Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communicating system
    1.
    发明授权
    Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communicating system 有权
    通过在移动通信系统中采用正交可变扩频因子(OVSF)码来调制数据消息的装置和方法

    公开(公告)号:US08121173B2

    公开(公告)日:2012-02-21

    申请号:US12259072

    申请日:2008-10-27

    IPC分类号: H04B1/707

    摘要: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal. The method is capable of improving a power efficiency of a mobile station by reducing a peak-to-average power ratio in a mobile communication system.

    摘要翻译: 一种用于在移动站中将源数据转换为具有多对同相(I)和正交相位(Q)数据的信道调制信号的方法,其中移动站使用至少一个信道,包括步骤 :a)对源数据进行编码以生成至少一个数据部分和控制部分; b)产生要分配给该信道的至少一个扩展码,其中基于数据部分和控制部分的数据速率选择每个扩展码,并且选择扩展码,使得两个连续的I和 Q数据对应于位于同一点上的两个点或相对于相位域上的零点对称的点; 以及c)通过使用扩展码扩展控制部分和数据部分,从而产生信道调制信号。 该方法能够通过降低移动通信系统中的峰均功率比来提高移动台的功率效率。

    Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system
    2.
    发明授权
    Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system 有权
    通过在移动通信系统中采用正交可变扩频因子(OVSF)码来调制数据消息的装置和方法

    公开(公告)号:US08090003B2

    公开(公告)日:2012-01-03

    申请号:US12508354

    申请日:2009-07-23

    IPC分类号: H04B1/707

    摘要: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal. The method is capable of improving a power efficiency of a mobile station by reducing a peak-to-average power ratio in a mobile communication system.

    摘要翻译: 一种用于在移动站中将源数据转换为具有多对同相(I)和正交相位(Q)数据的信道调制信号的方法,其中移动站使用至少一个信道,包括步骤 :a)对源数据进行编码以生成至少一个数据部分和控制部分; b)产生要分配给该信道的至少一个扩展码,其中基于数据部分和控制部分的数据速率选择每个扩展码,并且选择扩展码,使得两个连续的I和 Q数据对应于位于同一点上的两个点或相对于相位域上的零点对称的点; 以及c)通过使用扩展码扩展控制部分和数据部分,从而产生信道调制信号。 该方法能够通过降低移动通信系统中的峰均功率比来提高移动台的功率效率。