MC-DCI Cell Association Mapping for Flexible Multi-Cell Scheduling
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Solution Overview
Problem
Existing technologies face challenges in efficiently scheduling data for multiple cells using a single Downlink Control Information (DCI), leading to inefficiencies and reduced scheduling flexibility.
Innovation Solution
A method for determining scheduling and indicating an association relationship between a value corresponding to first information and a scheduling cell identity, allowing terminals to accurately identify which cells are scheduled by Multi-Cell Downlink Control Information (MC-DCI) based on configured relationships, enhancing scheduling flexibility and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a single DCI is used to schedule data for multiple cells, then control information overhead is reduced, but scheduling flexibility and identification accuracy deteriorate
Solution Approach 1:
The patent segments the scheduling identification mechanism by introducing association relationships between first information values and scheduling cell identities. Each cell is assigned a specific identity, and the DCI contains first information that maps to these identities through configured associations, enabling precise identification of scheduled cells while maintaining compact DCI structure.
Solution Approach 2:
The network device performs preliminary configuration by establishing association relationships between first information values and scheduling cell identities before actual scheduling occurs. This pre-configuration allows the terminal to efficiently determine scheduled cells without requiring complex real-time analysis, thus maintaining scheduling flexibility while reducing control overhead.
2Productivity
If a single DCI schedules multiple cells, then resource allocation efficiency improves, but the complexity of determining scheduled cells increases
Solution Approach 1:
The patent introduces scheduling cell identity as an intermediary element that mediates between the first information in DCI and the actual cell identification. The association relationship between first information values and scheduling cell identities acts as a lookup table, simplifying the determination process for both network device and terminal while maintaining efficient resource allocation.
3Measurement precision
If association relationships are configured for multi-cell scheduling, then scheduling accuracy improves, but control signaling overhead increases
Solution Approach 1:
The patent applies local quality by configuring association relationships specifically for cells that require multi-cell scheduling, rather than uniformly across all cells. The first information in DCI contains only the necessary identification data for the scheduled cells, and the association relationships are maintained locally at the terminal for efficient lookup, minimizing overall control signaling overhead while achieving high scheduling accuracy.
Data Source
AI summary
A method for determining scheduling is performed by a terminal, and includes: determining a set of relationships corresponding to a first cell, wherein the set of relationships includes an association relationship between a value corresponding to first information and a scheduling cell identity; determining a first value corresponding to the first information received from the second cell; determining a scheduling cell identity corresponding to the first value based on the association relationship; and determining, based on a relationship between the scheduling cell identity corresponding to the first value and an identity of the second cell, whether the first cell is a cell scheduled by multi-cell scheduling Downlink Control Information (MC-DCI) received in the second cell.