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公开(公告)号：JPH11186989A
公开(公告)日：1999-07-09
申请号：JP28158098
申请日：1998-10-02
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG CHANG , SHIM JAE RYONG , HAN KI CHUL , KIM JUNG IM , KIM TAE JOONG
Abstract: PROBLEM TO BE SOLVED: To provide an orthogonal complex spreading method and its system for a multiplex channel by which a problem of unbalanced power between in-phase channels and orthogonal phase channels is solved, and which has an advantage over complex spreading systems proposed by CDMA-ONE in the U.S. and by W-CDMA in Japan and Europe, from the standpoint of power efficiency. SOLUTION: 'Orthogonal complex spread miodulation' is called an OCQPSK (orthogonal complex QPSK). Data for a multiplex channel and subject to gain and orthogonal Hadamard sequence for each channel, two channel data multiplied with the gain and the orthogonal Hadamard sequence are summed in a complex form, a complex multiplier applies complex multiplication to the value summed in the complex form and the outer orthogonal Hadamard sequence in a complex form, and provides outputs of in-phase information and orthogonal phase information. The in- phase information outputted from lots of blocks is summed to the in-phase information and the orthogonal phase information is summed to the orthogonal phase information, and the result is spread by using a spread code in the orthogonal complex spread method for the multiplex channel.
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公开(公告)号：DE69840883D1
公开(公告)日：2009-07-16
申请号：DE69840883
申请日：1998-10-02
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： SHIM JAE RYONG , HAN KI CHUL , BANG SEUNG CHANG , KIM JUNG IM , KIM TAE JOONG
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.
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公开(公告)号：HK1108982A1
公开(公告)日：2008-05-23
申请号：HK08101487
申请日：2008-02-06
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG CHANG , HAN KI CHUL , SHIM JAE RYONG , KIM JUNG IM , KIM TAE JOONG
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.
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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
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.
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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
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.
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Patent Agency Ranking
公开(公告)号：HK1108981A1
公开(公告)日：2008-05-23
申请号：HK08101486
申请日：2008-02-06
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG CHANG , HAN KI CHUL , SHIM JAE RYONG , KIM JUNG IM , KIM TAE JOONG
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.
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公开(公告)号：HK1108236A1
公开(公告)日：2008-05-02
申请号：HK08101565
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
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.
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公开(公告)号：DE69838242D1
公开(公告)日：2007-09-27
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
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.
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公开(公告)号：HK1147361A1
公开(公告)日：2011-08-05
申请号：HK11101231
申请日：2008-02-06
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG CHANG , HAN KI CHUL , SHIM JAE RYONG , KIM JUNG IM , KIM TAE JOONG
IPC: H04J20060101
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公开(公告)号：DE10075378T1
公开(公告)日：2011-04-14
申请号：DE10075378
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
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