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    Beam recovery in a multiple bandwidth part environment
    51.
    发明专利
    Beam recovery in a multiple bandwidth part environment 未知

    公开(公告)号：AU2018402028A1

    公开(公告)日：2020-06-18

    申请号：AU2018402028

    申请日：2018-01-09

    Applicant: QUALCOMM INC

    Inventor： CHENG PENG ,  WEI CHAO ,  ZHANG YU ,  XU HAO ,  HE LINHAI

    IPC: H04W16/28

    Abstract: Methods, systems, and devices for wireless communications in a multiple bandwidth part environment are described. In response to a serving beam failure in an active bandwidth part, the UE may determine a level of support provided by the active bandwidth part for a random access procedure, and may determine a contingency (e.g. fallback) bandwidth part that supports the random access procedure. In some cases, the UE may identify the contingency bandwidth as an initial bandwidth part used by the UE for a prior random access procedure. In some cases, the base station may send to the UE, an explicit indication of the contingency bandwidth part. In some cases, the UE may identify the contingency bandwidth part based on a reference signal. Upon determining the contingency bandwidth part, the UE may perform the random access procedure using the contingency bandwidth part.

    TRANSMISSION RANK AND PRECODER SIGNALING IN UPLINK NON-CODEBOOK BASED TRANSMISSION
    52.
    发明专利
    TRANSMISSION RANK AND PRECODER SIGNALING IN UPLINK NON-CODEBOOK BASED TRANSMISSION 未知

    公开(公告)号：SG11202000164XA

    公开(公告)日：2020-02-27

    申请号：SG11202000164X

    申请日：2018-08-10

    Applicant: QUALCOMM INC

    Inventor： WU LIANGMING ,  ZHANG YU ,  HAO CHENXI ,  XU HAO ,  CHEN WANSHI

    IPC: H04W72/04

    Abstract: Techniques and apparatus for configuring transmission rank and/or precoder(s) to support uplink non-codebook based transmission are provided. One technique includes receiving sounding reference signal (SRS) resource(s) from a user equipment (UE), where each SRS resource is associated with one or more precoded ports. At least one of a transmission rank or a set of precoders is determined based on the SRS resource(s). An indication of at least one of the SRS resource(s) is signaled to the UE. The UE uses the indication of the at least one of the SRS resource(s) to send an uplink transmission.

    Hybrid class B FD-MIMO
    55.
    发明专利
    Hybrid class B FD-MIMO 未知

    公开(公告)号：AU2017262264A1

    公开(公告)日：2018-10-25

    申请号：AU2017262264

    申请日：2017-05-10

    Applicant: QUALCOMM INC

    Inventor： WEI CHAO ,  ZHANG YU ,  CHEN BO ,  HOU JILEI

    IPC: H04W72/02 ,  H04W72/04

    Abstract: A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.

    Elevation PMI reporting on PUCCH
    57.
    发明专利
    Elevation PMI reporting on PUCCH 未知

    公开(公告)号：AU2015345739A1

    公开(公告)日：2017-04-13

    申请号：AU2015345739

    申请日：2015-09-30

    Applicant: QUALCOMM INC

    Inventor： WEI CHAO ,  ZHANG YU

    IPC: H04B7/04

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives RSs from a base station. The UE determines, based on the RSs, a second CSI indicator indicating a first precoding configuration of the base station optimized to at least one of improve signal power or reduce interference in an elevation dimension. The UE determines, based on the RSs, a second CSI indicator indicating a second precoding configuration of the base station optimized to at least one of improve the signal power or reduce interference in an azimuth dimension. The UE transmits, to the base station, a first CSI report including at least the first CSI indicator.

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