公开(公告)号：US20180198500A1

公开(公告)日：2018-07-12

申请号：US15106644

申请日：2014-12-22

申请人： Samsung Electronics Co., Ltd. ,  Purdue Research Foundation

发明人： Junil CHOI ,  David J. LOVE ,  Tae-Young KIM ,  Ji-Yun SEOL

IPC分类号： H04B7/04

CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04L1/006

摘要： 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). Exemplary embodiment of the present invention provide a scheme for reducing feedback overhead when quantizing and feeding back channel state information in a MIMO system. A method for operating a receiver in a MIMO system, according to one embodiment of the present invention, includes the steps of: performing trellis coded quantization for channel information by using a codebook selected from a plurality of codebooks; and transmitting, to a transmitter, feedback information including the quantization result. The step of performing trellis-coded quantization for the channel information includes a step of truncating the channel information and codewords included in the selected codebook into multiple groups of channel vectors and multiple groups of codewords, respectively, and performing trellis-coded quantization for each of the groups of the channel vectors by using each of the groups of the codewords.

公开(公告)号：US20180152222A1

公开(公告)日：2018-05-31

申请号：US15578045

申请日：2016-05-27

申请人： Samsung Electronics Co., Ltd.

发明人： Hyun-Il YOO ,  Tae-Young KIM ,  Jee-Hwan NOH ,  Ji-Yun SEOL

IPC分类号： H04B7/04 ,  H04L25/02 ,  H04B7/0456

CPC分类号： H04B7/043 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0695 ,  H04B7/088 ,  H04L25/0204 ,  H04L25/0216 ,  H04L25/0226

摘要： The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. The present disclosure relates to a method for a transmission end to estimate a channel in a communication system supporting multiple input multiple output (MIMO)-based beamforming, the method comprising: a step of obtaining a candidate channel estimate of each of a plurality of candidate beam combinations by means of a channel estimation section corresponding to each of the plurality of candidate beam combinations, the combinations consisting of at least one transmission beam and at least one reception beam from among transmission beams of the transmission end and reception beams of a reception end, wherein the channel estimation section corresponding to each of the plurality of candidate beam combinations comprises a serving channel estimation section corresponding to a serving beam combination of the transmission end and the reception end, a channel gain estimation section of one candidate beam combination of the plurality of candidate beam combinations, and a channel estimation section of the candidate beam combination; and a step of obtaining an optimal channel estimation value of the transmission end and the reception end on the basis of the obtained candidate channel estimates.

公开(公告)号：US20180083679A1

公开(公告)日：2018-03-22

申请号：US15560979

申请日：2016-03-14

申请人： Samsung Electronics Co., Ltd

发明人： Jong-Bu LIM ,  Ji-Yun SEOL ,  Byung-Hwan LEE

IPC分类号： H04B7/06 ,  H04B17/336 ,  H04L5/14

CPC分类号： H04B7/0617 ,  H04B7/06 ,  H04B7/0632 ,  H04B7/0695 ,  H04B17/336 ,  H04B17/345 ,  H04L5/14 ,  H04W88/08

摘要： The present invention relates to a 5th-generation (5G) or pre-5G communication system provided for supporting higher data transmission rates than 4th-generation (4G) communication system such as long term evolution (LTE). The present invention relates to a method in which an access point (AP) operates a full-duplex scheme in a communication system supporting a beam-forming scheme, the method comprising the steps of: generating a magnetic interference intensity table according to transmitted beam patterns and received beam patterns; determining, by the AP, a transmitted beam pattern and a received beam pattern for all stations (STAs) on the basis of channel measurement feedback information received from the stations, which provide service, and the electromagnetic-interference intensity table; and performing a communication operation with each of the stations on the basis of the determined transmitted beam pattern and received beam pattern.

公开(公告)号：US20140126449A1

公开(公告)日：2014-05-08

申请号：US14153555

申请日：2014-01-13

申请人： Samsung Electronics Co., Ltd.

发明人： Mi-Hyun LEE ,  Jung-Je SON ,  Ji-Yun SEOL

IPC分类号： H04W52/02

CPC分类号： H04W52/0206 ,  H04L1/0019 ,  H04L1/0022 ,  H04L1/0025 ,  H04L47/58 ,  H04W48/12 ,  H04W52/0216 ,  H04W84/045 ,  Y02D70/00

摘要： An apparatus and a method for transmitting control information in a small base station of a wireless communication system are provided. In the method, when the small base station operates in a Low Duty operation Mode (LDM) in a superframe, a control signal including LDM operation information is generated. Only a subframe via which a preamble, a control signal including the LDM operation information, and a SuperFrame Header (SFH) are transmitted is transmitted during the superframe. When the small base station operates in a normal operation mode in a superframe, at least one of the control information and data is transmitted via at least one subframe of the superframe.

摘要翻译： 提供了一种用于在无线通信系统的小型基站中发送控制信息的装置和方法。 在该方法中，当小型基站在超帧中以低占空比运行模式（LDM）运行时，产生包括LDM运算信息的控制信号。 在超帧期间仅传送发送前导码，包括LDM操作信息的控制信号和超帧头（SFH）的子帧。 当小型基站在超帧中以正常操作模式操作时，通过超帧的至少一个子帧来发送控制信息和数据中的至少一个。

公开(公告)号：US20130260772A1

公开(公告)日：2013-10-03

申请号：US13855261

申请日：2013-04-02

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Tae-Young KIM ,  Tae-Soo KWON ,  Ju-Yong LEE ,  Ji-Yun SEOL

IPC分类号： H04W28/16

CPC分类号： H04W28/16 ,  H04W72/085

摘要： An apparatus and a method for configuring and managing/controlling a cluster, which is a set of Base Stations (BSs) for transmitting signals cooperatively, are provided. The method includes broadcasting cluster set information indicating information about a plurality of clusters including a serving BS to a User Equipment (UE), receiving a report of information about Received Signal Strength Indicators (RSSIs) of control signals transmitted from BSs included in the plurality of clusters from the UE, and assigning any one of the plurality of clusters to a cluster for servicing the UE based on the information about the RSSIs of the control signals.

摘要翻译： 提供了一种用于配置和管理/控制集群的装置和方法，所述集群是用于协同传送信号的一组基站（BS）。 该方法包括向用户设备（UE）广播指示关于包括服务BS的多个集群的信息的集群集信息，接收关于从包括在多个服务器中的BS发送的控制信号的接收信号强度指示符（RSSI）的信息的报告 并且基于关于控制信号的RSSI的信息，将多个集群中的任何一个分配给用于服务于UE的集群。

公开(公告)号：US20130172002A1

公开(公告)日：2013-07-04

申请号：US13729807

申请日：2012-12-28

申请人： Samsung Electronics Co., Ltd.

发明人： Hyun-Kyu YU ,  Tae-Young KIM ,  Ji-Yun SEOL ,  Su-Ryong JEONG ,  Jeong-Ho PARK

IPC分类号： H04W72/04

CPC分类号： H04W72/046 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0695 ,  H04L1/0668

摘要： A data transmission method for a base station to acquire transmission beam diversity in a wireless communication system is provided. The data transmission method includes selecting at least two transmission beams to be used for data transmission from among multiple transmission beams corresponding to transmission beam information, if receiving the transmission beam information regarding the multiple transmission beams from a terminal, and transmitting data encoded with a predetermined orthogonalization code to the terminal via the selected at least two transmission beams.

摘要翻译： 提供了一种用于基站在无线通信系统中获取传输波束分集的数据传输方法。 数据传输方法包括从对应于传输波束信息的多个传输波束中选择要用于数据传输的至少两个传输波束，如果从终端接收到关于多个传输波束的传输波束信息，以及发射以预定的 通过所选择的至少两个发送波束向终端发送正交码。

公开(公告)号：US20180324850A1

公开(公告)日：2018-11-08

申请号：US15971602

申请日：2018-05-04

申请人： Samsung Electronics Co., Ltd

发明人： Saidhiraj AMURU ,  Hyunil YOO ,  Anshuman NIGAM ,  Ji-Yun SEOL ,  Taeyoung KIM

IPC分类号： H04W74/00 ,  H04J11/00

CPC分类号： H04W74/006 ,  H04J11/0073 ,  H04J11/0076 ,  H04J11/0079 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0091 ,  H04W48/12 ,  H04W74/0833

摘要： The present disclosure is related to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate than a 4th generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, a method for operating a base station in a wireless communication system is provided. The method comprises: generating remaining minimum system information (RMSI) comprising random access channel (RACH) configuration, wherein the RACH configuration comprises an association between RACH resources and one of a synchronization signal (SS) block and channel state information reference signal (CSI-RS) resources; and transmitting, to a user equipment (UE), the RMSI.

公开(公告)号：US20180205533A1

公开(公告)日：2018-07-19

申请号：US15742699

申请日：2016-06-30

申请人： Samsung Electronics Co., Ltd.

发明人： Byung-Hwan LEE ,  Jong-Bu LIM ,  Ji-Yun SEOL ,  Chae-Hee LIM ,  Su-Ryong JEONG ,  Sung-Nam HONG

IPC分类号： H04L5/14

摘要： Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for cancelling self-interference in a full-duplex communication system is provided. The method comprises the steps of: cancelling cancellable self-interference components through an analog interference cancellation circuit, and estimating a channel state of an uplink channel and a channel state of a downlink channel on the basis of remaining residual self-interference components; estimating a channel capacity for each of possible beam combinations on the basis of the estimated uplink channel state and downlink channel state; selecting the beam combination having the largest channel capacity from among the possible beam combinations; and cancelling self-interference from a received signal on the basis of the selected beam combination.

公开(公告)号：US20170230095A1

公开(公告)日：2017-08-10

申请号：US15496633

申请日：2017-04-25

申请人： Samsung Electronics Co., Ltd.

发明人： Tae-Young KIM ,  Hyun-Kyu YU ,  Ji-Yun SEOL

IPC分类号： H04B7/06 ,  H04B7/0456 ,  H04B7/0452

CPC分类号： H04B7/0617 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0604 ,  H04B7/0639

摘要： A communication method and an apparatus using beamforming in a wireless communication system are provided. The communication method includes determining a candidate user set including one or more Mobile Stations (MSs), for Multiple User-Multiple Input Multiple Output (MU-MIMO) transmission, transmitting beam information indicating best Base Station (BS) transmission beams of the MSs of the candidate user set to the MSs of the candidate user set, receiving Precoding Matrix Index (PMI) information indicating a PMI to be used for baseband precoding from each of the MSs of the candidate user set, the PMI information being determined based on the beam information, and transmitting a signal precoded based on the PMI information to at least one MS.

公开(公告)号：US20150249995A1

公开(公告)日：2015-09-03

申请号：US14715843

申请日：2015-05-19

申请人： Samsung Electronics Co., Ltd.

发明人： Jeong-Ho PARK ,  Su-Ryong JEONG ,  Ji-Yun SEOL ,  Hyun-Kyu YU

IPC分类号： H04W72/08 ,  H04L5/00 ,  H04B7/04

CPC分类号： H04W72/08 ,  H04B7/0408 ,  H04B7/043 ,  H04B7/0632 ,  H04B7/10 ,  H04L5/0057 ,  H04W16/28 ,  H04W84/045

摘要： A method for operating a base station in a wireless communication system in order to support a plurality of propagation characteristics is provided. The method includes allocating resource periods for respective propagation characteristics, transmitting system information including information on the propagation characteristics, transmitting a reference signal with the propagation characteristic corresponding to the relevant resource period through at least one of the resource periods, and receiving feedback information determining channel qualities for all of the propagation characteristics.

摘要翻译： 提供了一种用于在无线通信系统中操作基站以便支持多个传播特性的方法。 该方法包括：为相应传播特性分配资源周期，发送包括关于传播特性的信息的系统信息，通过至少一个资源周期发送具有与相关资源周期对应的传播特性的参考信号，以及接收反馈信息确定信道 所有传播特性的品质。