Extended localization range and assets tracking

    公开(公告)号:US10656263B2

    公开(公告)日:2020-05-19

    申请号:US15704883

    申请日:2017-09-14

    Abstract: A method includes: transmitting, from a reader device, a first set of wireless signals, in a first frequency band, detectable by RFID transponder devices; transmitting, from the reader device, a second set of wireless signals, at a second frequency band different from the first frequency band, detectable by the RFID transponder devices; detecting, at the reader device, a set of reply wireless signals transmitted by one or more of the RFID transponder devices in response to the first set of wireless signals, the set of reply signals comprising identification data associated with the one or more of the RFID transponder devices, and orientation information representative of relative orientation of the respective one or more of the RFID transponder devices to the reader device; and deriving location information for at least one of the one or more of the RFID transponder devices based on the detected set of reply wireless signals.

    SIGNAL CORRECTION FOR CARRIER AGGREGATION TRANSCEIVER
    3.
    发明申请
    SIGNAL CORRECTION FOR CARRIER AGGREGATION TRANSCEIVER 有权
    载波收发器的信号校正

    公开(公告)号:US20160285484A1

    公开(公告)日:2016-09-29

    申请号:US14668823

    申请日:2015-03-25

    CPC classification number: H04B1/0475 H04B1/0483 H04B2001/0425

    Abstract: A transceiver in a wireless device supporting carrier aggregation may include a correction module to generate a correction signal to attenuate intermodulation distortion associated with a first transmitted communication signal. In one embodiment, the correction signal may be added to the first transmitted communication signal (a victim signal) to reduce the intermodulation distortion caused by a second transmitted communication signal (an aggressor signal). The correction signal may be generated based on the aggressor signal. In another embodiment, the correction signal may equalize or pre-distort the first transmitted communication signal.

    Abstract translation: 支持载波聚合的无线设备中的收发器可以包括校正模块,用于产生校正信号以衰减与第一发送的通信信号相关联的互调失真。 在一个实施例中,校正信号可以被添加到第一发送通信信号(受害信号),以减少由第二发送通信信号(侵略者信号)引起的互调失真。 校正信号可以基于侵略者信号产生。 在另一实施例中,校正信号可以对第一发送通信信号进行均衡或预失真。

    Intermodulation distortion canceller for use in multi-carrier transmitters
    4.
    发明授权
    Intermodulation distortion canceller for use in multi-carrier transmitters 有权
    用于多载波发射机的互调失真消除器

    公开(公告)号:US09356632B2

    公开(公告)日:2016-05-31

    申请号:US14508902

    申请日:2014-10-07

    Abstract: An intermodulation distortion canceller for use in multi-carrier transmitters is disclosed. In an exemplary embodiment, an apparatus includes a first transmit chain that transmits a first RF signal, a second transmit chain that transmits a second RF signal, and a canceller that outputs a first leakage cancellation signal that is input to the second transmit chain, and outputs a second leakage cancellation signal that is input to the first transmit chain, the canceller generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.

    Abstract translation: 公开了一种用于多载波发射机的互调失真消除器。 在示例性实施例中,一种装置包括发射第一RF信号的第一发射链,发送第二RF信号的第二发射链,以及输出输入到第二发射链的第一泄漏消除信号的消除器,以及 输出输入到第一发射链的第二泄漏消除信号,消除器从第一和第二RF信号或从用于产生第一和第二RF信号的第一和第二基带信号产生第一和第二泄漏消除信号。

    WIRELESS DEVICE WITH BUILT-IN SELF TEST (BIST) CAPABILITY FOR TRANSMIT AND RECEIVE CIRCUITS
    5.
    发明申请
    WIRELESS DEVICE WITH BUILT-IN SELF TEST (BIST) CAPABILITY FOR TRANSMIT AND RECEIVE CIRCUITS 审中-公开
    具有内置自检(BIST)功能的无线设备发送和接收电路

    公开(公告)号:US20140256376A1

    公开(公告)日:2014-09-11

    申请号:US13875083

    申请日:2013-05-01

    CPC classification number: H04B17/14 H04B17/19

    Abstract: A wireless device with built-in self test (BIST) capability for testing/calibrating transmit and receive circuits is disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a first circuit and a second circuit. The first circuit (e.g., a transmitter or a mixer) provides a test signal to at least one transmit path. The test signal is electro-magnetically coupled from the output of the at least one transmit path to a test signal line. For example, the test signal may be provided from the at least one transmit path via at least one antenna feed line to at least one antenna element and may be electro-magnetically coupled from the at least one antenna feed line to the test signal line. The second circuit (e.g., a buffer, a receiver, or a mixer) processes a received test signal from the test signal line.

    Abstract translation: 公开了一种具有内置自检(BIST)功能的无线设备,用于测试/校准发射和接收电路。 在示例性设计中,装置(例如,无线装置或集成电路)包括第一电路和第二电路。 第一电路(例如,发射机或混频器)向至少一个发射路径提供测试信号。 测试信号从至少一个发射路径的输出到测试信号线电磁耦合。 例如,测试信号可以经由至少一个天线馈送线路从至少一个发射路径提供给至少一个天线元件,并且可以从至少一个天线馈线到电测磁耦合到测试信号线。 第二电路(例如,缓冲器,接收器或混频器)处理来自测试信号线的接收到的测试信号。

    Mitigation of inter-band interference to receivers by allocating alerts in frequency domain based on severity

    公开(公告)号:US11778651B2

    公开(公告)日:2023-10-03

    申请号:US17685788

    申请日:2022-03-03

    CPC classification number: H04W72/541 H04B17/318 H04W72/0453

    Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

    Hybrid in-band same frequency full-duplex and offset-frequency full-duplex wireless communication

    公开(公告)号:US11539499B2

    公开(公告)日:2022-12-27

    申请号:US16658850

    申请日:2019-10-21

    Abstract: Wireless communications systems and methods related to hybrid in-band same-frequency full-duplex (SFFD) and frequency-offset-frequency full-duplex (FD) wireless communication are provided. A user equipment (UE) transmits first data to a base station (BS) over a first frequency band while receiving second data from the BS the first frequency band responsive to a first pathloss between the UE and the BS satisfying a threshold for an SFFD operation. The UE transmits third data to the BS over a second frequency band while receiving fourth data from the BS over a third frequency band that is distinct from the second frequency band according to an offset-frequency FD operation responsive to a second pathloss between the UE and the BS failing to satisfying the threshold.

    Mitigation of inter-band interference to receivers by allocating alerts in frequency domain based on severity

    公开(公告)号:US11291013B2

    公开(公告)日:2022-03-29

    申请号:US15930097

    申请日:2020-05-12

    Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

    Navigation techniques for autonomous and semi-autonomous vehicles

    公开(公告)号:US11199413B2

    公开(公告)日:2021-12-14

    申请号:US16039686

    申请日:2018-07-19

    Abstract: Techniques for operating a navigation system are provided. An example method according to these techniques includes determining a first localization solution associated with a location of the vehicle in a navigable environment using a radar transceiver of the navigation system, determining a second localization solution associated with the location of the vehicle in the navigable environment using a LiDAR transceiver, a camera, or both of the navigation system, selecting a localization solution from the first and second localization solutions based on whether an accuracy of the first localization exceeds an accuracy of the second localization solution, and utilizing the selected vehicle localization solution for navigation of the vehicle through the navigable environment.

    Wireless communication impairments correction

    公开(公告)号:US10056941B2

    公开(公告)日:2018-08-21

    申请号:US15187580

    申请日:2016-06-20

    CPC classification number: H04B3/32 H04B3/487 H04L27/368 H04L43/16

    Abstract: Systems and methods for providing wireless communication impairment correction using non-linear iterative precoding by a transmitter device are disclosed. The transmitter may exploit the non-linear transmit indications, and perform digital non-linear multiple input multiple output (MIMO) precoding of a transmit signal to improve the error vector magnitude (EVM) at the intended receiver device and/or reduce the adjacent channel leakage ratio (ACLR) at the unintended receiver devices. The non-linear transmit indications may comprise amplitude modulation to amplitude modulation (AM-AM) and amplitude modulation to phase modulation (AM-PM) indications. In operation, the non-linear transmit indications may be received from the intended receiver devices or may be measured by the transmitter device.

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