Patent · US Active

Method for updating air interface key, core network node and user equipment

US9386448B2 · kind B2 · utility

1Cited by

0References

17Claims

0Family size

Assignee

ZTE CORPORATION · CN

Inventors

Chengyan Feng · Lo Wu, CN
Lu Gan · Lo Wu, CN

Key dates

Filing date	Jun 8, 2011
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Sep 13, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04W36/10
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The disclosure provides a method for updating an air interface key, a core network node and user equipment. The update method comprises: a core network node receives a relocation indication message, wherein the relocation indication message is configured to indicate that the User Equipment (UE) is about to relocate to a target Radio Network Controller (RNC) from a source RNC (Step S602); the core network node uses the key parameter to calculate a next hop enhanced key (Step S604); and then the core network node sends the next hop enhanced key to the target RNC (Step S606). Through the disclosure, the forward security of the user is guaranteed, and thus the communication security of the radio access system is improved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.