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    MU-MIMO Precoder Design and Use for a Wideband MMIMO System with Constrained RF Chains in a Multi-Path Environment
    1.
    发明申请
    MU-MIMO Precoder Design and Use for a Wideband MMIMO System with Constrained RF Chains in a Multi-Path Environment 审中-公开

    公开(公告)号：US20200091979A1

    公开(公告)日：2020-03-19

    申请号：US16617684

    申请日：2017-06-14

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Rakash SIVASIVA GANESAN ,  Wolfgang ZIRWAS ,  Berthold PANZNER

    IPC: H04B7/06 ,  H04B7/0452 ,  H04L5/00 ,  H04B7/0456

    Abstract: For a system with multiple Antenna Elements, AEs, to be used to transmit multiple symbols to multiple user equipments, UEs, and with multiple time sample positions, where the symbols occupy a time-frequency resource space and wherein at least some of the AEs are powered by constrained RF chains having functionalities that are simplified relative to full RF chains, precoder coefficients are generated for the multiple AEs taking into consideration multipath components of a signal to be transmitted from the multiple AEs to the multiple UEs. The generating forms precoder coefficients for individual ones of the constrained RF chains at corresponding certain time sample positions of the symbols. The signal is transmitted from the multiple AEs to the multiple UEs using FDMA at least by applying the generated precoder coefficients to the multiple AEs over the multiple time sample positions and time-frequency resource space of the symbols.

    ENHANCED BLIND CONFIGURATION OF A CELL
    2.
    发明申请
    ENHANCED BLIND CONFIGURATION OF A CELL 有权

    公开(公告)号：US20220271884A1

    公开(公告)日：2022-08-25

    申请号：US17627360

    申请日：2020-06-26

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Elena VIRTEJ ,  Mikko SÄILY ,  Wolfgang ZIRWAS ,  Tero HENTTONEN ,  Ingo VIERING ,  Lars DALSGAARD

    IPC: H04L5/00 ,  H04W76/15

    Abstract: Disclosed is a method comprising providing a primary cell capable of serving a terminal device; determining a candidate secondary cell group, comprising one or more cells that have coverage area within the coverage are of the primary cell; determining, from the candidate secondary cell group, a cell that, based on information obtained before or during a connection setup signalling, has the highest probability of being successfully configured as a secondary cell for an inter-site carrier aggregation for the terminal device; and configuring the cell as the secondary cell for the inter-site carrier aggregation.

    CHANNEL ESTIMATION IN WIRELESS COMMUNICATIONS
    3.
    发明申请
    CHANNEL ESTIMATION IN WIRELESS COMMUNICATIONS 审中-公开
    无线通信中的信道估计

    公开(公告)号：US20150381388A1

    公开(公告)日：2015-12-31

    申请号：US14766527

    申请日：2013-02-08

    Applicant: NOKIA SOLUTIONS AND NETWORKS OY

    Inventor： Wolfgang ZIRWAS

    IPC: H04L25/02 ,  H04W56/00 ,  H04L5/00

    CPC classification number: H04L25/0204 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/005 ,  H04W56/001

    Abstract: Transmission of reference symbols for multiple carriers is coordinated to cause coherent transmission of the reference symbols for facilitating a channel estimation procedure for the multiple carriers on a bandwidth extending over the multiple carriers. At a receiving device the coordinated transmission of the reference symbols for multiple carriers is received on the extended bandwidth and a channel estimation procedure is provided based on the reference symbols received on the bandwidth extending over the multiple carriers.

    Abstract translation: 协调多个载波的参考符号的传输以引起参考符号的相干传输，以便于在多个载波上延伸的带宽上的多个载波的信道估计过程。 在接收设备处，在扩展带宽上接收多个载波的参考符号的协调传输，并且基于在多个载波上延伸的带宽上接收到的参考符号来提供信道估计过程。

    Modified Type II Control State Information Reporting
    4.
    发明公开
    Modified Type II Control State Information Reporting 审中-公开

    公开(公告)号：US20240259063A1

    公开(公告)日：2024-08-01

    申请号：US18425682

    申请日：2024-01-29

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Wolfgang ZIRWAS

    IPC: H04B7/06 ,  H04W8/22

    CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04B7/066 ,  H04W8/22

    Abstract: Modified type II control state information (CSI) reporting for achieving explicit CSI knowledge is provided. A method may be performed by providing, to a user equipment, a plurality of channel state information reference signals over a single beam and receiving channel state information from the user equipment. Explicit channel state information may be determined from a channel transfer function for some or all frequency subbands based on the received channel state information.

    Channel State Information Reporting
    7.
    发明公开
    Channel State Information Reporting 审中-公开

    公开(公告)号：US20240187284A1

    公开(公告)日：2024-06-06

    申请号：US18493887

    申请日：2023-10-25

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Luca Rose ,  Wolfgang ZIRWAS ,  Muhammad Karam SHEHZAD

    IPC: H04L25/02 ,  H04B7/06

    CPC classification number: H04L25/0242 ,  H04B7/0626 ,  H04L25/0254

    Abstract: Apparatuses and methods in a communication system are disclosed. A channel predictor is determined to be used in a connection between a base station and a terminal device. The predictor is trained using channel state information of the connection and a predictor function determined to be used both in the base station and terminal device. The base station calculates a predicted state of the channel utilising the predictor function and transmits payload data to the terminal device. The base station receives update information to the predicted state of the channel from the terminal device, where the update information is the variation between the channel predicted at the terminal device and the measured channel.

    SYNCHRONIZING TSN MASTER CLOCKS IN WIRELESS NETWORKS
    8.
    发明申请
    SYNCHRONIZING TSN MASTER CLOCKS IN WIRELESS NETWORKS 有权

    公开(公告)号：US20210144666A1

    公开(公告)日：2021-05-13

    申请号：US17259807

    申请日：2018-07-25

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Rakash SIVASIVA GANESAN ,  Wolfgang ZIRWAS ,  Berthold PANZNER

    IPC: H04W56/00 ,  H04J3/06

    Abstract: A synchronization signal is received at a user equipment from a base station. The user equipment synchronizes clocks between the user equipment and the base station using a combination of sample and sub-sample timing determined based at least in part on the synchronization signal. At a base station, the base station transmits toward a user equipment a synchronization signal. The base station synchronizes clocks between the base station and the user equipment using a combination of sample and sub-sample timing determined based on at least the synchronization signal. Methods, apparatus, software, and computer program products are disclosed.

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