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    Symbol-wise channel tracking for smart utility networks (SUN) orthogonal frequency division multiplexing (OFDM)
    31.
    发明授权
    Symbol-wise channel tracking for smart utility networks (SUN) orthogonal frequency division multiplexing (OFDM) 有权
    用于智能公用事业网络（SUN）正交频分复用（OFDM）的符号式信道跟踪

    公开(公告)号：US09083571B2

    公开(公告)日：2015-07-14

    申请号：US14145471

    申请日：2013-12-31

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Reza Hoshyar ,  Anuj Batra ,  Timothy Mark Schmidl

    IPC: H04B1/10 ,  H04L25/02 ,  H04L27/26

    CPC classification number: H04L25/0202 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/023 ,  H04L27/26 ,  H04L27/2601

    Abstract: A device for updating complex channel gain estimates for orthogonal frequency division multiplexed (OFDM) symbols that includes a receiver to receive a plurality of OFDM symbols, wherein each OFDM symbol includes a plurality of pilot tones at a subset of odd positions and a finite impulse response (FIR) filter. The FIR filter configured to filter a plurality of initial channel estimates of odd tones of an OFDM symbol using a first set of coefficients to generate an updated estimate of the channel estimates of the plurality of odd tones for that OFDM symbol, and filter the plurality of the initial channel estimates of the odd tones of the OFDM symbol using a second set of coefficients to generate estimates for a plurality of initial channel estimates of even tones for that OFDM symbol.

    Abstract translation: 一种用于更新用于正交频分复用（OFDM）符号的复信道增益估计的装置，其包括用于接收多个OFDM符号的接收机，其中每个OFDM符号包括在奇数位置的子集处的多个导频音调和有限脉冲响应 （FIR）滤波器。 FIR滤波器被配置为使用第一组系数来过滤OFDM符号的奇数音调的多个初始信道估计，以生成用于该OFDM符号的多个奇音调的信道估计的更新估计，并且对多个 使用第二组系数的OFDM符号的奇数音调的初始信道估计来生成用于该OFDM符号的偶数个音调的多个初始信道估计的估计。

    TURBO HSDPA SYSTEM
    32.
    发明申请
    TURBO HSDPA SYSTEM 审中-公开
    TURBO HSDPA系统

    公开(公告)号：US20140355506A1

    公开(公告)日：2014-12-04

    申请号：US14463422

    申请日：2014-08-19

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Timothy Mark Schmidl ,  Eko Nugroho Onggosanusi ,  Anand Ganesh Dabak ,  Aris Papasakellariou

    IPC: H04W52/02 ,  H04L5/00 ,  H04B7/04

    CPC classification number: H04L5/0044 ,  H04B1/1615 ,  H04B7/0413 ,  H04B7/2656 ,  H04L5/0007 ,  H04L5/0048 ,  H04W52/0229 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/26 ,  Y02D70/40 ,  Y02D70/444 ,  Y02D70/449

    Abstract: A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.

    Abstract translation: 公开了一种用于无线收发机（图1和图2）的省电方法。 收发器具有有功功率模式（504）和降低功率模式（510）。 收发器以降低功率模式（510）运行，并且在降低功率模式下监视来自远程无线发射机的传输。 收发器通过包含在传输中的收发信机标识符来识别来自远程无线发射机的传输（图6，UE标识）。 响应于识别传输，收发器转换到有功功率模式（512）。

    DSSS Preamble Detection for Smart Utility Networks
    33.
    发明申请
    DSSS Preamble Detection for Smart Utility Networks 有权
    智能公用事业网络的DSSS前导码检测

    公开(公告)号：US20130202014A1

    公开(公告)日：2013-08-08

    申请号：US13762245

    申请日：2013-02-07

    Applicant: Texas Instruments Incorporated

    Inventor： Timothy Mark Schmidl

    IPC: H04B1/707

    CPC classification number: H04B1/707

    Abstract: Embodiments of the invention provide a method to detect DSSS preambles in smart utility networks. A DSSS signal is received by a receiver and a digital sequence of samples is formed. A difference value is calculated between pairs of samples in the digital sequence of samples to form a sequence of differential values. A known preamble differential value sequence is correlated with the sequence of differential values to form a sequence of correlation values. A location of the preamble is located in the digital sequence of samples corresponding to a peak in the sequence of correlation values that exceeds a threshold value.

    Abstract translation: 本发明的实施例提供一种在智能公用事业网络中检测DSSS前导码的方法。 DSSS信号由接收机接收并形成数字序列样本。 在数字样本序列中的样本对之间计算差值，以形成差分值序列。 已知的前导码差分值序列与差分值的序列相关，以形成相关值序列。 前导码的位置位于对应于超过阈值的相关值序列中的峰值的数字样本序列中。

    Wireless networks utilizing multiple modulations
    36.
    发明授权
    Wireless networks utilizing multiple modulations 有权

    公开(公告)号：US10680861B2

    公开(公告)日：2020-06-09

    申请号：US15899310

    申请日：2018-02-19

    Applicant: Texas Instruments Incorporated

    Inventor： Timothy Mark Schmidl ,  Srinath Hosur ,  Anuj Batra

    IPC: H04L27/00 ,  H04L27/26

    Abstract: A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (PHY) modulation, and at least one other node utilizes a second PHY modulation different from the first PHY modulation. The first node receives a PHY frame transmitted by one of the plurality of nodes, and identifies a PHY modulation type selected from the first PHY modulation and the second PHY modulation used in the PHY frame or to be used in a subsequently to be received PHY frame or frame portion. The first node decodes the PHY frame or the subsequently to be received PHY frame or frame portion using the PHY modulation type identified in the identifying step.

    Time-domain windowing function
    40.
    发明授权
    Time-domain windowing function 有权
    时域窗口功能

    公开(公告)号：US09461861B2

    公开(公告)日：2016-10-04

    申请号：US14048411

    申请日：2013-10-08

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Anuj Batra ,  Timothy Mark Schmidl ,  Il Han Kim

    IPC: H04L25/49 ,  H04L27/26 ,  H04B3/54 ,  H04L25/03

    CPC classification number: H04L27/2634 ,  H04B3/542 ,  H04B2203/5433 ,  H04L25/03834

    Abstract: A smart utility network (SUN) device that includes an orthogonal frequency-division multiplexing (OFDM)-based transmitter. The OFDM-based transmitter including a signal processor to convert data from a frequency-domain to a time-domain using an inverse fast Fourier transform (IFFT) and configured to perform a time-domain windowing function based on a Hanning window on OFDM symbols.

    Abstract translation: 一种智能公用事业网络（SUN）装置，其包括基于正交频分复用（OFDM）的发射机。 基于OFDM的发射机包括信号处理器，用于使用逆快速傅里叶变换（IFFT）将数据从频域转换到时域，并被配置为基于OFDM符号上的汉宁窗执行时域加窗函数。

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