Slice Gateway Inspection Packet Routing for E2E Quality Measurement

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Solution Overview

Problem

Conventional techniques for measuring end-to-end (E2E) communication quality in networks using E2E slices require implementing a measurement function in the application at the communication endpoint, leading to increased implementation hurdles and potential waste of communication resources.

Innovation Solution

A slice gateway is introduced that connects multiple subslices within an E2E slice, featuring a slice processing unit that receives inspection packets, determines their output destination subslices, embeds IDs in the packets, and outputs them to the appropriate subslices, while a notification unit informs a quality tabulation device of the packet information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a measurement function is implemented in the application at the communication endpoint, then E2E communication quality measurement can be performed, but implementation hurdles increase and communication resources may be wasted

Engineering Contradiction:
ImproveE2E communication quality measurementVSAvoidapplication implementation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a slice gateway as an intermediary device that performs quality measurement functions. The gateway receives inspection packets, determines output destination subslices based on distribution tables, embeds subslice IDs in packet payloads, and notifies quality tabulation devices of packet information. This mediator approach eliminates the need for measurement functions in endpoint applications while enabling comprehensive E2E quality measurement across multiple subslices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If multiple applications use the same E2E slice with individual measurement functions, then each application can measure quality, but communication resources are wasted due to redundant measurements

Engineering Contradiction:
Improvequality measurement capabilityVSAvoidcommunication resource waste
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The slice gateway serves as a universal measurement point for all applications using E2E slices. A single gateway performs quality measurement for multiple applications sharing the same subslices, eliminating redundant inspection packets and measurement operations. The gateway notifies the quality tabulation device of packet information once, regardless of how many applications utilize the measured slice, thereby conserving communication resources while maintaining measurement capability for all users.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12213063B2Slice gateway, quality calculation apparatus, inspection packet processing method and program
Publication Date: 2025.01.28 NIPPON TELEGRAPH & TELEPHONE CORP
  • US12213063B2 patent drawing
  • US12213063B2 patent drawing
  • US12213063B2 patent drawing

AI summary

A slice gateway connects one or more subslices in a network in which an E2E slice is made up of multiple subslices. The slice gateway receives an inspection packet, determines an output destination subslice of the inspection packet based on a distribution table, embeds an ID of the output destination subslice in a payload of the inspection packet, and outputs the packet that includes the embedded ID to the output destination subslice; and notifies a quality tabulation device of information regarding the inspection packet.