Method of ciphering data transmission in a radio system
US6882727B1 · kind B1 · utility
77Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Mar 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of ciphering data transmission in a radio system, and to a user equipment using the method, and to a radio network subsystem using the method. The method includes the steps of: (602) generating a ciphering key; (604A) producing a ciphering mask in a ciphering algorithm using the ciphering key as an input parameter; (604B) using a logical channel specific parameter or a transport channel specific parameter as an additional input parameter to the ciphering algorithm; and (606) producing ciphered data by applying the ciphering mask to plain data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.