Measurement Method in Carrier Aggregation and Asynchronous Dual Connectivity

    公开(公告)号:US20200235872A1

    公开(公告)日:2020-07-23

    申请号:US16716245

    申请日:2019-12-16

    Applicant: Apple Inc.

    Inventor: Yang Tang Rui Huang

    Abstract: An apparatus of a base station, comprising: a controller to configure a first measurement gap pattern with a first measurement gap repetition period (MGRP) for a first receive (Rx) chain of a user equipment (UE); and configure a second measurement gap pattern with a second measurement gap repetition period (MGRP) for a second receive (Rx) chain of the UE, wherein the first MGRP is different from the second MGRP. The apparatus may configure the measurement gap pattern to support carrier aggregation and/or dual connectivity.

    Methods and systems for radio link monitoring for high speed scenario

    公开(公告)号:US12225393B2

    公开(公告)日:2025-02-11

    申请号:US17431286

    申请日:2020-02-21

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for radio link monitoring for high speed user equipment (UE). For example, some embodiments are directed to the UE including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor a downlink associated with a cell using a reference signal and estimate a downlink radio link quality associated with the downlink. The processor circuitry can further be configured to compare the estimated downlink radio link quality with a threshold. The processor circuitry can further be configured to trigger an out-of-sync operation in response to the downlink radio link quality being worse than the threshold. The threshold can include a value less than 10%.

    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.

    Techniques for NR cell/beam identification

    公开(公告)号:US11483881B2

    公开(公告)日:2022-10-25

    申请号:US17154206

    申请日:2021-01-21

    Applicant: Apple Inc.

    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for cell identification (ID) and beam ID detections in new radio (NR). The detections comprise NR primary synchronization signal (PSS)/secondary synchronization signal (SSS) detection, PBCH DMRS detection, SS reference signal received power (RSRP) measurement, and slot/SS burst boundary timing acquiring. Various embodiments describe how to detect a cell ID and a beam ID in millimeter wave (mmWave) operation. Other embodiments describe further details regarding how to detect NR cell and beam ID during intra-frequency measurements.

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