Techniques for Node Directed Uplink (UL) Cancellation and Channel Access in Unlicensed Bands

    公开(公告)号:US20230156771A1

    公开(公告)日:2023-05-18

    申请号:US17593750

    申请日:2020-08-05

    Applicant: Apple Inc.

    CPC classification number: H04W72/56 H04W74/0808 H04W16/14 H04W72/1268

    Abstract: A technique for wireless communications in a wireless system including: receiving, from a first user device, cancellation capability information, receiving, from a second user device, unlicensed frequency transmission capability information, receiving, from the first user device, an uplink transmission over an unlicensed frequency band, determining, a need for a higher priority uplink transmission by the second user device, scheduling an uplink cancellation time for the first user device based on the cancellation capability information and unlicensed frequency transmission capability information, scheduling an uplink transmission time for the second user device based on the cancellation capability information and unlicensed frequency transmission capability information, transmitting an uplink cancellation request to the first user device based on the scheduled uplink cancellation time, and transmitting an uplink transmission time for the higher priority uplink transmission to the second user device based on the scheduled uplink transmission time.

    UE Uplink Panel Selection Framework
    197.
    发明公开

    公开(公告)号:US20230155660A1

    公开(公告)日:2023-05-18

    申请号:US17916884

    申请日:2020-04-08

    Applicant: Apple Inc.

    CPC classification number: H04B7/0695 H04B7/0691

    Abstract: Apparatuses, systems, and methods for user equipment device (UE) uplink antenna panel selection. The UE may determine, based on at least one condition, to perform a beam switch from a current beam being used for communications with a base station. The UE may transmit, to the base station, an indication of an antenna panel status that may include an indication of a latency associated with the beam switch. The UE may receive, from the base station, an indication to switch to a target beam and to perform the switch, based on the indication, to the target beam. The indication of the antenna panel status may include a beam switching latency level for each beam in a beam report, a beam switch request that may indicate the target beam, and/or a beam switch request that may indicate that an antenna panel switch is to be applied by the UE.

    TECHNOLOGIES FOR NR COVERAGE ENHANCEMENT

    公开(公告)号:US20230058265A1

    公开(公告)日:2023-02-23

    申请号:US17598217

    申请日:2020-05-14

    Applicant: Apple Inc.

    Abstract: Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.

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