Dynamic Power Allocation for 5G Downlink Data Channels
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Solution Overview
Problem
Current power allocation methods for downlink data channels in 5G networks are semi-static and do not effectively address the self-interference issue, leading to suboptimal data demodulation performance.
Innovation Solution
The method dynamically indicates second power allocation information within downlink data scheduling information, allowing terminals to adjust power settings for current data transmission while maintaining previous settings for other transmissions, and transmitting new power allocation information through DCI or RRC reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semi-static power allocation methods are used for downlink data channels, then system stability is maintained, but data demodulation performance deteriorates due to self-interference issues
Solution Approach 1:
The patent applies dynamics by transitioning from semi-static power allocation to dynamic power allocation. The network device determines power allocation information for downlink data channels based on current channel conditions and self-interference levels, allowing the power allocation to adapt continuously rather than remaining fixed. This enables the system to respond to changing interference conditions and optimize demodulation performance in real-time.
Solution Approach 2:
The patent implements parameter changes by modifying the power allocation parameters dynamically. Specifically, the network device adjusts the power allocation information for downlink data channels based on detected self-interference levels and channel quality, changing these parameters adaptively rather than using fixed semi-static values. This allows optimization of demodulation performance under varying interference conditions.
2Reliability
If dynamic power allocation is implemented for all downlink data channels, then data demodulation performance improves, but signaling overhead and system complexity increase
Solution Approach 1:
The patent applies local quality by implementing differentiated power allocation strategies for different downlink data channels. Instead of uniformly applying dynamic power allocation to all channels, the network device selectively determines power allocation information based on specific channel conditions, terminal requirements, and interference levels for each channel. This localized approach optimizes performance where needed while reducing unnecessary complexity for channels that don't require dynamic adjustment.
Solution Approach 2:
The patent implements segmentation by dividing the power allocation management into separate determination processes for different downlink data channels. The network device independently determines power allocation information for each channel based on its specific conditions, rather than managing all channels as a single unified system. This segmented approach reduces overall system complexity while maintaining optimization benefits for individual channels.
Data Source
AI summary
Disclosed by the present invention are a power indication method, a network device, a terminal device and a computer storage medium, the method comprising: in downlink data scheduling information, indicating to a terminal device second power allocation information for a downlink data channel.