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公开(公告)号:US20190280731A1
公开(公告)日:2019-09-12
申请号:US16424425
申请日:2019-05-28
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.