Interleaved cryptographic synchronization
US8306069B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0605
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to synchronization applied to a data stream structured as super-frames. Each block in a super-frame comprises a slow synchronization part and at least one traffic frame. The slow synchronization parts in the super-frame result at least from a decomposition of a synchronization management word. Additional synchronization parts similar to the slow synchronization parts and distributed in place of traffic frame bits in the super-frame are inserted in the super-frame. The invention provides for fast synchronization coexisting with a pre-existing slow synchronization without increasing the bandwidth. The invention is particularly applicable to cryptographic synchronization between fixed and/or mobile terminal equipments operating in interconnected dissimilar networks whose synchronization time constants differ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.