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    Varying HP-PLMN Scan Rate Using Scan History
    12.
    发明申请
    Varying HP-PLMN Scan Rate Using Scan History 有权
    使用扫描历史记录改变HP-PLMN扫描速率

    公开(公告)号：US20160309400A1

    公开(公告)日：2016-10-20

    申请号：US14732060

    申请日：2015-06-05

    Applicant: Apple Inc.

    Inventor： Arvind Swaminathan ,  Umesh K. Shukla ,  Srinivas Pasupuleti ,  Viswanath Nagarajan ,  Thanigaivelu Elangovan ,  Madhusudan Chaudhary

    IPC: H04W48/16 ,  H04W84/02

    CPC classification number: H04W48/16 ,  H04W84/02

    Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to more efficiently scan frequency bands for potential base stations may include a UE configured maintain a first list of cells for which a cellular scan has been successful and a second list of cells for which a cellular scan has not been successful. The UE may be configured perform a first cellular while camped on a first cell at an expiration of a scan timer and, if the cellular scan is not successful, the increment a first failure count variable associated with the first cell and add the first cell to the second list if the first cell is not present on the first or second list. Additionally, if the first cellular scan is successful, the UE may be configured to add the first cell to the first list if the first cell is not present on the first list.

    Abstract translation: 用于用户设备（UE）设备以更有效地扫描潜在基站的频带的设备，系统和方法可以包括配置的UE配置维护蜂窝扫描已经成功的小区的第一列表以及第 蜂窝扫描未成功。 UE可以被配置为在扫描定时器到期时驻留在第一小区上执行第一蜂窝，并且如果蜂窝扫描不成功，则增加与第一小区相关联的第一故障计数变量并将第一小区添加到 第二个列表，如果第一个单元格不存在于第一个或第二个列表中。 另外，如果第一蜂窝扫描成功，则UE可以被配置为如果第一小区不存在于第一列表上，则将第一小区添加到第一列表。

    Cellular system selection frequency scan scope
    14.
    发明授权
    Cellular system selection frequency scan scope 有权

    公开(公告)号：US11284318B2

    公开(公告)日：2022-03-22

    申请号：US16806217

    申请日：2020-03-02

    Applicant: Apple Inc.

    Inventor： Jianxiong Shi ,  Lakshmi N. Kavuri ,  Madhusudan Chaudhary ,  Thanigaivelu Elangovan ,  Viswanath Nagarajan ,  Yifan Zhu

    IPC: H04W36/00 ,  H04J11/00 ,  H04W36/32 ,  H04W36/36 ,  H04W48/16 ,  H04W48/18

    Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may determine that it does not have cellular service and determine first information based on a last camped cell. A time period during which the first information was acquired may be determined and one or more frequency scans may be performed. The frequency scans may be limited to a set of frequencies based in part on the time period. Thus, if the time period is less than a first value, the set of frequencies may include a first set of frequencies and if the time period is greater than the first value but less than a second value, the set of frequencies may include the first set of frequencies and a second set of frequencies.

    Cellular system selection frequency scan scope
    18.
    发明授权
    Cellular system selection frequency scan scope 有权

    公开(公告)号：US10609600B2

    公开(公告)日：2020-03-31

    申请号：US16372263

    申请日：2019-04-01

    Applicant: Apple Inc.

    Inventor： Jianxiong Shi ,  Lakshmi N. Kavuri ,  Madhusudan Chaudhary ,  Thanigaivelu Elangovan ,  Viswanath Nagarajan ,  Yifan Zhu

    IPC: H04W36/00 ,  H04J11/00 ,  H04W36/32 ,  H04W36/36 ,  H04W48/16 ,  H04W48/18

    Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may determine that it does not have cellular service and determine first information based on a last camped cell. A time period during which the first information was acquired may be determined and one or more frequency scans may be performed. The frequency scans may be limited to a set of frequencies based in part on the time period. Thus, if the time period is less than a first value, the set of frequencies may include a first set of frequencies and if the time period is greater than the first value but less than a second value, the set of frequencies may include the first set of frequencies and a second set of frequencies.

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