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:
Apr. 06, 2021
Filed:
Aug. 27, 2015
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Shuiping Long, Beijing, CN;
Chan Wang, Shenzhen, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04W 12/00 (2021.01); H04W 12/04 (2021.01); H04L 12/50 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04M 3/20 (2006.01);
U.S. Cl.
CPC ...
H04L 63/04 (2013.01); H04L 9/0841 (2013.01); H04L 9/3273 (2013.01); H04L 12/50 (2013.01); H04L 63/06 (2013.01); H04M 3/205 (2013.01); H04W 12/001 (2019.01); H04W 12/0401 (2019.01);
Abstract
A method and a corresponding terminal for an encrypted call, to resolve disadvantages of an encrypted call that is implemented relying on a key management center (KMC) and network reconstruction, and reduce costs. The method includes establishing, by a first terminal, a circuit switched call with a second terminal, determining, by the first terminal using the circuit switched call, a key for performing an encrypted call with the second terminal, and performing, by the first terminal, an encrypted call with the second terminal using the key.