Key separation method and device
US8934914B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2013 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Feb 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A key separation method and device are provided in the embodiments of the present invention. The key separation method includes: when a User Equipment hands over from a source node to a target node, or when the User Equipment moves from the source node to the target node in idle state, determining whether or not the source node is a Home NodeB; and if the source node is a Home NodeB, triggering an Authentication and Key Agreement procedure according to the operator's policy, to update Ciphering Key and Integrity Key. By performing Authentication and Key Agreement procedure, the method and device of the embodiments separate key of the source node from the key of the target node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.