Services aredistinguished into categories defined in [7]; also the categorisation of cellsaccording to services they can offer is provided in [7]. - Normal Service. A UE camped on a suitable cell can obtain normal service from the selected PLMN.
Android中,申请WakeLock可以让你的进程持续执行即使手机进入睡眠模式,比较实用的是比如后台有网络功能,可以保证操作持续进行. 需要权限 <uses-permission android:name="android.permission.WAKE_LOCK"/> API Flag Value CPU Screen Keyboard PARTIAL_WAKE_LOCK On* Off Off SCREEN_DIM_WAKE_LOCK On Dim Off SCREE
https://hceng.cn/2018/01/18/Linux%E7%94%B5%E6%BA%90%E7%AE%A1%E7%90%86/ 1.1系统睡眠模型Suspend On (on) S0 - WorkingStandby (standby) S1 - CPU and RAM are powered but not executedSuspend to RAM (mem) S3 - RAM is powered and the running content is saved to RA
我们平时对电脑的的待机.休眠.睡眠等等都属于ACPI表示高级配置和电源管理接口(Advanced Configuration and Power Management Interface)范畴. ACPI状态有:S0.S1.S2.S3.S4.S5.G3 S0:电脑正常工作,所有硬件设备全部处于打开或正常工作状态 S1:也成为POS(Power on Suspend,CPU停止工作),其他硬件设备仍然正常工作: S2:CPU关闭,但其余的硬件设备仍然正常工作,与S1几乎一样: S3:也称为STR(