Flexible CORESET Configurations for HARQ Feedback Optimization
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently allocating and configuring resources, leading to reduced availability and misinterpretation of resource usage, which affects data rates, reliability, and performance.
Innovation Solution
The implementation of flexible control resource sets (CORESET) configurations with varying periodicity and offsets, along with hybrid automatic repeat request (HARQ) feedback mechanisms, to optimize resource utilization and reduce overhead in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If resource configurations are exchanged between devices, then communication setup is enabled, but valuable resources are consumed and fewer resources remain available for other applications
Solution Approach 1:
The patent extracts the essential configuration information from detailed resource configurations. Instead of exchanging complete resource configuration sets, the system identifies and exchanges only the critical parameters needed for proper resource allocation and interpretation, thereby reducing the resource overhead while maintaining operational effectiveness.
Solution Approach 2:
The patent inverts the traditional approach by having devices declare their resource requirements and capabilities first, and then the network allocates resources based on these declarations. This reverse approach eliminates the need for extensive configuration exchange, as resources are assigned based on pre-declared needs rather than pre-configured assignments.
2Reliability
If detailed resource configurations are exchanged, then proper resource allocation is achieved, but resource overhead increases and data rates decrease
Solution Approach 1:
The patent segments resource configurations into hierarchical levels: core essential parameters, optional parameters, and device-specific parameters. Only the essential parameters are exchanged between devices, while other parameters are determined locally or through separate mechanisms. This segmentation maintains allocation accuracy for critical resources while reducing overall configuration overhead.
Solution Approach 2:
The patent dynamically changes the level of configuration detail exchanged based on network conditions, device capabilities, and resource availability. Instead of always exchanging complete configurations, the system adapts the configuration exchange to include only the necessary parameters for current operational requirements, thereby improving data rates while maintaining sufficient allocation accuracy.
3Productivity
If resource configurations are exchanged frequently, then resource utilization is optimized, but overhead increases and performance deteriorates
Solution Approach 1:
The patent implements periodic resource configuration updates at optimized intervals rather than continuous or frequent exchanges. Devices exchange configuration information at predetermined periods or triggered by specific events, reducing overhead while maintaining adequate resource utilization. The periodicity is adjusted based on network conditions and resource usage patterns.
Solution Approach 2:
The patent incorporates feedback mechanisms where devices report resource usage status and performance metrics, and the network uses this feedback to determine when configuration updates are actually needed. This feedback-driven approach optimizes the timing and frequency of configuration exchanges, reducing unnecessary overhead while maintaining efficient resource utilization when conditions warrant updates.
Data Source
AI summary
An apparatus is configured to be employed within a user equipment (UE) device. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to identify a plurality of monitoring occasions for a set of flexible control resource sets (CORESET); determine bit ordering for the plurality of monitoring occasions; generate hybrid automatic repeat request (HARQ) feedback based on the received downlink transmission; and incorporate the ordered plurality of monitoring occasions into the HARQ feedback.