Geolocation estimation method for CDMA terminals based on pilot strength measurements
US6263208A · kind A · utility
120Cited by
9References
21Claims
0Family size
Assignee
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Key dates
| Filing date | May 28, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/02524
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The location of a mobile unit in the service area of a CDMA wireless communications system is determined by a location probability distribution procedure that is based entirely on analytical results derived from an integrated model of the wireless communications system, its RF environment and attribute measurement. The mobile unit measures and reports attribute values of pilot signal strength of all pilot signals visible to the mobile unit at its present location, whereupon a location probability distribution is computed based on a Bayesian probability algorithm including a set of stored model parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.