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    MULTIPLE SUPPLEMENTAL UPLINK (SUL) CARRIERS
    3.
    发明公开
    MULTIPLE SUPPLEMENTAL UPLINK (SUL) CARRIERS 审中-公开

    公开(公告)号：US20230276410A1

    公开(公告)日：2023-08-31

    申请号：US18004396

    申请日：2020-08-27

    Applicant: QUALCOMM Incorporated

    Inventor： Bo Chen ,  Wentao Zhang ,  Mingkai Nan

    IPC: H04W72/02 ,  H04L5/00 ,  H04W72/0453

    CPC classification number: H04W72/02 ,  H04L5/0094 ,  H04W72/0453

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support use of a supplemental uplink (SUL) carrier. In a first aspect, a user equipment (UE) is configured to receive, from a base station, a carrier set configuration indicating multiple uplink (UL) carriers. The multiple UL carriers include multiple SUL carriers and a non-SUL carrier. The UE is further configured to select one or more carriers of the multiple UL carriers, and transmit a channel on each carrier of the one or more carriers. Other aspects and features are also claimed and described.

    Partial-bandwidth feedback for beam combination codebook
    4.
    发明授权
    Partial-bandwidth feedback for beam combination codebook 有权

    公开(公告)号：US11595097B2

    公开(公告)日：2023-02-28

    申请号：US17429488

    申请日：2020-02-15

    Applicant: Qualcomm Incorporated

    Inventor： Bo Chen ,  Yuwei Ren ,  Liangming Wu ,  Yu Zhang ,  Ruifeng Ma ,  Chenxi Hao ,  Renqiu Wang ,  Hao Xu

    IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L25/02

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.

    Collision handling for component carrier switching
    7.
    发明授权
    Collision handling for component carrier switching 有权

    公开(公告)号：US12192994B2

    公开(公告)日：2025-01-07

    申请号：US17755575

    申请日：2020-02-11

    Applicant: QUALCOMM Incorporated

    Inventor： Peter Gaal ,  Yiqing Cao ,  Chenxi Hao ,  Yi Huang ,  Bo Chen

    IPC: H04W72/1268 ,  H04W72/23 ,  H04W72/566 ,  H04W74/0808

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may group, into a common slot, a first plurality of consecutive uplink slots included in a first component carrier and a second plurality of consecutive uplink slots included in a second component carrier. The UE may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. The UE may transmit on the first component carrier or on the second component carrier in the common slot or determine whether to switch a transmit chain based at least in part on whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. Numerous other aspects are provided.

    Codebook design with differential phase feedback in frequency domain
    8.
    发明授权
    Codebook design with differential phase feedback in frequency domain 有权

    公开(公告)号：US11563472B2

    公开(公告)日：2023-01-24

    申请号：US17427585

    申请日：2020-01-31

    Applicant: Qualcomm Incorporated

    Inventor： Bo Chen ,  Yuwei Ren ,  Renqiu Wang ,  Ruifeng Ma ,  Pavan Kumar Vitthaladevuni ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hao Xu

    IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/04

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit feedback to a base station indicating phase values for sub-bands in a bandwidth part (BWP). The base station may use the phase feedback to perform precoding on a set of beams. To support a reduced payload overhead for the feedback, the UE may implement differential phase feedback. For example, the UE may divide the BWP into a number of sub-band groups and may generate, for each sub-band group of each beam, a first set of bits indicating an absolute phase value for a first sub-band of the sub-band group. The UE may additionally generate a second set of bits indicating differential phase values for the other sub-bands of each sub-band group. The UE may report the first and second sets of bits for the beams to the base station for precoding.

    Carrier aggregation uplink switch gap detection and report
    10.
    发明授权
    Carrier aggregation uplink switch gap detection and report 有权

    公开(公告)号：US12225395B2

    公开(公告)日：2025-02-11

    申请号：US17780175

    申请日：2019-11-29

    Applicant: Qualcomm Incorporated

    Inventor： Yiqing Cao ,  Peter Gaal ,  Chenxi Hao ,  Bo Chen

    IPC: H04W4/00 ,  H04W24/08 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0833

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, an indication of a monitoring window used by the base station to monitor for uplink transmissions from the UE. The UE may receive a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band. The UE may reconfigure, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission. The UE may transmit, based at least in part on the indicated monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.

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