公开(公告)号：US20190280731A1

公开(公告)日：2019-09-12

申请号：US16424425

申请日：2019-05-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Chang BANG ,  Tae Joong KIM ,  Jae Heung KIM ,  Jung Im KIM ,  Jong Suk CHAE ,  Hyuck Jae LEE ,  Jae Ryong SHIM ,  Narm Hee LEE

IPC: H04B1/7073 ,  H04J13/20 ,  H04J13/10 ,  H04J13/00

Abstract: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.