DRX Inactivity Timer Mechanism for 5G UE Power Optimization
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in optimizing discontinuous reception (DRX) modes to reduce power consumption and improve spectral efficiency, as they often require continuous monitoring of network channels, leading to increased power usage and inefficient resource management.
Innovation Solution
Implementing a method to configure DRX modes by evaluating communications with the network, setting an inactivity timer duration based on trigger conditions, and dynamically adjusting this timer based on subsequent communications, allowing the user equipment to alternate between active and inactive modes, thereby reducing unnecessary power consumption and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous monitoring of network channels is implemented, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) cycles where the user equipment alternates between active monitoring periods and inactive sleep periods. During DRX cycles, the device monitors network channels periodically rather than continuously, reducing power consumption while maintaining communication reliability through timely wake-ups for potential data transmissions.
Solution Approach 2:
The inactivity timer is dynamically adjusted based on trigger conditions from network communications. When activity is detected, the timer extends the active period; when no activity occurs, the timer allows transition to inactive mode. This dynamic adjustment optimizes the balance between monitoring reliability and power savings adaptively.
2Speed
If inactivity timer duration is extended to maintain communication readiness, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The inactivity timer duration is dynamically adjusted based on trigger conditions from network communications. When activity is detected, the timer extends the active period; when no activity occurs, the timer allows transition to inactive mode. This dynamic adjustment optimizes the balance between monitoring reliability and power savings adaptively.
Solution Approach 2:
The system changes the inactivity timer parameter based on communication states and trigger conditions. By adjusting this time parameter dynamically, the system adapts communication responsiveness to actual network activity patterns, extending the timer when needed for responsiveness and reducing it for power savings.
3Use of energy by moving object
If processing and decoding resources are reduced to conserve power, then power consumption decreases, but communication efficiency deteriorates
Solution Approach 1:
The patent implements discontinuous reception (DRX) cycles where the user equipment alternates between active monitoring periods and inactive sleep periods. During DRX cycles, the device monitors network channels periodically rather than continuously, reducing power consumption while maintaining communication reliability through timely wake-ups for potential data transmissions.
Solution Approach 2:
The system uses trigger conditions from network communications to automatically adjust inactivity timer duration without continuous external control. This self-service mechanism allows the device to autonomously optimize its power consumption and communication efficiency based on actual network activity patterns.
Data Source
AI summary
Techniques are provided for operating user equipment (UE) in a discontinuous reception (DRX) mode, and more specifically, setting a DRX inactivity timer value. An example method for operating a user equipment in a discontinuous reception mode including an active mode for communicating with a network and an inactive mode when the user equipment does not communicate with the network includes determining a trigger condition based on a communication with the network, determining the inactivity timer value based on the trigger condition, and operating the user equipment in the active mode during a duration of the inactivity timer value and in the inactive mode after the duration of the inactivity timer value.