Network Configuration of CSI-RS Based Radio Resource Management

    公开(公告)号:US20220303842A1

    公开(公告)日:2022-09-22

    申请号:US17593417

    申请日:2020-08-05

    Applicant: Apple Inc.

    Abstract: A base station of a network operates as a serving cell for a user equipment (UE) and configures the UE to measure channel state information reference signals (CSI-RS) from the target cell. The base station determines whether a target cell of the network transmits Synchronization Signal Block (SSB) information and transmits, to the UE, a measurement configuration message indicating the UE is to measure channel state information reference signals (CSI-RS) from the target cell, wherein the measurement configuration message does not include SSB information for the target cell but further comprises an indication of whether the target cell transmits SSBs.

    METHOD AND APPARATUS FOR NEW RADIO UNLICENSED (NR-U) RADIO LINK MONITORING

    公开(公告)号:US20220201519A1

    公开(公告)日:2022-06-23

    申请号:US17599666

    申请日:2020-03-30

    Applicant: Apple Inc.

    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.

    TRANSMISSION CONFIGURATION INDICATION (TCI) STATE AND BEAM SWITCHING

    公开(公告)号:US20220200675A1

    公开(公告)日:2022-06-23

    申请号:US17599930

    申请日:2020-03-30

    Applicant: Apple Inc.

    Abstract: Techniques for changing a Transmission Configuration Indication (TCI) state by a user equipment (UE) operating in a wireless communications system are provided. The UE receives a first message including a TCI state change command from a network and determines, based on the first message, whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for a new TCI state are known by the UE. Based on the determination, the UE calculates a time delay of the UE to be prepared to receive a reference signal with the new TCI state, generates a second message indicating the time delay of the UE for the new TCI state, and transmits the second message to the network.

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