公开(公告)号：US20200052778A1

公开(公告)日：2020-02-13

申请号：US16181149

申请日：2018-11-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jonggyu OH ,  Pansoo KIM ,  Deock Gil OH ,  Joon Gyu RYU ,  Soo Yeob JUNG

IPC: H04B7/185 ,  H04B7/155 ,  H04W72/04

Abstract: Disclosed is a communication method performed between a satellite and a ground station and apparatuses performing the communication method. The communication method includes transmitting a plurality of frames based on a beam allocation time schedule (BATS) between a satellite and a ground station, and synchronizing the BATS based on a reception time and a detection time of one or more frames among the plurality of frames to be received through a beam open window (BOW) allocated to the ground station.

公开(公告)号：US20180241460A1

公开(公告)日：2018-08-23

申请号：US15726006

申请日：2017-10-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Ha HONG ,  Mankyu PARK ,  Deock Gil OH ,  Joon Gyu RYU ,  Dae Ig CHANG

IPC: H04B7/185 ,  H04H20/74 ,  H04H40/90 ,  H04H60/90 ,  H04N7/20

CPC classification number: H04B7/185 ,  H04H20/42 ,  H04H20/74 ,  H04H40/90 ,  H04H60/80 ,  H04H60/90 ,  H04H2201/33 ,  H04L27/0008 ,  H04N7/20

Abstract: Disclosed is a star network/mesh network accessing method and apparatus of a terminal in a satellite communication system, the method including receiving time slot resources from a central station and operating in a time division multiple access (TDMA) start network communication mode between the central station and a terminal, transferring, to the central station, a TDMA mesh network connection request message for a destination terminal, receiving traffic burst time plan (TBTP) information corresponding to the TDMA mesh network connection request message from the central station and operating in a TDMA mesh network communication mode between terminals, and switching from the TDMA mesh network communication mode between the terminals to a single channel per carrier (SCPC) mesh network communication mode between the terminals when Voice over Internet Protocol (VoIP) traffic is greater than a threshold.

公开(公告)号：US20160218796A1

公开(公告)日：2016-07-28

申请号：US15006527

申请日：2016-01-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Gyu RYU

IPC: H04B7/185 ,  H04W24/08

CPC classification number: H04B7/18513 ,  H04B7/18517

Abstract: A satellite communication system and a method of cancelling interference in the satellite communication system are disclosed. The method of cancelling interference in the satellite communication system may include receiving a signal by a central station from a terminal via a satellite transponder, estimating, from the signal, a nonlinear characteristic associated with a central station signal transmitted from the central station, and cancelling an interference signal from the signal using the estimated nonlinear characteristic.

Abstract translation: 公开了卫星通信系统和消除卫星通信系统中的干扰的方法。 消除卫星通信系统中的干扰的方法可以包括通过卫星转发器从终端接收中心站的信号，从该信号估计与从中心站发送的中心站信号相关联的非线性特性，以及取消 来自使用估计的非线性特性的信号的干扰信号。

公开(公告)号：US20140150035A1

公开(公告)日：2014-05-29

申请号：US13909439

申请日：2013-06-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Joon Gyu RYU ,  Jun Gil JEON ,  Min Su SHIN ,  Deock Gil OH

IPC: H04N21/44 ,  H04N21/438 ,  H04N21/442

CPC classification number: H04N21/44209 ,  H04H20/42 ,  H04H40/90 ,  H04N7/20 ,  H04N21/4382 ,  H04N21/6143

Abstract: Provided is an apparatus and a method for receiving a satellite broadcast. The method may include estimating a channel using signal-to-noise ratio (SNR) information being received, determining a video signal to be received among at least two video signals based on the estimated channel, and controlling selective reception of the determined video signal.

Abstract translation: 提供了一种用于接收卫星广播的装置和方法。 该方法可以包括使用正在接收的信噪比（SNR）信息估计信道，基于所估计的信道确定要在至少两个视频信号中接收的视频信号，以及控制所确定的视频信号的选择性接收。

公开(公告)号：US20140082674A1

公开(公告)日：2014-03-20

申请号：US13803464

申请日：2013-03-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Su SHIN ,  Joon Gyu RYU ,  Jang Hee KANG ,  Deock Gil OH

IPC: H04N21/61

CPC classification number: H04N21/6193 ,  H04L1/0041 ,  H04N21/2383

Abstract: Provided is a data processing apparatus and method that may initialize baseband frame data that is newly input, and may randomize the baseband frame data based on a byte unit. Also, provided is a data processing system and method that may configure baseband frame data by randomizing the baseband frame data based on the byte unit in performing mode adaptation and stream adaptation with respect to a received transport stream (TS) packet, and may perform channel encoding of the baseband frame data.

Abstract translation: 提供一种数据处理装置和方法，其可以初始化新输入的基带帧数据，并且可以基于字节单元使基带帧数据随机化。 此外，提供了一种数据处理系统和方法，其可以通过在执行模式适配和相对于接收的传输流（TS）分组的流适配）中基于字节单元随机化基带帧数据来配置基带帧数据，并且可以执行信道 基带帧数据的编码。