Wireless positioning approach using time delay estimates of multipath components
US7519136B2 · kind B2 · utility
17Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless positioning apparatus includes a multipath delay estimator configured to estimate multipath delay components from one or more received signals; a selector configured to select appropriate delay estimates from the estimated multipath delay components according to a predetermined criterion; a storage configured to store an NLOS delay function defining prior statistics of information about non-line-of-sight delays; and a position estimator configured to estimate a position of a mobile station based on the selected delay estimates and the NLOS delay function read out from the storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.