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:
Oct. 06, 2026

Filed:

May. 28, 2021
Applicant:

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

Inventors:

Yizhuang Wu, Beijing, CN;

Chunshan Xiong, Shenzhen, CN;

Haiyang Sun, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 8/14 (2009.01); H04W 28/06 (2009.01);
U.S. Cl.
CPC ...
H04W 8/14 (2013.01); H04W 28/06 (2013.01);
Abstract

A PCF determining method includes: receiving, by a first AMF, PCF identification information sent by a second AMF, and obtaining, by the first AMF, policy information from a target PCF when at least one PCF corresponding to the PCF identification information includes the target PCF, where the PCF identification information includes identification information of at least one first PCF, where the identification information of the first PCF includes at least one of an IP address of the first PCF, an IP prefix of the first PCF, or an FQDN of the first PCF, where the first AMF is an AMF providing a service for the terminal to access a network this time, and where the second AMF is an AMF providing a service for the terminal to access a network last time.


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