CSI Reporting Across Sub-Configurations With Lower Signaling Overhead
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Solution Overview
Problem
The increasing number of services and user equipment in wireless communication systems necessitates improved network and UE power saving, along with efficient methods for transmitting downlink signals to reduce energy consumption and signaling overhead.
Innovation Solution
A method and system for transmitting channel state information (CSI) reports with optimized power control offsets (PCO) values, allowing for common and differential reporting quantities to enhance network energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CSI report configuration includes multiple sub-configurations with individual report quantities, then measurement precision is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the report quantities into two categories: common report quantities (applied across all sub-configurations) and specific report quantities (applied individually to each sub-configuration). This segmentation allows the UE to report CSI for multiple sub-configurations with reduced signaling overhead by avoiding redundant transmission of common parameters.
Solution Approach 2:
The patent introduces a unified report quantity configuration that can be universally applied across multiple sub-configurations. This universal configuration enables a single set of report quantity parameters to serve multiple CSI measurement purposes, reducing the overall signaling overhead while maintaining measurement precision for each sub-configuration.
2Adaptability or versatility
If network supports more services and UEs, then adaptability is improved, but energy consumption increases
Solution Approach 1:
The patent merges the reporting of multiple sub-configurations into a unified CSI report structure. By combining common report quantities that apply across multiple sub-configurations into a single report, the network can support more services and UEs while reducing the energy consumption associated with processing and transmitting redundant CSI information.
Solution Approach 2:
The patent identifies and discards redundant signaling information by using common report quantities across multiple sub-configurations. The network recovers the necessary CSI measurement precision by selectively applying specific report quantities only where needed, thereby reducing overall energy consumption while maintaining adaptability.
Data Source
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AI summary
A user equipment (UE) performs receiving a CSI report configuration including a plurality of sub-configurations, determining a plurality of CSIs based on the plurality of sub-configurations, and transmitting the CSI report based on the plurality of CSIs. The CSI report configuration includes information on report quantities and information about a first report quantity to be commonly reported for the plurality of sub-configurations and a second report quantity to be reported for each of the plurality of sub-configurations from among the report quantities. The CSI report includes only one report quantity value common to the plurality of sub-configurations for the first report quantity and include respective report quantity values of the plurality of sub-configurations for the second report quantity.