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    • 24. 发明申请
    • Frame Structure for Filter Bank Multi-Carrier (FBMC) Waveforms
    • 滤波器组多载波(FBMC)波形的帧结构
    • US20150312011A1
    • 2015-10-29
    • US14742497
    • 2015-06-17
    • Futurewei Technologies, Inc.
    • Javad AbdoliMing JiaJianglei Ma
    • H04L5/00H04J11/00H04L27/26
    • H04L5/0007H04J11/00H04J2011/0013H04J2011/0016H04J2011/0096H04L5/0053H04L27/2602H04L27/264H04W88/04
    • A unified frame structure for filter bank multi-carrier (FBMC) and orthogonal frequency division multiplexed (OFDM) waveforms may allow FBMC and OFDM frames to be communicated over a common channel without significant inter-frame gaps. The unified frame structure may set an FBMC frame duration to an integer multiple of an OFDM frame element duration to enable alignment of FBMC frames and OFDM frames in the time domain. The unified frame structure may also map control channels in the FBMC and OFDM frames to common resource locations so that the respective control channels are aligned in the time and/or frequency domains. The unified frame structure may also share synchronization channels between FBMC and OFDM frames. Additionally, overhead in an FBMC time division duplexed (TDD) communications channel can be reduced by overlapping time windows appended to FBMC blocks.
    • 用于滤波器组多载波(FBMC)和正交频分复用(OFDM)波形的统一帧结构可以允许FBMC和OFDM帧在公共信道上通信而没有显着的帧间间隙。 统一帧结构可以将FBMC帧持续时间设置为OFDM帧单元持续时间的整数倍,以使得时域中的FBMC帧和OFDM帧的对准。 统一的帧结构还可以将FBMC和OFDM帧中的控制信道映射到公共资源位置,使得相应的控制信道在时域和/或频域中对齐。 统一的帧结构也可以共享FBMC和OFDM帧之间的同步信道。 另外,FBMC时分双工(TDD)通信信道的开销可以通过将FBMC块附加的时间窗口重叠来减少。
    • 26. 发明申请
    • Channel Sounding for Frequency Division Duplex System
    • 频分双工系统通道探测
    • US20150055525A1
    • 2015-02-26
    • US13974819
    • 2013-08-23
    • FutureWei Technologies, Inc
    • Jianglei MaMing Jia
    • H04W24/02H04W72/12
    • H04W72/1273H04L1/00H04L5/0048H04L5/14H04L25/0226H04W24/02H04W72/1289
    • System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
    • 系统和方法实施例被提供用于频分双工(FDD)系统中的信道探测。 这些实施例使得传输点(TP)能够在为下行链路信道频带上的上行链路信道探测保留的时间窗口期间从在下行链路信道频带上接收的上行链路信道探测信号确定关于下行链路信道的信道信息。 在一个实施例中,控制器中的一种方法包括使用控制器确定下行链路频带中的上行链路探测窗口的调度,其中上行链路探测窗口包括至少部分下行链路频带中的传输窗口,其被保留用于上行链路信道 发声,指示TP向TP的覆盖区域中的至少一个无线设备发信号,接收下行频带中的信道探测信号,并从该信道探测信号获得下行链路信道状态信息。
    • 28. 发明申请
    • System and Method for Pruning an Over-Defined System Model
    • 修剪过度定义系统模型的系统和方法
    • US20140188444A1
    • 2014-07-03
    • US13732173
    • 2012-12-31
    • FUTUREWEI TECHNOLOGIES, INC.
    • Ming JiaHosein Nikopour
    • G06F17/50
    • G06F17/5036
    • Methods and apparatuses are provided to select coefficients for modeling a system. Data collected from the system is used to generate a data matrix. An upper triangular matrix can be generated in accordance with the data matrix, and the upper triangular matrix can be pruned to remove selected rows and columns from the upper triangular matrix, thereby generating a pruned data matrix. A coefficient vector can be generated in accordance with the pruned data matrix. Various alternative methods of selecting coefficients for modeling the system, as well as apparatus, devices, and systems for performing said methods, are also provided.
    • 提供方法和装置来选择用于建模系统的系数。 从系统收集的数据用于生成数据矩阵。 可以根据数据矩阵生成上三角矩阵,并且可以修剪上三角矩阵以从上三角矩阵中去除所选择的行和列,从而生成修剪的数据矩阵。 可以根据修剪的数据矩阵生成系数向量。 还提供了选择系统建模系数的各种替代方法,以及用于执行所述方法的装置,设备和系统。