Wireless Communication Node CSI Reporting for Multi-Cell DCI Scheduling
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Solution Overview
Problem
Existing CSI reporting trigger schemes in NR systems are no longer applicable when one DCI schedules PUSCH/PDSCH transmissions for a plurality of cells, leading to hardware complexity and cost issues.
Innovation Solution
A unified design scheme for CSI reporting that adjusts trigger states based on the number of cells scheduled by the DCI, reducing redundant overhead and improving scheduling flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing CSI reporting trigger schemes are used in NR systems, then CSI reporting can be implemented, but hardware complexity and cost increase when one DCI schedules PUSCH/PDSCH for multiple cells
Solution Approach 1:
The patent applies universality by designing a unified CSI reporting trigger mechanism that works for both single-cell and multi-cell scheduling scenarios. The DCI format is designed to be universally applicable, with a trigger field that can indicate different trigger states depending on the scheduling context, eliminating the need for separate hardware implementations for different scenarios
Solution Approach 2:
The patent implements dynamics by making the trigger state indication adaptive based on the number of scheduled cells. When one DCI schedules multiple cells, the system dynamically selects from multiple trigger state sets (first trigger state set for single cell, second trigger state set for multiple cells), allowing the hardware to flexibly handle different configurations without requiring separate dedicated paths
2Adaptability or versatility
If multiple trigger state sets are maintained for different cell scenarios, then scheduling flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent merges multiple trigger state sets into a unified structure where the DCI trigger field can indicate different trigger states based on the scheduling scenario. Instead of maintaining completely separate trigger mechanisms for single-cell and multi-cell cases, the system combines them into a single trigger field that dynamically selects the appropriate trigger state set, reducing redundant signaling
Solution Approach 2:
The patent applies local quality by making different parts of the trigger state sets have different structures based on the scheduling scenario. The first trigger state set (for single cell) and second trigger state set (for multiple cells) have different configurations tailored to their specific use cases, allowing optimized signaling for each scenario while maintaining overall system flexibility
Data Source
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AI summary
The present application discloses a method and apparatus use in a node for wireless communication node. The node receives a first message set; receives a first DCI on a first cell; and sends at least a first CSI Reporting on a PUSCH of a second cell. The first message set comprises a first message, the first message is used to indicate a first trigger state set, the first message being configured to the first cell, the first trigger state set comprising at least one trigger state; the first DCI is used to schedule a PUSCH on at least one cell, the second cell being one cell of at least one cell; the first DCI comprises a first domain, and the first domain is used to trigger the first CSI Reporting; the first domain indicates a target trigger state from the dependent trigger set, and the target trigger state is used to configure the first CSI Reporting; the dependent trigger state set is related to at least one cell. This approach improves flexibility and CSI transmission reliability.