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111 条记录 (耗时 0.027 秒)

    System and Method of Waveform Design for Operation Bandwidth Extension
    16.
    发明申请
    System and Method of Waveform Design for Operation Bandwidth Extension 审中-公开
    用于操作带宽扩展的波形设计的系统和方法

    公开(公告)号：US20160294498A1

    公开(公告)日：2016-10-06

    申请号：US14932857

    申请日：2015-11-04

    申请人： Huawei Technologies Co., Ltd.

    发明人： Jianglei Ma ,  Ming Jia ,  Liqing Zhang ,  Kelvin Kar Kin Au

    IPC分类号： H04J11/00 ,  H04L5/00 ,  H04L27/26

    CPC分类号： H04J11/0063 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0064 ,  H04L25/03834 ,  H04L27/2626 ,  H04L27/264 ,  H04L27/2647

    摘要： Different numerologies may be used to communicate orthogonal frequency division multiplexing (OFDM)-based signals over different frequency sub-bands of a given carrier. This may allow the OFDM-based signals to efficiently support diverse traffic types. In some embodiments, the numerology of OFDM-based signal depends on a bandwidth of the frequency sub-band over which the OFDM-based signals are transmitted. In some embodiments, the OFDM-based signals are filtered OFDM (f-OFDM) signals, and the pulse shaping digital filter used to generate the f-OFDM signals allows the receiver to mitigate interference between adjacent f-OFDM signals upon reception, thereby allowing f-OFDM signals to be communicated over consecutive carriers without relying on a guard band.

    摘要翻译： 不同的数学可用于在给定载波的不同频率子带上传送基于正交频分复用（OFDM）的信号。 这可能允许基于OFDM的信号有效地支持不同的业务类型。 在一些实施例中，基于OFDM的信号的数学取决于传输基于OFDM的信号的频率子带的带宽。 在一些实施例中，基于OFDM的信号是经滤波的OFDM（f-OFDM）信号，并且用于产生f-OFDM信号的脉冲整形数字滤波器允许接收机在接收时减轻相邻f-OFDM信号之间的干扰，从而允许 f-OFDM信号将在连续载波上进行通信，而不依赖于保护频带。

    System and Method for Resource Allocation for Sparse Code Multiple Access Transmissions
    17.
    发明申请
    System and Method for Resource Allocation for Sparse Code Multiple Access Transmissions 审中-公开
    稀疏码多址传输资源分配的系统和方法

    公开(公告)号：US20160286529A1

    公开(公告)日：2016-09-29

    申请号：US14668577

    申请日：2015-03-25

    申请人： Huawei Technologies Co., Ltd.

    发明人： Jianglei Ma ,  Ming Jia ,  Peiying Zhu ,  Wen Tong

    IPC分类号： H04W72/04 ,  H04J13/00

    CPC分类号： H04W72/04 ,  H04J13/0003 ,  H04W72/044

    摘要： An embodiment method of resource allocation for sparse code multiple access (SCMA) transmissions includes partitioning a resource block into a plurality of resource regions. The method also includes assigning the plurality of resource regions to respective device groups. The resource region assignments are then signaled to devices of the respective device groups. The method also includes receiving SCMA signals from the devices of the respective device groups. The SCMA signals from one group of the respective device groups are asynchronous with respect to the SCMA signals from another group of the respective device groups.

    摘要翻译： 用于稀疏码多址（SCMA）传输的资源分配的实施方式包括将资源块划分成多个资源区域。 该方法还包括将多个资源区域分配给相应的设备组。 然后将资源区域分配信号发送到相应设备组的设备。 该方法还包括从各个设备组的设备接收SCMA信号。 来自相应设备组的一组的SCMA信号相对于来自相应设备组的另一组的SCMA信号是异步的。

    Systems and Methods for OFDM with Flexible Sub-Carrier Spacing and Symbol Duration
    18.
    发明申请
    Systems and Methods for OFDM with Flexible Sub-Carrier Spacing and Symbol Duration 审中-公开

    公开(公告)号：US20160191216A1

    公开(公告)日：2016-06-30

    申请号：US15065459

    申请日：2016-03-09

    申请人： Huawei Technologies Co., Ltd.

    发明人： Jianglei Ma ,  Ming Jia

    IPC分类号： H04L5/00 ,  H04W72/04 ,  H04L27/26

    摘要： Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.

    System and Method for Semi-Orthogonal Multiple Access
    19.
    发明申请
    System and Method for Semi-Orthogonal Multiple Access 有权
    半正交多址接入系统与方法

    公开(公告)号：US20160065401A1

    公开(公告)日：2016-03-03

    申请号：US14589676

    申请日：2015-01-05

    申请人： Huawei Technologies Co., Ltd.

    发明人： Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Hao Hu

    IPC分类号： H04L27/04 ,  H04L5/00

    CPC分类号： H04L5/02 ,  H04L5/0003 ,  H04L5/04 ,  H04L5/12 ,  H04L27/0008 ,  H04L27/04 ,  H04L27/06 ,  H04L27/34 ,  H04L27/3488

    摘要： A method for operating a transmitting device using semi-orthogonal multiple access (SOMA) includes determining power allocations and sub-quadrature amplitude modulation (sub-QAM) allocations for a first receiving device and a second receiving device in accordance with channel information associated with the first receiving device and the second receiving device, and transmitting information about a first power allocation for the first receiving device, and a first sub-QAM allocation for the first receiving device to the first receiving device.

    摘要翻译： 一种使用半正交多址接入（SOMA）操作发送设备的方法包括：根据与第一接收设备和第二接收设备相关联的信道信息确定第一接收设备和第二接收设备的功率分配和子正交幅度调制（sub-QAM）分配 第一接收装置和第二接收装置，并且向第一接收装置发送关于第一接收装置的第一功率分配的信息和用于第一接收装置的第一子QAM分配。

    Systems and methods for circular convolution
    20.
    发明授权
    Systems and methods for circular convolution 有权
    循环卷积的系统和方法

    公开(公告)号：US09209936B1

    公开(公告)日：2015-12-08

    申请号：US14511872

    申请日：2014-10-10

    申请人： Huawei Technologies Co., Ltd.

    发明人： Ming Jia ,  Mohammad Javad Abdoli ,  Jianglei Ma

    IPC分类号： H04L27/26 ,  H04L1/00 ,  H04L25/03

    CPC分类号： H04L1/0054 ,  H04L25/03159 ,  H04L25/067 ,  H04L27/2631 ,  H04L27/2647 ,  H04L27/2652 ,  H04L27/2698 ,  H04L27/38

    摘要： System and method embodiments are provided for a receiver for circularly convolved signals. In an embodiment, a universal decoder for a circularly convolved signal includes a first decoder configured to decode the circularly convolved signal; a second decoder configured to decode a plurality of symbol lengths signal from a first portion of the circularly convolved signal, wherein the plurality of symbol lengths signal is time aligned with the circularly convolved signal before passing through the second decoder; and an adder component configured to sum a first decoder output coming from the first decoder and a second decoder output coming from the second decoder to produce a symbol value from which a log likelihood ratio (LLR) output is obtained.

    摘要翻译： 为圆形卷积信号的接收机提供系统和方法实施例。 在一个实施例中，用于循环卷积信号的通用解码器包括：第一解码器，被配置为对圆形卷积信号进行解码; 第二解码器，被配置为从所述圆形卷积信号的第一部分解码多个符号长度信号，其中所述多个符号长度信号在通过所述第二解码器之前与所述圆形卷积信号进行时间对准; 以及加法器部件，被配置为对来自第一解码器的第一解码器输出和来自第二解码器的第二解码器输出进行求和，以产生从其获得对数似然比（LLR）输出的符号值。