Low-complexity tightly-coupled integration filter for step detection in a sensor-assisted GNSS receiver
    81.
    发明授权
    Low-complexity tightly-coupled integration filter for step detection in a sensor-assisted GNSS receiver 有权
    用于传感器辅助GNSS接收机中步进检测的低复杂度紧耦合积分滤波器

    公开(公告)号:US08645062B2

    公开(公告)日:2014-02-04

    申请号:US13745186

    申请日:2013-01-18

    CPC classification number: G01S19/47 G01C21/165 G01C21/28 G01C22/006 G06F17/16

    Abstract: Embodiments of the invention provide a step detection. An accelerometer measurement in the form of a multi-dimensional acceleration vector is obtained. The magnitude of the accelerometer measurement is filtered using a low pass filter. A threshold for a down-crossing is provided as is a threshold for an up-crossing. A step detection is triggered if the magnitude of the accelerometer measurement is greater than or equal to the threshold for an up-crossing.

    Abstract translation: 本发明的实施例提供了步骤检测。 获得多维加速度矢量形式的加速度计测量。 使用低通滤波器对加速度计测量的幅度进行滤波。 提供了一个下划线的阈值,就像上一交叉口的阈值一样。 如果加速度计测量的幅度大于或等于上行阈值,则触发步进检测。

    NLOS wireless backhaul downlink communication

    公开(公告)号:US11601924B2

    公开(公告)日:2023-03-07

    申请号:US17135393

    申请日:2020-12-28

    Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.

    FORWARD ERROR CONTROL CODING
    87.
    发明申请

    公开(公告)号:US20210126656A1

    公开(公告)日:2021-04-29

    申请号:US17141095

    申请日:2021-01-04

    Abstract: A system and method for providing error control coding for backhaul applications are disclosed. Data is first encoded using Reed-Solomon (RS) coding. The output RS blocks are then turbo coded. The size of the output RS blocks is selected to match the input of the turbo encoder. The bits from the RS blocks may be interleaved to create the input turbo blocks. Cyclic Redundancy Check (CRC) parity bits may be added to the data prior to RS coding.

    NLOS WIRELESS BACKHAUL UPLINK COMMUNICATION
    89.
    发明申请

    公开(公告)号:US20200344749A1

    公开(公告)日:2020-10-29

    申请号:US16872135

    申请日:2020-05-11

    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.

    Wireless networks utilizing multiple modulations

    公开(公告)号:US10680861B2

    公开(公告)日:2020-06-09

    申请号:US15899310

    申请日:2018-02-19

    Abstract: A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (PHY) modulation, and at least one other node utilizes a second PHY modulation different from the first PHY modulation. The first node receives a PHY frame transmitted by one of the plurality of nodes, and identifies a PHY modulation type selected from the first PHY modulation and the second PHY modulation used in the PHY frame or to be used in a subsequently to be received PHY frame or frame portion. The first node decodes the PHY frame or the subsequently to be received PHY frame or frame portion using the PHY modulation type identified in the identifying step.

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