公开(公告)号：US09584186B2

公开(公告)日：2017-02-28

申请号：US15072946

申请日：2016-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak

IPC: H04B3/54 ,  H04B3/30 ,  H04H20/42 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B3/544 ,  H04B3/30 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04H20/42 ,  H04L5/005 ,  H04L25/024

Abstract: A communications device for Multi-Tone Mask (MTM) mode communications at a first router on a powerline communications (PLC) channel in a PLC network including a subnetwork including at least said first router associated with a plurality of nodes, comprising. A memory which stores a broadcast transmission MTM (BT-MTM) communications algorithm. A modem with processor is coupled to the memory. The processor is programmed to implement said BT-MTM communications algorithm, said BT-MTM communications algorithm.

Abstract translation: 包括在包括至少包括与多个节点相关联的所述第一路由器的子网络的PLC网络中的电力线通信（PLC）通道上的第一路由器处的多音调掩模（MTM）模式通信的通信设备。 存储广播传输MTM（BT-MTM）通信算法的存储器。 具有处理器的调制解调器耦合到存储器。 该处理器被编程为实现所述BT-MTM通信算法，所述BT-MTM通信算法。

公开(公告)号：US09379904B2

公开(公告)日：2016-06-28

申请号：US15001925

申请日：2016-01-20

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak

IPC: H04L12/413 ,  H04L29/06 ,  H04B3/54

CPC classification number: H04L12/413 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5433 ,  H04L69/02

Abstract: Power Line Communications (PLC) device for enhanced carrier sense multiple access (CSMA) protocols are described. The PLC device includes a modem, an AC interface and a PLC engine. The engine is configured for transmitting PLC packets over a plurality of electrical wires using a particular channel. Transmitting a normal priority packet 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.

Abstract translation: 描述了用于增强载波侦听多路访问（CSMA）协议的电力线通信（PLC）设备。 PLC设备包括调制解调器，AC接口和PLC引擎。 发动机被配置为使用特定通道在多个电线上传输PLC分组。 发送正常优先级分组可以包括尝试在与竞争窗口（CW）中的随机生成的数字成比例的退避时间之后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。

公开(公告)号：US20160050045A1

公开(公告)日：2016-02-18

申请号：US14925030

申请日：2015-10-28

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Tarkesh Pande ,  Ramanuja Vedantham

IPC: H04L1/00 ,  H03M13/15 ,  G06F11/10 ,  H04B3/54

CPC classification number: H04L1/005 ,  G06F11/1004 ,  H03M13/09 ,  H03M13/1515 ,  H04B3/542 ,  H04B3/544 ,  H04B2203/5408 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1607 ,  H04L47/10

Abstract: Embodiments of methods and systems are presented for handling PHY frames with multiple Reed-Solomon encoded blocks in PLC networks. A PHY frame is receive from a PLC device, the PHY frame comprising two or more Reed-Solomon encoded blocks. A first Reed-Solomon encoded block comprises a media access control (MAC) header. The first Reed-Solomon encoded block is decoded. An error-detection check is performed on the first decoded Reed-Solomon encoded block.

Abstract translation: 提出了用于在PLC网络中处理具有多个Reed-Solomon编码块的PHY帧的方法和系统的实施例。 PHY帧从PLC设备接收，PHY帧包括两个或多个Reed-Solomon编码块。 第一Reed-Solomon编码块包括媒体访问控制（MAC）报头。 第一个Reed-Solomon编码块被解码。 对第一解码的Reed-Solomon编码块执行错误检测检查。

公开(公告)号：US09231657B2

公开(公告)日：2016-01-05

申请号：US13738883

申请日：2013-01-10

Applicant: Texas Instruments Incorporated

Inventor： Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Xiaolin Lu

IPC: H04J3/24 ,  H04B3/54 ,  H04L25/02

CPC classification number: H04B3/542 ,  H04B3/54 ,  H04L7/0079 ,  H04L25/028 ,  H04L25/0286

Abstract: Embodiments of methods and systems for adaptive sub-band point-to-point communication are presented. In one embodiment a method includes performing functions using a power line communication (PLC) transmitter device. The method may include generating a first data packet having a first adaptive sub-band information set, the first sub-band information set comprising information to be used by a PLC receiver for determining a sub-band hopping pattern. The method may also include transmitting the first data packet on a first PLC sub-band. Additionally, the method may include hopping to a second PLC sub-band, and generating a second data packet having a second adaptive sub-band information set, the second sub-band information set comprising information to be used by the PLC receiver for determine the sub-band hopping pattern. The method may further include transmitting the second data packet on the second PLC sub-band.

Abstract translation: 提出了自适应子带点对点通信的方法和系统的实施例。 在一个实施例中，一种方法包括使用电力线通信（PLC）发射机设备来执行功能。 该方法可以包括生成具有第一自适应子带信息集的第一数据分组，第一子带信息集包括由PLC接收机用于确定子带跳频模式的信息。 该方法还可以包括在第一PLC子带上发送第一数据分组。 此外，该方法可以包括跳跃到第二PLC子带，以及生成具有第二自适应子带信息集的第二数据分组，第二子带信息集包括由PLC接收机使用的信息，以确定 子带跳频图案。 该方法还可以包括在第二PLC子带上发送第二数据分组。

公开(公告)号：US20150351005A1

公开(公告)日：2015-12-03

申请号：US14825245

申请日：2015-08-13

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Robert Liang

IPC: H04W48/10 ,  H04W48/00 ,  H04B3/54 ,  H04L12/24 ,  H04W4/00 ,  H04W24/04

CPC classification number: H04W48/10 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5433 ,  H04L41/0631 ,  H04L69/324 ,  H04W4/80 ,  H04W12/06 ,  H04W24/04 ,  H04W48/16 ,  H04W48/17

Abstract: Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method performed by a PLC device, such as a PLC meter, may include active discovering and identifying at least one bootstrapping agent and a personal area network (PAN) identifier for one or more networks that are operating within a personal operating space of the PLC device. The device selects a target bootstrapping agent to use for the join process with a target network. The target bootstrapping agent may be selected from a list of bootstrapping agents associated with the target PAN identifier. If the attempt to join the target network fails, then the device further determines if other bootstrapping agents are associated with the target PAN identifier. The device selects an alternate target bootstrapping agent from the other bootstrapping agents that are associated with the target PAN identifier and reattempts the join process.

Abstract translation: 描述了用于电力线通信（PLC）的路由协议的系统和方法。 在一些实施例中，由诸如PLC计量器之类的PLC设备执行的方法可以包括主动发现和识别在个人操作中操作的一个或多个网络的至少一个自举代理和个人区域网络（PAN）标识符 PLC设备的空间。 设备选择目标引导代理用于与目标网络的连接进程。 可以从与目标PAN标识符相关联的引导代理的列表中选择目标引导代理。 如果加入目标网络的尝试失败，则设备进一步确定其他引导代理是否与目标PAN标识符相关联。 设备从与目标PAN标识符相关联的其他引导代理中选择备用目标引导代理，并重新尝试连接进程。

公开(公告)号：US09203757B2

公开(公告)日：2015-12-01

申请号：US13848054

申请日：2013-03-20

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Tarkesh Pande ,  Ramanuja Vedantham

IPC: H03M13/00 ,  H04L12/801 ,  H04L1/08 ,  H03M13/09 ,  H04L1/00 ,  H04B3/54 ,  H04L1/16

CPC classification number: H04L1/005 ,  G06F11/1004 ,  H03M13/09 ,  H03M13/1515 ,  H04B3/542 ,  H04B3/544 ,  H04B2203/5408 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1607 ,  H04L47/10

Abstract: Embodiments of methods and systems are presented for generating PHY frames with multiple Reed-Solomon encoded blocks in PLC networks. In one embodiment, a MAC layer divides a data frame from a higher level into data blocks. The MAC layer may add a MAC header and/or an error-detection code to each data block. The MAC layer then passes the data blocks to a PHY layer to be individually Reed-Solomon encoded and combined into a single PHY frame for transmission on a PLC network. In other embodiments, the MAC layer passes a single data frame to the PHY layer, which divides the MAC data frame into segments to be individually Reed-Solomon encoded. The individual Reed-Solomon encoded segments are combined into a single PHY frame for transmission on a PLC network.

Abstract translation: 提出了用于在PLC网络中生成具有多个Reed-Solomon编码块的PHY帧的方法和系统的实施例。 在一个实施例中，MAC层将数据帧从较高级划分成数据块。 MAC层可以向每个数据块添加MAC报头和/或错误检测码。 然后，MAC层将数据块传送到PHY层，以单独进行Reed-Solomon编码并组合成单个PHY帧，以在PLC网络上传输。 在其他实施例中，MAC层将单个数据帧传递到PHY层，该PHY层将MAC数据帧划分成单独的Reed-Solomon编码的段。 单独的Reed-Solomon编码段被组合成单个PHY帧以在PLC网络上传输。

公开(公告)号：US09182248B2

公开(公告)日：2015-11-10

申请号：US14017053

申请日：2013-09-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ram Krishnan ,  Kumaran Vijayasankar ,  Ramanuja Vedantham Vedantham

IPC: H04B1/00 ,  G01D4/00 ,  H04B3/54

CPC classification number: G01D4/002 ,  H04B3/54 ,  H04B2203/5408 ,  H04B2203/5433

Abstract: An apparatus for a power line communication network includes a power line transmitter/receiver, a processor coupled to the power line transmitter/receiver, and memory accessible to the processor. The processor is configured to store a routing table in the memory for routing packets in an upward direction towards a data concentrator (DC). However, no routing table is provided for routing packets in a downward direction away from the DC. Instead of using a routing table to route packets in the downward direction, the processor is configured to employ source routing in the downward direction.

Abstract translation: 用于电力线通信网络的装置包括电力线发送器/接收器，耦合到电力线发送器/接收器的处理器和处理器可访问的存储器。 处理器被配置为将存储路由表存储在存储器中，以向上朝向数据集中器（DC）的方向路由分组。 但是，不提供路由表用于沿远离DC的向下方向路由分组。 代替使用路由表来沿着向下的方向路由分组，处理器被配置为在向下的方向上采用源路由。

公开(公告)号：US09143327B2

公开(公告)日：2015-09-22

申请号：US14045960

申请日：2013-10-04

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Tarkesh Pande

IPC: H04L29/06 ,  H04L9/30 ,  H04B3/54 ,  G06F15/177

CPC classification number: H04L63/123 ,  G06F15/177 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04L9/0819 ,  H04L9/30 ,  H04L9/3242 ,  H04L63/0428 ,  H04L63/061 ,  H04L63/0876 ,  H04L2209/24

Abstract: Embodiments of the invention provide systems and methods for a cipher then segment approach in a Power Line Communication (PLC). A node or device generates frames to be transmitted to a destination node in the PLC network. A processor in the node is configured to generate a data payload comprising data to be sent to the destination node. The processor divides the data payload into two or more payload segments and encrypts the payload segments. The processor creates a frame for each of the encrypted payload segments, wherein each frame comprises a message integrity code. The processor creates a segment identifier for each frame using the message integrity code and an authentication key that is shared with the destination PLC node. The segment identifier is added to each frame.

Abstract translation: 本发明的实施例提供了用于电力线通信（PLC）中的密码然后段方法的系统和方法。 节点或设备生成要发送到PLC网络中的目标节点的帧。 节点中的处理器被配置为生成包括要发送到目的地节点的数据的数据净荷。 处理器将数据有效载荷分成两个或多个有效载荷段，并加密有效载荷段。 处理器为每个加密的有效载荷段创建一个帧，其中每个帧包括消息完整性代码。 处理器使用消息完整性代码和与目标PLC节点共享的认证密钥为每个帧创建段标识符。 段标识符被添加到每个帧。

公开(公告)号：US09143197B2

公开(公告)日：2015-09-22

申请号：US13655414

申请日：2012-10-18

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Robert Liang

IPC: H04B3/54

CPC classification number: H04W48/10 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5433 ,  H04L41/0631 ,  H04L69/324 ,  H04W4/80 ,  H04W12/06 ,  H04W24/04 ,  H04W48/16 ,  H04W48/17

Abstract: Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method performed by a PLC device, such as a PLC meter, may include identifying at least one bootstrapping agent and a personal area network (PAN) identifier for one or more networks that are operating within a personal operating space of the PLC device. The device selects a target bootstrapping agent to use for the join process with a target network. The target bootstrapping agent may be selected from a list of bootstrapping agents associated with the target PAN identifier. If the attempt to join the target network fails, then the device further determines if other bootstrapping agents are associated with the target PAN identifier. The device selects an alternate target bootstrapping agent from the other bootstrapping agents that are associated with the target PAN identifier and reattempts the join process.

Abstract translation: 描述了用于电力线通信（PLC）的路由协议的系统和方法。 在一些实施例中，由诸如PLC计量器之类的PLC设备执行的方法可以包括标识在一个或多个网络中操作的至少一个引导代理和个人区域网络（PAN）标识符，所述网络在个人操作空间内操作 PLC设备。 设备选择目标引导代理用于与目标网络的连接进程。 可以从与目标PAN标识符相关联的引导代理的列表中选择目标引导代理。 如果加入目标网络的尝试失败，则设备进一步确定其他引导代理是否与目标PAN标识符相关联。 设备从与目标PAN标识符相关联的其他引导代理中选择备用目标引导代理，并重新尝试连接进程。

公开(公告)号：US09136908B2

公开(公告)日：2015-09-15

申请号：US13910125

申请日：2013-06-05

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Tarkesh Pande

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5433 ,  H04B2203/5445

Abstract: Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together.

Abstract translation: 公开了用于支持电力线通信（PLC）网络中的多种技术共存的方法和系统的实施例。 长时间的共存前导序列可以被被强制退出PLC信道的设备多次发送。 长的共存序列为设备提供了一种使用其他技术从信道上的设备请求信道访问的方法。 在发送长共存前导序列之后，设备可以发送数据分组。 网络占空比时间也可以被定义为同一网络的节点访问信道的最大允许持续时间。 当发生网络占空比时间时，所有节点将在再次发送之前退出占空比扩展帧间间隔的信道。 长共存前序序列和网络占空比时间可以一起使用。