公开(公告)号：US08982988B2

公开(公告)日：2015-03-17

申请号：US13866174

申请日：2013-04-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyuk Song ,  Jong Soo Lim

IPC: H04L27/00 ,  H04L27/26

CPC classification number: H04L27/2634 ,  H04L27/2614

Abstract: A method and apparatus for transmitting an orthogonal frequency division multiplexing (OFDM) signal including converting a distribution of a signal in which inverse Fourier transform is performed in an OFDM system and a method of receiving an OFDM signal including expanding a received signal are provided, and by changing a magnitude distribution of a signal that is output from an OFDM modulator to a bimodal Gaussian distribution, an influence of noise in a receiving terminal can be reduced, and by limiting a signal that is output from an OFDM modulator to an appropriate magnitude, a phase in the receiving terminal can be prevented being wrongly demodulated.

Abstract translation: 提供一种用于发送正交频分复用（OFDM）信号的方法和装置，包括在OFDM系统中进行逆傅立叶变换的信号的分布，以及接收包括扩展接收信号的OFDM信号的方法，以及 通过将从OFDM调制器输出的信号的幅度分布改变为双模高斯分布，可以减少接收终端中的噪声的影响，并且通过将从OFDM调制器输出的信号限制到适当的大小， 可以防止接收终端中的相位被错误地解调。

公开(公告)号：US20140294121A1

公开(公告)日：2014-10-02

申请号：US14354333

申请日：2012-10-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Soo Lim ,  Sun Hyoung Kwon ,  Heung Mook Kim ,  Namho Hur

IPC: H04L27/18 ,  H04L27/26

CPC classification number: H04L27/2649 ,  H03C3/40 ,  H04L27/0008 ,  H04L27/2614 ,  H04L27/2634

Abstract: Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.

Abstract translation: 基于符号映射对第一输入信号和第二输入信号执行调制。 选择性地调整第一和第二调制输入信号的相位值。 对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。 角度调制的第一和第二输入信号被发送。