Beam failure recovery operation
    91.
    发明授权

    公开(公告)号:US11515924B2

    公开(公告)日:2022-11-29

    申请号:US17011629

    申请日:2020-09-03

    Applicant: Apple Inc.

    Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to detect a beam failure event. The second circuitry may be operable to generate a beam failure recovery request for transmission to the gNB, in response to the beam failure event. The third circuitry my be operable to monitor for Physical Downlink Control Channel (PDCCH) in a search space configured by the gNB, subsequent to a transmission of the beam failure recovery request.

    A METHOD TO DETERMINE SPATIAL QUASI CO-LOCATION (QCL) ASSUMPTION FOR CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS) IN NEW RADIO (NR)

    公开(公告)号:US20210400700A1

    公开(公告)日:2021-12-23

    申请号:US17287794

    申请日:2019-10-31

    Applicant: Apple Inc.

    Abstract: An apparatus configured to be employed in a user equipment (UE) associated with a new radio (NR) communication system is disclosed. The apparatus comprises one or more processors configured to process a physical downlink shared channel (PDSCH) scheduling signal, received from a gNodeB associated therewith, wherein the PDSCH scheduling signal is configured to schedule a transmission of PDSCH. In some embodiments, the PDSCH scheduling signal comprises a transmission configuration indicator (TCI) state indicative of a channel state information reference signal (CSI-RS) resource that is triggered aperiodically. In some embodiments, the apparatus is further configured to determine a receive (Rx) beam to be utilized for the reception of the scheduled PDSCH transmission, that forms a PDSCH Rx beam, based on the indicated CSI-RS resource.

    RANDOM DMRS SEQUENCE GENERATION IN NR UPLINK

    公开(公告)号:US20210377997A1

    公开(公告)日:2021-12-02

    申请号:US17287081

    申请日:2019-10-31

    Applicant: Apple Inc.

    Abstract: A service device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component or network management component) can process or generate a Downlink Control Information (DCI) that schedules a Physical Uplink Shared Channel (PUSCH) transmission in a PUSCH. The PUSCH transmission can be generated based on a Demodulation Reference Signal (DMRS) according to a Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in uplink. A sequence of the DMRS can be generated based on a Gold sequence and a Pi/2 Binary Phase-Shift Keying (BPSK) modulation.

    System and method for beam management procedure configuration

    公开(公告)号:US11159217B2

    公开(公告)日:2021-10-26

    申请号:US16498805

    申请日:2018-04-02

    Applicant: Apple Inc.

    Abstract: Systems and methods of beam reporting for multiple DL processes are described. A UE receives a beam management processes configuration that provides information about beam management reference signals for beam management procedures. The UE transmits a UE capability report that indicates beam management capabilities of the UE and, later, an indication of whether the UE intends to engage in beam refinement. The UE measures the beam management reference signals and receives a beam reporting message that indicates at least one of the beam management procedures to report. In response, the UE transmits the beam report. The beam report contains beam management reference signal measurements of the beam management procedures indicated by the beam reporting message.

    Beam indication information transmission

    公开(公告)号:US11102661B2

    公开(公告)日:2021-08-24

    申请号:US16408319

    申请日:2019-05-09

    Applicant: Apple Inc.

    Abstract: Technology for user equipment (UE) operable to decode beam indication related information received from a New Radio (NR) base station in a physical downlink shared channel (PDSCH) is disclosed. The UE can decode a transmission configuration indication (TCI) received in a downlink control information (DCI) from the NR base station on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC). The UE can decode a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of beam indication related information in a physical downlink shared channel (PDSCH). The UE can decode the beam indication related information received from the NR base station in the PDSCH on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission.

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