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    Joint analog and digital interference cancellation in wireless systems
    1.
    发明授权
    Joint analog and digital interference cancellation in wireless systems 有权
    无线系统中的模拟和数字干扰消除联合

    公开(公告)号：US09231647B2

    公开(公告)日：2016-01-05

    申请号：US14219938

    申请日：2014-03-19

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Andreas Polydoros ,  Mark Johnson ,  Thomas R. Halford ,  Michael P Fitz ,  Scott W Enserink

    IPC: H04L25/08 ,  H04B1/62 ,  H04B1/10

    CPC classification number: H04B1/62 ,  H04B1/1027 ,  H04L5/1461

    Abstract: An apparatus for joint analog and digital interference cancellation includes a receiver configured to receive an analog reference interfering signal on a reference path, and a sum of an analog interference signal and an analog signal of interest on an antenna path. An analog interference canceller may be configured to produce an analog partially interference-cancelled signal using the analog reference interfering signal and the sum of the analog interference signal and the analog signal of interest. A first analog-to-digital converter may be configured to digitize the analog reference interfering signal to produce a digital reference interfering signal. A second analog-to-digital converter may be configured to digitize the analog partially interference-cancelled signal to produce a digital partially interference-cancelled signal. A digital interference canceller may be configured to produce an interference-cancelled signal using the digital reference interfering signal and the digital partially interference-cancelled signal.

    Abstract translation: 用于联合模拟和数字干扰消除的装置包括被配置为在参考路径上接收模拟参考干扰信号的接收机，以及天线路径上的模拟干扰信号和感兴趣的模拟信号之和。 模拟干扰消除器可以被配置为使用模拟参考干扰信号和模拟干扰信号和感兴趣的模拟信号的和产生模拟部分干扰消除信号。 第一模数转换器可以被配置为数字化模拟参考干扰信号以产生数字参考干扰信号。 第二模数转换器可以被配置为数字化模拟部分干扰消除信号以产生数字部分干扰消除信号。 数字干扰消除器可以被配置为使用数字参考干扰信号和数字部分干扰消除信号来产生干扰消除信号。

    SECURE GROUP KEY AGREEMENT FOR WIRELESS NETWORKS
    2.
    发明申请
    SECURE GROUP KEY AGREEMENT FOR WIRELESS NETWORKS 有权
    无线网络安全集团关键协议

    公开(公告)号：US20150104017A1

    公开(公告)日：2015-04-16

    申请号：US14053050

    申请日：2013-10-14

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Thomas R. Halford ,  Thomas A. Courtade ,  Keith M. Chugg

    IPC: H04W12/04 ,  H04L9/14

    CPC classification number: H04W12/04 ,  H04L9/083 ,  H04L9/14 ,  H04L63/06 ,  H04L2209/80

    Abstract: A method for secure key agreement among a subset of a plurality of transceivers includes generating a first ordered subset of a plurality of keys kλj, where j=0 to S. Each of the subset of the plurality of transceivers may possess at least one of the plurality of keys kλj from the first ordered subset. Each of the subset of the plurality of transceivers possessing one or more keys kλi, i=1 to S, also possesses at least one key from a second ordered subset of the plurality of keys kλj, j=0 to i−1. A key with index λ0 is designated as a group key. A binary sum of the group key kλ0 and a key kλj, where j≠0, is transmitted from one or more of the subset of the plurality of transceivers that possesses the group key kλ0.

    Abstract translation: 一种用于多个收发器的子集之间的安全密钥协商的方法包括：生成多个密钥kλj的第一有序子集，其中j = 0至S。多个收发器中的每个子集可以具有 来自第一有序子集的多个密钥kλj。 拥有一个或多个密钥kλi，i = 1至S的多个收发器的每个子集还具有来自多个密钥kλj，j = 0至i-1的第二有序子集的至少一个密钥。 索引λ0的键被指定为组密钥。 组密钥kλ0的二进制和和其中j≠0的密钥kλj从具有组密钥kλ0的多个收发器的一个或多个子集发送。

    JOINT ANALOG AND DIGITAL INTERFERENCE CANCELLATION IN WIRELESS SYSTEMS
    3.
    发明申请
    JOINT ANALOG AND DIGITAL INTERFERENCE CANCELLATION IN WIRELESS SYSTEMS 有权
    无线系统中的联合模拟和数字干扰消除

    公开(公告)号：US20150270865A1

    公开(公告)日：2015-09-24

    申请号：US14219938

    申请日：2014-03-19

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Andreas Polydoros ,  Mark Johnson ,  Thomas R. Halford ,  Michael P. Fitz ,  Scott W. Enserink

    IPC: H04B1/62 ,  H04B1/10

    CPC classification number: H04B1/62 ,  H04B1/1027 ,  H04L5/1461

    Abstract: An apparatus for joint analog and digital interference cancellation includes a receiver configured to receive an analog reference interfering signal on a reference path, and a sum of an analog interference signal and an analog signal of interest on an antenna path. An analog interference canceller may be configured to produce an analog partially interference-cancelled signal using the analog reference interfering signal and the sum of the analog interference signal and the analog signal of interest. A first analog-to-digital converter may be configured to digitize the analog reference interfering signal to produce a digital reference interfering signal. A second analog-to-digital converter may be configured to digitize the analog partially interference-cancelled signal to produce a digital partially interference-cancelled signal. A digital interference canceller may be configured to produce an interference-cancelled signal using the digital reference interfering signal and the digital partially interference-cancelled signal.

    Abstract translation: 用于联合模拟和数字干扰消除的装置包括被配置为在参考路径上接收模拟参考干扰信号的接收机，以及天线路径上的模拟干扰信号和感兴趣的模拟信号之和。 模拟干扰消除器可以被配置为使用模拟参考干扰信号和模拟干扰信号和感兴趣的模拟信号的和产生模拟部分干扰消除信号。 第一模数转换器可以被配置为数字化模拟参考干扰信号以产生数字参考干扰信号。 第二模数转换器可以被配置为数字化模拟部分干扰消除信号以产生数字部分干扰消除信号。 数字干扰消除器可以被配置为使用数字参考干扰信号和数字部分干扰消除信号来产生干扰消除信号。

    Method and system for controlling the peak-to-average power ratio of orthogonal frequency-domain signals
    5.
    发明授权
    Method and system for controlling the peak-to-average power ratio of orthogonal frequency-domain signals 有权
    用于控制正交频域信号的峰均功率比的方法和系统

    公开(公告)号：US09172573B2

    公开(公告)日：2015-10-27

    申请号：US14495658

    申请日：2014-09-24

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Keith M. Chugg ,  Cenk Kose ,  Thomas R. Halford

    IPC: H04L27/06 ,  H04L27/26 ,  H04L1/00

    CPC classification number: H04L27/2618 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0057

    Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.

    Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。

    Secure group key agreement for wireless networks
    6.
    发明授权
    Secure group key agreement for wireless networks 有权
    无线网络的安全组密钥协议

    公开(公告)号：US09084112B2

    公开(公告)日：2015-07-14

    申请号：US14053050

    申请日：2013-10-14

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Thomas R. Halford ,  Thomas A. Courtade ,  Keith M. Chugg

    IPC: H04L29/00 ,  H04W12/04 ,  H04L9/14

    CPC classification number: H04W12/04 ,  H04L9/083 ,  H04L9/14 ,  H04L63/06 ,  H04L2209/80

    Abstract: A method for secure key agreement among a subset of a plurality of transceivers includes generating a first ordered subset of a plurality of keys kλj, where j=0 to S. Each of the subset of the plurality of transceivers may possess at least one of the plurality of keys kλj from the first ordered subset. Each of the subset of the plurality of transceivers possessing one or more keys kλi, i=1 to S, also possesses at least one key from a second ordered subset of the plurality of keys kλj, j=0 to i−1. A key with index λ0 is designated as a group key. A binary sum of the group key kλ0 and a key kλj, where j≠0, is transmitted from one or more of the subset of the plurality of transceivers that possesses the group key kλ0.

    Abstract translation: 一种用于多个收发器的子集之间的安全密钥协商的方法包括：生成多个密钥kλj的第一有序子集，其中j = 0至S。多个收发器中的每个子集可以具有 来自第一有序子集的多个密钥kλj。 拥有一个或多个密钥kλi，i = 1至S的多个收发器的每个子集还具有来自多个密钥kλj，j = 0至i-1的第二有序子集的至少一个密钥。 索引λ0的键被指定为组密钥。 组密钥kλ0的二进制和和其中j≠0的密钥kλj从具有组密钥kλ0的多个收发器的一个或多个子集发送。

    METHOD AND SYSTEM FOR CONTROLLING THE PEAK-TO-AVERAGE POWER RATIO OF ORTHOGONAL FREQUENCY-DOMAIN SIGNALS
    7.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING THE PEAK-TO-AVERAGE POWER RATIO OF ORTHOGONAL FREQUENCY-DOMAIN SIGNALS 有权
    用于控制正交频域信号的峰值平均功率比的方法和系统

    公开(公告)号：US20150010116A1

    公开(公告)日：2015-01-08

    申请号：US14495658

    申请日：2014-09-24

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Keith M. Chugg ,  Cenk Kose ,  Thomas R. Halford

    IPC: H04L27/26 ,  H04L1/00

    CPC classification number: H04L27/2618 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0057

    Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.

    Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。

    METHOD AND SYSTEM FOR ESTABLISHING COOPERATIVE ROUTING IN WIRELESS NETWORKS
    8.
    发明申请
    METHOD AND SYSTEM FOR ESTABLISHING COOPERATIVE ROUTING IN WIRELESS NETWORKS 有权
    在无线网络中建立合作路由的方法和系统

    公开(公告)号：US20140161015A1

    公开(公告)日：2014-06-12

    申请号：US13896763

    申请日：2013-05-17

    Applicant: TrellisWare Technologies, Inc.

    Inventor： Thomas A. Brown III ,  Adam M. Blair ,  Mark L. Johnson ,  Thomas R. Halford

    IPC: H04W40/28 ,  H04W84/18

    CPC classification number: H04W40/28 ,  H04B7/2606 ,  H04L45/10 ,  H04L45/122 ,  H04L45/22 ,  H04L45/24 ,  H04W16/26 ,  H04W40/22 ,  H04W76/12 ,  H04W84/18 ,  H04W88/04

    Abstract: A system and method is presented for establishing relayed communications involving (1) sending a request message from a source node to a destination node through a plurality of intermediate nodes, (2) receiving the request message at the destination node, and (3) sending an acceptance message from the destination node to the source node through at least a subset of the intermediate nodes, wherein an intermediate node relays the request or acceptance message by receiving the message and re-transmitting the message, and wherein the intermediate node is capable of receiving the message from more than one other intermediate node.

    Abstract translation: 提出了一种用于建立中继通信的系统和方法，涉及（1）通过多个中间节点从源节点向目的地节点发送请求消息，（2）在目的地节点处接收请求消息，以及（3）发送 通过所述中间节点的至少一个子集从所述目的地节点到所述源节点的接受消息，其中中间节点通过接收所述消息并重新发送所述消息来中继所述请求或接受消息，并且其中所述中间节点能够 从多个其他中间节点接收消息。

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