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    ACTIVE COMMUNICATION SESSION HANDOVER BETWEEN DIRECT AND RELAYED CONNECTIONS
    1.
    发明申请
    ACTIVE COMMUNICATION SESSION HANDOVER BETWEEN DIRECT AND RELAYED CONNECTIONS 审中-公开
    直接和中继连接之间的主动通信会话切换

    公开(公告)号：WO2017044480A1

    公开(公告)日：2017-03-16

    申请号：PCT/US2016/050537

    申请日：2016-09-07

    Applicant: APPLE INC.

    Inventor： VERGER, Luciano M. ,  SINGH, Ajoy K. ,  GARRIDO, Christopher M. ,  ABDULRAHIMAN, Najeeb M. ,  JIN, Ming ,  NAIK, Anil G. ,  LAKSHMAN, Deepak Chitlur ,  VASUDEVAN, Srinivasan ,  BIDERMAN, David L. ,  CHANDOK, Gurtej Singh ,  MIAUTON, Patrick ,  ALLAMANCHE, Eric A.

    IPC: H04W76/04 ,  H04W76/02 ,  H04W24/08 ,  H04W88/04

    CPC classification number: H04L67/14 ,  H04L43/08 ,  H04L65/1083 ,  H04L65/80 ,  H04L67/148 ,  H04W36/14 ,  H04W36/26 ,  H04W76/23 ,  H04W84/12 ,  H04W88/04

    Abstract: Methods and apparatus to manage communication sessions to handover between a direct connection at a secondary wireless device and a relayed connection to the secondary wireless device via a primary wireless device. A connection manager of a secondary wireless device can trigger transfer of a communication session based on measurements of performance metrics for the communication session. Upon detection of performance degradation in a local connection or a backhaul connection or both, the connection manager of the secondary wireless device can determine proximity of and/or capabilities for connections of the primary wireless device and instigate transfer of the communication session between different connection types, such as between a direct connection and a relayed connection. The transfer of the communication session can occur without user intervention or in response to input from the user without interrupting or reestablishing the communication session.

    Abstract translation: 管理通信会话以在辅助无线设备的直接连接与通过主无线设备到辅助无线设备的中继连接之间切换的方法和设备。 辅助无线设备的连接管理器可以基于通信会话的性能度量的测量来触发通信会话的传送。 在检测到本地连接或回程连接或两者之间的性能下降时，辅助无线设备的连接管理器可以确定主无线设备的连接的接近度和/或能力，并且促使不同连接类型之间的通信会话的传送 ，例如在直接连接和中继连接之间。 通信会话的传送可以在没有用户干预的情况下进行，或者响应于用户的输入而不中断或重新建立通信会话。

    ENHANCING JITTER BUFFER PERFORMANCE THROUGH RADIO LEVEL FEEDBACK
    2.
    发明申请
    ENHANCING JITTER BUFFER PERFORMANCE THROUGH RADIO LEVEL FEEDBACK 审中-公开
    通过无线电级提高反馈来提高抖动性能

    公开(公告)号：WO2014197588A1

    公开(公告)日：2014-12-11

    申请号：PCT/US2014/040901

    申请日：2014-06-04

    Applicant: APPLE INC.

    Inventor： VERGER, Luciano M. ,  CHAUDHARY, Madhusudan ,  TACKIN, Onur ,  ELRAD, Oren M. ,  VASUDEVAN, Srinivasan ,  ELANGOVAN, Thanigaivelu ,  SHAO, Tiange

    IPC: H04J3/06 ,  H04W36/14 ,  H04L1/20 ,  H04L29/06

    CPC classification number: H04W56/003 ,  H04J3/0632 ,  H04L1/203 ,  H04L1/205 ,  H04L29/06027 ,  H04L65/80 ,  H04L67/322 ,  H04W36/0022 ,  H04W36/0072 ,  H04W36/0088 ,  H04W36/08 ,  H04W36/14

    Abstract: A jitter buffer in a Voice over LTE receiver may be influenced by radio level feedback (RLF) from both local and remote endpoints to preemptively adjust the jitter buffer delay in anticipation of predicted future losses that have a high probability of occurring. The radio events of the RLF and the scenarios that trigger the preemptive adjustments may be identified, and their use may be expressed in terms of mathematical formulas. In prior art designs, the instantaneous jitter is derived from a weighted history of the media stream, and consequently only packets that have already arrived are used to compute the instantaneous jitter to adjust the length of the buffer. By providing and using RLF from both local and remote endpoints, the anticipated delay - for packets that have not yet arrived - may be used to preemptively adjust the buffer, thereby minimizing packet loss without introducing unnecessary delay.

    Abstract translation: 在LTE语音接收机中的抖动缓冲器可能受到来自本地和远端端点的无线电级别反馈（RLF）的影响，以预先调整抖动缓冲器延迟以预期具有高概率发生的预测未来损失。 可以识别RLF的无线电事件和触发抢先调整的场景，并且可以用数学公式来表示它们的使用。 在现有技术的设计中，瞬时抖动是从媒体流的加权历史导出的，因此只有已经到达的分组被用于计算瞬时抖动以调整缓冲器的长度。 通过从本地端点和远端端点提供和使用RLF，对于尚未到达的数据包来说，预期的延迟可能用于抢先调整缓冲区，从而最大限度地减少数据包丢失而不引入不必要的延迟。

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