Reducing power consumption in connected mode discontinuous reception
    3.
    发明授权
    Reducing power consumption in connected mode discontinuous reception 有权
    降低连接模式下的功耗不连续接收

    公开(公告)号:US09414315B2

    公开(公告)日:2016-08-09

    申请号:US14173478

    申请日:2014-02-05

    Applicant: Apple Inc.

    Abstract: A method for reducing power consumption in connected mode discontinuous reception is disclosed. The method can include a wireless communication device sending a transmission for a pending HARQ retransmission process and receiving an ACK for the transmission. The method can further include the wireless communication device determining a subset of remaining uplink transmission opportunities in the pending HARQ retransmission process to monitor for an uplink grant in response to receiving the ACK and monitoring the subset of remaining uplink transmission opportunities for an uplink grant. The method can additionally include the wireless communication device entering a sleep state for any uplink transmission opportunities remaining in the pending HARQ retransmission process after monitoring the subset of remaining uplink transmission opportunities in an instance in which an uplink grant for the pending HARQ retransmission process is not received for any of the subset of remaining uplink transmission opportunities.

    Abstract translation: 公开了一种用于降低连接模式不连续接收中的功耗的方法。 该方法可以包括无线通信设备发送用于待决HARQ重传过程的传输并且接收用于传输的ACK。 该方法还可以包括无线通信设备确定待决HARQ重传过程中的剩余上行链路传输机会的子集,以响应于接收到该ACK并监视用于上行链路授权的剩余上行链路传输机会的子集来监视上行链路许可。 该方法可以另外包括无线通信设备进入睡眠状态,用于在未决的HARQ重传过程中保持的任何上行链路传输机会之后监视剩余上行链路传输机会的子集,其中用于未决HARQ重传过程的上行链路许可不在 接收到剩余上行链路传输机会的任何子集。

    VIDEO PLAYBACK BUFFER ADJUSTMENT
    5.
    发明申请

    公开(公告)号:US20210398563A1

    公开(公告)日:2021-12-23

    申请号:US17349733

    申请日:2021-06-16

    Applicant: Apple Inc.

    Abstract: A video playback buffer adjustment system is disclosed. The video playback buffer has a target size, measured in units of time of content, and includes a compressed frames queue and an uncompressed frames queue. The uncompressed frames queue has a minimum threshold queue size. If the size of the uncompressed frames queue falls below the minimum threshold size, then a next encoded frame in the compressed frames queue is removed from the compressed frames queue, decoded, and enqueued in the uncompressed frames queue. If a current size of the playback queue exceeds the target size plus Δ (a hysteresis value), then a playback frame rate is increased, and a presentation time of one or more frames in the uncompressed frames queue is adjusted according to the increased playback frame rate. If the playback queue size is less than the target size minus Δ, the playback speed can be reduced.

    Apparatus, systems and methods for improved link quality evaluation of mobile cellular systems
    6.
    发明授权
    Apparatus, systems and methods for improved link quality evaluation of mobile cellular systems 有权
    用于改进移动蜂窝系统的链路质量评估的装置,系统和方法

    公开(公告)号:US09596638B2

    公开(公告)日:2017-03-14

    申请号:US14871493

    申请日:2015-09-30

    Applicant: APPLE INC.

    Abstract: Apparatus, system and methods for evaluating link quality within a cellular system. A user equipment (“UE”) is connected to a network, wherein the UE communicates data to the network on an uplink (“UL”) link. The UE determines a requested buffer size for a UL communication, determines a transport block size for the UL communication based on a primary set of allocation parameters, and compares the requested buffer size to the transport block size to determine if a data rate for the UL communication satisfies a threshold. When the data rate satisfies the threshold, the UE identifies the UL link as a good quality link and sends acceptable link quality feedback to the network. When the data rate does not satisfy the threshold, the UE performs a further action to test a quality of the UL link.

    Abstract translation: 用于评估蜂窝系统内的链路质量的装置,系统和方法。 用户设备(“UE”)连接到网络,其中UE在上行链路(“UL”)链路上向网络传送数据。 UE确定用于UL通信的所请求的缓冲器大小,基于一组分配参数确定用于UL通信的传输块大小,并将所请求的缓冲器大小与传输块大小进行比较,以确定UL的数据速率 通信满足阈值。 当数据速率满足阈值时,UE将UL链路识别为良好的质量链路,并向网络发送可接受的链路质量反馈。 当数据速率不满足阈值时,UE执行进一步的动作来测试UL链路的质量。

    ENHANCING JITTER BUFFER PERFORMANCE THROUGH RADIO LEVEL FEEDBACK
    8.
    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:US20150351060A1

    公开(公告)日:2015-12-03

    申请号:US14821144

    申请日:2015-08-07

    Applicant: Apple Inc.

    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. 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.

    Abstract translation: 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。

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