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    Handover between cells based on signal quality and interference estimation
    4.
    发明授权
    Handover between cells based on signal quality and interference estimation 有权

    公开(公告)号：US09693281B2

    公开(公告)日：2017-06-27

    申请号：US14872065

    申请日：2015-09-30

    Applicant: Apple Inc.

    Inventor： Karthik Chockalingam ,  Sai Sravan Bharadwaj Karri ,  Swaminathan Balakrishnan ,  Sachin J. Sane

    IPC: H04W36/30

    CPC classification number: H04W36/30 ,  H04W36/0055 ,  H04W36/0088

    Abstract: Method and apparatus to trigger a handover of a mobile device from a serving cell to a neighbor cell based on signal quality are disclosed. The mobile device measures signal strength and signal quality for the serving cell. When the signal strength exceeds a network-defined threshold and the signal quality falls below a mobile device defined threshold, the mobile device measures at least one neighbor cell. When a neighbor cell exceeds the network-defined threshold for signal strength and also meets the mobile device defined signal quality threshold, the mobile device sends a measurement report to the serving cell to trigger the handover. The measurement report includes modified values that indicate the serving cell does not meet network-defined threshold values and that the neighbor cell outperforms the serving cell.

    METHODS TO CONTROL MULTIPLE RADIO ACCESS BEARERS IN A WIRELESS DEVICE
    5.
    发明申请
    METHODS TO CONTROL MULTIPLE RADIO ACCESS BEARERS IN A WIRELESS DEVICE 审中-公开
    在无线设备中控制多个无线电接入轴承的方法

    公开(公告)号：US20130182681A1

    公开(公告)日：2013-07-18

    申请号：US13730631

    申请日：2012-12-28

    Applicant: Apple Inc.

    Inventor： Sachin J. Sane ,  Jianxiong Shi

    IPC: H04W36/06

    CPC classification number: H04W36/06 ,  H04L1/1685 ,  H04L1/1867 ,  H04L2001/0092 ,  H04W76/11 ,  H04W76/15 ,  H04W76/34

    Abstract: A method to control multiple radio access bearers is performed at a mobile wireless communication device when the mobile wireless communication device is connected to a radio network subsystem in a wireless communication network by first and second bidirectional radio access bearers. The mobile wireless communication device transmits a data packet on an uplink of the first bidirectional radio access bearer to the radio network subsystem. When the data packet is not correctly received by the radio network subsystem, the mobile wireless communication device retransmits the data packet repeatedly. After N retransmissions of the data packet, the mobile wireless communication device releases the first bidirectional radio access bearer while maintaining the second bidirectional radio access bearer. The first bidirectional radio access bearer provides a channel to transport packet switched data, and the second bidirectional radio access bearer provides a channel to transport circuit switched data.

    Abstract translation: 当移动无线通信设备通过第一和第二双向无线电接入承载连接到无线通信网络中的无线电网络子系统时，在移动无线通信设备处执行用于控制多个无线电接入承载的方法。 移动无线通信设备将第一双向无线接入承载的上行链路上的数据分组发送到无线网络子系统。 当数据分组未被无线电网络子系统正确接收时，移动无线通信设备重复重传该数据分组。 在数据分组的N次重传之后，移动无线通信设备在保持第二双向无线接入承载的同时释放第一双向无线接入承载。 第一双向无线电接入承载提供传输分组交换数据的信道，第二双向无线电接入承载提供传输电路交换数据的信道。

    SYSTEMS AND METHODS FOR ASSISTED CELLULAR CONNECTIVITY
    6.
    发明公开
    SYSTEMS AND METHODS FOR ASSISTED CELLULAR CONNECTIVITY 审中-公开

    公开(公告)号：US20240089840A1

    公开(公告)日：2024-03-14

    申请号：US17945031

    申请日：2022-09-14

    Applicant: Apple Inc.

    Inventor： Ozgur Ekici ,  Sachin J. Sane ,  Thanigaivelu Elangovan ,  Rajesh Ambati ,  Richard B. Warren ,  Rachid Kachemir ,  Ampy B. Fejes

    IPC: H04W48/16 ,  H04W68/00 ,  H04W76/15 ,  H04W76/18

    CPC classification number: H04W48/16 ,  H04W68/005 ,  H04W76/15 ,  H04W76/18

    Abstract: Embodiments herein provide apparatuses and techniques for providing a notification indicating guidance to reaching cellular connectivity in the event of a loss of cellular connectivity and for guiding a user of a user equipment to a location with cellular connectivity. The notification may be generated based on expiration of a timer, a screen unlock operation, or an application connection failure. The notification may indicate how long ago the cellular connectivity loss occurred and how far away a nearest location is with a cellular connectivity was. The user equipment may display a map interface based on user input selecting the notification. The map interface may show a map of the current location of the user equipment, a nearest location with cellular connectivity to the user equipment, and a path, which includes a tracked path of user equipment and a proposed path to the nearest location with cellular connectivity.

    ENHANCED SSB BEAM REPORTING
    7.
    发明申请
    ENHANCED SSB BEAM REPORTING 有权

    公开(公告)号：US20230093045A1

    公开(公告)日：2023-03-23

    申请号：US17950933

    申请日：2022-09-22

    Applicant: Apple Inc.

    Inventor： Sagar B. Shah ,  Sachin J. Sane

    IPC: H04B17/318 ,  H04W24/10 ,  H04W56/00

    Abstract: Systems, apparatuses, methods, and computer programs for reference signal measurement reporting by a user equipment (UE) in a wireless communications system. In one aspect, the method can include actions of measuring a reference signal received power (RSRP) value for each of a plurality of synchronization signal block (SSB) beams from a base station, determining that a greatest RSRP value of the measured RSRP values is less than or equal to a predetermined threshold, responsive to the determination, calculating, based at least in part on the measured RSRP values and a horizontal/vertical (H/V) polarization imbalance for each of the plurality of SSB beams, a ranking of the plurality of SSB beams, and reporting at least one of the ranked plurality of SSB beams to the base station.

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