中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.01 seconds)

    DETERMINING A TONE SEQUENCE FOR WAKE-UP PROCEDURES
    1.
    发明申请
    DETERMINING A TONE SEQUENCE FOR WAKE-UP PROCEDURES 有权

    公开(公告)号：US20210014792A1

    公开(公告)日：2021-01-14

    申请号：US16924567

    申请日：2020-07-09

    Applicant: QUALCOMM Incorporated

    Inventor： Geert Arnout Awater ,  Stephen Jay Shellhammer ,  Didier Johannes Richard Van Nee ,  Bin Tian

    IPC: H04W52/02 ,  H04L27/26 ,  H04L1/00

    Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for determining one or more tone sequences (for example, for wake-up procedures). In one aspect, an access point (AP) may wake a mobile station (STA) from a low power mode using a wake-up packet, where an ON symbol of the wake-up packet is modulated using a tone sequence. To reduce the likelihood of a STA falsely identifying the ON symbol as a packet preamble, the AP may implement a tone sequence that satisfies a correlation metric threshold. For example, for a set of candidate tone sequences, each tone sequence may be associated with a correlation metric and peak-to-average-power ratio (PAPR) coordinate pair, and the tone sequence for modulating the ON symbol of the wake-up packet may be selected from a lower convex hull of the coordinate pairs.

    Non-linear interference cancellation across aggressor transmitters and victim receivers
    4.
    发明授权
    Non-linear interference cancellation across aggressor transmitters and victim receivers 有权
    攻击者发射机和受害者接收机之间的非线性干扰消除

    公开(公告)号：US09160386B2

    公开(公告)日：2015-10-13

    申请号：US13857941

    申请日：2013-04-05

    Applicant: QUALCOMM Incorporated

    Inventor： Roberto Rimini ,  Jibing Wang ,  Geert Arnout Awater

    IPC: H03D1/04 ,  H04B1/12

    CPC classification number: H04B1/12

    Abstract: Systems and methods are disclosed to implement non-linear interference cancellation (NLIC) across chips or dies in communication systems to cancel or mitigate self-jamming interference. A victim transceiver may receive an analog baseband transmit (Tx) signal from an aggressor transceiver. The analog baseband Tx signal may be tapped from a digital analog converter (DAC) of the aggressor transceiver. Alternatively, the analog baseband Tx signal may be generated by the aggressor transceiver using an auxiliary down-conversion and filtering stage. The victim transceiver may receive a composite baseband Rx signal from the victim transceiver front-end. The composite baseband Rx signal includes the desired Rx signal and an interference signal. The victim transceiver may sample the analog baseband Tx signal to generate a digital signal replica of the analog baseband Tx signal for the NLIC operation to cancel or mitigate the interference signal present in the composite baseband Rx signal.

    Abstract translation: 公开了系统和方法以在通信系统中跨芯片或芯片实现非线性干扰消除（NLIC），以消除或减轻自干扰干扰。 受害者收发器可以从侵扰者收发器接收模拟基带发射（Tx）信号。 可以从侵略者收发器的数字模拟转换器（DAC）中抽取模拟基带Tx信号。 或者，模拟基带Tx信号可以由侵略者收发器使用辅助下变频和滤波级产生。 受害者收发器可以从受害收发器前端接收复合基带Rx信号。 复合基带Rx信号包括期望的Rx信号和干扰信号。 受害收发器可以采样模拟基带Tx信号以产生用于NLIC操作的模拟基带Tx信号的数字信号副本，以消除或减轻存在于复合基带Rx信号中的干扰信号。

    Non-linear Interference Cancellation Across Aggressor Transmitters and Victim Receivers
    5.
    发明申请
    Non-linear Interference Cancellation Across Aggressor Transmitters and Victim Receivers 有权
    攻击者发射机和受害者接收器之间的非线性干扰消除

    公开(公告)号：US20140301498A1

    公开(公告)日：2014-10-09

    申请号：US13857941

    申请日：2013-04-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： Roberto Rimini ,  Jibing Wang ,  Geert Arnout Awater

    IPC: H04L25/08 ,  H04B1/12

    CPC classification number: H04B1/12

    Abstract: Systems and methods are disclosed to implement non-linear interference cancellation (NLIC) across chips or dies in communication systems to cancel or mitigate self-jamming interference. A victim transceiver may receive an analog baseband transmit (Tx) signal from an aggressor transceiver. The analog baseband Tx signal may be tapped from a digital analog converter (DAC) of the aggressor transceiver. Alternatively, the analog baseband Tx signal may be generated by the aggressor transceiver using an auxiliary down-conversion and filtering stage. The victim transceiver may receive a composite baseband Rx signal from the victim transceiver front-end. The composite baseband Rx signal includes the desired Rx signal and an interference signal. The victim transceiver may sample the analog baseband Tx signal to generate a digital signal replica of the analog baseband Tx signal for the NLIC operation to cancel or mitigate the interference signal present in the composite baseband Rx signal.

    Abstract translation: 公开了系统和方法以在通信系统中跨芯片或芯片实现非线性干扰消除（NLIC），以消除或减轻自干扰干扰。 受害者收发器可以从侵扰者收发器接收模拟基带发射（Tx）信号。 可以从侵略者收发器的数字模拟转换器（DAC）中抽取模拟基带Tx信号。 或者，模拟基带Tx信号可以由侵略者收发器使用辅助下变频和滤波级产生。 受害者收发器可以从受害收发器前端接收复合基带Rx信号。 复合基带Rx信号包括期望的Rx信号和干扰信号。 受害收发器可以采样模拟基带Tx信号以产生用于NLIC操作的模拟基带Tx信号的数字信号副本，以消除或减轻存在于复合基带Rx信号中的干扰信号。

    Determining a tone sequence for wake-up procedures
    7.
    发明授权
    Determining a tone sequence for wake-up procedures 有权

    公开(公告)号：US11310743B2

    公开(公告)日：2022-04-19

    申请号：US16924567

    申请日：2020-07-09

    Applicant: QUALCOMM Incorporated

    Inventor： Geert Arnout Awater ,  Stephen Jay Shellhammer ,  Didier Johannes Richard Van Nee ,  Bin Tian

    IPC: H04W52/02 ,  H04L27/26 ,  H04L1/00

    Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for determining one or more tone sequences (for example, for wake-up procedures). In one aspect, an access point (AP) may wake a mobile station (STA) from a low power mode using a wake-up packet, where an ON symbol of the wake-up packet is modulated using a tone sequence. To reduce the likelihood of a STA falsely identifying the ON symbol as a packet preamble, the AP may implement a tone sequence that satisfies a correlation metric threshold. For example, for a set of candidate tone sequences, each tone sequence may be associated with a correlation metric and peak-to-average-power ratio (PAPR) coordinate pair, and the tone sequence for modulating the ON symbol of the wake-up packet may be selected from a lower convex hull of the coordinate pairs.

Patent Agency Ranking