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    Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques
    1.
    发明授权
    Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques 有权
    用于利用发射分集技术从天线阵列发送和接收信号的方法和系统

    公开(公告)号：US06317411B1

    公开(公告)日：2001-11-13

    申请号：US09253786

    申请日：1999-02-22

    申请人： Nicholas William Whinnett ,  Oscar Clop ,  Francesc Boixadera ,  Kiran Kumar Kuchi ,  Kamyar Rohani

    发明人： Nicholas William Whinnett ,  Oscar Clop ,  Francesc Boixadera ,  Kiran Kumar Kuchi ,  Kamyar Rohani

    IPC分类号： H04L2726

    CPC分类号： H04B7/0604 ,  H04B7/0669 ,  H04B7/0678 ,  H04L1/0618

    摘要： In a method for wireless data communication between a base station and a subscriber unit in a wireless communication system, groups of symbols of an input data stream are commutated to produce a plurality of commutated data streams. The plurality of commutated data streams are then transformed to produce a plurality of transformed data streams. Next, each transformed data stream is spread with a selected one of a plurality of spreading codes to produce a plurality of antenna signals. Finally, each of the plurality of antenna signals is transmitted using a selected one of a plurality of spaced apart antennas, wherein the plurality of spaced apart antennas are spaced apart to provide transmit diversity. In one embodiment, the transform is a space-time transform.

    摘要翻译： 在无线通信系统中的基站与用户单元之间的无线数据通信的方法中，输入数据流的符号组被换向以产生多个换向数据流。 然后对多个换向数据流进行变换以产生多个经变换的数据流。 接下来，每个变换的数据流以多个扩展码中的选定的一个扩展，以产生多个天线信号。 最后，多个天线信号中的每一个使用多个间隔开的天线中选定的天线发送，其中多个间隔开的天线间隔开以提供发射分集。 在一个实施例中，变换是时空变换。

    Phase alignment transmit diversity system for radio communications systems
    2.
    发明授权
    Phase alignment transmit diversity system for radio communications systems 有权
    无线电通信系统的相位对准发射分集系统

    公开(公告)号：US06763225B1

    公开(公告)日：2004-07-13

    申请号：US09510318

    申请日：2000-02-22

    申请人： Yann Farmine ,  Oscar Clop ,  Nicholas Whinnett

    发明人： Yann Farmine ,  Oscar Clop ,  Nicholas Whinnett

    IPC分类号： H04B1700

    CPC分类号： H04B7/0615

    摘要： A base station (1) in a radio communication system is provided with an antenna array 2, 3 for communication with a plurality of mobile stations (4, 5). The transmissions of the base station (1) are optimised by adjusting the phase between the signals transmitted by each antenna (2, 3) so that the product of the propagation channel estimates is maximised. The invention has particular application to CDMA-TDD modes of operation where it has been shown to perform favourably in comparison with known transmit diversity techniques. A further advantage is that it does not require added complexity in the channel estimation at each mobile station (4, 5).

    摘要翻译： 无线通信系统中的基站（1）设置有用于与多个移动站（4,5）通信的天线阵列2,3。 通过调整由每个天线（2,3）发送的信号之间的相位，使得传播信道估计的乘积最大化来优化基站（1）的传输。 本发明特别适用于CDMA-TDD操作模式，其中与已知的发射分集技术相比，已经显示出有利地执行。 另一个优点是在每个移动台（4,5）处的信道估计不需要附加的复杂性。