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:
May. 20, 2025
Filed:
May. 07, 2021
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Shu Guo, Beijing, CN;
Dawei Zhang, Saratoga, CA (US);
Fangli Xu, Beijing, CN;
Haijing Hu, Los Gatos, CA (US);
Huarui Liang, Beijing, CN;
Lanpeng Chen, Beijing, CN;
Xiaoyu Qiao, Beijing, CN;
Yuqin Chen, Beijing, CN;
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 12/041 (2021.01); H04W 4/06 (2009.01); H04W 12/0431 (2021.01);
U.S. Cl.
CPC ...
H04W 12/041 (2021.01); H04W 4/06 (2013.01); H04W 12/0431 (2021.01);
Abstract
A user equipment (UE) is configured to join a multicast broadcast service (MBS) session. The UE sends, to a network function, a protocol data unit (PDU) modification request comprising a request to join a multicast broadcast service (MBS) session, generates a first key (K), receives a PDU session modification complete message comprising an encrypted second key (K) and a key identification (KID) corresponding to the Kand decrypts the Kiss using the K.