Terminal Multi-Cell Scheduling Control Unit
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Solution Overview
Problem
In existing radio communication systems, when scheduling PDSCH/PUSCH for multiple cells using a single DCI, it is unclear which cell to monitor, which DCI to monitor, and there are unclear restrictions on simultaneous monitoring of multiple DCIs, leading to inappropriate operation of terminals and base stations.
Innovation Solution
A terminal is configured with a reception unit to receive configuration information for scheduling multiple cells using single control information, and a control unit that does not assume simultaneous monitoring of specific control information between scheduling source and destination cells, or within these cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If single DCI is used to schedule multiple cells, then scheduling efficiency is improved, but clarity of monitoring configuration deteriorates
Solution Approach 1:
The patent segments the monitoring configuration by introducing a specific field in DCI that indicates which cell's monitoring configuration should be applied. This divides the otherwise ambiguous single DCI into a structured format with clear cell-specific monitoring instructions, resolving the contradiction between using single DCI for efficiency and maintaining clarity of configuration.
2Adaptability or versatility
If simultaneous monitoring of multiple DCI is allowed, then scheduling flexibility is improved, but operational reliability deteriorates
Solution Approach 1:
The patent applies preliminary anti-action by pre-defining restrictions on simultaneous monitoring of multiple DCI through configuration parameters. The terminal is configured with explicit rules about which DCI can be monitored simultaneously, preventing operational conflicts before they occur. This maintains scheduling flexibility while ensuring reliability by avoiding ambiguous simultaneous monitoring scenarios.
Data Source
AI summary
A terminal includes: a reception unit configured to receive configuration information on scheduling for multiple cells by single control information; and a control unit configured not to assume simultaneous monitoring of at least two pieces of specific control information between a scheduling source cell and a scheduling destination cell in the scheduling, in the scheduling source cell, or in the scheduling destination cell.