公开(公告)号：JPH10336074A

公开(公告)日：1998-12-18

申请号：JP6333098

申请日：1998-03-13

Applicant: KOREA TELECOMMUN

Inventor： ROH JUNE CHUL ,  CHOI YANG HO ,  PYO HYUN MYUNG

IPC: H04B1/707 ,  H04B7/24 ,  H04B7/26 ,  H04J11/00 ,  H04J13/16 ,  H04W28/18

Abstract: PROBLEM TO BE SOLVED: To easily house user information of variable rates and to reduce interference concerning a specific rate by performing diffusion by a long pseudo noise(PN) code with the same code offset and performing diffusion by a long PN code with mutually different code offsets depending on the velocity of a digital bit. SOLUTION: When a value obtained by squaring a digital bit velocity and the length of an orthogonal code is equal to a chip velocity, after performing diffusion by the orthogonal code by a group of orthogonal diffusing devices 31, this output is switched to a group of long PN diffusing devices 33. The group 33 performs diffusion by long PN codes with the same code offset. When the value obtained by squaring the digital bit velocity and the length of the orthogonal code is not equal to the chip velocity, traffic data is switched to the group 33. The group 33 executes diffusion by the long PN code with the mutually different code offset.