公开(公告)号：US20230327705A1

公开(公告)日：2023-10-12

申请号：US18333659

申请日：2023-06-13

Applicant: Texas Instruments Incorporated

Inventor： Kumaran VIJAYASANKAR ,  Ramanuja VEDANTHAM ,  Tarkesh PANDE

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5433 ,  H04B2203/5445

Abstract: Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together.

公开(公告)号：US20230291435A1

公开(公告)日：2023-09-14

申请号：US18318035

申请日：2023-05-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Jyothsna KUNDURU

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

CPC classification number: H04B1/7143 ,  H04B1/7156 ,  H04B1/7136 ,  H04B2001/71563 ,  H04B2001/71367

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.

公开(公告)号：US20200212957A1

公开(公告)日：2020-07-02

申请号：US16813937

申请日：2020-03-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Timothy SCHMIDL ,  Ramanuja VEDANTHAM

IPC: H04B1/7143

Abstract: A system and method for enhanced channel hopping sequence is described. A pseudo random channel hopping sequence is redistributed using certain system specific parameters for separating adjacent transmission channels within a predetermined number of consecutive transmission channel numbers in the random channel hopping sequence to improve inter-channel interference between adjacent transmission channels.

公开(公告)号：US20240056999A1

公开(公告)日：2024-02-15

申请号：US18493565

申请日：2023-10-24

Applicant: Texas Instruments Incorporated

Inventor： Kumaran VIJAYASANKAR ,  Wonsoo KIM

IPC: H04W56/00

CPC classification number: H04W56/0015 ,  H04W56/0005

Abstract: In examples, an electronic device comprises a transceiver and a processor coupled to the transceiver. The processor is configured to synchronize a clock of the electronic device to a clock of another electronic device using elapsed time indications in multiple packets received from the another electronic device via the transceiver. The processor is configured to transmit a packet via the transceiver using the synchronized clock of the electronic device.

公开(公告)号：US20240040412A1

公开(公告)日：2024-02-01

申请号：US18482775

申请日：2023-10-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Arvind KANDHALU RAGHU ,  Jyothsna KUNDURU

IPC: H04W24/08 ,  H04W16/14

CPC classification number: H04W24/08 ,  H04W16/14

Abstract: In some examples, a device includes receiver circuitry and processing circuitry coupled to the receiver circuitry. In examples, the processing circuitry is configured to transition, at a first time, from monitoring a first channel via the receiver circuitry to monitoring a second channel via the receiver circuitry, wherein the first channel is associated with a first communication protocol and the second channel is associated with a second communication protocol. In examples, the processing circuitry is also configured to transition, at a second time, from monitoring the second channel via the receiver circuitry to monitoring the first channel via the receiver circuitry responsive to not detecting communication on the second channel, wherein an amount of time between the first time and the second time is based on a detection time for the second communication protocol.

公开(公告)号：US20210194541A1

公开(公告)日：2021-06-24

申请号：US17119831

申请日：2020-12-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Ramanuja VEDANTHAM ,  Tarkesh PANDE

IPC: H04B3/54

Abstract: Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together.

公开(公告)号：US20240031293A1

公开(公告)日：2024-01-25

申请号：US18479914

申请日：2023-10-03

Applicant: Texas Instruments Incorporated

Inventor： Kumaran VIJAYASANKAR ,  Suyash JAIN

IPC: H04L47/127 ,  H04L43/0882

CPC classification number: H04L47/127 ,  H04L43/0882

Abstract: Aspects of the disclosure provide for a computer program product comprising computer executable instructions. The instructions are executable by a controller of a network device to cause the controller to analyze data transmitted by the network device via a network for a programmed amount of time, determine a data transmission pattern based on the analysis, determine, based on the transmission pattern, a volume of expected data transmission during a period of time, and determine whether to transmit additional data based on a relationship between the volume of expected data transmission during the period of time and a bandwidth allocation of the network device during the period of time.

公开(公告)号：US20210266034A1

公开(公告)日：2021-08-26

申请号：US17316789

申请日：2021-05-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Timothy SCHMIDL ,  Ramanuja VEDANTHAM

IPC: H04B1/7143

Abstract: A system and method for enhanced channel hopping sequence is described. A pseudo random channel hopping sequence is redistributed using certain system specific parameters for separating adjacent transmission channels within a predetermined number of consecutive transmission channel numbers in the random channel hopping sequence to improve inter-channel interference between adjacent transmission channels.

公开(公告)号：US20200169293A1

公开(公告)日：2020-05-28

申请号：US16776681

申请日：2020-01-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Ramachandran ANANTHAKRISHNAN ,  Susan YIM

IPC: H04B3/54

Abstract: Systems and methods for efficiently allocating beacon slot among multiple nodes on multiple levels within a power line communication network are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, by a communications device, assigning beacon transmission times to nodes within the communication device's network. The assigned beacon transmission times comprise a beacon slot and frame pattern. The beacon slot and frame pattern ensure that each node does not transmit a beacon in a beacon slot that is adjacent to a beacon slot assigned to a parent or child node. A beacon transmission slot is reserved for a base node in every frame. The frames may be organized into thirty-two-frame superframes, wherein each frame comprises a base node beacon slot and four switch node beacon slots.

公开(公告)号：US20180241432A1

公开(公告)日：2018-08-23

申请号：US15898923

申请日：2018-02-19

Applicant: Texas Instruments Incorporated

Inventor： Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Ramachandran ANANTHAKRISHNAN ,  Susan YIM

IPC: H04B3/54

CPC classification number: H04B3/542 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5433

Abstract: Systems and methods for efficiently allocating beacon slot among multiple nodes on multiple levels within a power line communication network are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, by a communications device, assigning beacon transmission times to nodes within the communication device's network. The assigned beacon transmission times comprise a beacon slot and frame pattern. The beacon slot and frame pattern ensure that each node does not transmit a beacon in a beacon slot that is adjacent to a beacon slot assigned to a parent or child node. A beacon transmission slot is reserved for a base node in every frame. The frames may be organized into thirty-two-frame superframes, wherein each frame comprises a base node beacon slot and four switch node beacon slots.