发明名称 |
Devices and processing in a mobile radio communication network having calibration terminals |
摘要 |
In a mobile communication network, the accuracy of location determinations for mobiles based on TDOA measurements made by the mobiles is increased by measuring the TDOA of signals from base station pairs at a known location and generating correction factors for compensating timing and propagation errors in TDOA measurements made by the mobiles. Calibration terminals may be provided for measuring TDOAs at known locations. System processes and elements for applying data generated by calibration terminals are disclosed.
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申请公布号 |
US6230018(B1) |
申请公布日期 |
2001.05.08 |
申请号 |
US19980078500 |
申请日期 |
1998.05.14 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
WATTERS J. MICHAEL;STRAWCZYNSKI LEO;STEER DAVID |
分类号 |
G01S1/02;G01S5/02;G01S5/10;G01S19/09;G01S19/46;H04W64/00;(IPC1-7):H04Q7/20 |
主分类号 |
G01S1/02 |
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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