Message delivery in mobile networks
US8195755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jan 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/184
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When a device is switched off, all messages for that device are stored in different distributed service centers. For example, the message from user A may be stored in SMSC A and a message from user B in SMSC B where both subscribers and respective SMSCs can even belong to different networks. When the device is switched on again it notifies its presence to the network (performed by the MSC indicating this to the HLR). As a result of this alert, different service centers that have messages pending for that device will be notified that the device has come on-line again (performed by the HLR notifying SMSC A and SMSC B). Instead of directly sending out all messages, as in the prior art, each service center instead schedules the messages in an internal queue for delivery according to a local control scheme, which achieves synchronized delivery from multiple distributed SMSCs even though there is no centralised control. Each service center maps the ‘age’ of the message on its time axis as the time-to-deliver the message to the device. The deliveries are then sent out according to the derived schedule. As independent service centers all will base their decisions on the same length of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.