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1. 发明授权

US08966337B2 Powerline communication frames having CRC within header 有权
标题翻译：电源线通信帧，其头部具有CRC
公开(公告)号：US08966337B2
公开(公告)日：2015-02-24
申请号：US13528191
申请日：2012-06-20
申请人： Ramanuja Vedantham , Gang Xu , Kumaran Vijayasankar , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Xiaolin Lu
发明人： Ramanuja Vedantham , Gang Xu , Kumaran Vijayasankar , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Xiaolin Lu
IPC分类号： H03M13/00 , G06F11/10 , H03M13/09
CPC分类号： G06F11/1004 , H03M13/09
摘要： A method of powerline communications including a first node and at least a second node on a powerline communications (PLC) channel in a PLC network. The first node sends a physical layer (PHY) data frame on the PLC channel including a preamble, a PHY header, a MAC header and a MAC payload. The MAC header includes a Cyclic Redundancy Check (CRC) field (MH-CRC field). The second node receives the data frame, parses the MAC header to reach the MH-CRC field, and performs CRC verification using the MH-CRC field to verify the MAC header. If the CRC verification is successful, (i) the second node parses another portion of the MAC header to identify a destination address of the data frame and (ii) to determine whether the data frame is intended for the second node from the destination address.
摘要翻译：一种包括PLC网络中电力线通信（PLC）通道上的第一节点和至少第二节点的电力线通信的方法。第一节点在PLC信道上发送物理层（PHY）数据帧，包括前同步码，PHY报头，MAC报头和MAC有效载荷。 MAC报头包括循环冗余校验（CRC）字段（MH-CRC字段）。第二节点接收数据帧，解析MAC报头到达MH-CRC字段，并使用MH-CRC字段进行CRC校验，以验证MAC报头。如果CRC验证成功，则（i）第二节点解析MAC报头的另一部分以识别数据帧的目的地址，以及（ii）从目的地地址确定数据帧是否用于第二节点。

2. 发明授权

US08929398B2 Data frame for PLC having destination address in the PHY header 有权
标题翻译： PLC的数据帧，具有PHY头中的目标地址
公开(公告)号：US08929398B2
公开(公告)日：2015-01-06
申请号：US13528667
申请日：2012-06-20
申请人： Gang Xu , Ramanuja Vedantham , Kumaran Vijayasankar , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Xiaolin Lu
发明人： Gang Xu , Ramanuja Vedantham , Kumaran Vijayasankar , Anand G. Dabak , Tarkesh Pande , Il Han Kim , Xiaolin Lu
IPC分类号： H04J3/24 , H04L12/26 , H04L1/00 , H04M9/00 , H04L29/06 , H04B3/54
CPC分类号： H04L69/22 , H04B3/54 , H04B3/542 , H04B2203/5408
摘要： A method of powerline communications including a first node and at least a second node on a PLC channel in a PLC network. The first node sends a physical layer (PHY) data frame on the PLC channel including a preamble, PHY header, a MAC header and a MAC payload. The PHY header includes a destination address field having a destination address therein. The second node receives the data frame. The second node compares its network address to the destination address before decoding the MAC header and MAC payload, providing power savings by allowing the second node to not decode the MAC header or MAC payload if its network address does not match the destination address in the PHY header of the data frame.
摘要翻译：一种电力线通信方法，包括PLC网络中PLC通道上的第一节点和至少第二节点。第一节点在PLC信道上发送物理层（PHY）数据帧，包括前导码，PHY头，MAC头和MAC有效载荷。 PHY标头包括其中具有目的地地址的目的地地址字段。第二个节点接收数据帧。第二节点在解码MAC报头和MAC有效载荷之前将其网络地址与目标地址进行比较，通过允许第二节点如果其网络地址与PHY中的目标地址不匹配，则不解码MAC报头或MAC有效载荷，从而提供功率节省数据帧的头。

3. 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。

4. 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。

5. 发明授权

US08913495B2 Flow control for powerline communications 有权
标题翻译：电力线通信的流量控制
公开(公告)号：US08913495B2
公开(公告)日：2014-12-16
申请号：US13529146
申请日：2012-06-21
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Tarkesh Pande , Il Han Kim
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak , Tarkesh Pande , Il Han Kim
IPC分类号： H04L12/24 , H04L12/825 , H04B3/54 , H04L12/801 , H04L12/823 , H04L12/835
CPC分类号： H04L47/266 , H04B3/542 , H04B2203/5408 , H04L47/12 , H04L47/127 , H04L47/30 , H04L47/32 , Y02D50/10
摘要： A method of powerline communications in a powerline communications (PLC) network including a first node and at least a second node. The first node transmits a data frame to the second node over a PLC channel. The second node has a data buffer for storing received information. The second node runs a flow control algorithm which determines a current congestion condition or a projected congestion condition of the data buffer based on at least one congestion parameter. The current congestion condition and projected congestion condition include nearly congested and fully congested. When the current or projected congestion condition is either nearly congested or fully congested, the second node transmits a BUSY including frame over the PLC channel to at least the first node. The first node defers transmitting of any frames to the second node for a congestion clearing wait time.
摘要翻译：一种在包括第一节点和至少第二节点的电力线通信（PLC）网络中的电力线通信的方法。第一个节点通过PLC通道将数据帧发送到第二个节点。第二节点具有用于存储接收到的信息的数据缓冲器。第二节点运行流控制算法，其基于至少一个拥塞参数确定数据缓冲器的当前拥塞状况或预计拥塞状况。目前的拥挤状况和预计的拥挤情况包括几乎拥挤和充分拥挤。当当前或预计的拥塞状况几乎拥塞或完全拥塞时，第二节点将包括在PLC信道上的帧的BUSY发送到至少第一节点。第一个节点将拥塞清除等待时间的任何帧的发送延迟到第二节点。

6. 发明申请

US20130051268A1 Carrier Sense Multiple Access (CSMA) and Collision Detection for Power Line Communications (PLC) Using a Noise Model 审中-公开
标题翻译：使用噪声模型的电力线通信（PLC）的载波侦听多路访问（CSMA）和冲突检测
公开(公告)号：US20130051268A1
公开(公告)日：2013-02-28
申请号：US13597010
申请日：2012-08-28
申请人： Marcel Nassar , Il Han Kim , Tarkesh Pande , Anand G. Dabak , Ramanuja Vedantham , Kumaran Vijayasankar
发明人： Marcel Nassar , Il Han Kim , Tarkesh Pande , Anand G. Dabak , Ramanuja Vedantham , Kumaran Vijayasankar
IPC分类号： H04B3/46
CPC分类号： H04B3/54 , H04B2203/5466 , H04B2203/5495
摘要： Systems and methods for Carrier Sense Multiple Access (CSMA) and collision detection using a noise model are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include receiving a signal via a communications channel in a PLC network, determining a feature of the signal, comparing the feature of the signal with a corresponding feature of a cyclostationary noise model, and taking a predetermined action based, at least in part, upon the comparison. In some implementations, taking the predetermined action may include determining whether to backoff or to transmit a packet over the communications channel. In other implementations, taking the predetermined action may include determining whether an error is due to a packet collision or due to a low quality of the communications channel.
摘要翻译：描述了载波侦听多路访问（CSMA）的系统和方法以及使用噪声模型的碰撞检测。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，一种方法可以包括通过PLC网络中的通信信道接收信号，确定信号的特征，将信号的特征与循环平稳噪声模型的对应特征进行比较，并且基于至少部分比较。在一些实现中，采取预定动作可以包括确定是否退避或通过通信信道发送分组。在其他实现中，采取预定动作可以包括确定错误是由于分组冲突还是由于通信信道质量低而确定。

7. 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。

8. 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。

9. 发明申请

US20130051446A1 Phase Detection in Power Line Communication Systems 有权
标题翻译：电力线通信系统中的相位检测
公开(公告)号：US20130051446A1
公开(公告)日：2013-02-28
申请号：US13593159
申请日：2012-08-23
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Tarkesh Pande , Il Han Kim
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Tarkesh Pande , Il Han Kim
IPC分类号： H04L12/26 , H04B3/54
CPC分类号： H04B3/54 , H04B2203/5408 , H04B2203/5416 , H04B2203/542 , H04B2203/5466
摘要： Phase detection between service nodes in a as “PRIME” (“PoweRline Intelligent Metering Evolution”) communications network, in which the service nodes are connected to one phase of a three-phase power distribution network. A service node joining a sub-network receives packet data units from other service nodes in the sub-network, including those that can potentially serve as a switch node to which the joining service node can register. The joining service node measures an elapsed time between a zero crossing of the AC power waveform at its phase and the start of a frame in the received packet data units. This elapsed time is compared with a similar zero crossing gap communicated by other service nodes in the packet data units, to identify the relative phases to which the two service nodes are connected.
摘要翻译：作为PRIME（PoweRline智能计量演进）通信网络中的服务节点之间的相位检测，其中服务节点连接到三相配电网络的一相。加入子网络的服务节点从子网络中的其他服务节点接收分组数据单元，包括可能充当加入服务节点可以注册的交换节点的那些节点。加入服务节点测量在其相位处的AC功率波形的过零点与接收的分组数据单元中的帧的开始之间的经过时间。将经过的时间与由分组数据单元中的其他服务节点通信的类似的零交叉间隔进行比较，以识别两个服务节点所连接的相对阶段。

10. 发明授权

US09379773B2 Phase detection in power line communication systems 有权
标题翻译：电力线通信系统中的相位检测
公开(公告)号：US09379773B2
公开(公告)日：2016-06-28
申请号：US13593159
申请日：2012-08-23
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Tarkesh Pande , Il Han Kim
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Tarkesh Pande , Il Han Kim
IPC分类号： H04B3/54 , H04L12/26
CPC分类号： H04B3/54 , H04B2203/5408 , H04B2203/5416 , H04B2203/542 , H04B2203/5466
摘要： Phase detection between service nodes in a as “PRIME” (“PoweRline Intelligent Metering Evolution”) communications network, in which the service nodes are connected to one phase of a three-phase power distribution network. A service node joining a sub-network receives packet data units from other service nodes in the sub-network, including those that can potentially serve as a switch node to which the joining service node can register. The joining service node measures an elapsed time between a zero crossing of the AC power waveform at its phase and the start of a frame in the received packet data units. This elapsed time is compared with a similar zero crossing gap communicated by other service nodes in the packet data units, to identify the relative phases to which the two service nodes are connected.
摘要翻译：在“PRIME”（“PoweRline Intelligent Metering Evolution”）通信网络中的服务节点之间的相位检测，其中服务节点连接到三相配电网络的一相。加入子网络的服务节点从子网络中的其他服务节点接收分组数据单元，包括可能充当加入服务节点可以注册的交换节点的那些节点。加入服务节点测量在其相位处的AC功率波形的过零点与接收的分组数据单元中的帧的开始之间的经过时间。将经过的时间与由分组数据单元中的其他服务节点通信的类似的零交叉间隔进行比较，以识别两个服务节点所连接的相对阶段。

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