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    BEACON SCHEDULING FOR WIRELESS NETWORKS
    61.
    发明申请
    BEACON SCHEDULING FOR WIRELESS NETWORKS 有权

    公开(公告)号：US20240422670A1

    公开(公告)日：2024-12-19

    申请号：US18815991

    申请日：2024-08-27

    Applicant: Texas Instruments Incorporated

    Inventor： Ariton E. Xhafa ,  Bradford James Campbell ,  Anuj Batra ,  Srinath Hosur

    IPC: H04W52/02

    Abstract: A system and method for reducing energy consumption in a wireless network. In one embodiment, a system includes a network coordinator configured to manage access to a wireless network. The network coordinator includes a controller. The controller is configured to define a channel hopping list that specifies on which channel a beacon signal is transmitted in each slot frame of the wireless network. The controller is also configured to set a number of time slots in each slot frame based on a length of the channel hopping list. The controller is further configured to transmit a first beacon signal in each slot frame on a channel specified by the channel hopping list. The number of slots in each slot frame causes the first beacon signal to be transmitted on a same channel in each slot frame.

    SHORT AND LONG TRAINING FIELDS
    65.
    发明公开
    SHORT AND LONG TRAINING FIELDS 审中-公开

    公开(公告)号：US20230292263A1

    公开(公告)日：2023-09-14

    申请号：US18319069

    申请日：2023-05-17

    Applicant: Texas Instruments Incorporated

    Inventor： Timothy M. Schmidl ,  Anuj Batra ,  Srinath Hosur

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

    CPC classification number: H04W56/001 ,  H04L27/2613 ,  H04L27/2634 ,  H04W4/80 ,  H04L27/26132

    Abstract: 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.

    Coexistence of wireless sensor networks with other wireless networks
    66.
    发明授权
    Coexistence of wireless sensor networks with other wireless networks 有权

    公开(公告)号：US11570790B2

    公开(公告)日：2023-01-31

    申请号：US16679929

    申请日：2019-11-11

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Ariton E. Xhafa ,  Soon-Hyeok Choi ,  Srinath Hosur ,  Yanjun Sun

    IPC: H04J3/00 ,  H04W72/12 ,  H04W84/18 ,  H04W4/80 ,  H04W88/06 ,  H04W84/12

    Abstract: A method for communicating in a wireless sensor network (WSN) is described. Using control logic, a first wireless transceiver is caused to transmit a wireless packet to a node in a wireless sensor network. The control logic bases its causing on a transmission coinciding with a break in transmission for a second wireless network, such that the transmission from the first wireless transceiver does not coincide with transmissions made on the second wireless network. Time synchronized channel hopping (TSCH) slot frames for wireless packet transmission in the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing TSCH. Wake up sequence transmissions for the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing coordinated sampled listening (CSL).

    Networking coding system in a network layer
    67.
    发明授权
    Networking coding system in a network layer 有权

    公开(公告)号：US10944503B2

    公开(公告)日：2021-03-09

    申请号：US14930230

    申请日：2015-11-02

    Applicant: Texas Instruments Incorporated

    Inventor： Samantha Rose Summerson ,  Anuj Batra ,  Srinath Hosur ,  Georgios Angelopoulos

    IPC: H04L12/00 ,  H04L1/00 ,  H04W28/06 ,  H03M13/15 ,  H03M13/37 ,  G06F11/10

    Abstract: A network coding system. A packet decoding engine receives a number of received packets. A packet repository is coupled to the decoding engine to temporarily store the received packets. The packet decoding engine is configured to generate a decoding matrix by forming a sub-matrix by selecting columns of a network code matrix that have indices that are the same as the indices of the encoded packets that correspond to the selected received packets. The packet decoding engine is also configured to invert the sub-matrix to form the decoding matrix and multiply the received packet matrix by the decoding matrix to generate a recovered matrix where each column corresponds to a decoded packet.

    Forward error control coding
    68.
    发明授权
    Forward error control coding 有权

    公开(公告)号：US10886949B2

    公开(公告)日：2021-01-05

    申请号：US16292693

    申请日：2019-03-05

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mohamed Farouk Mansour ,  June Chul Roh ,  Srinath Hosur

    IPC: H03M13/00 ,  H03M13/29 ,  H03M13/27 ,  H03M13/09 ,  H03M13/15

    Abstract: Disclosed embodiments include a device having a transmitter circuit that includes an input to receive data blocks that are part of a set of incoming data, a parity bit generator to append a number of parity bits to each of the received data blocks, a first encoder to apply a first type of encoding to create first coded blocks based on the received data blocks and the parity bits, an interleaver to interleave symbols in the first coded blocks to create additional blocks having a block size, wherein the number of parity bits appended to each of the received blocks is based on the block size, and a second encoder to apply a second type of encoding to create an output based on the additional blocks, wherein the second type of encoding is different from the first type of encoding.

    NLOS WIRELESS BACKHAUL DOWNLINK COMMUNICATION
    69.
    发明申请
    NLOS WIRELESS BACKHAUL DOWNLINK COMMUNICATION 审中-公开

    公开(公告)号：US20190313403A1

    公开(公告)日：2019-10-10

    申请号：US16408590

    申请日：2019-05-10

    Applicant: Texas Instruments Incorporated

    Inventor： June Chul Roh ,  Pierre Bertrand ,  Srinath Hosur ,  Vijay Pothukuchi ,  Mohamed Farouk Mansour

    IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H03M13/00 ,  H03M13/15 ,  H03M13/29

    Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.

    FORWARD ERROR CONTROL CODING
    70.
    发明申请
    FORWARD ERROR CONTROL CODING 审中-公开

    公开(公告)号：US20190199378A1

    公开(公告)日：2019-06-27

    申请号：US16292693

    申请日：2019-03-05

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mohamed Farouk Mansour ,  June Chul Roh ,  Srinath Hosur

    IPC: H03M13/29 ,  H03M13/27

    CPC classification number: H03M13/2957 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2966 ,  H03M13/618

    Abstract: Disclosed embodiments include a device having a transmitter circuit that includes an input to receive data blocks that are part of a set of incoming data, a parity bit generator to append a number of parity bits to each of the received data blocks, a first encoder to apply a first type of encoding to create first coded blocks based on the received data blocks and the parity bits, an interleaver to interleave symbols in the first coded blocks to create additional blocks having a block size, wherein the number of parity bits appended to each of the received blocks is based on the block size, and a second encoder to apply a second type of encoding to create an output based on the additional blocks, wherein the second type of encoding is different from the first type of encoding.

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