Method for decrypting an encrypted packet within a wireless communication device, and corresponding device
US8913743B2 · kind B2 · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2010 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Nov 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method for decrypting, within a wireless communication device, a sequence of encrypted packets received via a wireless communication channel between the communication device and a cell assigned to this device, comprising for each packet the following steps: —the computation of an encrypting sequence corresponding to the packet (21); and —the decrypting of the packet with the aid of the said encrypting sequence (22). In this method, the encrypting sequences are computed before the reception of the packets while the reception quality is above a threshold (20, TH) and an indication of change of cell is not received (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.