发明授权
US09173181B1 Adapter that converts precision time protocol (PTP) to global positioning system (GPS)
有权
将精确时间协议（PTP）转换为全球定位系统（GPS）的适配器
- 专利标题： Adapter that converts precision time protocol (PTP) to global positioning system (GPS)
- 专利标题（中）： 将精确时间协议（PTP）转换为全球定位系统（GPS）的适配器
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申请号： US13949992申请日： 2013-07-24
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公开(公告)号： US09173181B1公开(公告)日： 2015-10-27
- 发明人: Timothy Hugh Pearson , Seng Gan , Henry Burford , Eric C. English
- 申请人： Sprint Communications Company L.P.
- 申请人地址： US KS Overland Park
- 专利权人： Sprint Communications Company L.P.
- 当前专利权人： Sprint Communications Company L.P.
- 当前专利权人地址： US KS Overland Park
- 主分类号： H04B7/14
- IPC分类号： H04B7/14 ; H04W56/00
摘要：
A method and apparatus are provided for converting a precision time protocol (PTP) to a GPS signal. Enterprise versions of Femtocells are located within buildings and do not have access to a GPS signal directly from a GPS satellite. An adapter is provided that takes an available PTP and power over Ethernet (PoE) flow and converts the signal into a pseudo-GPS signal that acts as a timing input into the Femtocell. The pseudo-GPS signal is a GPS signal modulated at the L1 band frequency or 1575.42 megahertz, but does not have location data nor subframes 1, 2, or 3, as found in an ordinary GPS signal.
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