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    System and method for random access communications
    1.
    发明授权
    System and method for random access communications 有权

    公开(公告)号：US11696336B2

    公开(公告)日：2023-07-04

    申请号：US17245955

    申请日：2021-04-30

    Applicant: Futurewei Technologies, Inc.

    Inventor： Young Hoon Kwon ,  Pengfei Xia ,  Bin Liu

    IPC: H04B7/06 ,  H04W74/08 ,  H04W72/044

    CPC classification number: H04W74/0833 ,  H04B7/0695 ,  H04W72/046

    Abstract: A method for operating an access node includes receiving a first random access preamble in a first random access resource, wherein the first random access preamble and the first random access resource at least partially identifies a first beam selected by a user equipment (UE), and wherein the first random access resource is one of a plurality of random access resources assigned to the UE, and determining that first additional information associated with the first beam is needed, and based thereon, sending a first message responsive to the first random access preamble, the first message including a first information set to request the additional information associated with the first beam, and receiving a second message including the first additional information associated with the first beam.

    System and Method for Random Access Communications
    5.
    发明申请
    System and Method for Random Access Communications 有权

    公开(公告)号：US20210329702A1

    公开(公告)日：2021-10-21

    申请号：US17245955

    申请日：2021-04-30

    Applicant: Futurewei Technologies, Inc.

    Inventor： Young Hoon Kwon ,  Pengfei Xia ,  Bin Liu

    IPC: H04W74/08 ,  H04B7/06

    Abstract: A method for operating an access node includes receiving a first random access preamble in a first random access resource, wherein the first random access preamble and the first random access resource at least partially identifies a first beam selected by a user equipment (UE), and wherein the first random access resource is one of a plurality of random access resources assigned to the UE, and determining that first additional information associated with the first beam is needed, and based thereon, sending a first message responsive to the first random access preamble, the first message including a first information set to request the additional information associated with the first beam, and receiving a second message including the first additional information associated with the first beam.

    Method and apparatus for non-codebook based uplink multiple-input and multiple-output
    6.
    发明授权
    Method and apparatus for non-codebook based uplink multiple-input and multiple-output 有权

    公开(公告)号：US10763943B2

    公开(公告)日：2020-09-01

    申请号：US15821338

    申请日：2017-11-22

    Applicant: Futurewei Technologies, Inc.

    Inventor： Bin Liu ,  Pengfei Xia ,  Richard Stirling-Gallacher

    IPC: H04L12/50 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/06 ,  H04W24/10 ,  H04W72/04

    Abstract: A method and an apparatus for selecting beams for non-codebook based uplink multiple-input and multiple-output are disclosed. In an embodiment, a method implemented by a user equipment (UE) includes receiving an allocation of at least one sounding reference signal (SRS) resource in an uplink subframe from a transmission and reception point (TRP) for a first set of uplink transmission beams, transmitting precoded SRSs in the at least one SRS resource to the TRP, wherein the precoded SRSs are precoded with UE-selected precoders and at least one rank and receiving an identification of two or more precoders for a second set of uplink transmission beams, wherein the second set of uplink transmission beams is selected from the first set of uplink transmission beams, and wherein the two or more precoders are based on the precoded SRSs.

    System and method for reporting beam information
    7.
    发明授权
    System and method for reporting beam information 有权

    公开(公告)号：US10743204B2

    公开(公告)日：2020-08-11

    申请号：US16001652

    申请日：2018-06-06

    Applicant: Futurewei Technologies, Inc.

    Inventor： Young Hoon Kwon ,  Pengfei Xia ,  Bin Liu

    IPC: H04W24/10 ,  H04W16/28 ,  H04W84/04

    Abstract: A method for reporting beam information includes setting, by a user equipment (UE), a report type of a beam information report, wherein the beam information report includes beam indices of communications beams being reported, a reference beam quality measurement of one of the communications beams reported, and a report type field conveying the report type, and sending, by the UE to an access node, the beam information report.

    UE-assisted SRS resource allocation
    8.
    发明授权
    UE-assisted SRS resource allocation 有权

    公开(公告)号：US10735157B2

    公开(公告)日：2020-08-04

    申请号：US15717531

    申请日：2017-09-27

    Applicant: Futurewei Technologies, Inc.

    Inventor： Bin Liu ,  Pengfei Xia

    IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W16/28 ,  H04B7/06 ,  H04B7/08

    Abstract: A dynamic UE capability message specifying a number of beams to be evaluated within different groups of UE TX beam directions associated with different antenna arrays of a UE may be communicated to a transmit receive point (TRP). Each group of UE TX beam directions may include beam directions that are candidates for uplink data transmission. Based on information in the dynamic UE capability message, the TRP can assign SRS resources (for uplink beam management or uplink channel sounding) and/or schedule a multi-layer MIMO uplink transmission in accordance with a UE capability constraint. This may ensure that the SRS resources assignment and/or scheduled multi-layer MIMO uplink transmission is consistent with the UE's beamforming capabilities.

    Uplink signal transmit power control
    9.
    发明授权
    Uplink signal transmit power control 有权

    公开(公告)号：US10555263B2

    公开(公告)日：2020-02-04

    申请号：US15821319

    申请日：2017-11-22

    Applicant: Futurewei Technologies, Inc.

    Inventor： Pengfei Xia ,  Bin Liu ,  Richard Stirling-Gallacher

    IPC: H04B5/00 ,  H04W52/14 ,  H04W52/32 ,  H04W52/36 ,  H04W52/54 ,  H04B7/06

    Abstract: A method for controlling an uplink signal transmit power at the user equipment and a UE configured to perform such a method are disclosed. In an embodiment, the method includes receiving a downlink reference signal transmit power associated with a first resource indicator, a downlink reference signal transmit beamforming gain associated with a second resource indicator, an uplink signal receive beamforming gain associated with a third resource indicator, and an uplink signal target receive power associated with a fourth resource indicator and transmitting an uplink signal associated with a fifth resource indicator to a transmission point with a transmit power calculated based on the combination, wherein the downlink reference signal transmit power associated with the first resource indicator and the downlink reference signal transmit beamforming gain associated with the second resource indicator are signaled together as a single metric associated with a sixth resource indicator.

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