TRANSMISSION POWER DISTRIBUTION FOR MIMO COMMUNICATIONS WHEN MULTIPLICATIVE NOISE LIMITED
    2.
    发明公开
    TRANSMISSION POWER DISTRIBUTION FOR MIMO COMMUNICATIONS WHEN MULTIPLICATIVE NOISE LIMITED 有权
    SENDELEISTUNGSVERTEILUNGFÜRMIMO-KOMMUNIKATION BEI BEGRENZTEM MULTIPLIKATIVEM RAUSCHEN

    公开(公告)号:EP2932621A1

    公开(公告)日:2015-10-21

    申请号:EP13759513.8

    申请日:2013-09-07

    摘要: Throughput conditions limited by multiplicative noise may be improved by distributing a transmission power across MIMO data streams communicated between MIMO communication nodes. In particular, the transmission power is distributed based on knowledge at the transmitter of the MIMO channel to decrease the transmission power allocated to one or more of the data streams associated with a dominant signal path relative to the transmission power allocated to one or more data streams associated with a weaker signal path to increase at least one of a quality and a throughput condition of the MIMO channel.

    摘要翻译: 可以通过在MIMO通信节点之间传送的MIMO数据流之间分配发射功率来改善由乘法噪声限制的吞吐量条件。 具体地,基于MIMO信道的发射机处的知识来分发发射功率,以相对于分配给一个或多个数据流的发射功率降低分配给与主要信号路径相关联的一个或多个数据流的发射功率 与较弱的信号路径相关联以增加MIMO信道的质量和吞吐量条件中的至少一个。

    A METHOD AND APPARATUS FOR COMPENSATING FOR PROCESSING TIMING MISALIGNMENT IN A COMMUNICATION RECEIVER
    5.
    发明公开
    A METHOD AND APPARATUS FOR COMPENSATING FOR PROCESSING TIMING MISALIGNMENT IN A COMMUNICATION RECEIVER 有权
    方法和装置处理时钟错位在通信接收器中补偿

    公开(公告)号:EP2272175A1

    公开(公告)日:2011-01-12

    申请号:EP09737981.2

    申请日:2009-04-08

    IPC分类号: H04B1/707

    摘要: According to the teachings presented herein, a wireless communication apparatus compensates for timing misalignment in its received signal processing. In at least one embodiment, the apparatus estimates a set of path delays for a received signal and sets processing delays on the estimated path delays. The apparatus jointly hypothesizes combinations of fractional timing offsets for two or more paths, and computes a decision metric for each joint hypothesis that indicates the accuracy of the joint hypothesis. As non-limiting examples, the decision metric may be a signal quality metric, or a distance metric (such as between a measured net channel response and an effective net channel response reconstructed as a function of the combination of fractional timing offsets included in the joint hypothesis). The apparatus evaluates the decision metrics to identify a best estimate of timing misalignment, and correspondingly compensates coherent processing of the received signal.