IAB-DU Resource Block Sets with Reference RB Positioning
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Solution Overview
Problem
Determining resource block sets for Integrated Access and Backhaul Nodes (IAB Nodes) is challenging due to the need to avoid resource conflicts and improve communication efficiency, particularly when multiple carriers are configured for IAB-DU cells.
Innovation Solution
A method for determining resource block sets based on resource configuration information, including the position of reference resource blocks or carriers, to establish a start frequency position, thereby allowing for non-overlapping and efficient allocation of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RB sets are configured for IAB-DU cell with multiple carriers, then resource allocation flexibility is improved, but determining the reference frequency and avoiding resource conflicts becomes more complex
Solution Approach 1:
The patent changes the parameter used for RB set determination from absolute frequency positions to relative positions based on reference RBs. By defining RB sets through offsets from reference RBs rather than fixed frequency coordinates, the system achieves flexible resource allocation across multiple carriers while simplifying the determination process through relative positioning calculations.
2Ease of operation
If RB sets are determined based on absolute frequency positions, then resource allocation is simplified, but resource conflicts between MT and DU cannot be avoided
Solution Approach 1:
The patent introduces reference RBs as intermediary elements between the absolute frequency domain and RB set allocation. These reference RBs serve as mediators that enable relative positioning calculations, allowing the system to maintain simple determination procedures while achieving reliable resource conflict avoidance through the intermediary reference points.
Solution Approach 2:
The patent transitions from one-dimensional absolute frequency positioning to a two-dimensional approach using reference RBs as anchors with relative offsets. This dimensional change allows simultaneous achievement of simple determination (through standardized offset calculations) and reliable conflict avoidance (through carrier-specific reference RB selection).
Data Source
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AI summary
Provided are a resource block set, RB set, determination method, a communication node, and a storage medium. The RB set determination method includes: determining resource configuration information, where the resource configuration information includes at least one of the position of a reference resource block, RB, or the position of at least one carrier; determining a start frequency position according to the resource configuration information; and determining an RB set according to the start frequency position.