公开(公告)号：WO2009075479A3

公开(公告)日：2009-08-13

申请号：PCT/KR2008006580

申请日：2008-11-07

Applicant: KOREA ELECTRONICS TELECOMM ,  KANG YEON SU ,  KANG KUN SEOK ,  AHN DO-SEOB ,  LEE HO JIN

Inventor： KANG YEON SU ,  KANG KUN SEOK ,  AHN DO-SEOB ,  LEE HO JIN

IPC: H04B7/26 ,  H04B17/40

CPC classification number: H04B7/18539 ,  H04B7/2606 ,  H04W72/085 ,  H04W84/047 ,  H04W88/04

Abstract: The present invention relates to a system and method of reusing radio resources capable of improving radio resource efficiency. According to an embodiment of the present invention, in a communication system including a repeater that retransmits signals transmitted from a satellite to user terminals, it is possible to reuse some of the radio resources used in a wide area coverage, such as the satellite, in a repeater coverage. Therefore, it is possible to ensure radio resources such that repeater data can be transmitted to user terminals without additional radio resources.

Abstract translation: 本发明涉及能够提高无线资源效率的重用无线资源的系统和方法。 根据本发明的实施例，在包括转发器的通信系统中，该转发器将从卫星发送的信号转发到用户终端，可以重新使用广域覆盖中使用的一些无线电资源，例如卫星， 中继器覆盖。 因此，可以确保无线电资源，使得可以在不需要额外无线电资源的情况下将中继器数据发送到用户终端。

公开(公告)号：KR20090062904A

公开(公告)日：2009-06-17

申请号：KR20070130388

申请日：2007-12-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KANG YEON SU ,  KANG KUN SEOK ,  AHN DO SEOB ,  LEE HO JIN

IPC: H04B7/185

CPC classification number: H04L1/0668

Abstract: A method for transmitting a signal in a satellite communication system with a terrestrial assistant device is provided to apply space-time coding techniques, thereby improving receiving signal quality of an area where a signal of satellite or terrestrial assistant devices can be received. A core network produces the first symbol index and the second symbol index about the first transmission signal and the second transmission signal(S100). The core network generates the first and second transmission data symbols which are alpha and beta(S120). A space-time code is generated based on the first and second symbol indexes and the first and second transmission data symbols(S130). After the space-time code is transmitted to a satellite, the code is transmitted to a terminal through a terrestrial assistant device or transmitted to the terminal from the satellite.

Abstract translation: 提供了一种用于在具有地面辅助设备的卫星通信系统中发送信号的方法以应用空时编码技术，从而提高可以接收卫星或地面辅助设备的信号的区域的接收信号质量。 核心网络产生关于第一传输信号和第二传输信号的第一符号索引和第二符号索引（S100）。 核心网络生成α和β的第一和第二传输数据符号（S120）。 基于第一和第二符号索引以及第一和第二传输数据符号产生时空代码（S130）。 在将空时代码发送到卫星之后，通过地面辅助设备将码发送到终端，或者从卫星发送到终端。