Dynamic Core Network Slice Selection for Service Delivery

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Solution Overview

Problem

Conventional mobility core network designs are inefficient due to static network selection mechanisms, leading to increased signaling and processing times, higher capital and operating costs, and suboptimal resource allocation, as they rely on pre-configured mappings and lack dynamic function reconfiguration and intelligent selection across different radio access technologies.

Innovation Solution

A dynamic core network control selection mechanism that allocates user equipment to suitable core network slices based on service requests and radio capabilities, utilizing a service abstraction component to facilitate intelligent and flexible selection and reconfiguration of core network slices, leveraging software-defined networking and network functions virtualization to optimize resource allocation and reduce costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pre-configured mappings are used for network selection, then device compatibility is maintained, but network signaling and processing times increase

Engineering Contradiction:
Improvedevice compatibilityVSAvoidnetwork signaling and processing times
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-configuring multiple core network node mappings in the RAN, including both traditional pre-configured mappings and dynamically determined mappings. This allows the RAN to have multiple destination options ready in advance, enabling faster selection without requiring complex real-time analysis, thus reducing signaling and processing times while maintaining device compatibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces dynamics by allowing the RAN to transition from static pre-configured mappings to dynamic mappings determined by intelligent selection mechanisms. The RAN can adaptively select between different core network nodes based on current network conditions, service requirements, and device capabilities, optimizing performance while maintaining compatibility through structured selection criteria.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If RAN is pre-configured to direct service requests to specific core network nodes, then connection setup is simplified, but resource allocation efficiency decreases

Engineering Contradiction:
Improveconnection setupVSAvoidresource allocation efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system maintains simplified connection setup by pre-configuring multiple core network node mappings in the RAN, including backup and alternative destinations. This preliminary configuration allows the RAN to quickly establish connections using ready-made mappings while still enabling efficient resource allocation through intelligent selection among multiple pre-prepared options based on current network state.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of mapping selection from static to dynamic by introducing intelligent selection mechanisms that evaluate multiple pre-configured mappings. The RAN can adjust which mapping to use based on service requirements, network conditions, and resource availability, thereby improving resource allocation efficiency while maintaining the simplicity of pre-configured connection setup.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If static network selection mechanisms are used, then implementation complexity is reduced, but network efficiency and cost increase

Engineering Contradiction:
Improveimplementation complexityVSAvoidnetwork efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system performs preliminary actions by pre-configuring multiple core network node mappings including primary and alternative destinations. This reduces implementation complexity because the complex selection logic is executed once during configuration, while runtime operation simply involves selecting from pre-evaluated options, thereby improving network efficiency without significantly increasing implementation complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces an intermediary intelligent selection mechanism that mediates between simple pre-configured mappings and optimal resource allocation. This intermediary layer evaluates multiple pre-configured mappings and selects the most appropriate one based on service requirements and network conditions, improving network efficiency while keeping the overall system complexity manageable through structured decision-making.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If cross-nodal redirections are performed, then service delivery flexibility is improved, but network signaling and processing times increase

Engineering Contradiction:
Improveservice delivery flexibilityVSAvoidnetwork signaling and processing times
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-configuring multiple core network node mappings that include alternative destinations for cross-nodal redirection. By having these mappings prepared in advance with known routes and capabilities, the system can perform cross-nodal redirections with improved flexibility while minimizing signaling and processing times, as the redirection targets are already identified and configured.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11146645B2Next generation mobility core network controller for service delivery
Publication Date: 2021.10.12 AT&T INTELLECTUAL PROPERTY I L P
  • US11146645B2 patent drawing
  • US11146645B2 patent drawing
  • US11146645B2 patent drawing

AI summary

Network and/or application resources can be dynamically instantiated based on service attributes and/or network capabilities. In one aspect, a customized and/or localized core slice can be selected that can deliver the requested service with target performance parameters. According to an aspect, dynamic selection, control, and/or management reporting can be provided for core network slices. Moreover, optimal core network slice selection can be performed to reduce network transport costs and efficiently deliver various services using an optimal core slice that matches a service profile being requested by an end user and/or device.