Systems and Methods for Opportunistic Antenna Selection

    公开(公告)号:US20200091989A1

    公开(公告)日:2020-03-19

    申请号:US16136031

    申请日:2018-09-19

    申请人: Apple Inc.

    摘要: The present disclosure relates to opportunistically selecting an antenna in an electronic device having multiple antennas. A baseband processor of the electronic device may connect to a first cellular tower providing cellular service at a first frequency using a first antenna of the electronic device. The baseband processor may then receive an indication of a handover event to a second cellular tower operating at a second frequency. The baseband processor may determine signal measurements of the second cellular tower for each antenna of the electronic device that is capable of operating at the second frequency. The baseband processor may execute a handover to the second cellular tower using the antenna associated with the best performing signal measurements. In this manner, an antenna may be opportunistically selected based on performance of the antenna, improving operation of the electronic device and quality of cellular service.

    Control of measurement messaging in a mobile device
    5.
    发明授权
    Control of measurement messaging in a mobile device 有权
    控制移动设备中的测量消息

    公开(公告)号:US08909215B2

    公开(公告)日:2014-12-09

    申请号:US14059114

    申请日:2013-10-21

    申请人: Apple Inc.

    IPC分类号: H04W24/00 H04W24/10

    CPC分类号: H04W24/10

    摘要: A method to control measurement messaging is performed at a mobile wireless device. The mobile wireless device transmits a first measurement message to a radio access network in a wireless network and stores the first measurement message pending receipt of an acknowledgement from the radio access network. Before receiving the acknowledgement to the first measurement message, the mobile wireless device determines at least one parameter included in the first measurement message requires updating. The mobile wireless device deletes the stored pending first measurement message and transmits a second measurement message to the radio access network including an updated value for the at least one parameter in the first measurement message.

    摘要翻译: 在移动无线设备处执行控制测量消息的方法。 移动无线设备向无线网络中的无线电接入网络发送第一测量消息,并且在从无线接入网络接收到确认之前存储第一测量消息。 在接收到对第一测量消息的确认之前,移动无线设备确定包含在第一测量消息中的至少一个参数需要更新。 移动无线设备删除所存储的未决的第一测量消息,并向第一测量消息中的至少一个参数的更新值发送第二测量消息给无线接入网络。

    5G NR Efficient FR1/FR2 Operation

    公开(公告)号:US20210385707A1

    公开(公告)日:2021-12-09

    申请号:US17331331

    申请日:2021-05-26

    申请人: Apple Inc.

    IPC分类号: H04W36/00 H04W24/04 H04W74/08

    摘要: Apparatuses, systems, and methods for RACH procedures to avoid excessive handover/secondary cell group failures. A base station may declare a handover and/or secondary cell group (SCG) failure and may determine that a failure threshold has been met. The base station may perform a remedial action in response to meeting the failure threshold. The failure threshold may be multi-dimensional, where a first dimension is associated with a number of handover/SCG failures and where a second dimension is associated with a time period in which the number of handover/SCG failures occurred. Further, a third dimension may be associated with a UE mobility state and a fourth dimension may be associated with whether the UE is using FR1 or FR2. The remedial action in response to meeting the failure threshold may include the base station suspending transmission of measurement object configurations for a specified period of time.

    DSDS Wi-Fi calling enhancements
    9.
    发明授权

    公开(公告)号:US11039297B1

    公开(公告)日:2021-06-15

    申请号:US16802139

    申请日:2020-02-26

    申请人: Apple Inc.

    摘要: Apparatuses, systems, and methods for enhancement of Wi-Fi calling for DSDS user equipment devices (UEs). The UE may register a first connection supported by a first SIM with IMS for VoWiFi based on a determination to prefer VoWiFi for the first SIM. The first SIM may be associated with a first subscription to a first RAN. The UE may include a second SIM that may be associated with a second subscription to a second RAN. The UE may register a second connection associated with the second SIM with the IMS for VoWiFi and/or VoLTE and initiate/receive, via the first connection supported by the first SIM, a VoWiFi call. A recommendation to handover the VoWiFi call from Wi-Fi to cellular data may be received and, based, at least in part, on the recommendation, the UE may register a second connection associated with the second SIM for IWLAN over cellular data.