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    BEAM SELECTION PROCEDURES FOR MULTI-STREAM ENVIRONMENTS
    101.
    发明申请
    BEAM SELECTION PROCEDURES FOR MULTI-STREAM ENVIRONMENTS 审中-公开

    公开(公告)号：US20200382194A1

    公开(公告)日：2020-12-03

    申请号：US16880914

    申请日：2020-05-21

    Applicant: QUALCOMM Incorporated

    Inventor： Sungwoo Park ,  Arumugam Chendamarai Kannan ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Mostafa Khoshnevisan

    IPC: H04B7/06 ,  H04W72/08 ,  H04W72/02 ,  H04W72/04

    Abstract: Techniques are described for selecting transmit beam sets in multi-stream environments as part of beam selection procedures. The selection procedures and the reporting procedures of the beam selection procedures may include reporting information about potential sources of interference for the selected transmit beams. A base station may transmit reference signals to a user equipment (UE) as part of a beam sweep of directional beams. The UE may measure signal quality parameters associated with the reference signals and may select a plurality of transmit beam set candidates based on the signal quality parameters. The UE may report to the base station information related to inter-beam interference in multi-stream environments. The base station may determine which transmit beams to use to transmit information to the UE based on the report received from the UE that include information about inter-beam interference.

    TECHNIQUES FOR SIGNALING GO-TO-SLEEP FOR MULTIPLE TRANSMISSION/RECEPTION POINTS
    102.
    发明申请
    TECHNIQUES FOR SIGNALING GO-TO-SLEEP FOR MULTIPLE TRANSMISSION/RECEPTION POINTS 审中-公开

    公开(公告)号：US20200296667A1

    公开(公告)日：2020-09-17

    申请号：US16789400

    申请日：2020-02-12

    Applicant: QUALCOMM Incorporated

    Inventor： Sungwoo Park ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan ,  Tao Luo ,  Jing Sun ,  Wooseok Nam

    IPC: H04W52/02 ,  H04W76/28 ,  H04W76/27 ,  H04W72/04

    Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may monitor for transmissions during an on-duration of a discontinuous reception cycle. The UE may receive one or more go-to-sleep indications from one or more transmission/reception points (TRPs), and may discontinue monitoring for transmissions from one or more of the TRPs responsive to the one or more go-to-sleep indications. Each TRP of the two or more TRPs may transmit a separate per-TRP go-to-sleep signal that indicates that the TRP will not transmit during a time period associated the go-to-sleep signal. In other cases, a TRP may transmit a cross-TRP go-to-sleep signal that has go-to-sleep indications for multiple TRPs.

    Monostatic radar with progressive length transmission
    103.
    发明授权
    Monostatic radar with progressive length transmission 有权

    公开(公告)号：US12298381B2

    公开(公告)日：2025-05-13

    申请号：US17364307

    申请日：2021-06-30

    Applicant: QUALCOMM Incorporated

    Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Taesang Yoo ,  Simone Merlin ,  Srinivas Yerramalli ,  John Edward Smee

    IPC: G01S13/56 ,  G01S7/03 ,  G01S7/35 ,  G01S13/02

    Abstract: Monostatic radar with progressive length transmission may be used with half-duplex systems or with full-duplex systems to reduce self-interference. The system transmits a first signal for a first duration and receives a first reflection of the first signal from a first object during a second duration. The system transmits a second signal for a third duration longer than the first duration and receives a second reflection of the second signal from a second object during a fourth duration. The system calculates a position of the first object and the second object based on the first reflection and the second reflection. The first signal, first duration, and second duration are configured to detect reflections from objects within a first distance of the system. The second signal, third duration, and fourth duration are configured to detect reflections from objects between the first distance and a second distance from the system.

    Joint precoding across multiple beams
    104.
    发明授权
    Joint precoding across multiple beams 有权

    公开(公告)号：US12212390B2

    公开(公告)日：2025-01-28

    申请号：US17758488

    申请日：2020-02-14

    Applicant: QUALCOMM Incorporated

    Inventor： Kiran Venugopal ,  Wooseok Nam ,  Chenxi Hao ,  Tao Luo ,  Sungwoo Park ,  Fang Yuan ,  Junyi Li

    IPC: H04B7/06 ,  H04L5/00

    Abstract: One innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication. The method includes determining a configuration of reference signal (RS) resources to be used by a user-equipment (UE) to perform beam measurements, transmitting, to the UE, an indication of the configuration of the RS resources, and receiving, from the UE, a report indicating a plurality of RS resource indicators based on the beam measurements, each of the RS resource indicators being associated with one of the RS resources. In some aspects, the BS selects a subset of the RS resources based on the report from the UE, transmits, to the UE, an indication to provide channel measurement information for the subset of the RS resources, and receives a report including the channel measurement information from the UE. The BS may also perform joint precoding of signals for transmission via the RS resources based on the channel measurement information.

    Frequency pre-compensation for high-speed train single frequency networks
    105.
    发明授权
    Frequency pre-compensation for high-speed train single frequency networks 有权

    公开(公告)号：US12119863B2

    公开(公告)日：2024-10-15

    申请号：US18334446

    申请日：2023-06-14

    Applicant: QUALCOMM Incorporated

    Inventor： Kiran Venugopal ,  Wooseok Nam ,  Sungwoo Park ,  Tianyang Bai ,  Tao Luo ,  Junyi Li

    IPC: H04B1/62 ,  H04L5/00 ,  H04W24/08 ,  H04W72/23

    CPC classification number: H04B1/62 ,  H04L5/0048 ,  H04W24/08 ,  H04W72/23

    Abstract: Wireless communication devices, systems, and methods related to mechanisms for transmitting and receiving reference signals in a high-speed train (HST) single frequency network (SFN). A base station (BS) determines a first frequency pre-compensation value for a reference signal transmitted via a first transmission and reception point (TRP) and a second frequency pre-compensation value for a reference signal via a second TRP. The BS notifies a user equipment (UE) of the first and second pre-compensation values through at least one of the TRPs. The BS applies the first pre-compensation value to the reference signal via the first TRP and the second pre-compensation value to the reference signal via the second TRP. The UE adjusts its tracking loop for the reference signal based on the pre-compensation values, reducing estimation and/or search overhead at the UE.

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