Local service handover
US6744753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Nov 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When a mobile wireless device is within the coverage area of a short range wireless access point, it sends a request for service to be obtained over the Internet from a network server. The short range wireless access point receives a response message over the Internet from the server, including a global/local parameter to notify the mobile wireless device whether the requested service is available outside the coverage area of the short range wireless access point. The access point forwards the response message to the mobile wireless device, which uses the information in the message to contact the server over the Internet. If the mobile wireless device detects that it has left the coverage area of the short range wireless access point while in contact with the server, it will determine whether the global/local parameter indicates that the service is global. If the parameter is global, then the mobile wireless device accesses a stored handover address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.