5G GBR Admission Control via Segmented Network Slices

Solution Overview

Problem

5G networks face challenges in efficiently managing guaranteed bitrate admission control across multiple network slices, leading to issues with blocking performance and resource allocation for various services, which affects the quality of service and user experience.

Innovation Solution

A framework is proposed that configures a balance between blocking performance and statistical multiplexing of guaranteed bitrate admission control resources across multiple network slices by defining common and dedicated GBR admission control regions, using statistical multiplexing factors and quality class indicators to determine resource allocation thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If common GBR admission control region is used for all services, then resource utilization is improved, but service differentiation capability deteriorates

Engineering Contradiction:

Improveresource utilizationVSAvoidservice differentiation capability

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent segments the GBR admission control region into two distinct parts: a common GBR admission control region shared by all services and a dedicated GBR admission control region specific to each service. This segmentation allows the common region to provide efficient resource utilization through statistical multiplexing while the dedicated region maintains service differentiation capability by allocating specific resources to individual services with different QoS requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by providing different admission control characteristics to different services. Services with stringent QoS requirements can access dedicated GBR admission control regions with guaranteed resources, while other services utilize the common region with statistical multiplexing. This creates localized quality variations matched to specific service needs within the overall system.

Inventive Principle:

Principle #3Local quality

2Reliability

If dedicated GBR admission control region is allocated for each service, then service quality is improved, but resource efficiency deteriorates

Engineering Contradiction:

Improveservice qualityVSAvoidresource efficiency

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the GBR admission control region into two distinct parts: a common GBR admission control region shared by all services and a dedicated GBR admission control region specific to each service. This segmentation allows the common region to provide efficient resource utilization through statistical multiplexing while the dedicated region maintains service differentiation capability by allocating specific resources to individual services with different QoS requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements partial dedicated allocation rather than full dedicated allocation for each service. The dedicated GBR admission control region provides partial resource guarantee for services requiring high reliability, while the majority of resources remain in the common region for statistical multiplexing. This partial action approach achieves adequate service quality for critical services while maintaining overall resource efficiency.

Inventive Principle:

Principle #16Partial or excessive action

3Quantity of substance

If admission control threshold is set high, then resource utilization is improved, but blocking performance deteriorates

Engineering Contradiction:

Improveresource utilizationVSAvoidblocking performance

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent segments the admission control mechanism into two threshold systems: one for the common GBR admission control region and another for the dedicated GBR admission control region. This allows different threshold settings optimized for their respective purposes - the common region can use higher thresholds for better resource utilization, while the dedicated region uses appropriate thresholds to ensure blocking performance for critical services.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20240397375A1Flexible configuration of guaranteed bitrate admission control for 5g or other next generation network

Publication Date: 2024.11.28 AT&T INTELLECTUAL PROPERTY I L P

AI summary

A system can facilitate assigning guaranteed bitrate (GBR) admission control thresholds in a network with multiple network slices serving multiple GBR services. Thus, each network slice can optionally have its own dedicated GBR admission. For example, based on a requested service, the system can compare a received quality indicator to a threshold value to determine if a bearer shall be admitted in accordance with dedicated GBR admission control region within its slice. If the slice does not have its own GBR admission control region or if its threshold is reached, the system can compare the received quality indicator to another threshold value to determine if the bearer shall be admitted in accordance with a common GBR admission control region.