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    New Radio Wakeup Radio
    391.
    发明公开
    New Radio Wakeup Radio 审中-公开

    公开(公告)号：US20240196469A1

    公开(公告)日：2024-06-13

    申请号：US17908839

    申请日：2021-09-06

    Applicant: Apple Inc.

    Inventor： Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Hong He ,  Haitong Sun ,  Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Sigen Ye ,  Wei Zeng ,  Dawei Zhang ,  Yushu Zhang

    IPC: H04W76/27 ,  H04W52/02

    CPC classification number: H04W76/27 ,  H04W52/0229

    Abstract: Apparatuses, systems, and methods for a wakeup radio in a wireless communication system, e.g., in 5G NR systems and beyond. An RRC state is introduced to support a wakeup radio/, including defining transition mechanisms to/from existing RRC states. Further, signaling is introduced to activate a wakeup radio/activate an RRC low power state. Additionally, a bandwidth part framework for a wakeup signal is defined in which a base station may configure one or more time/frequency resources or a wakeup signal for a wakeup radio. In addition, various mechanisms are introduced to switch a wakeup radio on as well as to switch a wakeup radio off. Also, mechanisms are introduced for multiplexing multiple wakeup signals in a time/frequency resource, configuring a wakeup signal bandwidth, and configuring which beam a wakeup signal may be received on.

    Semi-static channel access for traffic with different priorities
    395.
    发明授权
    Semi-static channel access for traffic with different priorities 有权

    公开(公告)号：US11979911B2

    公开(公告)日：2024-05-07

    申请号：US17442535

    申请日：2020-10-16

    Applicant: Apple Inc.

    Inventor： Oghenekome Oteri ,  Huaning Niu ,  Weidong Yang ,  Sigen Ye ,  Haitong Sun ,  Chunxuan Ye ,  Chunhai Yao ,  Hong He ,  Wei Zeng ,  Dawei Zhang

    IPC: H04W74/08 ,  H04W8/04 ,  H04W74/0808 ,  H04W74/0833

    CPC classification number: H04W74/0825 ,  H04W8/04 ,  H04W74/0808 ,  H04W74/0833 ,  H04W74/08

    Abstract: Current 5G provisions for wireless communications do not allow for the differentiation of channel access by User Equipments (UEs) with different priorities. Approaches are described by which priority access for UEs in a controlled environment using frame based equipment (FBE), and in particular for different UEs or the same UE that has different configured grants. The approaches are particularly helpful for ultra-reliable low-latency communication (URLLC) UEs. In one approach, the UE performs a clear channel assessment (CCA) in an idle period before the fixed frame period (FFP), followed by a channel access priority test. In an alternative approach, the UE performs a channel access priority test before the UE performs a clear channel assessment (CCA) in an idle period before the fixed frame period (FFP). Other approaches include setting the fixed frame period length to different sizes for each UE, using a random number of skipped fixed frame periods, and the gNB configuring UEs with multiple semi-static channel access mode parameters.

    Systems and methods for network-side UL cancellation using interlaced frequency resource allocation
    396.
    发明授权
    Systems and methods for network-side UL cancellation using interlaced frequency resource allocation 有权

    公开(公告)号：US11943803B2

    公开(公告)日：2024-03-26

    申请号：US17593816

    申请日：2020-09-24

    Applicant: Apple Inc.

    Inventor： Sigen Ye ,  Weidong Yang ,  Oghenekome Oteri ,  Haitong Sun ,  Chunhai Yao ,  Yushu Zhang ,  Dawei Zhang ,  Chunxuan Ye ,  Wei Zeng ,  Hong He

    IPC: H04W72/00 ,  H04W72/23 ,  H04W72/566

    CPC classification number: H04W72/566 ,  H04W72/23

    Abstract: A method for wireless communication includes: scheduling, by a wireless station, a first uplink (UL) transmission from a wireless device; determining, by the wireless station, a need for a higher priority uplink transmission that uses resources overlapping with the first UL transmission; determining, by the wireless station, a reference region, within which a UL cancellation indication (CI) is to be applied; determining, by the wireless station, a set of UL resources in the reference region for cancellation, wherein at least a subset of the UL resources in the reference region are interlaced; sending, via a downlink control channel, indication of the determined set of UL resources for cancellation (e.g., by indicating particular interlaces and/or particular Physical Resource Blocks within such interlaces that are to be canceled); and receiving, at the wireless station, the higher priority uplink transmission via at least a subset of the determined set of cancelled UL resources.

    System and method for high speed doppler compensation in a cellular environment
    397.
    发明授权
    System and method for high speed doppler compensation in a cellular environment 有权

    公开(公告)号：US11929950B2

    公开(公告)日：2024-03-12

    申请号：US17441962

    申请日：2020-08-05

    Applicant: Apple Inc.

    Inventor： Haitong Sun ,  Wei Zeng ,  Yushu Zhang ,  Hong He ,  Oghenekome Oteri ,  Sigen Ye ,  Weidong Yang ,  Chunxuan Ye ,  Chunhai Yao ,  Dawei Zhang

    IPC: H04L5/00 ,  H04B7/01

    CPC classification number: H04L5/0048 ,  H04B7/01 ,  H04L5/0035

    Abstract: Methods and apparatuses are disclosed for calculating and compensating for Doppler shift in a high-speed environment. When in a high-speed environment, Doppler shifts on a transmitted radio frequency signal can become extremely large, which may make it difficult or even impossible for a receiving device to accurately decipher the signal. Therefore, embodiments of the present disclosure describe how tracking reference signals can be transmitted from multiple transmission/reception points, and processed by the UE. For example, the TRS transmitted from the TRP can be enhanced to allow for TRS information from two different TRPs. Additionally, or alternatively, a flag can be set within TRS information that identifies it as having originated from either a first TRP or a second TRP. Additionally, the UE can calculate Doppler shift information and report that information back to the base station in a report message, such as an SRS message. In this manner, the base station can precompensate for the Doppler shift.

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