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US09131445B2 Low power mode exit latency predictor for real-time asymmetric multiprocessor systems 有权
用于实时非对称多处理器系统的低功耗模式退出延迟预测器

  • Patent Title: Low power mode exit latency predictor for real-time asymmetric multiprocessor systems
  • Patent Title (中): 用于实时非对称多处理器系统的低功耗模式退出延迟预测器
  • Application No.: US13894704
    Application Date: 2013-05-15
  • Publication No.: US09131445B2
    Publication Date: 2015-09-08
  • Inventor: Greg Heinrich , Robert Riglar
  • Applicant: Nvidia Corporation
  • Applicant Address: US CA Santa Clara
  • Assignee: NVIDIA CORPORATION
  • Current Assignee: NVIDIA CORPORATION
  • Current Assignee Address: US CA Santa Clara
  • Main IPC: H04W4/00
  • IPC: H04W4/00 ;  H04W52/02
Low power mode exit latency predictor for real-time asymmetric multiprocessor systems
Abstract:
In an aspect there is provided a method of moving a processor of a mobile device from a low-power state for conserving power to an active mode for processing signals. The mobile device is configured to receive regularly scheduled signals. The method comprises, for each of multiple operating states of the mobile device determining a restore time associated with the operating state of the mobile device and storing each determined restore time in association with its operating state. The method further comprises detecting a current operating state of the mobile device and using the determined restore time for that state to set a trigger time to control movement of the processor of the mobile device to enter the active mode from the low-power mode in time to process the scheduled signals.
Abstract(Chinese):

在一方面，提供了一种将移动设备的处理器从低功率状态移动以将功率节省到用于处理信号的活动模式的方法。 移动设备被配置为接收定时调度的信号。 该方法包括针对移动设备的多个操作状态中的每一个确定与移动设备的操作状态相关联的恢复时间，并且与其操作状态相关联地存储每个确定的恢复时间。 该方法还包括检测移动设备的当前操作状态并且使用所确定的恢复时间来设置触发时间，以控制移动设备的处理器从低功率模式中进入活动模式的时间 处理调度信号。

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