公开(公告)号：US20030224822A1

公开(公告)日：2003-12-04

申请号：US10391023

申请日：2003-03-19

Applicant: Korea Electronics Technology Institute

Inventor： Cheol Hee Park ,  Min-Chul Ju ,  Dae-Ki Hong ,  Sung-Jin Kang ,  Jin-Woong Cho

IPC: H04B001/38

CPC classification number: H04J13/004 ,  H04B1/04 ,  H04B1/707 ,  H04B2201/70706

Abstract: An apparatus for transmitting data in a wireless communication system is disclosed. An apparatus for transmitting data in a wireless communication system according to the present invention includes a serial to parallel converter operable to transform serial data into parallel data; a summer operable to combine the parallel data after multiplying them by orthogonal code; a level clipper operable to remove a portion of the summed signal above and below a desired threshold range; and a quadrature phase shift keying(QPSK) modulator operable to change the phase of the clipped signal and to transfer the modulated signal therefrom. Thus, the present invention can embody high-speed data transfer rate in such a simple structure by combining a VSG method with an MC method to clip multi-level signals from the MC method and to maintain orthogonality of MC required in the VSG method.

Abstract translation: 公开了一种在无线通信系统中发送数据的装置。 根据本发明的用于在无线通信系统中发送数据的装置包括串行到并行转换器，其可操作以将串行数据转换为并行数据; 一个可以将并行数据乘以正交码的算术运算结果; 电平限幅器，其可操作以去除在期望阈值范围之上和之下的所述相加信号的一部分; 以及正交相移键控（QPSK）调制器，其可操作以改变限幅信号的相位并从其传送调制信号。 因此，本发明可以通过组合VSG方法与MC方法来以MC方法来克服多级信号并维持VSG方法所需的MC的正交性，从而以这种简单的结构体现高速数据传输速率。