Security mode configuration procedures in wireless devices
US9179309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/305
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of detecting an error in a security mode configuration procedure conducted at a radio access network is provided. A cell update message is transmitted which causes the radio access network to abort a security mode configuration procedure. After the transmission of an update message, a new security mode configuration is received and the original security mode configuration is replaced with a new security mode configuration. A security mode configuration check is performed on a received downlink message using the new security mode configuration. If the security mode configuration check fails, a further security mode configuration check is performed on the downlink message to detect an error in the security mode configuration procedure. If it is determined there has been an error in the security mode configuration procedure, security mode configuration checks are performed on further downlink messages received from the network using the original security mode configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.