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11. 发明授权

US08717923B2 System and method for soft access point power reduction 有权
标题翻译：软接入点功率降低的系统和方法
公开(公告)号：US08717923B2
公开(公告)日：2014-05-06
申请号：US13287219
申请日：2011-11-02
申请人： Ramanuja Vedantham , Xiaolin Lu , Assaf Sella , Josef Peery , Ariton Xhafa , Yanjun Sun
发明人： Ramanuja Vedantham , Xiaolin Lu , Assaf Sella , Josef Peery , Ariton Xhafa , Yanjun Sun
IPC分类号： H04J1/16
CPC分类号： H04L1/1854 , H04W4/08 , H04W4/50 , H04W24/02 , H04W48/08 , H04W84/12 , H04W88/02 , H04W88/12 , H04W92/18 , Y02D70/142 , Y02D70/22 , Y02D70/23
摘要： A system and method for reducing power consumption of a wireless device operating as a soft access point. In one embodiment, a wireless device includes a soft access point controller that configures the wireless device to operate as a group owner in a peer-to-peer wireless local area network. The soft access point controller includes a beacon controller. The beacon controller is configured to transmit beacon frames at a first periodic interval. The beacon controller is also configured to extend a discovery interval of a wireless station by transmitting acknowledgement packets at a second periodic interval. The second periodic interval is shorter than the first periodic interval and shorter than a minimum discovery scan timeout of the wireless station.
摘要翻译：一种用于降低作为软接入点操作的无线设备的功耗的系统和方法。在一个实施例中，无线设备包括软接入点控制器，其将无线设备配置为在对等无线局域网中作为组所有者操作。软接入点控制器包括信标控制器。信标控制器被配置为以第一周期性间隔发送信标帧。信标控制器还被配置为通过以第二周期性间隔发送确认分组来扩展无线站的发现间隔。第二周期性间隔比第一周期性间隔短，并且短于无线站的最小发现扫描超时。

12. 发明申请

US20140079142A1 ADVANCED SWITCH NODE SELECTION FOR POWER LINE COMMUNICATIONS NETWORK 有权
标题翻译：用于电力线通信网络的高级开关节点选择
公开(公告)号：US20140079142A1
公开(公告)日：2014-03-20
申请号：US13620829
申请日：2012-09-15
申请人： Ramanuja Vedantham , Kumaran Vijayasankar , Xiaolin Lu
发明人： Ramanuja Vedantham , Kumaran Vijayasankar , Xiaolin Lu
IPC分类号： H04L25/00
CPC分类号： H04L41/12 , H04B3/00 , H04B3/46 , H04B3/544
摘要： An algorithm for the promotion of terminal nodes to switch nodes in a PLC network reduces overall network overhead and collisions, while ensuring the appropriate selection of a switch node and minimizing the number of levels in a PLC network. It also ensures that the terminal nodes with appropriate signal-to-noise ratios (SNRs) are promoted. It is desirable to have a network with fewer levels. The disclosed approach favors the nodes that are closer to the DC to promote them as switch nodes. This is achieved by waiting for a smaller number of PNPDUs for a node that is closer to the DC in comparison to a node that is farther away from the DC.
摘要翻译：用于促进终端节点切换PLC网络中的节点的算法可减少整体网络开销和冲突，同时确保适当选择交换节点并最小化PLC网络中的级别数量。它还确保提供具有适当信噪比（SNR）的终端节点。希望具有较少级别的网络。所公开的方法有利于更接近DC的节点将其推广为交换节点。这是通过等待与离DC更远的节点相比更靠近DC的节点的较少数量的PNPDU来实现的。

13. 发明授权

US08644269B2 Adaptive transmissions in wireless networks 有权
标题翻译：无线网络中的自适应传输
公开(公告)号：US08644269B2
公开(公告)日：2014-02-04
申请号：US13590659
申请日：2012-08-21
申请人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Josef Peery
发明人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Josef Peery
IPC分类号： H04W74/04
CPC分类号： H04W80/00 , H04W74/002 , H04W74/04
摘要： 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.
摘要翻译：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。

14. 发明申请

US20130198540A1 Dynamic Power Management in Real Time Systems 有权
标题翻译：实时系统中的动态电源管理
公开(公告)号：US20130198540A1
公开(公告)日：2013-08-01
申请号：US13363949
申请日：2012-02-01
申请人： Sejoong Lee , Soon-Hyeok Choi , Xiaolin Lu
发明人： Sejoong Lee , Soon-Hyeok Choi , Xiaolin Lu
IPC分类号： G06F1/32
CPC分类号： G06F1/32 , G06F1/3206 , G06F1/3243 , G06F9/48 , G06F11/34 , Y02D10/152 , Y02D50/20
摘要： Dynamically reducing power consumption by a processor in a computer system by determining a maximum number of times (token count) that the processor can incur a start-up delay after being placed into a low-power mode during a token period of time when executing a task for a token period of time. The processor may be placed into the low-power mode while executing the task in response to an idle indicator only if a current value of the token count assigned to the task is greater than zero. The current value of the token count is decremented each time the processor incurs a start-up delay in response to being awakened from the low-power mode. The current token count is reset to match the assigned token count at the end of each token period. Furthermore, wakeup may be anticipated to allow the processor to be awakened preemptively.
摘要翻译：在计算机系统中通过确定处理器在执行一个令牌周期之后放入低功率模式之后可以引起启动延迟的最大次数（令牌计数）来动态地减少计算机系统中的处理器的功率消耗任务为令牌的一段时间。只有当分配给任务的令牌计数的当前值大于0时，处理器才可以响应于空闲指示符而执行任务而被置于低功率模式。每当处理器响应于从低功率模式唤醒而引起启动延迟时，令牌计数的当前值递减。当前令牌计数被重置为与每个令牌周期结束时分配的令牌计数相匹配。此外，可以预期唤醒以允许处理器被抢先地唤醒。

15. 发明授权

US08477703B2 Channel utilization improvement in coexisting wireless networks 有权
标题翻译：共存无线网络中的信道利用率改善
公开(公告)号：US08477703B2
公开(公告)日：2013-07-02
申请号：US12822543
申请日：2010-06-24
申请人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Assaf Sella
发明人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Assaf Sella
IPC分类号： H04Q7/00
CPC分类号： H04W72/1215 , H04W88/06
摘要： A wireless device comprises a first wireless transceiver configured for communication via a first wireless network, a second wireless transceiver configured for communication via a second wireless network; and a scheduler that controls which of the first and second transceivers is granted access to a wireless medium at a given time. When the first wireless transceiver has been granted access to the wireless medium by the scheduler and the first wireless transceiver receives a packet via the first wireless network, the scheduler temporarily grants the second wireless transceiver access to the wireless medium based on the packet indicating that first wireless transceiver is not to use the wireless medium for a period of time.
摘要翻译：无线设备包括经配置以经由第一无线网络进行通信的第一无线收发器，经配置以经由第二无线网络进行通信的第二无线收发器; 以及调度器，其在给定时间控制第一和第二收发器中的哪一个被允许访问无线介质。当第一无线收发器被授权由调度器访问无线介质并且第一无线收发器经由第一无线网络接收分组时，调度器基于指示第一无线收发器的分组临时地向第二无线收发器接入无线介质无线收发器不使用无线介质一段时间。

16. 发明申请

US20120314739A1 Radio Duty Cycle Minimization Techniques for Transmission-Initiated Wireless Multi-Hop Networks 有权
标题翻译：用于传输发起的无线多跳网络的无线电占空比最小化技术
公开(公告)号：US20120314739A1
公开(公告)日：2012-12-13
申请号：US13491982
申请日：2012-06-08
申请人： Sandeep Bhadra , Soon-Hyeok Choi , Xiaolin Lu
发明人： Sandeep Bhadra , Soon-Hyeok Choi , Xiaolin Lu
IPC分类号： H04B1/38
CPC分类号： H04W52/0229 , H04W40/246 , H04W52/0238 , Y02D70/00 , Y02D70/144 , Y02D70/22
摘要： The duration of receiver on-times may be minimized by sensing and reacting to communication channel power levels at intervals. When no energy is detected on the communication channel, then the receiver may be turned off for a channel sampling interval. If energy is detected on the channel, then the receiver may remain on to determine if a received message is associated with the device. Receiver on-time may also be minimized by adjusting the timing of messages used for broadcast messages sent by routing or other protocols. Broadcast messages, such as network routing topology messages, may be controlled in two phases. In a first phase, the broadcast messages are sent with at a high rate to allow nodes to join the network rapidly. In a second phase, the broadcast messages are sent with at a lower rate to minimize interference with data and other messages in the network.
摘要翻译：接收器接通时间的持续时间可以通过以间隔感测和响应通信信道功率电平来最小化。当在通信信道上没有检测到能量时，接收机可以被关闭以用于信道采样间隔。如果在信道上检测到能量，则接收机可以保持接通，以确定接收到的消息是否与设备相关联。通过调整用于由路由或其他协议发送的广播消息的消息的定时，接收器接通时间也可以被最小化。诸如网络路由拓扑消息之类的广播消息可以分两个阶段进行控制。在第一阶段，以高速发送广播消息，以允许节点快速加入网络。在第二阶段中，以较低的速率发送广播消息以最小化对网络中的数据和其他消息的干扰。

17. 发明申请

US20120147899A1 Media Access Control (MAC) Layer for Power Line Communications (PLC) 审中-公开
标题翻译：用于电力线通信（PLC）的媒体访问控制（MAC）层
公开(公告)号：US20120147899A1
公开(公告)日：2012-06-14
申请号：US13300850
申请日：2011-11-21
申请人： Shu Du , Xiaolin Lu , Badri N. Varadarajan
发明人： Shu Du , Xiaolin Lu , Badri N. Varadarajan
IPC分类号： H04L12/413
CPC分类号： H04L12/413 , H04B3/542 , H04B3/544 , H04B2203/5433
摘要： Systems and methods for a media access control (MAC) layer for power line communications (PLC) are described. In some embodiments, a method may include receiving packets for transmission, each packet associated with a priority code, each priority code unrelated to its corresponding packet's time or order of arrival. The method may also include transmitting a first subset of packets having priority codes higher than priority codes in a second subset, and buffering the packets in the second subset for later transmission. Another method may include identifying a link quality indicator (LQI) associated neighboring service nodes, selecting one of the service nodes with highest LQI, and transmitting a promotion needed packet data unit to the selected service node. Yet another method may include communicating an Internet protocol (IP)-based message to a PLC device that excludes mesh header information, fragmentation header information, and/or the IP address of the PLC device.
摘要翻译：描述了用于电力线通信（PLC）的媒体访问控制（MAC）层的系统和方法。在一些实施例中，一种方法可以包括接收用于传输的分组，与优先级代码相关联的每个分组，与其对应分组的时间或到达顺序无关的每个优先级代码。该方法还可以包括在第二子集中发送具有高于优先级码的优先级码的分组的第一子集，以及缓冲第二子集中的分组用于稍后传输。另一方法可以包括识别相关联的相邻服务节点的链路质量指示符（LQI），选择具有最高LQI的服务节点中的一个，以及将所需的分组数据单元发送到所选择的服务节点。另一种方法可以包括将基于因特网协议（IP）的消息传送到PLC设备，该PLC设备不包括网络报头信息，分段报头信息和/或PLC设备的IP地址。

18. 发明授权

US08068871B2 Systems and methods for time optimization for silencing wireless devices in coexistence networks 有权
标题翻译：用于在共存网络中消除无线设备的时间优化的系统和方法
公开(公告)号：US08068871B2
公开(公告)日：2011-11-29
申请号：US12251187
申请日：2008-10-14
申请人： Ariton E. Xhafa , Xiaolin Lu , Shantanu Kangude
发明人： Ariton E. Xhafa , Xiaolin Lu , Shantanu Kangude
IPC分类号： H04M1/00
CPC分类号： H04W16/14
摘要： 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 receiver comprises at least two dissimilar network technology subsystems, at least one subsystem of which is higher priority than at least another of the dissimilar subsystems. In some embodiments, a receiver is able to transmit a silencing frame during a predetermined transmission window within a lower priority technology network interval. In other embodiments, a receiver calculates a predetermined transmission window, the predetermined transmission window to occur within a lower priority technology network interval, and transmits a silencing frame during the predetermined transmission window. In further embodiments, a receiver 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.
摘要翻译：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。接收机包括至少两个不同的网络技术子系统，其至少一个子系统比不同子系统中的至少另一个具有更高的优先级。在一些实施例中，接收机能够在较低优先级技术网络间隔内的预定传输窗口期间传输消音帧。在其他实施例中，接收机计算预定的传输窗口，预定的传输窗口发生在较低优先级的技术网络间隔内，并且在预定的传输窗口期间发送消音帧。在另外的实施例中，接收机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。

19. 发明授权

US07450850B2 Fiber and wire communication system 有权
标题翻译：光纤和电线通信系统
公开(公告)号：US07450850B2
公开(公告)日：2008-11-11
申请号：US11684990
申请日：2007-03-12
申请人： Charles D. Combs , Thomas Edward Darcie , Bhavesh N. Desai , Alan H. Gnauck , Xiaolin Lu , Esteban Sandino , Oleh J. Sniezko , Anthony G. Werner , Sheryl Leigh Woodward
发明人： Charles D. Combs , Thomas Edward Darcie , Bhavesh N. Desai , Alan H. Gnauck , Xiaolin Lu , Esteban Sandino , Oleh J. Sniezko , Anthony G. Werner , Sheryl Leigh Woodward
IPC分类号： H04J14/00
CPC分类号： H04J14/0226 , H04B10/25751 , H04J14/0227 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04N7/17309 , H04N7/22
摘要： This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node. The mux-node may route upstream communication signals received from the mini-fiber nodes as downstream signals to other mini-fiber nodes also connected to the mux-node without head-end interaction.
摘要翻译：本发明提供了一种用于头端和终端用户之间的通信系统的新架构，其扩展了通信系统的带宽和可靠性。多路复用节点从前端接收通信信号，并将接收到的通信信号转发到一个或多个微型光纤节点。与前端的连接是通过少量光纤，并且到每个微型光纤节点的连接可以经由可提供全双工通信的一个或多个光纤。前端可以使用数字或数字和模拟信号与多路复用节点进行通信。在将信号转发给最终用户之前，微型光纤节点可以组合从头端接收的信号和用于本地媒体接入控制的环回信号。上行数据由微型光纤节点接收并发送到多路复用节点。多路复用节点可以将从微型光纤节点接收的上行通信信号作为下行信号路由到也连接到多路复用器节点的其他微型光纤节点，而无需前端交互。

20. 发明申请

US20080019695A1 FIBER AND WIRE COMMUNICATION SYSTEM 失效
标题翻译：光纤通信系统
公开(公告)号：US20080019695A1
公开(公告)日：2008-01-24
申请号：US11866222
申请日：2007-10-02
申请人： Charles Combs , Thomas Darcie , Bhavesh Desai , Alan Gnauck , Xiaolin Lu , Esteban Sandino , Oleh Sniezko , Anthony Werner , Sheryl Woodward
发明人： Charles Combs , Thomas Darcie , Bhavesh Desai , Alan Gnauck , Xiaolin Lu , Esteban Sandino , Oleh Sniezko , Anthony Werner , Sheryl Woodward
IPC分类号： H04J14/02
CPC分类号： H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0238 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04N7/22
摘要： This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node. The mux-node may route upstream communication signals received from the mini-fiber nodes as downstream signals to other mini-fiber nodes also connected to the mux-node without head-end interaction.
摘要翻译：本发明提供了一种用于头端和终端用户之间的通信系统的新架构，其扩展了通信系统的带宽和可靠性。多路复用节点从前端接收通信信号，并将接收到的通信信号转发到一个或多个微型光纤节点。与前端的连接是通过少量光纤，并且到每个微型光纤节点的连接可以经由可提供全双工通信的一个或多个光纤。前端可以使用数字或数字和模拟信号与多路复用节点进行通信。在将信号转发给最终用户之前，微型光纤节点可以组合从头端接收的信号和用于本地媒体接入控制的环回信号。上行数据由微型光纤节点接收并发送到多路复用节点。多路复用节点可以将从微型光纤节点接收的上行通信信号作为下行信号路由到也连接到多路复用器节点的其他微型光纤节点，而无需前端交互。

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