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    Low Complexity Receiver and Method for Low Density Signature Modulation
    11.
    发明申请
    Low Complexity Receiver and Method for Low Density Signature Modulation 有权
    低复杂度接收机和低密度签名调制方法

    公开(公告)号：US20140269663A1

    公开(公告)日：2014-09-18

    申请号：US14212583

    申请日：2014-03-14

    Applicant: FutureWei Technologies, Inc.

    Inventor： Hosein Nikopour ,  Alireza Bayesteh ,  Mohammadhadi Baligh

    IPC: H04B7/26

    CPC classification number: H04B1/707 ,  H04J13/0007

    Abstract: Method and apparatus embodiments are provided for low complexity message passing algorithm (MPA) detection with substantially minor or tolerated performance loss compared to the standard MPA. A method includes calculating, at a detector, a plurality of function nodes (FNs) according to a plurality of received multiplexing signals for a one or a plurality of user equipments (UEs) using a plurality of first MPA computations that map a plurality of variable nodes (VNs) corresponding to the UEs to the FNs and using a priori information in an initial vector of probabilities for each of the VNs, excluding from the first MPA computations a plurality of first relatively small multiplication terms, updating the probabilities for the VNs using the last calculated FNs and a plurality of second MPA computations that map the FNs to the VNs, and excluding a plurality of second relatively small multiplication terms from the second MPA calculations.

    Abstract translation: 提供了与标准MPA相比具有基本上较小或容忍的性能损失的低复杂度消息传递算法（MPA）检测的方法和装置实施例。 一种方法包括：使用多个第一MPA计算，根据用于一个或多个用户设备（UE）的多个接收到的多路复用信号，在检测器处计算多个功能节点（FN），所述第一MPA计算映射多个变量 将与UE对应的节点（VN）与FN相对应，并且对于每个VN使用概率初始向量中的先验信息，从第一MPA计算中排除多个第一相对较小的乘法项，更新VN的概率，使用 最后计算的FN和多个第二MPA计算，其将FN映射到VN，并且从第二MPA计算中排除多个第二相对较小的乘法项。

    System and Method for Open-Loop MIMO Communications in a SCMA Communications System
    13.
    发明申请
    System and Method for Open-Loop MIMO Communications in a SCMA Communications System 有权
    SCMA通信系统中开环MIMO通信的系统和方法

    公开(公告)号：US20140169408A1

    公开(公告)日：2014-06-19

    申请号：US14035996

    申请日：2013-09-25

    Applicant: FutureWei Technologies, Inc.

    Inventor： Alireza Bayesteh ,  Hosein Nikopour ,  Jianglei Ma

    IPC: H04B7/04

    CPC classification number: H04B7/0473 ,  H04B1/707 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0669 ,  H04J11/004 ,  H04L25/03898

    Abstract: A method for transmitting data includes mapping a first coded information bit stream intended for a first transmit antenna onto at least one first spreading sequence of a plurality of first spreading sequences to generate a first data stream, mapping a second coded information bit stream intended for a second transmit antenna onto at least one second spreading sequence of a plurality of second spreading sequences to generate a second data stream. The method also includes transmitting the first data stream and the second data stream on respective transmit antennas.

    Abstract translation: 一种用于发送数据的方法包括将用于第一发射天线的第一编码信息比特流映射到多个第一扩频序列的至少一个第一扩频序列上，以产生第一数据流，映射第一编码信息比特流， 第二发射天线到多个第二扩展序列的至少一个第二扩展序列以产生第二数据流。 该方法还包括在相应发射天线上发送第一数据流和第二数据流。

    Systems and Methods for Waveform Selection and Adaptation
    14.
    发明申请
    Systems and Methods for Waveform Selection and Adaptation 有权
    波形选择和适应的系统和方法

    公开(公告)号：US20140146754A1

    公开(公告)日：2014-05-29

    申请号：US13688926

    申请日：2012-11-29

    Applicant: FUTUREWEI TECHNOLOGIES, INC.

    Inventor： Alireza Bayesteh ,  Hosein Nikopour ,  Jianglei Ma

    IPC: H04W72/02

    CPC classification number: H04L1/0001

    Abstract: Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.

    Abstract translation: 提供了用于提供波形适配的系统，方法和装置。 在一个示例中，提供了一种用于识别多个候选波形并选择用于数据传输的候选波形之一的方法。 候选波形可以根据发送设备的传输能力，接收设备的接收能力，期望的峰值平均功率比（PAPR）特性，相邻信道的一个或多个标准来识别 干扰（ACI）排除要求，频谱定位要求等标准。 可以根据一个或多个波形选择准则来选择用于数据传输的波形，例如业务特性，应用类型等。

    System and method for adaptive transmission time interval (TTI) structure
    15.
    发明授权
    System and method for adaptive transmission time interval (TTI) structure 有权

    公开(公告)号：US09743403B2

    公开(公告)日：2017-08-22

    申请号：US14823873

    申请日：2015-08-11

    Applicant: Futurewei Technologies, Inc.

    Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Zhihang Yi ,  Hosein Nikopour

    IPC: H04W28/02 ,  H04W72/04 ,  H04W88/08

    CPC classification number: H04W72/0446 ,  H04W28/0205 ,  H04W72/042 ,  H04W88/08

    Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons, such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.

    System and method for open-loop MIMO communications in a SCMA communications system
    16.
    发明授权
    System and method for open-loop MIMO communications in a SCMA communications system 有权
    SCMA通信系统中开环MIMO通信的系统和方法

    公开(公告)号：US09166663B2

    公开(公告)日：2015-10-20

    申请号：US14035996

    申请日：2013-09-25

    Applicant: FutureWei Technologies, Inc.

    Inventor： Alireza Bayesteh ,  Hosein Nikopour ,  Jianglei Ma

    IPC: H04L27/00 ,  H04B7/04 ,  H04L25/03 ,  H04B7/02 ,  H04B7/06

    CPC classification number: H04B7/0473 ,  H04B1/707 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0669 ,  H04J11/004 ,  H04L25/03898

    Abstract: A method for transmitting data includes mapping a first coded information bit stream intended for a first transmit antenna onto at least one first spreading sequence of a plurality of first spreading sequences to generate a first data stream, mapping a second coded information bit stream intended for a second transmit antenna onto at least one second spreading sequence of a plurality of second spreading sequences to generate a second data stream. The method also includes transmitting the first data stream and the second data stream on respective transmit antennas.

    Abstract translation: 一种用于发送数据的方法包括将用于第一发射天线的第一编码信息比特流映射到多个第一扩频序列的至少一个第一扩频序列上，以产生第一数据流，映射第一编码信息比特流， 第二发射天线到多个第二扩展序列的至少一个第二扩展序列以产生第二数据流。 该方法还包括在相应发射天线上发送第一数据流和第二数据流。

    System and Method for Increasing Low Density Signature Space
    18.
    发明申请
    System and Method for Increasing Low Density Signature Space 有权
    增加低密度签名空间的系统和方法

    公开(公告)号：US20150071182A1

    公开(公告)日：2015-03-12

    申请号：US14021907

    申请日：2013-09-09

    Applicant: FutureWei Technologies, Inc.

    Inventor： Alireza Bayesteh ,  Jianglei Ma ,  Hosein Nikopour ,  Zhihang Yi

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0051 ,  H04L5/0042 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/0446

    Abstract: Embodiments are provided herein for increasing low density signature space for multiplexed transmissions for a plurality of users. The embodiments include generating a virtual signature using a combination operation on a plurality of basic signatures. The generated virtual signatures are provisioned as basic resource units (BRUs) for transmissions for corresponding users. The combination operation is a row-wise or column-wise permutation for combining, in each of the virtual signatures, rows or columns of corresponding basic signatures. The rows or columns represent sequences of frequency bands at one time interval or sequences of allocated time intervals at one frequency band. Alternatively, the combination operation is intra-basic resource unit (BRU) hopping. The embodiments also include generating a plurality of BRU sets comprised of virtual signatures. Each of the BRU sets is provisioned for a corresponding user.

    Abstract translation: 本文提供了用于增加用于多个用户的多路复用传输的低密度签名空间的实施例。 实施例包括使用对多个基本签名的组合操作来生成虚拟签名。 生成的虚拟签名被提供为用于相应用户的传输的基本资源单元（BRU）。 组合操作是用于在每个虚拟签名中组合相应基本签名的行或列的逐行或列逐排列。 行或列以一个时间间隔表示频带的序列或者在一个频带处分配的时间间隔的序列。 或者，组合操作是基本资源单元（BRU）跳频。 实施例还包括生成由虚拟签名组成的多个BRU集合。 为相应的用户设置了每个BRU组。

    System and Method for Pruning an Over-Defined System Model
    19.
    发明申请
    System and Method for Pruning an Over-Defined System Model 有权
    修剪过度定义系统模型的系统和方法

    公开(公告)号：US20140188444A1

    公开(公告)日：2014-07-03

    申请号：US13732173

    申请日：2012-12-31

    Applicant: FUTUREWEI TECHNOLOGIES, INC.

    Inventor： Ming Jia ,  Hosein Nikopour

    IPC: G06F17/50

    CPC classification number: G06F17/5036

    Abstract: 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.

    Abstract translation: 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。

    Systems and Methods for Sparse Code Multiple Access
    20.
    发明申请
    Systems and Methods for Sparse Code Multiple Access 有权
    稀疏码多路访问系统与方法

    公开(公告)号：US20140140360A1

    公开(公告)日：2014-05-22

    申请号：US13730355

    申请日：2012-12-28

    Applicant: FUTUREWEI TECHNOLOGIES, INC.

    Inventor： Hosein Nikopour ,  Mohammadhadi Baligh

    IPC: H04J13/00

    CPC classification number: H04L27/362 ,  H04B1/707 ,  H04B7/0413 ,  H04B7/0473 ,  H04J13/00 ,  H04J13/0074 ,  H04L5/0021 ,  H04L27/345

    Abstract: Coding gains can be achieved by encoding binary data directly to multi-dimensional codewords, which circumvents QAM symbol mapping employed by conventional CDMA encoding techniques. Further, multiple access can be achieved by assigning different codebooks to different multiplexed layers. Moreover, sparse codewords can be used to reduce baseband processing complexity on the receiver-side of the network, as sparse codewords can be detected within multiplexed codewords in accordance with message passing algorithms (MPAs).

    Abstract translation: 可以通过将二进制数据直接编码到多维码字来实现编码增益，这避免了常规CDMA编码技术所采用的QAM符号映射。 此外，可以通过将不同的码本分配给不同的多路复用层来实现多址。 此外，稀疏码字可以用于降低网络接收机侧的基带处理复杂度，因为可以根据消息传递算法（MAs）在多路复用码字内检测稀疏码字。

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