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    Phase tracking reference signal (PTRS) for random access
    25.
    发明授权
    Phase tracking reference signal (PTRS) for random access 有权

    公开(公告)号：US12232178B2

    公开(公告)日：2025-02-18

    申请号：US17654715

    申请日：2022-03-14

    Applicant: QUALCOMM Incorporated

    Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Junyi Li

    IPC: H04W74/0833 ,  H04L5/00

    Abstract: This disclosure provides systems, methods, and apparatuses for a wireless node to receive a phase tracking reference signal (PTRS) transmitted inside a downlink random access channel (RACH) message. The wireless node may receive a downlink RACH message that includes a PTRS based on an indication received in a downlink RACH message or a physical downlink control channel (PDCCH) associated with a downlink RACH message. In some aspects, the wireless node may utilize the PTRS for phase error correction or frequency error correction (such as frequency error caused by Doppler effects). This disclosure also provides systems, methods, and apparatuses for a component of a base station to provide an indication that a PTRS is included in a downlink RACH message. The indication may be provided in a downlink RACH message or a PDCCH associated with a downlink RACH message.

    Machine learning for beam predictions with confidence indications
    26.
    发明授权
    Machine learning for beam predictions with confidence indications 有权

    公开(公告)号：US12231183B2

    公开(公告)日：2025-02-18

    申请号：US17661543

    申请日：2022-04-29

    Applicant: QUALCOMM Incorporated

    Inventor： Tianyang Bai ,  Hua Wang ,  Taesang Yoo ,  Junyi Li

    IPC: H04B17/373 ,  G06N3/08 ,  H04B17/318 ,  H04W24/08

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a signal. The UE may determine, based at least in part on a machine learning component, a predicted communication metric and a confidence indication, the machine learning component comprising a machine learning model, and wherein determining the predicted communication metric and the confidence indication comprises: receiving, by the machine learning model, an input that comprises an input metric and an error measurement corresponding to the input metric; and providing, by the machine learning model, and based at least in part on a machine learning function and the input, the predicted communication metric and the confidence indication. The UE may perform a wireless communication task based at least in part on the predicted communication metric and the confidence indication. Numerous other aspects are described.

    INITIAL PHYSICAL RANDOM ACCESS CHANNEL (PRACH) POWER CONTROL USING MULTIPLE PRACH SIGNALS
    27.
    发明申请
    INITIAL PHYSICAL RANDOM ACCESS CHANNEL (PRACH) POWER CONTROL USING MULTIPLE PRACH SIGNALS 有权

    公开(公告)号：US20250056431A1

    公开(公告)日：2025-02-13

    申请号：US18366457

    申请日：2023-08-07

    Applicant: QUALCOMM Incorporated

    Inventor： Jing Sun ,  Xiaoxia Zhang ,  Jing Jiang ,  Junyi Li ,  Raviteja Patchava ,  Vamsi Krishna Amalladinne

    IPC: H04W52/50 ,  H04W52/24 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

    Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. Various aspects relate to initial physical random access channel (PRACH) power control using multiple PRACH signals, and more particularly to supporting one or more initialization and power control operations between a user equipment (UE) and a network entity prior to an association process. The initial PRACH power control may include the UE transmitting, to the network entity, a first set of PRACH signals at different respective power levels. The network entity may transmit a response message indicating a single set of PRACH signals detected by the network entity, and the UE may detect whether a first PRACH signal, of the first set of PRACH signals, is included in the single set of PRACH signals to select a power level associated with the first PRACH signal for transmitting association messages.

    Signaling-overhead reduction with resource grouping
    28.
    发明授权
    Signaling-overhead reduction with resource grouping 有权

    公开(公告)号：US12213121B2

    公开(公告)日：2025-01-28

    申请号：US16801672

    申请日：2020-02-26

    Applicant: QUALCOMM Incorporated

    Inventor： Kiran Venugopal ,  Tao Luo ,  Tianyang Bai ,  Jung Ho Ryu ,  Yan Zhou ,  Junyi Li

    IPC: H04W72/04 ,  H04W16/28 ,  H04W28/06 ,  H04W72/044 ,  H04W72/23

    Abstract: A configuration for configuring and updating the spatial relationship of multiple physical uplink control channel (PUCCH) resources in a single message, thereby reducing signaling overhead. A user equipment (UE) constructs a message associated with at least one of a plurality of component carriers (CCs) or a plurality of bandwidth parts (BWPs) indicating a same spatial relation for the at least one of the plurality of CCs or the plurality of BWPs. The UE transmits the message to a base station. The base station transmits a message to the UE configuring multiple spatial parameters for the at least one of the plurality of CCs, the plurality of BWPs, or a plurality of uplink/downlink resources.

    Spectrum management for crest factor reduction distortion
    30.
    发明授权
    Spectrum management for crest factor reduction distortion 有权

    公开(公告)号：US12212441B2

    公开(公告)日：2025-01-28

    申请号：US18158944

    申请日：2023-01-24

    Applicant: QUALCOMM Incorporated

    Inventor： Igor Gutman ,  Tao Luo ,  Ariel Yaakov Sagi ,  Konstantinos Dimou ,  Junyi Li ,  Jianghong Luo

    IPC: H04L23/02 ,  H04L5/00 ,  H04L25/03

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may apply a crest factor reduction (CFR) to an input signal to generate an output signal, the applying the CFR to the input signal including applying a shaping filter that distributes a first portion of CFR noise within a transmission frequency band of the output signal and a second portion of the CFR noise in at least one air interface resource that is outside of the transmission frequency band of the output signal. The network node may transmit the output signal. Numerous other aspects are described.

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