公开(公告)号：US20240146686A1

公开(公告)日：2024-05-02

申请号：US18405504

申请日：2024-01-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04L61/5014 ,  H04L61/5092

CPC classification number: H04L61/5014 ,  H04L61/5092 ,  H04L61/5007

Abstract: A network includes at least two nodes that employ a routing protocol to communicate across a network. One of the nodes is a parent node and another of the nodes is a child node of the parent node. An address generator assigns a unique network address to the child node by appending an address value of a number of bits to a parent address of the parent node to create the unique network address for the child node.

公开(公告)号：US11700635B2

公开(公告)日：2023-07-11

申请号：US17396868

申请日：2021-08-09

Applicant: Texas Instruments Incorporated

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

IPC: H04W72/10 ,  H04W72/56

CPC classification number: H04W72/56 ,  Y02D30/70

Abstract: A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.

公开(公告)号：US11700577B2

公开(公告)日：2023-07-11

申请号：US17242872

申请日：2021-04-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  Y02D30/70

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：US11456772B2

公开(公告)日：2022-09-27

申请号：US17035891

申请日：2020-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04B1/00 ,  H04B1/7156 ,  H04L9/40 ,  H04L9/06 ,  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：US11329693B2

公开(公告)日：2022-05-10

申请号：US16823927

申请日：2020-03-19

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Gang Xu ,  Soon-Hyeok Choi ,  Bhadra Sandeep ,  Xiaolin Lu ,  Ariton E. Xhafa ,  Minghua Fu ,  Robert W. Liang ,  Susan Yim

IPC: H04B3/54 ,  H04B1/12 ,  H04B3/30 ,  H04B3/36 ,  H04B1/401

Abstract: An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium.

公开(公告)号：US20210368515A1

公开(公告)日：2021-11-25

申请号：US17396868

申请日：2021-08-09

Applicant: Texas Instruments Incorporated

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

IPC: H04W72/10

Abstract: A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.

公开(公告)号：US11089605B2

公开(公告)日：2021-08-10

申请号：US16557002

申请日：2019-08-30

Applicant: Texas Instruments Incorporated

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

IPC: H04W72/10

Abstract: A system and method for optimizing power consumption of energy harvesting nodes in a wireless sensor network. In one embodiment, a system includes a network coordinator. The network coordinator includes a wireless transceiver and a controller. The wireless transceiver is configured to provide access to the wireless sensor network. The controller is configured to determine whether a wireless device that is wirelessly communicating with the network coordinator is powered via energy harvesting. The controller is also configured to schedule, based on a determination that the wireless device is powered via energy harvesting, the wireless device to communicate via the wireless sensor network using a priority timeslot of a superframe of the wireless sensor network. The priority timeslot is a timeslot occurring in an initial portion of the superframe.

公开(公告)号：US20210028817A1

公开(公告)日：2021-01-28

申请号：US17035891

申请日：2020-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04B1/7156 ,  H04L9/06 ,  H04L29/06 ,  H04W12/00 ,  H04W12/04

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：US20200077418A1

公开(公告)日：2020-03-05

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: H04W72/12 ,  H04W4/80 ,  H04W84/18

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：US10375509B2

公开(公告)日：2019-08-06

申请号：US14060868

申请日：2013-10-23

Applicant: Texas Instruments Incorporated

Inventor： Deric W. Waters ,  Ariton E. Xhafa

IPC: H04W4/02 ,  G01S5/02 ,  H04W64/00 ,  G01S13/82

Abstract: Embodiments of the invention include a method for creating probe requests. The method is used when positioning is required. A short probe request is constructed with SSID set to GPS SSID_NAME. Another method continues after a short probe response is received. It is determined if a SSID of the probe response matches the SSID of the short probe request. If it does send an ACK.