公开(公告)号：US20160134448A1

公开(公告)日：2016-05-12

申请号：US14939474

申请日：2015-11-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Nam CHOI ,  Il Gyu KIM ,  Jun Hwan LEE

IPC: H04L27/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L27/2647 ,  H04L27/2657 ,  H04L27/2675

Abstract: A method and apparatus for generating pilot signals in a mobile communication system and a method of estimating a frequency offset using the same are provided. In an environment in which a terminal moves at a high speed, pilot signals are disposed at a first interval in a first range of a transmission frame forming a single transmission unit. Furthermore, pilot signals are disposed at a second interval in a second range of the transmission frame. A frequency offset is estimated based on the pilot signals.

Abstract translation: 提供了一种用于在移动通信系统中生成导频信号的方法和装置以及使用该方法估计频率偏移的方法。 在终端高速移动的环境中，导频信号以构成单个传输单元的传输帧的第一范围内的第一间隔设置。 此外，在传输帧的第二范围内以第二间隔布置导频信号。 基于导频信号估计频率偏移。

公开(公告)号：US20130294399A1

公开(公告)日：2013-11-07

申请号：US13869237

申请日：2013-04-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jun Hwan LEE

IPC: H04W4/00

CPC classification number: H04W4/70

Abstract: A data transmission method for Machine Type Communication (MTC) and a MTC apparatus are disclosed. The data transmission method for MTC includes: dividing each of a plurality of subframes configured with time resources and frequency resources into a first region for transmitting control information and a second region for transmitting data; and allocating resources for MTC to the second region of each subframe according to a predetermined hopping period and a predetermined hopping frequency interval. Accordingly, it is possible to increase the data transfer rate of a MTC apparatus.

Abstract translation: 公开了一种用于机器类型通信（MTC）和MTC设备的数据传输方法。 MTC的数据传输方法包括：将由时间资源和频率资源配置的多个子帧中的每一个划分为用于发送控制信息的第一区域和用于发送数据的第二区域; 以及根据预定的跳频周期和预定的跳频频率间隔，为每个子帧的第二区分配MTC的资源。 因此，可以增加MTC装置的数据传送速率。

公开(公告)号：US20130100899A1

公开(公告)日：2013-04-25

申请号：US13654939

申请日：2012-10-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il Gyu KIM ,  Moon Sik LEE ,  Young Seog SONG ,  Jun Hwan LEE

IPC: H04W72/04

CPC classification number: H04W28/16 ,  H04W72/04

Abstract: Provided are a machine type communication (MTC) device, an apparatus and method for allocating resources to the MTC device, and a data transmission/reception method of the MTC device. The method of allocating resources to at least one user equipment (UE) and the MTC device includes determining whether there are resources allocated for an MTC device in a resource section, and when there are resources allocated for an MTC device, determining the class of the MTC device, determining the bandwidth of a resource region for the MTC device, and configuring a downlink frame according to the bandwidth of the resource region for the MTC device.

Abstract translation: 提供了一种机器类型通信（MTC）设备，用于向MTC设备分配资源的设备和方法以及MTC设备的数据发送/接收方法。 向至少一个用户设备（UE）和MTC设备分配资源的方法包括：确定在资源部分中是否存在为MTC设备分配的资源，并且当存在为MTC设备分配的资源时，确定 MTC设备，确定MTC设备的资源区域的带宽，以及根据MTC设备的资源区域的带宽配置下行链路帧。

公开(公告)号：US20240405936A1

公开(公告)日：2024-12-05

申请号：US18802584

申请日：2024-08-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Jun Hwan LEE ,  Jung Hoon LEE ,  Ji Hyung KIM ,  Ju Ho PARK ,  Cheul Soon KIM ,  Min Hyun KIM

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H04W72/1273 ,  H04W72/23

Abstract: Disclosed is a method and apparatus for transmitting or receiving a control channel in a communication system. A method for transmitting control information by a base station includes: configuring a control resource set including a plurality of REGs; interleaving, on a frequency axis, the plurality of REGs included in the control resource set; configuring an REG pool including at least two interleaved REGs; configuring at least one CCE in the REG pool; and transmitting control information through a search space configured by the at least one CCE. Therefore, the present invention can improve performance of a communication system.

公开(公告)号：US20210359804A1

公开(公告)日：2021-11-18

申请号：US16324174

申请日：2017-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Hung KIM ,  Jun Hwan LEE ,  Jung Hoon LEE ,  Sung Hyun MOON ,  Ju Ho PARK ,  Cheul Soon KIM

IPC: H04L5/00

Abstract: The present invention relates to a resource allocation method and apparatus, and a signal transmission method, which are applicable to various technical scenarios of 5G New Radio (NR). A method for operating a communication node for resource allocation in a communication network includes: allocating first data and a first pilot for a first type service to a first block period of a first subframe; allocating second data and a second pilot for a second type service to a second block period overlapping with the first block period; and transmitting the first subframe to another communication node. Here, at least one of the second data and the second pilot is allocated to an area to which the first data is allocated.

公开(公告)号：US20170038454A1

公开(公告)日：2017-02-09

申请号：US15229324

申请日：2016-08-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Keun Young KIM ,  Yeong Jin KIM ,  Seung Chan BANG ,  Moon Sik LEE ,  Sang Ho LEE ,  Jun Hwan LEE

IPC: G01S3/781 ,  G01S3/801

CPC classification number: G01S3/781 ,  G01S3/801 ,  G01S5/16 ,  G01S5/30

Abstract: Provided is a method for estimating a signal generation position based on signal strength, including: measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point; measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point; calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; and estimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant, wherein the first measurement point, the second measurement point, and the generation position are present on one straight line. This method can be extended to estimate a signal generation point in 2D plane or 3D space.

Abstract translation: 提供了一种用于基于信号强度估计信号生成位置的方法，包括：测量作为在第一测量点处的信号的生成位置传播的信号的强度的第一信号强度; 测量第二信号强度，其是从与第一测量点区分开的第二测量点处的信号的产生位置传播的信号的强度; 计算信号从所述生成位置传播到所述第一测量点和所述第二测量点的介质的衰减常数; 并且通过使用第一信号强度，第二信号强度和衰减常数来估计生成位置，其中第一测量点，第二测量点和生成位置存在于一条直线上。 该方法可以扩展到2D平面或3D空间中的信号生成点。

公开(公告)号：US20160192401A1

公开(公告)日：2016-06-30

申请号：US14982305

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: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W72/0453 ,  H04W72/046

Abstract: In a communications system using a plurality of beams, a terminal determines a beam to be communicated with the terminal among the plurality of beams, determines one sequence among sequences allocated to the determined beam as a beam based random access preamble, and transmits the beam based random access preamble through the determined beam. In addition, if a random access response for the beam based random access preamble is not received from a base station for a set interval, the terminal determines one sequence among sequences in a cell based random access preamble collection as a cell based random access preamble and transmits the cell based random access preamble.

Abstract translation: 在使用多个波束的通信系统中，终端确定要在多个波束中与终端通信的波束，将分配给所确定的波束的序列中的一个序列确定为基于波束的随机接入前导码，并且基于波束 随机接入前导码通过确定的波束。 此外，如果基站的随机接入前导码的随机接入响应没有从基站接收到设定的间隔，则终端确定基于小区的随机接入前导码集合中的序列之中的一个序列作为基于小区的随机接入前导，以及 发送基于小区的随机接入前同步码。

公开(公告)号：US20160149688A1

公开(公告)日：2016-05-26

申请号：US14952476

申请日：2015-11-25

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04L5/00 ,  H04W72/12 ,  H04B17/336

CPC classification number: H04L5/0057 ,  H04B17/24 ,  H04B17/336 ,  H04L5/0048 ,  H04W72/1231

Abstract: Provided is a method for feeding back a channel quality indicator (CQI) by a terminal. The terminal receives, from a base station, at least one reference signal through at least one of multiple beams of the base station. The terminal measures a signal-to-interference plus noise ratio (SINR) for the at least one reference signal. The terminal determines a first level corresponding to the measured SINR among levels of a first CQI. In addition, the terminal feeds back the first CQI having the first level to the base station.

Abstract translation: 提供了一种通过终端反馈信道质量指示符（CQI）的方法。 终端通过基站的多个波束中的至少一个从基站接收至少一个参考信号。 终端测量至少一个参考信号的信号与干扰加噪声比（SINR）。 终端确定与第一CQI的电平中测量的SINR相对应的第一电平。 此外，终端将具有第一级的第一CQI反馈给基站。

公开(公告)号：US20140073337A1

公开(公告)日：2014-03-13

申请号：US14023050

申请日：2013-09-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Eun HONG ,  Moon Sik LEE ,  Young Seog SONG ,  Jun Hwan LEE ,  Eun Young CHOI ,  Il Gyu KIM ,  Seung Chan BANG

IPC: H04W72/12

CPC classification number: H04W72/1231 ,  H01Q1/246 ,  H01Q21/205 ,  H04W72/046 ,  H04W72/1278

Abstract: There are provided a communication device using a millimeter-wave frequency band and a communication method using the millimeter-wave frequency band. The communication device includes a beam scheduling unit configured to schedule uplink and downlink beams corresponding to movement of a terminal, a core network interface unit configured to transmit data provided from the beam scheduling unit to a core network, and to provide data received from the core network to the beam scheduling unit, a mobility management unit configured to configure an uplink and downlink beam set based on inter-beam interference information provided from the beam scheduling unit, and an inter-base station interface unit configured to exchange a control message with another base station under control of the mobility management unit. Therefore, it is possible to efficiently build a cellular network using the millimeter-wave frequency band.

Abstract translation: 提供了使用毫米波频带的通信装置和使用毫米波频带的通信方法。 通信装置包括：波束调度单元，被配置为调度与终端的移动对应的上行链路和下行链路波束;核心网络接口单元，被配置为将从波束调度单元提供的数据发送到核心网络;以及提供从所述核心接收的数据 网络到波束调度单元，移动性管理单元，被配置为基于从波束调度单元提供的波束间干扰信息来配置上行链路和下行链路波束组;以及基站间接口单元，被配置为与另一个交换控制消息 基站由移动管理单元控制。 因此，可以有效地构建使用毫米波频带的蜂窝网络。

公开(公告)号：US20250056353A1

公开(公告)日：2025-02-13

申请号：US18798731

申请日：2024-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon CHO ,  Mi Young YUN ,  Moon Sik LEE ,  Jun Hwan LEE

IPC: H04W36/08 ,  H04W36/00

Abstract: A method of a terminal may comprise: obtaining target satellite-related information from a source satellite; performing satellite switching from the source satellite to a target satellite based on the target satellite-related information; and performing communication with the target satellite based on the target satellite-related information after performing the satellite switching.