SLG Network Slice Selection and Activation

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Solution Overview

Problem

In existing network slice architectures, setting and changing low-latency slices across multiple infrastructure providers is complex and not feasible due to unforeseen demand, requiring intricate latency allocation processes that hinder quick and flexible slice configuration.

Innovation Solution

A communication system with virtualized customer premises equipment (vCPE) and slice gateways (SLGs) that autonomously select or activate SLGs based on topology and processing capability information to reserve or establish network slices that meet specific conditions, allowing for flexible and rapid slice configuration without orchestrator intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a slice is newly set over multiple providers to realize low-latency service, then the low-latency slice can be established, but the orchestrator needs to perform complicated latency allocation processes that delay setup time

Engineering Contradiction:
Improvelow-latency service guaranteeVSAvoidslice setup time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The SLG performs self-selection of destination SLGs and self-activation without requiring orchestrator intervention. The selection unit autonomously evaluates topology information, latency states, and processing capability information to determine the optimal destination SLG, eliminating the need for complex manual coordination between multiple providers.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-configures and stores topology information, latency states, and processing capability information in advance. When a low-latency slice is needed, the SLG can immediately query and utilize this pre-stored data to make rapid decisions about destination SLG selection and activation, avoiding time-consuming real-time coordination.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the orchestrator performs integrated control to dynamically change slice priority, then the slice can be optimized, but the control process becomes complex and reduces system flexibility

Engineering Contradiction:
Improveslice configuration flexibilityVSAvoidorchestrator control complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention extracts the slice configuration and selection functions from the central orchestrator and transfers them to the distributed SLGs. Each SLG independently performs selection and activation based on local and global information, eliminating the need for complex orchestrator control while maintaining system adaptability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system enables dynamic slice configuration through distributed decision-making. The selection unit can adaptively choose destination SLGs based on real-time conditions such as latency states and processing capability, allowing the system to dynamically respond to changing network conditions without requiring complex centralized orchestration.

Inventive Principle:
Principle #15Dynamics

3Productivity

If traffic is allocated to preset low-latency network slices, then low-latency service is achieved, but unforeseen demand cannot be accommodated and requires complex reconfiguration

Engineering Contradiction:
Improveservice delivery speedVSAvoiddemand adaptability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system enables dynamic adaptation to unforeseen demand through the selection unit's ability to evaluate current network conditions in real-time. When demand changes, the SLG can reassess latency states and processing capability information to dynamically select appropriate destination SLGs, allowing the system to adapt to new requirements without requiring complex reconfiguration of existing preset slices.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11864097B2Communication system and communication method
Publication Date: 2024.01.02 NIPPON TELEGRAPH & TELEPHONE CORP
  • US11864097B2 patent drawing
  • US11864097B2 patent drawing
  • US11864097B2 patent drawing

AI summary

In a communication system, an SLG includes a slice selection unit that selects, in receiving a network slice reservation request including a network condition from a vCPE, based on topology information, a latency state, and processing capability information regarding each of the other SLGs, a destination SLG of a network slice that satisfies the network condition to reserve the network slice, and if there is no destination SLG that satisfies the network condition, newly activates a destination SLG to establish a network slice that satisfies the network condition, and an allocation unit that allocates traffic transmitted from the vCPE to the network slice reserved or established by the selection unit.