METHOD FOR ENHANCED HARQ-ACK FEEDBACK IN WIRELESS COMMUNICATIONS

    公开(公告)号:US20240372654A1

    公开(公告)日:2024-11-07

    申请号:US18772978

    申请日:2024-07-15

    Applicant: Apple Inc.

    Abstract: Some embodiments include an apparatus, method, and computer program product for enhanced Hybrid Automatic Repeat Request (HARQ)-ACK in a fifth generation (5G) wireless communications system. A user equipment (UE) can receive, during a HARQ-ACK window, a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) transmission or a Physical Downlink Control Channel (PDCCH) transmission corresponding to a SPS PDSCH release. The UE can generate a Hybrid Automatic Repeat Request (HARQ)-ACK information bit corresponding to the reception. The UE can be configured with an offset value, k, and a length, l, of the HARQ-ACK window associated with an uplink transmission slot n, of a Physical Uplink Control Channel (PUCCH) transmission, and determine a starting slot of the HARQ-ACK window as n-k. When a corresponding valid uplink transmission slot is not available, the UE can transmit the HARQ-ACK information bit in the uplink transmission slot n of the PUCCH transmission.

    Methods and apparatus for radio resource control based bandwidth parts switching

    公开(公告)号:US12137068B2

    公开(公告)日:2024-11-05

    申请号:US17598216

    申请日:2020-04-08

    Applicant: Apple Inc.

    Abstract: A method and apparatus of a device that switches bandwidth parts for a user equipment device and a base station is described. In an exemplary embodiment, the device receives an indication to switch to the bandwidth part for the user equipment on the wireless link from the base station. In addition, the device switches to the new bandwidth part for the user equipment. The device further signals that the switching to the new bandwidth part has occurred in a time period smaller than a predefined time period. The deice additionally communicates information on the wireless link using the new bandwidth part.

    System and method for fast beam tracking in a cellular environment

    公开(公告)号:US12132551B2

    公开(公告)日:2024-10-29

    申请号:US17442456

    申请日:2020-08-05

    Applicant: Apple Inc.

    CPC classification number: H04B7/0695 H04W8/24

    Abstract: Methods and apparatuses are disclosed for performing fast beam tracking in a wireless communication environment. A UE signals to a gNB its capabilities for intra-symbol beam sweeping. Depending on configuration, the UE can either assume that the intra-symbol beam sweeping configuration will be implemented, or will await a response from the gNB before implementing intra-symbol beam sweeping. Although this is generally carried out during initial access between the UE and the gNB, the beam sweeping configuration can be dynamically updated by either the UE or the gNB during established communication. For example, the UE can signal a desired change via its MAC CE, and the gNB can signal its change to the UE via DCI.

    Channel state information reporting
    468.
    发明授权

    公开(公告)号:US12132545B2

    公开(公告)日:2024-10-29

    申请号:US17259886

    申请日:2020-02-12

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for a wireless device to perform channel state information reporting. The wireless device may receive channel state information reporting configuration information. The channel state information reporting configuration information may include an indication to use a wideband precoding matrix indicator format for 3GPP release 16 type II channel state information reporting. The wireless device may perform channel state information reporting using a different reporting configuration than 3GPP release 16 type II channel state information reporting using a wideband precoding matrix indicator format based at least in part on the channel state information reporting configuration information. The wireless device may also or alternatively perform 3GPP type I channel state information reporting using a unified spatial basis selection framework for rank indicators of 3 and 4 for any number of channel state information reference signal ports.

    User equipment-triggered lower layer-based handover

    公开(公告)号:US12120571B2

    公开(公告)日:2024-10-15

    申请号:US17593425

    申请日:2020-05-15

    Applicant: APPLE INC.

    CPC classification number: H04W36/30 H04W36/0016 H04W36/0058

    Abstract: Performing a UE-triggered lower layer-based handover may include, based on measurements associated with both a source gNB and a target gNB, determining that a UE-triggered handover utilizing layer 1 or layer 2 is to be performed. First uplink resources configured by the source gNB for a dedicated scheduling request may be determined. The dedicated scheduling request may be generated at the UE to request second uplink resources from the gNB for a physical uplink shared channel (PUSCH) a handover request in a media access control (MAC) control element (CE). The handover request carried by the MAC CE for the source gNB may be generated. In response to the handover request, a handover command from the source gNB associated with performing a handover procedure from the source gNB to the target gNB may be processed.

Patent Agency Ranking