公开(公告)号：US10314080B2

公开(公告)日：2019-06-04

申请号：US15531392

申请日：2015-11-24

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

Inventor： Sun-Heui Ryoo ,  Sung-Jin Park ,  Nam-I Kim ,  Dong-Ho Cho

IPC: H04W74/08 ,  H04W16/28 ,  H04W84/04

Abstract: The present disclosure relates to a 5G or pre-5G communication system that will be provided to support higher data transfer rate following a 4G communication system such as LTE. The present disclosure relates to a method of performing random access of a terminal, said method comprising: an operation of determining the number of received beams of a base station connected to transmitted beams of the terminal; an operation of determining an area of wireless transfer resource on the basis of the number of the received beams; and an operation of transmitting random access message in the random access resource defined by the beam resource corresponding to the determined number and the wireless transfer resource corresponding to the determined area.

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.

公开(公告)号：US10244440B2

公开(公告)日：2019-03-26

申请号：US14914973

申请日：2014-08-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Sun-Heui Ryoo ,  Jung-Soo Jung ,  Sang-Wook Kwon ,  Jong-Hyung Kwun ,  Suk-Won Kim ,  June Hwang

IPC: H04W36/00 ,  H04W36/04 ,  H04W74/08 ,  H04W72/04

Abstract: The objective of the present invention is to provide services by effectively switching, by a terminal, a macro cell and a small cell on the basis of time in a communication system in which the macro cell and the small cell coexist. A method for operating a terminal in a wireless communication system comprises the steps of: transmitting, to a first base station and/or a second base station, information on a switching delay time required for the terminal to perform cell switching; and communicating through a resource of the first base station and a resource of the second base station which are allocated by considering the switching delay time.

公开(公告)号：US10045266B2

公开(公告)日：2018-08-07

申请号：US14910104

申请日：2014-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Sun-Heui Ryoo ,  Jung-Soo Jung ,  Jong-Hyung Kwun ,  Suk-Won Kim ,  Bong-Jhin Shin ,  Sung-Jin Lee

IPC: H04W36/00 ,  H04W36/04 ,  H04W76/15

CPC classification number: H04W36/04 ,  H04W36/0055 ,  H04W36/0069 ,  H04W36/0083 ,  H04W36/0088 ,  H04W76/15

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). An operating method of a user equipment (UE) in a mobile communication system is provided. The operating method includes receiving a service through a first enhanced node B (eNB) for a first time interval period from a first timing point; and receiving the service through a second eNB for a second time interval period from a second timing point, wherein the first timing point is different from the second timing point.

公开(公告)号：US10015710B2

公开(公告)日：2018-07-03

申请号：US14910104

申请日：2014-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Sun-Heui Ryoo ,  Jung-Soo Jung ,  Jong-Hyung Kwun ,  Suk-Won Kim ,  Bong-Jhin Shin ,  Sung-Jin Lee

IPC: H04W36/00 ,  H04W36/04 ,  H04W76/15

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). An operating method of a user equipment (UE) in a mobile communication system is provided. The operating method includes receiving a service through a first enhanced node B (eNB) for a first time interval period from a first timing point; and receiving the service through a second eNB for a second time interval period from a second timing point, wherein the first timing point is different from the second timing point.

公开(公告)号：US09973945B2

公开(公告)日：2018-05-15

申请号：US15467319

申请日：2017-03-23

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W24/00 ,  H04W24/02 ,  H04W48/16 ,  H04B7/024

CPC classification number: H04W24/02 ,  H04B7/024 ,  H04W48/16

Abstract: A method and an apparatus for efficiently reporting a master information block (MIB) decoding status of a neighbor cell in a wireless communication system are provided. The method includes receiving, by a user equipment (UE) and from an evolved Node B (eNB) of a serving cell, neighbor cell-related information for receiving an MIB of the neighbor cell, based on the neighbor-cell related information, decoding, by the UE, the MIB of the neighbor cell, and transmitting, by the UE, decoding information of the MIB to the eNB of the serving cell.

公开(公告)号：US09955357B2

公开(公告)日：2018-04-24

申请号：US14839164

申请日：2015-08-28

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/00 ,  H04W16/14 ,  H04W72/04 ,  H04W76/04 ,  H04L27/00 ,  H04L5/00 ,  H04W88/02

CPC classification number: H04W16/14 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/0091 ,  H04L27/0006 ,  H04W72/0453 ,  H04W76/27 ,  H04W88/02 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/21

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for adding an operating channel for a user equipment (UE) that uses an unlicensed band channel by an evolved Node B (eNB) in a mobile communication system is provided. The method includes transmitting a first sensing indicator message indicating sensing of an unlicensed band channel, to at least one UE, determining a channel state by sensing the unlicensed band channel, receiving a first feedback message including a channel sensing result of the unlicensed band channel sensed by the UE, from the at least one UE, comparing the determined channel state with the channel sensing result received from the UE, and transmitting a control message indicating addition of the unlicensed band channel to the UE based on the comparison result.