Band-Specific DRX Short Cycles for 5G Power Saving

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Solution Overview

Problem

Existing wireless communication technologies lack flexibility in configuring Discontinuous Reception (DRX) short cycle parameters for different frequency bands, particularly for high and low frequency bands in 5G systems, leading to inefficient power consumption and data transmission.

Innovation Solution

Configuring distinct DRX short cycle parameters for different frequency bands, specifically setting shorter DRX short cycle timers and durations for high-frequency bands to reduce monitoring duration and power consumption, while optionally omitting DRX short cycles for high-frequency bands to further conserve power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a unified DRX short cycle parameter is configured for all frequency bands, then the configuration is simple, but power consumption efficiency is poor especially for high-frequency bands

Engineering Contradiction:
Improvepower consumption efficiencyVSAvoidconfiguration complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent segments the DRX configuration by frequency bands, creating separate DRX groups for different frequency ranges. This allows independent optimization of DRX short cycle parameters for each frequency band, enabling lower power consumption for high-frequency bands while maintaining appropriate monitoring for low-frequency bands, thus resolving the contradiction between power efficiency and configuration simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by configuring different DRX short cycle parameters tailored to specific frequency band characteristics. High-frequency bands receive shorter or omitted DRX short cycles to reduce power consumption, while low-frequency bands maintain standard configurations for reliable communication, optimizing power efficiency without compromising overall system performance.

Inventive Principle:
Principle #3Local quality

2Reliability

If DRX short cycle is configured for high-frequency bands, then monitoring coverage is complete, but power consumption increases

Engineering Contradiction:
Improvemonitoring coverageVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent introduces dynamic DRX configuration where the DRX short cycle parameters are adaptively adjusted based on frequency band characteristics. For high-frequency bands, the system dynamically sets shorter or omits DRX short cycles, while maintaining standard configurations for low-frequency bands, thus achieving flexible power management that balances monitoring coverage with power consumption requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the DRX parameter values according to frequency band properties. By modifying the DRX short cycle duration or enabling/disabling it entirely for high-frequency bands versus low-frequency bands, the system optimizes the balance between monitoring reliability and power consumption, allowing complete monitoring coverage where needed while conserving power where possible.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12477619B2Short cycle configuration method and apparatus, communication device, and storage medium
Publication Date: 2025.11.18 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12477619B2 patent drawing
  • US12477619B2 patent drawing
  • US12477619B2 patent drawing

AI summary

A short cycle configuration method The method includes: for a plurality of discontinuous reception (DRX) groups of a user equipment, configuring, by a base station, a DRX short cycle parameter of the DRX group for a first frequency band and/or the DRX group for a second frequency band; where a frequency of the first frequency band is higher than a frequency of the second frequency band.