Carrier Aggregation Assignment Under Backhaul Capacity Limits

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Solution Overview

Problem

Current carrier aggregation (CA) configurations in wireless networks do not account for backhaul limitations, leading to inefficiencies and performance bottlenecks due to unmanaged backhaul capacity issues.

Innovation Solution

A system and method for dynamically configuring CA by monitoring backhaul limits and adjusting carrier aggregation based on these limits to optimize resource allocation and prevent activation when backhaul capacity is exceeded.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If carrier aggregation is activated to increase peak data rate, then data throughput is improved, but backhaul capacity is exceeded causing network performance degradation

Engineering Contradiction:

Improvedata throughputVSAvoidnetwork performance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic carrier aggregation configuration that adapts to changing backhaul capacity conditions. The system continuously monitors backhaul limits and adjusts CA activation/deactivation accordingly, transitioning from static to dynamic resource allocation to resolve the contradiction between maximizing throughput and maintaining network performance

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by monitoring backhaul capacity utilization and using this information to control carrier aggregation activation. When backhaul limits are detected, the system provides feedback to deactivate CA configurations, creating a closed-loop control system that balances throughput optimization with network performance preservation

Inventive Principle:

Principle #23Feedback

2Productivity

If carrier aggregation is configured to utilize available spectrum resources, then resource utilization is improved, but unnecessary configurations are created when backhaul capacity is limited

Engineering Contradiction:

Improveresource utilizationVSAvoidnetwork resource waste

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The system performs preliminary monitoring of backhaul capacity limits before activating carrier aggregation configurations. By checking backhaul availability in advance and only enabling CA when capacity permits, the system avoids unnecessary resource allocation and prevents waste of network resources on configurations that cannot be supported

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the operational parameters of carrier aggregation based on backhaul capacity conditions. When backhaul limits are detected, the system modifies parameters by deactivating CA configurations; when capacity is sufficient, CA is activated. This parameter adaptation optimizes resource utilization while preventing waste

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260075645A1Carrier aggregation assignment using backhaul limitations

Publication Date: 2026.03.12 T MOBILE INNOVATIONS LLC

AI summary

Systems and methods are provided for dynamically assigning carrier aggregation to user equipment (UE) utilizing backhaul limits as an initial threshold. Backhaul limits are bottlenecks for data in telecommunications networks. By assigning carrier aggregation based on backhaul limit constraints, networks can optimize carrier aggregation activation and optimize resource allocation within the network. Networks stand to benefit from discontinuing blind activation of carrier aggregation when the addition of more cells assigned to the UE do not impact the maximum data throughput achieved in view of the backhaul limits experienced by the network at a given time.