公开(公告)号：US20170318453A1

公开(公告)日：2017-11-02

申请号：US15494103

申请日：2017-04-21

Applicant: Texas Instruments Incorporated

Inventor： ARVIND KANDHALU RAGHU ,  KAICHIEN TSAI ,  RAMANUJA VEDANTHAM

IPC: H04W8/22 ,  H04L12/24 ,  H04L12/26 ,  H04W4/00 ,  H04W84/18

CPC classification number: H04W8/22 ,  H04L41/082 ,  H04L43/10 ,  H04L43/16 ,  H04W4/80 ,  H04W84/18

Abstract: A BLE-Mesh device includes a controller coupled to a memory and to a transceiver adapted to be coupled to an antenna, wherein the controller implements an applications layer including BLE and Mesh applications, and a BLE stack and a mesh stack. The BLE-Mesh device has a switchable high-speed and low-speed mode and a speed switching algorithm for implementing a method of communications in BLE-mesh network. A broadcast ping is sent to neighborhood devices with a time to live (TTL)=1. A manufacturer's ID is analyzed to identify in a manufacturer's ID field in pongs received to determine a higher-speed capable device or a lower-speed device. A higher-speed data rate is utilized for mesh communications if a percentage of higher-speed capable devices is≧a threshold percentage or a lower-speed data rate is utilized for the mesh communications if the percentage of higher-speed capable devices is

公开(公告)号：US20170195228A1

公开(公告)日：2017-07-06

申请号：US15462703

申请日：2017-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  RAMANUJA VEDANTHAM ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM

IPC: H04L12/801 ,  H04B3/54 ,  H04L12/835

CPC classification number: H04L47/266 ,  H04B3/542 ,  H04B2203/5408 ,  H04L47/12 ,  H04L47/127 ,  H04L47/30 ,  H04L47/32 ,  Y02D50/10

Abstract: A method of powerline unications in a powerline communications (PLC) network including a first node and at least a second node. The first node transmits a data frame to the second node over a PLC channel. The second node has a data buffer for storing received information. The second node runs a flow control algorithm which determines a current congestion condition or a projected congestion condition of the data buffer based on at least one congestion parameter. The current congestion condition and projected congestion condition include nearly congested and fully congested. When the current or projected congestion condition is either nearly congested or fully congested, the second node transmits a BUSY including frame over the PLC channel to at least the first node. The first node defers transmitting of any frames to the second node for a congestion clearing wait time.

公开(公告)号：US20150085881A1

公开(公告)日：2015-03-26

申请号：US14556373

申请日：2014-12-01

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: A physical layer (PHY) data frame for use in conjunction with processor in a node, processor coupled to a program memory for storing a sequence of operating instructions. The frame has a preamble, PHY header, a MAC header and a MAC payload. The PHY header includes a destination address field having a destination address therein. The destination address is used by the processor to determine match with the node address.

Abstract translation: 与节点中的处理器结合使用的物理层（PHY）数据帧，耦合到程序存储器的处理器，用于存储操作指令序列。 帧具有前同步码，PHY报头，MAC报头和MAC有效载荷。 PHY标头包括其中具有目的地地址的目的地地址字段。 处理器使用目的地地址来确定与节点地址的匹配。

公开(公告)号：US20150071077A1

公开(公告)日：2015-03-12

申请号：US14540111

申请日：2014-11-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  RAMANUJA VEDANTHAM ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM

IPC: H04L12/825 ,  H04L12/801 ,  H04B3/54

CPC classification number: H04L47/266 ,  H04B3/542 ,  H04B2203/5408 ,  H04L47/12 ,  H04L47/127 ,  H04L47/30 ,  H04L47/32 ,  Y02D50/10

Abstract: A method of powerline communications in a powerline communications (PLC) network including a first PLC device and at least a second PLC device. The first PLC device transmits a data frame to the second node over a PLC channel. The second PLC device has a data buffer for storing received information. The second PLC device runs a flow control algorithm which determines a current congestion condition or a projected congestion condition of the data buffer based on at least one congestion parameter. The current congestion condition and projected congestion condition include nearly congested and fully congested. When the current or projected congestion condition is either nearly congested or fully congested, the second PLC device transmits a BUSY including frame over the PLC channel to at least the first PLC device. The first PLC device defers transmitting of any frames to the second PLC device for a congestion clearing wait time.

Abstract translation: 一种包括第一PLC设备和至少第二PLC设备的电力线通信（PLC）网络中的电力线通信的方法。 第一个PLC设备通过PLC通道将数据帧发送到第二个节点。 第二PLC设备具有用于存储接收到的信息的数据缓冲器。 第二PLC设备运行流控制算法，其基于至少一个拥塞参数来确定数据缓冲器的当前拥塞状况或预计拥塞状况。 目前的拥挤状况和预计的拥挤情况包括几乎拥挤和充分拥挤。 当当前或预计的拥塞状况几乎拥塞或完全拥塞时，第二PLC设备将至少包含PLC通道的包括帧的BUSY发送到至少第一PLC设备。 第一个PLC设备将任何帧的传输延迟到第二个PLC设备，以获得拥塞清除等待时间。

公开(公告)号：US20160308700A1

公开(公告)日：2016-10-20

申请号：US15007224

申请日：2016-01-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  TIMOTHY M. SCHMIDL ,  RAMANUJA VEDANTHAM

IPC: H04L27/12 ,  H04W72/04 ,  H04L29/06 ,  H04L27/26 ,  H04B1/707

CPC classification number: H04L27/12 ,  H04B1/707 ,  H04L1/007 ,  H04L1/0072 ,  H04L1/0086 ,  H04L27/0008 ,  H04L27/2601 ,  H04L69/22

Abstract: A wireless transmission having a header and a payload is sent by transmitting a preamble of the header with a first modulation, wherein the preamble carries a coded modulation indicator. The payload and a remainder of the header are transmitted with a modulation associated with the coded modulation indicator. When the transmission is received, the preamble is demodulated in accordance with the first modulation. The coded modulation indicator is then decoded, and the payload and the remainder of the header are demodulated in accordance with the modulation indicated by the decoded modulation indicator.

Abstract translation: 具有报头和有效载荷的无线传输是通过以第一调制方式发送报头的前同步码来发送的，其中前置码携带编码调制指示符。 通过与编码调制指示器相关联的调制来发送有效载荷和报头的剩余部分。 当接收到发送时，根据第一调制解调前导码。 然后对编码调制指示符进行解码，并根据由解码的调制指示符指示的调制来解调有效负载和报头的剩余部分。

公开(公告)号：US20170325127A1

公开(公告)日：2017-11-09

申请号：US15495441

申请日：2017-04-24

Applicant: Texas Instruments Incorporated

Inventor： ARVIND KANDHALU RAGHU ,  KAICHIEN TSAI ,  RAMANUJA VEDANTHAM

IPC: H04W28/14 ,  H04L12/721 ,  H04W74/08 ,  H04L12/26 ,  H04L12/801 ,  H04W8/00 ,  H04W40/02 ,  H04W84/18 ,  H04W4/00

CPC classification number: H04L45/72 ,  H04B7/15 ,  H04L47/34 ,  H04W4/80 ,  H04W8/005 ,  H04W28/14 ,  H04W40/023 ,  H04W74/0808 ,  H04W84/18 ,  H04W88/04

Abstract: A BLE-Mesh device includes a controller, an RF driver for driving the transceiver adapted to be coupled to an antenna, and a counter. The controller implements an applications layer including BLE and Mesh Applications, and a BLE stack and a mesh stack. A redundant traffic suppression relaying algorithm is for waiting for a random time within a selected time window from W1 to a later W2 before attempting to transmit a first packet that has the first relay device's sender's source (SRC) address and a sequence (SEQ) number. If during the random time a packet with both the device's SRC address and the SEQ number is received, the counter is incremented from an initial count to a current count. After the random time elapses, the current count is compared to a Cthreshold value, and the first packet is transmitted only if the current count

公开(公告)号：US20160270068A1

公开(公告)日：2016-09-15

申请号：US15054508

申请日：2016-02-26

Applicant: Texas Instruments Incorporated

Inventor： ALPER S. AKYUREK ,  ARITON E. XHAFA ,  JIANWEI ZHOU ,  RAMANUJA VEDANTHAM

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W72/0406

Abstract: In accordance with various embodiments, a system and method of distributed transmission resource management in a wireless network is disclosed. The transmission resource allocation is distributed throughout the network to all nodes. In distributed resource management, the resource allocation may be performed by child and/or remote nodes and child and/or remote nodes actively manage transmission resource allocation in the wireless network.

Abstract translation: 根据各种实施例，公开了一种在无线网络中分布式传输资源管理的系统和方法。 传输资源分配在整个网络中分布到所有节点。 在分布式资源管理中，资源分配可由子节点和/或远程节点执行，子节点和/或远程节点主动管理无线网络中的传输资源分配。

公开(公告)号：US20160087936A1

公开(公告)日：2016-03-24

申请号：US14797764

申请日：2015-07-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ALPER S. AKYUREK ,  ARITON E. XHAFA ,  JIANWEI ZHOU ,  RAMANUJA VEDANTHAM

IPC: H04L29/12

CPC classification number: H04L61/2015 ,  H04L61/2007 ,  H04L61/2092 ,  H04L61/6004 ,  H04L61/6059 ,  H04L61/6068

Abstract: A network includes at least two nodes that employ a routing protocol to communicate across a network. One of the nodes is a parent node and another of the nodes is a child node of the parent node. An address generator assigns a unique network address to the child node by appending an address value of a number of bits to a parent address of the parent node to create the unique network address for the child node.

Abstract translation: 网络包括至少两个采用路由协议来跨网络进行通信的节点。 其中一个节点是父节点，另一节点是父节点的子节点。 地址生成器通过将多个位的地址值附加到父节点的父地址来为子节点分配唯一的网络地址，以创建子节点的唯一网络地址。

公开(公告)号：US20160344443A1

公开(公告)日：2016-11-24

申请号：US14983136

申请日：2015-12-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  TIMOTHY SCHMIDL ,  RAMANUJA VEDANTHAM

IPC: H04B1/7143

Abstract: A system and method for enhanced channel hopping sequence is described. A pseudo random channel hopping sequence is redistributed using certain system specific parameters for separating adjacent transmission channels within a predetermined number of consecutive transmission channel numbers in the random channel hopping sequence to improve inter-channel interference between adjacent transmission channels.

Abstract translation: 描述了用于增强信道跳频序列的系统和方法。 伪随机信道跳频序列使用某些系统特定参数重新分布，用于在随机信道跳频序列中的预定数量的连续传输信道号内分离相邻传输信道，以改善相邻传输信道之间的信道间干扰。

公开(公告)号：US20160262098A1

公开(公告)日：2016-09-08

申请号：US15007221

申请日：2016-01-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KUMARAN VIJAYASANKAR ,  ARVIND KANDHALU RAGHU ,  RAMANUJA VEDANTHAM

IPC: H04W52/02 ,  H04B1/713

CPC classification number: H04W52/0209 ,  H04B1/713 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  Y02B70/30 ,  Y02D70/144 ,  Y02D70/40

Abstract: Power conservation is provided in a network of globally unsynchronized wireless communication devices that use asynchronous channel hopping. Each wireless communication device defines its own channel hopping schedule. The channel hopping schedules include channel hop intervals when the device's receiver is active for receiving transmissions, and sleep intervals when the receiver is in a low power sleep state. Parameters associated with the sleep intervals are defined by each wireless communication device independently of external constraint.

Abstract translation: 在使用异步信道跳频的全球非同步无线通信设备的网络中提供功率节省。 每个无线通信设备定义其自己的信道跳频调度。 信道跳频计划包括当设备的接收机用于接收传输时的信道跳跃间隔，以及当接收机处于低功率睡眠状态时的睡眠间隔。 与休眠间隔相关联的参数由每个无线通信设备独立于外部约束来定义。