Dynamic Carrier Aggregation and Dual Connectivity Selection

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Solution Overview

Problem

Current communication systems face challenges in efficiently selecting between carrier aggregation (CA) and dual connectivity (DC) for providing communication services, particularly in managing latency and bandwidth requirements across different frequency bands.

Innovation Solution

The system analyzes various factors such as application type, frequency band loads, power source, mobility, and RF conditions to dynamically select between CA and DC for user equipment, optimizing network resource utilization and user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If carrier aggregation is used to aggregate multiple NR carriers, then bandwidth is increased, but latency requirements become more stringent and millimeter wave carriers are not supported

Engineering Contradiction:
ImprovebandwidthVSAvoidlatency
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The patent segments the communication architecture into multiple baseband processing units (first baseband processing unit and second baseband processing unit) that can independently handle different carrier types. This segmentation allows FR1 carriers to be processed in one unit and FR2 carriers in another, eliminating the latency constraints of carrier aggregation and enabling support for millimeter wave carriers that were previously incompatible with CA.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a dual connectivity architecture as an intermediary solution between the user equipment and the network. By using DC with separate baseband processing units connected via high-speed interface, the system achieves millimeter wave support without the stringent latency requirements of carrier aggregation, effectively using DC as a mediator to resolve the contradiction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If dual connectivity is used with mmWave carriers, then millimeter wave support is enabled, but inter-carrier communication latency requirements are relaxed

Engineering Contradiction:
ImprovemmWave supportVSAvoidinter-carrier communication latency
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent divides the baseband processing into separate units for FR1 and FR2 carriers, allowing each unit to operate independently with relaxed latency requirements. This segmentation enables mmWave carrier support through dual connectivity without being constrained by the tight latency budgets that would otherwise be required for carrier aggregation.

Inventive Principle:
Principle #1Segmentation

3Productivity

If dynamic selection between CA and DC is implemented, then network resource utilization is optimized, but device complexity increases

Engineering Contradiction:
Improvenetwork resource utilizationVSAvoidselection mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements self-service mechanisms where the network automatically determines whether to use CA or DC based on real-time conditions such as channel quality, traffic requirements, and available resources. The network configures the appropriate mode without requiring complex decision-making at the user equipment side, thus optimizing network resource utilization while keeping device complexity manageable.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250203689A1Apparatuses and methods for facilitating a selection between carrier aggregation and dual connectivity
Publication Date: 2025.06.19 AT&T INTELLECTUAL PROPERTY I L P
  • US20250203689A1 patent drawing
  • US20250203689A1 patent drawing
  • US20250203689A1 patent drawing

AI summary

Aspects of the subject disclosure may include, for example, analyzing data in accordance with at least one algorithm to select one of carrier aggregation or dual connectivity for providing a communication service in respect of a communication device, resulting in a selection, and providing the communication service to the communication device in accordance with the selection. Other embodiments are disclosed.