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    Conditional transmission deferral for dual wireless band coexistence
    103.
    发明授权
    Conditional transmission deferral for dual wireless band coexistence 有权

    公开(公告)号：US10334654B2

    公开(公告)日：2019-06-25

    申请号：US15935453

    申请日：2018-03-26

    Applicant: Apple Inc.

    Inventor： William S. Burchill ,  Wen Zhao ,  Huanyu Chen ,  Zhaojun Cheng ,  Weiping Dou

    IPC: H04W16/14 ,  H04W72/12 ,  H04W76/15 ,  H04W88/06

    Abstract: A wireless communication system is presented for multiple wireless technology coexistence in a mobile device. A method according to this application might include obtaining one or more transmit allocation parameters for a wireless transmission via a first radio technology at a first wireless processor and the preparing to receive wireless data via a second radio technology at a second wireless processor. Next, the exemplary method might request that the wireless transmission be deferred, followed by deciding whether to grant the deferral request based at least on the one or more transmit allocation parameters.

    Avoiding conflicts between device-initiated handovers and network-initiated handovers
    106.
    发明授权
    Avoiding conflicts between device-initiated handovers and network-initiated handovers 有权

    公开(公告)号：US09749915B2

    公开(公告)日：2017-08-29

    申请号：US14607815

    申请日：2015-01-28

    Applicant: Apple Inc.

    Inventor： Ajoy K. Singh ,  Wen Zhao

    IPC: H04W36/04 ,  H04W36/00

    CPC classification number: H04W36/0083 ,  H04W36/0022

    Abstract: In some embodiments, a user equipment device (UE) implements techniques for avoiding conflicts between UE-initiated and network-initiated handovers. In one embodiment, one or more first radios are configured to perform cellular communication using different first and second cellular radio access technologies (RATs) and a second radio is configured to perform wireless communication using a short-range RAT. In one embodiment, the mobile device is configured to, while communicating using the first cellular RAT, in response to determining that an inter-RAT handover to the short-range RAT is likely to be initiated or has been initiated by the at least one processor, delay sending a measurement report to the cellular base station. This delay may avoid conflict between handovers initiated by the network in response to the measurement report (e.g., from the first cellular RAT to the second cellular RAT) and the inter-RAT handover.

    Transitioning a video call between networks
    107.
    发明授权
    Transitioning a video call between networks 有权

    公开(公告)号：US09635596B2

    公开(公告)日：2017-04-25

    申请号：US14944156

    申请日：2015-11-17

    Applicant: Apple Inc.

    Inventor： Samy Khay-Ibbat ,  Sarma V. Vangala ,  Paul V. Flynn ,  Wen Zhao ,  Sreevalsan Vallath ,  Navid Damji

    IPC: H04W36/30 ,  H04N7/14 ,  H04W36/14

    CPC classification number: H04W36/30 ,  H04N7/147 ,  H04N7/148 ,  H04W36/14

    Abstract: A method for transitioning a video call is provided. The method can include a wireless communication device participating in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and a first cellular network. The video call can include a packet switched video stream carried over a first bearer and an audio stream carried over a second bearer. The method can further include the wireless communication device determining a degradation in a connection quality for the first cellular network; transitioning to a legacy cellular network having a circuit switched domain in response to the degradation in connection quality for the first cellular network; establishing a second video call session on the legacy cellular network; and using the second video call session to continue the video call on the legacy cellular network.

    Carrier aggregation using unlicensed frequency bands
    109.
    发明授权
    Carrier aggregation using unlicensed frequency bands 有权
    使用未许可频段的载波聚合

    公开(公告)号：US09554283B2

    公开(公告)日：2017-01-24

    申请号：US14095277

    申请日：2013-12-03

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Dawei Zhang ,  Wen Zhao

    IPC: H04W16/14 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08

    CPC classification number: H04W16/14 ,  H04L5/001 ,  H04W72/0453 ,  H04W72/085

    Abstract: Carrier aggregation using unlicensed frequency bands. A primary carrier for communication between a base station (BS) and a wireless user equipment (UE) device may be configured according to a first wireless communication technology. The primary carrier may be on a licensed frequency band. A secondary carrier for communication between the BS and the UE may also be configured according to a first wireless communication technology. The secondary carrier may be on an unlicensed frequency band. Channel conditions for each of multiple possible channels of the unlicensed frequency band may be assessed according to a second wireless communication technology as part of configuring the secondary carrier.

    Abstract translation: 使用未许可频段的载波聚合。 可以根据第一无线通信技术来配置用于基站（BS）和无线用户设备（UE）设备之间的通信的主载波。 主载波可以在授权频带上。 用于BS和UE之间的通信的辅助载波也可以根据第一无线通信技术进行配置。 次级载波可以在未许可的频带上。 作为配置辅助载波的一部分，可以根据第二无线通信技术来评估非许可频带的多个可能信道中的每一个的信道条件。

    Dynamic backoff in Wi-Fi calling
    110.
    发明授权
    Dynamic backoff in Wi-Fi calling 有权
    Wi-Fi呼叫中的动态回退

    公开(公告)号：US09549337B2

    公开(公告)日：2017-01-17

    申请号：US14501870

    申请日：2014-09-30

    Applicant: Apple Inc.

    Inventor： Xiaowen Wang ,  Ajoy K. Singh ,  Wen Zhao ,  Shu Du ,  Kapil Chhabra ,  Rudy E. Rawlins

    IPC: H04W48/18 ,  H04W76/00 ,  H04W40/12 ,  H04W40/16 ,  H04W28/02 ,  H04W36/22 ,  H04W36/20 ,  H04W36/12 ,  H04W84/12 ,  H04W36/30 ,  H04W36/00 ,  H04W76/02 ,  H04W36/14

    CPC classification number: H04W28/0236 ,  H04W36/0022 ,  H04W36/14 ,  H04W36/20 ,  H04W36/30 ,  H04W40/12 ,  H04W40/16 ,  H04W48/18 ,  H04W76/10 ,  H04W84/12

    Abstract: In order to improve the quality of a telephone call communicated over a wireless local area network (WLAN), an electronic device (such as a cellular telephone) may obtain one or more performance metrics based on communication with another electronic device (such as an access point) via a connection in the WLAN. For example, the electronic device may receive the one or more performance metrics from the other electronic device and/or may determine the one or more performance metrics based on the performance of the communication. Then, the electronic device may compare the one or more performance metrics with an interference criterion. If the interference criterion is met, the electronic device may perform a remedial action, such as selectively discontinuing use of the WLAN to communicate the telephone call for a time interval. Otherwise, the electronic device may continue using the WLAN to communicate the telephone call.

    Abstract translation: 为了提高通过无线局域网（WLAN）传送的电话呼叫的质量，电子设备（诸如蜂窝电话）可以基于与另一电子设备（例如接入点）的通信获得一个或多个性能度量 点）通过WLAN中的连接。 例如，电子设备可以从其他电子设备接收一个或多个性能度量，和/或可以基于通信的性能来确定一个或多个性能度量。 然后，电子设备可以将一个或多个性能度量与干扰标准进行比较。 如果满足干扰标准，则电子设备可以执行补救动作，例如选择性地中断WLAN的使用以在一段时间间隔内传送电话呼叫。 否则，电子设备可以继续使用WLAN来通信电话呼叫。

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