公开(公告)号：US20220060962A1

公开(公告)日：2022-02-24

申请号：US17517700

申请日：2021-11-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ARITON XHAFA ,  JIANWEI ZHOU ,  XIAOLIN LU ,  IL HAN KIM ,  KAICHIEN TSAI

IPC: H04W40/02 ,  H04W36/00 ,  H04W72/04 ,  H04L12/931 ,  H04W8/26 ,  H04W72/00 ,  H04L12/18 ,  H04W74/08

Abstract: A network includes a mobile network node (MNN) that includes a mobile node communications manager (MNCM) to facilitate wireless communications to a plurality of stationary network nodes (SNNs) in a wireless network via a wireless network protocol. The MNCM utilizes a multicast address received over the wireless network. The multicast address is assigned to a predetermined network time slot to communicate uplink data from the MNN to the SNNs. The MNN receives downlink data via a separate predetermined network address and time slot assigned to a given SNN.

公开(公告)号：US20170099114A1

公开(公告)日：2017-04-06

申请号：US14969330

申请日：2015-12-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： MEHMET ALI DONMEZ ,  ANAND GANESH DABAK ,  IL HAN KIM ,  TIMOTHY MARK SCHMIDL

IPC: H04B11/00

CPC classification number: H04B11/00 ,  H04L27/122 ,  H04L27/144

Abstract: A method of encoding a plurality of data signals is disclosed. The method includes selecting a set of M ultrasonic frequencies, wherein each of the M ultrasonic frequencies differs from an adjacent frequency by at least a first frequency spacing, and wherein M is a positive integer. An encoder receives the plurality of data signals. Each of the plurality of data signals is encoded by a respective set of Q of the M ultrasonic frequencies, wherein Q is a positive integer less than M. A minimum frequency separation between any pair of the Q ultrasonic frequencies of any respective set is greater than the first frequency spacing.

公开(公告)号：US20160277070A1

公开(公告)日：2016-09-22

申请号：US14925598

申请日：2015-10-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： MEHUL SOMAN ,  IL HAN KIM

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

CPC classification number: H04B3/542 ,  H04L7/0079 ,  H04L7/041 ,  H04L27/2608

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.

Abstract translation: 公开了一种操作通信系统的方法。 该方法包括形成具有多个正交频分复用（OFDM）符号的数据帧。 第一组前导子载波被分配给至少一个OFDM符号。 第二组数据子载波被分配给所述至少一个OFDM符号。

公开(公告)号：US20180248860A1

公开(公告)日：2018-08-30

申请号：US15718745

申请日：2017-09-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ARITON E. XHAFA ,  XIAOLIN LU ,  JIANWEI ZHOU ,  IL HAN KIM

IPC: H04L29/06 ,  H04B1/713 ,  H04L9/06 ,  H04W12/04

Abstract: A network includes a first wireless node that communicates over a wireless network connection. The first wireless node includes a first encryption engine that processes a first initialization data set and a current transmit sequence associated with a current communication to generate a next transmit sequence that is employed to communicate with a second wireless node that derives a next received sequence that corresponds to the next transmit sequence to process a subsequent communication.

公开(公告)号：US20180242266A1

公开(公告)日：2018-08-23

申请号：US15703700

申请日：2017-09-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ARITON E. XHAFA ,  JIANWEI ZHOU ,  IL HAN KIM ,  KAICHIEN TSAI ,  XIAOLIN LU

IPC: H04W56/00 ,  H04W24/08 ,  H04W72/12 ,  H04W48/16

CPC classification number: H04W56/001 ,  H04B1/70718 ,  H04J3/0652 ,  H04L5/0005 ,  H04W24/08 ,  H04W48/16 ,  H04W72/1263

Abstract: A network includes a plurality of parent nodes to communicate in a wireless network via a wireless network protocol. A network node establishes a network connection to one of the parent nodes of the plurality of parent nodes in response to received beacons from the parent nodes. A signal analyzer in the network node processes a received signal strength of the beacons and the number of beacons received over a given time period from each of the parent nodes. The signal analyzer selects the parent node by analyzing the received signal strength for a number of beacons received from each parent node with respect to a number of expected beacons transmitted from each parent node of the plurality of parent nodes over the given time period.

公开(公告)号：US20180234893A1

公开(公告)日：2018-08-16

申请号：US15703668

申请日：2017-09-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ARITON XHAFA ,  JIANWEI ZHOU ,  XIAOLIN LU ,  IL HAN KIM ,  KAICHIEN TSAI

IPC: H04W36/00 ,  H04W72/04 ,  H04L12/931

CPC classification number: H04W36/0033 ,  H04L12/189 ,  H04L49/201 ,  H04W8/26 ,  H04W72/005 ,  H04W72/0406 ,  H04W72/0426 ,  H04W76/15 ,  H04W84/18 ,  H04W92/20

Abstract: A network includes a mobile network node (MNN) that includes a mobile node communications manager (MNCM) to facilitate wireless communications to a plurality of stationary network nodes (SNNs) in a wireless network via a wireless network protocol. The MNCM utilizes a multicast address received over the wireless network. The multicast address is assigned to a predetermined network time slot to communicate uplink data from the MNN to the SNNs. The MNN receives downlink data via a separate predetermined network address and time slot assigned to a given SNN.

公开(公告)号：US20150110163A1

公开(公告)日：2015-04-23

申请号：US14589017

申请日：2015-01-05

Applicant: Texas Instruments Incorporated

Inventor： RAMANUJA VEDANTHAM ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM ,  KUMARAN VIJAYASANKAR

IPC: H04B3/54 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04B3/542 ,  H04B2203/5408 ,  H04B2203/5445 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04L69/22

Abstract: A method of communications includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion.

Abstract translation: 一种通信方法包括在网络上的第一通信节点处由第一通信设备编译用于物理层（PHY）的数据帧。 数据帧包括一组音调中的单音PHY头部部分和数据有效载荷部分，包括具有与单音频率不同的频率的至少一个音调。 PHY报头部分包括识别该组音调的色调掩码识别信息。 第一通信设备通过电力线将数据帧发送到电力线上的第二通信节点处的第二通信设备。 第二通信设备接收数据帧，并使用PHY报头部分中的色调掩码识别信息解码数据有效载荷。

公开(公告)号：US20170257144A1

公开(公告)日：2017-09-07

申请号：US15601063

申请日：2017-05-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： MEHUL SOMAN ,  IL HAN KIM

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

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：US20170195228A1

公开(公告)日：2017-07-06

申请号：US15462703

申请日：2017-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  RAMANUJA VEDANTHAM ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM

IPC: H04L12/801 ,  H04B3/54 ,  H04L12/835

CPC classification number: H04L47/266 ,  H04B3/542 ,  H04B2203/5408 ,  H04L47/12 ,  H04L47/127 ,  H04L47/30 ,  H04L47/32 ,  Y02D50/10

Abstract: A method of powerline unications in a powerline communications (PLC) network including a first node and at least a second node. The first node transmits a data frame to the second node over a PLC channel. The second node has a data buffer for storing received information. The second node runs a flow control algorithm which determines a current congestion condition or a projected congestion condition of the data buffer based on at least one congestion parameter. The current congestion condition and projected congestion condition include nearly congested and fully congested. When the current or projected congestion condition is either nearly congested or fully congested, the second node transmits a BUSY including frame over the PLC channel to at least the first node. The first node defers transmitting of any frames to the second node for a congestion clearing wait time.

公开(公告)号：US20150085881A1

公开(公告)日：2015-03-26

申请号：US14556373

申请日：2014-12-01

Applicant: Texas Instruments Incorporated

Inventor： GANG XU ,  RAMANUJA VEDANTHAM ,  KUMARAN VIJAYASANKAR ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM ,  XIAOLIN LU

IPC: H04L29/06 ,  H04B3/54

CPC classification number: H04L69/22 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408

Abstract: A physical layer (PHY) data frame for use in conjunction with processor in a node, processor coupled to a program memory for storing a sequence of operating instructions. The frame has a preamble, PHY header, a MAC header and a MAC payload. The PHY header includes a destination address field having a destination address therein. The destination address is used by the processor to determine match with the node address.

Abstract translation: 与节点中的处理器结合使用的物理层（PHY）数据帧，耦合到程序存储器的处理器，用于存储操作指令序列。 帧具有前同步码，PHY报头，MAC报头和MAC有效载荷。 PHY标头包括其中具有目的地地址的目的地地址字段。 处理器使用目的地地址来确定与节点地址的匹配。