发明名称 |
Monitoring changeable locations of client devices in wireless networks |
摘要 |
Security of wireless networks is improved by rejecting traffic from a wireless device located outside a defined spatial boundary. The device's spatial position with respect to the boundary is determined using directional antenna arrays on a plurality of measurement points, and calculating where the vectors intersect. Having thus determined a device's location, access to a wireless network can be denied if the device is outside a predetermined spatial boundary. Or, the device's location inside or outside of the spatial boundary can be used for monitoring a changeable location of one or more client devices in a wireless network, for example as a theft detection or theft deterrent mechanism.
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申请公布号 |
US2004203908(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20020334263 |
申请日期 |
2002.12.31 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HIND JOHN R.;STOCKTON MARCIA L. |
分类号 |
H04L12/28;H04W64/00;(IPC1-7):H04Q7/20 |
主分类号 |
H04L12/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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