公开(公告)号：US12261737B2

公开(公告)日：2025-03-25

申请号：US17563993

申请日：2021-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Alexis Justine Burnight ,  Ariton E. Xhafa ,  Minghua Fu ,  Vishal Coelho ,  Caleb Jackson Overbay

IPC: H04L41/0803 ,  H04W8/00 ,  H04W84/18

Abstract: A method includes determining by a primary node a network formation process to establish a network with a secondary node according to a network condition of the primary node and the secondary node, the secondary node previously paired to the primary node in a previously established network connection between the primary node and the secondary node, performing by the primary node a scanning phase as part of the network formation process with the secondary node according to network configuration information stored by the primary node and the secondary node and obtained by the primary node and the secondary node in the previously established network connection; and skipping by the primary node a pairing phase of the network formation process with the secondary node responsive to the secondary node being previously paired to the primary node in the previously established network connection.

公开(公告)号：US12231161B2

公开(公告)日：2025-02-18

申请号：US17524505

申请日：2021-11-11

Applicant: Texas Instruments Incorporated

Inventor： Alexis Justine Burnight ,  Ariton E. Xhafa ,  Ramanuja Vedantham ,  Jesus Daniel Torres Bardales ,  Vishal Coelho

IPC: H04B1/7156 ,  H04B1/3805 ,  H04W72/0453

Abstract: A communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless transceiver and a secondary wireless transceiver. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless transceiver and the secondary wireless transceiver. The communication circuit further includes resynchronization circuitry configured to resynchronize the secondary wireless transceiver with the established wireless network within a target time interval.

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.

公开(公告)号：US12108246B2

公开(公告)日：2024-10-01

申请号：US17314865

申请日：2021-05-07

Applicant: Texas Instruments Incorporated

Inventor： Archanaa Santhana Krishnan ,  Alexis Justine Burnight ,  Ariton E. Xhafa

IPC: H04W12/04 ,  H04W12/041 ,  H04W12/0471

CPC classification number: H04W12/041 ,  H04W12/0471

Abstract: A wireless interface includes: network formation circuitry configured to establish a wireless network between a primary node and a secondary node; data exchange circuitry configured to perform data exchanges between the primary node and the secondary node using secure sessions; and key refreshment circuitry configured to derive a new network key for the network based on a pre-shared key and a current network key concatenated with a session count. The new key is derived during at least one of the secure sessions.

公开(公告)号：US11991616B2

公开(公告)日：2024-05-21

申请号：US18064636

申请日：2022-12-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Jianwei Zhou ,  Xiaolin Lu

IPC: H04W40/24 ,  H04B1/7156 ,  H04L45/02 ,  H04W84/18 ,  H04W84/20

CPC classification number: H04W40/248 ,  H04B2001/71563 ,  H04L45/026 ,  H04W84/18 ,  H04W84/20

Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.

公开(公告)号：US20230336209A1

公开(公告)日：2023-10-19

申请号：US17952551

申请日：2022-09-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Xiaolin Lu ,  Janwei Zhou ,  Il Han Kim

IPC: H04B1/7156 ,  H04L9/40 ,  H04L9/06 ,  H04W12/037 ,  H04W12/0471

CPC classification number: H04B1/7156 ,  H04L63/061 ,  H04L9/0631 ,  H04L63/0442 ,  H04L63/0823 ,  H04W12/037 ,  H04W12/0471 ,  H04B1/713

Abstract: A network includes a first wireless node that communicates over a wireless network connection. The first wireless node includes a first encryption engine that processes a first initialization data set and a current transmit sequence associated with a current communication to generate a next transmit sequence that is employed to communicate with a second wireless node that derives a next received sequence that corresponds to the next transmit sequence to process a subsequent communication.

公开(公告)号：US11689900B2

公开(公告)日：2023-06-27

申请号：US17330715

申请日：2021-05-26

Applicant: Texas Instruments Incorporated

Inventor： Alper Sinan Akyurek ,  Ariton E. Xhafa ,  Jianwei Zhou ,  Ramanuja Vedantham

IPC: H04W4/18 ,  H04L61/103 ,  H04W84/18 ,  H04L101/659 ,  H04L101/672 ,  H04L101/681 ,  H04L101/604

CPC classification number: H04W4/18 ,  H04L61/103 ,  H04L2101/604 ,  H04L2101/659 ,  H04L2101/672 ,  H04L2101/681 ,  H04W84/18

Abstract: A method for managing Internet Protocol Version 6 (IPv6) addresses in a wireless sensor network is provided that includes storing, on a wireless sensor device in the wireless sensor network, a prefix of an IPv6 address in association with a key, forming an address indicator for the IPv6 address, the address indicator consisting of the key and a node address of the IPv6 address, and storing the address indicator in at least one memory location on the wireless sensor device in lieu of the IPv6 address.

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).

公开(公告)号：US11528653B2

公开(公告)日：2022-12-13

申请号：US16864405

申请日：2020-05-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Jianwei Zhou ,  Xiaolin Lu

IPC: H04W40/24 ,  H04L45/02 ,  H04W84/18 ,  H04B1/7156 ,  H04W84/20

Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.

公开(公告)号：US20210378002A1

公开(公告)日：2021-12-02

申请号：US17402688

申请日：2021-08-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Arvind K. Raghu ,  Ariton E. Xhafa ,  Ramanuja Vedantham ,  Xiaolin Lu

IPC: H04W72/12

Abstract: A network includes a parent node and at least one child node configured to communicate with the parent node via a wireless network protocol. The parent node includes a broadcast coordinator to transmit a broadcast message from the parent node to the child node at predetermined time intervals according to the wireless network protocol. A scheduler generates a scheduling packet that is communicated in the broadcast message. The scheduling packet includes a data field to instruct each child node to activate and receive data communicated from the parent node in a prescribed time slot following the broadcast message that is defined by the scheduling packet.