Frequency Band Reallocation for Interruption-Sensitive 5G Services

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Solution Overview

Problem

Selecting an appropriate primary cell (Pcell) for communication services is challenging due to user or device mobility, environmental changes, and network load variations, especially in 5G networks, which can lead to interruptions and service degradation.

Innovation Solution

A system and method for determining device characteristics, such as mobility, and comparing them to thresholds to dynamically allocate communication services to different frequency bands, ensuring seamless transitions and minimizing interruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single frequency band is used for communication service, then device complexity is reduced, but service reliability deteriorates due to mobility and environmental changes

Engineering Contradiction:
Improvefrequency band managementVSAvoidcommunication service continuity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system dynamically switches between frequency bands based on real-time mobility detection. When mobility exceeds a threshold, the system transitions from a single frequency band to dual frequency band operation, and vice versa. This dynamic adaptation resolves the contradiction by adjusting system complexity according to actual service requirements rather than maintaining fixed complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter of frequency band configuration from single-band to dual-band mode based on mobility conditions. This parameter change allows the system to optimize between complexity and reliability by selecting the appropriate frequency band configuration for current service conditions.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If frequency band switching is performed frequently, then service adaptability improves, but service stability deteriorates due to handover interruptions

Engineering Contradiction:
Improvefrequency band selectionVSAvoidcommunication service continuity
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The system performs preliminary mobility assessment and predicts future service needs before actual handover becomes necessary. By detecting mobility trends in advance and pre-configuring appropriate frequency band settings, the system avoids frequent reactive switching that causes interruptions, thereby maintaining stability while preserving adaptability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms to monitor service quality and mobility conditions continuously. This feedback allows the system to learn from past switching decisions and optimize future switching behavior, reducing unnecessary handovers while maintaining service adaptability to changing conditions.

Inventive Principle:
Principle #23Feedback

3Reliability

If dual frequency band operation is implemented, then service reliability improves through seamless handover, but device complexity increases

Engineering Contradiction:
Improvehandover continuityVSAvoidfrequency band management
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system segments frequency band management into distinct operational modes (single-band mode and dual-band mode) rather than continuously managing all possible frequency configurations. This segmentation simplifies device complexity by providing clear operational boundaries and reducing the cognitive load on the communication management system while maintaining reliability when dual-band operation is activated.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12470994B2Apparatuses and methods for facilitating resource detection and selection in relation to interruption-sensitive services
Publication Date: 2025.11.11 AT&T INTELLECTUAL PROPERTY I L P
  • US12470994B2 patent drawing
  • US12470994B2 patent drawing
  • US12470994B2 patent drawing

AI summary

Embodiments include identifying, by a processing system including a processor, a type of a communication service being provided to a communication device, wherein the communication service is facilitated via a first signal that is transmitted to the communication device, the first signal having a first frequency, determining, by the processing system, a degree of a mobility of the communication device relative to a communication range of a first frequency band, the first frequency included in the first frequency band, and causing, by the processing system and based on the type of the communication service and the degree of the mobility, a second signal to be transmitted to the communication device as part of the communication service, wherein the second signal has a second frequency included in a second frequency band that is different from the first frequency band.