公开(公告)号：US10512097B2

公开(公告)日：2019-12-17

申请号：US16024039

申请日：2018-06-29

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Soon-Hyeok Choi ,  Srinath Hosur ,  Yanjun Sun

IPC: 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：US20190200161A9

公开(公告)日：2019-06-27

申请号：US14060868

申请日：2013-10-23

Applicant: Texas Instruments Incorporated

Inventor： Deric W. Waters ,  Ariton E. Xhafa

IPC: H04W4/02

CPC classification number: H04W4/02 ,  G01S5/0242 ,  G01S13/82 ,  H04W64/00

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.

公开(公告)号：US09867130B2

公开(公告)日：2018-01-09

申请号：US15019721

申请日：2016-02-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Baher Haroun

IPC: H04W52/02 ,  H04W56/00

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W52/0229 ,  H04W56/001 ,  Y02B70/30 ,  Y02D70/144

Abstract: A time slot assignment arrangement for ultralow power devices in a wireless communication network is disclosed. The time slot assigned to ultralow power device wakeup frame is identified as ultralow power timeslot using various indicators. The ultralow power timeslot is assigned as contention based timeslot allowing ultralow power devices in the wireless network to extend the interval for synchronizing with the network overcoming the short synchronization interval requirements of wireless communication network resulting in significant improvement in battery life by preserving the power needed for frequent synchronization with the wireless communication network.

公开(公告)号：US09614579B2

公开(公告)日：2017-04-04

申请号：US14813093

申请日：2015-07-29

Applicant: Texas Instruments Incorporated

Inventor： Chao-Fang Shih ,  Ariton E. Xhafa ,  Jianwei Zhou

IPC: H04B1/7143 ,  H04B1/715

CPC classification number: H04B1/7143 ,  H04B1/715 ,  H04B2001/7154

Abstract: A device operated in a network using a channel hopping communication protocol may select a channel for each transmission by first generating and storing a sequence of pseudo-random index numbers. A list of good channels is selected from a plurality of channels. For each channel hop, one of the good channels is selected from the list of good channels for use by a transceiver in the device by using an index number selected from the sequence of pseudo-random index numbers. The list of good channels may be revised periodically and channels may be selected from the list of good channels for use by the transceiver without revising the sequence of pseudo-random index numbers.

公开(公告)号：US09565689B2

公开(公告)日：2017-02-07

申请号：US14522153

申请日：2014-10-23

Applicant: Texas Instruments Incorporated

Inventor： Arvind Kandhalu Raghu ,  Ariton E. Xhafa

IPC: H04W72/08 ,  H04L12/927 ,  H04W28/24 ,  H04W24/02 ,  H04L12/729 ,  H04W40/12 ,  H04L12/725

CPC classification number: H04W72/087 ,  H04L45/125 ,  H04L45/302 ,  H04L47/805 ,  H04W24/02 ,  H04W28/24 ,  H04W40/12

Abstract: Embodiments of the invention provide a method for performing network resource allocation over hybrid networks so that application QoS requirements are met. The hybrid networks are represented as an undirected weighted graph with the communication links as edges irrespective of the communication medium. A QoS-based resource allocation model. Another embodiment further includes utility functions that capture the QoS attributes such as reliability, timeliness, fault-tolerance and lifetime allows determining routes and bandwidth allocation such that the total system utility across the entire network is maximized.

Abstract translation: 本发明的实施例提供了一种用于在混合网络上执行网络资源分配以满足应用QoS要求的方法。 混合网络被表示为无向加权图，其中通信链路作为边缘而不考虑通信介质。 基于QoS的资源分配模型。 另一个实施例还包括效用函数，其捕获诸如可靠性，及时性，容错性和寿命的QoS属性，从而允许确定路由和带宽分配，使得跨整个网络的总体系统效用最大化。

公开(公告)号：US20160278079A1

公开(公告)日：2016-09-22

申请号：US14663270

申请日：2015-03-19

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Jianwei Zhou ,  Arvind Kandhalu Raghu ,  Ryan Nuzzaci

IPC: H04W72/04 ,  H04W4/00

CPC classification number: H04W4/70 ,  H04L12/44 ,  H04L41/0886 ,  H04W48/16 ,  H04W72/0446 ,  H04W74/02 ,  H04W84/18

Abstract: A method of transmitting association requests in a wireless sensor network includes transmitting an association request from a leaf node to an intermediate node. The method further includes transmitting the association request from the intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of dedicated time slots and data collision rates during shared time slots.

Abstract translation: 在无线传感器网络中发送关联请求的方法包括：从叶节点向中间节点发送关联请求。 响应于在共享时隙期间的专用时隙的定时和数据冲突率中的至少一个，该方法还包括在共享时隙或专用时隙之一期间从中间节点发送关联请求。

公开(公告)号：US20160088517A1

公开(公告)日：2016-03-24

申请号：US14836655

申请日：2015-08-26

Applicant: Texas Instruments Incorporated

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

IPC: H04W28/06 ,  H04L29/12 ,  H04W4/18

CPC classification number: H04W4/18 ,  H04L61/103 ,  H04L61/6004 ,  H04L61/6059 ,  H04L61/6072 ,  H04L61/6081 ,  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.

Abstract translation: 提供一种用于在无线传感器网络中管理因特网协议版本6（IPv6）地址的方法，其包括在无线传感器网络中的无线传感器设备上存储与密钥相关联的IPv6地址的前缀，形成地址指示符 对于IPv6地址，地址指示符由密钥和IPv6地址的节点地址组成，并将地址指示符存储在无线传感器设备上的至少一个存储器位置中，代替IPv6地址。

公开(公告)号：US09203551B2

公开(公告)日：2015-12-01

申请号：US13891943

申请日：2013-05-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Soon-Hyeok Choi ,  Yanjun Sun ,  Leonardo William Estevez

IPC: H04L12/26 ,  H04L1/00

CPC classification number: H04L1/0007 ,  H04W24/08 ,  Y02D70/00

Abstract: A wireless device that tailors communications based on power parameters of the device. In one embodiment, a wireless device includes an energy source, a power monitor coupled to the energy source, a wireless transceiver, and a traffic controller coupled to the power monitor and the wireless transceiver. The power monitor is configured to measure a parameter of the energy source. The wireless transceiver is configured to wirelessly communicate via a wireless network. The traffic controller is configured to set length of packets to be transmitted based on the measured parameter of the energy source.

Abstract translation: 基于设备的功率参数调整通信的无线设备。 在一个实施例中，无线设备包括能量源，耦合到能量源的功率监视器，无线收发器和耦合到功率监视器和无线收发器的业务控制器。 功率监视器被配置为测量能量的参数。 无线收发器被配置为经由无线网络进行无线通信。 流量控制器被配置为基于能量源的测量参数来设置要发送的分组的长度。

公开(公告)号：US09172517B2

公开(公告)日：2015-10-27

申请号：US14280232

申请日：2014-05-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: G08C17/00 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W52/02 ,  H04L5/0053 ,  H04L67/12 ,  H04W52/0219 ,  Y02D70/00 ,  Y02D70/144

Abstract: A device and method for controlling radio power in a wireless sensor network. A wireless sensor device includes a wireless transceiver, a white list generator, and power control logic. The wireless transceiver is configured to transmit and receive via a wireless sensor network. The white list generator configured to identify wireless sensor nodes that communicate directly with the wireless sensor device via the wireless sensor network, to identify time slots assigned for communication between the wireless sensor device and each of the identified wireless sensor nodes, and to create and maintain a list of the identified wireless sensor nodes and corresponding time slots. The power control logic is configured to power the transceiver for reception of transmissions from each identified wireless sensor node based on the identified time slots corresponding to the identified wireless sensor node provided in the list.

Abstract translation: 一种用于控制无线传感器网络中的无线电功率的装置和方法。 无线传感器装置包括无线收发器，白名单发生器和功率控制逻辑。 无线收发器经配置以经由无线传感器网络进行发送和接收。 白名单发生器被配置为识别经由无线传感器网络与无线传感器设备直接通信的无线传感器节点，以识别为无线传感器设备和每个识别的无线传感器节点之间的通信分配的时隙，并且创建和维护 所识别的无线传感器节点和对应时隙的列表。 功率控制逻辑被配置为基于与列表中提供的所识别的无线传感器节点相对应的所识别的时隙来为收发信机供电以接收来自每个识别的无线传感器节点的传输。

公开(公告)号：US20140036751A1

公开(公告)日：2014-02-06

申请号：US13951798

申请日：2013-07-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  Y02D70/144 ,  Y02D70/22

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.

Abstract translation: 一种降低无线网络能耗的系统和方法。 在一个实施例中，系统包括被配置为管理对无线网络的接入的网络协调器。 网络协调器包括一个控制器。 控制器被配置为定义信道跳频列表，其指定在无线网络的每个时隙帧中在哪个信道上发送信标信号。 控制器还被配置为基于信道跳频列表的长度来设置每个时隙帧中的多个时隙。 控制器还被配置为在由信道跳频列表指定的信道上的每个时隙帧中发送第一信标信号。 每个时隙帧中的时隙数使得在每个时隙帧中在同一信道上发送第一信标信号。