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    BUFFERING TECHNIQUES FOR NON-TERRESTRIAL NETWORKS
    152.
    发明公开
    BUFFERING TECHNIQUES FOR NON-TERRESTRIAL NETWORKS 审中-公开

    公开(公告)号：US20230247477A1

    公开(公告)日：2023-08-03

    申请号：US17590502

    申请日：2022-02-01

    Applicant: QUALCOMM Incorporated

    Inventor： Toru Uchino ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Bharat Shrestha

    IPC: H04W28/02 ,  H04L47/283

    CPC classification number: H04W28/0278 ,  H04L47/283

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to buffer communications with a network node. A buffer size of a buffer used to buffer the communications may be specific to a non-terrestrial network (NTN) via which the UE communicates with the network node. For example, the UE may calculate the buffer size based on a maximum data rate of a connection with the network node via the NTN and a radio link control (RLC) round trip time (RTT). The RLC RTT may be specific to NTNs. The UE may use a buffer having the calculated buffer size to buffer the communications between the UE and the network node over the connection.

    Change of tracking area code for wireless networks
    156.
    发明授权
    Change of tracking area code for wireless networks 有权

    公开(公告)号：US11632735B2

    公开(公告)日：2023-04-18

    申请号：US17222650

    申请日：2021-04-05

    Applicant: QUALCOMM Incorporated

    Inventor： Bharat Shrestha ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Xiao Feng Wang

    IPC: H04W84/06 ,  H04W60/04 ,  H04W68/00 ,  H04W76/11 ,  H04W24/08

    Abstract: Methods, systems, and devices for wireless communications are described. In some non-terrestrial networks, the movement of satellites may result in the movement of cell coverage. A user equipment (UE) may experience changing cell coverage due to the movement of cell coverage, even if the UE is stationary. A UE may be configured to determine a cell is serving two or more earth-fixed tracking areas, determine whether to monitor paging resources of a first earth-fixed tracking area or a second earth-fixed tracking area, and monitor the selected paging resources. In some aspects, the UE may determine that a cell serves two or more earth-fixed tracking areas based on a received control message including multiple tracking area indicators. In some aspects, the UE may determine which paging resources to monitor based on a geographic position of the UE.

    System information parameter update time in non-terrestrial network
    157.
    发明授权
    System information parameter update time in non-terrestrial network 有权

    公开(公告)号：US11632712B2

    公开(公告)日：2023-04-18

    申请号：US17243151

    申请日：2021-04-28

    Applicant: QUALCOMM Incorporated

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

    IPC: H04W48/16 ,  H04W76/28 ,  H04W68/00 ,  H04W72/12

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a reference time for updating one or more system information parameters associated with a non-terrestrial network (NTN) or updating a cell status associated with the NTN. The UE may determine an update timer length for updating the one or more system information parameters associated with the NTN or the cell status associated with the NTN. The UE may acquire, from a current cell or a new cell, a system information block (SIB) to refresh the one or more system information parameters after an expiration time associated with the one or more system information parameters, wherein the expiration time is based at least in part on the reference time and the update timer length. Numerous other aspects are described.

    EPHEMERIS ENHANCEMENTS FOR NON-TERRESTRIAL NETWORK
    158.
    发明申请
    EPHEMERIS ENHANCEMENTS FOR NON-TERRESTRIAL NETWORK 有权

    公开(公告)号：US20230111316A1

    公开(公告)日：2023-04-13

    申请号：US17657906

    申请日：2022-04-04

    Applicant: QUALCOMM Incorporated

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

    IPC: H04B7/185

    Abstract: Certain aspects of the present disclosure provide techniques for enhancing ephemeris for non-terrestrial networks. For example, UEs of different orbit propagation capabilities (e.g., computing orbit propagation models of different accuracy levels) may receive additional ephemeris parameters. In one aspect, a network entity may determine at least one additional set of ephemeris parameters that includes different ephemeris parameters than one or more basic sets of ephemeris parameters associated with a satellite that provides a coverage for the network entity. The network entity may transmit broadcast signaling indicating the at least one additional set of ephemeris parameters. The UE may receive and use the at least one additional set of ephemeris parameters in an orbit propagation model to compute a state of motion of the satellite.

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