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    GROUP DELAY CALIBRATION FOR CARRIER AGGREGATION / MULTI-RADIO ACCESS TECHNOLOGY
    14.
    发明公开
    GROUP DELAY CALIBRATION FOR CARRIER AGGREGATION / MULTI-RADIO ACCESS TECHNOLOGY 审中-公开

    公开(公告)号：US20230254057A1

    公开(公告)日：2023-08-10

    申请号：US18305216

    申请日：2023-04-21

    Applicant: QUALCOMM Incorporated

    Inventor： Sony AKKARAKARAN ,  Tao LUO

    IPC: H04B17/364 ,  H04B17/10 ,  H04W64/00 ,  H04B17/14

    CPC classification number: H04B17/364 ,  H04B17/104 ,  H04W64/00 ,  H04B17/14 ,  H04W88/10

    Abstract: Disclosed are techniques for handling of radio frequency (RF) front-end group delays for roundtrip time (RTT) estimation. In an aspect, a network node transmits first and second RTT measurement (RTTM) signals to a user equipment (UE) and receives first and second RTT response (RTTR) signals from the UE. The network node measures the transmission times of the RTTM signals and the reception times of the RTTR signals, and the UE measures the transmission times the RTTM signals and the transmission times of the RTTR signals. The group delays of the transmit/receive chains of the network node and the UE are determined for one set of transmit/receive chains based on the first RTTM signal and first RTTR signal. The group delays of the transmit/receive chain used for the second RTTM signal and the second RTTR signal are determined relative to the group delay of the one set of transmit/receive chains.

    Dynamically estimating a propagation time between a first node and a second node of a wireless network
    17.
    发明授权
    Dynamically estimating a propagation time between a first node and a second node of a wireless network 有权

    公开(公告)号：US11646809B2

    公开(公告)日：2023-05-09

    申请号：US17690995

    申请日：2022-03-09

    Applicant: Skylo Technologies, Inc.

    Inventor： Meghna Agrawal ,  Andrew Nuttall

    IPC: H04J3/06 ,  H04W56/00 ,  H04B17/391 ,  H04B17/364

    CPC classification number: H04J3/0661 ,  H04B17/364 ,  H04B17/391 ,  H04W56/004 ,  H04W56/0065

    Abstract: Apparatuses, methods, and systems for dynamically estimating a propagation time between a first node and a second node of a wireless network are disclosed. One method includes receiving, by the second node, from the first node a packet containing a first timestamp representing the transmit time of the packet, receiving, by the second node, from a local time source, a second timestamp corresponding with a time of reception of the first timestamp received from the first node, calculating a time difference between the first timestamp and the second timestamp, storing the time difference between the first timestamp and the second timestamp, calculating a predictive model for predicting the propagation time based the time difference between the first timestamp and the second timestamp, and estimating the propagation time between the first node and the second node at a time by querying the predictive model with the time.

    METHODS AND SYSTEMS FOR BACKGROUND CALIBRATION OF MULTI-PHASE PARALLEL RECEIVERS
    18.
    发明申请
    METHODS AND SYSTEMS FOR BACKGROUND CALIBRATION OF MULTI-PHASE PARALLEL RECEIVERS 审中-公开

    公开(公告)号：US20180351769A1

    公开(公告)日：2018-12-06

    申请号：US15992105

    申请日：2018-05-29

    Applicant: Kandou Labs, S.A.

    Inventor： Armin Tajalli ,  Richard Simpson

    IPC: H04L25/02 ,  H04L5/00 ,  H03M13/31 ,  H03K17/687 ,  H04B17/364 ,  H04J13/00

    CPC classification number: H04L25/0272 ,  H03K17/6871 ,  H03L7/06 ,  H03M13/31 ,  H04B17/364 ,  H04J13/004 ,  H04L5/0007 ,  H04L25/14 ,  H04L25/40

    Abstract: Methods and systems are described for receiving a plurality of signals in a signaling interval at a multi-input comparator (MIC), and responsively generating an analog linear combination of the received signals, amplifying the analog linear combination of the received signals using an integration stage, receiving the amplified differential voltage at two multi-phase receivers, each multi-phase receiver comprising one or more processing slices, each multi-phase receiver operating in a multi-phase processing path for processing the amplified differential voltage, wherein processing the amplified differential voltage includes generating output data decisions and phase-error information using a first multi-phase receiver of the two multi-phase receivers and selectively adjusting local speculative decision feedback equalization (DFE) slicing offsets of a second multi-phase receiver of the two multi-phase receivers according to the output data decisions generated by the first multi-phase receiver.

    Beacon Localization For A Client Device In Wireless Environment Applications
    20.
    发明申请
    Beacon Localization For A Client Device In Wireless Environment Applications 审中-公开

    公开(公告)号：US20180295557A1

    公开(公告)日：2018-10-11

    申请号：US15480796

    申请日：2017-04-06

    Applicant: Ossia Inc.

    Inventor： Hatem Ibrahim Zeine ,  Ahmad Moghaddam

    IPC: H04W40/24 ,  H04B7/04 ,  H04B17/327

    CPC classification number: H04B7/04 ,  H02J50/20 ,  H02J50/40 ,  H02J50/90 ,  H04B5/0037 ,  H04B17/27 ,  H04B17/318 ,  H04B17/364

    Abstract: A method of operating a transceiver system includes receiving, from a client power receiver, a signal at a plurality of antenna elements of an antenna array. The method also includes determining, by at least one of the antenna array and a processor of the transceiver system, and based at least in part on a fixed geometry of the plurality of antenna elements, a value of at least one waveform characteristic of the received signal. The method further includes computing, by the processor and based on the determined value of the at least one waveform characteristic, a transmission path of the signal from the client power receiver to each antenna element. The method also includes, assigning, by the processor and based on the computed transmission path, a location of the client power receiver in a wireless data transmission and power delivery environment.

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