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    Frequency diversity modulation system and method
    12.
    发明授权
    Frequency diversity modulation system and method 有权

    公开(公告)号：US10200171B2

    公开(公告)日：2019-02-05

    申请号：US15651132

    申请日：2017-07-17

    Applicant: Texas Instruments Incorporated

    Inventor： Jing Lin ,  Tarkesh Pande ,  Il Han Kim ,  Anuj Batra

    IPC: H04W72/12 ,  H04W28/04 ,  H04L27/20 ,  H04L5/00 ,  H04L27/36 ,  H04B3/54

    Abstract: A method of encoding a first bit and a second bit for transmission on a transmission band is provided. The method includes: mapping, via a mapping component, the first bit and the second bit into a first symbol; mapping, via the mapping component, the first bit and the second bit into a second symbol; dividing, via a dividing component, the transmission band into subcarriers; allocating, via an allocating component, the first symbol to a first subcarrier of the subcarriers; allocating, via the allocating component, the second symbol to a second subcarrier of the subcarriers; and differentially encoding, via a differential encoder, the first symbol and the second symbol.

    PLC FCH unitary circle differential symbol and preamble encoding determination
    14.
    发明授权
    PLC FCH unitary circle differential symbol and preamble encoding determination 有权
    PLC FCH单圆差分符号和前导码编码确定

    公开(公告)号：US09537533B2

    公开(公告)日：2017-01-03

    申请号：US14056755

    申请日：2013-10-17

    Applicant: Texas Instruments Incorporated

    Inventor： Anuj Batra ,  Tarkesh Pande ,  Il Han Kim

    IPC: H04B3/54 ,  H04L27/233 ,  H04L27/26

    CPC classification number: H04B3/542 ,  H04L27/2331 ,  H04L27/2613

    Abstract: Embodiments of the invention provide a method for discriminating between two types of encoding schemes for the frame control header (FCH) used in G3-type narrow band OFDM communications. The two modes for encoding are Differential with respect to the previous Symbol (DS) and Differential with respect to the Preamble (DP). This mode is sometimes referred to as “coherent” mode.

    Abstract translation: 本发明的实施例提供了一种用于鉴别在G3型窄带OFDM通信中使用的帧控制报头（FCH）的两种类型的编码方案的方法。 编码的两种模式相对于先前的符号（DS）和差分相对于前导码（DP）是差分的。 这种模式有时被称为“相干”模式。

    PACKET HEADER PROTECTION FOR UTILITY NETWORKS
    16.
    发明申请
    PACKET HEADER PROTECTION FOR UTILITY NETWORKS 审中-公开
    用于实用网络的分组头保护

    公开(公告)号：US20160087754A1

    公开(公告)日：2016-03-24

    申请号：US14952406

    申请日：2015-11-25

    Applicant: Texas Instruments Incorporated

    Inventor： Yumin Zhang ,  Wenxun Qiu ,  Timothy Mark Schmidl ,  Anuj Batra

    IPC: H04L1/00 ,  G06F11/10 ,  H04L29/06

    CPC classification number: H04L1/0041 ,  G06F11/0709 ,  G06F11/1004 ,  G06F11/1402 ,  H03M13/09 ,  H04L1/0045 ,  H04L1/0053 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0083 ,  H04L69/22

    Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.

    Abstract translation: 网络设备包括分组报头保护发生器，发射机，接收机，解码器和路由器。 发射机向接收机发送数据包。 数据分组包括数据分组报头。 分组报头保护发生器被布置为切换数据分组报头的受保护部分的所选位，并生成数据完整性签名。 接收器接收数据包并产生接收到的数据完整性签名。 解码器响应于接收到的数据分组报头的受保护部分来计算本地计算的数据完整性签名。 将本地计算的数据完整性签名与接收到的数据完整性签名进行比较。 响应于数据分组转发目的地是否包括被布置为计算本地计算的数据完整性签名的解码器，路由器选择路由路径的一部分。

    PACKET HEADER PROTECTION FOR UTILITY NETWORKS
    18.
    发明申请
    PACKET HEADER PROTECTION FOR UTILITY NETWORKS 有权
    用于实用网络的分组头保护

    公开(公告)号：US20150100856A1

    公开(公告)日：2015-04-09

    申请号：US14047021

    申请日：2013-10-07

    Applicant: Texas Instruments, Incorporated

    Inventor： Yumin Zhang ,  Wenxun Qiu ,  Timothy Mark Schmidl ,  Anuj Batra

    IPC: H04L1/00 ,  G06F11/14 ,  G06F11/07

    CPC classification number: H04L1/0041 ,  G06F11/0709 ,  G06F11/1004 ,  G06F11/1402 ,  H03M13/09 ,  H04L1/0045 ,  H04L1/0053 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0083 ,  H04L69/22

    Abstract: A packet header protection system includes, for example, a header checksum (CS) that is arranged to provide error detection capability to FSK (frequency shift keyed) packet headers. Accordingly, receivers in the network can more quickly terminate processing of an errored packet upon detection of error(s) in the header. Quickly detecting packet header errors helps to avoid a sequence of compounding errors such as the repeated transmissions of a packet having an undetected erroneous header. Accordingly, the packet header protection system reduces false alarm rate in the network and increases network throughput.

    Abstract translation: 分组报头保护系统包括例如被配置为向FSK（频移密钥）分组报头提供错误检测能力的报头校验和（CS）。 因此，当检测到报头中的错误时，网络中的接收机可以更快速地终止错误分组的处理。 快速检测分组报头错误有助于避免复制错误的序列，例如具有未检测到的错误报头的分组的重复传输。 因此，分组报头保护系统降低了网络中的误报率，并提高了网络吞吐量。

    Method to Use a Preamble with Band Extension in Power Line Communications
    19.
    发明申请
    Method to Use a Preamble with Band Extension in Power Line Communications 有权
    在电力线通信中使用带扩展的前导码的方法

    公开(公告)号：US20140105313A1

    公开(公告)日：2014-04-17

    申请号：US14052913

    申请日：2013-10-14

    Applicant: Texas Instruments Incorporated

    Inventor： Il Han Kim ,  Tarkesh Pande ,  Anuj Batra

    IPC: H04B3/54

    CPC classification number: H04B3/542 ,  H04B2203/5433 ,  H04B2203/5466

    Abstract: Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line

    Abstract translation: 实施例包括使用带扩展的前置码的电力线通信的方法。 一种方法可以包括接收分组数据单元PDU。 位层重复被应用于PDU的至少一部分以产生重复的部分。 每个子信道执行交织。 引导音被插入交错部分。 每个数据音调相对于插入的导频音中最接近的一个进行调制。 PDU通过电力线传输

    PHY LAYER PARAMETERS FOR BODY AREA NETWORK (BAN) DEVICES
    20.
    发明申请
    PHY LAYER PARAMETERS FOR BODY AREA NETWORK (BAN) DEVICES 审中-公开
    物理层网络（BAN）设备的PHY层参数

    公开(公告)号：US20130343366A1

    公开(公告)日：2013-12-26

    申请号：US13917435

    申请日：2013-06-13

    Applicant: Texas Instruments Incorporated

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

    IPC: H04W4/00

    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。

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