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    CSI (channel state information)-RS (reference signal) overhead reduction for class B FD (full dimensional)-MIMO (multiple input multiple output) systems
    21.
    发明授权
    CSI (channel state information)-RS (reference signal) overhead reduction for class B FD (full dimensional)-MIMO (multiple input multiple output) systems 有权

    公开(公告)号：US11483842B2

    公开(公告)日：2022-10-25

    申请号：US16067929

    申请日：2016-12-23

    Applicant: Apple Inc.

    Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

    IPC: H04W72/08 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0417

    Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

    Beam combining based channel state information (CSI) feedback
    22.
    发明授权
    Beam combining based channel state information (CSI) feedback 有权

    公开(公告)号：US11303340B2

    公开(公告)日：2022-04-12

    申请号：US17259117

    申请日：2019-08-07

    Applicant: Apple Inc.

    Inventor： Victor Sergeev ,  Alexei Vladimirovich Davydov ,  Gregory Ermolaev ,  Dmitry Dikarev

    IPC: H04B7/0456 ,  H04B7/06

    Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for channel state information (CSI) reporting in a 5G network, the processing circuitry is to decode a radio resource control (RRC) configuration message, the RRC configuration message including first configuration information to configure determination of channel quality information (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI) for the CSI reporting. Second configuration information is decoded to configure codebook parameters for a high spatial resolution codebook associated with the PMI. A precoding matrix is determined based on the first configuration information, where a number of coefficients in at least one coefficient vector of the precoding matrix is configured using the second configuration information. CSI is encoded for transmission to a base station, the CSI including the RI and the PMI associated with the determined precoding matrix.

    Interference coordination for networks serving aerial vehicles
    23.
    发明授权
    Interference coordination for networks serving aerial vehicles 有权

    公开(公告)号：US11297691B2

    公开(公告)日：2022-04-05

    申请号：US16603171

    申请日：2018-05-01

    Applicant: Apple Inc.

    Inventor： Victor Sergeev ,  Seunghee Han ,  Feng Xue ,  Alexei Davydov ,  Gregory Morozov

    IPC: H04W88/10 ,  H04W76/11 ,  H04W76/27 ,  B64C39/02 ,  H04W36/20 ,  H04W92/20

    Abstract: Embodiments of interference coordination for aerial vehicle user equipment (UE) are described. In some embodiments, a base station (BS) is configured to select a subset of time-frequency resources dedicated for use in serving aerial vehicle UEs and communicate with the aerial vehicle UEs via the subset of time-frequency resources. In some embodiments, the BS may transmit signaling to a neighbor BS that indicates the BS has dedicated the subset of time-frequency resources for serving aerial vehicle UEs and the subset of time-frequency resources to be used. The BS may receive an indication from the neighbor BS that a neighbor BS is to dedicate the subset of time-frequency resources to serve aerial vehicle UE, and based on the indication, the BS may reduce transmission activities in the subset of time-frequency resources, including refraining from transmitting or reducing an amount of information or power level of signaling to the aerial vehicle UEs.

    CSI MEASUREMENT AND REPORT QUALITY DEFINITION FOR 5G NR MULTI-TRP
    24.
    发明申请
    CSI MEASUREMENT AND REPORT QUALITY DEFINITION FOR 5G NR MULTI-TRP 有权

    公开(公告)号：US20210359742A1

    公开(公告)日：2021-11-18

    申请号：US17287186

    申请日：2019-10-30

    Applicant: Apple Inc.

    Inventor： Bishwarup Mondal ,  Yushu Zhang ,  Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

    IPC: H04B7/06 ,  H04B7/0417 ,  H04W24/10 ,  H04W72/12 ,  H04W72/04

    Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.

    Antenna panel switching and beam indication
    25.
    发明授权
    Antenna panel switching and beam indication 有权

    公开(公告)号：US11006429B2

    公开(公告)日：2021-05-11

    申请号：US16098792

    申请日：2017-05-04

    Applicant: Apple Inc.

    Inventor： Alexei Vladimirovich Davydov ,  Gregory Vladimirovich Morozov ,  Victor Sergeev ,  Wook Bong Lee ,  Yuan Zhu

    IPC: H04W72/08 ,  H04B7/08 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0408 ,  H04W72/14

    Abstract: Devices and methods of joint antenna panel switching and beam selection are generally described. A user equipment (UE) can be configured to decode configuration information received via a higher layer for a plurality of receive (Rx) beams for the UE, the configuration information identifying a plurality of Rx beam indices for the plurality of Rx beams. The UE is configured to decode a physical layer (PHY) communication indicating an antenna panel index and an Rx beam index of the plurality of Rx beam indices, the antenna panel index identifying an antenna panel of a plurality of available antenna panels of the UE. The UE is configured to decode a downlink (DL) data transmission, wherein the DL data transmission is received using the antenna panel and a selected Rx beam of the plurality of Rx beams corresponding to the indicated Rx beam index.

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