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1. 发明授权

US08010821B2 Systems and methods for wake on event in a network 有权
标题翻译：在网络中唤醒事件的系统和方法
公开(公告)号：US08010821B2
公开(公告)日：2011-08-30
申请号：US11901928
申请日：2007-09-19
申请人： Jim Edwards , John C Weast , Gunner D Danneels
发明人： Jim Edwards , John C Weast , Gunner D Danneels
IPC分类号： G06F1/00
CPC分类号： H04L12/12 , G06F1/3209 , G06F9/5027 , G06F9/5094 , Y02D10/22
摘要： Embodiments include systems and methods for allowing a host CPU to sleep while service presence packets and responses to search requests are sent by an alternate processor. While the CPU is in a low power state, the alternate processor monitors the network for incoming request packets. Also, while the CPU is asleep, the alternate processor periodically may transmit presence packets, announcing the presence of a service available from the host system of the CPU. In one embodiment, the alternate processor is a low power processor. If a search request is received when the CPU is in a low power state, the alternate processor responds to the search request according to whether the PC provides that service. If a service request is received, then the ME wakes the CPU of the PC to provide the requested service. In the wireless case, when the CPU is asleep, portions of the wireless upper MAC are implemented by the ME. When the CPU is awake the wireless upper MAC is implemented in the CPU. Thus, embodiments enable the PC to appear available to wireless devices when the CPU is asleep.
摘要翻译：实施例包括用于允许主机CPU睡眠的系统和方法，而服务存在分组和对搜索请求的响应由备用处理器发送。当CPU处于低功耗状态时，备用处理器监视网络中的传入请求数据包。此外，当CPU处于睡眠状态时，备用处理器周期性地可以传送存在分组，通知存在可从CPU的主机系统获得的服务。在一个实施例中，替代处理器是低功率处理器。如果在CPU处于低功率状态时接收到搜索请求，则备用处理器根据PC是否提供该服务来响应搜索请求。如果接收到服务请求，则ME唤醒PC的CPU以提供所请求的服务。在无线情况下，当CPU处于睡眠状态时，无线上MAC的部分由ME实现。当CPU唤醒时，CPU中实现无线上MAC。因此，当CPU处于睡眠状态时，实施例使PC能够显示对无线设备的可用性。

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