Satellite delivery of short message service (SMS) messages
US6223045A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W68/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of sending a short message service (SMS) message to a mobile station operating within a Global System for Mobile Communications (GSM) radio telecommunications network which utilizes a satellite air interface link. A paging server is implemented in the network and interfaced with a mobile switching center/visitor location register (MSC/VLR) serving the mobile station. When a SMS service center receives a mobile-terminating SMS message, it sends the message to the paging server. The paging server stores a copy of the message and sends the message from the paging server to the MSC/VLR. The MSC/VLR makes a first attempt to deliver the message to the mobile station via the satellite air interface radio link. If the SMS service center times out before receiving an acknowledgment that the message was delivered, the service center sends the message to the paging server a second time. Upon receipt, the paging server determines whether the message received the second time has already been sent to the MSC/VLR. If so, the paging server discards the message received the second time. If the message received the second time is a new message, the paging server forwards the message to the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.