公开(公告)号：US20160080046A1

公开(公告)日：2016-03-17

申请号：US14852217

申请日：2015-09-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Duk Hyun YOU

IPC: H04B7/04 ,  H04L27/20 ,  H04L5/00

CPC classification number: H04B7/0413 ,  H01Q21/28 ,  H04L5/005 ,  H04L27/20

Abstract: A modulation method of a baseband signal, an apparatus thereof, and a receiving apparatus thereof in a beam space MIMO are disclosed. The baseband signal modulation apparatus may calculate a load value of a plurality of antenna elements by using the baseband signal. Also, the baseband signal modulation apparatus may change the phase or the magnitude for the baseband signal or a first band signal of a higher frequency than the baseband signal by corresponding to the frequency of the baseband signal.

Abstract translation: 公开了一种波束空间MIMO中的基带信号的调制方法及其装置及其接收装置。 基带信号调制装置可以通过使用基带信号来计算多个天线元件的负载值。 此外，基带信号调制装置可以通过对应于基带信号的频率来改变基带信号的相位或幅度或比基带信号高的频率的第一频带信号。

公开(公告)号：US20240178892A1

公开(公告)日：2024-05-30

申请号：US18522922

申请日：2023-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU

IPC: H04B7/0456 ,  H04B7/10

CPC classification number: H04B7/0469 ,  H04B7/10

Abstract: A method of a first communication node may comprise: generating a first polarized signal by performing first baseband processing on a first set of modulation symbols; generating a second polarized signal by multiplying the first polarized signal by a first conversion matrix; and transmitting the second polarized signal to a second communication node.

公开(公告)号：US20200186293A1

公开(公告)日：2020-06-11

申请号：US16692401

申请日：2019-11-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU

IPC: H04L1/18 ,  H03M13/00 ,  H03M13/05 ,  H03M13/27

Abstract: Methods and apparatuses for HARQ in a non-terrestrial network are disclosed. An operation method of a first node may comprise receiving a transport block (TB) from a second node; classifying total soft bits for the TB into information values and sign values; configuring the information values of the total soft bits into one or more subsets; performing a compression operation on each of the one or more subsets; and performing a compression operation on the sign values. Therefore, performance of the communication system can be improved.

公开(公告)号：US20230231623A1

公开(公告)日：2023-07-20

申请号：US18124394

申请日：2023-03-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU

IPC: H04B7/185 ,  H04B7/195 ,  H04L5/00 ,  H04L1/1812 ,  H04L1/00

CPC classification number: H04B7/18543 ,  H04B7/195 ,  H04L5/0055 ,  H04L1/1819 ,  H04L1/0038

Abstract: An operation method of a first communication node in a communication system may comprise receiving one or more transport blocks (TBs) from a second communication node based on transmission parameters in an aggregated transmission period #n; generating decoding results for the one or more TBs; generating information required for changing the transmission parameters based on the decoding results; and transmitting the required information to the second communication node, wherein n is a natural number.

公开(公告)号：US20160072561A1

公开(公告)日：2016-03-10

申请号：US14844783

申请日：2015-09-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU ,  Seung Eun HONG

IPC: H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0413 ,  H04B7/0617

Abstract: A method and apparatus for modulating a baseband signal in beam space MIMO are provided. The baseband signal modulation apparatus may calculate a load value of a plurality of antenna elements using a baseband signal. The baseband signal modulation apparatus may change a phase or a magnitude of a baseband signal or a first band signal having a higher frequency than that of the baseband signal to correspond to the calculated load value.

Abstract translation: 提供了一种用于调制波束空间MIMO中的基带信号的方法和装置。 基带信号调制装置可以使用基带信号来计算多个天线元件的负载值。 基带信号调制装置可以改变具有比基带信号的频率高的基带信号或第一频带信号的相位或幅度，以对应于所计算的负载值。

公开(公告)号：US20240179541A1

公开(公告)日：2024-05-30

申请号：US18523561

申请日：2023-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Eun YU ,  Kwang Myeong YANG ,  Kyu Yeon LEE ,  Cha Hyeon EOM ,  Hyung Je LEE ,  Chung Yong LEE ,  Duk Hyun YOU ,  Hoon Dong NOH

IPC: H04W24/02 ,  H04B17/336 ,  H04L43/06

CPC classification number: H04W24/02 ,  H04B17/336 ,  H04L43/06 ,  H04W84/06

Abstract: A method of a first communication node may comprise: transmitting, to a second communication node, an initiation signal indicating to initiate a collection procedure of training data for a neural network; transmitting, to the second communication node, an information signal including network parameters of the first communication node; receiving, from the second communication node, the training data in response to the information signal; training the neural network using the training data; determining optimal network parameters using the trained neural network; and performing communication with the second communication node using the optimal network parameters.

公开(公告)号：US20220216950A1

公开(公告)日：2022-07-07

申请号：US17565111

申请日：2021-12-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Duk Hyun YOU

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

Abstract: An operation method of a first communication node including a PHY layer, a MAC layer, and an RLC layer may comprise: delivering, by the MAC layer, first information requesting transmission of one or more RLC SDUs to the RLC layer; selecting, by the RLC layer, at least one RLC SDU based on the first information; performing, by the RLC layer, a segment operation on the at least one RLC SDU; delivering, by the RLC layer, an RLC PDU generated based on a result of the segment operation to the MAC layer; delivering, by the MAC layer, a MAC PDU generated based on the RLC PDU to the PHY layer; and transmitting, by the PHY layer, a PPDU generated based on the MAC PDU to a second communication node.

公开(公告)号：US20190334661A1

公开(公告)日：2019-10-31

申请号：US16264577

申请日：2019-01-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU

IPC: H04L1/18

Abstract: Provided are a method and an apparatus for transmission and reception based on hybrid automatic repeat request in a communication system. A first communication node includes a coherent channel region (CCR) mapper configured to determine W representative soft bit values for each CCR on the basis of X original soft bit values of signals and determine a sign sequence of the X original soft bit values, and a CCR demapper configured to restore X soft bit values for each CCR using W representative soft bit values and a sign sequence. Since the CCR mapper compresses soft bits using channel coherency, a hybrid automatic repeat request (HARD) buffer size is reduced compared to that of an existing method. Therefore, performance of a communication system may be improved.

公开(公告)号：US20160072571A1

公开(公告)日：2016-03-10

申请号：US14846223

申请日：2015-09-04

Applicant: Electronics and Telecommunications Research Institute ,  GAMMA NU, INC.

Inventor： Seung Eun HONG ,  Kyoungsub OH ,  Sang-jin KIM ,  Duk Hyun YOU ,  Il Gyu KIM

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0413 ,  H01Q21/28

Abstract: A method and an apparatus for beam-space multi-input multi-output (MIMO) transmission based load-modulation are disclosed. The apparatus for beam-space MIMO transmission includes: a plurality of impedance loading circuits each including a plurality of imaginary number impedance elements; a beam-space MIMO control unit calculating loading values of the plurality of imaginary number impedance elements in response to a spatial multiplexing signal; and an RF chain unit generating a first signal having a predetermined carrier frequency.

Abstract translation: 公开了一种用于基于波束空间多输入多输出（MIMO）传输的负载调制的方法和装置。 用于波束空间MIMO传输的装置包括：多个阻抗加载电路，每个包括多个虚数阻抗元件; 波束空间MIMO控制单元，响应于空间复用信号计算多个虚数阻抗元件的负载值; 以及产生具有预定载波频率的第一信号的RF链单元。

公开(公告)号：US20210143899A1

公开(公告)日：2021-05-13

申请号：US17086724

申请日：2020-11-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Hyun YOU

IPC: H04B7/185 ,  H04B7/195 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00

Abstract: An operation method of a first communication node in a communication system includes receiving one or more transport blocks (TBs) from a second communication node based on transmission parameters in an aggregated transmission period #n; generating decoding results for the one or more TBs; generating information required for changing the transmission parameters based on the decoding results; and transmitting the required information to the second communication node, wherein n is a natural number.