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    TRANSITIONING A VIDEO CALL BETWEEN NETWORKS
    41.
    发明申请
    TRANSITIONING A VIDEO CALL BETWEEN NETWORKS 有权
    转换网络之间的视频通话

    公开(公告)号：US20140176660A1

    公开(公告)日：2014-06-26

    申请号：US14109665

    申请日：2013-12-17

    Applicant: Apple Inc.

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

    IPC: H04W36/30 ,  H04N7/14

    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.

    Abstract translation: 提供了一种用于转换视频呼叫的方法。 该方法可以包括经由无线通信设备和第一蜂窝网络之间的连接建立的第一视频呼叫会话与远程通信设备参与视频呼叫的无线通信设备。 视频呼叫可以包括通过第一承载携带的分组交换视频流和通过第二承载携带的音频流。 该方法还可以包括无线通信设备确定第一蜂窝网络的连接质量的劣化; 响应于第一蜂窝网络的连接质量的劣化，转换到具有电路交换域的传统蜂窝网络; 在传统蜂窝网络上建立第二视频呼叫会话; 并且使用第二视频呼叫会话继续在传统蜂窝网络上的视频呼叫。

    OFFLOADING A VIDEO PORTION OF A VIDEO CALL
    42.
    发明申请
    OFFLOADING A VIDEO PORTION OF A VIDEO CALL 有权
    卸载视频电话的视频部分

    公开(公告)号：US20140176659A1

    公开(公告)日：2014-06-26

    申请号：US14109659

    申请日：2013-12-17

    Applicant: Apple Inc.

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

    IPC: H04N7/14 ,  H04W28/02

    CPC classification number: H04W76/16 ,  H04N7/147 ,  H04N7/148 ,  H04W28/0215 ,  H04W28/0252 ,  H04W28/08 ,  H04W76/34 ,  H04W84/12

    Abstract: A method for offloading a video portion of a video call form a cellular network to a WLAN is provided. The method can include a wireless communication device participating in a video call with a remote device over a connection between the wireless communication device and a cellular network. The video call can include a first video stream carried over a first bearer on the cellular network and an audio stream carried over a second bearer on the cellular network. The method can further include the wireless communication device establishing a connection between the wireless communication device and a WLAN; performing a call setup procedure with the remote device to establish a second video stream over the WLAN; terminating the first video stream; and using the second video stream and the audio stream to continue the video call.

    Abstract translation: 提供了将视频呼叫的视频部分从蜂窝网络卸载到WLAN的方法。 该方法可以包括通过无线通信设备和蜂窝网络之间的连接与远程设备参与视频呼叫的无线通信设备。 视频呼叫可以包括通过蜂窝网络上的第一承载携带的第一视频流和在蜂窝网络上的第二承载上承载的音频流。 该方法还可以包括无线通信设备建立无线通信设备与WLAN之间的连接; 与所述远程设备执行呼叫建立过程以在所述WLAN上建立第二视频流; 终止第一视频流; 并且使用第二视频流和音频流来继续视频通话。

    Outer Loop Link Adaptation for Device Resumption
    43.
    发明申请
    Outer Loop Link Adaptation for Device Resumption 审中-公开
    用于设备恢复的外环链路适配

    公开(公告)号：US20130310092A1

    公开(公告)日：2013-11-21

    申请号：US13663653

    申请日：2012-10-30

    Applicant: APPLE INC.

    Inventor： Tarik Tabet ,  Paul V. Flynn ,  Syed A. Mujtaba ,  Navid Damji ,  Zhu Ji ,  Sreevalsan Vallath

    IPC: H04B15/00 ,  H04W24/02

    CPC classification number: H04L1/0003 ,  Y02D50/10

    Abstract: Outer loop link adaptation for device resumption. A user equipment (UE) and base station (BS) may be in communication in a first network (e.g., an LTE network). Communication between the UE and the BS may be interrupted, e.g., due to a long fading environment, the UE tuning away to a second network (e.g., a CDMA network). Accordingly, the measured error rate may increase dramatically. After resumption from the interruption, a negative offset may be applied to a reported SINR value from the UE due to the previous increase in error rate. Upon improvement in the error rate, a larger, positive offset adjustment may be added to the negative offset, allowing the estimated SINR to return to reported SINR more quickly. Additionally, the error rate estimation may be adjusted to converge to a more recently measured more quickly by decreasing a feedback filter coefficient.

    Abstract translation: 用于设备恢复的外环链路自适应。 用户设备（UE）和基站（BS）可以在第一网络（例如，LTE网络）中进行通信。 UE和BS之间的通信可能被中断，例如由于漫长的衰落环境，UE调谐到第二网络（例如，CDMA网络）。 因此，测量的误码率可能会急剧增加。 在从中断恢复之后，由于错误率的先前增加，可能对来自UE的所报告的SINR值应用负偏移。 在改进误差率时，可以将更大的正偏移调整添加到负偏移，从而允许估计的SINR更快地返回到所报告的SINR。 此外，可以通过减小反馈滤波器系数来调整误差率估计以收敛到更近的测量更快。

    FLOW PRIORITIZATION
    44.
    发明申请
    FLOW PRIORITIZATION 有权

    公开(公告)号：US20250112869A1

    公开(公告)日：2025-04-03

    申请号：US18476781

    申请日：2023-09-28

    Applicant: Apple Inc.

    Inventor： Srinivasan Balasubramanian ,  Vijay Venkataraman ,  Srirang A. Lovlekar ,  Sreevalsan Vallath

    IPC: H04L47/32 ,  H04L47/24 ,  H04L47/6275

    Abstract: Systems, methods, devices, and circuitries are provided for downlink flow control. In one example, a method for a user equipment (UE) includes determining respective priorities of uplink (UL) feedback packets based on a respective UE-assigned priority of an application or data flow with which the respective UL feedback packet is associated; and selectively transmitting the respective UL feedback packets based on the respective UE-assigned priorities.

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