Wireless Communication BWP Switching with Unified DCI Fields
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing diverse application scenarios with varying performance requirements, particularly in DCI field design for multi-cell and single-cell PUSCH/PDSCH scheduling, leading to increased hardware complexity and signaling overhead.
Innovation Solution
A unified design solution for DCI field interpretation across different scenarios, including multi-cell and single-cell scheduling, which reduces hardware complexity and signaling overhead by indicating BWP switching through a single DCI, utilizing K1 information bits to determine BWP allocation based on the number of BWPs in a target cell set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate DCI field designs are used for multi-cell and single-cell scheduling scenarios, then each scenario can be optimized independently, but device complexity and hardware implementation complexity increase
Solution Approach 1:
The patent applies a unified DCI field design that works across both multi-cell and single-cell scheduling scenarios. The same DCI fields and interpretation rules are used regardless of the scheduling scenario, allowing the system to maintain adaptability to different scenarios while using a single standardized design approach that reduces hardware complexity and implementation burden.
2Adaptability or versatility
If separate DCI field designs are used for multi-cell and single-cell scheduling scenarios, then each scenario can be optimized independently, but signaling overhead increases
Solution Approach 1:
The patent employs a unified DCI field design that serves both multi-cell and single-cell scheduling scenarios with the same signaling structure. This eliminates the need for separate signaling designs, reducing overall signaling overhead while maintaining the ability to optimize for different scenarios through unified interpretation rules and field meanings.
3Device complexity
If unified DCI field design is used across different scenarios, then hardware complexity and signaling overhead are reduced, but flexibility in optimizing for specific scenarios decreases
Solution Approach 1:
The patent achieves scenario optimization through unified DCI field design by using consistent field interpretations and scheduling rules that work across both multi-cell and single-cell scenarios. The unified design includes standardized BWP indicator fields, resource allocation fields, and scheduling rules that can be applied universally while still providing scenario-specific optimization benefits through the same standardized interface.
4Quantity of substance
If unified DCI field design is used across different scenarios, then redundant signaling overhead is reduced, but the ability to customize signaling for specific scenarios decreases
Solution Approach 1:
The patent eliminates redundant signaling overhead by using a unified DCI field design that works for both multi-cell and single-cell scheduling. The same DCI fields, bit allocations, and interpretation rules are used across scenarios, removing the need for duplicate or scenario-specific signaling elements while maintaining the ability to achieve scenario-specific performance through the unified standardized approach.
Data Source
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AI summary
Disclosed in the present application are a method and apparatus for wireless communication. The method comprises: a first node receiving first signaling, the first signaling comprising a first field, the first signaling scheduling a first cell set, and the first field of the first signaling being used for indicating a first BWP in a first cell; and in response to receiving the first signaling, operating a first signal in a BWP of each cell in the first cell set, the BWP being the first BWP for the first cell, candidates of the first cell set comprising a plurality of cell sets, at least one of the plurality of cell sets comprising a plurality of cells, the first cell being a cell in the first cell set, and the operation being receiving and the first BWP being a downlink BWP, or the operation being sending and the first BWP being an uplink BWP. The present application can schedule a plurality of cells and indicate BWP switching by means of one DCI, and thus improves flexibility, reduces signaling overhead, and quickly adapts to changes in environments and scenarios.