Transmission of nominal repetitions of data over an unlicensed spectrum

    公开(公告)号:US12256369B2

    公开(公告)日:2025-03-18

    申请号:US17441636

    申请日:2020-08-05

    Applicant: Apple Inc.

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing transmission of nominal repetitions of data over an unlicensed spectrum. One or more nominal repetitions of data are to be transmitted by a user equipment (UE) over an unlicensed spectrum used for both uplink and downlink transmissions. The one or more nominal repetitions of the data are segmented into multiple actual repetitions of portions of the data. The UE identifies an orphan symbol in an actual repetition of the multiple actual repetitions of portions of the data, and determines a filler symbol to replace the orphan symbol in the actual repetition. In addition, the UE transmits the multiple actual repetitions including the filler symbol in replacement of the orphan symbol to a base station over the unlicensed spectrum.

    System and method for fast beam tracking in a high frequency wireless communication system

    公开(公告)号:US12250668B2

    公开(公告)日:2025-03-11

    申请号:US17442519

    申请日:2020-10-16

    Applicant: Apple Inc.

    Abstract: Methods and apparatuses are disclosed for performing fast beam switching in a high-frequency wireless communication environment. Higher frequencies reduce transmission wavelength, which allows for an increased number of antennas and an increased number of beams. Therefore, beams become narrower and are more prone to failure. The UE must be capable of quickly identifying the beam failure and switching to a new beam. Therefore, the UE is capable of receiving multiple beams from the base station and configures both for testing and immediate use. In some cases, the UE can receive multiple beams for testing and assumes a default beam while feeding back to the base station a preferred beam. To support the larger number of available beams, MAC-CE and DCI are modified to identify this increased number of states. Alternatively, two MAC-CEs are sent, each containing a different group of states, and the DCI identifies both the group and the selected state.

    Downlink (DL) and uplink (UL) scheduling for transmission above 52.6 GHz

    公开(公告)号:US12245209B2

    公开(公告)日:2025-03-04

    申请号:US17439680

    申请日:2020-10-16

    Applicant: Apple Inc.

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing downlink and uplink scheduling in communication above 52.6 GHz. For example, some aspects of this disclosure relate to a base station. The base station includes a transceiver configured to communicate over a wireless network with a user equipment (UE) and a processor communicatively coupled to the transceiver. The processor determines that the communication between the base station and the UE is in a frequency range above 52.6 GHz. In response to the determination, the processor disables a frequency main resource assignment (FDRA), modifies a Resource Block Group (RBG) size, or modifies a Resource Indication Value (RIV) determination. The processor generates a Downlink Channel Indicator (DCI) based at least on one or more of the disabled FDRA, the modified RBG size, or the modified RIV determination. The processor transmits, using the transceiver, the DCI to the UE.

    Cross-division duplex signaling
    267.
    发明授权

    公开(公告)号:US12244544B2

    公开(公告)日:2025-03-04

    申请号:US17787691

    申请日:2021-09-03

    Applicant: APPLE INC.

    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for signaling cross-division duplex configurations. One of the methods includes identifying, by a first device and for a first link with a second device, a switch in a first bandwidth part to a second bandwidth part for the first link, the first link associated with a second link having a third bandwidth part; determining, by the first device, whether a bandwidth band between the second bandwidth part and the third bandwidth part satisfies a threshold guard band; and selectively determining to maintain the third bandwidth part for the second link or to switch the third bandwidth part to a fourth bandwidth part for the second link using a result of the determination whether the bandwidth band between the second bandwidth part and the third bandwidth part satisfies the threshold guard band.

    CSI report enhancement for high-speed train scenarios

    公开(公告)号:US12224829B2

    公开(公告)日:2025-02-11

    申请号:US17593360

    申请日:2021-08-05

    Applicant: APPLE INC.

    Abstract: Configuring channel state information (CSI) reporting at a user equipment (UE) in a high speed train scenario may include, in response to being within range of a first transmission and reception point (TRP) of a plurality of TRPs associated with an HST, decoding a CSI reporting configuration communication received from a network. The CSI reporting configuration indicating that CSI reporting is to be performed in an HST scenario and being configured for the HST scenario. Measurements based on the decoded CSI reporting configuration received from the network may be performed. A CSI report communication associated with the HST scenario based on the measurements may be encoded for transmission to the network.

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