CONTINUOUS COMMUNICATION SERVICE FOR MOBILE NON-TERRESTRIAL NETWORKS

    公开(公告)号:US20240334321A1

    公开(公告)日:2024-10-03

    申请号:US18588969

    申请日:2024-02-27

    Applicant: Apple Inc.

    CPC classification number: H04W48/20 H04W48/16 H04W64/00

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for apparatuses and methods for providing continuous communication services for a user equipment (UE) connected to a non-terrestrial network (NTN) and/or one or more satellites providing cellular coverage. The UE may receive a list of neighbor cells from a serving cell, which may be a satellite moving relative to the Earth and having a moving coverage area. After receiving the list of neighbor cells, the UE may sort the list to prioritize the neighbor cells. This sorting may be based on a calculated distance between the UE and each of the neighbor cells. The UE may sequentially perform a synchronization and measurement process with each of the neighbor cells or a subset of the neighbor cells based on the prioritization order. The UE may then establish communications with a target cell from the prioritized list to maintain continuity.

    Secondary cell activation mechanism in the new radio unlicensed spectrum

    公开(公告)号:US12035364B2

    公开(公告)日:2024-07-09

    申请号:US17437784

    申请日:2021-03-31

    Applicant: Apple Inc.

    CPC classification number: H04W74/0808

    Abstract: An apparatus may receive a media access control (MAC) control element (CE) from a base station (BS) indicating a secondary cell (SCell) to be activated in an unlicensed band. The apparatus may initiate a timer with an end value in response to receiving the MAC CE and may further adjust a radio-frequency (RF) chain from a first state to a second state corresponding to the SCell to be activated. The apparatus may determine, based on measurements of one or more synchronization signal blocks (SSBs) transmitted from the BS indicating one or more listen before talk (LBT) failures corresponding to the SCell, one or more failed SSB transmissions corresponding to the SCell. Accordingly, the apparatus may readjust, in response to expiry of the timer, the RF chain from the second state to the first state and receive one or more additional SSBs in the first state.

    5G new radio (NR) network controlled small gap (NCSG)

    公开(公告)号:US11968574B2

    公开(公告)日:2024-04-23

    申请号:US17593519

    申请日:2021-01-14

    Applicant: APPLE INC.

    CPC classification number: H04W36/0088 H04W8/22

    Abstract: A UE for a 5G system is to perform a measurement during a network controlled small gap (NCSG). The NCSG includes a first visible interruption length (VIL1), a measurement length (ML), a second visible interruption length (VIL2), and a visible interruption repetition period (VIRP). A UE capability indicates a length of one or both the VIL1 and the VIL2. NCSG pattern information provides the NCSG for the UE, in which the VIL1 and the VIL2 indicate when the UE is not expected to transmit and receive data on a serving carrier, the ML indicates when the UE is expected to transmit and receive data on the serving carrier, and the VIRP indicates a period in which to repeat the NCSG.

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