ,  H04W48/16 ,  H04W48/14 ,  H04L1/00 ,  H04L12/805 ,  H04W72/12 ,  H04W68/02

Abstract: The present invention relates to a method and apparatus for effectively transmitting or receiving paging in a wireless communication system supporting a plurality of services. A method for transmitting paging by a base station in a wireless communication system supporting a plurality of services according to an embodiment of the present disclosure comprises the steps of: transmitting information on a paging slice corresponding to a service in which paging is transmitted to a terminal; and transmitting the paging to the terminal through the paging slice.

公开(公告)号：US10601792B1

公开(公告)日：2020-03-24

申请号：US16676033

申请日：2019-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun-Heui Ryoo ,  Soeng-Hun Kim ,  Jung-Soo Jung ,  Jung-Min Moon ,  Anshuman Nigam ,  Sung-Jin Lee

IPC: H04M1/66 ,  H04M1/68 ,  H04M3/16 ,  H04L29/06 ,  H04W12/04 ,  H04W12/02 ,  H04W36/00

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 for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.