CSI Report Sub-Configuration Activation for Lower Wireless Overhead
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing channel state information (CSI) reporting to balance communication capacity with energy consumption at the base station, particularly in next-generation networks like 5G and beyond.
Innovation Solution
The method involves configuring CSI reporting with sub-configurations that can be selectively activated based on specific conditions, allowing for reduced overhead and energy-efficient CSI reporting by user equipment (UE) through controlled activation of CSI report configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CSI reporting with multiple sub-configurations is implemented to enhance communication capacity, then the communication performance is improved, but the overhead and energy consumption at the base station increase
Solution Approach 1:
The patent implements dynamic activation and deactivation of CSI report configurations based on communication conditions. The base station can selectively activate only the necessary sub-configurations (e.g., first CSI report configuration for beam management, second CSI report configuration for channel quality) depending on whether beamforming is being performed, thereby adapting the CSI reporting overhead to the actual communication needs and reducing energy consumption when full CSI reporting is not required
Solution Approach 2:
The patent divides CSI reporting into multiple independent sub-configurations (first CSI report configuration and second CSI report configuration), each handling different aspects of channel state information. This segmentation allows the base station to selectively activate only the required sub-configurations for specific operations (e.g., activating only beam management-related sub-configurations during beam sweeping), thereby reducing overall overhead and energy consumption while maintaining communication capacity when needed
2Measurement precision
If multiple CSI report configurations are configured to provide comprehensive channel state information, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent employs dynamic activation control where the base station selectively enables or disables specific CSI report configurations based on current communication requirements. This dynamic approach maintains comprehensive measurement capabilities when needed while simplifying the active configuration set during normal operation, thereby managing device complexity without sacrificing measurement precision when high accuracy is required
Solution Approach 2:
The patent pre-configures multiple CSI report configurations with distinct functions (e.g., beam management, channel quality, interference measurement) but keeps them inactive by default. The base station activates only the necessary configurations in advance of specific operations, allowing the system to maintain comprehensive measurement capabilities without the constant overhead of managing all configurations simultaneously, thus reducing perceived device complexity
Data Source
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AI summary
The objective of the present disclosure is to control the state of sub-configurations of a channel state information (CSI) report configuration in a wireless communication system. This method, performed by a terminal, may comprise the steps of: receiving configuration information for at least one CSI report including a plurality of sub-configurations; receiving a message including information related to activation for each of the plurality of sub-configurations; generating at least one CSI on the basis of at least one activated sub-configuration from among the plurality of sub-configurations; and transmitting a CSI report including the at least one CSI.