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    Sleepy device operation in asynchronous channel hopping networks
    1.
    发明授权
    Sleepy device operation in asynchronous channel hopping networks 有权

    公开(公告)号：US11082086B2

    公开(公告)日：2021-08-03

    申请号：US16576345

    申请日：2019-09-19

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Robert Liang ,  Jyothsna Kunduru ,  Kwang Seop Eom

    IPC: H04W4/00 ,  H04B1/7156 ,  H04W4/80 ,  H04W52/02

    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.

    Sleepy device operation in asynchronous channel hopping networks
    3.
    发明授权
    Sleepy device operation in asynchronous channel hopping networks 有权

    公开(公告)号：US11637585B2

    公开(公告)日：2023-04-25

    申请号：US17356792

    申请日：2021-06-24

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Robert Liang ,  Jyothsna Kunduru ,  Kwang Seop Eom

    IPC: H04W4/00 ,  H04B1/7156 ,  H04W4/80 ,  H04W52/02

    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.

    Wireless network with channel hopping
    5.
    发明授权
    Wireless network with channel hopping 有权

    公开(公告)号：US11005523B2

    公开(公告)日：2021-05-11

    申请号：US16140028

    申请日：2018-09-24

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Kumaran Vijayasankar ,  Jyothsna Kunduru

    IPC: H04B1/00 ,  H04B1/7143 ,  H04B1/7156 ,  H04B1/7136

    Abstract: A wireless network with network-level channel hopping. A wireless network includes a wireless device. The wireless device includes a receiver, a data channel selector, and a transmitter. The receiver is configured to receive a beacon signal comprising a beacon sequence value. The data channel selector is configured to select, as a pseudorandom function of the beacon sequence value, a data channel on which to transmit in an interval following reception of the beacon signal. The transmitter is configured to transmit on the data channel selected by the channel selector.

    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS
    6.
    发明申请
    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS 审中-公开

    公开(公告)号：US20200014422A1

    公开(公告)日：2020-01-09

    申请号：US16576345

    申请日：2019-09-19

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Robert Liang ,  Jyothsna Kunduru ,  Kwang Seop Eom

    IPC: H04B1/7156 ,  H04W52/02

    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.

    Implicit exchange of channel information for un-slotted channel hopping networks
    7.
    发明授权
    Implicit exchange of channel information for un-slotted channel hopping networks 有权

    公开(公告)号：US10313991B2

    公开(公告)日：2019-06-04

    申请号：US15694196

    申请日：2017-09-01

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Arvind Kandhalu Raghu ,  Jyothsna Kunduru

    IPC: H04W56/00 ,  H04W72/04 ,  H04L12/26 ,  H04L5/00

    Abstract: A method of channel access for a radio device in an asynchronous channel hopping wireless network includes a channel hopping coordinator first radio device transmitting its receive (Rx) channel hopping sequence to a fixed or semi-channel hopping sleepy radio device. The sleepy radio device tracks the first radio device's Rx channel using the channel hopping sequence and transmits a poll frame exclusive of a unicast schedule information element (US-IE) on the first radio device's current Rx channel to the first radio device. The sleepy radio device moves to an updated Rx channel that is a function of the current Rx channel. The first radio device receives the poll frame and then computes the updated Rx channel as the function of the current Rx channel. After the computing, the first radio device transmits a data frame to the sleepy radio device on the updated Rx channel.

    Wireless network with channel hopping
    8.
    发明授权
    Wireless network with channel hopping 有权

    公开(公告)号：US12231160B2

    公开(公告)日：2025-02-18

    申请号：US18318035

    申请日：2023-05-16

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Kumaran Vijayasankar ,  Jyothsna Kunduru

    IPC: H04B1/00 ,  H04B1/7136 ,  H04B1/7143 ,  H04B1/7156

    Abstract: A wireless network with network-level channel hopping. A wireless network includes a wireless device. The wireless device includes a receiver, a data channel selector, and a transmitter. The receiver is configured to receive a beacon signal comprising a beacon sequence value. The data channel selector is configured to select, as a pseudorandom function of the beacon sequence value, a data channel on which to transmit in an interval following reception of the beacon signal. The transmitter is configured to transmit on the data channel selected by the channel selector.

    METHODS, APPARATUS, AND ARTICLES OF MANUFACTURE TO IMPROVE ONE-HOP EXTENSION IN WIRELESS BATTERY MANAGEMENT SYSTEMS
    10.
    发明公开
    METHODS, APPARATUS, AND ARTICLES OF MANUFACTURE TO IMPROVE ONE-HOP EXTENSION IN WIRELESS BATTERY MANAGEMENT SYSTEMS 审中-公开

    公开(公告)号：US20240142523A1

    公开(公告)日：2024-05-02

    申请号：US17977906

    申请日：2022-10-31

    Applicant: Texas Instruments Incorporated

    Inventor： Ariton Xhafa ,  Jyothsna Kunduru ,  Minghua Fu ,  Jonathan Nafziger

    IPC: G01R31/36

    CPC classification number: G01R31/36

    Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to improve one-hop extension in wireless battery management systems. An example apparatus is to cause transmission of an instruction to a first battery monitoring node (BMN) of a vehicle, the first BMN in communication with the apparatus the instruction to cause the first BMN to operate as a repeater for a second BMN of the vehicle, the second BMN noncommunicative with the apparatus. The example apparatus is to process an acknowledgement from the first BMN indicating that the first BMN has configured to operate as the repeater. Additionally, the example apparatus is to cause transmission of a communication to at least the first BMN indicating a time at which at least the first BMN is to perform a first action associated with a first battery and the second BMN is to perform a second action associated with a second battery.

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