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    SCHEDULING ENERGY HARVESTING NODES IN A WIRELESS SENSOR NETWORKS
    1.
    发明申请
    SCHEDULING ENERGY HARVESTING NODES IN A WIRELESS SENSOR NETWORKS 有权

    公开(公告)号：US20210368515A1

    公开(公告)日：2021-11-25

    申请号：US17396868

    申请日：2021-08-09

    申请人： Texas Instruments Incorporated

    发明人： Bradford James Campbell ,  Ariton E. Xhafa ,  Anuj Batra

    IPC分类号： H04W72/10

    摘要： A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.

    ROBUST MODE FOR POWER LINE COMMUNICATIONS
    2.
    发明申请
    ROBUST MODE FOR POWER LINE COMMUNICATIONS 有权

    公开(公告)号：US20210288691A1

    公开(公告)日：2021-09-16

    申请号：US17333374

    申请日：2021-05-28

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： II Han Kim ,  Tarkesh Pande ,  Anuj Batra

    IPC分类号： H04B3/54

    摘要： Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line.

    Scheduling energy harvesting nodes in a wireless sensor networks
    3.
    发明授权
    Scheduling energy harvesting nodes in a wireless sensor networks 有权

    公开(公告)号：US11089605B2

    公开(公告)日：2021-08-10

    申请号：US16557002

    申请日：2019-08-30

    申请人： Texas Instruments Incorporated

    发明人： Bradford James Campbell ,  Ariton E. Xhafa ,  Anuj Batra

    IPC分类号： H04W72/10

    摘要： A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.

    Method to use a preamble with band extension in power line communications
    4.
    发明授权
    Method to use a preamble with band extension in power line communications 有权

    公开(公告)号：US11025301B2

    公开(公告)日：2021-06-01

    申请号：US16239732

    申请日：2019-01-04

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Il Han Kim ,  Tarkesh Pande ,  Anuj Batra

    IPC分类号： H04B3/54

    摘要： Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line.

    SHORT AND LONG TRAINING FIELDS
    5.
    发明申请
    SHORT AND LONG TRAINING FIELDS 有权

    公开(公告)号：US20210037491A1

    公开(公告)日：2021-02-04

    申请号：US17072232

    申请日：2020-10-16

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Timothy M. Schmidl ,  Anuj Batra ,  Srinath Hosur

    IPC分类号： H04W56/00 ,  H04L27/26 ,  H04W4/80

    摘要： A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.

    Frequency diversity modulation system and method
    7.
    发明授权
    Frequency diversity modulation system and method 有权

    公开(公告)号：US10200171B2

    公开(公告)日：2019-02-05

    申请号：US15651132

    申请日：2017-07-17

    申请人： Texas Instruments Incorporated

    发明人： Jing Lin ,  Tarkesh Pande ,  Il Han Kim ,  Anuj Batra

    IPC分类号： H04W72/12 ,  H04W28/04 ,  H04L27/20 ,  H04L5/00 ,  H04L27/36 ,  H04B3/54

    摘要： A method of encoding a first bit and a second bit for transmission on a transmission band is provided. The method includes: mapping, via a mapping component, the first bit and the second bit into a first symbol; mapping, via the mapping component, the first bit and the second bit into a second symbol; dividing, via a dividing component, the transmission band into subcarriers; allocating, via an allocating component, the first symbol to a first subcarrier of the subcarriers; allocating, via the allocating component, the second symbol to a second subcarrier of the subcarriers; and differentially encoding, via a differential encoder, the first symbol and the second symbol.

    PLC FCH unitary circle differential symbol and preamble encoding determination
    9.
    发明授权
    PLC FCH unitary circle differential symbol and preamble encoding determination 有权
    PLC FCH单圆差分符号和前导码编码确定

    公开(公告)号：US09537533B2

    公开(公告)日：2017-01-03

    申请号：US14056755

    申请日：2013-10-17

    申请人： Texas Instruments Incorporated

    发明人： Anuj Batra ,  Tarkesh Pande ,  Il Han Kim

    IPC分类号： H04B3/54 ,  H04L27/233 ,  H04L27/26

    CPC分类号： H04B3/542 ,  H04L27/2331 ,  H04L27/2613

    摘要： Embodiments of the invention provide a method for discriminating between two types of encoding schemes for the frame control header (FCH) used in G3-type narrow band OFDM communications. The two modes for encoding are Differential with respect to the previous Symbol (DS) and Differential with respect to the Preamble (DP). This mode is sometimes referred to as “coherent” mode.

    摘要翻译： 本发明的实施例提供了一种用于鉴别在G3型窄带OFDM通信中使用的帧控制报头（FCH）的两种类型的编码方案的方法。 编码的两种模式相对于先前的符号（DS）和差分相对于前导码（DP）是差分的。 这种模式有时被称为“相干”模式。