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    METHOD, APPARATUS AND COMPUTER PROGRAM
    1.
    发明申请
    METHOD, APPARATUS AND COMPUTER PROGRAM 有权

    公开(公告)号：US20250047431A1

    公开(公告)日：2025-02-06

    申请号：US18790801

    申请日：2024-07-31

    Applicant: Nokia Technologies Oy

    Inventor： Juha YLI-KAAKINEN ,  Esa Tapani TIIROLA ,  Oskari TERVO ,  Mikko VALKAMA

    IPC: H04L5/00

    Abstract: There is provided an apparatus comprising means for: mapping frequency-domain symbols on a plurality of subcarriers into at least two sets, each set comprising symbols of at least one of the plurality of subcarriers; for each set: performing symbol-wise rotation based on a complex coefficient value and converting the rotated symbols from the frequency domain to the time domain; or converting the symbols from the frequency domain to the time domain and performing symbol-wise rotation on the time-domain symbols based on the complex coefficient value; inserting a cyclic prefix into each time-domain symbol; concatenating the time-domain symbols resulting from the cyclic prefix insertion to create a sub-band waveform; and performing sub-band filtering, interpolation and combination based on the sub-band waveform for each of the sets to generate a single waveform.

    SENSING IN CELLULAR COMMUNICATION NETWORKS
    3.
    发明公开
    SENSING IN CELLULAR COMMUNICATION NETWORKS 审中-公开

    公开(公告)号：US20240196349A1

    公开(公告)日：2024-06-13

    申请号：US18500356

    申请日：2023-11-02

    Applicant: Nokia Technologies Oy

    Inventor： Jukka Olavi TALVITIE ,  Esa Tapani TIIROLA ,  Oskari TERVO ,  Kari Juhani HOOLI ,  Sami-Jukka HAKOLA ,  Mikko VALKAMA

    IPC: H04W56/00 ,  H04W74/00 ,  H04W74/08

    CPC classification number: H04W56/0015 ,  H04W74/006 ,  H04W74/0808

    Abstract: According to an example aspect of the present disclosure, there is provided a method comprising, determining, by an apparatus, first information for reception of a synchronization signal block from a cell of a source wireless network node, determining, by the apparatus, second information for reception of at least one part of a system information block from the cell of the source wireless network node, wherein the second information is unchanged compared to at least one part of a previous system information block, receiving, by the apparatus, the synchronization signal block and the system information block and performing, by the apparatus, processing of the first information of the synchronization signal block and the second information of the at least one part of the system information block.

    APPARATUS AND METHOD FOR COMPENSATING PHASE NOISE
    6.
    发明申请
    APPARATUS AND METHOD FOR COMPENSATING PHASE NOISE 有权

    公开(公告)号：US20240372770A1

    公开(公告)日：2024-11-07

    申请号：US18254723

    申请日：2021-11-19

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： Ismael PERUGA ,  Toni LEVANEN ,  Mikko VALKAMA ,  Markku RENFORS

    IPC: H04L27/26 ,  H04L5/00

    Abstract: Disclosed is a method for compensating phase noise. A symbol comprising one or more data sub-symbols and one or more pilot sub-symbols is received (501). A sequence of first phase noise estimates is obtained (502) based at least partly on the one or more pilot sub-symbols. A first filter is used to obtain (503, 507) a first sequence of filtered phase noise estimates from at least a subset of the one or more data sub-symbols based at least partly on the sequence of first phase noise estimates. The first sequence of filtered phase noise estimates is stored (506, 510). Phase noise compensation is applied (512) to the one or more data sub-symbols based at least partly on the first sequence of filtered phase noise estimates.

    PEAK TO AVERAGE POWER RATIO REDUCTION IN WIRELESS COMMUNICATION SYSTEMS
    9.
    发明申请
    PEAK TO AVERAGE POWER RATIO REDUCTION IN WIRELESS COMMUNICATION SYSTEMS 有权

    公开(公告)号：US20240406048A1

    公开(公告)日：2024-12-05

    申请号：US18691282

    申请日：2021-09-16

    Applicant: Nokia Technologies Oy

    Inventor： Juha YLI-KAAKINEN ,  Ismael PERUGA NASARRE ,  Mikko VALKAMA ,  Jari Yrjänä HULKKONEN

    IPC: H04L27/26

    Abstract: According to an example aspect of the present disclosure, there is provided a method for transmitting a Discrete Fourier Transform-spread-Orthogonal Frequency Domain Multiplexed. DFT-s-OFDM, signal, the method comprising, converting, by a wireless transmitter, complex-valued symbols to polar domain symbols, wherein the complex-valued symbols are modulated using at least phase shift keying, processing, by the wireless transmitter, angle values of the polar domain symbols to avoid angle differences larger than π rad, or lower than −π rad, between consecutive angle values, interpolating, by the wireless transmitter, at least the processed angle values by an interpolation factor N/L, wherein L is a length of Fast Fourier Transform, FFT, and Nis length of Inverse FFT, IFFT, converting, by the wireless transmitter, the interpolated angle values into complex domain symbols and generating, by the wireless transmitter, a DFT-s-OFDM waveform comprising said complex domain symbols.

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