发明授权
US08799459B2 Event-driven detection of device presence for layer 3 services using layer 2 discovery information
有权
使用第2层发现信息事件驱动检测第3层服务的设备状态
- 专利标题： Event-driven detection of device presence for layer 3 services using layer 2 discovery information
- 专利标题（中）： 使用第2层发现信息事件驱动检测第3层服务的设备状态
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申请号： US13230820申请日： 2011-09-12
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公开(公告)号： US08799459B2公开(公告)日： 2014-08-05
- 发明人: Amer A. Hassan , Mitesh K. Desai , Yatharth Gupta , Dattatraya B. Rajpure , Arunkumar Navasivasakthivelsamy , Jeffrey S C Chang , Mukund Sankaranarayan , Henrique M. A. Filgueiras
- 申请人： Amer A. Hassan , Mitesh K. Desai , Yatharth Gupta , Dattatraya B. Rajpure , Arunkumar Navasivasakthivelsamy , Jeffrey S C Chang , Mukund Sankaranarayan , Henrique M. A. Filgueiras
- 申请人地址： US WA Redmond
- 专利权人： Microsoft Corporation
- 当前专利权人： Microsoft Corporation
- 当前专利权人地址： US WA Redmond
- 代理商 Alin Corie; Mike Allen; Micky Minhas
- 主分类号： G06F15/173
- IPC分类号： G06F15/173
摘要：
Techniques for detecting presence of a remote device at Layer 2 in response to an indication of an attempt to use the device and without maintaining a Layer 3 connection to the device. The techniques allow reducing power consumption without compromising the device's availability. A device that pairs with a remote wireless device may establish a Layer 3 connection to the remote device to provide services to a user. The Layer 3 connection and underlying Layer 2 connection (e.g., WI-FI, WI-FI DIRECT™ or BLUETOOTH®) may be terminated when the Layer 3 connection is not actively used. Once use of the remote device is desired, its presence may be detected using a Layer 2 device discovery mechanism and the Layer 2 and Layer 3 connections to the device may be reestablished. Services provided at Layer 3, such as steaming data, may then be performed over the reestablished Layer 3 connection.
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