公开(公告)号：US09008052B2

公开(公告)日：2015-04-14

申请号：US14037741

申请日：2013-09-26

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Ariton E. Xhafa ,  Xiaolin Lu ,  Josef Peery

IPC: H04W80/00 ,  H04W74/04 ,  H04W74/00

CPC classification number: H04W80/00 ,  H04W74/002 ,  H04W74/04

Abstract: A network includes an access point using a first protocol and a station using both the first protocol and a second protocol. The station uses the first protocol before a first threshold and a second protocol after the first threshold. A first duration between the second threshold and the first threshold is at least of sufficient length for the station to receive one data packet from the access point and send an acknowledgment. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted to the access point at a previous time.

Abstract translation: 网络包括使用第一协议的接入点和使用第一协议和第二协议的站。 该站在第一阈值之前使用第一协议，在第一阈值之后使用第二协议。 第二阈值与第一阈值之间的第一持续时间至少足够长，用于站从接入点接收一个数据分组并发送确认。 基站根据先前交换的成功或失败在当前交换中的当前时间向接入点发送当前清除发送的分组，在该交换过程中先前的发送分组被发送到接入点 以前的时间。

公开(公告)号：US08995380B2

公开(公告)日：2015-03-31

申请号：US13849015

申请日：2013-03-22

Applicant: Texas Instruments Incorporated

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

IPC: H04W4/00 ,  H04W72/04

CPC classification number: H04W72/0446

Abstract: Various techniques are disclosed for assigning timeslots in a multihop wireless network. One such method includes, for each node for uplink timeslot assignments, assigning a higher hop count node to a timeslot that is to occur before all time slots assigned to lower hop count nodes. The method further includes, for each node for downlink timeslot assignments, assigning a lower hop count node to a timeslot that is to occur before all time slots assigned to higher hop count nodes.

Abstract translation: 公开了用于在多跳无线网络中分配时隙的各种技术。 一种这样的方法包括对于每个节点进行上行链路时隙分配，将更高的跳数节点分配给将在分配给下一跳计数节点的所有时隙之前发生的时隙。 该方法还包括对于每个用于下行链路时隙分配的节点，将下一跳计数节点分配给将在分配给更高跳数节点的所有时隙之前发生的时隙。

公开(公告)号：US20150016393A1

公开(公告)日：2015-01-15

申请号：US14496923

申请日：2014-09-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W72/12

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide systems and methods to optimize the time when to receive transmissions from dissimilar wireless networks, and hence, improve the overall network throughput and avoid access point transmission rate fall-back mechanism having an avalanche effect during coexistence of dissimilar wireless network technologies. A receiver comprises at least two dissimilar network technology subsystems and is able to receive transmissions from dissimilar wireless network technology subsystems during a predetermined reception window.

Abstract translation: 实施例提供了用于优化从不同的无线网络接收传输的时间的系统和方法，并且因此提高了整体网络吞吐量，并且避免了在不同的无线网络技术共存期间具有雪崩效应的接入点传输速率下降机制。 接收机包括至少两个不同的网络技术子系统，并且能够在预定的接收窗口期间从不同的无线网络技术子系统接收传输。

公开(公告)号：US20140293984A1

公开(公告)日：2014-10-02

申请号：US14301656

申请日：2014-06-11

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W28/06 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04W28/065 ,  H04L1/1854 ,  H04W28/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

Abstract: A wireless combination (combo) device is coupled to an antenna for communicating via a first wireless network over a first band. A packet aggregator is coupled to the first wireless transceiver configures a frame aggregated packet for at least a portion of activities on the first wireless network. The frame aggregated packet includes a plurality of data packets and a dummy packet or spoofing so that said frame aggregated packet is extended in time or indicates an extension sufficient to overlap a Tx time interval or Rx time interval for communications occurring over a second wireless network. The first wireless network and said second wireless network are overlapping networks.

Abstract translation: 无线组合（组合）设备被耦合到天线，用于经由第一频带经由第一无线网络进行通信。 耦合到第一无线收发器的分组聚合器为第一无线网络上的活动的至少一部分配置帧聚合分组。 帧聚合分组包括多个数据分组和虚拟分组或欺骗，使得所述帧聚合分组在时间上被扩展或指示足以与通过第二无线网络发生的通信的Tx时间间隔或Rx时间间隔重叠的扩展。 第一无线网络和所述第二无线网络是重叠的网络。

公开(公告)号：US20140036877A1

公开(公告)日：2014-02-06

申请号：US13951839

申请日：2013-07-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04W72/10

CPC classification number: H04W72/10 ,  Y02D70/144 ,  Y02D70/22

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.

Abstract translation: 一种用于优化无线传感器网络中能量采集节点的功耗的系统和方法。 在一个实施例中，系统包括网络协调器。 网络协调器包括无线收发器和控制器。 无线收发器被配置为提供对无线传感器网络的访问。 控制器被配置为确定与网络协调器无线通信的无线设备是否通过能量收集来供电。 控制器还被配置为基于通过能量收集来确定无线设备被供电的调度，无线设备通过无线传感器网络的超帧的优先级时隙经由无线传感器网络进行通信。 优先级时隙是在超帧的初始部分中发生的时隙。

公开(公告)号：US20140029583A1

公开(公告)日：2014-01-30

申请号：US13748083

申请日：2013-01-23

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W88/06

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide systems and methods to optimize the time when to transmit a silencing frame, and hence, improve the overall network throughput and avoid access point transmission rate fall-back mechanism having an avalanche effect during coexistence of dissimilar wireless network technologies. A device comprises at least two dissimilar network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems. In some embodiments, a device is able to transmit a silencing frame during a transmission window within a lower priority technology network interval. In other embodiments, a device calculates a transmission window, the transmission window to occur within a lower priority technology network interval, and transmits a silencing frame during the transmission window. In further embodiments, a device is able to calculate a transmission window to occur during a lower priority technology network interval, and transmit a silencing frame during the calculated transmission window.

Abstract translation: 实施例提供了用于优化传输消音帧的时间的系统和方法，从而提高整体网络吞吐量，并避免在不同的无线网络技术共存期间具有雪崩效应的接入点传输速率回退机制。 一种设备包括至少两个不同的网络技术子系统，其至少一个子系统的优先级低于至少另一个不同子系统。 在一些实施例中，设备能够在较低优先级技术网络间隔内的传输窗口期间传输消音帧。 在其他实施例中，设备计算发送窗口，发送窗口发生在较低优先级的技术网络间隔内，并且在发送窗口期间发送消音帧。 在另外的实施例中，设备能够计算在较低优先级技术网络间隔期间发生的传输窗口，并且在计算的传输窗口期间传送消音帧。

公开(公告)号：US20140023058A1

公开(公告)日：2014-01-23

申请号：US14037741

申请日：2013-09-26

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Ariton E. Xhafa ,  Xiaolin Lu ,  Josef Peery

IPC: H04W80/00

CPC classification number: H04W80/00 ,  H04W74/002 ,  H04W74/04

Abstract: A network includes an access point using a first protocol and a station using both the first protocol and a second protocol. The station uses the first protocol before a first threshold and a second protocol after the first threshold. A first duration between the second threshold and the first threshold is at least of sufficient length for the station to receive one data packet from the access point and send an acknowledgment. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted to the access point at a previous time.

Abstract translation: 网络包括使用第一协议的接入点和使用第一协议和第二协议的站。 该站在第一阈值之前使用第一协议，在第一阈值之后使用第二协议。 第二阈值与第一阈值之间的第一持续时间至少足够长，用于站从接入点接收一个数据分组并发送确认。 基站根据先前交换的成功或失败在当前交换中的当前时间向接入点发送当前清除发送的分组，在该交换过程中先前的发送分组被发送到接入点 以前的时间。

公开(公告)号：US20130301453A1

公开(公告)日：2013-11-14

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: 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。