Invention Grant
US07672264B2 Method of pausing keep-alive messages and roaming for virtual private networks on handheld devices to save battery power
失效
在手持设备上暂停保持活动消息和漫游虚拟专用网络以节省电池电量的方法
- Patent Title: Method of pausing keep-alive messages and roaming for virtual private networks on handheld devices to save battery power
- Patent Title (中): 在手持设备上暂停保持活动消息和漫游虚拟专用网络以节省电池电量的方法
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Application No.: US11425412Application Date: 2006-06-21
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Publication No.: US07672264B2Publication Date: 2010-03-02
- Inventor: Stephen W. Babin
- Applicant: Stephen W. Babin
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Justin M. Dillon; Gregory K. Goshorn; Greg Goshorn, P.C.
- Main IPC: H04B1/38
- IPC: H04B1/38
Abstract:
Provided is a method for maintaining a connection between a mobile device and a server over a wireless network in a manner that conserves the power supply of the mobile device. The claimed subject matter addresses the transmission of regular “keep-alive” packets to refresh a network address translation (NAT) server and the scanning for and connecting to faster, higher priority network connections. A configurable parameter, or power timeout, specifies an idle time. When a period of time equal to the parameter has passed with no traffic between the mobile device and the server, in either direction, periodic roaming scans and keep-alive messages are halted. As soon as traffic is resumed through the tunnel, the mobile device roams to the highest priority connection and roaming scans and keep-alive messages are resumed.
Public/Granted literature
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