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    PRIORITY-BASED TIMING ADVANCE (TA) ADJUSTMENT
    11.
    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.

    Random access preamble transmission timing offset
    18.
    发明授权
    Random access preamble transmission timing offset 有权

    公开(公告)号：US11659599B2

    公开(公告)日：2023-05-23

    申请号：US17240708

    申请日：2021-04-26

    Applicant: QUALCOMM Incorporated

    Inventor： Jun Ma ,  Qiang Wu ,  Dan Zhang ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Liangping Ma ,  Peter Gaal ,  Iyab Issam Sakhnini

    IPC: H04J3/00 ,  H04W74/08 ,  H04W72/0446

    CPC classification number: H04W74/0833 ,  H04W72/0446

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may account for propagation delay when initiating a random access (RACH) procedure. For example, the UE may determine transmission timing for a RACH preamble based on an estimated propagation delay, such that the RACH preamble is received at a base station approximately at the beginning of a slot. To support reliable communication of the RACH preamble, the UE may implement a timing offset. In some examples, the base station may configure the UE with the timing offset using system information. Alternatively, the UE may be pre-configured with the timing offset. By determining the transmission timing for the RACH preamble further based on the timing offset, the UE may ensure that the RACH preamble is received at the base station after a slot boundary (e.g., avoiding causing interference to communications in a previous slot).

    ANGULAR RELATIONSHIP DETERMINATION USING FOCAL POINT PERTURBATION
    20.
    发明申请
    ANGULAR RELATIONSHIP DETERMINATION USING FOCAL POINT PERTURBATION 有权

    公开(公告)号：US20230089054A1

    公开(公告)日：2023-03-23

    申请号：US17480598

    申请日：2021-09-21

    Applicant: QUALCOMM Incorporated

    Inventor： Mehmet Izzet GURELLI ,  Qiang Wu ,  Junyi LI ,  Navid ABEDINI ,  Tao LUO ,  Ozge KOYMEN

    IPC: G01S5/02

    Abstract: An angular relationship determination method includes: obtaining, at an apparatus, a first phase difference indication corresponding to a first difference in phase between a first signal wirelessly received by a wireless signaling device from a transmitter and a second signal wirelessly received by the wireless signaling device from the transmitter; and determining, at the apparatus, a first angular relationship between the transmitter and the wireless signaling device based on the first phase difference indication, a first virtual focal point location corresponding to the first signal, and a second virtual focal point location corresponding to the second signal, the second virtual focal point location and the first virtual focal point location being different.

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