System and method for position detection of a terminal in a network
US7345630B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a position detection system for detecting a position of a terminal apparatus of a radio communications system, a position detection time is shortened using a position detection method for determining signal times-of-arrival between the terminal apparatus and base stations neighboring the terminal apparatus. According to the present invention, means for generating a database in which received power information about signals transferred between the terminal apparatus and the base stations neighboring the terminal apparatus corresponds to position information about the terminal apparatus, and for determining the position information by searching received power information obtained in the position detection from the database, and means for determining the position by use of signal times-of-arrival are executed in parallel. Then, the use of a result of the means which has detected the position earlier than another means shortens the position detection time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.