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    Detection of weak users in beam selection for massive MIMO receiver
    2.
    发明授权
    Detection of weak users in beam selection for massive MIMO receiver 有权

    公开(公告)号：US11082119B2

    公开(公告)日：2021-08-03

    申请号：US17053036

    申请日：2018-05-10

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Virgile Garcia ,  Ning He

    IPC: H04B7/0413 ,  H04B7/08 ,  H04B7/06

    Abstract: There is disclosed a method of operating a receiver arrangement in a radio access network. The receiver arrangement is adapted for receiving a plurality of antenna signals from a plurality of antennas, wherein the plurality of signals is collected to form a collected signal. The method includes transforming the collected signal into beam space based on a transform base, to provide a set of beams, selecting a subset of beams from the set of beams and evaluating the subset of beams for a quality requirement. If evaluating results in the quality requirement not being fulfilled, either the subset of selected beams is changed and it is returned to evaluating or the transform base is changed and it is returned to transforming. The disclosure also pertains to related methods and devices.

    MULTI-SUBCARRIER SYSTEM WITH MULTIPLE NUMEROLOGIES
    3.
    发明申请
    MULTI-SUBCARRIER SYSTEM WITH MULTIPLE NUMEROLOGIES 有权

    公开(公告)号：US20210212064A1

    公开(公告)日：2021-07-08

    申请号：US17203536

    申请日：2021-03-16

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： Karl Werner ,  Ning He ,  Robert Baldemair

    IPC: H04W72/04 ,  H04L5/00

    Abstract: A method of operating a user equipment comprises addressing multi-subcarrier system resources using multiple different numerologies available within a single carrier, the multiple different numerologies comprising a first numerology having resource blocks (RBs) with a first bandwidth and a first subcarrier spacing, Δf1, and a second numerology having RBs with a second bandwidth and a second subcarrier spacing, Δf2, which is different from Δf1, wherein the first numerology is aligned in the frequency domain relative to a frequency reference, Fref, according to m*Δf1+Fref and the second numerology is aligned in the frequency domain relative to the frequency reference, Fref, according to n*Δf2+Fref, where m and n are integers. The method further comprises transmitting and/or receiving information within the single carrier according to the at least one of the multiple different numerologies.

    MULTI-SUBCARRIER SYSTEM WITH MULTIPLE NUMEROLOGIES
    6.
    发明申请
    MULTI-SUBCARRIER SYSTEM WITH MULTIPLE NUMEROLOGIES 审中-公开

    公开(公告)号：US20180124791A1

    公开(公告)日：2018-05-03

    申请号：US15784968

    申请日：2017-10-16

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： Karl Werner ,  Ning He ,  Robert Baldemair

    IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

    CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/001 ,  H04L27/2604 ,  H04L27/265 ,  H04W72/042

    Abstract: A method of operating a user equipment comprises addressing multi-subcarrier system resources using multiple different numerologies available within a single carrier, the multiple different numerologies comprising a first numerology having resource blocks (RBs) with a first bandwidth and a first subcarrier spacing, Δf1, and a second numerology having RBs with a second bandwidth and a second subcarrier spacing, Δf2, which is different from Δf1, wherein the first numerology is aligned in the frequency domain relative to a frequency reference, Fref, according to m*Δf1+Fref and the second numerology is aligned in the frequency domain relative to the frequency reference, Fref, according to n*Δf2+Fref, where m and n are integers. The method further comprises transmitting and/or receiving information within the single carrier according to the at least one of the multiple different numerologies.

    Reference Signal Allocation for Flexible Data Lengths
    7.
    发明申请
    Reference Signal Allocation for Flexible Data Lengths 有权
    灵活数据长度的参考信号分配

    公开(公告)号：US20170041115A1

    公开(公告)日：2017-02-09

    申请号：US15286639

    申请日：2016-10-06

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Robert Baldemair ,  Ning He

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/1469 ,  H04W72/0446 ,  H04W72/0486

    Abstract: Physical layer characteristics, e.g., reference signal density, reference signal distribution, data parameters, etc., are defined in the physical layer for sub-frames of a transmission time interval (TTI) allocated to data packet(s) based on the number of allocated sub-frames. The flexibility provided by the solution presented herein enables the associated wireless system to better define those physical layer characteristics necessary to meet signal quality and system requirements without unnecessarily overburdening the system overhead. Thus, the reference signal overhead may be reduced, which leads to reduced system overhead and/or increased spectrum efficiency.

    Abstract translation: 基于分配给数据分组的传输时间间隔（TTI）的子帧的物理层，在物理层中定义物理层特性，例如参考信号密度，参考信号分布，数据参数等。 分配子帧。 由本文提出的解决方案提供的灵活性使得相关联的无线系统能够更好地定义满足信号质量和系统要求所必需的那些物理层特性，而不会不必要地使系统开销过高。 因此，可以减少参考信号开销，这导致降低的系统开销和/或增加的频谱效率。

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