DRX Cycle Configuration for Energy-Saving Terminal Latency Balance

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Solution Overview

Problem

Existing communication systems face challenges in implementing longer discontinuous reception (DRX) cycles for energy-saving terminal devices without adversely affecting the latency of data transmission for non-energy-saving devices.

Innovation Solution

A method and apparatus that extend the DRX cycle for energy-saving terminal devices by using first information to indicate a first DRX cycle, allowing the terminal device to determine a target DRX cycle, thereby reducing power consumption without impacting latency for non-energy-saving devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If longer DRX cycles are introduced for energy-saving terminal devices, then power consumption is reduced, but data transmission latency increases

Engineering Contradiction:
Improvepower consumptionVSAvoiddata transmission latency
Core Design Contradiction:
Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent applies local quality by configuring different DRX cycle lengths for different terminal devices based on their energy-saving capabilities. Energy-saving terminal devices are configured with longer DRX cycles to reduce power consumption, while non-energy-saving devices use shorter DRX cycles to maintain low latency. This differentiated configuration allows each device to operate with optimal DRX parameters suited to its specific requirements.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making the DRX cycle configuration adjustable and adaptable. The network device can dynamically configure appropriate DRX cycle lengths for different terminal devices based on their energy-saving functions and service requirements. This dynamic configuration approach allows the system to optimize the balance between power consumption and latency for each device individually.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a single DRX cycle configuration is applied to all terminal devices, then system complexity is reduced, but energy-saving performance for specific devices deteriorates

Engineering Contradiction:
Improvesystem complexityVSAvoidenergy-saving performance
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent applies segmentation by dividing terminal devices into different categories based on their energy-saving capabilities. The network device segments devices into energy-saving terminal devices and non-energy-saving terminal devices, and configures appropriate DRX cycles for each segment. This segmentation approach enables targeted optimization without requiring complex individual configurations for every device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements parameter changes by modifying the DRX cycle parameter based on terminal device characteristics. The network device changes the DRX cycle parameter from a uniform value to device-specific values, allowing energy-saving devices to use longer cycles while non-energy-saving devices use shorter cycles. This parameter adjustment resolves the contradiction between system simplicity and energy-saving performance.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250351222A1Communication method and communication apparatus
Publication Date: 2025.11.13 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US20250351222A1 patent drawing
  • US20250351222A1 patent drawing
  • US20250351222A1 patent drawing

AI summary

A communication method and communication apparatus are provided. The method includes: a terminal device receives first information, and the first information indicates a first discontinuous reception (DRX) cycle corresponding to an energy-saving function; the terminal device determines a target DRX cycle of the terminal device according to the first information.