CSI Sub-Configuration Selection for Lower-Energy Channel Reporting
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Solution Overview
Problem
Existing CSI reporting methods fail to effectively handle scenarios where one CSI report configuration includes multiple sub-configurations, leading to inefficiencies and increased energy consumption in network-side devices.
Innovation Solution
A method for determining and reporting a target sub-configuration corresponding to CSI at a target CSI report occasion, allowing the terminal to selectively report CSI based on a set of valid sub-configurations, including all, default, or activated sub-configurations, thereby reducing energy consumption and improving communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one CSI report configuration includes multiple sub-configurations to handle dynamic network parameters, then the adaptability of CSI reporting is improved, but the complexity of determining which sub-configuration to report increases
Solution Approach 1:
The patent implements dynamic selection of sub-configurations based on real-time network conditions and spatial adaptation patterns. The terminal device dynamically determines which sub-configuration to report by evaluating spatial adaptation pattern indicators received from the network side, allowing the system to adapt to changing network parameters while maintaining manageable complexity through rule-based selection criteria
Solution Approach 2:
The patent changes the parameter of sub-configuration selection based on spatial adaptation patterns. Different sub-configurations are associated with different spatial adaptation patterns, and the terminal selects the appropriate sub-configuration by matching the current spatial adaptation pattern indicator, thereby resolving the contradiction between adaptability and determination complexity
2Reliability
If the terminal reports CSI for all sub-configurations, then the completeness of channel state information is improved, but the energy consumption of the terminal increases
Solution Approach 1:
The patent extracts and reports only the necessary CSI information based on the selected sub-configuration rather than reporting all possible sub-configurations. By determining a target sub-configuration through spatial adaptation pattern matching and reporting only that specific CSI, the terminal maintains information completeness for the current network state while significantly reducing energy consumption compared to reporting all sub-configurations
Solution Approach 2:
The patent applies partial action by reporting CSI for only one selected sub-configuration rather than all sub-configurations. This partial reporting approach is sufficient because the network side can determine the appropriate sub-configuration based on the spatial adaptation pattern indicator, thereby maintaining reliability while reducing terminal energy consumption
3Adaptability or versatility
If multiple sub-configurations are configured for different spatial adaptation patterns, then the versatility of network parameter handling is improved, but the difficulty of managing and coordinating these sub-configurations increases
Solution Approach 1:
The patent introduces spatial adaptation pattern indicators as an intermediary mechanism to manage multiple sub-configurations. The network side configures multiple sub-configurations each associated with a specific spatial adaptation pattern indicator, and the terminal uses these indicators to select the appropriate sub-configuration. This intermediary system simplifies the management complexity by providing clear mapping rules between spatial patterns and sub-configurations
Solution Approach 2:
The patent segments the CSI reporting system into multiple independent sub-configurations, each handling a specific spatial adaptation pattern. This segmentation allows the network to manage different parameter sets independently for different spatial scenarios, improving versatility while the clear segmentation boundaries reduce coordination complexity by preventing conflicts between overlapping configurations
Data Source
AI summary
A method for reporting a CSI report is provided. The method includes: determining, by a terminal according to target information, a target sub-configuration corresponding to CSI to be reported at a target CSI report occasion, where the target sub-configuration is one or more sub-configurations in a set of valid sub-configurations in a CSI report configuration, the set of valid sub-configurations includes at least one of: all sub-configurations in the CSI report configuration, one or more default sub-configurations in the CSI report configuration, or one or more activated sub-configurations in the CSI report configuration, and the target information includes at least one of: a target rule or target indication information; and reporting, by the terminal, a target CSI report at the target CSI report occasion, where the target CSI report includes CSI corresponding to the target sub-configuration.