ORTHOGONAL COMPLEX SPREADING METHOD FOR MULTIPLEX CHANNEL

    公开(公告)号:JPH11186989A

    公开(公告)日:1999-07-09

    申请号:JP28158098

    申请日:1998-10-02

    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.

    2.
    发明专利
    未知

    公开(公告)号:DE69840883D1

    公开(公告)日:2009-07-16

    申请号:DE69840883

    申请日:1998-10-02

    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.

    ORTHOGONAL COMPLEX SPREADING METHOD FOR MULTICHANNEL AND APPARATUS THEREOF

    公开(公告)号:HK1108982A1

    公开(公告)日:2008-05-23

    申请号:HK08101487

    申请日:2008-02-06

    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.

    4.
    发明专利
    未知

    公开(公告)号:DE69840900D1

    公开(公告)日:2009-07-23

    申请号:DE69840900

    申请日:1998-10-02

    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.

    5.
    发明专利
    未知

    公开(公告)号:DE69838242T2

    公开(公告)日:2008-02-14

    申请号:DE69838242

    申请日:1998-10-02

    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.

    ORTHOGONAL COMPLEX SPREADING METHOD FOR MULTICHANNEL AND APPARATUS THEREOF

    公开(公告)号:HK1108981A1

    公开(公告)日:2008-05-23

    申请号:HK08101486

    申请日:2008-02-06

    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.

    ORTHOGONAL COMPLEX SPREADING METHOD FOR MULTICHANNEL AND APPARATUS THEREOF

    公开(公告)号:HK1108236A1

    公开(公告)日:2008-05-02

    申请号:HK08101565

    申请日:2008-02-13

    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.

    8.
    发明专利
    未知

    公开(公告)号:DE69838242D1

    公开(公告)日:2007-09-27

    申请号:DE69838242

    申请日:1998-10-02

    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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