Dynamic CoMP Selection Based on Terminal Mobility
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Solution Overview
Problem
Current communication systems face challenges in efficiently selecting between single-point transmission and reception (SP) and coordinated multi-point transmission and reception (CoMP) schemes, particularly in managing feedback overhead and mobility-related channel status variations, which affects data rate and network performance.
Innovation Solution
A method that determines the channel status of a target terminal, including mobility, to selectively choose between SP and CoMP based on factors like feedback overhead, mobility, and margin time, allowing for dynamic scheme switching to optimize data rate and reduce feedback overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If coordinated multi-point transmission and reception is used, then data rate is improved, but feedback overhead increases
Solution Approach 1:
The system dynamically switches between CoMP and non-CoMP transmission schemes based on terminal mobility conditions. When terminal mobility is low and channel status is stable, CoMP is activated to achieve higher data rates. When terminal mobility increases causing channel status to vary rapidly, the system transitions to non-CoMP scheme to reduce feedback overhead and processing complexity.
Solution Approach 2:
The system changes the transmission scheme parameter based on channel status information and terminal mobility. By monitoring channel status stability and mobility metrics, the system adjusts the CoMP configuration parameter, switching between CoMP and non-CoMP modes to optimize the trade-off between data rate and feedback overhead.
2Productivity
If coordinated multi-point transmission and reception is used, then data rate is improved, but device complexity increases
Solution Approach 1:
The system dynamically adjusts processing complexity by switching between CoMP and non-CoMP schemes based on terminal mobility. When channel status is stable (low mobility), the complex CoMP processing is activated. When channel status varies rapidly (high mobility), the system reduces processing complexity by using non-CoMP transmission, avoiding unnecessary computational overhead.
3Loss of information
If single-point transmission and reception is used, then feedback overhead is reduced, but data rate decreases
Solution Approach 1:
The system changes the transmission scheme parameter based on terminal mobility and channel status. When mobility is high causing rapid channel variations, the system selects non-CoMP transmission to minimize feedback overhead. When mobility is low and channel status is stable, the system switches to CoMP transmission to maximize data rate, thus dynamically optimizing the feedback overhead vs. data rate trade-off.
Data Source
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AI summary
A communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception are provided. The system and method include determining information associated with a channel status of a target terminal. The system and method also include selecting, with respect to the target terminal, one of single-point transmission and reception and coordinated multi-point transmission and reception based on the information associated with the channel status of the target terminal.