CSI FEEDBACK FOR MULTI-PDSCH TRANSMISSION
    121.
    发明公开

    公开(公告)号:US20240030986A1

    公开(公告)日:2024-01-25

    申请号:US17442083

    申请日:2021-08-05

    Applicant: Apple Inc.

    CPC classification number: H04B7/0632 H04B7/0626

    Abstract: Some embodiments include an apparatus, method, and computer program product for implementing Channel State information (CSI) feedback for multi-Physical Downlink Shared Channel (PDSCH) transmissions in a wireless communication system. Some embodiments enable a user equipment (UE) to determine Channel Quality Indicators (CQI) and/or Precoding Matrix Indicators (PMI) for multi-PDSCH transmissions that account for effects of a duration of the multi-PDSCH transmission including the maximum interval between the first and last PDSCH transmissions on the CQI and PMI determinations. Some embodiments include a base station that detects a need for a change in a beam direction and adjusts the beam direction accordingly based on the PMI determinations. Some embodiments enable a desired hybrid automatic repeat request (HARQ)-ACK feedback transmission from a single multi-PDSCH transmission. Some embodiments include performing HARQ bundling with an update to the Type 1 HARQ-ACK codebook based on the multi-PDSCH transmission.

    Channel State Information Reporting
    122.
    发明公开

    公开(公告)号:US20240030984A1

    公开(公告)日:2024-01-25

    申请号:US18474879

    申请日:2023-09-26

    Applicant: Apple Inc.

    CPC classification number: H04B7/0626

    Abstract: A user equipment (UE) configured to report Channel State Information (CSI) to a wireless network. The UE transmits a first sounding reference signal (SRS) on an uplink (UL) channel, receives a first channel state information reference signal (CSI-RS) on a downlink (DL) channel, wherein the first CSI-RS includes a first configuration of CSI-RS parameters based on the first SRS, performs first CSI-RS measurements based on the first configuration of CSI-RS parameters, transmits a first CSI report including the first CSI-RS measurements, transmits a second SRS on the UL channel, receives a second CSI-RS on the DL channel, wherein the second CSI-RS includes a second configuration of CSI-RS parameters based on the second SRS, performs second CSI-RS measurements based on the second configuration of CSI-RS parameters and transmits a second CSI report including the second CSI-RS measurements.

    Configured Grant Operations for Multiple PUSCH
    125.
    发明公开

    公开(公告)号:US20230422273A1

    公开(公告)日:2023-12-28

    申请号:US18466451

    申请日:2023-09-13

    Applicant: Apple Inc.

    CPC classification number: H04W72/232 H04L1/1822 H04W72/1273 H04W72/11

    Abstract: A user equipment (UE) is configured to receive from a base station a semi-persistent scheduling (SPS) configuration for physical downlink shared channel (PDSCH) transmissions wherein multiple PDSCHs are transmitted within a single period of the SPS, the SPS configuration including a parameter for a number of hybrid automatic repeat request (HARQ) processes associated with the SPS configuration, receive from the base station a downlink control information (DCI) transmission for activating the SPS configuration, the DCI including a HARQ process ID for one of the PDSCH transmissions in the SPS configuration, wherein the UE determines a maximum number of PDSCH transmissions allowed within the single period based on the parameter for the number of HARQ processes associated with the SPS configuration, validate the DCI to determine time domain resources to use for the PDSCH transmission and receive from the base station the multiple PDSCH transmissions within the single SPS period.

    DETERMINING PROCESSING TIME FOR HIGH FREQUENCY RANGE

    公开(公告)号:US20230362914A1

    公开(公告)日:2023-11-09

    申请号:US17440615

    申请日:2021-01-14

    Applicant: Apple Inc.

    CPC classification number: H04W72/1263 H04W72/51

    Abstract: Some embodiments include an apparatus, method, and computer program product for facilitating processing times in a 5G wireless communications system. When operating at higher frequency subcarrier spacing (SCS), slot times for receiving and/or transmitting data between user equipment (UE) and a 5G Node B (gNB) become shorter. Because of this, some UE may face difficulty in processing physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), and/or physical downlink control channel (PDCCH) data with sufficient speed. To address potential limitations, a flexible minimum processing time may be used to accommodate different UE processing capabilities. The UE may report its processing capabilities to the gNB. The gNB may then schedule communications according to the UE’s processing capabilities. The gNB may consider whether the UE implements a single or multiple processing engines. Further, the gNB may apply single-slot and/or multi-slot scheduling techniques to also prevent timing issues.

    RESOURCE ALLOCATION FOR FEEDBACK CHANNELS IN SIDELINK COMMUNICATIONS

    公开(公告)号:US20230354387A1

    公开(公告)日:2023-11-02

    申请号:US18137200

    申请日:2023-04-20

    Applicant: Apple Inc.

    CPC classification number: H04W72/40 H04L5/0016 H04L1/1812

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing resource allocations for feedback channels in sidelink communications. A UE can be configured to receive a physical sidelink control channel (PSCCH) transmission or a physical sidelink shared channel (PSSCH) transmission over a sidelink between the UE and a second UE for sidelink communication. The UE can allocate a set of resource elements within an interlace including multiple resource blocks to carry physical sidelink feedback channel (PSFCH) content associated with the received PSCCH transmission or PSSCH transmission, where the set of resource elements includes a first resource element in a first resource block of the interlace, and a second resource element in a second resource block of the interlace. The UE can be further configured to transmit the PSFCH content carried by the set of resource elements as a PSFCH transmission to the second UE.

    JOINT CHANNEL ESTIMATION FOR MULTIPLE DOWNLINK TRANSMISSIONS

    公开(公告)号:US20230344677A1

    公开(公告)日:2023-10-26

    申请号:US18129672

    申请日:2023-03-31

    Applicant: Apple Inc.

    CPC classification number: H04L25/0204 H04L5/0051 H04W72/0446

    Abstract: Mechanisms are provided for a user equipment (UE) to perform joint channel estimation for multiple downlink transmissions. A method performed by a UE can include reporting, to a base station, a capability of the lIE to perform joint channel estimation, receiving a configuration for joint channel estimation, where the configuration includes a time domain window (TDW) indicating a duration of the joint channel estimation, and further determining whether to perform the joint channel estimation. Based on a determination to perform the joint channel estimation, the method can include determining an actual time domain window within the TDW for performing the joint channel estimation, and performing the joint channel estimation within the actual time domain window for a first physical downlink shared channel (PDSCH) transmission based on a first demodulation reference signals (DMRS), and a second PDSCH transmission based on a second DMRS.

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