公开(公告)号：US20140096153A1

公开(公告)日：2014-04-03

申请号：US13845241

申请日：2013-03-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Do Huy WANG

IPC: H04N21/61

CPC classification number: H04N21/6193 ,  H04N21/6143

Abstract: A satellite communication system and method based on a digital video broadcasting-return channel via satellite (DVB-RCS) are provided. The satellite communication system may include a central station, and at least one very small aperture terminal (VSAT) including a first VSAT and a second VSAT. When a logon request is received from the second VSAT, the central station may determine whether the first VSAT is normally operated. When the first VSAT is determined to be abnormally operated, the central station may allow the second VSAT to log onto the central station.

Abstract translation: 提供了一种基于卫星数字视频广播返回信道（DVB-RCS）的卫星通信系统和方法。 卫星通信系统可以包括中央站以及包括第一VSAT和第二VSAT的至少一个非常小的孔径终端（VSAT）。 当从第二VSAT接收到登录请求时，中央站可以确定第一VSAT是否正常操作。 当第一VSAT被确定为异常操作时，中心站可以允许第二VSAT登录到中心站。

公开(公告)号：US20140056335A1

公开(公告)日：2014-02-27

申请号：US13972288

申请日：2013-08-21

Applicant: Electronics and Telecommunications Research Institute

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。