Base station initiated proximity service discovery and connection establishment
US7974574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Dec 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The normal roles of wireless stations and wireless access points in initiating the establishment of wireless connections may be reversed without the need for changes in the network interfaces for either the station or access point device. This capability may be used to allow wireless devices acting as access points, but on which service clients operate, to initiate the establishment of a connection with a station, on which a wireless service provider operates. Discovery of services between wireless devices can be provided prior to establishing a connection between the devices. A service client device providing access point functionality may broadcast an invitation for service advertisements and then receive service advertisements from relevant service providers acting as wireless stations. An information element may be included as part of periodically broadcast administrative messages to wirelessly convey an invitation for service advertisements. In response to a service advertisement, the access point may send to the wireless station an invitation to connect, prompting the wireless station to begin to establish a connection according to a wireless communication protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.