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    PEAK TO AVERAGE POWER RATIO REDUCTION IN WIRELESS COMMUNICATION SYSTEMS
    3.
    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.

    MODULATION METHOD FOR POWER-EFFICIENT TRANSMISSIONS
    5.
    发明公开
    MODULATION METHOD FOR POWER-EFFICIENT TRANSMISSIONS 审中-公开

    公开(公告)号：US20240364567A1

    公开(公告)日：2024-10-31

    申请号：US18683897

    申请日：2021-08-18

    Applicant: Nokia Technologies Oy

    Inventor： Markku RENFORS ,  Ismael PERUGA NASARRE ,  Toni Aleksi LEVANEN ,  Juha YLI-KAAKINEN ,  Mikko VALKAMA

    IPC: H04L27/20 ,  H04L27/26

    CPC classification number: H04L27/2007 ,  H04L27/2636

    Abstract: This document discloses a solution for modulating and demodulating signals transferred over a communication channel. According to an aspect, a method comprises: storing a database for mapping rules for mapping a block of N bits into M modulation symbol phase transitions, wherein a phase transition between consecutive modulation symbols is limited to less than or equal to ∓π/2, wherein M is smaller than N, and wherein M is the smallest number required for realizing 2N different phase-transition combinations; determining an initial phase; acquiring a block of N bits and modulating the block of N bits into M phase symbol transitions from the initial phase by using bit values of the block of N bits and the mapping rules, thus acquiring M modulation symbols; performing said determining, acquiring, and modulating for further blocks of N bits, thus acquiring a sequence of K modulation symbols; allocating the sequence of K modulation symbols to sub-carriers of a multi-carrier symbol and causing transmission of the multi-carrier symbol over a radio interface.

    RESOURCE ELEMENT ALLOCATION IN CELLULAR SYSTEM
    6.
    发明公开
    RESOURCE ELEMENT ALLOCATION IN CELLULAR SYSTEM 审中-公开

    公开(公告)号：US20240187148A1

    公开(公告)日：2024-06-06

    申请号：US18548289

    申请日：2021-03-23

    Applicant: Nokia Technologies Oy

    Inventor： Ismael PERUGA NASARRE ,  Kari Pekka PAJUKOSKI ,  Esa Tapani TIIROLA ,  Juha YLI-KAAKINEN ,  Mikko VALKAMA

    IPC: H04L5/00 ,  H04W72/044

    CPC classification number: H04L5/0007 ,  H04L5/0092 ,  H04W72/044

    Abstract: This document discloses a solution for occupying time-frequency resources for a wireless transmission. According to an aspect, a method comprises: determining time-frequency resources in a channel configuration, wherein the time-frequency resources is a combination of a first number of frequency resources and a number of time resources, wherein the first number of frequency resources is defined in units of consecutive resource blocks each having a determined number of resource elements; determining whether or not the first number of frequency resources is expressible as 2a·3b·5c where [a, b, c] are non-negative integers, and in case the first number of frequency resources is not expressible as 2a·3b·5c, determining a second number of frequency resources and a third number of frequency resources in the first number of frequency resources, wherein the second number of frequency resources is expressible as 2a·3b·5c, wherein the third number of frequency resources is not overlapping with the second number of frequency resources; occupying the second number of frequency resources within the number of time resources with information symbols and occupying the third number of frequency resources within the number of time resources for a wireless transmission; and generating and causing the wireless transmission comprising the occupied frequency resources.

    UPLINK CARRIER AGGREGATION IN LOW MAXIMUM POWER REDUCTION MODE FOR WIRELESS NETWORKS
    9.
    发明公开
    UPLINK CARRIER AGGREGATION IN LOW MAXIMUM POWER REDUCTION MODE FOR WIRELESS NETWORKS 审中-公开

    公开(公告)号：US20240072948A1

    公开(公告)日：2024-02-29

    申请号：US18320050

    申请日：2023-05-18

    Applicant: Nokia Technologies Oy

    Inventor： Esa Tapani TIIROLA ,  Kari Juhani HOOLI ,  Ismael PERUGA NASARRE ,  Oskari TERVO ,  Mikko VALKAMA ,  Juha YLI-KAAKINEN

    IPC: H04L5/00

    CPC classification number: H04L5/001

    Abstract: According to example embodiments, a method may include transmitting, by a user device to a wireless network node, data via a plurality of uplink component carriers including at least a first uplink component carrier and a second uplink component carrier; wherein a first subset of physical resource blocks for the first component carrier is contiguous with a second subset of physical resource blocks for the second component carrier; wherein the first component carrier and the second component carrier have a same power spectral density; and applying a modified radio frequency requirement by the user device wherein the modified radio frequency requirement impacts a transmission power of the first uplink component carrier and of the second uplink component carrier.

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