SYSTEMS AND METHODS FOR MEASUREMENT SOLUTIONS FOR INTER-RAT MO FROM LTE MN IN EN-DC

    公开(公告)号:US20230180071A1

    公开(公告)日:2023-06-08

    申请号:US17593685

    申请日:2021-01-13

    Applicant: APPLE INC.

    CPC classification number: H04W36/0069 H04W36/0058

    Abstract: Embodiments of the present disclosure enable a user equipment (UE) to performing inter-Radio Access Technology (RAT) measurements. The UE determines whether one or more inter-RAT measurement object (MO) is configured with or without a measurement gap (MG). When the one or more inter-RAT MO is on an NR serving component carrier (CC) with the MG, the UE performs an inter-RAT measurement on the NR serving CC based on whether the MG is fully overlapped or partially overlapped with synchronization signal blocks (SSBs) of a target MO of the one or more inter-RAT MO. When the one or more inter-RAT MO is on the NR serving CC without the MG, the UE performs the inter-RAT measurement on the NR serving CC based on whether a target SSB of the target MO is within or outside an active bandwidth part (BWP) of the NR serving CC.

    SYSTEMS AND METHODS FOR CONFIGURING TRANSMISSION POWER LEVEL BASED ON BODY PROXIMITY

    公开(公告)号:US20230132977A1

    公开(公告)日:2023-05-04

    申请号:US17747525

    申请日:2022-05-18

    Applicant: Apple Inc.

    Abstract: A first transmission power level based on a radio frequency exposure limit and a second transmission power level based on the first transmission power level and a probability of detection of a body by a body proximity sensor are determined, where it is ensured that an average usage of the first and second transmission power levels over time does not exceed the transmission power limit, determined based on radio frequency exposure limits. A transmission power gain is determined based on a difference between the first and second transmission power level based on the probability of detection, and a false alarm rate of the body by the body proximity sensor. The transmission power gain may be used as a performance indicator to select from multiple first and second transmission power gains. First and second transmission power gains corresponding to the selected transmission power gain may be stored and applied during transmission.

    CELL RESELECTION AND MEASUREMENT IN A HIGH-SPEED MODE IN WIRELESS COMMUNICATIONS

    公开(公告)号:US20230116740A1

    公开(公告)日:2023-04-13

    申请号:US17441689

    申请日:2021-01-13

    Applicant: Apple Inc.

    Abstract: The present application relates to devices and components including apparatus, systems, and methods to perform cell reselection. In an example, timing requirements for synchronization signal processing are defined based on a beam sweeping capability of the device. Synchronization signals are received and processed according to the timing requirements to complete a cell reselection procedure. In another example, location data of the device is used to look up a database of cell identifiers. A cell identifier is determined based on the look-up and a cell reselection procedure is performed using the cell identifier.

    Mitigation of Listen Before Talk Conflicts in the Unlicensed Spectrum

    公开(公告)号:US20250071812A1

    公开(公告)日:2025-02-27

    申请号:US18946319

    申请日:2024-11-13

    Applicant: Apple Inc.

    Abstract: Apparatuses, systems, and methods for mitigation of listen before talk conflicts in the unlicensed spectrum. A wireless device may receive one or more synchronization signal blocks (SSBs) from a base station (BS) as part of a measurement procedure with listen before talk (LBT). The wireless device may determine one or more LBT failures associated with one or more receive beams of the wireless device. Furthermore, in response to determining the one or more LBT failures associated with the one or more receive beams of the wireless device, the wireless device may extend a measurement period for the one or more receive beams of the wireless device. The wireless device may then receive one or more additional SSBs on the one or more receive beams of the wireless device.

    RACH configuration in L1/L2 mobility

    公开(公告)号:US12120564B2

    公开(公告)日:2024-10-15

    申请号:US17593413

    申请日:2021-04-02

    Applicant: APPLE INC.

    CPC classification number: H04W36/0077 H04W36/0016 H04W74/0833

    Abstract: Devices, systems, and methods for Random Access Channel (RACH) configuration in Layer 1 (L1)/Layer 2 (L2) mobility. A user equipment (UE) may obtain a downlink (DL) Transmission Configuration Indicator (TCI) list from a first Transmission and Reception Point (TRP). The DL TCI list may include DL beam information, RACH Occasion (RO) information, and initial Bandwidth Part (BWP) information associated with each DL TCI of a plurality of DL TCIs related to the first TRP and multiple TRPs adjacent to the first TRP. The UE may receive a handover command from the first TRP via Downlink Control Information (DCI) in Li or Media Access Control (MAC) Control Element (CE) in L2. The handover command indicates a handover from the first TRP to a second TRP of the multiple TRPs for the UE, and includes a specified DL TCI related to the second TRP. The UE may determine RACH information related to the second TRP, based at least partly on the specified DL TCI related to the second TRP included in the handover command and the DL TCI list. The UE may then perform random access to the second TRP based on the RACH information related to the second TRP. The RACH information may include uplink (UL) beam information, RO information and Bandwidth Part (BWP) information for the UE to perform random access to the second TRP.

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