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. 14, 2026
Filed:
Jul. 21, 2023
Zte Corporation, Shenzhen, CN;
Shilin You, Shenzhen, CN;
Jiyan Cai, Shenzhen, CN;
Jinguo Zhu, Shenzhen, CN;
Yuze Liu, Shenzhen, CN;
He Huang, Shenzhen, CN;
Shuang Liang, Shenzhen, CN;
Xingyue Zhou, Shenzhen, CN;
Jin Peng, Shenzhen, CN;
Zhen Xing, Shenzhen, CN;
Zhaoji Lin, Shenzhen, CN;
ZTE CORPORATION, Shenzhen, CN;
Abstract
This disclosure generally relates performing UE authentication and registration with the core network, and in particular, to supporting secure interactions between the UE and the target AMF when the UE is re-allocated to the target AMF. During a UE registration procedure, the initial AMF generate a 5G-GUTI for the UE and retrieves a candidate AMF list. The initial AMF sends the generated 5G-GUTI (or 5G-S-TMSI), the candidate AMF list, and a full registration request message to the (R)AN for storage and subsequent use. The initial AMF, once determines an AMF re-allocation is needed, instruct the UE to re-start the registration procedure with the core network, by using the generated 5G-GUTI. The (R)AN selects the target AMF, and forward the stored full registration request message to the target AMF to complete the registration.