公开(公告)号：US20160128042A1

公开(公告)日：2016-05-05

申请号：US14926251

申请日：2015-10-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun-Young CHOI ,  Young Seog SONG ,  Seung Eun HONG ,  Il Gyu KIM ,  Seung Chan BANG

IPC: H04W72/04

CPC classification number: H04L5/00 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L25/00 ,  H04W72/0473

Abstract: A method and apparatus for simultaneously transmitting data to a plurality of terminals are provided. The method includes: selecting a plurality of simultaneous transmitting terminals based on a signal-to-noise ratio (SNR) of the plurality of terminals; allocating a power rate of the plurality of simultaneous transmitting terminals to each of the plurality of simultaneous transmitting terminals; modulating each of the data according to a modulation method that is determined based on the power rate; and transmitting the modulated data according to the power rate.

Abstract translation: 提供了一种用于同时向多个终端发送数据的方法和装置。 该方法包括：基于多个终端的信噪比（SNR）来选择多个同时发送终端; 将多个同时发送终端的功率率分配给多个同时发送终端中的每一个; 根据基于功率率确定的调制方法对每个数据进行调制; 并根据功率率发送调制数据。

公开(公告)号：US20140010243A1

公开(公告)日：2014-01-09

申请号：US14027517

申请日：2013-09-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Taehyun JEON ,  Myung-Soon KIM ,  Eun-Young CHOI ,  Sok-kyu LEE ,  Deuk-Su LYU

IPC: H04L27/26

CPC classification number: H04W28/065 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

Abstract: In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

Abstract translation: 在本发明中，从源单元产生的数据被分配到至少一个带宽; 分配给相应带宽的数据被编码以便执行纠错; 编码数据被分配到至少一个天线; 对分配给各天线的数据分配副载波，进行逆傅立叶变换; 产生与副载波对应的短前导码和第一长前导码; 根据数据发送模式生成信号符号; 并且通过在信号符号和数据字段之间添加第二长前置码来产生帧，以便估计未被使用的子载波的信道。

公开(公告)号：US20210152407A1

公开(公告)日：2021-05-20

申请号：US17151094

申请日：2021-01-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il-Gu LEE ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC: H04L27/26 ,  H04L27/00 ,  H04L27/22 ,  H04W72/04 ,  H04L5/00 ,  H04L27/227 ,  H04L27/34

Abstract: A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

公开(公告)号：US20200351133A1

公开(公告)日：2020-11-05

申请号：US16931472

申请日：2020-07-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il-Gu LEE ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC: H04L27/26 ,  H04L27/00 ,  H04L27/22 ,  H04W72/04 ,  H04L5/00 ,  H04L27/227 ,  H04L27/34

Abstract: A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

公开(公告)号：US20180262900A1

公开(公告)日：2018-09-13

申请号：US15577601

申请日：2017-04-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Hyun MOON ,  Cheulsoon KIM ,  Ji Hyung KIM ,  Minhyun KIM ,  Junghoon LEE ,  Eun-Young CHOI

IPC: H04W8/00 ,  H04J11/00

Abstract: A transmission method of a base station is provided. The base station generates a first discovery signal block including a first PSS (primary synchronization signal) and a first SSS (secondary synchronization signal). The base station generates a second discovery signal block including a second PSS and a second SSS. Also, the base station transmits the first discovery signal block and the second discovery signal block.

公开(公告)号：US20160192336A1

公开(公告)日：2016-06-30

申请号：US14984288

申请日：2015-12-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun-Young CHOI ,  Juho PARK ,  Young Seog SONG ,  Jun Hwan LEE ,  Young Jo KO ,  Seung Chan BANG

IPC: H04W72/04 ,  H04B7/04

CPC classification number: H04W72/042 ,  H04B7/0695

Abstract: A method for transmitting downlink control information in a base station that operates a plurality of beams in one cell includes: configuring an individual control channel region allocated to each of the plurality of beams; configuring a shared control channel region shared with first and second beams that are adjacent to each other among the plurality of beams; allocating a control channel of a terminal positioned in a service coverage of the first beam to one of an individual control channel region of the first beam and the shared control channel region shared with the first and second beams; and in a case where the control channel of the terminal is allocated to the shared control channel region shared with the first and second beams, forming the first and second beams such that user control information of the terminal is transmitted through the shared control channel region shared with the first and second beams.

Abstract translation: 一种用于在一个小区中操作多个波束的基站中发送下行链路控制信息的方法包括：配置分配给多个波束中的每一个的单独控制信道区域; 配置与所述多个波束之间彼此相邻的第一和第二波束共享的共享控制信道区域; 将位于第一波束的服务覆盖范围内的终端的控制信道分配给与第一和第二波束共享的第一波束和共享控制信道区域的单独控制信道区域之一; 并且在终端的控制信道被分配给与第一和第二波束共享的共享控制信道区域的情况下，形成第一和第二波束，使得终端的用户控制信息通过共享的共享控制信道区域被发送 与第一和第二梁。

公开(公告)号：US20160191201A1

公开(公告)日：2016-06-30

申请号：US14982430

申请日：2015-12-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Juho PARK ,  Young Seog SONG ,  Jun Hwan LEE ,  Eun-Young CHOI ,  Young Jo KO ,  Seung Chan BANG

IPC: H04L1/00 ,  H04B7/06 ,  H04W24/10 ,  H04B17/309

CPC classification number: H04L1/0026 ,  H04B7/0632 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/066

Abstract: When a terminal of a mobile communication system using a plurality of beams receives information on a channel quality indicator (CQI) transmission mode from a base station, the terminal measures a CQI of a beam to feed back the CQI information according to the CQI transmission mode, transmits information of the beam to feed back the CQI information according to the CQI transmission mode, and thereafter, feeds back the measured CQI information of the beam to the base station.

Abstract translation: 当使用多个波束的移动通信系统的终端从基站接收到关于信道质量指示（CQI）传输模式的信息时，终端根据CQI传输模式来测量波束的CQI以反馈CQI信息 发送光束的信息以根据CQI传输模式反馈CQI信息，然后将测量的CQI信息反馈给基站。

公开(公告)号：US20150372853A1

公开(公告)日：2015-12-24

申请号：US14842623

申请日：2015-09-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： IL-Gu LEE ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC: H04L27/34 ,  H04L27/26

CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

Abstract: A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

Abstract translation: 一种在支持多传输模式的无线通信系统中自动检测分组模式的方法包括：从发送的帧中获取数据速率信息，分组长度信息和信道带宽信息中的至少一个; 以及根据在信号场信号之后发送的符号的相位旋转检查结果和从发送帧获取的数据速率信息，分组长度信息和信道带宽信息中的至少一个来确定分组模式。

公开(公告)号：US20150207657A1

公开(公告)日：2015-07-23

申请号：US14676551

申请日：2015-04-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： IL-Gu LEE ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC: H04L27/34 ,  H04L5/00 ,  H04L27/227

CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

Abstract: A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.

公开(公告)号：US20150139215A1

公开(公告)日：2015-05-21

申请号：US14609586

申请日：2015-01-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Taehyun JEON ,  Myung-Soon KIM ,  Eun-Young CHOI ,  Sok-kyu LEE ,  Deuk-Su LYU

IPC: H04W28/06

CPC classification number: H04W28/065 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

Abstract: In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.