公开(公告)号：DE69840900D1

公开(公告)日：2009-07-23

申请号：DE69840900

申请日：1998-10-02

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG CHANG ,  HAN KI CHUL ,  SHIM JAE RYONG ,  KIM JUNG IM ,  KIM TAE JOONG

IPC: H04J11/00 ,  H04B7/26 ,  H04J3/14 ,  H04J13/00 ,  H04J13/10

Abstract: An orthogonal complex spreading method for multiple data inputs, each of the data inputs being allocated to either a first group or a second group, comprising steps of: generating first outputs (600) by multiplying each of data inputs in the first group (X 11 ... X n1 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a first output signal (810) by summing the first outputs; generating second outputs (700) by multiplying each of data inputs in the second group (X 12 ... X n2 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a second output signal (820) by summing the second outputs; receiving the first and second output signals in a complex form (900) and complex-multiplying the first and the second output signals by SC(OS 3 +jP-OS 4 ) (900, 300), wherein SC is a spreading code, OS 3 and OS 4 are orthogonal sequences, and P is a predetermined sequence.

公开(公告)号：DE69838242T2

公开(公告)日：2008-02-14

申请号：DE69838242

申请日：1998-10-02

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG CHANG ,  HAN KI CHUL ,  SHIM JAE RYONG ,  KIM JUNG IM ,  KIM TAE JOONG

IPC: H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10

Abstract: An orthogonal complex spreading method for multiple data inputs, each of the data inputs being allocated to either a first group or a second group, comprising steps of: generating first outputs (600) by multiplying each of data inputs in the first group (X 11 ... X n1 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a first output signal (810) by summing the first outputs; generating second outputs (700) by multiplying each of data inputs in the second group (X 12 ... X n2 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a second output signal (820) by summing the second outputs; receiving the first and second output signals in a complex form (900) and complex-multiplying the first and the second output signals by SC(OS 3 +jP-OS 4 ) (900, 300), wherein SC is a spreading code, OS 3 and OS 4 are orthogonal sequences, and P is a predetermined sequence.

公开(公告)号：HK1108238A1

公开(公告)日：2008-05-02

申请号：HK08101592

申请日：2008-02-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG CHANG ,  HAN KI CHUL ,  SHIM JAE RYONG ,  KIM JUNG IM ,  KIM TAE JOONG

IPC: H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10

Abstract: An orthogonal complex spreading method for multiple data inputs, each of the data inputs being allocated to either a first group or a second group, comprising steps of: generating first outputs (600) by multiplying each of data inputs in the first group (X 11 ... X n1 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a first output signal (810) by summing the first outputs; generating second outputs (700) by multiplying each of data inputs in the second group (X 12 ... X n2 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a second output signal (820) by summing the second outputs; receiving the first and second output signals in a complex form (900) and complex-multiplying the first and the second output signals by SC(OS 3 +jP-OS 4 ) (900, 300), wherein SC is a spreading code, OS 3 and OS 4 are orthogonal sequences, and P is a predetermined sequence.

公开(公告)号：HK1108237A1

公开(公告)日：2008-05-02

申请号：HK08101591

申请日：2008-02-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SHIM JAE RYONG ,  HAN KI CHUL ,  BANG SEUNG CHANG ,  KIM JUNG IM ,  KIM TAE JOONG

IPC: H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10

Abstract: An orthogonal complex spreading method for multiple data inputs, each of the data inputs being allocated to either a first group or a second group, comprising steps of: generating first outputs (600) by multiplying each of data inputs in the first group (X 11 ... X n1 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a first output signal (810) by summing the first outputs; generating second outputs (700) by multiplying each of data inputs in the second group (X 12 ... X n2 ) by a corresponding orthogonal sequence and a corresponding gain, respectively; generating a second output signal (820) by summing the second outputs; receiving the first and second output signals in a complex form (900) and complex-multiplying the first and the second output signals by SC(OS 3 +jP-OS 4 ) (900, 300), wherein SC is a spreading code, OS 3 and OS 4 are orthogonal sequences, and P is a predetermined sequence.

公开(公告)号：FR2794314A1

公开(公告)日：2000-12-01

申请号：FR0007060

申请日：2000-05-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG CHAN ,  KIM TAE JOONG ,  KIM JAE HEUNG ,  KIM JUNG IM ,  CHAE JONG SUK ,  LEE HYUCK JAE ,  SHIM JAE RYONG ,  LEE NARM HEE

IPC: H04L27/20 ,  H04B1/707 ,  H04J11/00 ,  H04J13/12 ,  H04J13/20 ,  H04J13/02 ,  H04Q7/32 ,  H04Q7/38

Abstract: In-phase (I) and quadrature (Q) channels in a mobile unit are coded (13) producing digital word and command elements. Coded signals are passed to a code production unit, which forms spread spectrum codes attributable to the I and Q channels. The digital word elements, command elements and spread spectrum codes correspond to points in the same position and symmetrical with respect to a zero point on the phase domain. The elements are applied to a spread spectrum generator producing the signal modulation.