公开(公告)号：US10163342B2

公开(公告)日：2018-12-25

申请号：US14966658

申请日：2015-12-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-Suk Kweon ,  Jung-Min Moon ,  Kyung-Kyu Kim ,  Young-Bin Chang ,  Jung-Soo Jung

IPC: G08G1/087 ,  G08G1/0965 ,  G08G1/0967 ,  G08G1/16 ,  G01C21/26

Abstract: A method and apparatus for traffic safety are provided using vehicle driving-related information obtained on the basis of a transmission/reception beam pair of a road side unit (RSU) and a vehicle on-board unit (OBU), thereby reducing a probability that vehicle collisions occur where visual fields may be obscured. The method includes setting a path from a current location of the electronic device to a destination, and transmitting a message indicating an emergency situation to other devices located on the path while moving to the destination. The method further includes determining a transmission/reception beam pair of the electronic device and a road apparatus, using a reference signal received from the road apparatus, transmitting a signal including information for the transmission/reception beam pair to the road apparatus, and receiving, from the road apparatus, a message warning that the electronic device and another neighboring electronic device are approaching each other.

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：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：US10716137B2

公开(公告)日：2020-07-14

申请号：US15990606

申请日：2018-05-26

Applicant: Samsung Electronics Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Seung-Hoon Park ,  Chung Gu Kang ,  Chung Kee Kim ,  Jung-Min Moon ,  Junman Lee ,  Byounghoon Jung ,  Jungsoo Jung

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

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments in the present disclosure, a method of operating a terminal in a wireless communication system comprises receiving information for indicating a pre-listen interval within an allocated channel occupancy time from a base station (BS), transmitting a reporting signal for indicating that occupancy of an unlicensed band by at least one node is not detected during the pre-listen interval, receiving resource allocation information for indicating uplink resources of the unlicensed band allocated based on the reporting signal, and transmitting uplink data through the uplink resources.

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.

公开(公告)号：US10313935B2

公开(公告)日：2019-06-04

申请号：US15886219

申请日：2018-02-01

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W76/18 ,  H04W76/19 ,  H04W36/30 ,  H04W36/00 ,  H04W76/38

Abstract: A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.

公开(公告)号：US10313904B2

公开(公告)日：2019-06-04

申请号：US15325018

申请日：2016-04-22

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04L5/00 ,  H04W24/08 ,  H04W24/10 ,  H04L5/14 ,  H04W72/12 ,  H04W16/14

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate after a 4G communication system such as LTE. In a wireless communication system of the present disclosure, a method for receiving, by a base station, a measurement result of a terminal includes: a process for allocating at least one of a plurality of measurement gaps, set for measuring a licensed band, for the measurement of an unlicensed band; a process for transmitting activation instruction information that instructs the activation of a measurement gap for the allocated unlicensed band measurement; and a process for receiving, from the terminal, a measurement result for the unlicensed band measured in the activated measurement gap by the terminal.

公开(公告)号：US10257856B2

公开(公告)日：2019-04-09

申请号：US15749396

申请日：2016-07-29

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W74/00 ,  H04W48/10 ,  H04W16/14 ,  H04W72/12 ,  H04W74/08

Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. Disclosed are: a method for transmitting a signal in an unlicensed band channel on the basis of a counter reduction in the unlicensed band channel of a mobile communication system and a clear channel assessment (CCA) of the channel; and a mobile communication system, and according to an embodiment of the present disclosure, the method for transmitting a signal in an unlicensed band channel on the basis of a counter reduction in the unlicensed band channel of a mobile communication system and a clear channel assessment (CCA) of the channel comprises the steps of: reducing the counter and performing a CCA for the channel, during a first period of transmitting a discovery signal and data; storing the reduced counter when a second period of transmitting only the discovery signal without the data is started; reducing the counter by using the stored counter and performing the CCA for the channel when a third period of transmitting the discovery signal and the data is started; and transmitting the discovery signal or the data on the channel on the basis of the counter value.

公开(公告)号：US10251184B2

公开(公告)日：2019-04-02

申请号：US15328378

申请日：2016-01-29

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/08 ,  H04L5/14 ,  H04L12/26 ,  H04W74/08 ,  H04W88/08 ,  H04W72/04

Abstract: A 5th generation (5G) or pre-5G communication system for supporting a higher data transfer rate than a 4th generation (4G) communication system such as long term evolution (LTE) is provided. A method and apparatus which perform communication in a wireless communication system using an unlicensed band, and a method in which a base station controls a clear channel assessment (CCA) timing in a wireless communication system using an unlicensed band are provided. The method includes determining whether to change CCA timing by comparing a number of at least one of continuous successes or continuous failures in a CCA with a predetermined threshold value and when it is determined that the CCA timing is to be changed, randomizing the CCA timing.