Component Carrier Deactivation Using DRX and Time Configuration
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Solution Overview
Problem
Wireless communication systems face challenges in managing energy consumption and signal attenuation due to frequent activation and deactivation of component carriers, leading to inefficiencies and configuration parameter updates.
Innovation Solution
A method for wireless communication that includes receiving indications for cell deactivation, such as time configuration, deactivation type, or DRX configuration, and activating or deactivating cells accordingly, with dynamic or semi-static signaling to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If component carriers are frequently activated and deactivated to manage energy consumption, then energy efficiency is improved, but system complexity and configuration parameter updates increase
Solution Approach 1:
The patent implements dynamic activation and deactivation of component carriers based on real-time traffic conditions and channel quality. The network entity dynamically adjusts the activation state of secondary cells (SCells) by receiving channel state information and traffic load metrics, then generating appropriate activation/deactivation commands. This dynamic approach allows the system to adapt to changing conditions, reducing energy consumption during low-traffic periods while maintaining high performance when needed, thereby resolving the contradiction between energy efficiency and system complexity.
Solution Approach 2:
The patent employs periodic monitoring of channel conditions and traffic patterns to determine optimal times for component carrier activation and deactivation. The network entity periodically evaluates system state metrics and adjusts carrier activation accordingly, creating a rhythmic pattern of activation during high-demand periods and deactivation during low-demand periods. This periodic action enables energy savings while maintaining system readiness, addressing the trade-off between energy consumption and system complexity.
2Use of energy by moving object
If component carriers are deactivated to reduce energy consumption, then energy efficiency is improved, but signal transmission and reception reliability deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the network entity continuously monitors channel state information, signal quality metrics, and transmission reliability indicators. Based on this feedback, the system dynamically adjusts component carrier activation states. When signal quality degrades or reliability metrics fall below thresholds, the network entity activates additional carriers to maintain service quality. This feedback-driven approach ensures that energy savings from carrier deactivation do not compromise transmission reliability, as the system responds promptly to deteriorating conditions.
Solution Approach 2:
The patent employs preliminary action by maintaining configuration parameters and channel state information for deactivated component carriers in a ready state. When reliability requirements increase or channel conditions improve, the system can rapidly reactivate carriers without full reconfiguration delays. This preliminary preparation of carrier configurations ensures that reliability is maintained while allowing energy savings during low-demand periods, as the system can quickly transition from energy-saving mode to high-reliability mode when needed.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of at least one of: a time configuration for deactivation of a cell, a deactivation type for the deactivation of the cell, or a discontinuous reception (DRX) configuration for the deactivation of the cell. The UE may receive signaling indicating to deactivate the cell. The UE may deactivate the cell in accordance with at least one of the time configuration, the deactivation type, or the DRX configuration. Numerous other aspects are described.