Short message queuing mechanism
US6463291B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of processing such a short message arriving at a mobile switching center of a cellular radio network which arrives at the same time as a preceding short message is being sent from the mobile switching center of a B-subscriber. In addition, the invention relates to a mobile switching center of a cellular radio system implementing the method. When a short message addressed to a B-subscriber arrives at a mobile switching center at the same time as previously arrived short messages are being sent to the B-subscriber, then the exchange stores the newest short message in a queue. A problem arises when the total delay of the queue is longer than the maximum time, defined by time supervision, used on a connection between the exchange and a service center. To avoid exceeding the time supervision, the total delay of an incoming short message is estimated, the total delay comprising a queuing time resulting from the preceding short messages and the actual transmission time of said short message. If the total delay is longer than the maximum time, the incoming short message is not stored in a queue, but a negative acknowledgement is sent to the service center,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.