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.

Date of Patent:
Jun. 03, 2025

Filed:

Jan. 18, 2022
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Zhenyu Tao, Shanghai, CN;

Chuankui Jiang, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01);
U.S. Cl.
CPC ...
H04W 36/00222 (2023.05);
Abstract

A service continuity implementation method, a related device, and a system, where when a user equipment is attached to a 2/3G network, a serving node device determines that the user equipment has a 5G capability or a user corresponding to the user equipment is a 5G user. Then, the serving node device selects a 5G gateway for the user equipment, and establishes a session with the 5G gateway. In this way, when the user equipment subsequently moves to a 5G network, the same 5G gateway serves the user equipment, and an address of the user may remain unchanged when the user equipment moves from the 2/3G network to the 5G network, thereby implementing service continuity of the user.


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