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. 08, 2026
Filed:
Jan. 29, 2022
Applicant:
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Inventors:
Haoran Liang, Beijing, CN;
Wei Lu, Beijing, CN;
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 12/106 (2021.01); H04W 12/037 (2021.01);
U.S. Cl.
CPC ...
H04W 12/106 (2021.01); H04W 12/037 (2021.01);
Abstract
A UE discovery message protection method, includes: when a first UE is located outside network coverage, monitoring a first announcement message, where the first announcement message includes: a discovery message, which is encrypted on the basis of a discovery key, and an LTK ID, which indicates a LTK; and determining the discovery key on the basis of the LTK corresponding to the LTK ID, where the LTK is received when the first UE is within the network coverage.