Scheduling of Control Signaling on a Primary Cell by a Secondary Cell

    公开(公告)号:US20230039290A1

    公开(公告)日:2023-02-09

    申请号:US17818512

    申请日:2022-08-09

    Applicant: Apple Inc.

    Abstract: A base station of a network configures a first search space having a first search space identification (SearchSpaceId) in a special cell (SpCell) and a second search space having a second search space identification (SearchSpaceId) in a secondary cell (SCell) for monitoring control signaling that schedules operations on the SpCell. The base station transmits a radio resource control (RRC) configuration to a user equipment (UE) including the first SSID and the second SSID, wherein the RRC configuration configures the UE to monitor the first search space having the first SSID for scheduling of a first type of control signaling and the second search space having the second SSID for scheduling of a second type of control signaling.

    TECHNIQUES OF BEAMFORMING IN REFERENCE SIGNAL (RS) TRANSMISSIONS

    公开(公告)号:US20220312477A1

    公开(公告)日:2022-09-29

    申请号:US17593538

    申请日:2020-10-15

    Applicant: APPLE INC.

    Abstract: Techniques of beamforming in reference signal (RS) transmissions, applicable to frequency ranges including frequencies between 52.6 GHz and 71 GHz, are described. Such techniques may include determining a communication channel is unoccupied for an initial duration, determining a number of communication slots of the communication channel to defer for transmission, and counting one or more communication slots of the communication channel that are not in use. The techniques may include determining the number of counted one or more communication slots is not equal to the determined number of communication slots of the communication channel to defer, and transmitting one or more data units based on the determination that the number of the counted one or more communication slots is not equal to the determined number of communication slots of the communication channel to defer.

    Handling Physical Downlink Shared Channel Multi-TRP Transmissions

    公开(公告)号:US20220312449A1

    公开(公告)日:2022-09-29

    申请号:US17593488

    申请日:2020-05-15

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) is configured to handle physical downlink shared channel (PDSCH) transmissions during multi-transmission/reception point (TRP) operation. The UE receives a physical downlink control channel (PDCCH) transmission configured with downlink control information (DCI) in a single-DCI, multi-transmission/reception point (TRP) operation, wherein the DCI schedules reception of a physical downlink shared channel (PDSCH) transmission, determines whether or not a TCI field is configured in the DCI, when the TCI field is not configured in the DCI, determining a default beam based on a control resource set (CORESET) with the lowest ID in the PDCCH and when the TCI field is configured in the DCI, determining whether the TCI field indicates a TCI codepoint includes two TCI states.

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