Patent · US Active

Method for updating air interface key, core network node and radio access system

US8938071B2 · 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	Mar 9, 2011
Grant date	Jan 20, 2015
Priority date	—
Expiry date	Mar 9, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04W36/0038
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The disclosure discloses a method for updating an air interface key, a core network node and a radio access system, wherein the method for updating an air interface key comprises: a core network node receives a relocation complete indication message from a target RNC (S502), the relocation complete indication message is configured to indicate the successful relocation of User Equipment (UE) from a source RNC to the target RNC; the core network node uses the saved traditional key and the current enhanced key to calculate a next hop enhanced key (S504); the core network node sends the next hop enhanced key to the target RNC (S506). Through the disclosure, the forward security of users is guaranteed effectively, thus the communication security of the radio access system is improved overall.

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