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    PRECODING INFORMATION
    2.
    发明申请
    PRECODING INFORMATION 有权

    公开(公告)号：US20220393743A1

    公开(公告)日：2022-12-08

    申请号：US17730676

    申请日：2022-04-27

    Applicant: Nokia Technologies Oy

    Inventor： Filippo TOSATO ,  Rana AHMED SALEM

    IPC: H04B7/06 ,  H04B7/0456

    Abstract: Method and apparatus for providing channel state information report, comprising: receiving configuration information for configuring a measurement window to form a compression matrix of a port selection codebook from a codebook set of vector components, wherein the configuration information defines the size of the measurement window, which is common to all of at least one layer to be reported;
    selecting a number of indices of the measurement window based on the configuration information to form the compression matrix from the codebook set of vector components; and remapping the selected indices, associated to vector components of the compression matrix, with respect to an index of a reference vector component, such that the index of the reference vector component is remapped to a first index of the measurement window; reporting channel state information including precoding matrix indicator to a network, the precoding matrix indicator comprising information of the compression matrix after remapping.

    ENHANCED FREQUENCY COMPRESSION FOR OVERHEAD REDUCTION FOR CSI REPORTING AND USAGE
    4.
    发明申请
    ENHANCED FREQUENCY COMPRESSION FOR OVERHEAD REDUCTION FOR CSI REPORTING AND USAGE 有权

    公开(公告)号：US20220352956A1

    公开(公告)日：2022-11-03

    申请号：US17862958

    申请日：2022-07-12

    Applicant: Nokia Technologies Oy

    Inventor： Rana AHMED SALEM ,  Filippo TOSATO ,  Marco MASO ,  William HILLERY

    IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/16

    Abstract: In accordance with an example embodiment of the present invention, a method comprising: selecting, by a user equipment, a subset of linear combination coefficients from a linearized two-dimensional matrix having columns of frequency domain components and rows of spatial beams components for channel state information determination, wherein the number of linear combination coefficients in the subset is less than all of the linear combination coefficients; determining indication comprising information associated with column indices of the selected subset of linear combination coefficients from the linearized two-dimensional matrix, wherein the indication excludes the index of the column with lowest index of the linearized two-dimensional matrix; determining compressed channel state information comprising locations in the linearized two-dimensional matrix of the subset of linear combination coefficients and corresponding values of the linear combination coefficients at those locations; and reporting, from the user equipment toward the base station, the compressed channel state information.

    CHANNEL PREDICTION FRAMEWORK FOR RADIO COMMUNICATION
    5.
    发明申请
    CHANNEL PREDICTION FRAMEWORK FOR RADIO COMMUNICATION 有权

    公开(公告)号：US20220286324A1

    公开(公告)日：2022-09-08

    申请号：US17624902

    申请日：2019-07-12

    Applicant: Nokia Technologies Oy

    Inventor： Rana AHMED SALEM ,  Marco MASO ,  Filippo TOSATO

    IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

    Abstract: A method for predicting channel state information is described. The method includes determining whether or not geodesic prediction is to be performed and transmitting the determination of whether or not geodesic prediction is to be performed in a first part of uplink control signaling. In response to determining that geodesic prediction is not to be performed, the method includes transmitting a current channel estimate in a second part of uplink control signaling, and in response to determining that geodesic prediction is to be performed, the method includes transmitting either a determined current value of a tangent vector, or a determined step size parameter, or both the determined current value of the tangent vector and the determined step size parameter in the second part of uplink control signaling. Channel state information is predicted based on information provided in the first and second parts of uplink control signaling.

    Enhanced Frequency Compression for Overhead Reduction for CSI Reporting and Usage
    6.
    发明申请
    Enhanced Frequency Compression for Overhead Reduction for CSI Reporting and Usage 审中-公开

    公开(公告)号：US20200186224A1

    公开(公告)日：2020-06-11

    申请号：US16705368

    申请日：2019-12-06

    Applicant: Nokia Technologies Oy

    Inventor： Rana AHMED SALEM ,  Filippo TOSATO ,  Marco MASO ,  William HILLERY

    IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/16

    Abstract: In accordance with an example embodiment of the present invention, a method comprising: selecting, by a user equipment, a subset of linear combination coefficients from a linearized two-dimensional matrix having columns of frequency domain components and rows of spatial beams components for channel state information determination, wherein the number of linear combination coefficients in the subset is less than all of the linear combination coefficients; determining indication comprising information associated with column indices of the selected subset of linear combination coefficients from the linearized two-dimensional matrix, wherein the indication excludes the index of the column with lowest index of the linearized two-dimensional matrix; determining compressed channel state information comprising locations in the linearized two-dimensional matrix of the subset of linear combination coefficients and corresponding values of the linear combination coefficients at those locations; and reporting, from the user equipment toward the base station, the compressed channel state information.

    CSI Triggering and Configuration Enhancements for Partial-Reciprocity Based Port Selection Codebook
    7.
    发明公开
    CSI Triggering and Configuration Enhancements for Partial-Reciprocity Based Port Selection Codebook 审中-公开

    公开(公告)号：US20230283341A1

    公开(公告)日：2023-09-07

    申请号：US18019840

    申请日：2020-08-07

    Applicant: Nokia Technologies Oy

    Inventor： Salah Eddine Hajri ,  Frederick VOOK ,  Rana AHMED SALEM ,  Eugene VISOTSKY ,  William HILLERY ,  Filippo TOSATO

    IPC: H04B7/06 ,  H04L5/00 ,  H04W72/23

    CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04L5/0048 ,  H04W72/23

    Abstract: A method, apparatus, and a computer-readable storage medium are provided for partial reciprocity-based adaptive port selection codebook configuration. A method, apparatus, and a computer-readable storage medium are provided for partial reciprocity- based adaptive port selection codebook configuration. In an example implementation, the method may include a user equipment receiving at least one channel state information reporting configuration from a network node, the at least one channel state information reporting configuration including precoding matrix indicator as reporting quantity and an adaptive port selection codebook configuration for the precoding matrix indicator and determining whether partial reciprocity operations for adaptive port selection precoding matrix indicator are activated, the determining based at least on information in a sounding reference signal (SRS) request field of a downlink control information, an active semi- persistent SRS, or a periodic SRS configured by higher layers.

    APPARATUS, METHOD AND COMPUTER PROGRAM
    9.
    发明申请
    APPARATUS, METHOD AND COMPUTER PROGRAM 有权

    公开(公告)号：US20220200667A1

    公开(公告)日：2022-06-23

    申请号：US17605253

    申请日：2019-05-07

    Applicant: Nokia Technologies Oy

    Inventor： Salah Eddine HAJRI ,  Rana AHMED SALEM ,  Filippo TOSATO ,  Marco MASO

    IPC: H04B7/0417 ,  H04B7/0456 ,  H04L5/00

    Abstract: There is provided an apparatus, said apparatus comprising means for receiving a multiple input multiple output signal from a network, determining a frequency domain basis subset for each layer of the multiple input multiple output signal, determining from the frequency domain basis subset a number, MC, of frequency domain components common to each layer, determining, from the frequency domain basis subset, a number of layer-specific frequency domain components and providing to the network, in uplink control information, an indication of the frequency domain components common to each layer and the layer-specific frequency domain components.

    REPORTING CHANNEL STATE INFORMATION (CSI) PRECODING MATRIX INDICATOR (PMI)
    10.
    发明申请
    REPORTING CHANNEL STATE INFORMATION (CSI) PRECODING MATRIX INDICATOR (PMI) 有权

    公开(公告)号：US20250141524A1

    公开(公告)日：2025-05-01

    申请号：US19007060

    申请日：2024-12-31

    Applicant: Nokia Technologies Oy

    Inventor： Filippo TOSATO ,  Rana AHMED SALEM

    IPC: H04B7/06 ,  H04B7/0456

    Abstract: Method and apparatus for providing channel state information report, comprising: receiving configuration information for configuring a measurement window to form a compression matrix of a port selection codebook from a codebook set of vector components, wherein the configuration information defines the size of the measurement window, which is common to all of at least one layer to be reported; selecting a number of indices of the measurement window based on the configuration information to form the compression matrix from the codebook set of vector components; and remapping the selected indices, associated to vector components of the compression matrix, with respect to an index of a reference vector component, such that the index of the reference vector component is remapped to a first index of the measurement window; reporting channel state information including precoding matrix indicator to a network, the precoding matrix indicator comprising information of the compression matrix after remapping.

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