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    TIME-ALIGNMENT OF SIGNALS SUFFERING FROM QUADRATURE ERRORS
    22.
    发明申请
    TIME-ALIGNMENT OF SIGNALS SUFFERING FROM QUADRATURE ERRORS 有权
    从正交错误中消失的信号的时间对齐

    公开(公告)号：US20170048096A1

    公开(公告)日：2017-02-16

    申请号：US14822792

    申请日：2015-08-10

    Applicant: Altiostar Networks, Inc.

    Inventor： John N. Ibison

    IPC: H04L27/38 ,  H04L27/36 ,  H04L7/00 ,  H04L1/20

    CPC classification number: H04L27/3863 ,  H04L1/20 ,  H04L1/206 ,  H04L7/0029 ,  H04L27/36

    Abstract: Data is received characterizing a first signal and a second signal. The first signal and a function of the second signal is compared at a plurality of time-shifts to estimate a time-difference between the first signal and the second signal. The function of the second signal includes the second signal, a complex conjugate of the second signal, and a constant. The comparison is provided. At least one of receiving, comparing, and providing is performed by at least one processor of at least one computing system.

    Abstract translation: 接收表征第一信号和第二信号的数据。 在多个时移上比较第一信号和第二信号的功能，以估计第一信号和第二信号之间的时间差。 第二信号的功能包括第二信号，第二信号的复共轭和常数。 提供比较。 由至少一个计算系统的至少一个处理器执行接收，比较和提供中的至少一个。

    Wireless transfer device and method for control of wireless transfer band
    23.
    发明授权
    Wireless transfer device and method for control of wireless transfer band 有权
    无线传输设备及无线传输频带控制方法

    公开(公告)号：US09571237B2

    公开(公告)日：2017-02-14

    申请号：US14413914

    申请日：2013-07-04

    Applicant: NEC Corporation

    Inventor： Kaichiro Saito

    IPC: H04L1/20 ,  H04L1/00 ,  H04L5/00 ,  H04W24/08 ,  H04W28/02

    CPC classification number: H04L1/206 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04W24/08 ,  H04W28/0236

    Abstract: A wireless transfer device (100) is provided with: a transfer band control unit (13) for deciding upon a transfer band, on the basis of the result of a comparison of communication quality information pertaining to wireless communication, and a predetermined band control threshold value; a modulation scheme control unit (14) for deciding on a modulation scheme, on the basis of the result of a comparison of communication quality information and a predetermined modulation control threshold value; a transmission process unit (11) for controlling the transfer band for packet signals on the basis of the transfer band decided upon by the transfer band control unit (13), and outputting packet signals; and a wireless transceiver unit (12), for performing a modulation process on the packet signals output by the transmission process unit (11), doing so on the basis of the modulation scheme decided upon by the modulation scheme control unit (14). The band control threshold value and the modulation control threshold value are different values. In so doing, loss of high-priority packet signals, as well as transient fluctuations of transfer delay time, are avoided.

    Abstract translation: 无线传送装置（100）具备：传送频带控制部（13），用于根据与无线通信有关的通信质量信息的比较结果和规定的频带控制阈值 值; 根据通信质量信息的比较结果和规定的调制控制阈值，对调制方式进行判定的调制方式控制部（14） 根据由传送频带控制单元（13）决定的传送频带，控制分组信号的传送频带的发送处理单元（11），并输出分组信号; 以及无线收发器单元（12），用于对由所述发送处理单元（11）输出的分组信号执行调制处理，根据由所述调制方案控制单元（14）决定的调制方式进行。 频带控制阈值和调制控制阈值是不同的值。 这样做，避免了高优先级分组信号的丢失，以及传输延迟时间的瞬时波动。

    METHOD AND APPARATUS OF SIGNAL TRANSMISSION AND RECEPTION IN A FILTER BANK MULTIPLE CARRIER SYSTEM
    24.
    发明申请
    METHOD AND APPARATUS OF SIGNAL TRANSMISSION AND RECEPTION IN A FILTER BANK MULTIPLE CARRIER SYSTEM 有权
    滤波器多载波系统中信号传输和接收的方法与装置

    公开(公告)号：US20160380689A1

    公开(公告)日：2016-12-29

    申请号：US15192978

    申请日：2016-06-24

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Pengfei Sun ,  Dalin Zhu ,  Bin Yu

    IPC: H04B7/06 ,  H04W72/04 ,  H04B7/04

    CPC classification number: H04L1/206 ,  H04L25/03159 ,  H04L2025/03414

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Provided is a method of transmitting signals in an FBMC/OQAM system. Data symbols transmitted in category-2 data symbols or category-3 data symbols are determined according to interference from all of adjacent OQAM data symbols and an intrinsic interference coefficient of category-2 data symbols interference experienced by category-3 data symbols in a user data block, so that transmission symbols in the category-3 data symbols composed of transmitted data symbols and interference include target data symbols of the category-3 data symbols and target data symbols of the category-2 data symbols. A transmitting device transmits the data symbols of the category-3 data symbols and data symbols transmitted in category-2 data symbols together with other data symbols in the user data block.

    Abstract translation: 本公开涉及提供用于支持更高数据速率的第5代（5G）或5G通信系统超越第四代（4G）通信系统，例如长期演进（LTE）。 提供了一种在FBMC / OQAM系统中发送信号的方法。 根据来自所有相邻OQAM数据符号的干扰和在用户数据中由类别3数据符号经历的类别2数据符号干扰的固有干扰系数来确定在2类数据符号或3类数据符号中发送的数据符号 使得由发送的数据符号和干扰组成的3类数据符号中的传输符号包括3类数据符号的目标数据符号和2类数据符号的目标数据符号。 发送装置将在类别2数据符号中发送的3类数据符号和数据符号的数据符号与用户数据块中的其他数据符号一起发送。

    System and method of communication using at least two modulation methods
    26.
    发明授权
    System and method of communication using at least two modulation methods 有权
    使用至少两种调制方法的通信系统和方法

    公开(公告)号：US09432172B2

    公开(公告)日：2016-08-30

    申请号：US14549064

    申请日：2014-11-20

    Applicant: REMBRANDT WIRELESS TECHNOLOGIES, LP

    Inventor： Gordon Bremer ,  Paul Schneck

    IPC: H04B1/38 ,  H04L5/14 ,  H04L27/00 ,  H04L1/20 ,  H04L25/02

    CPC classification number: H04L27/0008 ,  H04L1/206 ,  H04L5/1453 ,  H04L12/66 ,  H04L25/0262 ,  H04L61/3075 ,  H04M7/006 ,  H04M7/0069

    Abstract: Methods and systems are provided for simple cable phone and internet (SCPI) device that may be coupled with a cable modem (CM) and one or more SCPI head ends, e.g., via an SCPI access point. The CM may be capable of communicating a first modulated signal with a cable modem termination system (CMTS), via the SCPI device. The SCPI device may be capable of combining a second modulated signal to the first modulated signal thereby generating a combined signal. The SCPI device may be capable of sending the combined signal comprising the first modulated signal and the second modulated signal to the CMTS and an SCPI head end. The SCPI head end may be capable of processing the combined signal and extract information and/or data associated with a service. The SCPI head end may deliver the extracted information and/or data to an appropriate gateway.

    Abstract translation: 为简单的有线电话和互联网（SCPI）设备提供方法和系统，其可以与电缆调制解调器（CM）和一个或多个SCPI头端耦合，例如经由SCPI接入点。 CM可能能够经由SCPI设备与电缆调制解调器终端系统（CMTS）通信第一调制信号。 SCPI设备可以能够将第二调制信号与第一调制信号组合，从而产生组合信号。 SCPI设备可以能够将包括第一调制信号和第二调制信号的组合信号发送到CMTS和SCPI头端。 SCPI头端可能能够处理组合信号并提取与服务相关联的信息和/或数据。 SCPI头端可以将提取的信息和/或数据传送到适当的网关。

    Impulsive Noise Rejection
    27.
    发明申请
    Impulsive Noise Rejection 有权
    脉冲噪声抑制

    公开(公告)号：US20160204810A1

    公开(公告)日：2016-07-14

    申请号：US14990571

    申请日：2016-01-07

    Applicant: Imagination Technologies Limited

    Inventor： Paul Murrin

    IPC: H04B1/10 ,  H04B17/20 ,  H04B7/06 ,  H04L5/00

    CPC classification number: H04B1/10 ,  H04B7/0626 ,  H04B17/20 ,  H04B17/309 ,  H04B17/354 ,  H04L1/206 ,  H04L5/0007 ,  H04L25/02 ,  H04L27/2647

    Abstract: A method of rejecting impulsive noise in an OFDM receiver is described. The impulsive noise is rejected using channel state information (CSI) and is performed in the frequency domain. A noise power estimate (furthermore referred to as a noise value) is measured for a single OFDM symbol and compared to a threshold value, which may be generated based on a short-term average of OFDM symbols not corrupted by impulsive noise or predicted based on a small number of previously measured OFDM symbols not corrupted by impulsive noise. If the noise estimate for the particular OFDM symbol exceeds the threshold value, the CSI for that symbol is derated (i.e. modified) to reduce the influence of the information from this symbol on the decoding process.

    Abstract translation: 描述了在OFDM接收机中拒绝脉冲噪声的方法。 使用信道状态信息（CSI）来抑制脉冲噪声，并且在频域中执行脉冲噪声。 对于单个OFDM符号测量噪声功率估计（此外称为噪声值），并且与阈值进行比较，该阈值可以基于未被冲击噪声破坏的OFDM符号的短期平均值而产生，或者基于 少量先前测量的OFDM符号未被脉冲噪声破坏。 如果特定OFDM符号的噪声估计超过阈值，则该符号的CSI被降频（即修改），以减少来自该符号的信息对解码过程的影响。

    Detecting Leakage of OFDM Signals from an HFC Network
    28.
    发明申请
    Detecting Leakage of OFDM Signals from an HFC Network 有权
    检测HFC网络中OFDM信号的泄漏

    公开(公告)号：US20160197804A1

    公开(公告)日：2016-07-07

    申请号：US14936551

    申请日：2015-11-09

    Applicant: ARCOM DIGITAL, LLC

    Inventor： Victor M. Zinevich

    IPC: H04L12/26 ,  H04L27/26

    CPC classification number: H04L43/08 ,  H04B3/46 ,  H04L1/206 ,  H04L27/2601 ,  H04N17/004

    Abstract: Detecting a leak of an OFDM signal from an HFC network, where the HFC network extends over a network area. The OFDM signal includes a first continuous pilot subcarrier having a first harmonic. The first harmonic is defined by a pre-determined first frequency. The method or apparatus comprises the steps of or means for: (a) moving a leakage detector through the network area; (b) tuning the leakage detector to receive the first harmonic of the OFDM signal, based on the pre-determined first frequency of the first harmonic; (c) with the leakage detector, receiving over-the-air, at a received first frequency, the first harmonic of the OFDM signal leaked from the HFC network; and (d) with the leakage detector, detecting the first harmonic received in step (c), whereby the leak of the OFDM signal is detected based on the detection of the first harmonic.

    Abstract translation: 检测来自HFC网络的OFDM信号的泄漏，其中HFC网络在网络区域上延伸。 OFDM信号包括具有第一谐波的第一连续导频子载波。 第一谐波由预定的第一频率定义。 该方法或装置包括以下步骤或装置：（a）通过网络区域移动泄漏检测器; （b）基于预定的第一谐波的第一频率调谐漏电检测器以接收OFDM信号的第一谐波; （c）利用泄漏检测器，以接收到的第一频率接收来自HFC网络的OFDM信号的一次谐波; 和（d）利用泄漏检测器检测在步骤（c）中接收到的一次谐波，由此基于一次谐波的检测来检测OFDM信号的泄漏。

    Method for reducing power consumption when estimating timing errors in wireless signals
    29.
    发明授权
    Method for reducing power consumption when estimating timing errors in wireless signals 有权
    估计无线信号定时误差时的功耗降低方法

    公开(公告)号：US09264216B1

    公开(公告)日：2016-02-16

    申请号：US14665915

    申请日：2015-03-23

    Applicant: Nitero Pty Ltd.

    Inventor： Ngoc Vinh Vu ,  Antonio Torrini

    IPC: H04W4/00 ,  H04L7/00 ,  H04J3/06 ,  H04L1/20 ,  H04L1/00

    CPC classification number: H04L27/00 ,  H04L1/0053 ,  H04L1/206 ,  H04L7/10 ,  H04W52/00 ,  H04W52/367 ,  H04W56/00

    Abstract: A method and apparatus for low power timing recovery is provided. In an embodiment, different gains are used to estimate timing errors during different portions of the data packet. In an embodiment, timing errors are only estimated during known sequences of a data packet. In further embodiments, errors are initially estimated independently in a first portion of the data packet in order to determine a phase shift between the errors. In the second portion of the data packet, the total error is derived from one estimated error and the phase shift between the errors.

    Abstract translation: 提供了一种用于低功率定时恢复的方法和装置。 在一个实施例中，使用不同的增益来估计数据分组的不同部分期间的定时误差。 在一个实施例中，仅在数据分组的已知序列期间估计定时误差。 在另外的实施例中，首先在数据分组的第一部分中独立地估计错误，以便确定错误之间的相移。 在数据包的第二部分中，总误差是从一个估计误差和误差之间的相移导出的。

    Methods and arrangements for phase tracking in wireless networks
    30.
    发明授权
    Methods and arrangements for phase tracking in wireless networks 有权
    无线网络中相位跟踪的方法和布置

    公开(公告)号：US09231809B2

    公开(公告)日：2016-01-05

    申请号：US13730941

    申请日：2012-12-29

    Applicant: Shahrnaz Azizi ,  Eldad Perahia ,  Thomas J. Kenney

    Inventor： Shahrnaz Azizi ,  Eldad Perahia ,  Thomas J. Kenney

    IPC: H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L25/02

    CPC classification number: H04L27/2647 ,  H04L1/205 ,  H04L1/206 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03159 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2025/03414

    Abstract: Logic may determine phase correction information from pilot tones. Logic may determine phase correction information from some of the pilot locations. Logic may process the shifting pilot tones for less than all of the pilot tones. Logic may process pilot tones at any location within orthogonal frequency division multiplexing (OFDM) packet. Logic may determine to process only pilot tones at the even or odd symbol indices or subcarriers. And logic may transmit a packet with a frame with a capabilities information field comprising an indication that a receiver may can process shifting pilot tones for phase tracking.

    Abstract translation: 逻辑可以确定来自导频音的相位校正信息。 逻辑可以确定来自一些导频位置的相位校正信息。 逻辑可以处理少于所有导频音调的移动导频音。 逻辑可以在正交频分复用（OFDM）分组内的任何位置处理导频音。 逻辑可以确定仅在偶或奇符号索引或子载波处理导频音。 并且逻辑可以用具有能力信息字段的帧发送分组，能力信息字段包括接收机可以处理用于相位跟踪的移位导频音的指示。

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