公开(公告)号：US20160087678A1

公开(公告)日：2016-03-24

申请号：US14956520

申请日：2015-12-02

Applicant: Texas Instruments Incorporated

Inventor： Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Xiaolin Lu

IPC: H04B3/54 ,  H04L7/00 ,  H04L25/02

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

Abstract: Embodiments of methods 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 receiving a first data packet having a first adaptive sub-band information set, the first sub-band information set comprising information from a PLC transmitter. The method may also include extracting the first sub-band information set from the first data packet. Additionally, the method may include analyzing the first sub-band information set to determine a transmitter sub-band hopping pattern. The method may further include setting a corresponding receiver sub-band hopping pattern synchronized to the sub-band hopping patter used by the PLC transmitter and hopping to a subsequent sub-band as defined by the receiver sub-band hopping pattern.

Abstract translation: 介绍了自适应子带点对点通信方法的实施例。 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。 所述方法可以包括接收具有第一自适应子带信息集的第一数据分组，所述第一子带信息集包括来自PLC发射机的信息。 该方法还可以包括从第一数据分组提取第一子带信息集。 另外，该方法可以包括分析第一子带信息集以确定发射机子带跳频模式。 该方法可以进一步包括设置与由PLC发射机使用的子带跳频模式同步的对应的接收机子带跳频模式，并跳频到由接收机子带跳频模式定义的后续子带。

公开(公告)号：US20160037449A1

公开(公告)日：2016-02-04

申请号：US14751602

申请日：2015-06-26

Applicant: Texas Instruments Incorporated

Inventor： Arvind Kandhalu Raghu ,  Ariton E. Xhafa ,  Jianwei Zhou ,  Ramanuja Vedantham ,  Xiaolin Lu

IPC: H04W52/02 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

CPC classification number: H04W52/0209 ,  H04L5/0048 ,  H04W48/00 ,  H04W56/001 ,  H04W72/12 ,  H04W84/10 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

Abstract: A device may be coupled to a time slot based communication system and receive a timing beacon packet that is broadcast in a time slot of the communication system at a periodic rate, in which the network uses a time slotted channel hopping protocol of sequential frames each having a plurality of time slots. The device may synchronize its time base to the timing beacon. The device may calculate a sleep time corresponding to a number of time slots until a next time slot that is scheduled for use by the device and then place the device in a sleep mode. The device may be awakened after the sleep time and operate during the next time slot. The device may repeat the process of calculating a sleep time, going into sleep mode, and waking for operation after the sleep time in order to reduce power consumption.

Abstract translation: 设备可以耦合到基于时隙的通信系统，并且以周期速率接收在通信系统的时隙中广播的定时信标分组，其中网络使用具有连续帧的时隙信道跳频协议，每个时隙信道分组具有 多个时隙。 设备可以将其时基同步到定时信标。 设备可以计算对应于多个时隙的休眠时间，直到调度供设备使用的下一个时隙，然后将设备置于睡眠模式。 睡眠时间后可能会唤醒设备，并在下一个时间段内进行操作。 该装置可以重复计算休眠时间，进入睡眠模式，以及在休眠时间之后唤醒操作以减少功耗的过程。

公开(公告)号：US20150381355A1

公开(公告)日：2015-12-31

申请号：US14826342

申请日：2015-08-14

Applicant: Texas Instruments Incorporated

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Tarkesh Pande

IPC: H04L9/08 ,  H04B3/54

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：US20150334728A1

公开(公告)日：2015-11-19

申请号：US14813175

申请日：2015-07-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W72/12

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide a communication device. A device comprises at least two dissimilar network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems. In some embodiments, a device is able to transmit a silencing frame during a transmission window within a lower priority technology network interval. A transceiver is able to calculate a transmission window to end by at least a duration of time to complete transmission of the silencing frame prior to the beginning of next immediate string of at least one higher priority network technology subsystem interval, and transmit a silencing frame during a lower priority technology network interval during the transmission window.

Abstract translation: 实施例提供一种通信设备。 一种设备包括至少两个不同的网络技术子系统，其至少一个子系统的优先级低于至少另一个不同子系统。 在一些实施例中，设备能够在较低优先级技术网络间隔内的传输窗口期间传输消音帧。 收发器能够计算传输窗口，以在至少一个持续时间内结束至少一个较高优先级的网络技术子系统间隔的下一个即时串的开始之前完成消音帧的传输，并在 传输窗口中优先级较低的技术网络间隔。

公开(公告)号：US09160410B2

公开(公告)日：2015-10-13

申请号：US13665343

申请日：2012-10-31

Applicant: Texas Instruments Incorporated

Inventor： Tarkesh Pande ,  Ramanuja Vedantham ,  Il Han Kim ,  Anand G. Dabak

IPC: H04L12/413 ,  H04J3/02 ,  H04L25/00 ,  H04B3/54

CPC classification number: H04B3/544 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04L12/2803 ,  H04L12/2836 ,  H04L12/413 ,  H04L41/0896 ,  H04L47/36 ,  H04L47/765 ,  H04L2012/2843

Abstract: Systems and methods for implementing coexistence by requesting access to a channel in power line communications (PLC) are described. In an illustrative embodiment, a method performed by a PLC device, such as a PLC meter, may include detecting a communication from foreign PLC device on a PLC network in response to a foreign preamble received by the PLC device, determining whether a threshold back-off duration has been reached, and transmitting a channel access request in response to a determination that the threshold back-off duration has been reached.

Abstract translation: 描述了通过请求访问电力线通信（PLC）中的通道来实现共存的系统和方法。 在说明性实施例中，由PLC装置（诸如PLC计量器）执行的方法可以包括响应于由PLC设备接收到的外部前置码来检测来自PLC网络上的外部PLC设备的通信， 已经达到关闭持续时间，并且响应于已经达到阈值回退持续时间的确定，发送频道访问请求。

公开(公告)号：US09131518B2

公开(公告)日：2015-09-08

申请号：US13748083

申请日：2013-01-23

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W4/00 ,  H04W72/12 ,  H04W16/14 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide systems and methods to optimize the time when to transmit a silencing frame, and hence, improve the overall network throughput and avoid access point transmission rate fall-back mechanism having an avalanche effect during coexistence of dissimilar wireless network technologies. A device comprises at least two dissimilar network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems. In some embodiments, a device is able to transmit a silencing frame during a transmission window within a lower priority technology network interval. In other embodiments, a device calculates a transmission window, the transmission window to occur within a lower priority technology network interval, and transmits a silencing frame during the transmission window. In further embodiments, a device is able to calculate a transmission window to occur during a lower priority technology network interval, and transmit a silencing frame during the calculated transmission window.

Abstract translation: 实施例提供了用于优化传输消音帧的时间的系统和方法，从而提高整体网络吞吐量，并避免在不同的无线网络技术共存期间具有雪崩效应的接入点传输速率回退机制。 一种设备包括至少两个不同的网络技术子系统，其至少一个子系统的优先级低于至少另一个不同子系统。 在一些实施例中，设备能够在较低优先级技术网络间隔内的传输窗口期间传输消音帧。 在其他实施例中，设备计算发送窗口，发送窗口发生在较低优先级的技术网络间隔内，并且在发送窗口期间发送消音帧。 在另外的实施例中，设备能够计算在较低优先级技术网络间隔期间发生的传输窗口，并且在计算的传输窗口期间传送消音帧。

公开(公告)号：US20150236753A1

公开(公告)日：2015-08-20

申请号：US14619514

申请日：2015-02-11

Applicant: Texas Instruments Incorporated

Inventor： Tarkesh Pande ,  Ramanuja Vedantham ,  Il Han Kim ,  Anand G. Dabak

IPC: H04B3/54 ,  H04L12/805 ,  H04L12/919 ,  H04L12/24

CPC classification number: H04B3/544 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04L12/2803 ,  H04L12/2836 ,  H04L12/413 ,  H04L41/0896 ,  H04L47/36 ,  H04L47/765 ,  H04L2012/2843

Abstract: Systems and methods for implementing coexistence by requesting access to a channel in power line communications (PLC) are described. In an illustrative embodiment, a method performed by a PLC device, such as a PLC meter, may include detecting a communication from foreign PLC device on a PLC network in response to a foreign preamble received by the PLC device, determining whether a threshold back-off duration has been reached, and transmitting a channel access request in response to a determination that the threshold back-off duration has been reached.

Abstract translation: 描述了通过请求访问电力线通信（PLC）中的通道来实现共存的系统和方法。 在说明性实施例中，由PLC装置（诸如PLC计量器）执行的方法可以包括响应于由PLC设备接收到的外部前置码来检测来自PLC网络上的外部PLC设备的通信， 已经达到关闭持续时间，并且响应于已经达到阈值回退持续时间的确定，发送频道访问请求。

公开(公告)号：US09036609B2

公开(公告)日：2015-05-19

申请号：US14496923

申请日：2014-09-25

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04W72/12 ,  H04W16/14 ,  H04W88/06 ,  H04W4/00 ,  H04W84/12

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide systems and methods to optimize the time when to receive transmissions from dissimilar wireless networks, and hence, improve the overall network throughput and avoid access point transmission rate fall-back mechanism having an avalanche effect during coexistence of dissimilar wireless network technologies. A receiver comprises at least two dissimilar network technology subsystems and is able to receive transmissions from dissimilar wireless network technology subsystems during a predetermined reception window.

Abstract translation: 实施例提供了用于优化从不同的无线网络接收传输的时间的系统和方法，并且因此提高了整体网络吞吐量，并且避免了在不同的无线网络技术共存期间具有雪崩效应的接入点传输速率下降机制。 接收机包括至少两个不同的网络技术子系统，并且能够在预定的接收窗口期间从不同的无线网络技术子系统接收传输。

公开(公告)号：US20150110130A1

公开(公告)日：2015-04-23

申请号：US14519990

申请日：2014-10-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ramanuja Vedantham ,  Jiun-Ren Lin ,  Xiaolin Lu

IPC: H04L12/721

CPC classification number: H04L45/70 ,  H04L45/124 ,  H04W40/12 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/34

Abstract: A method and apparatus for dynamic medium switching in a hybrid network. A method for packet transmission by a combo device includes maintaining a wireless network confidence rating value that is indicative of packet transfer reliability of a wireless network accessed by the device. A wired network confidence rating value that is indicative of packet transfer reliability of a wired network accessed by the device is also maintained. One of the wireless network and the wired network to be used for initial transmission of the data packet is selected based on which of the wireless confidence rating value and the wired confidence rating value is indicative of a higher likelihood of the packet being successfully transmitted. The packet is routed to be transmitted via the selected network.

Abstract translation: 一种用于混合网络中的动态媒体交换的方法和装置。 由组合设备进行分组传输的方法包括维护指示由设备访问的无线网络的分组传送可靠性的无线网络置信度等级值。 还保持了指示由设备访问的有线网络的分组传送可靠性的有线网络置信度值。 基于无线置信度值和有线置信度值中的哪一个指示分组成功发送的较高可能性来选择要用于数据分组的初始传输的无线网络和有线网络之一。 路由分组经由所选网络传输。

公开(公告)号：US20150106519A1

公开(公告)日：2015-04-16

申请号：US14516168

申请日：2014-10-16

Applicant: Texas Instruments Incorporated

Inventor： Xiaolin Lu ,  Robert Liang ,  Mehul Soman ,  Kumaran Vijayasankar ,  Ramanuja Vedantham

IPC: H04L29/12 ,  H04L29/08

CPC classification number: H04L67/28 ,  H04W4/20 ,  H04W80/02

Abstract: A communication system and method includes receiving payload data of first and second media access control (MAC) frames. A MAC-level protocol is identified in response to the indication of the selected network for each of the first and second MAC frames. The payload data of the first and second MAC frames is transmitted and/or received across respective networks transmitted using, for example, power line communications signals over a common communications medium. The common communications medium is operable for carrying signals of a plurality of networks.

Abstract translation: 通信系统和方法包括：接收第一和第二媒体访问控制（MAC）帧的有效载荷数据。 响应于所选择的网络对于第一和第二MAC帧中的每一个的指示来识别MAC级协议。 在通过公共通信介质使用例如电力线通信信号发送的各个网络上发送和/或接收第一和第二MAC帧的净荷数据。 公共通信介质可操作用于承载多个网络的信号。