Devices and processing in a mobile radio communication network having calibration terminals
US6230018A · kind A · utility
151Cited by
18References
62Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | May 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.