Method for performing authenticated handover in a wireless local area network
US7236477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2005 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless local area network system (100) supporting mobile radio telephony reduces the time to complete an authenticated handover from one access point (104) to another (108) by a mobile station (102) by performing some of the steps normally performed upon leaving one access point while still associated with that access point. More particularly, the mobile station causes a cryptographic key (204) to be preestablished (212) for use when handing over to a new access point. The cryptographic key is derived at the mobile station, and is also derived in the WLAN infrastructure and stored until the mobile station initiates a handover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.