Network DTX Configuration for Wireless Energy Savings
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Solution Overview
Problem
Current wireless communication systems face challenges in managing network energy efficiently, particularly with the introduction of Network (NW)/Cell Discontinuous Transmission (DTX) technologies, which require effective configuration and management to optimize energy usage without compromising performance.
Innovation Solution
The implementation of a method and system that allows User Equipment (UE) and base stations to configure and manage Network DTX/DRX patterns through specific RRC signaling, enabling periodic cell DTX/DRX patterns to reduce transmission and reception activities, thereby conserving energy while maintaining system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If Network Discontinuous Transmission (DTX) is implemented to reduce energy consumption, then power usage decreases, but system complexity increases due to configuration and management requirements
Solution Approach 1:
The patent segments the DTX configuration by introducing separate parameter sets for different Discontinuous Reception (DRX) states (onDuration, inactivityTimer, retransmissionTimer, etc.). This allows independent optimization of energy saving parameters for each DRX state without requiring complete reconfiguration, thereby reducing overall system complexity while maintaining energy efficiency.
Solution Approach 2:
The patent implements dynamic DTX configuration where parameters can be adjusted based on current network conditions, UE activity patterns, and DRX state transitions. The base station can dynamically modify DTX parameters through RRC signaling to adapt to changing traffic patterns, balancing energy savings with service quality requirements.
2Loss of energy
If periodic cell DTX/DRX patterns are used to conserve energy, then transmission activities reduce, but signal coverage and reliability may deteriorate
Solution Approach 1:
The patent implements periodic DTX/DRX patterns with configurable parameters (onDuration, inactivityTimer, drx-SlotOffset, etc.) that allow the system to enter low-power states during periods of reduced activity while maintaining the ability to quickly resume normal operation. The periodic nature ensures predictable energy savings while the configurable parameters allow optimization of the balance between energy conservation and signal availability.
Solution Approach 2:
The system incorporates feedback mechanisms where the base station monitors UE activity, channel conditions, and DRX state transitions to dynamically adjust DTX parameters. This feedback loop ensures that energy saving patterns are adapted based on actual network conditions, maintaining reliability during high-activity periods while maximizing energy savings during low-activity periods.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a base station, configuration information on a network discontinuous transmission (DTX) associated with a transmit/receive point (TRP), receiving, from the base station, a first message for activating the network DTX, and stopping a physical downlink control channel (PDCCH) monitoring for the TRP based on the configuration information.