Timing re-synchronization with reduced communication energy in frequency hopping communication networks
    21.
    发明授权
    Timing re-synchronization with reduced communication energy in frequency hopping communication networks 有权
    定时重新同步,减少跳频通信网络中的通信能量

    公开(公告)号:US08619789B2

    公开(公告)日:2013-12-31

    申请号:US13180908

    申请日:2011-07-12

    CPC classification number: H04W52/0209 H04B1/7156 H04W56/00

    Abstract: In one embodiment, a battery-operated communication device “quick-samples” a frequency hopping sequence at a periodic rate corresponding to a substantially low duty cycle, and is discovered by (e.g., attached to) a main-powered communication device. During a scheduled sample, the main-powered communication device transmits a control packet to be received by the battery-operated communication device, the control packet containing timing information and transmitted to account for worst-case clock drift error between the two devices. The battery-operated communication device responds to the control packet with a link-layer acknowledgment containing timing information from the battery-operated communication device. Accordingly, the two devices may re-synchronize their timing based on the timing information in the control packet and acknowledgment, respectively.

    Abstract translation: 在一个实施例中,电池供电的通信设备以对应于基本上较低占空比的周期性速率“跳频”跳频序列,并且通过(例如附接到)主供电通信设备来发现。 在预定采样期间,主供电通信设备发送由电池供电的通信设备接收的控制分组,该控制分组包含定时信息,并且被传送以考虑两个设备之间的最坏情况时钟漂移误差。 电池供电的通信设备用包含来自电池供电通信设备的定时信息的链路层确认来响应控制分组。 因此,两个设备可以分别基于控制分组和确认中的定时信息重新同步其定时。

    ON-DEMAND PAIR-WISE FREQUENCY-HOPPING SYNCHRONIZATION
    22.
    发明申请
    ON-DEMAND PAIR-WISE FREQUENCY-HOPPING SYNCHRONIZATION 有权
    需求配对频率同步同步

    公开(公告)号:US20130279540A1

    公开(公告)日:2013-10-24

    申请号:US13566875

    申请日:2012-08-03

    Abstract: In one embodiment, a device receives and stores a broadcast schedule, and may determine whether a neighbor unicast listening schedule is available for a neighboring device. If so, the device may transmit a data frame to the neighboring device pursuant to the neighbor unicast listening schedule. If a neighbor unicast listening schedule is not available, the device may transmit the data frame to the neighboring device pursuant to a broadcast schedule. Once the data frame is received by the neighboring device, pursuant to the neighbor unicast listening schedule or the broadcast schedule, an acknowledgement may be received from the neighboring device, which may include an updated neighbor unicast listening schedule for that neighboring device.

    Abstract translation: 在一个实施例中,设备接收并存储广播调度,并且可以确定邻居单播监听调度是否可用于相邻设备。 如果是,则设备可以根据邻居单播监听时间表向相邻设备发送数据帧。 如果邻居单播监听调度不可用,则设备可以根据广播时间表将数据帧发送到相邻设备。 一旦相邻设备接收到数据帧,根据邻居单播监听调度或广播调度,可以从相邻设备接收确认,该确认可以包括该相邻设备的更新的邻居单播监听调度。

    COLLECTING POWER OUTAGE NOTIFICATIONS IN A FREQUENCY HOPPING COMMUNICATION NETWORK
    23.
    发明申请
    COLLECTING POWER OUTAGE NOTIFICATIONS IN A FREQUENCY HOPPING COMMUNICATION NETWORK 有权
    收集频率通信网络中的功率失效通知

    公开(公告)号:US20130028295A1

    公开(公告)日:2013-01-31

    申请号:US13192802

    申请日:2011-07-28

    CPC classification number: H04B1/713

    Abstract: In one embodiment, a device in a frequency hopping communication network operate in a first mode according to a common broadcast schedule for the network that simultaneously overlays a first configured portion of all independently determined unicast listening schedules in the network. In response to determining a power outage condition, the device switches to operation in a power outage mode where the common broadcast schedule for the network in the power outage mode simultaneously overlays a second configured portion of all independently determined unicast listening schedules in the network, the second configured portion greater than the first configured portion. In one embodiment, the device broadcasts one or more power outage notifications (PONs) in response to determining the power outage condition as a reduction of a main power supply at the device. In another embodiment, the device receives a PON while powered as the power outage condition.

    Abstract translation: 在一个实施例中,跳频​​通信网络中的设备根据网络的公共广播调度以第一模式操作,该网络同时覆盖网络中所有独立确定的单播监听时间表的第一配置部分。 响应于确定停电状况,设备切换到停电模式中的操作,其中停电模式下的网络的公共广播调度同时覆盖网络中所有独立确定的单播监听时间表的第二配置部分, 第二构造部分大于第一构造部分。 在一个实施例中,响应于将停电状况确定为设备上的主电源的减少,设备广播一个或多个断电通知(PON)。 在另一个实施例中,设备在停电状态下被接通时接收PON。

    POWER CONSERVATION AND LATENCY MINIMIZATION IN FREQUENCY HOPPING COMMUNICATION NETWORKS
    24.
    发明申请
    POWER CONSERVATION AND LATENCY MINIMIZATION IN FREQUENCY HOPPING COMMUNICATION NETWORKS 有权
    频率通信网络中的功率节省和最小化

    公开(公告)号:US20130016759A1

    公开(公告)日:2013-01-17

    申请号:US13180853

    申请日:2011-07-12

    CPC classification number: H04B1/713

    Abstract: In one embodiment, a communication device samples a particular frequency hopping sequence during only a particular specified sub-timeslot of a timeslot. If a transmission energy is not detected during the specified sub-timeslot, the device turns off its receiver for a remainder of the timeslot. Otherwise, it continues to sample the particular frequency hopping sequence for at least one or more additional sub-timeslots of the remainder of the timeslot. In another embodiment, a communication device determines whether a neighboring communication device is operating in a first mode or a second mode. If in the second mode, it transmits a transmission to the neighboring communication device starting at any sub-timeslot of the plurality of sub-timeslots. If in the first mode, it transmits the transmission to the neighboring communication device while ensuring that the transmission is actively energized during a particular specified sub-timeslot.

    Abstract translation: 在一个实施例中,通信设备仅在时隙的特定指定子时隙中采样特定的跳频序列。 如果在指定的子时隙期间未检测到传输能量,则该设备在时隙的剩余时间内关闭其接收机。 否则,它继续针对时隙的其余部分的至少一个或多个附加子时隙对特定跳频序列进行采样。 在另一个实施例中,通信设备确定相邻通信设备是否在第一模式或第二模式中操作。 如果在第二模式中,则从多个子时隙的任何子时隙开始向相邻通信设备发送传输。 如果在第一模式中,则将传输发送到相邻通信设备,同时确保在特定指定子时隙期间传输被激活。

    TIMING RE-SYNCHRONIZATION WITH REDUCED COMMUNICATION ENERGY IN FREQUENCY HOPPING COMMUNICATION NETWORKS
    25.
    发明申请
    TIMING RE-SYNCHRONIZATION WITH REDUCED COMMUNICATION ENERGY IN FREQUENCY HOPPING COMMUNICATION NETWORKS 有权
    频率通信网络中减少通信能量的定时重新同步

    公开(公告)号:US20130016757A1

    公开(公告)日:2013-01-17

    申请号:US13180908

    申请日:2011-07-12

    CPC classification number: H04W52/0209 H04B1/7156 H04W56/00

    Abstract: In one embodiment, a battery-operated communication device “quick-samples” a frequency hopping sequence at a periodic rate corresponding to a substantially low duty cycle, and is discovered by (e.g., attached to) a main-powered communication device. During a scheduled sample, the main-powered communication device transmits a control packet to be received by the battery-operated communication device, the control packet containing timing information and transmitted to account for worst-case clock drift error between the two devices. The battery-operated communication device responds to the control packet with a link-layer acknowledgment containing timing information from the battery-operated communication device. Accordingly, the two devices may re-synchronize their timing based on the timing information in the control packet and acknowledgment, respectively.

    Abstract translation: 在一个实施例中,电池供电的通信设备以对应于基本上较低的占空比的周期性速率快速采样跳频序列,并且由(例如附接到)主供电通信设备来发现。 在预定采样期间,主供电通信设备发送由电池供电的通信设备接收的控制分组,该控制分组包含定时信息,并且被传送以考虑两个设备之间的最坏情况时钟漂移误差。 电池供电的通信设备用包含来自电池供电通信设备的定时信息的链路层确认来响应控制分组。 因此,两个设备可以分别基于控制分组和确认中的定时信息重新同步其定时。

    Recording packet routes using bloom filters
    26.
    发明授权
    Recording packet routes using bloom filters 有权
    使用绽放过滤器记录包路由

    公开(公告)号:US09455903B2

    公开(公告)日:2016-09-27

    申请号:US13563573

    申请日:2012-07-31

    CPC classification number: H04L45/20 H04L45/34 H04L45/74 H04W40/28

    Abstract: In one embodiment, a Bloom filter is provided in a data packet signal functional to preferably encode the identifier of each nodal device and record the nodal hop count the signal traverses across in a computer network. The Bloom filter provided in a data packet signal has one or more fields. The recorded nodal path may updated en-route as the data packet traverses a nodal path in the computer network and/or the order of nodes traversed by the data packet in the computer network are encoded in the bloom filter.

    Abstract translation: 在一个实施例中,布隆过滤器被提供在功能上的数据分组信号中,以优选地对每个节点设备的标识符进行编码,并记录信号在计算机网络中穿过的节点跳数。 在数据分组信号中提供的布隆过滤器具有一个或多个字段。 记录的节点路径可以随着数据分组穿越计算机网络中的节点路径和/或由计算机网络中的数据分组穿过的节点的顺序被编码在布隆过滤器中而被更新。

    Power conservation and latency minimization in frequency hopping communication networks
    27.
    发明授权
    Power conservation and latency minimization in frequency hopping communication networks 有权
    跳频通信网络中的节能和延迟最小化

    公开(公告)号:US09450642B2

    公开(公告)日:2016-09-20

    申请号:US13180853

    申请日:2011-07-12

    CPC classification number: H04B1/713

    Abstract: In one embodiment, a communication device samples a particular frequency hopping sequence during only a particular specified sub-timeslot of a timeslot. If a transmission energy is not detected during the specified sub-timeslot, the device turns off its receiver for a remainder of the timeslot. Otherwise, it continues to sample the particular frequency hopping sequence for at least one or more additional sub-timeslots of the remainder of the timeslot. In another embodiment, a communication device determines whether a neighboring communication device is operating in a first mode or a second mode. If in the second mode, it transmits a transmission to the neighboring communication device starting at any sub-timeslot of the plurality of sub-timeslots. If in the first mode, it transmits the transmission to the neighboring communication device while ensuring that the transmission is actively energized during a particular specified sub-timeslot.

    Abstract translation: 在一个实施例中,通信设备仅在时隙的特定指定子时隙中采样特定的跳频序列。 如果在指定的子时隙期间未检测到传输能量,则该设备在时隙的剩余时间内关闭其接收机。 否则,它继续针对时隙的其余部分的至少一个或多个附加子时隙对特定跳频序列进行采样。 在另一个实施例中,通信设备确定相邻通信设备是否在第一模式或第二模式中操作。 如果在第二模式中,则从多个子时隙的任何子时隙开始向相邻通信设备发送传输。 如果在第一模式中,则将传输发送到相邻通信设备,同时确保在特定指定子时隙期间传输被激活。

    Overlaying independent unicast frequency hopping schedules with a common broadcast schedule
    28.
    发明授权
    Overlaying independent unicast frequency hopping schedules with a common broadcast schedule 有权
    用普通的广播时间表覆盖独立的单播跳频计划

    公开(公告)号:US09020008B2

    公开(公告)日:2015-04-28

    申请号:US13180976

    申请日:2011-07-12

    CPC classification number: H04W72/005 H04W72/1257 H04W84/12 H04W84/18

    Abstract: In one embodiment, each device in a frequency hopping communication network independently determines its own local unicast listening schedule, and discovers a neighbor unicast listening schedule for each of its neighbors. The devices also synchronize to a common broadcast schedule for the network that simultaneously overlays a configured portion of all unicast listening schedules in the network. Accordingly, the device operate in a receive mode according to their local unicast listening schedule and the common broadcast schedule during the overlaid configured portion, and in a transmit mode according to each neighbor unicast listening schedule and the common broadcast schedule during the overlaid configured portion depending upon a destination of transmitted traffic.

    Abstract translation: 在一个实施例中,跳频​​通信网络中的每个设备独立地确定其本地的本地单播监听调度,并且发现其每个邻居的邻居单播监听时间表。 这些设备还与网络的公共广播调度同步,同时覆盖网络中所有单播侦听计划的配置部分。 因此,设备根据其本地单播监听调度和覆盖配置部分中的公共广播调度在接收模式下工作,并且根据每个邻居单播监听调度和覆盖配置部分中的公共广播调度依照发送模式依赖 在传输的流量的目的地。

    Link reliability metrics in communication networks
    29.
    发明授权
    Link reliability metrics in communication networks 有权
    通信网络中链路可靠性指标

    公开(公告)号:US08699368B2

    公开(公告)日:2014-04-15

    申请号:US13190859

    申请日:2011-07-26

    Abstract: In one embodiment, a transmitter in a communication network receives an indication of active transmission times of a receiver to which the transmitter attempts to reach with first transmissions, the active transmission times indicating respective times of second transmissions initiated by the receiver. Based on determining when the first transmissions occur, the transmitter may then compute a link reliability metric for a link from the transmitter to the receiver by excluding one or more of the first transmissions from the indicated active transmission times of the second transmissions. In one embodiment, the active transmission times are in the past and the reliability metric excludes any first transmissions in the past during those times, while in another embodiment the active transmission times are scheduled in the future and the reliability metric does not include any first transmissions since the first transmissions may be scheduled to avoid the active transmission times.

    Abstract translation: 在一个实施例中,通信网络中的发射机接收发射机尝试通过第一次传输到达接收机的主动传输时间的指示,主动传输时间指示由接收机发起的第二传输的相应时间。 基于确定何时发生第一传输,然后发射机可以通过从指示的第二传输的主动传输时间排除一个或多个第一传输来计算从发射机到接收机的链路的链路可靠性度量。 在一个实施例中,主动传输时间是过去的,并且可靠性度量在那些时间期间排除过去的任何第一传输,而在另一个实施例中,将来调度有效传输时间,并且可靠性度量不包括任何第一传输 因为可以调度第一传输以避免主动传输时间。

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