公开(公告)号：KR20090063755A

公开(公告)日：2009-06-18

申请号：KR20070131237

申请日：2007-12-14

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YOON CHAN HO ,  LEE IL GU ,  KANG HUN SIK ,  OH JONG EE ,  SONG YOO SEUNG ,  LEE SOK KYU ,  BANG SEUNG CHAN

IPC: H04L27/26 ,  H04B7/02 ,  H04B7/04

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04L1/0003 ,  H04L27/2646

Abstract: A variable transmission method according to a subcarrier in a multiple input multiple output is provided to determine a subcarrier modulation method flexibly in a wireless channel environment by applying a modulation method to each subcarrier by using a CN(Condition number) that is channel information. The CN that is the channel information is calculated(401). A subcarrier modulation method is determined according to the CN value(402). The CN is obtained by changing the roles of a transmitting terminal and a receiving terminal. The CN is a value obtained by dividing the maximum value of a singular value of a diagonal matrix by the minimum value.

Abstract translation: 提供了一种根据多输入多输出中的副载波的可变传输方法，通过使用作为信道信息的CN（条件号）对每个子载波应用调制方法，在无线信道环境中灵活地确定副载波调制方法。 计算作为频道信息的CN（401）。 根据CN值（402）确定副载波调制方式。 通过改变发送终端和接收终端的角色来获得CN。 CN是通过将对角矩阵的奇异值的最大值除以最小值而获得的值。