公开(公告)号：US11291002B2

公开(公告)日：2022-03-29

申请号：US16439337

申请日：2019-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Chi-Woo Lim ,  Jae-Weon Cho ,  Tae-Young Kim

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L25/02

Abstract: An apparatus and a method for operating a mobile station in a wireless communication system are provided. The method includes receiving first information transmitted on a secondary carrier from a base station, and transmitting second information for feedback related to the secondary carrier at a feedback region in a primary carrier based on the first information to the base station.

公开(公告)号：US10531431B2

公开(公告)日：2020-01-07

申请号：US14322214

申请日：2014-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Seok Ryu ,  Seung-Hoon Park ,  Chi-Woo Lim

IPC: H04W72/04 ,  H04W72/12 ,  H04W8/00 ,  H04W72/08 ,  H04W76/14

Abstract: A method for allocating resources in Device-to-Device (D2D) communication in a wireless network is provided. The method includes requesting, by a device, resource allocation from an enhanced Node B (eNB) and causing the device to be allocated, from the eNB, a Resource Block (RB) for transmitting one of D2D discovery and communication data and control information. The RB includes information about a location of the resource-allocated time or frequency.

公开(公告)号：US10305710B2

公开(公告)日：2019-05-28

申请号：US14915195

申请日：2014-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min Sagong ,  Jeong-Ho Park ,  Jae-Won Kim ,  Hyun-Kyu Yu ,  Chi-Woo Lim ,  Su-Ryong Jeong ,  Sung-Nam Hong

IPC: H04L27/00 ,  H04L27/32 ,  H04L27/12 ,  H04L27/36 ,  H04J11/00 ,  H04L5/00

Abstract: The present invention relates to a method for operating, by a base station, multiple modulation schemes in a wireless communication system, the method comprising the steps of: calculating the number of terminals, among the terminals in a cell managed by the base station, of which a channel state is included in a state that is lower than a preset state; reporting information related to the calculated number of terminals to an upstream entity of the base station; receiving information about a band, assigned by the upstream entity, for a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme on the basis of a QAM scheme and a FSK scheme; and transmitting downwardly the information about the band for the FQAM scheme to the terminals of which a channel state is included in a state that is lower than the preset state. Other modified embodiments on the basis of the technical concept of the present invention are also possible.

公开(公告)号：US10243695B2

公开(公告)日：2019-03-26

申请号：US15393202

申请日：2016-12-28

Applicant: Samsung Electronics Co., Ltd

Inventor： Min Jang ,  Kyung-Joong Kim ,  Jae-Yoel Kim ,  Seho Myung ,  Seok-Ki Ahn ,  Chi-Woo Lim ,  Hong-Sil Jeong

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/11

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). A method includes decoding a codeword corresponding to a preset decoding scheme to detect reliability information of each of codeword bits included in the codeword, wherein at least one of a number of quantization bits and a range of a quantization level used for detecting reliability information in the decoding scheme is determined based on a degree of a node on a bipartite graph of a low density parity check (LDPC) code.

公开(公告)号：US10205468B2

公开(公告)日：2019-02-12

申请号：US14686629

申请日：2015-04-14

Applicant: Samsung Electronics Co., Ltd

Inventor： Seok-Ki Ahn ,  Kyeong-Cheol Yang ,  Sang-Min Kim ,  Woo-Myoung Park ,  Min Sagong ,  Chi-Woo Lim ,  Sung-Nam Hong

IPC: H03M13/11 ,  H03M13/00

Abstract: Provided is a method for decoding a non-binary (NB) low density parity check (LDPC) code at a user equipment (UE) that implements at least one variable nodes that receive a received signal of a wireless channel and deliver an input message to a check node and the check node that checks the input message and outputs an output message. The method includes receiving at least one input messages, generating a temporary vector by using the at least one input messages, searching for an element having a dominant value by checking the temporary vector, generating a configuration set, which is a check target, by using the element having the dominant value, and generating the output message by performing comparison with respect to the generated configuration set.

公开(公告)号：US10181927B2

公开(公告)日：2019-01-15

申请号：US14618956

申请日：2015-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chi-Woo Lim ,  Min Sagong ,  Sung-Nam Hong ,  Hyun-Kyu Yu ,  Kyung-Whoon Cheun

IPC: H04L1/20 ,  H04W24/10 ,  H04L1/00 ,  H04L27/10 ,  H04L27/34 ,  H04W88/08

Abstract: A method of operating a base station in a wireless communication system supporting frequency and quadrature-amplitude modulation (FQAM) is provided. The method includes receiving channel quality information and non-Gaussian information for a data region from a mobile station, and determining a MCS level on the basis of the channel quality information and the non-Gaussian information.

公开(公告)号：US10069665B2

公开(公告)日：2018-09-04

申请号：US14654798

申请日：2013-12-23

Applicant: Samsung Electronics Co., Ltd

Inventor： Hyun-Kyu Yu ,  Won-Il Roh ,  Jeong-Ho Park ,  Min Sagong ,  Ji-Yun Seol ,  Chi-Woo Lim ,  Kyung-Whoon Cheun ,  Jae-Weon Cho ,  Sung-Nam Hong

IPC: H04B1/00 ,  H04L27/10 ,  H04L1/18 ,  H04L27/34 ,  H04L1/00 ,  H04L27/00 ,  H04L27/32

CPC classification number: H04L27/10 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/1812 ,  H04L27/0008 ,  H04L27/32 ,  H04L27/34

Abstract: Disclosed is a method and device for transmitting and receiving a signal by using modulation techniques in a wireless communication system. The method according to the present invention includes: selecting one of QAM and improved QAM according to at least one predefined criterion; encoding information bits to be transmitted according to a first encoding scheme and mapping encoded information bits to QAM symbols when the QAM is selected; encoding information bits to be transmitted according to a second encoding scheme and mapping encoded information bits to improved QAM symbols when the improved QAM is selected; and transmitting the QAM symbols or the improved QAM symbols through a given resource region.

公开(公告)号：US10027441B2

公开(公告)日：2018-07-17

申请号：US15025242

申请日：2014-09-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Min Kim ,  Woo-Myoung Park ,  Chi-Woo Lim

IPC: H03D1/00 ,  H04L27/06 ,  H04L1/00 ,  H03M13/11 ,  H03M13/37 ,  H03M13/00 ,  H04L1/18

Abstract: Provided is a method for receiving data in a receiver that performs decoding using a non-binary Low Density Parity Check (LDPC) code. The method includes generating a message vector for each symbol by demodulating received data; determining data characteristics and channel characteristics of the received data; determining the number of vector elements to be used for decoding among vector elements of the message vector using at least one of the data characteristics and the channel characteristics; and selecting vector elements according to the determined number of vector elements, and decoding the received data using the selected vector elements.

公开(公告)号：US10014891B2

公开(公告)日：2018-07-03

申请号：US15512020

申请日：2015-09-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min Sagong ,  Ji-Yun Seol ,  Woo-Myong Park ,  Seok-Ki Ahn ,  Chi-Woo Lim ,  Sung-Nam Hong

IPC: H04L5/00 ,  H04B1/10 ,  H04L27/34 ,  H04L27/10 ,  H04B17/336

CPC classification number: H04B1/1027 ,  H04B17/336 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0014 ,  H04L5/0037 ,  H04L5/006 ,  H04L27/0008 ,  H04L27/10 ,  H04L27/106 ,  H04L27/34 ,  H04L27/3433 ,  H04L27/3488 ,  H04W52/146 ,  H04W52/241

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. The present invention relates to a NOMA system based FQAM connection method and an apparatus therefor. The present invention can increase the user transfer rate at a cell boundary. The scheduling method in a wireless communication system, according to an embodiment of the present invention, comprises a step of receiving a signal-to-interference-noise ratio (SINR) value and an alpha value from a terminal; a step of determining, on the basis of the SINR value and the alpha value, a Gaussian SINR value; a step of pairing users on the basis of the Gaussian SINR value; and a step of re-computing MCS on the basis of a re-computed alpha value.

公开(公告)号：US09825744B2

公开(公告)日：2017-11-21

申请号：US14256336

申请日：2014-04-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min Sagong ,  Chi-Woo Lim ,  Kyung-Whoon Cheun ,  Sung-Nam Hong

IPC: H04L5/00 ,  H04L27/00 ,  H04L27/12 ,  H04L27/36

CPC classification number: H04L5/005 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L27/0008 ,  H04L27/12 ,  H04L27/36

Abstract: A method of transmitting a signal using a plurality of modulation and coding schemes by a transmitter in a wireless communication system is provided. The method includes when a position of an active tone hits a position of a pilot tone of an adjacent cell, the active tone corresponding to a tone boosted through an application of a hybrid Frequency Shift Keying (FSK) and Quadrature Amplitude Modulation (QAM) Modulation (FQAM) scheme among tones included in an FQAM symbol based on the FQAM scheme in which a QAM scheme and a FSK scheme are combined, detecting two or more tones, which do not hit the position of the pilot tone among the tones included in the FQAM symbol, and transmitting signals by using the detected two or more tones.