# US 12,192,166 B2 · Packet routing enhancements in microslices

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- Number: US 12,192,166 B2
- Document ID: US12192166B2
- Status: Granted
- Kind: B2
- Application number: 18/164,324
- Filed: 2023-02-03
- Published: 2023-08-10
- Granted: 2025-01-07
- Earliest claimed: 2022-02-04
- Assignees: Celona, Inc.
- Applicants: Celona, Inc.
- Inventors: John Taylor; Andrew Von Nagy; Vinay Anneboina; Srinivasan Balasubramanian; Stu Stout
- Web page: https://patentgrep.com/patent/US12192166B2

## CPC

- H04L 61/4511: using domain name system [DNS]
- H04L 61/58: Caching of addresses or names
- H04L 61/5014: using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
- H04L 2101/668: Internet protocol [IP] address subnets
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A dynamic Packet Data Network (PDN) context without requiring Access Point Name (APN) configuration on a user equipment (UE) is disclosed. The disclosed method and apparatus eliminate the need for a manual configuration of a UE in the field when different traffic forwarding or routing paths are required. The disclosed method and apparatus also provide for the proper Internet Protocol (IP) address assignment and the management of the Quality of Service (QOS) treatments applied to specific flows based on determined characteristics of the flows.

## Claims

### Claim 1

A wireless communication system comprising:
a) An application classifier configured to:
i. intercept and inspect domain name server (DNS) traffic;
ii. combining individual bridge subnets; and
iii. adding an internal host route to allow traffic addressed to a local area network (LAN) device to be routed to an appropriate bridge;
iv. create a mapping from DNS domain name to Internet Protocol address based on the combined individual bridge subnets for a predetermined amount of time based on a time to live (TTL) value sent with a DNS response.