1.
    发明专利
    未知

    公开(公告)号:DE60321797D1

    公开(公告)日:2008-08-07

    申请号:DE60321797

    申请日:2003-07-02

    Applicant: MOTOROLA INC

    Abstract: A radio communication system with adaptive interleaving selects between chip interleaving and bit interleaving depending upon the number of active code signals. A transmitted RF signal includes a coded information signal part and a control signal part that indicates a number of active code signals that have been combined to form the coded information signal part. The system is especially suited for MC-CDMA systems.

    2.
    发明专利
    未知

    公开(公告)号:BR0313264A

    公开(公告)日:2005-07-05

    申请号:BR0313264

    申请日:2003-07-02

    Applicant: MOTOROLA INC

    Abstract: A radio communication system with adaptive interleaving selects between chip interleaving and bit interleaving depending upon the number of active code signals. A transmitted RF signal includes a coded information signal part and a control signal part that indicates a number of active code signals that have been combined to form the coded information signal part. The system is especially suited for MC-CDMA systems.

    OFDM COMMUNICATION DEVICE
    5.
    发明申请
    OFDM COMMUNICATION DEVICE 审中-公开
    OFDM通信设备

    公开(公告)号:WO2004070979A3

    公开(公告)日:2004-10-21

    申请号:PCT/US2004002614

    申请日:2004-01-30

    CPC classification number: H04L27/2663 H04L27/2613

    Abstract: To provide high-quality communication even when the power for synchronization preamble is reduced in an OFDM communication system, an OFDM communication transmitter obtains a zero amplitude reduced preamble signal by passing a specified synchronization preamble through an ideal low-pass filter (10) to reduce a signal component near zero amplitude within a time domain, and time-multiplexes (11) the obtained zero amplitude reduced preamble signal with transmit data to generate an OFDM transmit signal. A receiver section (20) of the OFDM communication system determines the cross correlation (19) between a receive signal and a specified synchronization preamble (17), which is patterned the same as the counterpart in a transmitter section of the OFDM communication system, and detects a synchronization position in accordance with the determined cross correlation.

    Abstract translation: 为了在OFDM通信系统中减少用于同步前同步码的功率的同时提供高质量的通信,OFDM通信发射机通过使指定的同步前同步码通过理想的低通滤波器(10)来获得零幅度减小的前导信号,以减少 在时域内接近零幅度的信号分量,并且利用发射数据对获得的零幅度减小的前导信号进行时间复用(11)以产生OFDM发射信号。 OFDM通信系统的接收机部分(20)确定接收信号和与OFDM通信系统的发射机部分中的配对相同的指定同步前同步码(17)之间的互相关(19),以及 根据确定的互相关来检测同步位置。

    RADIO COMMUNICATION SYSTEM WITH ADAPTIVE INTERLEAVER
    7.
    发明公开
    RADIO COMMUNICATION SYSTEM WITH ADAPTIVE INTERLEAVER 有权
    具有自适应交错FUNKKOMMUNIKATIONSSSTEM

    公开(公告)号:EP1530838A4

    公开(公告)日:2006-11-02

    申请号:EP03784753

    申请日:2003-07-02

    Applicant: MOTOROLA INC

    CPC classification number: H04B1/7103

    Abstract: A radio communication system (12) with adaptive interleaving (18, 20 or 24) selects between chip interleaving (24) and bit interleaving (18) depending upon the number of active code signals (14). A transmitted RF signal (26) includes a coded information signal part and a control signal part that indicates a number of active code signals that have been combined to form the coded information signal part. The system (12) is especially suited for MC-CDMA systems.

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