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    Methods and Systems for Multi-Model, Multi-Layer Perceptron Based Non-Linear Interference Management in Multi-Technology Communication Devices
    11.
    发明申请
    Methods and Systems for Multi-Model, Multi-Layer Perceptron Based Non-Linear Interference Management in Multi-Technology Communication Devices 审中-公开
    多技术通信设备中多模式，多层感知器的非线性干扰管理方法与系统

    公开(公告)号：US20160072543A1

    公开(公告)日：2016-03-10

    申请号：US14849532

    申请日：2015-09-09

    Applicant: QUALCOMM Incorporated

    Inventor： Farrokh Abrishamkar ,  Sheng-Yuan Tu ,  Parisa Cheraghi ,  lnsung Kang ,  Jeremy Stein

    IPC: H04B1/40 ,  H04B15/00

    CPC classification number: H04B1/40 ,  H04B1/123 ,  H04B1/525 ,  H04B15/00

    Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a multi-layer perceptron neural network with Hammerstein structure by dividing an aggressor signal into real and imaginary components, augmenting the components by weight factors, executing a linear combination of the augmented components, and executing a nonlinear sigmoid function for the combined components at a hidden layer of multi-layer perceptron neural network to produce a hidden layer output signal. At an output layer, hidden layer output signals may be augmented by weight factors, and the augmented hidden layer output signals may be linearly combined to produce real and imaginary components of an estimated jammer signal. A linear filter function may be executed for the components of the jammer signal, and to produce a nonlinear interference estimate used to cancel the nonlinear interference of a victim signal.

    Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用具有Hammerstein结构的多层感知器神经网络来估计非线性干扰，通过将侵略者信号划分成实部和虚部，通过权重因子增加分量，执行增强分量的线性组合，以及执行非线性Sigmoid函数 组合成分在隐层多层感知神经网络中产生隐层输出信号。 在输出层，可以通过加权因子来增加隐层输出信号，并且增强的隐层输出信号可以被线性组合以产生估计的干扰信号的实部和虚部。 可以对干扰信号的分量执行线性滤波器功能，并且产生用于消除受害信号的非线性干扰的非线性干扰估计。

    Techniques for updating reference signals
    15.
    发明授权
    Techniques for updating reference signals 有权

    公开(公告)号：US11539484B2

    公开(公告)日：2022-12-27

    申请号：US16860036

    申请日：2020-04-27

    Applicant: QUALCOMM Incorporated

    Inventor： Yan Zhou ,  Tao Luo ,  Ruhua He ,  Stefan Brueck ,  Parisa Cheraghi

    IPC: H04L5/00 ,  H04W52/24 ,  H04W52/14 ,  H04W72/04 ,  H04B7/06 ,  H04L25/02 ,  H04W16/28 ,  H04W56/00 ,  H04W80/02

    Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI). For example, the quasi co-location (QCL) of periodic CSI-RS may be dynamically updated by the MAC-CE or DCI when the periodic CSI-RS is for BFD RS. Also, a semi-persistent CSI-RS or aperiodic CSI-RS may act as a BFD RS. An enhanced update procedure may be used to update the path loss RS dynamically using MAC-CE or DCI. In some cases, the path loss RS parameters updated via MAC-CE or DCI may overwrite the previously RRC configured path loss RS parameters. In another example, if the path loss RS is not configured, then the path loss RS by default may be the spatial relation reference signal of the corresponding uplink beam.

    Methods and apparatus to facilitate dual stage channel state information reference signal (CSI-RS) selection for CSI feedback
    16.
    发明授权
    Methods and apparatus to facilitate dual stage channel state information reference signal (CSI-RS) selection for CSI feedback 有权

    公开(公告)号：US11496260B2

    公开(公告)日：2022-11-08

    申请号：US16449055

    申请日：2019-06-21

    Applicant: QUALCOMM Incorporated

    Inventor： Parisa Cheraghi ,  Alexei Yurievitch Gorokhov

    IPC: H04L5/00 ,  H04W72/08

    Abstract: Apparatus, methods, and computer-readable media for facilitating dual stage CSI selection for CSI feedback are disclosed herein. An example method of wireless communication at a UE includes, after detecting a CSI report triggering event, selecting a subset of CSI-RS resources from a set of CSI-RS resources configured for the UE by applying at least one of an RSRP threshold or an SINR threshold to each CSI-RS resource of the set of CSI-RS resources. The example method also includes selecting a CSI-RS resource from the subset of CSI-RS resources based on an efficiency metric associated with each of the CSI-RS resources of the subset of CSI-RS resources. The example method also includes transmitting a CSI report to a base station, the CSI report including a CQI associated with the selected CSI-RS and at least one of a PMI, an RI, or a wideband component of the PMI.

    Measurement report triggering techniques for multiple component carriers
    17.
    发明授权
    Measurement report triggering techniques for multiple component carriers 有权

    公开(公告)号：US11489638B2

    公开(公告)日：2022-11-01

    申请号：US16701283

    申请日：2019-12-03

    Applicant: QUALCOMM Incorporated

    Inventor： Alexandros Manolakos ,  Parisa Cheraghi ,  Hari Sankar ,  Joseph Binamira Soriaga ,  Tao Luo ,  Tingfang Ji ,  Peter Gaal ,  Alexei Yurievitch Gorokhov

    IPC: H04L5/00 ,  H04W72/04 ,  H04L1/16

    Abstract: Methods, systems, and devices for wireless communications are described that identify a minimum gap between a control channel transmission on a first component carrier (CC) that triggers a measurement report and an associated reference signal transmission on a second CC. The minimum gap may be based on a resource associated with a control channel transmission and a resource associated with the reference signal transmission. The first CC and the second CC have different numerologies and the minimum gap may be identified in terms of a number of OFDM symbols of the second CC that carries the reference signal transmission. The minimum gap also may be identified based on a location of the control channel transmission within a slot of the first CC. In cases where beam switching is used, the minimum gap may be further based at least in part on a beam switch time for performing the beam switching.

    Beam search for precoder for channel state feedback
    19.
    发明授权
    Beam search for precoder for channel state feedback 有权

    公开(公告)号：US11265070B2

    公开(公告)日：2022-03-01

    申请号：US16749575

    申请日：2020-01-22

    Applicant: QUALCOMM Incorporated

    Inventor： Parisa Cheraghi ,  Veljko Boljanovic ,  Anas Tom ,  Alexei Yurievitch Gorokhov

    IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0456 ,  H04L27/26 ,  H04B17/318 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a digital simulation to determine a precoding matrix indicator (PMI) associated with a digital reception beam. A base station may send, to the UE, a reference signal. The UE may perform a coarse beam search on the reference signal using non-oversampled digital reception beams. The UE may measure the signal strength of the reference signal for each of the non-oversampled digital reception beams and select the non-oversampled digital reception beam with the strongest signal. The UE may perform a refined beam search procedure on the selected beam by using a set of oversampled digital reception beams which correspond to the selected non-oversampled digital reception beam. The UE may determine the PMI associated with the strongest oversampled digital reception beam and send the PMI in a report to the base station.

    Adaptive hybrid precoder selection in 2D antenna configuration
    20.
    发明授权
    Adaptive hybrid precoder selection in 2D antenna configuration 有权

    公开(公告)号：US10804984B1

    公开(公告)日：2020-10-13

    申请号：US16432299

    申请日：2019-06-05

    Applicant: QUALCOMM Incorporated

    Inventor： Parisa Cheraghi ,  Ahmed Elshafie ,  Alexei Yurievitch Gorokhov

    IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/02

    Abstract: Apparatus, methods, and computer-readable media for adaptive hybrid precoder selection in 2D antenna configurations are disclosed herein. An example method of wireless communication at a UE includes estimating a channel based on CSI-RS received on each port of a plurality of CSI-RS ports from a base station. The example method includes determining, based on the channel estimation, whether to perform disjoint PMI processing or joint PMI processing when determining a first component of a PMI. The example, method includes determining the first component of the PMI based on the determined disjoint PMI processing or joint PMI processing.

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