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    VoLTE quality of service enhancement with preconditions
    2.
    发明授权
    VoLTE quality of service enhancement with preconditions 有权

    公开(公告)号：US10098021B2

    公开(公告)日：2018-10-09

    申请号：US14724567

    申请日：2015-05-28

    申请人： Apple Inc.

    发明人： Si Li ,  Deepak Chitlur Lakshman ,  Srinivasan Vasudevan

    IPC分类号： H04W24/04 ,  H04W28/02

    摘要： A wireless voice call may be established between an originating user equipment (UE) and a terminating UE, via a cellular network, using preconditions. The originating UE may transmit an invitation for a packet-switched wireless voice call, beginning a first period of time. The terminating UE may cancel the invitation in response to determining that a first precondition, such as establishment of a dedicated bearer between the originating UE and the cellular network, is not satisfied within the first period of time. The first period of time may be interrupted in response to determining that the first precondition is satisfied, and a second period of time may then begin. The cellular network may cancel the invitation in response to determining that a second precondition, such as establishment of a dedicated bearer between the terminating UE and the cellular network, is not satisfied within the second period of time.

    Methods and Apparatus for Improving Power Consumption in a Wireless Network
    5.
    发明申请
    Methods and Apparatus for Improving Power Consumption in a Wireless Network 审中-公开
    提高无线网络功耗的方法与装置

    公开(公告)号：US20170006549A1

    公开(公告)日：2017-01-05

    申请号：US15266476

    申请日：2016-09-15

    申请人： Apple Inc.

    发明人： Giri Prassad Deivasigamani ,  Gaurav Nukala ,  Srinivasan Vasudevan

    IPC分类号： H04W52/02 ,  H04W68/00 ,  H04W76/04

    CPC分类号： H04W52/0254 ,  H04M2250/10 ,  H04W52/0245 ,  H04W52/0251 ,  H04W52/028 ,  H04W68/005 ,  H04W76/27 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

    摘要： Methods and apparatus for power optimization in e.g., a wireless mobile device. In one embodiment, the optimization is effected via intelligent idle mode current drain management. In an exemplary LTE cellular network context, the user equipment (UE) only powers on its transceiver for a subset of Discontinuous Reception (DRX) cycles based on e.g., the quality of the radio environment, power considerations, location, etc. For example, if a UE has not moved, and its radio reception quality is good, the UE is likely to successfully receive a paging notification (i.e., without multiple attempts). Consequently, the UE configures itself to receive only a single paging indication.

    摘要翻译： 用于例如无线移动设备中的功率优化的方法和装置。 在一个实施例中，通过智能空闲模式电流漏极管理实现优化。 在示例性LTE蜂窝网络环境中，用户设备（UE）仅基于例如无线电环境的质量，功率因素，位置等来为其不连续接收（DRX）周期的子集为其收发机供电。例如， 如果UE没有移动，并且其无线电接收质量良好，则UE很可能成功地接收寻呼通知（即，没有多次尝试）。 因此，UE配置自身仅接收单个寻呼指示。

    Forced cell or radio access technology reselection responsive to network access barring
    8.
    发明授权
    Forced cell or radio access technology reselection responsive to network access barring 有权
    响应网络访问限制的强制小区或无线接入技术重新选择

    公开(公告)号：US08787835B2

    公开(公告)日：2014-07-22

    申请号：US13630496

    申请日：2012-09-28

    申请人： Apple Inc.

    发明人： Luciano M Verger ,  Srinivasan Vasudevan ,  Wen Zhao

    IPC分类号： H04W88/02

    CPC分类号： H04W48/18 ,  H04W48/02

    摘要： A method and apparatus for forced cell/RAT reselection is disclosed. In one embodiment, a cellular mobile communication device may attempt to access a network through a serving cell. Responsive to determining that access to the network is barred through the serving cell, the mobile communication device may determine if another cell is available through which it may obtain access to the network. If another cell providing network access is available, the mobile communication device may force reselection from the serving cell to the new cell. If no other cell providing access to the network is available to the mobile communication device, a forced reselection of a radio access technology may be performed.

    摘要翻译： 公开了一种用于强制小区/ RAT重选的方法和装置。 在一个实施例中，蜂窝移动通信设备可以尝试通过服务小区接入网络。 响应于确定通过服务小区对网络的访问被禁止，移动通信设备可以确定另一个小区是否可用，通过它可以获得对网络的访问。 如果提供网络访问的另一小区可用，则移动通信设备可以强制从服务小区到新小区的重新选择。 如果没有提供对网络的访问的其他小区可用于移动通信设备，则可以执行无线电接入技术的强制重选。

    Enhancing jitter buffer performance through radio level feedback
    10.
    发明授权
    Enhancing jitter buffer performance through radio level feedback 有权
    通过无线电级别反馈增强抖动缓冲区的性能

    公开(公告)号：US09554346B2

    公开(公告)日：2017-01-24

    申请号：US14821144

    申请日：2015-08-07

    申请人： Apple Inc.

    发明人： Luciano M. Verger ,  Madhusudan Chaudhary ,  Onur E. Tackin ,  Oren M. Elrad ,  Srinivasan Vasudevan ,  Thanigaivelu Elangovan ,  Tiange Shao

    IPC分类号： H04L1/00 ,  H04W56/00 ,  H04W36/08 ,  H04W36/00 ,  H04J3/06 ,  H04L1/20 ,  H04L29/06 ,  H04W36/14 ,  H04L29/08

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

    摘要： 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. Previously, the instantaneous jitter was derived from a weighted history of the media stream, and consequently only packets that had already been received were 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.

    摘要翻译： 在LTE语音接收机中的抖动缓冲器可能受来自本地和远端端点的无线电电平反馈（RLF）的影响，以预先考虑具有高概率发生的预测未来损耗的抖动缓冲器延迟。 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。 以前，瞬时抖动是从媒体流的加权历史得出的，因此只有已经接收到的数据包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，预期的延迟可能被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。