CSI Port Adaptation for Dynamic Antenna Muting
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Solution Overview
Problem
Existing wireless communication systems face challenges in dynamically adapting logical antenna ports to optimize energy consumption and channel performance, as semi-static port muting fails to account for varying channel conditions and data traffic.
Innovation Solution
A user equipment (UE) and base station (BS) are equipped with processors that receive configurations and indications for port adaptation, enabling dynamic adjustment of CSI reports by determining muted ports and adapting CSI-RS resources based on these indications, maintaining or modifying CSI reports accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If semi-static port muting is used to save energy, then energy consumption is reduced, but the system cannot adapt to dynamic channel conditions and data traffic
Solution Approach 1:
The patent implements dynamic port adaptation by enabling the base station to switch between different port configurations (e.g., 8 ports, 4 ports, 2 ports) based on real-time channel conditions and data traffic requirements. This dynamic switching mechanism allows the system to adapt to varying operational needs while managing energy consumption, resolving the contradiction between fixed energy savings and flexible adaptation.
Solution Approach 2:
The system changes the port configuration parameter dynamically according to channel conditions and traffic demands. By adjusting the number of active ports from 8 to 4 or 2 based on measured channel quality and data traffic patterns, the system achieves both energy efficiency and adaptability, transforming a static parameter into a dynamic one that balances performance and power consumption.
2Adaptability or versatility
If dynamic port adaptation is implemented to reflect channel conditions, then adaptability is improved, but system complexity increases
Solution Approach 1:
The patent segments the port adaptation mechanism into distinct components: channel condition measurement module, data traffic analysis module, and port configuration switching module. Each segment handles a specific aspect of the adaptation process independently, making the overall complex system more manageable and easier to implement while maintaining high adaptability.
Solution Approach 2:
The system incorporates feedback mechanisms where channel state information and data traffic measurements are continuously monitored and fed back to the control unit. This feedback loop enables automatic adjustment of port configurations without requiring complex manual control, simplifying the system architecture while enhancing dynamic adaptability through closed-loop operation.
3Measurement precision
If more ports are used for CSI reports, then measurement precision is improved, but energy consumption increases
Solution Approach 1:
The patent applies partial action by activating only the necessary number of ports for CSI measurement based on current channel conditions and measurement requirements. Instead of always using all 8 ports, the system uses 4 or 2 ports when sufficient measurement precision can be achieved with fewer ports, thereby reducing energy consumption while maintaining adequate measurement accuracy for effective communication.
Solution Approach 2:
The system dynamically changes the number of active ports parameter in CSI measurement based on real-time assessment of channel conditions and measurement needs. By adjusting this parameter from 8 to 4 or 2 ports, the system achieves a balance between measurement precision and energy consumption, allowing high accuracy when needed and energy efficiency when sufficient precision can be obtained with fewer ports.
Data Source
AI summary
Methods and apparatuses for port adaptation indication are provided. A UE may receive a configuration associated with a channel state information (CSI) report. wherein the configuration indicates a number of ports for the CSI report (611): receive an indication associated with port adaptation (613): and generate the CSI report based on the configuration and the indication (615).