公开(公告)号：US20210105806A1

公开(公告)日：2021-04-08

申请号：US15733203

申请日：2018-11-28

Applicant: Samsung Electronics Co., Ltd. ,  The Regents of The University of California

Inventor： Seokki AHN ,  Kwangtaik KIM ,  Young-Han KIM

IPC: H04W72/12 ,  H04W72/04 ,  H04W28/22 ,  H04L1/00 ,  H04L1/18

Abstract: The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. In particular, the present disclosure relates to a scheduling method and apparatus for transmitting and receiving data in a wireless communication system using a sliding window superposition coding scheme. In the present disclosure, in a wireless communication system, if a UE is located in a cell edge, data throughput can be improved. An eNB using an SWSC scheme can provide fast scheduling. An eNB can provide higher throughput.

公开(公告)号：US20180242343A1

公开(公告)日：2018-08-23

申请号：US15903540

申请日：2018-02-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seok-Ki AHN ,  Kwang-Taik KIM ,  Young-Han KIM ,  Yong-Seok KIM ,  Chi-Woo LIM

IPC: H04W72/12 ,  H04W24/02 ,  H04L1/18

CPC classification number: H04W72/1231 ,  H04L1/0001 ,  H04L1/187 ,  H04W24/02

Abstract: A method for performing scheduling by a first base station over a wireless communication network, and an apparatus therefor are provided. The method includes receiving first channel status information (CSI) measured by at least one user equipment (UE) positioned in coverage of the first base station and second CSI, determining a first transmission rate for any one of the at least one UE positioned in the coverage of the first base station and a second transmission rate for any one of the at least one UE positioned in the coverage of the second base station, determining a third transmission rate for a first UE among the at least one UE positioned in the coverage of the first base station and a fourth transmission rate for a second UE among the at least one UE positioned in the coverage of the second base station, and performing scheduling.

公开(公告)号：US20180227020A1

公开(公告)日：2018-08-09

申请号：US15891146

申请日：2018-02-07

Applicant: Samsung Electronics Co., Ltd

Inventor： Seok-Ki AHN ,  Sungho CHAE ,  Kwang Taik KIM ,  Young-Han KIM

IPC: H04B7/0413 ,  H04L25/03 ,  H04B7/08

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). According to various embodiments, in a multiple-input multiple-output wireless communication system, a receiving apparatus may include at least one processor and at least one transceiver. The at least one transceiver may be configured to receive a signal including a plurality of symbols, perform Successive Interference Cancellation (SIC) related to a first symbol of the plurality of symbols on the received signal to obtain a processed signal, determine symbol-sums by applying an equalization matrix for integer forcing to the processed signal, and determine information words corresponding to the plurality of symbols based on the symbol-sums.

公开(公告)号：US20170214502A1

公开(公告)日：2017-07-27

申请号：US15416712

申请日：2017-01-26

Applicant: Samsung Electronics Co., Ltd. ,  REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Kwang Taik KIM ,  Young-Han KIM ,  Seok-Ki AHN ,  Chiao-Yi CHEN

IPC: H04L5/00 ,  H04L27/34 ,  H04B7/06 ,  H04L1/00

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 a long term evolution (LTE). An operating method of a transmitting apparatus in a wireless communication system is provided. The operating method includes detecting an achievable rate region for a receiving apparatus, and determining a modulation and coding scheme (MCS) level and a sliding window superposition coding (SWSC) multi-input multi-output (MIMO) scheme corresponding to the achievable rate region.

公开(公告)号：US20160285656A1

公开(公告)日：2016-09-29

申请号：US15081381

申请日：2016-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangtaik KIM ,  Seokki AHN ,  Young-Han KIM ,  Hosung PARK ,  Lele WANG ,  Chiao-Yi CHEN ,  Jeongho PARK

IPC: H04L25/03 ,  H04W72/04 ,  H04B7/06

CPC classification number: H04L25/03318 ,  H04B7/0626 ,  H04L25/06

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). A performance of the existing sliding-window superposition coding (SWSC) is degraded when a wireless channel state is changed due to a large scale fading and a small scale fading. In addition, the performance of the existing SWSC is degraded when channel state information at a receiver is different from that of the real channel. To resolve these problems, a transmitter applies an accurate data transmission rate suitable for a channel state. Therefore, a receiver applies an adaptive SWSC and to reduce a block error rate (BLER) and a hybrid automatic repeat request (HARQ) overhead of the receiver. In addition, to resolve wireless channel state change due to large and small scale fading, the transmitter may use the adaptive transmission method.

Abstract translation: 本公开涉及用于支持超过第四代（4G）通信系统（例如长期演进（LTE））的更高数据速率的前5代（5G）或5G通信系统。 当无线信道状态由于大规模衰落和小规模衰落而改变时，现有的滑动窗口叠加编码（SWSC）的性能下降。 此外，当接收机的信道状态信息与真实信道的信道状态信息不同时，现有的SWSC的性能下降。 为了解决这些问题，发射机应用适合于信道状态的精确数据传输速率。 因此，接收机应用自适应SWSC并减少接收机的块错误率（BLER）和混合自动重传请求（HARQ）开销。 此外，为了解决由于大小衰落衰落引起的无线信道状态变化，发射机可以使用自适应传输方法。