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    DYNAMICALLY CONFIGURABLE ACKNOWLEDGEMENT PROCEDURES
    101.
    发明申请
    DYNAMICALLY CONFIGURABLE ACKNOWLEDGEMENT PROCEDURES 审中-公开

    公开(公告)号：US20200313806A1

    公开(公告)日：2020-10-01

    申请号：US16829990

    申请日：2020-03-25

    Applicant: QUALCOMM Incorporated

    Inventor： Xiao Feng Wang ,  Dan Zhang ,  Huilin Xu ,  Jun Ma ,  Iyab Issam Sakhnini

    IPC: H04L1/18 ,  H04W28/02

    Abstract: Methods, systems, and devices for wireless communications are described. A base station and a user terminal may communicate via a relaying satellite in a non-terrestrial network. The non-terrestrial network may cause communication disruptions in hybrid automatic repeat request (HARQ) processes due to communication delays. Base stations and user terminals communicating via a satellite may implement dynamically configurable HARQ processes to avoid latency in a wireless communications system.

    Physical broadcast channel precoding in high-doppler scenarios
    104.
    发明授权
    Physical broadcast channel precoding in high-doppler scenarios 有权

    公开(公告)号：US12155585B2

    公开(公告)日：2024-11-26

    申请号：US17553254

    申请日：2021-12-16

    Applicant: QUALCOMM Incorporated

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

    IPC: H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W72/044

    Abstract: Methods, systems, and devices for wireless communications are described. For example, a wireless device may support physical broadcast channel (PBCH) precoding in high-doppler scenarios. In some cases, a base station may generate a synchronization signal block (SSB) including synchronization signals and PBCH signaling. The base station may transmit, to a UE, the PBCH signaling in accordance with an orthogonal time frequency space (OTFS) precoding and the synchronization signals in accordance with a non-OTFS precoding. The UE may monitor for the SSB and receive the PBCH signaling in accordance with the OTFS precoding and the synchronization signals in accordance with a non-OTFS precoding. The UE may establish or modify a connection with the base station according to the PBCH signaling.

    Timing improvements for wireless communications systems
    109.
    发明授权
    Timing improvements for wireless communications systems 有权

    公开(公告)号：US11937193B2

    公开(公告)日：2024-03-19

    申请号：US17214538

    申请日：2021-03-26

    Applicant: QUALCOMM Incorporated

    Inventor： Alberto Rico Alvarino ,  Xiao Feng Wang ,  Liangping Ma ,  Ayan Sengupta ,  Jun Ma ,  Huilin Xu ,  Peter Gaal ,  Bharat Shrestha

    IPC: H04W56/00 ,  H04W4/029

    CPC classification number: H04W56/0005 ,  H04W4/029 ,  H04W74/0833

    Abstract: Non-terrestrial networks (NTNs) may establish uplink (UL) and downlink (DL) radio frame timing structures to efficiently account for propagation delay and propagation delay variation associated with communications in the NTN. NTNs may manage (synchronize) radio frame timing structures of base stations (e.g., satellites) and user equipment (UEs) in the NTN. Further, UEs may determine timing advance (TA) values to be applied to UL transmissions based on their respective scheduling offset (e.g., offset in UL and DL radio frame timing structures), as well as based on propagation delay or round trip time (RTT). As such, served UEs may determine UL timing such that UL transmissions from the UEs to a satellite arrives at the satellite in a time synchronized manner. In other cases, a satellite may determine UL timing, based on reception timing, such that various UEs in the NTN may implement uniform UL and DL radio frame timing structures.

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