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21. 发明申请

US20130215885A1 Transmission of Segmented Frames in Power Line Communication 有权
公开(公告)号：US20130215885A1
公开(公告)日：2013-08-22
申请号：US13415597
申请日：2012-03-08
申请人： Kumaran Vijayasankar , Ramanuja Vedantham
发明人： Kumaran Vijayasankar , Ramanuja Vedantham
IPC分类号： H04B3/54 , H04L12/413
CPC分类号： H04L12/413 , H04B3/542 , H04B3/544 , H04B2203/5408 , H04B2203/5454 , H04L1/0041 , H04L1/0065 , H04L1/0067 , H04L1/08 , H04L1/1671 , H04L1/18 , H04L5/0044 , H04L5/0094 , H04L27/2601 , H04L27/2646
摘要： Segmented frames of data may be transmitted from a transmitting device using conflict free slots (CFS) within a carrier sense multiple access with collision avoidance (CSMA/CA) protocol on a noisy media. At a receiver, a segmented frame of data is received. The data is represented by a plurality of tones. If requested by the transmitter, a tone map response command is prepared that specifies a set of optimized tone map parameters by analyzing the received frame of data. Any previously determined tone map response commands to the transmitting device are deleted. A sequence of frame segments may be received in conflict free slots, but only one tone map response is transmitted to the transmitting device after receiving the entire sequence of frame segments.

22. 发明授权

US09030932B2 Enhanced carrier sense multiple access (CSMA) protocols 有权
标题翻译：增强载波侦听多路访问（CSMA）协议
公开(公告)号：US09030932B2
公开(公告)日：2015-05-12
申请号：US13593428
申请日：2012-08-23
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
IPC分类号： H04L12/413 , H04B3/54
CPC分类号： H04L12/413 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5433 , H04L69/02
摘要： Systems and methods for enhanced carrier sense multiple access (CSMA) protocols are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include attempting to access a communications channel to transmit a frame after a backoff time proportional to a randomly generated number within a contention window (CW), the CW having an initial value carried over from a previous transmission of a different frame. Additionally or alternatively, some of techniques described herein may facilitate the spreading of the time over which devices attempt to transmit packets, thereby reducing the probability of collisions using, for example, Additive Decrease Multiplicative Increase (ADMI) mechanisms.
摘要翻译：描述了用于增强载波侦听多路访问（CSMA）协议的系统和方法。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，一种方法可以包括在与争用窗口（CW）中的随机生成的数字成比例的退避时间之后尝试访问通信信道以发送帧，所述CW具有从先前的不同的传输中携带的初始值帧。附加地或替代地，本文描述的技术中的一些技术可以有助于扩展这些设备尝试发送分组的时间，由此例如使用添加减少乘数增加（ADMI）机制来减少冲突的概率。

23. 发明申请

US20130034110A1 BROADCAST TRANSMISSION FOR MULTI-TONE MASK MODE OPERATION 有权
标题翻译：用于多音蒙版模式操作的广播传输
公开(公告)号：US20130034110A1
公开(公告)日：2013-02-07
申请号：US13564440
申请日：2012-08-01
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
IPC分类号： H04B3/54
CPC分类号： H04B3/544 , H04B3/30 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04H20/42 , H04L5/005 , H04L25/024
摘要： A method of Multi-Tone Mask (MTM) mode communications in a PLC network including a first router associated with a plurality of nodes. A super-frame spanning a time period is received within the subnetwork. The super-frame includes beacon frames in beacon slots within a beacon period, with each beacon frame in one of N TMs, a contention access period (CAP) including a plurality of CAP slots provided for each TM, and a poll-based contention-free period (CFP). The beacon frames provide time assignments within the super-frame including time assignments for the CAP slots and for the CFP, and TM assignments for the TMs in the CAP slots. One of nodes, another router in the subnetwork, or a router in another subnetwork transmits a broadcast frame on the PLC channel. The first router forwards the broadcast frame on the PLC channel in each of the N TMs within the time period.
摘要翻译：一种在PLC网络中的多音调掩模（MTM）模式通信的方法，包括与多个节点相关联的第一路由器。在子网内接收跨越时间段的超帧。超帧包括在信标周期内的信标时隙中的信标帧，每个信标帧在N个TM之一中，竞争接入周期（CAP）包括为每个TM提供的多个CAP时隙，以及基于轮询的争用 - 免费期（CFP）。信标帧提供超帧内的时间分配，包括CAP时隙的指定时间，以及CAP时隙中的CFP和TM分配。节点之一，子网中的另一路由器或另一子网中的路由器在PLC信道上发送广播帧。第一台路由器在该时间段内在每个N TM中的PLC信道上转发广播帧。

24. 发明申请

US20120275326A1 Non-Beacon Network Communications Using Frequency Subbands 有权
标题翻译：使用频率子带的非信标网络通信
公开(公告)号：US20120275326A1
公开(公告)日：2012-11-01
申请号：US13457590
申请日：2012-04-27
申请人： Ramanuja Vedantham , Kumaran Vijayasankar , Anand G. Dabak , Badri N. Varadarajan
发明人： Ramanuja Vedantham , Kumaran Vijayasankar , Anand G. Dabak , Badri N. Varadarajan
IPC分类号： H04L12/26
CPC分类号： H04W72/0453 , H04B3/544 , H04L41/0833 , H04W72/1231 , Y04S40/162
摘要： Systems and methods for designing, using, and/or implementing non-beacon network communications using frequency subbands are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include transmitting a beacon request message over a given one of a plurality of frequency subbands, receiving a plurality of beacons in response to having transmitted the beacon request message, each of the plurality of beacons received over a respective one of the plurality of frequency subbands, and calculating a downlink quality report based, at least in part, upon the received beacons. The method may also include transmitting the downlink quality report over each of the plurality of frequency subbands and receiving a subband allocation command in response to having transmitted the downlink quality report, the subband allocation command indicating a downlink subband assignment and an uplink subband assignment.
摘要翻译：描述了使用频率子带设计，使用和/或实现非信标网络通信的系统和方法。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，一种方法可以包括在多个频率子带中的给定的一个频带上传送信标请求消息，响应于已经发送了信标请求消息来接收多个信标，多个信标中的每一个在所述多个频率子带，并且至少部分地基于所接收的信标来计算下行链路质量报告。该方法还可以包括：响应于已经发送下行链路质量报告，指示下行链路子带分配的子带分配命令和上行链路子带分配，在多个频率子带中的每一个上发送下行链路质量报告，并接收子带分配命令。

25. 发明授权

US11368190B2 Beacon-enabled communications for variable payload transfers 有权
公开(公告)号：US11368190B2
公开(公告)日：2022-06-21
申请号：US13443123
申请日：2012-04-10
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： H04B3/54 , H04L5/00 , H04L25/02
摘要： Systems and methods for designing, using, and/or implementing beacon-enabled communications for variable payload transfers are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, a method may include implementing a superframe having a plurality of beacon slots, a plurality of intermediate slots following the beacon slots, and a poll-based Contention Free Period (CFP) slot following the intermediate slots. Each of the beacon slots and each of the intermediate slots may correspond to a respective one of a plurality of frequency subbands, and the poll-based CFP slot may correspond to a combination of the plurality of frequency subbands. The method may also include receiving a poll request over a first of the plurality of frequency subbands during the poll-based CFP slot, and then transmitting a data packet over a second of the plurality of frequency subbands during the poll-based CFP slot.

26. 发明授权

US09325373B2 Broadcast transmission for multi-tone mask mode operation 有权
标题翻译：广播传输多音蒙版模式操作
公开(公告)号：US09325373B2
公开(公告)日：2016-04-26
申请号：US13564440
申请日：2012-08-01
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Anand G. Dabak
IPC分类号： H04B3/54 , H04B3/30
CPC分类号： H04B3/544 , H04B3/30 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04H20/42 , H04L5/005 , H04L25/024
摘要： A method of Multi-Tone Mask (MTM) mode communications in a PLC network including a first router associated with a plurality of nodes. A super-frame spanning a time period is received within the subnetwork. The super-frame includes beacon frames in beacon slots within a beacon period, with each beacon frame in one of N TMs, a contention access period (CAP) including a plurality of CAP slots provided for each TM, and a poll-based contention-free period (CFP). The beacon frames provide time assignments within the super-frame including time assignments for the CAP slots and for the CFP, and TM assignments for the TMs in the CAP slots. One of nodes, another router in the subnetwork, or a router in another subnetwork transmits a broadcast frame on the PLC channel. The first router forwards the broadcast frame on the PLC channel in each of the N TMs within the time period.
摘要翻译：一种在PLC网络中的多音调掩模（MTM）模式通信的方法，包括与多个节点相关联的第一路由器。在子网内接收跨越时间段的超帧。超帧包括在信标周期内的信标时隙中的信标帧，每个信标帧在N个TM之一中，竞争接入周期（CAP）包括为每个TM提供的多个CAP时隙，以及基于轮询的争用 - 免费期（CFP）。信标帧提供超帧内的时间分配，包括CAP时隙的指定时间，以及CAP时隙中的CFP和TM分配。节点之一，子网中的另一路由器或另一子网中的路由器在PLC信道上发送广播帧。第一台路由器在该时间段内在每个N TM中的PLC信道上转发广播帧。

27. 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。

28. 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。

29. 发明授权

US08964786B2 Communications in beacon-enabled networks 有权
标题翻译：信标启用网络中的通信
公开(公告)号：US08964786B2
公开(公告)日：2015-02-24
申请号：US13435862
申请日：2012-03-30
申请人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J4/00 , H04B3/54 , H04L5/00
CPC分类号： H04B3/542 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L5/0073
摘要： Systems and methods for designing, using, and/or implementing communications 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 identifying one of a plurality of orthogonal superframes. The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe.
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。例如，方法可以包括识别多个正交超帧中的一个。所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。该方法然后可以包括使用所识别的超帧与另一设备进行通信。

30. 发明申请

US20120257639A1 Communications in Beacon-Enabled Networks 有权
标题翻译：信标网络中的通信
公开(公告)号：US20120257639A1
公开(公告)日：2012-10-11
申请号：US13435862
申请日：2012-03-30
申请人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J4/00 , H04J3/00 , H04B3/54
CPC分类号： H04B3/542 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L5/0073
摘要： Systems and methods for designing, using, and/or implementing communications 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 identifying one of a plurality of orthogonal superframes. The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe.
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。例如，方法可以包括识别多个正交超帧中的一个。所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。该方法然后可以包括使用所识别的超帧与另一设备进行通信。

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