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    TRP-Specific PUSCH Transmissions for Multi-TRP Operation
    221.
    发明公开
    TRP-Specific PUSCH Transmissions for Multi-TRP Operation 审中-公开

    公开(公告)号：US20240048320A1

    公开(公告)日：2024-02-08

    申请号：US17754460

    申请日：2021-04-06

    Applicant: Apple Inc.

    Inventor： Haitong SUN ,  Dawei ZHANG ,  Huaning NIU ,  Oghenekome OTERI ,  Seyed Ali Akbar FAKOORIAN ,  Wei ZENG ,  Weidong YANG ,  Yushu ZHANG

    IPC: H04L5/00 ,  H04W72/232

    CPC classification number: H04L5/0051 ,  H04W72/232

    Abstract: A user equipment (UE) is configured to communicate with one or more transmission and reception points (TRPs). The UE receives a sounding reference signal (SRS) resource set configuration including a first resource set corresponding to a first transmission and reception point (TRP) and a second resource set corresponding to a second TRP, receives a downlink control information (DCI) transmission including an SRS resource indicator (SRI) indicating (i) which resource from the first resource set should be selected for a first physical uplink shared channel (PUSCH) transmission to a first TRP, and (ii) which resource from the second resource set should be selected for a second PUSCH transmission to a second TRP and transmits the first PUSCH transmission to the first TRP and the second PUSCH transmission to the second TRP.

    UNIFIED RANDOM ACCESS (RA) DESIGN FOR MULTIPLE FEATURES BACKGROUND
    222.
    发明公开
    UNIFIED RANDOM ACCESS (RA) DESIGN FOR MULTIPLE FEATURES BACKGROUND 审中-公开

    公开(公告)号：US20240032102A1

    公开(公告)日：2024-01-25

    申请号：US17441150

    申请日：2021-07-23

    Applicant: Apple Inc.

    Inventor： Fangli XU ,  Yuqin CHEN ,  Yushu ZHANG ,  Chunhai YAO ,  Haijing HU ,  Wei ZENG ,  Dawei ZHANG

    IPC: H04W74/08

    CPC classification number: H04W74/0833

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing unified RACH for multiple features. For example, some aspects of this disclosure relate to a method including determining, by a user equipment (UE), a feature to be indicated at an initial access of the UE to a base station and determining whether the UE and the base station support feature specific random access (RA) procedure for the feature. The method further includes determining whether a condition for the feature is satisfied in response to determining that both the UE and the base station support the feature specific RA procedure for the feature. In response to determining that the condition is satisfied, the method includes selecting a feature specific Random Access Channel (RACH) resource and perform a 4-step RA procedure or a 2-step RA procedure based on the selected feature specific RACH resource.

    UPLINK TRANSMIT SWITCHING WITH MULTIPLE TIMING ADVANCE GROUPS
    224.
    发明公开
    UPLINK TRANSMIT SWITCHING WITH MULTIPLE TIMING ADVANCE GROUPS 审中-公开

    公开(公告)号：US20240031967A1

    公开(公告)日：2024-01-25

    申请号：US17813783

    申请日：2022-07-20

    Applicant: Apple Inc.

    Inventor： Ankit BHAMRI ,  Dawei ZHANG ,  Sigen YE ,  Wei ZENG ,  Yang TANG

    IPC: H04W56/00 ,  H04L5/00

    CPC classification number: H04W56/005 ,  H04L5/0092

    Abstract: This application relates to wireless communications, including methods and apparatus to manage uplink (UL) transmit switching with multiple timing advance groups (TAGs) for wireless devices. A wireless device is configured to use multiple carriers selected from a set of available carriers that can be associated with different TAGs. When a second set of carriers, used after switching from a first set of carriers, includes carriers that belong to different TAGs, the wireless device determines whether to transmit on one or more first uplink transmission occasions for each of the carriers in the second set of carriers based on whether a first UL transmission occasion for at least one carrier overlaps a switching gap time period. The wireless device can disallow transmission on first UL transmission occasions of one or more carriers to accommodate the overlap.

    MANAGING UPLINK TRANSMISSION WITH MULTIPLE TIMING ADVANCE GROUPS
    225.
    发明公开
    MANAGING UPLINK TRANSMISSION WITH MULTIPLE TIMING ADVANCE GROUPS 审中-公开

    公开(公告)号：US20240031962A1

    公开(公告)日：2024-01-25

    申请号：US17813792

    申请日：2022-07-20

    Applicant: Apple Inc.

    Inventor： Ankit BHAMRI ,  Dawei ZHANG ,  Sigen YE ,  Wei ZENG ,  Yang TANG

    IPC: H04W56/00

    CPC classification number: H04W56/0045 ,  H04W56/0005

    Abstract: This application relates to wireless communications, including methods and apparatus to manage uplink (UL) transmit switching with multiple timing advance groups (TAGs) for wireless devices. A wireless device is configured to select N≥2 radio frequency carriers for UL transmission from M>N available radio frequency carriers and subsequently send UL transmissions to a cellular wireless network based on the configuration. The M available radio frequency carriers are divided into distinct TAGs, each TAG having a distinct timing advance value, and the N radio frequency carriers belong to a single TAG. The wireless device is further configured to switch to a second set of N UL radio frequency carriers, after an uplink switching gap time period, based on a TAG medium access control (MAC) control element (CE), received the cellular wireless network, which specifies a second TAG from which to select the second set of N UL radio frequency carriers.

    CSI FEEDBACK FOR MULTI-PDSCH TRANSMISSION
    227.
    发明公开
    CSI FEEDBACK FOR MULTI-PDSCH TRANSMISSION 审中-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.

    Inventor： Oghenekome OTERI ,  Wei ZENG ,  Dawei ZHANG ,  Seyed Ali Akbar FAKOORIAN ,  Weidong YANG ,  Sigen YE ,  Chunhai YAO ,  Yushu ZHANG ,  Chunxuan YE ,  Hong HE ,  Haitong SUN

    IPC: H04B7/06

    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
    228.
    发明公开
    Channel State Information Reporting 审中-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.

    Inventor： Haitong SUN ,  Chunhai YAO ,  Chunxuan YE ,  Dawei ZHANG ,  Hong HE ,  Huaning NIU ,  Ismael GUTIERREZ GONZALEZ ,  Oghenekome OTERI ,  Wei ZENG ,  Weidong YANG ,  Yushu ZHANG

    IPC: H04B7/06

    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.

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