Dynamic C-DRX Provisioning for Wireless Device Power and Latency

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Solution Overview

Problem

Current Connected Mode Discontinuous Reception (C-DRX) configurations in wireless devices are not dynamically adaptable to the specific needs of applications, leading to sub-optimal performance in terms of battery life and latency.

Innovation Solution

A dynamic C-DRX provisioning service is implemented in wireless end devices, allowing for per-end device and per-application basis configuration changes. This service compares the current C-DRX configuration with the configured settings and initiates modifications as needed, ensuring optimal performance for active applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If C-DRX is enabled to reduce power consumption, then battery life is improved, but latency increases

Engineering Contradiction:

Improvepower consumptionVSAvoidlatency

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent implements dynamic C-DRX configuration where the DRX cycle duration and timing parameters are adjusted in real-time based on application characteristics. The system transitions from static DRX settings to dynamic adaptation, allowing the wireless device to modify DRX parameters during operation to balance power savings with latency requirements for different applications.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes DRX parameters such as cycle duration, on-duration, and inactivity timer values based on application needs. By modifying these parameters dynamically, the system can optimize the trade-off between power consumption and latency for different application scenarios, enabling longer DRX cycles for power-sensitive applications and shorter cycles for latency-sensitive applications.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If a single C-DRX configuration is used for all applications, then device complexity is reduced, but adaptability to specific application needs deteriorates

Engineering Contradiction:

Improveconfiguration managementVSAvoidapplication-specific optimization

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the C-DRX configuration into application-specific profiles or templates. Each application or application type can have its own configured DRX parameters, allowing the system to select and apply the appropriate configuration based on the active application. This segmentation enables adaptability without requiring complex real-time calculation, as pre-defined profiles are selected rather than computed dynamically.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary configuration of C-DRX parameters for different applications before they are executed. Application-specific DRX settings are pre-established and stored, allowing the system to quickly switch between configurations based on application type. This preliminary action eliminates the need for complex real-time configuration decisions while maintaining high adaptability to different application needs.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12324048B2Method and system for dynamic connected mode discontinuous reception

Publication Date: 2025.06.03 VERIZON PATENT & LICENSING INC

AI summary

A method, a device, and a non-transitory storage medium are described in which a dynamic C-DRX provisioning service is provided. The service may disable or enable discontinuous reception on a per end device application or network slice basis. The service may invoke an end device capability procedure to modify a discontinuous reception configuration of a network. The service may store information that correlates an application or network slice to a discontinuous reception setting.