Recovery from aborted integrity protection change
US8897750B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2013 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/205
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, in a wireless communications device, comprising: receiving a new security mode configuration from a radio access network that is to replace an original security mode configuration as part of a security procedure; detecting, prior to completion of said security procedure, that a cell update message is to be sent to the network; transmitting a first cell update message to the network in accordance with the original security mode configuration; transmitting a second cell update message to the network in accordance with the new security mode configuration; receiving a cell update confirm message, the cell update confirm message sent by the network in accordance with a network determined security mode configuration; ascertaining if the network determined security mode configuration is either the original or new security mode configuration; and completing the cell update procedure in accordance with the ascertained security mode configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.