Optimized cooperation between resource list servers and presence servers
US8332516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/043
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, system and computer program product for optimized cooperation between resource list servers and presence servers. The method including receiving a subscription request from a watcher, where the subscription request identifies a resource list and is a request to receive presence information regarding each of a plurality of presentities listed on the resource list, and generating a subscription request to a presence server for presence information regarding any presentity listed on the resource list only if no other currently-active subscription request is known by the resource list server to exist for presence information regarding the presentity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.