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    PRIORITY-BASED TIMING ADVANCE (TA) ADJUSTMENT
    21.
    发明公开
    PRIORITY-BASED TIMING ADVANCE (TA) ADJUSTMENT 审中-公开

    公开(公告)号：US20240031963A1

    公开(公告)日：2024-01-25

    申请号：US17869277

    申请日：2022-07-20

    Applicant: QUALCOMM Incorporated

    Inventor： Mohamad Sayed Hassan ,  Lianghai Ji ,  Liangping Ma ,  Jun Ma ,  Qiang Wu ,  Huilin Xu ,  Weimin Duan ,  Mehmet Izzet Gurelli ,  Karthik Anantha Swamy

    IPC: H04W56/00 ,  H04B17/318

    CPC classification number: H04W56/0045 ,  H04B17/318

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message indicating a time domain window (TDW) configuration including a start time of a TDW and a length of the TDW, where the TDW is a duration over which a network entity is scheduled to perform joint channel estimation. The UE may receive a timing advance (TA) command during the TDW indicating a TA value to apply to signaling. The UE may transmit the signaling in accordance with the TA value or independent of the TA value based on the UE prioritizing the TA adjustment or maintaining power consistency and phase continuity for DMRS bundling, respectively. The UE may determine whether to prioritize the TA adjustment or DMRS bundling for the joint channel estimation based on one or more parameters satisfying criteria.

    ENHANCED SECRECY FOR ORTHOGONAL TIME FREQUENCY SPACE (OTFS) WAVEFORMS AT THE PHYSICAL LAYER
    25.
    发明公开
    ENHANCED SECRECY FOR ORTHOGONAL TIME FREQUENCY SPACE (OTFS) WAVEFORMS AT THE PHYSICAL LAYER 审中-公开

    公开(公告)号：US20230403107A1

    公开(公告)日：2023-12-14

    申请号：US17835687

    申请日：2022-06-08

    Applicant: QUALCOMM Incorporated

    Inventor： Morteza Soltani ,  Jun Ma ,  Xiaoxia Zhang ,  Raviteja Patchava

    IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04W72/08

    CPC classification number: H04L5/001 ,  H04L5/0057 ,  H04B7/0626 ,  H04W72/042 ,  H04W72/087

    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device, such as a network entity, may transmit an indication (e.g., via control signaling) to a receiving device, such as a user equipment (UE), indicating that a secure downlink message is scheduled for transmission to the UE. The UE may transmit a sounding reference signal (SRS) to the network entity in response to the control signaling, and the network entity may determine a channel estimate and construct interference based on the channel estimate. The network entity may encode the secure downlink message according to an orthogonal time frequency space (OTFS) precoding scheme and may add the interference to the encoded secure downlink message over a slot duration. The network entity may transmit the encoded secure downlink message, including the added interference, to the UE. The UE may decode the encoded secure downlink message based on the OTFS precoding scheme.

    UPLINK TIMING MANAGEMENT IN COMMUNICATIONS SYSTEMS
    27.
    发明公开
    UPLINK TIMING MANAGEMENT IN COMMUNICATIONS SYSTEMS 审中-公开

    公开(公告)号：US20230262687A1

    公开(公告)日：2023-08-17

    申请号：US17670503

    申请日：2022-02-13

    Applicant: QUALCOMM Incorporated

    Inventor： Mohamad Sayed Hassan ,  Lianghai Ji ,  Jun Ma ,  Liangping Ma

    IPC: H04W72/12 ,  H04W36/06

    CPC classification number: H04W72/1268 ,  H04W36/06 ,  H04W72/1289

    Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may receive, at a source cell served by a network entity, signaling that triggers a handover to a target cell. The UE may also receive a first set of parameters associated with the target cell, the first set of parameters indicating that the target cell is served by the network entity. The UE may then transmit, to the target cell, an uplink communication in accordance with a timing advance value for the target cell. In some examples, the timing advance value for the target cell may be derived using a timing advance value for the source cell based on the target cell being served by the network entity.

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