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    Adaptive coding and modulation
    3.
    发明申请
    Adaptive coding and modulation 有权

    公开(公告)号：US20060182026A1

    公开(公告)日：2006-08-17

    申请号：US11403353

    申请日：2006-04-13

    申请人： Peiying Zhu ,  Wen Tong ,  Claude Royer

    发明人： Peiying Zhu ,  Wen Tong ,  Claude Royer

    IPC分类号： H04L12/26

    CPC分类号： H04L1/1887 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0068 ,  H04L1/1854 ,  H04L27/0012

    摘要： The present invention provides a unique feedback system in a wireless communication system wherein the transmission channel is always overloaded with data, which is configured and modulated at a select order of modulation. Based on the channel conditions, only a portion of the data can be successfully received. As such, the receiver will attempt to receive the data using demodulation techniques corresponding to the different levels of modulation used to encode the data transmitted. The receiver will determine the data that is recovered, or the highest order of modulation at which the data is recovered, and provide feedback to the transmitter. The transmitter will then retransmit the data that was not properly received. By overloading the channel at all times, the maximum amount of data capable of being transmitted over the channel is optimized without requiring or heavily relying on the receiver feeding back channel condition information to the transmitter.

    Virtual MIMO transmitters, receivers, systems and methods
    10.
    发明申请
    Virtual MIMO transmitters, receivers, systems and methods 审中-公开
    虚拟MIMO发射机，接收机，系统和方法

    公开(公告)号：US20050009476A1

    公开(公告)日：2005-01-13

    申请号：US10612976

    申请日：2003-07-07

    申请人： Shiquan Wu ,  Wen Tong ,  Claude Royer ,  Peiying Zhu

    发明人： Shiquan Wu ,  Wen Tong ,  Claude Royer ,  Peiying Zhu

    IPC分类号： H04B7/04 ,  H04B7/06 ,  H04L1/06 ,  H04L27/26 ,  H04B1/02 ,  H03C7/02 ,  H04B1/00 ,  H04B7/02

    CPC分类号： H04L1/0656 ,  H04B7/0413 ,  H04B7/0669 ,  H04B7/0697 ,  H04L27/2626 ,  H04L27/2647

    摘要： A system for doing BLAST with fewer receive antennas or even only one receiving antenna is provided. A system implementation architecture is provided together with a detailed analysis on its principle and theory behind this engineering solution to reduce the MIMO technology cost by using fewer antennas whilst achieving high spectrum efficiency. Examples are provided on how to implement this idea in a CDMA platform and in a OFDM platform. For the CDMA system, the code space is automatically doubled or tripled and therefore a significant system capacity increase is realized. For OFDM systems, the throughput is doubled similar as 2×2 blasting. The system complexity is minimum and full standards backward compatibility can be achieved.

    摘要翻译： 提供了具有较少接收天线或甚至仅一个接收天线进行BLAST的系统。 提供了系统实现架构，并详细分析了该工程解决方案的原理和理论，通过使用更少的天线同时实现高频谱效率来降低MIMO技术成本。 关于如何在CDMA平台和OFDM平台中实现这一想法的实例。 对于CDMA系统，代码空间自动翻倍或三倍，从而实现了显着的系统容量增加。 对于OFDM系统，吞吐量加倍，类似于2x2爆破。 系统的复杂度是最小的，可以实现全面的标准向后兼容性。