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    • 5. 发明申请
    • CHANNEL INFORMATION FEEDBACK METHOD AND WIRELESS COMMUNICATION DEVICE USING THE SAME
    • 信道反馈方法和无线通信装置
    • US20130163645A1
    • 2013-06-27
    • US13338207
    • 2011-12-27
    • Ping-Heng KuoHsiang-Tsung KungPang-An Ting
    • Ping-Heng KuoHsiang-Tsung KungPang-An Ting
    • H04B7/02H04B1/38H04B17/00
    • H04B7/0478H04B7/0617H04B7/0663H04L25/03949
    • A channel information feedback method for multi-antenna system, and a wireless communication device using the same method are provided. The proposed method could reduce feedback overhead for multiple-input multiple-output (MIMO) wireless channel information, and is based on compressive sensing technique. Prior to sending back channel information, a receiver estimates the channel and multiplies the vectorized channel with a random matrix to generate compressed feedback content. Upon receiving the compressed feedback content at a transmitter, the channel information could be restored with signal recovery algorithms of compressive sensing technique. In the other embodiment, the proposed method further adaptively adjusts compression ratio of the compressed feedback content in accordance to the prevailing channel quality. Further, for slow-varying MIMO channels, there is proposed another channel information feedback method which switches between a fixed spasifying-basis and a signal-dependent sparsifying-basis.
    • 提供了一种用于多天线系统的信道信息反馈方法和使用相同方法的无线通信装置。 所提出的方法可以减少多输入多输出(MIMO)无线信道信息的反馈开销,并且基于压缩感测技术。 在发送信道信息之前,接收机估计信道并将矢量化信道与随机矩阵相乘以产生压缩反馈内容。 一旦在发射机处接收到压缩的反馈内容,可以利用压缩感测技术的信号恢复算法恢复信道信息。 在另一实施例中,所提出的方法进一步根据主流信道质量自适应地调整压缩反馈内容的压缩比。 此外,对于慢速变化的MIMO信道,提出了另一种信道信息反馈方法,其基于固定基于扩频的信号和基于信号的稀疏化。
    • 9. 发明授权
    • Communication methods and systems having permutation schemes
    • 具有置换方案的通信方法和系统
    • US08239710B2
    • 2012-08-07
    • US12503584
    • 2009-07-15
    • Chia-Lung TsaiYu-Tao HsiehJen-Yuan HsuPang-An Ting
    • Chia-Lung TsaiYu-Tao HsiehJen-Yuan HsuPang-An Ting
    • G06F11/00
    • H04K1/06H04L1/0071H04L5/0007H04L5/0044
    • A wireless communication method implemented in a communication system may include receiving a data sequence to be permuted, and obtaining information associated with the data sequence to be permuted, the information containing at least a length of the data sequence and a sampling spacing for permuting the data sequence. The method may also include identifying a first portion of the data sequence having a first number of adjacent data items, and a second portion of the data sequence having a second number of adjacent data items. The method may also include accessing the first number of data items from the first portion at the sampling spacing, and placing the accessed first number of data items into a predetermined number of sub-blocks included within a permuted data sequence to be generated based on the received data sequence. The method may further include inserting each of the second number of data items into an end position of one of the sub-blocks within the permuted data sequence, and outputting the permuted data sequence.
    • 在通信系统中实现的无线通信方法可以包括接收要被置换的数据序列,以及获得与要被置换的数据序列相关联的信息,所述信息至少包含数据序列的长度和用于置换数据的采样间隔 序列。 该方法还可以包括识别具有第一数量的相邻数据项的数据序列的第一部分,以及具有第二数量的相邻数据项的数据序列的第二部分。 该方法还可以包括以采样间隔从第一部分访问第一数量的数据项,以及将所访问的第一数量的数据项放入包括在经置换的数据序列内的预定数量的子块中,以基于 接收数据序列。 该方法还可以包括将第二数量的数据项中的每一个插入置换的数据序列中的一个子块的结束位置,并输出置换的数据序列。