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    Implicit exchange of channel information for un-slotted channel hopping networks
    12.
    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.

    Slot Skipping Techniques for Reduced Power Consumption in Time Slotted Channel Hopping MAC Protocol
    15.
    发明申请
    Slot Skipping Techniques for Reduced Power Consumption in Time Slotted Channel Hopping MAC Protocol 有权
    时隙跳频技术，用于降低时间上的功率消耗

    公开(公告)号：US20160037449A1

    公开(公告)日：2016-02-04

    申请号：US14751602

    申请日：2015-06-26

    Applicant: Texas Instruments Incorporated

    Inventor： Arvind Kandhalu Raghu ,  Ariton E. Xhafa ,  Jianwei Zhou ,  Ramanuja Vedantham ,  Xiaolin Lu

    IPC: H04W52/02 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

    CPC classification number: H04W52/0209 ,  H04L5/0048 ,  H04W48/00 ,  H04W56/001 ,  H04W72/12 ,  H04W84/10 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

    Abstract: A device may be coupled to a time slot based communication system and receive a timing beacon packet that is broadcast in a time slot of the communication system at a periodic rate, in which the network uses a time slotted channel hopping protocol of sequential frames each having a plurality of time slots. The device may synchronize its time base to the timing beacon. The device may calculate a sleep time corresponding to a number of time slots until a next time slot that is scheduled for use by the device and then place the device in a sleep mode. The device may be awakened after the sleep time and operate during the next time slot. The device may repeat the process of calculating a sleep time, going into sleep mode, and waking for operation after the sleep time in order to reduce power consumption.

    Abstract translation: 设备可以耦合到基于时隙的通信系统，并且以周期速率接收在通信系统的时隙中广播的定时信标分组，其中网络使用具有连续帧的时隙信道跳频协议，每个时隙信道分组具有 多个时隙。 设备可以将其时基同步到定时信标。 设备可以计算对应于多个时隙的休眠时间，直到调度供设备使用的下一个时隙，然后将设备置于睡眠模式。 睡眠时间后可能会唤醒设备，并在下一个时间段内进行操作。 该装置可以重复计算休眠时间，进入睡眠模式，以及在休眠时间之后唤醒操作以减少功耗的过程。

    Event clustering for BLE-Mesh devices
    16.
    发明授权
    Event clustering for BLE-Mesh devices 有权

    公开(公告)号：US11997576B2

    公开(公告)日：2024-05-28

    申请号：US18152940

    申请日：2023-01-11

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Arvind Kandhalu Raghu ,  Mehul Soman

    IPC: H04W4/00 ,  H04W4/80 ,  H04W76/10 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

    CPC classification number: H04W4/80 ,  H04W76/10 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

    Abstract: A method of BLE-Mesh communications includes providing a dual-mode BLE-Mesh device including dual-mode RF driver, dual-mode manager, a BLE stack for BLE operations. and a mesh stack for mesh operations in a BLE-mesh network having a BLE relay device and a functional end BLE device. The BLE-mesh device has a periodic set of time indexed data slots common throughout the BLE-mesh network which provides a BLE event timeline for BLE connection events. The dual-mode BLE device implements an event clustering algorithm that delays or advances mesh events with respect to a timing the BLE connection events for clustering together their respective occurrences into continuous BLE/Mesh events to reduce a duty cycle by reducing a number of transitions from active mode to sleep mode and from sleep mode to active mode. The BLE-Mesh device communicates in the BLE-mesh network using the continuous BLE/Mesh events with at least one mesh device.

    Concurrent use of multiple protocols on a single radio
    19.
    发明授权
    Concurrent use of multiple protocols on a single radio 有权

    公开(公告)号：US11219039B2

    公开(公告)日：2022-01-04

    申请号：US16101121

    申请日：2018-08-10

    Applicant: Texas Instruments Incorporated

    Inventor： Arvind Kandhalu Raghu ,  Antony James Cave ,  Ramanuja Vedantham ,  Xiaoxi Bruce Zhang

    IPC: H04B7/00 ,  H04W72/12 ,  H04L12/865 ,  H04L29/06 ,  H04W4/80

    Abstract: A method for concurrent execution of multiple protocols using a single radio of a wireless communication device is provided that includes receiving, in a radio command scheduler, a first radio command from a first protocol stack of a plurality of protocol states executing on the wireless communication device, determining a scheduling policy for the first radio command based on a current state of each protocol stack of the plurality of protocol stacks, and scheduling the first radio command in a radio command queue for the radio based on the scheduling policy, wherein the radio command scheduler uses the radio command queue to schedule radio commands received from the plurality of protocol stacks.

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