Minimizing handoffs and handoff times in wireless local area networks
US7397779B2 · kind B2 · utility
13Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2004 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Jun 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for reducing the number of channels that are scanned during a handoff situation for a wireless endpoint station in a wireless local area network (WLAN), such as an IEEE 802.11 network, by tracking past user movements within the WLAN. A suitable sequence of channels to be scanned is generated so that reduce the number of handoffs are reduced and the average time during a handoff is reduced. To reduce handoffs and handoff latencies, the principle of locality (user movement patterns tend to be repetitive) is used. By tracking the past handoffs, future handoffs are predicted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.