公开(公告)号：US20140098727A1

公开(公告)日：2014-04-10

申请号：US13941218

申请日：2013-07-12

Applicant: Apple Inc.

Inventor： Anthony D. Murabito ,  Dmitry Halavin ,  Naresh Kumar Chinnathambi Kailasam

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/0277 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: Methods and apparatus for signaling during a low power state. Wireless devices that are operating in “sleep” modes may be kicked off wireless local area network (WLAN) networks due to inactivity. Consequently, in one regard, a client device is disclosed that programs its firmware to periodically transmit “keep-alive” messages. In one exemplary variant, the keep-alive message is a unicast address resolution protocol (ARP) message that is addressed to the network gateway. This keep-alive ARP prevents the device from being kicked off the network, which reduces wake up times, yet still permits low power operation, thereby conserving device power and enhancing user experience.

Abstract translation: 在低功率状态下进行信令的方法和装置。 以“睡眠”模式运行的无线设备可能由于不活动而被无线局域网（WLAN）网络所启动。 因此，在一方面，公开了一种客户端设备，其编程其固件以周期性地发送“保持活动”消息。 在一个示例性变型中，保持活动消息是寻址到网络网关的单播地址解析协议（ARP）消息。 这种保持活动ARP防止设备从网络上踢出，这减少了唤醒时间，但仍然允许低功耗操作，从而节省设备功率并增强用户体验。