公开(公告)号：US20140307810A1

公开(公告)日：2014-10-16

申请号：US14048411

申请日：2013-10-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj BATRA ,  Timothy Mark SCHMIDL ,  Il Han KIM

IPC: H04L27/26 ,  H04B3/54

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。

公开(公告)号：US20210111756A1

公开(公告)日：2021-04-15

申请号：US17128336

申请日：2020-12-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mehul SOMAN ,  Il Han KIM

IPC: H04B3/54 ,  H04L5/00 ,  H04L7/00 ,  H04L7/04 ,  H04L27/26

Abstract: A method of operating a communication system is disclosed. The method includes forming a data frame having plural orthogonal frequency division multiplex (OFDM) symbols. A first set of preamble subcarriers is allocated to at least one of the OFDM symbols. A second set of data subcarriers is allocated to said at least one of the OFDM symbols.

公开(公告)号：US20210204114A1

公开(公告)日：2021-07-01

申请号：US16730485

申请日：2019-12-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Feng L. MO ,  Jianwei ZHOU ,  Xiaolin LU ,  Il Han KIM ,  Kaichien TSAI

IPC: H04W12/00 ,  H04W12/04 ,  H04W40/24 ,  H04L12/733 ,  H04L12/751 ,  H04L9/08

Abstract: A multi-hop mesh network includes a root network device and a first network device. The first network device is configured to establish a first direct wireless connection with the root network device and negotiate a first shared secret key with the root network device. The multi-hop network further includes a second network device configured to establish a second direct wireless connection with the first network device and negotiate a second shared secret key with the first network device.