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公开(公告)号：US20170141855A1
公开(公告)日：2017-05-18
申请号：US15260964
申请日：2016-09-09
Inventor： Joon Gyu RYU
IPC: H04B15/00
CPC classification number: H04B15/00 , H04B7/185 , H04B7/1851 , H04B7/18519 , H04B7/212 , H04B7/2656 , H04L7/0008 , H04N21/8547 , H04W56/0015
Abstract: Provided is an apparatus for an interference signal cancellation of a central station. The apparatus includes: a communication unit; a storage unit configured to store a transmission signal of the central station received via the communication unit; and a signal processor configured to extract first time synchronization information (NCR) of a current time and second time synchronization information (NCR) included in an overlapping signal and calculate a difference value between the two time synchronization information, when the overlapping signal which is an overlapped signal of a terminal station is received on the same channel as a channel of the transmission signal of the central station, and to extract the transmission signal of the central station stored in a previous time in the storage unit based on the difference value and remove an interference signal included in the overlapping signal.
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12.发明申请ADAPTIVE CODING AND MODULATION APPARATUS AND METHOD FOR FORWARD LINK IN SATELLITE COMMUNICATION 有权自适应编码和调制装置和卫星通信中的前向链路的方法公开(公告)号：US20140056335A1
公开(公告)日：2014-02-27
申请号：US13972288
申请日：2013-08-21
Inventor： Joon Gyu RYU , Do Huy WANG , Deock Gil OH
IPC: H04B7/185
CPC classification number: H04B7/18519 , H04L1/0003 , H04L1/0009 , H04L1/0015
Abstract: An adaptive coding and modulation (ACM) apparatus and method for a forward link in satellite communication is provided. The ACM apparatus may include a receiving unit to receive a signal-to-noise ratio (SNR) of a received signal, a determination unit to determine whether the SNR of the received signal is less than or equal to a threshold value, and a processing unit to execute a channel prediction algorithm when the SNR of the received signal is determined to be less than or equal to the threshold value.
Abstract translation: 提供了用于卫星通信中的前向链路的自适应编码和调制（ACM）装置和方法。 ACM装置可以包括：接收单元，用于接收接收信号的信噪比（SNR）;确定单元，用于确定接收信号的SNR是否小于或等于阈值;以及处理 当接收信号的SNR被确定为小于或等于阈值时执行信道预测算法的单元。
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公开(公告)号：US20250071587A1
公开(公告)日：2025-02-27
申请号：US18722336
申请日：2022-12-13
Inventor： Jung Bin KIM , Pan Soo KIM , Joon Gyu RYU , Gyeong Rae IM
IPC: H04W24/10 , H04L27/26 , H04W72/0446
Abstract: Disclosed are a method and apparatus for a measurement operation in a communication system. The method for a terminal comprises the steps of: receiving measurement configuration information from a base station; identifying a point in time of start of a measurement gap on the basis of the measurement configuration information; identifying the length of the measurement gap on the basis of the measurement configuration information; and performing a measurement operation in the measurement gap, wherein the measurement gap is configured in units of slots, the point in time of start of the measurement gap is a start slot, and the measurement gap includes one or more slots.
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公开(公告)号：US20250031162A1
公开(公告)日：2025-01-23
申请号：US18712650
申请日：2022-11-23
Inventor： Gyeong Rae IM , Jung Bin KIM , Pan Soo KIM , Min Su SHIN , In Ki LEE , Dong Hyun JUNG , Soo Yeob JUNG , Seung Keun PARK , Joon Gyu RYU
IPC: H04W56/00 , H04W16/28 , H04W72/0457 , H04W84/06
Abstract: A method according to an embodiment of the present invention corresponds to a method for transmitting, by a gateway, a synchronization signal block (SSB) through a plurality of satellites, and may comprise the steps of: determining satellite identification SSBs for identifying a plurality of satellites, respectively; determining beam identification SSBs for identifying beams usable for the plurality of satellites, respectively; and controlling the satellite identification SSBs and the beam identification SSBs to be transmitted to the plurality of satellites, respectively, through a predetermined resource, wherein the satellite identification SSBs and each of the beam identification SSBs have different SSB indices from each other.
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公开(公告)号：US20220182193A1
公开(公告)日：2022-06-09
申请号：US17540792
申请日：2021-12-02
Inventor： Gyeong Rae IM , Pan Soo KIM , Joon Gyu RYU , Dong Hyun JUNG , Soo Yeob JUNG
Abstract: An operation method of an IoT terminal performing communications with a satellite may comprise: receiving a first signal from the satellite; determining a number of symbols constituting a preamble based on the first signal; generating a first frame including a preamble generated according to the determined number of symbols, and transmitting the generated first frame to the satellite; and generating a second frame including a preamble generated according to the determined number of symbols when a response signal to the first frame is received from the satellite, and transmitting the generated second frame to the satellite.
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Patent Agency Ranking
16.发明申请VSAT SYSTEM FOR HYBRID OPERATION OF STAR-MESH NETWORK AND METHOD FOR CONTROLLING THEREOF 审中-公开用于混合运行STAR-MESH网络的VSAT系统及其控制方法公开(公告)号：US20150207559A1
公开(公告)日：2015-07-23
申请号：US14328965
申请日：2014-07-11
Inventor： Joon Gyu RYU , Man Kyu PARK , Deock Gil OH , Nam Young KIM , Myoung Soo AHN
IPC: H04B7/155
CPC classification number: H04B7/18528
Abstract: A first terminal according to the present invention is a first terminal among a plurality of terminals which is connected to a district center network management device in a VSAT (very small aperture terminal) system, including: a communication unit which connects the first terminal to the district center network management device through a star network; and a control unit which creates SCPC call establishment request information, transmits the created SCPC call establishment request information to the district center network management device through the communication unit, and performs SCPC connection with another terminal based on SCPC call establishment information which is transmitted from the district center network management device in response to the transmitted SCPC call establishment request information when SCPC (single channel per carrier) connection is desired to be performed with another terminal among the plurality of terminals.
Abstract translation: 根据本发明的第一终端是多个终端中的第一终端，其连接到VSAT（非常小孔径终端）系统中的区域中心网络管理设备，包括：通信单元，其将第一终端连接到 区中心网络管理设备通过星形网络; 以及控制单元，其创建SCPC呼叫建立请求信息，通过通信单元将创建的SCPC呼叫建立请求信息发送到区域中心网络管理设备，并且基于从SCPC呼叫建立信息发送的SCPC呼叫建立信息，与另一终端进行SCPC连接 区域中心网络管理装置响应于所述SCPC呼叫建立请求信息，当SCPC（每个载波单个信道）连接期望与多个终端中的另一个终端执行时。
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公开(公告)号：US20130148696A1
公开(公告)日：2013-06-13
申请号：US13711538
申请日：2012-12-11
Inventor： Joon Gyu RYU , Deock Gil OH
IPC: H04B1/707
CPC classification number: H04B1/707 , H04B1/69 , H04N21/6143
Abstract: Provided is a satellite broadcasting system and method using a spread spectrum technique to improve satellite broadcasting availability in a rainy environment and to provide a satellite broadcasting N-screen service. A satellite broadcasting transmitter of the satellite broadcasting system may encode a broadcast signal into each of a high definition (HD) signal, a standard definition (SD) signal, and a low definition (LD) signal, may modulate each of the encoded HD signal and the encoded SD signal by a predetermined modulation scheme, may spread a spectrum of the encoded LD signal to generate a spread spectrum signal, may to modulate the spread spectrum signal, may combine the modulated spread spectrum signal with the modulated HD signal and the modulated SD signal to generate a combined modulated signal, and may transmit the combined modulated signal to a satellite.
Abstract translation: 提供了一种使用扩频技术来改善雨天环境中的卫星广播可用性并提供卫星广播N屏幕服务的卫星广播系统和方法。 卫星广播系统的卫星广播发射机可以将广播信号编码为高分辨率（HD）信号，标准清晰度（SD）信号和低清晰度（LD））信号中的每一个，可以调制每个编码的HD信号 并且通过预定调制方案的经编码的SD信号可以扩展编码的LD信号的频谱以生成扩展频谱信号，以便调制扩频信号，可以将调制的扩频信号与调制的HD信号和调制的 SD信号以产生组合的调制信号，并且可以将组合的调制信号发射到卫星。
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公开(公告)号：US20230336243A1
公开(公告)日：2023-10-19
申请号：US18300214
申请日：2023-04-13
Inventor： In Ki LEE , Joon Gyu RYU
CPC classification number: H04B7/18589 , H04W56/0015 , H04W84/06
Abstract: A method and an apparatus for network synchronization in a satellite communication system is provided. a satellite station receives a superframe start timing (SST) and an initial counter value from a center station, and receives traffic information sent from a terminal station at a time determined based on the SST. Then, the satellite station generates a compensation value for the SST upon receiving the traffic information, and corrects the SST in accordance with the compensation value.
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公开(公告)号：US20230289912A1
公开(公告)日：2023-09-14
申请号：US18079647
申请日：2022-12-12
Inventor： Yong Mun PARK , Tae-Gun KANG , Sang-il KIM , Seung Chul KIM , Do-Seob AHN , Joon Gyu RYU , Jeom Hun LEE
CPC classification number: G06Q50/265 , G06V20/13 , G06V10/82
Abstract: Provided is an intelligent disaster management method and an apparatus using a satellite image. The disaster management method includes receiving a satellite image to monitor a disaster, setting a location of an area for disaster monitoring and a type of disaster to be monitored and selecting at least one satellite image associated with the location of the area and the type of disaster among the received satellite images through a satellite image selection model, synthesizing the selected satellite images through a satellite image synthesis model and generating disaster image data which enables to monitor a disaster, and monitoring a disaster of the area for disaster monitoring by using the disaster image data.
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公开(公告)号：US20230137974A1
公开(公告)日：2023-05-04
申请号：US17978579
申请日：2022-11-01
Inventor： Dong Hyun JUNG , Gyeong Rae IM , Joon Gyu RYU
IPC: H04B7/185
Abstract: A satellite cluster system may comprise: at least one slave satellite; a master satellite sharing a control signal and an information signal with the at least one slave satellite through an inter-satellite link; and a terrestrial control system for adjusting positions of the master satellite and the at least one slave satellite and transmitting the control signal and the information signal to the master satellite.
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