Methods and systems for providing enhanced position location in wireless communications
US7893873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Sep 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.