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    System and method for multi-mode communication based on power consumption corresponds to utilization factor and transmission time
    31.
    发明授权
    System and method for multi-mode communication based on power consumption corresponds to utilization factor and transmission time 有权

    公开(公告)号：US10313928B2

    公开(公告)日：2019-06-04

    申请号：US15457477

    申请日：2017-03-13

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Wonsoo Kim ,  Il Han Kim

    IPC: G06F1/26 ,  H04W28/08 ,  H04W52/02 ,  H04W52/38

    Abstract: Methods, apparatus, systems and articles of manufacture to optimize power consumption and capacity in a multi-mode communication system are disclosed. A utilization factor controller is to estimate power consumption values corresponding to a plurality of first utilization factor and second utilization factor pairs, the first utilization factor corresponding to utilization of the first transceiver that is to communicate using a first protocol, the second utilization factor corresponding to utilization of the second transceiver that is to communicate using a second protocol different form the first protocol, the utilization factor controller to select a first utilization factor and second utilization factor pair based on the estimated power consumption value. A transmission time controller is to calculate first and second transmission times to be used by the first and second transceiver based on the selected first utilization factor and second utilization factor pair. A data allocator is to allocate data for transmission by the first transceiver and the second transceiver according to the first and second transmission times.

    Flow control for powerline communications
    32.
    发明授权
    Flow control for powerline communications 有权

    公开(公告)号：US10116575B2

    公开(公告)日：2018-10-30

    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 ,  H04L12/835 ,  H04L12/823

    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.

    System and method for improving narrowband interference performance
    33.
    发明授权
    System and method for improving narrowband interference performance 有权

    公开(公告)号：US10116407B2

    公开(公告)日：2018-10-30

    申请号：US15690427

    申请日：2017-08-30

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Tarkesh Pande ,  Anuj Batra ,  Il Han Kim

    IPC: H04J11/00 ,  H04L25/03 ,  H04L27/26

    Abstract: An orthogonal frequency division multiplexing (OFDM) receiver includes detection logic, offset generation logic, tone erasure logic, and correction generation logic. The detection logic is configured to detect a signal containing a block of samples that includes a narrowband interferer from a communication channel. The offset generation logic is configured to align a frequency of the narrowband interferer to a center of a subcarrier frequency of the communication channel to produce an offset signal thereby introducing inter-carrier interference (ICI). The tone erasure logic is configured to remove the subcarrier frequency from the offset signal to produce an interferer erased offset signal. The correction generation logic is configured to remove the ICI to produce an interferer erased signal.

    Asymmetric channels in power line communications
    36.
    发明授权
    Asymmetric channels in power line communications 有权
    电力线通信中的非对称信道

    公开(公告)号：US09438309B2

    公开(公告)日：2016-09-06

    申请号：US14990471

    申请日：2016-01-07

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Il Han Kim

    IPC: H04B3/00 ,  H04B3/54 ,  H04B3/46

    CPC classification number: H04B3/54 ,  H04B3/46 ,  H04B3/542 ,  H04B2203/5495

    Abstract: Apparatus (and related methods) for a power line communication network include a processor configured to receive beacons over a communication interface. The processor determines a link quality indicator (LQI) for each received beacon and ignores the beacons for at most a predetermined maximum number of beacon receptions when each LQI is below a threshold. The processor responds to a received beacon if the LQI for such received beacon exceeds the threshold or if a predetermined maximum number of beacons have been received with LQIs below the threshold.

    Abstract translation: 用于电力线通信网络的装置（和相关方法）包括被配置为通过通信接口接收信标的处理器。 处理器为每个接收到的信标确定链路质量指示符（LQI），并且当每个LQI低于阈值时，忽略至多一个预定最大数量的信标接收的信标。 如果用于这种接收到的信标的LQI超过阈值，或者如果已经接收到具有低于阈值的LQI的预定最大数量的信标，则处理器响应于所接收的信标。

    Method to Use a Preamble with Band Extension in Power Line Communications
    37.
    发明申请
    Method to Use a Preamble with Band Extension in Power Line Communications 审中-公开
    在电力线通信中使用带扩展的前导码的方法

    公开(公告)号：US20150341084A1

    公开(公告)日：2015-11-26

    申请号：US14816671

    申请日：2015-08-03

    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 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

    Building, Transmitting, and Receiving Frame Structures in Power Line Communications
    38.
    发明申请
    Building, Transmitting, and Receiving Frame Structures in Power Line Communications 审中-公开
    电力线通信中的建筑，发射和接收帧结构

    公开(公告)号：US20140146900A1

    公开(公告)日：2014-05-29

    申请号：US14169773

    申请日：2014-01-31

    Applicant: Texas Instruments Incorporated

    Inventor： Anand G. Dabak ,  Badri N. Varadarajan ,  Il Han Kim ,  Tarkesh Pande

    IPC: H04B3/54

    CPC classification number: H04L69/22 ,  H04B3/30 ,  H04B3/54 ,  H04B3/542 ,  H04B10/11 ,  H04B2001/6912

    Abstract: Systems and methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols based on a chirp signal that yields a low peak-to-average power ratio (PAPR). According to some techniques, the preamble may be constructed with one or more different types and/or number of symbols configured to identify a PLC domain operating in close physical proximity to another PLC domain. According to other techniques, one or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise. According to yet other techniques, a PLC detector may be capable of receiving and decoding two or more types of PLC frames (e.g., using different PLC standards).

    Abstract translation: 描述了在电力线通信（PLC）中构建，发送和接收帧结构的系统和方法。 本文描述的各种技术基于产生低峰值与平均功率比（PAPR）的啁啾信号提供使用一个或多个符号的前导码设计。 根据一些技术，可以使用一个或多个不同类型和/或符号数来构造前导码，该符号被配置为识别在与另一个PLC域紧密物理接近的操作的PLC域。 根据其他技术，一个或多个前导符号可以散布在PLC帧的报头部分内，以便于例如在存在脉冲噪声的情况下估计帧边界和/或采样频率偏移。 根据其他技术，PLC检测器可能能够接收和解码两个或更多类型的PLC帧（例如，使用不同的PLC标准）。

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