利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.009 秒)

    A SELF & MINUS;ADAPTING WEIGHTED SPACE TIME TRANSMITTING DIVERSITY METHOD AND SYSTEM THEREOF
    2.
    发明公开
    A SELF & MINUS;ADAPTING WEIGHTED SPACE TIME TRANSMITTING DIVERSITY METHOD AND SYSTEM THEREOF 有权
    黛比斯顿大学学士学位论文 - 多伦多大学 - 维多利亚系统大学

    公开(公告)号：EP1489772A1

    公开(公告)日：2004-12-22

    申请号：EP02719606.2

    申请日：2002-03-22

    申请人： Huawei Technologies Co., Ltd.

    发明人： CAO, Aijun, Huawei Service Centre Building ,  POPOVIC, Branislav, M.

    IPC分类号： H04L1/06 ,  H04B7/02

    CPC分类号： H04L1/0001 ,  H04B7/0669 ,  H04B7/0673 ,  H04L1/0618 ,  H04W52/24 ,  H04W52/30

    摘要： A method of adaptive weighting space-time transmit diversity and system thereof. The method comprises: symbols to be transmitted at a transmitting end being output after being space-time encoded according to certain regulation, and the current transmission powers of the two antennae being real-timely adjusted according to the given transmission power weight values; after the transmission powers are determined, the space-time encoded output signals being sent out at two independent antennas by transmitting antenna array in terms of the current transmission power; the fading characters of two wireless channels being estimated by the receiver at a receiving end according to the present received signals and then fed back to the transmitting end; the transmitting end receiving and obtaining the fading amplitude characters of two wireless channels through feedback channel, calculating new adaptive weight values of transmission powers, and adjusting transmission powers according to these weight values. The present invention also discloses a system for implementing the above method of adaptive weighting Space-time Transmit Diversity. In term of the method and structure, the transmission powers can be dynamically adjusted in adaptive weighting manner, in order to boost system performance gain.

    摘要翻译： 一种自适应加权时空发射分集的方法及其系统。 该方法包括：在发送端发送的符号在按照规定进行空间编码后输出，根据给定的发送功率权重值实时调整两个天线的当前发送功率; 在确定发送功率之后，通过根据当前发送功率发送天线阵列，在两个独立天线发送空时编码的输出信号; 两个无线信道的衰落字符由接收机根据本接收信号在接收端估计，然后反馈给发送端; 发送端通过反馈信道接收和获取两个无线信道的衰落幅度字符，计算发送功率的新自适应权重值，并根据这些权重值调整发送功率。 本发明还公开了一种用于实现上述自适应加权时空发射分集方法的系统。 在方法和结构方面，传输功率可以以自适应加权方式动态调整，以提高系统性能增益。