The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2016
Filed:
Jun. 08, 2011
Chengyan Feng, Shenzhen, CN;
LU Gan, Shenzhen, CN;
Chengyan Feng, Shenzhen, CN;
Lu Gan, Shenzhen, CN;
ZTE CORPORATION, Shenzhen, CN;
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 S); the core network node uses the key parameter to calculate a next hop enhanced key (Step S); and then the core network node sends the next hop enhanced key to the target RNC (Step S). Through the disclosure, the forward security of the user is guaranteed, and thus the communication security of the radio access system is improved.