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    SYSTEM AND METHOD FOR PRE-DISTORTION AND ITERATIVE COMPENSATION FOR NONLINEAR DISTORTION IN SYSTEM EMPLOYING FTN SYMBOL TRANSMISSION RATES
    2.
    发明申请
    SYSTEM AND METHOD FOR PRE-DISTORTION AND ITERATIVE COMPENSATION FOR NONLINEAR DISTORTION IN SYSTEM EMPLOYING FTN SYMBOL TRANSMISSION RATES 有权
    用于系统使用FTN符号传输速率的非线性失真的预失真和迭代补偿的系统和方法

    公开(公告)号：US20160087712A1

    公开(公告)日：2016-03-24

    申请号：US14955007

    申请日：2015-11-30

    申请人： Hughes Network Systems, LLC

    发明人： Bassel BEIDAS ,  Rohit Iyer SESHADRI ,  Mustafa EROZ ,  Lin-Nan LEE

    IPC分类号： H04B7/185 ,  H04B1/04

    CPC分类号： H04B7/18517 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

    摘要： A signal transmission approach comprises encoding a source signal (comprising source symbols) to generate a corresponding encoded signal. The encoded signal is modulated by mapping each source symbol to a respective signal constellation point of an applied signal constellation to generate a modulated signal. The modulated signal is pre-distorted based on a distortion estimate to generate a pre-distorted signal. The pre-distorted signal is filtered to generate a filtered signal. The filtered signal is frequency translated and amplified to generate a transmission signal for transmission via an uplink channel of a satellite communications system. To increase throughput, the source signal is processed through the apparatus and the resulting transmission signal is generated at a Faster-than-Nyquist (FTN) symbol rate and with a tight frequency roll-off. The modulated signal is pre-distorted based on a distortion estimate relating to the nonlinearity and the filters applied before and/or after the pre-distorter.

    摘要翻译： 信号传输方法包括编码源信号（包括源符号）以产生对应的编码信号。 通过将每个源符号映射到所施加的信号星座的相应信号星座点来调制编码信号以产生调制信号。 调制信号基于失真估计被预失真以产生预失真信号。 预失真信号被滤波以产生滤波信号。 经滤波的信号被频率转换和放大以产生用于经由卫星通信系统的上行链路信道传输的传输信号。 为了增加吞吐量，通过装置处理源信号，并且以更快的奈奎斯特（FTN）符号速率和严格的频率滚降产生所得到的传输信号。 基于与非线性相关的失真估计和在预失真器之前和/或之后应用的滤波器，调制信号被预失真。

    SYSTEM AND METHOD FOR PRE DISTORTION AND ITERATIVE COMPENSATION FOR NONLINEAR DISTORTION IN SYSTEM EMPLOYING FTN SYMBOL TRANSMISSION RATES
    3.
    发明申请
    SYSTEM AND METHOD FOR PRE DISTORTION AND ITERATIVE COMPENSATION FOR NONLINEAR DISTORTION IN SYSTEM EMPLOYING FTN SYMBOL TRANSMISSION RATES 有权
    用于系统使用FTN符号传输速率的非线性失真的预失真和迭代补偿的系统和方法

    公开(公告)号：US20150098521A1

    公开(公告)日：2015-04-09

    申请号：US14510080

    申请日：2014-10-08

    申请人： Hughes Network Systems, LLC

    发明人： Bassel BEIDAS ,  Rohit Iyer SESHADRI ,  Mustafa EROZ ,  Lin-Nan LEE

    IPC分类号： H04B1/04 ,  H04B7/185

    CPC分类号： H04B7/18517 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

    摘要： A signal transmission approach comprises encoding a source signal (comprising a plurality of source symbols) to generate a corresponding encoded signal. The encoded signal is modulated by mapping each source symbol to a respective signal constellation point of an applied signal constellation to generate a modulated signal. The modulated signal is pre-distorted based on a distortion estimate to generate a pre-distorted signal. The pre-distorted signal is filtered to generate a filtered signal. The filtered signal is frequency translated and amplified to generate a transmission signal for transmission via an uplink channel of a satellite communications system. To increase throughput, the source signal is processed through the apparatus and the resulting transmission signal is generated at a Faster-than-Nyquist (FTN) symbol rate and with a tight frequency roll-off. The modulated signal is pre-distorted based on a distortion estimate relating to the nonlinearity and the filters applied before and/or after the pre-distorter.

    摘要翻译： 信号传输方法包括对源信号（包括多个源符号）进行编码以产生对应的编码信号。 通过将每个源符号映射到所施加的信号星座的相应信号星座点来调制编码信号以产生调制信号。 调制信号基于失真估计被预失真以产生预失真信号。 预失真信号被滤波以产生滤波信号。 经滤波的信号被频率转换和放大以产生用于经由卫星通信系统的上行链路信道传输的传输信号。 为了增加吞吐量，通过装置处理源信号，并且以更快的奈奎斯特（FTN）符号速率和严格的频率滚降产生所得到的传输信号。 基于与非线性相关的失真估计和在预失真器之前和/或之后应用的滤波器，调制信号被预失真。

    METHOD AND APPARATUS FOR A PARAMETERIZED INTERLEAVER DESIGN PROCESS
    4.
    发明申请
    METHOD AND APPARATUS FOR A PARAMETERIZED INTERLEAVER DESIGN PROCESS 有权
    用于参数交互设计过程的方法和装置

    公开(公告)号：US20130318421A1

    公开(公告)日：2013-11-28

    申请号：US13955862

    申请日：2013-07-31

    申请人： Hughes Network Systems. LLC

    发明人： Rohit Iyer SESHADRI ,  Mustafa EROZ ,  Lin-Nan LEE

    IPC分类号： H03M13/27

    CPC分类号： H03M13/2767 ,  H03M13/275 ,  H03M13/276 ,  H03M13/2789

    摘要： A parameterized interleaver design process is provided, which optimizes the design for interleavers of any size, and can be completely specified using only a few design parameters. According to the parameterized interleaver design process an interleaver π(i) of a length N is generated. A number of subpermutation masks are defined, and a first intermediate interleaver permutation is partitioned into a number of subgroups, wherein the number of subgroups corresponds with the number of subpermutation masks. Each of the subgroups of the first intermediate interleaver permutation is partitioned into a number of further subgroups, and each of the subpermutation masks is applied to each of the further subgroups of a corresponding subgroup of the first intermediate interleaver permutation, resulting in a corresponding portion of a second intermediate interleaver permutation. The resulting interleaver π(i) is generated based at least in part on the first and second intermediate interleaver permutations.

    摘要翻译： 提供了一种参数化的交织器设计过程，其优化了任何尺寸的交织器的设计，并且可以仅使用少量设计参数来完全指定。 根据参数化交织器设计处理，生成长度为N的交织器pi（i）。 定义了多个子鉴别掩码，并且将第一中间交织器置换分割成多个子组，其中子组的数量对应于子鉴别掩码的数量。 第一中间交织器置换的每个子组被划分成多个其他子组，并且每个子精确掩码被应用于第一中间交织器置换的对应子组的其他子组中的每一个，导致相应部分 第二中间交织器排列。 至少部分地基于第一和第二中间交织器排列来生成所产生的交织器pi（i）。

    SERVICE DELIVERY AT THE EDGE
    6.
    发明申请
    SERVICE DELIVERY AT THE EDGE 有权

    公开(公告)号：US20210227046A1

    公开(公告)日：2021-07-22

    申请号：US16749325

    申请日：2020-01-22

    申请人： HUGHES NETWORK SYSTEMS, LLC

    发明人： Chi-Jiun SU ,  Neal BECKER ,  Lin-Nan LEE ,  Stan KAY

    IPC分类号： H04L29/08 ,  H04L12/66 ,  H04L12/14 ,  H04L12/26 ,  H04B7/185 ,  G06F9/455

    摘要： A method and system for delivering services to terminals and associated edge devices in a satellite communication system. A network node remotely creates at least one service appliance within a terminal of the satellite communication system and customer premise equipment (CPE) connected to the terminal. Containerized applications are then transmitted from the network node to the service appliance. The service appliance subsequently executes the containerized application using hardware resources of the terminal and CPE. Usage of the containerized application can also be monitored.

    OPTIMIZED RECEIVERS FOR FASTER THAN NYQUIST (FTN) TRANSMISSION RATES IN HIGH SPECTRAL EFFICIENCY SATELLITE SYSTEMS
    7.
    发明申请
    OPTIMIZED RECEIVERS FOR FASTER THAN NYQUIST (FTN) TRANSMISSION RATES IN HIGH SPECTRAL EFFICIENCY SATELLITE SYSTEMS 有权

    公开(公告)号：US20160164702A1

    公开(公告)日：2016-06-09

    申请号：US15007149

    申请日：2016-01-26

    申请人： Hughes Network Systems, LLC

    发明人： Bassel BEIDAS ,  Rohit Iyer SESHADRI ,  Mustafa EROZ ,  Lin-Nan LEE

    IPC分类号： H04L25/03

    CPC分类号： H04L25/03318 ,  H04L25/03286 ,  H04L2025/03611 ,  H04L2025/03777

    摘要： An approach is provided for increasing transmission throughput rates for a source signal transmitted over a wireless channel, applying faster-than-Nyquist (FTN) signaling rates combined with tight frequency roll-off to the a source signal. A receiver is provided that compensates for ISI effects induced by the FTN rate and tight frequency roll-off, where the complexity of the receiver grows only linearly with the interference memory. The receiver comprises an equalizer configured to compensate for the ISI effects, and a decoder configured to decode the output of the equalizer to determine and regenerate the source signal. The receiver processes the received signal via a plurality of processing iterations. For one processing iteration, the decoder generates a set of a posteriori soft information based on the output of the equalizer, and the equalizer uses the a posteriori soft information as a priori soft information for a subsequent processing iteration.

    METHOD AND APPARATUS FOR CONVOLUTIONAL CODING TO SUPPORT MULTIPLEXING IN A WIDEBAND COMMUNICATIONS SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR CONVOLUTIONAL CODING TO SUPPORT MULTIPLEXING IN A WIDEBAND COMMUNICATIONS SYSTEM 有权
    用于在宽带通信系统中支持多路复用的交替编码的方法和装置

    公开(公告)号：US20140115429A1

    公开(公告)日：2014-04-24

    申请号：US13860960

    申请日：2013-04-11

    申请人： Hughes Network Systems, LLC

    发明人： Mustafa EROZ ,  Yezdi ANTIA ,  Lin-Nan LEE

    IPC分类号： H03M13/00

    CPC分类号： H03M13/235 ,  H03M13/005 ,  H03M13/6522 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0069 ,  H04L1/0075 ,  H04L1/08

    摘要： An approach for encoding a physical layer (PL) header of a PL data frame is provided. The PL header comprises sixteen information bits ui, (i=0, 1, 2, . . . , 15), and the encoding is based on a convolutional code, whereby, for each information bit, five associated parity bits Pi,k, (k=0, 1, 2, 3, 4) are generated, resulting in 80 codebits. The resulting 80 codebits are punctured to form a (16,77) codeword (c0, c1, c2, . . . , c76). The codebits of the (16,77) codeword are repeated to generate a (16,154) physical layer signaling codeword (c0, c0, c1, c1, c2, c2, . . . , c76, c76) for transmission of the PL data frame over a channel of a communications network. Further, for each information bit, each of the associated five parity bits is generated based on a parity bit generator, as follows: pi,k=(ui*gk,0)⊕(s0*gk,1)⊕(S1*gk,2)⊕(S2*gk,3)⊕(S3*gk,4), where S0=ui-1, S1=ui-2, S2=i-3, S3=ui-4, and wherein generator polynomials for gk=(gk,0, gk,1, gk,2, gk,3, gk,4), are as follows: g0=(1, 0, 1, 0, 1); g1=(1, 0, 1, 1, 1) ; g2=(1, 1, 0, 1, 1); g3=(1, 1, 1, 1, 1); g4=(1, 1, 0, 0, 1).

    摘要翻译： 提供了一种对PL数据帧的物理层（PL）头进行编码的方法。 PL标头包括十六个信息位ui，（i = 0,1,2，...，15），并且编码基于卷积码，由此，对于每个信息比特，五个相关联的奇偶校验位Pi，k， （k = 0,1,2,3,4），产生80个码位。 所得到的80个码位被打孔以形成（16,77）码字（c0，c1，c2，...，c76）。 重复（16,77）码字的码位以产生用于PL数据帧的传输的（16,154）物理层信令码字（c0，c0，c1，c1，c2，c2，...，c76，c76） 通过通信网络的信道。 此外，对于每个信息位，相关联的五个奇偶校验位中的每一个基于奇偶校验位产生器生成，如下：pi，k =（ui * gk，0）⊕（s0 * gk，1）⊕（S1 * gk ，2）⊕（S2 * gk，3）⊕（S3 * gk，4）其中S0 = ui-1，S1 = ui-2，S2 = i-3，S3 = ui-4，其中生成多项式 gk =（gk，0，gk，1，gk，2，gk，3，gk，4）如下：g0 =（1,0,1,0,1）; g1 =（1,0,1,1,1）; g2 =（1,1,0,1,1）; g3 =（1,1,1,1,1）; g4 =（1,1,0,0,1）。

    ASYNCHRONOUS NON-ORTHOGONAL MULTIPLE ACCESS IN A TIME/FREQUENCY DIVISION ORTHOGONAL MULTIPLE ACCESS NETWORK
    10.
    发明申请
    ASYNCHRONOUS NON-ORTHOGONAL MULTIPLE ACCESS IN A TIME/FREQUENCY DIVISION ORTHOGONAL MULTIPLE ACCESS NETWORK 审中-公开

    公开(公告)号：US20200044762A1

    公开(公告)日：2020-02-06

    申请号：US16530974

    申请日：2019-08-02

    申请人： Hughes Network Systems, LLC

    发明人： Lin-Nan LEE ,  Neal D. BECKER ,  Mustafa EROZ

    IPC分类号： H04J3/16 ,  H04J3/06

    摘要： Systems and methods are described, and one method includes allocate a continuous duration within a TDMA scheme, for asynchronous NOMA transmissions, and extending from an allocation start time to an allocation termination time, formed of contiguous time slots of the TDMA scheme, and included providing to asynchronous NOMA user terminals an indication of the allocation start time and termination time, indicating allowance to perform asynchronous NOMA transmissions within a start time constraint that starts of the asynchronous NOMA transmissions do not precede the allocation start time, and terminations of the asynchronous NOMA transmissions do not succeed the allocation termination time.