Method and apparatus for new radio unlicensed (NR-U) radio link monitoring preliminary class

    公开(公告)号:US12133101B2

    公开(公告)日:2024-10-29

    申请号:US17599666

    申请日:2020-03-30

    Applicant: Apple Inc.

    CPC classification number: H04W24/08 H04L5/0048 H04W24/10 H04W74/0808

    Abstract: An approach is described for a user equipment (UE), wherein the UE includes radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry receives a reference signal from a source device via a radio link, wherein the reference signal is one of the synchronization signal block (SSB) signal or channel state information reference signal (CSI-RS). The processor circuitry measures a quality of the reference signal, and measures an evaluation time of the reference signal. The processor circuitry determines a first indicator of the radio link based on the quality of the reference signal, and determine a second indicator of the radio link based on the evaluation time of the reference signal. The processor circuitry then determines a status of a connection of the radio link based on the first indicator and the second indicator of the radio link, and generate a message based the status of the connection. The radio front end circuitry then transmits the message to the source device.

    Enhanced autonomous uplink timing adjustment

    公开(公告)号:US12127145B2

    公开(公告)日:2024-10-22

    申请号:US17436474

    申请日:2020-03-06

    Applicant: Apple Inc.

    CPC classification number: H04W56/0045 H04W4/027

    Abstract: A method for enhanced autonomous uplink timing adjustment includes determining that a user equipment (UE) is traveling above a predetermined velocity. In response to the determination that the UE is traveling above the predetermined velocity, a maximum aggregate adjustment rate to an uplink timing for the UE and a maximum amount of a magnitude of a timing change to the uplink timing for the UE are determined. The uplink timing for the UE is adjusted based on the maximum aggregate adjustment rate and the maximum amount of the magnitude of the timing change.

    On-demand reference signals for location related measurements

    公开(公告)号:US12120057B2

    公开(公告)日:2024-10-15

    申请号:US17669915

    申请日:2022-02-11

    Applicant: Apple Inc.

    CPC classification number: H04L5/0051 H04L5/0042 H04W64/006

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing techniques for providing a user equipment (UE) with on-demand reference signals for location related measurements of the UE. The UE can receive location assistance data from a network server, where the location assistance data includes information about a plurality of downlink reference signals that can be used to perform location related measurements by the UE. The UE can send a request to a base station for a reference signal. The reference signal is selected from the plurality of downlink reference signals of the location assistance data. Furthermore, the UE can receive the reference signal from the base station, and perform a location related measurement based on the received reference signal.

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