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    TIMING SYNCHRONIZATION FOR NON-TERRESTRIAL NETWORK COMMUNICATIONS
    2.
    发明公开
    TIMING SYNCHRONIZATION FOR NON-TERRESTRIAL NETWORK COMMUNICATIONS 审中-公开

    公开(公告)号：US20240056170A1

    公开(公告)日：2024-02-15

    申请号：US17884458

    申请日：2022-08-09

    Applicant: QUALCOMM Incorporated

    Inventor： Bharat Shrestha ,  Xiao Feng Wang ,  Harikumar Krishnamurthy ,  Liangping Ma ,  Changhwan Park ,  Umesh Phuyal ,  Ayan Sengupta ,  Alberto Rico Alvarino

    IPC: H04B7/185 ,  H04W56/00

    CPC classification number: H04B7/18513 ,  H04W56/0005

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message from a first non-terrestrial network cell indicating cell synchronization information for a second non-terrestrial network cell. In some examples, the cell synchronization information may indicate whether the first non-terrestrial network cell and the second non-terrestrial network cell are synchronized at a reference point. Additionally, or alternatively, the cell synchronization information may indicate a timing offset value between a first uplink time synchronization reference point of the first non-terrestrial network cell and a second uplink time synchronization reference point of the second non-terrestrial network cell. The UE may calculate a timing associated with signaling from the second non-terrestrial network cell based at least in part on the cell synchronization information. The UE may receive one or more signals from the second non-terrestrial network cell based at least in part on the calculated timing.

    MULTIPOINT TRANSMISSION FOR NON-TERRESTRIAL NETWORKS
    3.
    发明申请
    MULTIPOINT TRANSMISSION FOR NON-TERRESTRIAL NETWORKS 有权

    公开(公告)号：US20240372609A1

    公开(公告)日：2024-11-07

    申请号：US18312572

    申请日：2023-05-04

    Applicant: QUALCOMM Incorporated

    Inventor： Alberto RICO ALVARINO ,  Le LIU ,  Xiao Feng WANG ,  Peter GAAL ,  Mostafa KHOSHNEVISAN ,  Chiranjib SAHA ,  Harikumar Krishnamurthy ,  Ayan SENGUPTA ,  Umesh PHUYAL ,  Bharat SHRESTHA

    IPC: H04B7/185 ,  H04L5/00 ,  H04W56/00

    Abstract: This disclosure provides systems, methods and apparatus for enabling multi-TRP transmission in non terrestrial networks. In one aspect, a user equipment receives a first reference signal from a first satellite transmission reception point (TRP) at a first timing and receives a second reference signal from a second satellite TRP at a second timing. The first timing is synchronized with the second timing at a first geographic location. The user equipment receives a third reference signal from the first satellite TRP at a third timing and receives a fourth reference signal from the second satellite TRP at a fourth timing. The third timing and the fourth timing are synchronized at the user equipment. The user equipment receives an indication of a timing offset of the fourth reference signal with respect to the second reference signal and uses the third and fourth reference signals as a quasi colocation (QCL) source.

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