Signalling method
US6741860B1 · kind B1 · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Aug 23, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention concerns control of connections in cellular telecommunication systems, particularly setting up and releasing of connections. According to the invention, during setting up of a new MM connection it is checked whether an RRC connection is already active. If an RRC connection is already active, explicit signalling is used. Otherwise, RRC level events can be used to implicity control MM level events. During releasing of MM connections, it is checked if another MM protocol uses RRC connections, and if that is the case, the releasing of MM connections is signalled explicitly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.