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    Systems and methods for implementing application profiles and device classes in power line communication (PLC) environments
    21.
    发明授权
    Systems and methods for implementing application profiles and device classes in power line communication (PLC) environments 有权

    公开(公告)号：US10277276B2

    公开(公告)日：2019-04-30

    申请号：US15793900

    申请日：2017-10-25

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Il Han Kim ,  Anand G. Dabak ,  Badri N Varadarajan

    IPC: H04B3/54 ,  H04L12/911

    Abstract: Systems and methods for application profiles and device classes in power line communications (PLCs) are described. In some embodiments, a PLC device has the device class defined by a PHY layer and may include a processor and a memory coupled to the processor. The memory may be configured to store program instructions, which may be executable by the processor to cause the PLC device to communicate with a higher-level PLC apparatus over a power line using a frequency band. The frequency band may be selected based upon an application profile and/or a device class associated with the PLC device. In some implementations, the higher-level PLC apparatus may include a PLC gateway or a data concentrator, and the PLC device may include a PLC modem or the like. Examples of application profiles include access communications, in-premises connectivity, AC charging, and/or DC charging. Device classes may represent a minimum communication data rate and/or an operating frequency band restriction of the PLC device.

    Enhanced Carrier Sense Multiple Access (CSMA) Protocols
    23.
    发明申请
    Enhanced Carrier Sense Multiple Access (CSMA) Protocols 审中-公开
    增强载波侦听多路访问（CSMA）协议

    公开(公告)号：US20160308689A1

    公开(公告)日：2016-10-20

    申请号：US15192932

    申请日：2016-06-24

    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来发送帧，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。

    COMMUNICATIONS DEVICE FOR MULTI-TONE MASK MODE OPERATION
    24.
    发明申请
    COMMUNICATIONS DEVICE FOR MULTI-TONE MASK MODE OPERATION 审中-公开
    用于多音蒙版模式操作的通信设备

    公开(公告)号：US20160197647A1

    公开(公告)日：2016-07-07

    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 ,  H04H20/42 ,  H04L25/02 ,  H04L5/00

    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. 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.

    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。 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。

    Hybrid Communication Networks
    29.
    发明申请
    Hybrid Communication Networks 审中-公开
    混合通信网络

    公开(公告)号：US20150085883A1

    公开(公告)日：2015-03-26

    申请号：US14557858

    申请日：2014-12-02

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak ,  Badri N. Varadarajan ,  Il Han Kim ,  Xiaolin Lu

    IPC: H04L5/00 ,  H04B3/54

    CPC classification number: H04L5/0048 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5466 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0078 ,  H04L5/0094 ,  H04L25/0272

    Abstract: 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.

    Abstract translation: 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。

    Channel Selection in Power Line Communications
    30.
    发明申请
    Channel Selection in Power Line Communications 审中-公开
    电力线通信中的通道选择

    公开(公告)号：US20140355474A1

    公开(公告)日：2014-12-04

    申请号：US14464752

    申请日：2014-08-21

    Applicant: Texas Instruments Incorporated

    Inventor： Shu Du ,  Anand G. Dabak ,  Xiaolin Lu ,  Il Han Kim

    IPC: H04B3/54 ,  H04L12/26

    CPC classification number: H04B3/54 ,  H04B3/544 ,  H04B2203/5408 ,  H04B2203/5466 ,  H04B2203/5495 ,  H04L7/00 ,  H04L12/10 ,  H04L43/0823

    Abstract: A power line communication (PLC) device comprises a processor and a memory coupled to the processor. The memory is configured to store program instructions executable by the processor to cause the PLC device perform operations. One or more time slots are sequentially scan in each of a plurality of frequency bands. A packet transmitted by a second PLC device to the PLC device over one of the plurality of frequency bands is detected. Additional packets received from the second PLC device across the plurality of frequency bands based, at least in part, upon the detected packet are synchronized. The additional packets are organized in a plurality of frames, each of the plurality of frames having been transmitted by the second PLC device to the PLC device over a respective one of the plurality of frequency bands. Each frame has a plurality of time slots, and each time slot has a pair of beacon and bandscan packets, Each bandscan packet includes information indicating a frequency band distinct from any of the plurality of different frequency bands to be used by the second PLC device to communicate with the first PLC device in a direction from the second PLC device to the first PLC device.

    Abstract translation: 电力线通信（PLC）设备包括处理器和耦合到处理器的存储器。 存储器被配置为存储可由处理器执行的程序指令，以使PLC设备执行操作。 在多个频带的每一个中顺序地扫描一个或多个时隙。 检测由第二PLC设备通过多个频带中的一个发送到PLC设备的分组。 至少部分地基于检测到的分组，跨多个频带从第二PLC设备接收的附加分组被同步。 所述附加分组被组织成多个帧，所述多个帧中的每一个已经由所述第二PLC设备通过所述多个频带中的相应一个频带发送到所述PLC设备。 每帧具有多个时隙，并且每个时隙具有一对信标和频带扫描分组，每个频带扫描分组包括指示要由第二PLC设备使用的多个不同频带中的任一个的频带的信息， 与第一PLC设备在从第二PLC设备到第一PLC设备的方向通信。

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