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:
Sep. 01, 2015
Filed:
Nov. 02, 2012
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Min Huang, Shenzhen, CN;
Jing Chen, Shenzhen, CN;
Aiqin Zhang, Shenzhen, CN;
Xiaohan Liu, Shenzhen, CN;
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/08 (2009.01); H04W 12/04 (2009.01); H04W 36/00 (2009.01);
U.S. Cl.
CPC ...
H04W 36/08 (2013.01); H04W 12/04 (2013.01); H04W 36/0038 (2013.01);
Abstract
A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells under control of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided.