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51. 发明授权

US09270334B2 Advanced switch node selection for power line communications network 有权
标题翻译：电力线通信网络的高级交换机节点选择
公开(公告)号：US09270334B2
公开(公告)日：2016-02-23
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： H04L12/28 , H04B3/54
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。

52. 发明授权

US08958464B2 PHY payload over multiple tone masks using single tone mask PHY header information 有权
标题翻译：使用单色调掩码PHY头信息的多个音调掩码上的PHY有效载荷
公开(公告)号：US08958464B2
公开(公告)日：2015-02-17
申请号：US13493268
申请日：2012-06-11
申请人： Ramanuja Vedantham , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Kumaran Vijayasankar
发明人： Ramanuja Vedantham , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Kumaran Vijayasankar
IPC分类号： H04B1/38 , H04B3/54 , H04L5/00 , H04L27/26
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5445 , H04L5/0007 , H04L5/0037 , H04L5/0094 , H04L27/2602 , H04L27/2613 , H04L27/2666 , H04L69/22
摘要： A method of powerline communications (PLC) includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a powerline of a PLC network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion.
摘要翻译：电力线通信（PLC）的方法包括在PLC网络的电力线上的第一通信节点处由第一通信设备编译用于物理层（PHY）的数据帧。数据帧包括一组音调中的单音PHY头部部分和数据有效载荷部分，包括具有与单音频率不同的频率的至少一个音调。 PHY报头部分包括识别该组音调的色调掩码识别信息。第一通信设备通过电力线将数据帧发送到电力线上的第二通信节点处的第二通信设备。第二通信设备接收数据帧，并使用PHY报头部分中的色调掩码识别信息解码数据有效载荷。

53. 发明授权

US08902930B2 Hybrid communication networks 有权
标题翻译：混合通信网络
公开(公告)号：US08902930B2
公开(公告)日：2014-12-02
申请号：US13457612
申请日：2012-04-27
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04L12/26 , H04M11/04 , H04B3/54 , H04L5/00 , H04L25/02
CPC分类号： H04L5/0048 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5466 , H04B2203/5483 , H04B2203/5491 , H04L5/0044 , H04L5/0055 , H04L5/0078 , H04L5/0094 , H04L25/0272
摘要： Systems and methods for designing, using, and/or implementing hybrid communication networks are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, one or more of the techniques disclosed herein may include methods to coordinate medium-to-low voltage (MV-LV) and low-to-low voltage (LV-LV) PLC networks when the MV-LV network operates in a frequency subband mode and the LV-LV network operates in wideband mode (i.e., hybrid communications). In some cases, MV routers and LV routers may have different profiles. For instance, MV-LV communications may be performed using MAC superframe structures, and first-level LV to lower-level LV communications may take place using a beacon mode. Lower layer LV nodes may communicate using non-beacon modes. Also, initial scanning procedures may encourage first-to-second-level LV device communications rather than MV-to-first-level LV connections.
摘要翻译：描述了用于设计，使用和/或实现混合通信网络的系统和方法。在各种实施例中，这些系统和方法可以适用于电力线通信（PLC）。例如，本文公开的技术中的一个或多个技术可以包括当MV-LV网络以一个或多个的方式工作时协调中低电压（MV-LV）和低到低电压（LV-LV）PLC网络的方法频率子带模式和LV-LV网络在宽带模式（即，混合通信）中工作。在某些情况下，MV路由器和LV路由器可能具有不同的配置文件。例如，可以使用MAC超帧结构来执行MV-LV通信，并且可以使用信标模式进行第一级LV到低级LV通信。下层LV节点可以使用非信标模式进行通信。此外，初始扫描程序可以鼓励第一级到第二级LV器件通信，而不是MV到一级LV连接。

54. 发明授权

US08830980B2 Superframe coordination in beacon-enabled networks 有权
标题翻译：启用信标的网络中的超帧协调
公开(公告)号：US08830980B2
公开(公告)日：2014-09-09
申请号：US13457638
申请日：2012-04-27
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Badri N. Varadarajan , Anand G. Dabak
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Badri N. Varadarajan , Anand G. Dabak
IPC分类号： H04W74/04 , H04B3/54 , H04L12/64 , H04L25/02 , H04L5/00
CPC分类号： H04B3/544 , H04B3/542 , H04B2203/5408 , H04B2203/5466 , H04B2203/5483 , H04B2203/5491 , H04L5/0044 , H04L5/0094 , H04L12/6418 , H04L25/0272
摘要： Systems and methods for designing, using, and/or implementing superframe coordination in beacon-enabled networks are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include implementing a Media Access Control (MAC) superframe using a communication device. The MAC superframe may include a plurality of beacon slots, a plurality of Contention Access Period (CAP) slots following the plurality of beacon slots, a Contention Free Period (CFP) poll access slot following the plurality of CAP slots, a CFP slot following the CFP poll access slot, an inactivity period following the CFP slot, a beacon region following the inactivity period, and a communication slot following the beacon region. The method may also include communicating with another communication device using the MAC superframe.
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现超帧协调的系统和方法。在各种实现中，这些系统和方法可以适用于电力线通信（PLC）。例如，一种方法可以包括使用通信设备实现媒体访问控制（MAC）超帧。 MAC超帧可以包括多个信标时隙，在多个信标时隙之后的多个争用接入周期（CAP）时隙，跟随在多个CAP时隙之后的无竞争周期（CFP）轮询接入时隙，后面的CFP时隙 CFP轮询接入时隙，CFP时隙之后的不活动时段，跟随非活动时段的信标区域以及信标区域之后的通信时隙。该方法还可以包括使用MAC超帧与另一通信设备进行通信。

55. 发明授权

US08792567B2 Preamble sequence extension 有权
标题翻译：前导序列扩展
公开(公告)号：US08792567B2
公开(公告)日：2014-07-29
申请号：US13526227
申请日：2012-06-18
申请人： Anand G. Dabak , Tarkesh Pande , Il Han Kim , Ramanuja Vedantham , Kumaran Vijayasankar , Gang Xu
发明人： Anand G. Dabak , Tarkesh Pande , Il Han Kim , Ramanuja Vedantham , Kumaran Vijayasankar , Gang Xu
IPC分类号： H04B3/00
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5425 , H04B2203/5495
摘要： A method of powerline communications between a plurality of nodes on a powerline communications (PLC) channel including a first node and a second node. At least one communication quality measure is determined for the PLC channel. Based on the communication quality measure, a preamble of a data frame is dynamically switched between a reference preamble having a reference symbol length including a reference number of syncP symbols and a reference number of syncM symbols and at least a first extended preamble having an extended symbol length that is greater than (>) the reference symbol length. The data frame is then transmitted on the PLC channel.
摘要翻译：一种在包括第一节点和第二节点的电力线通信（PLC）信道上的多个节点之间的电力线通信的方法。为PLC通道确定至少一个通信质量度量。基于通信质量测量，在具有包括参考数量的syncP符号的参考符号长度和参考数量的syncM符号的参考前同步码和至少具有扩展符号的第一扩展前同步码之间动态地切换数据帧的前导码长度大于（>）参考符号长度。然后在PLC通道上传输数据帧。

56. 发明授权

US08761147B2 Selective protection based on sequence numbers in coexisting networks 有权
标题翻译：基于共存网络中序列号的选择性保护
公开(公告)号：US08761147B2
公开(公告)日：2014-06-24
申请号：US13351846
申请日：2012-01-17
申请人： Yanjun Sun , Ariton E. Xhafa , Ramanuja Vedantham , Josef Peery , Assaf Sella , Xiaolin Lu
发明人： Yanjun Sun , Ariton E. Xhafa , Ramanuja Vedantham , Josef Peery , Assaf Sella , Xiaolin Lu
IPC分类号： H04L1/16 , H04L12/56 , H04L1/18
CPC分类号： H04L1/1809 , H04L47/34 , H04W72/1215 , H04W74/0816 , H04W88/06
摘要： A wireless device comprises a first wireless transceiver, a second wireless transceiver, and control logic. The control logic is coupled to the first wireless transceiver and the second wireless transceiver. The control logic is configured to determine whether to transmit protection frames (e.g., clear-to-send 2 self frames) based upon sequence numbers in frames received from another device.
摘要翻译：无线设备包括第一无线收发器，第二无线收发器和控制逻辑。控制逻辑耦合到第一无线收发器和第二无线收发器。控制逻辑被配置为基于从另一设备接收的帧中的序列号来确定是否发送保护帧（例如，清除发送2个自身帧）。

57. 发明授权

US08675529B2 Power efficient tunneled direct link setup apparatus, systems and methods 有权
标题翻译：电力隧道式直接连接设备，系统和方法
公开(公告)号：US08675529B2
公开(公告)日：2014-03-18
申请号：US13109974
申请日：2011-05-17
申请人： Leonardo William Estevez , Ariton Xhafa , Ramanuja Vedantham , Yanjun Sun
发明人： Leonardo William Estevez , Ariton Xhafa , Ramanuja Vedantham , Yanjun Sun
IPC分类号： H04W84/02
CPC分类号： H04W52/0209 , H04W76/12 , H04W76/14 , H04W84/18 , Y02D70/1242 , Y02D70/126 , Y02D70/142 , Y02D70/144 , Y02D70/146
摘要： Apparatus, systems, and methods disclosed herein operate to provide wireless communication between personal mobile communication (PMC) devices. An emulated wireless access point (AP) at a first PMC device (PMC1) establishes a first tunneled direct link setup (TDLS) session between a first station module (STA1) incorporated into the PMC1 and a second station module (STA2) incorporated into a second PMC device (PMC2). Following establishment of the TDLS session, the wireless AP is allowed to sleep; and most infrastructure management duties are handled by the STA1 during the session. PMC device battery charge may be conserved as a result. The emulated wireless AP may also establish a second TDLS link to a third station module (STA3) incorporated into a third PMC device (PMC3). The STA1 may then bridge data traffic flow between the STA2 and the STA3. Such bridging operation may enable communication between two PMC devices otherwise unable to decode data received from the other.
摘要翻译：本文公开的设备，系统和方法用于提供个人移动通信（PMC）设备之间的无线通信。在第一PMC设备（PMC1）处的仿真无线接入点（AP）建立在并入到PMC1中的第一站模块（STA1）和并入到PMC1中的第二站模块（STA2）之间的第一隧道直接链路建立（TDLS）会话第二PMC设备（PMC2）。在建立TDLS会话后，无线AP被允许睡眠; 大多数基础设施管理职能由STA1在会议期间处理。因此，可以节省PMC设备电池电量。仿真无线AP还可以建立到并入第三PMC设备（PMC3）的第三站模块（STA3）的第二TDLS链路。然后STA1可以桥接STA2和STA3之间的数据业务流。这种桥接操作可以实现两个PMC设备之间的通信，否则不能解码从另一个接收的数据。

58. 发明授权

US08478932B2 Power efficient memory management for embedded systems 有权
标题翻译：嵌入式系统的高效内存管理
公开(公告)号：US08478932B2
公开(公告)日：2013-07-02
申请号：US12559504
申请日：2009-09-15
申请人： Seung Jun Baek , Ramanuja Vedantham , Se-Joong Lee
发明人： Seung Jun Baek , Ramanuja Vedantham , Se-Joong Lee
IPC分类号： G06F12/00
CPC分类号： G06F12/023 , G06F12/06 , G06F2212/1028 , Y02D10/13
摘要： Embodiments of the invention provide a memory allocation module that adopts memory-pool based allocation and is aware of the physical configuration of the memory blocks in order to manage the memory allocation intelligently while exploiting statistical characters of packet traffic. The memory-pool based allocation makes it easy to find empty memory blocks. Packet traffic characteristics are used to maximize the number of empty memory blocks.
摘要翻译：本发明的实施例提供了一种采用基于存储器池的分配并且知道存储器块的物理配置的存储器分配模块，以便在利用分组业务的统计字符的同时智能地管理存储器分配。基于内存池的分配可以轻松找到空的内存块。使用分组流量特性来最大化空的存储器块的数量。

59. 发明申请

US20120281716A1 Hybrid Communication Networks 有权
标题翻译：混合通信网络
公开(公告)号：US20120281716A1
公开(公告)日：2012-11-08
申请号：US13457612
申请日：2012-04-27
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J4/00 , H04B3/54 , H04J1/00
CPC分类号： H04L5/0048 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5466 , H04B2203/5483 , H04B2203/5491 , H04L5/0044 , H04L5/0055 , H04L5/0078 , H04L5/0094 , H04L25/0272
摘要： Systems and methods for designing, using, and/or implementing hybrid communication networks are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, one or more of the techniques disclosed herein may include methods to coordinate medium-to-low voltage (MV-LV) and low-to-low voltage (LV-LV) PLC networks when the MV-LV network operates in a frequency subband mode and the LV-LV network operates in wideband mode (i.e., hybrid communications). In some cases, MV routers and LV routers may have different profiles. For instance, MV-LV communications may be performed using MAC superframe structures, and first-level LV to lower-level LV communications may take place using a beacon mode. Lower layer LV nodes may communicate using non-beacon modes. Also, initial scanning procedures may encourage first-to-second -level LV device communications rather than MV-to-first-level LV connections.
摘要翻译：描述了用于设计，使用和/或实现混合通信网络的系统和方法。在各种实施例中，这些系统和方法可以适用于电力线通信（PLC）。例如，本文公开的技术中的一个或多个技术可以包括当MV-LV网络以一个或多个的方式工作时协调中低电压（MV-LV）和低到低电压（LV-LV）PLC网络的方法频率子带模式和LV-LV网络在宽带模式（即，混合通信）中工作。在某些情况下，MV路由器和LV路由器可能具有不同的配置文件。例如，可以使用MAC超帧结构来执行MV-LV通信，并且可以使用信标模式进行第一级LV到低级LV通信。下层LV节点可以使用非信标模式进行通信。此外，初始扫描程序可以鼓励第一到第二级LV设备通信，而不是MV到第一级LV连接。

60. 发明申请

US20120281533A1 SYSTEMS AND METHODS FOR TIME OPTIMIZATION FOR SILENCING WIRELESS DEVICES IN COEXISTENCE NETWORKS 审中-公开
标题翻译：时间优化的系统和方法，用于沉没网络中的无线设备
公开(公告)号：US20120281533A1
公开(公告)日：2012-11-08
申请号：US13463263
申请日：2012-05-03
申请人： Ariton E. Xhafa , Yanjun Sun , Ramanuja Vedantham , Assaf Sella , Josef Peery , Xiaolin Lu
发明人： Ariton E. Xhafa , Yanjun Sun , Ramanuja Vedantham , Assaf Sella , Josef Peery , Xiaolin Lu
IPC分类号： H04W24/00 , H04W28/10
CPC分类号： H04W24/08 , H04L47/25 , H04W28/0205 , H04W88/06
摘要： In at least some embodiments, a communication device includes a transceiver with at least two dissimilar wireless network technology subsystems. The communication device also includes a silencing frame controller to monitor access point rate drop behavior and to adjust a level of silencing frame operations for the communication device based on the monitored access point drop behavior.
摘要翻译：在至少一些实施例中，通信设备包括具有至少两个不同的无线网络技术子系统的收发器。通信设备还包括一个消音帧控制器，用于监视接入点速率丢弃行为，并根据被监视的接入点丢弃行为调整通信设备的消音帧操作的级别。

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