Method for providing call processing service in traffic congestion state
US7082309B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2004 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Mar 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for providing a call processing service wherein a short message can be transmitted to another party using a signaling channel in cases where a traffic channel cannot be allocated (for example, in traffic congestion state). The method comprises allowing a mobile switching center to transmit a call proceeding signal to a mobile station of a calling subscriber through a radio network controller, allowing the mobile switching center and the radio network controller to carry out a resource reservation therebetween, allowing the mobile switching center to make reserved resources available and then transmit a facility signal to the mobile station, the facility signal including information about a cause of a call failure, and allowing the mobile station to receive the facility signal and then display the information about the cause of the call failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.