公开(公告)号：US20170142237A1

公开(公告)日：2017-05-18

申请号：US15419045

申请日：2017-01-30

Applicant: Texas Instruments Incorporated

Inventor： Gang Xu ,  Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Anand G Dabak ,  Tarkesh Pande ,  Il Han Kim ,  Xiaolin Lu

IPC: H04L29/06 ,  H04B3/54

CPC classification number: H04L69/22 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408

Abstract: In a disclosed embodiment, a method for communication in a network includes receiving, at a first device registered to the network, a physical layer (PHY) frame that includes a PHY header and a MAC header. The PHY frame may further include a MAC payload. The PHY header includes a destination address field. The method further includes comparing a network address of the first device to the destination address field to determine whether the destination address field stores a value having the same number of bits as the network address. When the comparison indicates that the value stored by the destination address field does not have the same number of bits as the network address, the method skips decoding the MAC header and the MAC payload.

公开(公告)号：US09602161B2

公开(公告)日：2017-03-21

申请号：US14688526

申请日：2015-04-16

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Minghua Fu ,  Xiaolin Lu

IPC: H04B3/56 ,  H04B3/54

CPC classification number: H04B3/56 ,  H04B3/54 ,  H04B3/542

Abstract: A power line communication (PLC) network includes a plurality of PLC devices. One such PLC device may include a transmitter power control system that determines a minimum level of transmission power for sufficiently communicating a plurality of data packets from the PLC device over the PLC network to a first destination PLC device on the PLC network by executing a training sequence over the PLC network via an electrical power distribution system. The transmitter power control system applies this minimum level of transmission power to transmit the data packets to the first destination PLC device.

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：US09172517B2

公开(公告)日：2015-10-27

申请号：US14280232

申请日：2014-05-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Xiaolin Lu ,  Jianwei Zhou

IPC: G08C17/00 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W52/02 ,  H04L5/0053 ,  H04L67/12 ,  H04W52/0219 ,  Y02D70/00 ,  Y02D70/144

Abstract: A device and method for controlling radio power in a wireless sensor network. A wireless sensor device includes a wireless transceiver, a white list generator, and power control logic. The wireless transceiver is configured to transmit and receive via a wireless sensor network. The white list generator configured to identify wireless sensor nodes that communicate directly with the wireless sensor device via the wireless sensor network, to identify time slots assigned for communication between the wireless sensor device and each of the identified wireless sensor nodes, and to create and maintain a list of the identified wireless sensor nodes and corresponding time slots. The power control logic is configured to power the transceiver for reception of transmissions from each identified wireless sensor node based on the identified time slots corresponding to the identified wireless sensor node provided in the list.

Abstract translation: 一种用于控制无线传感器网络中的无线电功率的装置和方法。 无线传感器装置包括无线收发器，白名单发生器和功率控制逻辑。 无线收发器经配置以经由无线传感器网络进行发送和接收。 白名单发生器被配置为识别经由无线传感器网络与无线传感器设备直接通信的无线传感器节点，以识别为无线传感器设备和每个识别的无线传感器节点之间的通信分配的时隙，并且创建和维护 所识别的无线传感器节点和对应时隙的列表。 功率控制逻辑被配置为基于与列表中提供的所识别的无线传感器节点相对应的所识别的时隙来为收发信机供电以接收来自每个识别的无线传感器节点的传输。

公开(公告)号：US09172431B2

公开(公告)日：2015-10-27

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 ,  H04L12/10 ,  H04L12/26 ,  H04L7/00

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。

公开(公告)号：US20150171922A1

公开(公告)日：2015-06-18

申请号：US14630990

申请日：2015-02-25

Applicant: Texas Instruments Incorporated

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

IPC: H04B3/54 ,  H04L7/00

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

Abstract: Systems for channel selection in power line communications (PLC) are described. In some embodiments, a PLC device may include a processor and a memory. The memory stores instructions executable by the processor to cause the PLC device perform operations. One or more time slots in each of a plurality of frequency bands are sequentially scanned. 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 are synchronized across the plurality of frequency bands based, at least in part, upon the detected packet. 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.

Abstract translation: 描述了电力线通信（PLC）中通道选择的系统。 在一些实施例中，PLC设备可以包括处理器和存储器。 存储器存储可由处理器执行以使PLC设备执行操作的指令。 顺序地扫描多个频带中的每一个中的一个或多个时隙。 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，从第二PLC设备接收的附加分组跨多个频带同步。 附加分组被组织成多个帧。 多个帧中的每一个已经由第二PLC设备通过多个频带中的相应一个发送到PLC设备。 每个帧具有多个时隙，并且每个时隙具有一对信标和带扫描分组。

公开(公告)号：US20150163134A1

公开(公告)日：2015-06-11

申请号：US14624065

申请日：2015-02-17

Applicant: Texas Instruments Incorporated

Inventor： Ramachandran Ananthakrishnan ,  Shu Du ,  Xiaolin Lu

IPC: H04L12/741 ,  H04B3/54

CPC classification number: H04L45/54 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5445 ,  H04L45/12 ,  H04L45/34 ,  H04W40/28

Abstract: Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method may include transmitting a one-hop broadcast request message to a plurality of PLC devices in a mesh network and receiving a response from each of the devices. The method may also include selecting one of the devices as a bootstrapping agent, sending a join request to a bootstrapping server through the bootstrapping agent, and, in response to successfully joining the network, setting the bootstrapping agent as a next hop toward a bootstrapping server. In another embodiment, a method may include maintaining a routing table for a plurality of PLC devices in a mesh network, receiving a join request from a PLC device, accepting the request, and updating the table to add a record corresponding to the PLC device; the record setting the bootstrapping agent as a penultimate hop toward the PLC device.

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，一种方法可以包括向网状网络中的多个PLC设备发送一跳广播请求消息并从每个设备接收响应。 该方法还可以包括选择一个设备作为引导代理，通过引导代理向引导服务器发送加入请求，并且响应于成功加入网络，将引导代理设置为向引导服务器的下一跳 。 在另一个实施例中，一种方法可以包括维护网状网络中的多个PLC设备的路由表，从PLC设备接收连接请求，接受该请求，并更新该表以添加对应于该PLC设备的记录; 记录将引导代理设置为PLC设备的倒数第二跳。

公开(公告)号：US20140016625A1

公开(公告)日：2014-01-16

申请号：US14028982

申请日：2013-09-17

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Ariton E. Xhafa ,  Xiaolin Lu ,  Josef Peery

IPC: H04L5/22

CPC classification number: H04W16/14 ,  H04L5/22 ,  H04W4/80 ,  H04W56/00 ,  H04W72/0446 ,  H04W88/06

Abstract: A system and method for arbitrating channel access in a wireless device including co-located network transceivers are disclosed herein. A wireless device includes a first wireless transceiver and a second wireless transceiver. The first transceiver is configured for operation with a first wireless network. The second transceiver is configured for operation with a second wireless network. The wireless device further includes logic that determines which of the first and second transceivers is enabled to transmit at a given time. The logic causes the first transceiver to transmit a notification signal indicating a time period during which the second transceiver of the wireless device will perform a first wireless transaction, and during which, based on receiving the notification signal, a different wireless device performs a second wireless transaction via the second wireless network without transmitting a notification signal.

Abstract translation: 本文公开了一种用于在包括共位网络收发器的无线设备中仲裁信道接入的系统和方法。 无线设备包括第一无线收发器和第二无线收发器。 第一收发器被配置为与第一无线网络一起操作。 第二收发器被配置为与第二无线网络一起操作。 无线设备还包括确定在给定时间能够发送第一和第二收发器中的哪一个的逻辑。 该逻辑使得第一收发器发送指示无线设备的第二收发器将执行第一无线交易的时间段的通知信号，并且在此期间，基于接收到该通知信号，不同的无线设备执行第二无线 经由第二无线网络进行交易，而不发送通知信号。

公开(公告)号：US20130287044A1

公开(公告)日：2013-10-31

申请号：US13888621

申请日：2013-05-07

Applicant: Texas Instruments Incorporated

Inventor： Jin-Meng Ho ,  Donald P. Shaver ,  Xiaolin Lu

IPC: H04W28/06

CPC classification number: H04W24/02 ,  H04B7/04 ,  H04L1/0006 ,  H04L1/1621 ,  H04L1/1671 ,  H04L49/9057 ,  H04W28/06 ,  H04W28/065

Abstract: Apparatus and methods implement aggregation frames and allocation frames. The aggregation frames include a plurality of MSDUs or fragments thereof aggregated or otherwise combined together. An aggregation frame makes more efficient use of the wireless communication resources. The allocation frame defines a plurality of time intervals. The allocation frame specifies a pair of stations that are permitted to communicate with each other during each time interval as well as the antenna configuration to be used for the communication. This permits stations to know ahead of time when they are to communicate, with which other stations and the antenna configuration that should be used. A buffered traffic field can also be added to the frames to specify how much data remains to be transmitted following the current frame. This enables network traffic to be scheduled more effectively.

公开(公告)号：US20240349167A1

公开(公告)日：2024-10-17

申请号：US18626425

申请日：2024-04-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Jianwei Zhou ,  Xiaolin Lu

IPC: H04W40/24 ,  H04B1/7156 ,  H04L45/02 ,  H04W84/18 ,  H04W84/20

CPC classification number: H04W40/248 ,  H04B2001/71563 ,  H04L45/026 ,  H04W84/18 ,  H04W84/20

Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.