DRX Power-Saving Signal Configuration for UE Energy Reduction
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Solution Overview
Problem
In discontinuous carrier aggregation scenarios of LTE systems, inconsistent power-saving signal configurations for short cycles across different DRX groups lead to increased power consumption in user equipment (UE) due to the need for monitoring power-saving signals across multiple frequency bands.
Innovation Solution
Configuring distinct power-saving signal configurations for both long and short cycles of DRX groups, allowing the UE to monitor power-saving signals tailored to each cycle type, thereby reducing power consumption by optimizing signal parameters such as effective range, transmission carrier, start and end times, and transmission cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power-saving signal configurations are inconsistent across different DRX groups, then system capacity and peak rate requirements are met, but UE power consumption increases
Solution Approach 1:
The patent divides the DRX configuration into multiple independent DRX groups, each with its own power-saving signal configuration. This segmentation allows the system to meet capacity requirements through multiple groups while enabling the UE to selectively monitor only one group's power-saving signals, thereby reducing overall power consumption compared to monitoring all groups simultaneously.
Solution Approach 2:
The patent applies different power-saving signal configurations locally to each DRX group based on specific cycle types (long cycle vs. short cycle). By tailoring the configuration to local characteristics of each group rather than using a uniform configuration, the system optimizes the balance between productivity requirements and power consumption for each specific DRX group.
2Adaptability or versatility
If multiple RF chains are used for discontinuous carrier aggregation, then different frequency bands are supported, but device complexity increases
Solution Approach 1:
The patent creates a unified power-saving signal configuration framework that works across multiple DRX groups and frequency bands. By establishing universal configuration parameters and rules that apply across different DRX groups, the system supports multiple frequency bands and carrier aggregation scenarios without requiring separate complex configuration mechanisms for each band, thereby reducing overall device complexity.
Data Source
AI summary
A method for processing discontinuous reception (DRX), the method includes: configuring different power-saving signal configurations for a long period and a short period of at least one DRX group.