公开(公告)号：US20170041738A1

公开(公告)日：2017-02-09

申请号：US15298829

申请日：2016-10-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June Chul Roh

IPC: H04W4/00 ,  H04W52/36 ,  H04L29/06

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment using M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK. Also, the PHY layer uses a constant symbol rate for BAN packet transmissions.

Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 PHY层被配置为使用M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK在有限多径环境中进行身体局域网（BAN）操作。 此外，PHY层对于BAN分组传输使用恒定的符号率。

公开(公告)号：US20160353433A1

公开(公告)日：2016-12-01

申请号：US15236276

申请日：2016-08-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Pierre Bertrand ,  Srinath Hosur ,  Vijay Pothukuchi ,  Mohamed Farouk Mansour

IPC: H04W72/04 ,  H04L1/18 ,  H03M13/15 ,  H04L1/00

CPC classification number: H04W72/0413 ,  H03M13/1515 ,  H03M13/2966 ,  H03M13/611 ,  H03M13/618 ,  H03M13/635 ,  H04H20/38 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0071 ,  H04L1/0076 ,  H04L1/1812 ,  H04W72/0446

Abstract: A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.

Abstract translation: 一种在无线接入网络中的无线回程远程单元处的上行链路（UL）无线回程通信的方法，包括通过下行链路（DL）物理层广播信道接收无线电帧的配置和传输调度，其中所述传输调度包括传输 生成UL数据帧的UL数据帧的生成包括对数据比特流执行前向纠错（FEC）编码以生成多个FEC码字，其中执行FEC编码包括执行Reed Solomon（ RS）编码以产生多个RS码字，在RS码字上执行字节交织，并对字节交织的RS码字执行Turbo编码，以生成一个或多个Turbo码字，其中每个Turbo码字从更多的编码 而不是一个RS码字，并且根据传输分配来发送UL数据帧。

公开(公告)号：US09310868B2

公开(公告)日：2016-04-12

申请号：US13862620

申请日：2013-04-15

Applicant: Texas Instruments Incorporated

Inventor： Deric W. Waters ,  Srinath Hosur ,  Anand G. Dabak

IPC: G06F1/32 ,  G06F1/26

CPC classification number: G06F1/266 ,  G06F1/263 ,  G06F1/32

Abstract: A method and apparatus are provided. The VBUS conductor is checked to determine whether the voltage on the VBUS conductor is greater than a vSafe0V voltage within a dead battery detect time interval, and the device policy manager is instructed to apply a vSafeDB voltage to the VBUS conductor if the voltage on the VBUS conductor is greater than the vSafe0V voltage. The policy engine waits for a bit stream to be detected within a bit stream detect timer interval. If the bit stream is not detected within the bit stream detect timer interval, then the device policy manager is instructed to apply the vSafe0V voltage to the VBUS conductor. The device policy manager is instructed to apply a vSafe5V voltage to the VBUS conductor if the bit stream is detected, and the policy engine waits for the bit stream to stop within a device ready timer interval. If the bit stream has stopped within the device ready timer interval, then the policy engine sends capabilities as a source port.

Abstract translation: 提供了一种方法和装置。 检查VBUS导体以确定VBUS导体中的电压是否大于电池电池检测时间间隔内的vSafe0V电压，并且指示设备策略管理器向VBUS导体施加vSafeDB电压，如果VBUS上的电压 导体大于vSafe0V电压。 策略引擎等待在位流检测定时器间隔内检测到位流。 如果在比特流检测定时器间隔内没有检测到位流，则指示设备策略管理器将vSafe0V电压施加到VBUS导体。 如果检测到比特流，则指示设备策略管理器将vSafe5V电压应用于VBUS导体，并且策略引擎在设备就绪定时器间隔内等待比特流停止。 如果位流在设备就绪定时器间隔内停止，则策略引擎将功能作为源端口发送。

公开(公告)号：US20160056920A1

公开(公告)日：2016-02-25

申请号：US14930230

申请日：2015-11-02

Applicant: Texas Instruments Incorporated

Inventor： Samantha Rose Summerson ,  Anuj Batra ,  Srinath Hosur ,  Georgios Angelpoulous

IPC: H04L1/00 ,  H03M13/37 ,  G06F11/10

CPC classification number: H04L1/0041 ,  G06F11/1004 ,  H03M13/1515 ,  H03M13/373 ,  H03M13/3761 ,  H04L1/0057 ,  H04W28/065

Abstract: A network coding system. A packet decoding engine receives a number of received packets. A packet repository is coupled to the decoding engine to temporarily store the received packets. The packet decoding engine is configured to generate a decoding matrix by forming a sub-matrix by selecting columns of a network code matrix that have indices that are the same as the indices of the encoded packets that correspond to the selected received packets. The packet decoding engine is also configured to invert the sub-matrix to form the decoding matrix and multiply the received packet matrix by the decoding matrix to generate a recovered matrix where each column corresponds to a decoded packet.

Abstract translation: 网络编码系统。 分组解码引擎接收多个接收到的分组。 分组存储库耦合到解码引擎以临时存储接收到的分组。 分组解码引擎被配置为通过选择具有与对应于所选择的接收分组的编码分组的索引相同的索引的网络码矩阵的列来形成子矩阵来生成解码矩阵。 分组解码引擎还被配置为反转子矩阵以形成解码矩阵，并将接收的分组矩阵乘以解码矩阵，以生成恢复的矩阵，其中每列对应于解码的分组。

公开(公告)号：US20150365782A1

公开(公告)日：2015-12-17

申请号：US14709549

申请日：2015-05-12

Applicant: Texas Instruments Incorporated

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June Chul Roh

IPC: H04W4/00 ,  H04L27/20 ,  H04L27/26

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK modulation. The PHY layer is configured to transmit and receive data in a frequency band selected from the group consisting of: 402-405 MHz, 420-450 MHz, 863-870 MHz, 902-928 MHz, 950-956 MHz, 2360-2400 MHz, and 2400-2483.5 MHz.

Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 基于用于BAN分组传输的恒定符号速率并且基于M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK调制，PHY层被配置用于在有限多径环境中的体区域网络（BAN）操作。 PHY层被配置为从选自以下的频带发送和接收数据：402-405MHz，420-450MHz，863-870MHz，902-928MHz，950-956MHz，2360-2400MHz ，和2400-2483.5MHz。

公开(公告)号：US20150350387A1

公开(公告)日：2015-12-03

申请号：US14824705

申请日：2015-08-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June C. Roh

IPC: H04L29/06 ,  H04L27/20

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment using M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK. Also, the PHY layer uses a constant symbol rate for BAN packet transmissions.

Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 PHY层被配置为使用M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK的有限多径环境中的身体局域网（BAN）操作。 此外，PHY层对于BAN分组传输使用恒定的符号率。

公开(公告)号：US20150247928A1

公开(公告)日：2015-09-03

申请号：US14193048

申请日：2014-02-28

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Gangadhar Burra ,  Srinath Hosur

IPC: G01S19/03

CPC classification number: G01S19/03 ,  G01S19/05 ,  G01S19/09 ,  G01S19/35

Abstract: A location or position sensor apparatus and sensor systems are presented, in which individual location sensors store and wirelessly exchange orbital information, soft demodulation information, position and time of day information, and the sensors share decoding and computation tasks related to acquiring and tracking navigation satellites to conserve power and to facilitate determination of sensor positions.

Abstract translation: 提出了一种位置传感器装置和传感器系统，其中各个位置传感器存储和无线地交换轨道信息，软解调信息，位置和时间信息，并且传感器共享与获取和跟踪导航卫星有关的解码和计算任务 以节省电力并便于确定传感器位置。

公开(公告)号：US08787477B2

公开(公告)日：2014-07-22

申请号：US14030338

申请日：2013-09-18

Applicant: Texas Instruments Incorporated

Inventor： Mohamed Farouk Mansour ,  Srinath Hosur ,  JuneChul Roh

IPC: H04L5/12 ,  H04L27/36

CPC classification number: H04L1/0054 ,  H04L27/3405 ,  H04L27/38

Abstract: Embodiments of the invention provide a methods for the assignment of codewords to the available constellation points to minimize the Hamming distance between adjacent codewords. An hexagonal constellation is modeled as a two-dimensional trellis with an horizontal axis varying across a plurality of constellation points and a vertical axis varying across a plurality of codewords [0, 1, . . . , N−1]. A best path through the trellis is found to select a single constellation point per each codeword where a codeword is to be assigned. A each state in the transition across the trellis diagram, a current score and the best path that leads to the state is stored in a memory. Each codeword is assigned to the selected constellation point. The hexagonal constellation is used for transmitting data in a communication system.

Abstract translation: 本发明的实施例提供了一种用于将码字分配给可用的星座点以使相邻码字之间的汉明距离最小化的方法。 六边形星座被建模为具有在多个星座点上变化的水平轴和在多个码字[0,1]上变化的垂直轴线）的二维网格。 。 。 ，N-1]。 发现通过网格的最佳路径是为每个码字选择一个单一的星座点，其中要分配码字。 跨越格状图的过渡中的每个状态，当前分数和导致状态的最佳路径被存储在存储器中。 每个码字被分配给所选择的星座点。 六边形星座用于在通信系统中传输数据。

公开(公告)号：US20140153558A1

公开(公告)日：2014-06-05

申请号：US14061429

申请日：2013-10-23

Applicant: Texas Instruments Incorporated

Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June C. Roh

IPC: H04L27/20 ,  H04L29/06

CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment using M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK. Also, the PHY layer uses a constant symbol rate for BAN packet transmissions.

Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 PHY层被配置为使用M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK的有限多径环境中的身体局域网（BAN）操作。 此外，PHY层对于BAN分组传输使用恒定的符号率。

公开(公告)号：US08731026B2

公开(公告)日：2014-05-20

申请号：US14074448

申请日：2013-11-07

Applicant: Texas Instruments Incorporated

Inventor： June Chul Roh ,  Anuj Batra ,  Sudipto Chakraborty ,  Srinath Hosur

IPC: H04B1/00

CPC classification number: H04B1/69 ,  H04B1/7176 ,  H04B2001/6908

Abstract: A symbol modulation system applicable to a body area network is disclosed herein. The symbol modulation system includes a symbol mapper. The symbol mapper is configured to determine a time within a predetermined symbol transmission interval at which a transmission representative of the symbol will occur. The time is determined based on a value of a symbol and a value of a time-hopping sequence. The time is selected from a plurality of symbol value based time slots, and a plurality of time-hopping sequence sub-time-slots within each symbol value based time slot. The symbol mapper is configured to generate a single guard interval within the symbol transmission interval. The single guard interval is positioned to terminate the symbol transmission interval.

Abstract translation: 本文公开了适用于体区网络的符号调制系统。 符号调制系统包括符号映射器。 符号映射器被配置为确定符号的传输代表将发生的预定符号传输间隔内的时间。 该时间基于符号的值和跳时序列的值来确定。 该时间是从基于多个符号值的时隙中选出的，以及在每个基于符号值的时隙内的多个跳时序列子时隙。 符号映射器被配置为在符号传输间隔内产生单个保护间隔。 单个保护间隔定位成终止符号传输间隔。