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.

    Downlink signal reception with antenna panel switching

    公开(公告)号:US12119916B2

    公开(公告)日:2024-10-15

    申请号:US18319250

    申请日:2023-05-17

    Applicant: Apple Inc.

    CPC classification number: H04B7/0828 H04L5/0048 H04W72/23

    Abstract: Apparatuses, systems, and methods for performing downlink signal reception with antenna panel switching in a wireless communication system. A cellular base station may receive an indication of an antenna panel activation delay from a wireless device. The cellular base station may select a scheduling offset for a transmission to the wireless device based at least in part on the antenna panel activation delay. The scheduling offset may be selected to be at least the length of the antenna panel activation delay if it is expected that the wireless device may perform antenna panel activation to receive the transmission. The cellular base station may schedule the transmission to the wireless device using the selected scheduling offset, and may perform the transmission to the wireless device at the selected scheduling offset after scheduling the transmission to the wireless device.

    RRC-based user data transmission in an inactive state

    公开(公告)号:US12114389B2

    公开(公告)日:2024-10-08

    申请号:US17438196

    申请日:2020-10-22

    Applicant: Apple Inc.

    CPC classification number: H04W76/27

    Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.

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