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:
Jul. 15, 2025

Filed:

Sep. 05, 2023
Applicants:

Dish Wireless L.l.c., Englewood, CO (US);

Dish Network Technologies India Private Limited, Bangalore, IN;

Inventors:

Ankesh Arora, Rajasthan, IN;

Mohammad Dawood Shahdad, Aurora, CO (US);

Kevin Joseph Plunkett, Aurora, CO (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/121 (2022.01); H04L 43/0864 (2022.01); H04L 43/0882 (2022.01); H04L 43/16 (2022.01); H04L 45/00 (2022.01);
U.S. Cl.
CPC ...
H04L 45/121 (2013.01); H04L 43/0864 (2013.01); H04L 43/0882 (2013.01); H04L 43/16 (2013.01); H04L 45/70 (2013.01);
Abstract

A system to distinguish internal network routing issues within a user plane function (UPF) from external routing issues via multi-domain system (DNS) servers probing is disclosed. The system determines latency in communication between a given UPF and each of a plurality of DNS servers. The system compares each latency with a threshold latency value. If it is determined that each of the latencies in communication between the UPF and each DNS server is more than the threshold latency values, the system may determine that there is an internal network routing issue at the UPF that caused the high latencies. If it is determined that a latency in communication between the UPF and a particular DNS server is more than the threshold latency value, the system may determine that the latency is caused by a network routing issue at the particular DNS server—which is external to the UPF.


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