Passive probing for handover in a local area network
US7936725B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Apr 13, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A WLAN (108) includes a first access point (104) for providing wireless service within a first coverage area, a second access point (106) for providing wireless service within a second coverage area and programmed to transmit probe responses, and a wireless communications unit (102) located within the first coverage area and operating on the wireless service of the first access point (104). The communications unit (102) is programmed to monitor, or passively probe, for the probe responses, or is instructed by the first access point (104) on when to monitor for the probe responses, transmitted by the second access point (106). By executing such passive probing, the communications unit (102) may make handover decisions for switching between the wireless service of the first access point (104) to the wireless service of the second access point (106) based on access point data included in the probe responses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.