发明名称 |
NETWORK-CENTRIC DETERMINATION OF NODE PROCESSING DELAY |
摘要 |
Apparatus and methods are directed to calibrating a delay within a wireless access point for determining a position of a mobile station. One method includes receiving an initial packet at an eavesdropping device, receiving a response packet, sent by another entity, at the eavesdropping device, computing a time difference based upon the packet arrival times, and providing the time difference to a position determination entity. Another method includes providing a request to appropriate eavesdropping devices to send information, receiving, from each appropriate eavesdropping device, a time difference which represents a difference in a time of arrival of a packet transmitted by the wireless access point and a time of arrival of a packet transmitted by the mobile station, determining a processing delay estimate based upon the time differences, and determining a position of the mobile station based upon the processing delay estimate and the received time differences. |
申请公布号 |
WO2010059936(A3) |
申请公布日期 |
2010.07.15 |
申请号 |
WO2009US65325 |
申请日期 |
2009.11.20 |
申请人 |
QUALCOMM INCORPORATED;AGGARWAL, ALOK;NAGUIB, AYMAN, FAWZY;SRIDHARA, VINAY |
发明人 |
AGGARWAL, ALOK;NAGUIB, AYMAN, FAWZY;SRIDHARA, VINAY |
分类号 |
G01S5/02;G01S5/06 |
主分类号 |
G01S5/02 |
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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