公开(公告)号：US20140133593A1

公开(公告)日：2014-05-15

申请号：US14076051

申请日：2013-11-08

Applicant: Research & Business Foundation Sungkyunkwan University ,  Samsung Electronics Co., Ltd

Inventor： Chi-Woo Lim ,  Sang-Hyo Kim ,  Min Jang ,  Jin-Hwan Kang ,  Kyung-Kyu Kim ,  Dae-Gyun Kim ,  Hyun-Seok Ryu ,  Seung-Hoon Park ,  Seung-Sik Shin

IPC: H04L25/03 ,  H04L5/00

CPC classification number: H04L25/03203 ,  H04L5/0007 ,  H04L25/0328

Abstract: In order to generate multiple-access signals, each transmitter transmits information by using all or a part of channel resources. The signal of each transmitter is mapped to an OFDM time-frequency resource space as a trellis modulation path. A mobile communication system maps trellis modulation paths of a plurality of transmitters to the same resource space. In order to effectively detect and distinguish signals of a plurality of transmitters transmitted through the same channel resource space, a receiver uses a message passing method between symbols and a path connection method. The receiver uses a state space expansion method, a backward pre-decoding method, and a successive interference cancellation method to more efficiently reconstruct a discovery signal.

Abstract translation: 为了产生多址信号，每个发射机通过使用全部或部分信道资源来发送信息。 每个发射机的信号被映射到OFDM时频资源空间作为网格调制路径。 移动通信系统将多个发射机的网格调制路径映射到相同的资源空间。 为了有效地检测和区分通过相同信道资源空间发送的多个发射机的信号，接收机使用符号之间的消息传递方法和路径连接方法。 接收机使用状态空间扩展方法，反向预解码方法和连续干扰消除方法来更有效地重构发现信号。

公开(公告)号：US10511060B2

公开(公告)日：2019-12-17

申请号：US15505456

申请日：2016-06-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min Jang ,  Seok-Ki Ahn ,  Chi-Woo Lim ,  Jae-Yoel Kim ,  Woo-Myoung Park

IPC: H01M10/38 ,  H03M13/11 ,  H04L1/00

Abstract: A 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE) is disclosed. The present disclosure relates to a rate compatible low-density parity-check (RC-LDPC) encoding method and device therefor. The encoding method includes using LDPC in a communication system, including the operations of LDPC encoding information bits by a first encoding rate, and performing a concatenated single parity check (SPC) encoding for the encoded bits by at least one second encoding rate lower than the first encoding rate.

公开(公告)号：US10292172B2

公开(公告)日：2019-05-14

申请号：US13922016

申请日：2013-06-19

Applicant: Samsung Electronics Co. Ltd.

Inventor： Chi-Woo Lim ,  Kyung-Kyu Kim ,  Dae-Gyun Kim ,  Seung-Hoon Park

IPC: H04L1/00 ,  H04W52/24 ,  H04W52/28 ,  H04W52/38 ,  H04W72/08 ,  H04W72/12

Abstract: A method and an apparatus for transmitting a packet in a system performing a Device to Device (D2D) direct communication are provided. In the method, whether to transmit a small packet is determined. When small packet transmission is determined, at least one peripheral reception device is informed of whether the small packet is transmitted at a scheduling point.

公开(公告)号：US10098103B2

公开(公告)日：2018-10-09

申请号：US15190114

申请日：2016-06-22

Applicant: Samsung Electronics Co., Ltd

Inventor： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Jae-Won Kim ,  Woo-Myoung Park

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/02

Abstract: A method and an apparatus for supporting multiuser superposition transmission. The method includes transmitting a signaling message including an indication of multiuser superposition transmission to a first UE among UEs scheduled for multiuser superposition transmission, transmitting, to the first UE, first DCI containing transmission information for the first UE and second DCI containing transmission information for at least one second UE among the UEs for multiuser superposition transmission, and transmitting a first downlink signal containing data for the first UE and a second downlink signal containing data for the second UE in a superposed manner on same resources.

公开(公告)号：US09906397B2

公开(公告)日：2018-02-27

申请号：US15323706

申请日：2015-12-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Woo-Myoung Park ,  Seok-Ki Ahn ,  Chi-Woo Lim

IPC: H04L5/12 ,  H04L27/36 ,  H04L27/38 ,  H04L1/00 ,  H04W24/02

CPC classification number: H04L27/362 ,  H04J11/004 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0033 ,  H04L1/0054 ,  H04L27/0008 ,  H04L27/32 ,  H04L27/34 ,  H04L27/38 ,  H04W24/02

Abstract: The present disclosure provides a method for transmitting messages using a channel combining/splitting transmission scheme for a 5G or pre-5G communication system. The method comprising: splitting the messages into a first part to be transmitted to a first channel, which is a degradation channel, and a second part to be transmitted to a second channel, which is an enhancement channel, generating first modulation signals by performing a channel encoding and frequency quadrature amplitude modulation on the first part and generating second modulation signals by performing a channel encoding and quadrature amplitude modulation on the second part, generating first transmission signals by combining the first modulation signals with a part of or all the second modulation signals and generating second transmission signals using the second modulation signals, and transmitting the generated first transmission signals and second transmission signals through the first channel and the second channel.

公开(公告)号：US20170302315A1

公开(公告)日：2017-10-19

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: H04B1/10 ,  H04L27/10 ,  H04L27/34 ,  H04B17/336

CPC classification number: H04B1/1027 ,  H04B17/336 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/20 ,  H04L27/10 ,  H04L27/34 ,  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：US09794950B2

公开(公告)日：2017-10-17

申请号：US14304280

申请日：2014-06-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Seok Ryu ,  Seung-Hoon Park ,  Chi-Woo Lim ,  Young-Bin Chang ,  Anil Agiwal ,  Kyung-Kyu Kim ,  Dae-Gyun Kim ,  Young-Joong Mok ,  Sang-Kyu Baek

IPC: H04W72/08 ,  H04W52/14 ,  H04W52/38 ,  H04W72/04 ,  H04W52/24

CPC classification number: H04W72/085 ,  H04W52/146 ,  H04W52/241 ,  H04W52/246 ,  H04W52/383 ,  H04W72/042 ,  H04W76/14

Abstract: A method for allocating resources for Device-to-Device (D2D) communication in a transmitting terminal is provided. The method includes receiving broadcast resource allocation information for the D2D communication from a Base Station (BS), and measuring a channel quality of a downlink signal received from the BS and, if the measured channel quality is smaller than a predetermined threshold, conducting the D2D communication using the resource allocation information.

公开(公告)号：US20170265200A1

公开(公告)日：2017-09-14

申请号：US15505243

申请日：2015-08-20

Applicant: Samsung Electronics Co., Ltd

Inventor： Min Sagong ,  Woo-Myoung Park ,  Seok-Ki Ahn ,  Chi-Woo Lim ,  Sung-Nam Hong

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04L1/18

CPC classification number: H04W72/082 ,  H04B17/26 ,  H04B17/345 ,  H04L1/00 ,  H04L1/1887 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0057 ,  H04L27/0008 ,  H04L27/10 ,  H04L27/364 ,  H04W72/0413

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). The present invention relates to method and apparatus for performing a decoding with low complexity in a wireless communication system. A decoding method of a terminal in a wireless communication system comprises determining a first characteristic value indicating a statistical characteristic of an interference signal based on a received signal of a base station, determining a second characteristic value indicating a statistical characteristic of an interference signal based on data received from the base station, and decoding the data according to a decoding scheme corresponding to a difference of the first characteristic value and the second characteristic value.

公开(公告)号：US09667273B2

公开(公告)日：2017-05-30

申请号：US14656477

申请日：2015-03-12

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/37

CPC classification number: H03M13/1171 ,  H03M13/3707 ,  H03M13/658

Abstract: Various embodiments of the present disclosure adjusts the size (nm) of a message input to a corresponding check node in case the unsatisfied check equation increases as the iteration count increases.Another embodiment of the present disclosure relates to a method for selecting a message and grasps the data distribution characteristics of the message vector values converted using the signal to noise ratio (SNR) and modulation and coding scheme (MCS) parameters of the receiver to select the message value with a value smaller than the threshold value in each message vector.

公开(公告)号：US20160374060A1

公开(公告)日：2016-12-22

申请号：US15190114

申请日：2016-06-22

Applicant: Samsung Electronics Co., Ltd

Inventor： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Jae-Won Kim ,  Woo-Myoung Park

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0048 ,  H04W88/02

Abstract: A method and an apparatus for supporting multiuser superposition transmission. The method includes transmitting a signaling message including an indication of multiuser superposition transmission to a first UE among UEs scheduled for multiuser superposition transmission, transmitting, to the first UE, first DCI containing transmission information for the first UE and second DCI containing transmission information for at least one second UE among the UEs for multiuser superposition transmission, and transmitting a first downlink signal containing data for the first UE and a second downlink signal containing data for the second UE in a superposed manner on same resources.

Abstract translation: 一种用于支持多用户叠加传输的方法和装置。 该方法包括：在调度用于多用户叠加传输的UE中向第一UE发送包括多用户叠加传输的指示的信令消息，向第一UE发送包含第一UE的传输信息的第一DCI和包含用于第一UE的传输信息的第二DCI 用于多用户叠加传输的UE中的至少一个第二UE，以及以相同资源的叠加方式发送包含第一UE的数据的第一下行链路信号和包含第二UE的数据的第二下行链路信号。