Multi-Cell Dynamic Resource Indication for IAB Distributed Units
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing resource indication methods fail to account for scenarios where a DU (Distributed Unit) of an IAB (Integrated Access and Backhaul) node has multiple cells, leading to inefficiencies in resource allocation and availability indication.
Innovation Solution
A method and apparatus for resource indication that involves a first node receiving indication information from a second node to determine the availability of dynamic resources across multiple cells, using preset rules or configuration information to accurately indicate resource availability, and employing various sub-information formats to optimize signaling overheads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resource indication is performed for a single cell, then the indication method is simple, but it cannot support scenarios where DU has multiple cells
Solution Approach 1:
The patent segments the resource indication by introducing a cell indicator field that separately identifies which cell the resource indication applies to. This allows the system to handle multiple cells by adding a segmentation dimension (cell identification) to the indication mechanism, enabling multi-cell support while keeping the core indication logic reusable across different cell contexts.
2Adaptability or versatility
If dynamic resource availability is indicated for multiple cells, then resource allocation flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent creates a universal resource indication mechanism that can function for both single-cell and multi-cell scenarios. The cell indicator field acts as a universal key that routes the resource indication to the appropriate cell, allowing the same indication structure to serve multiple cells without requiring separate indication mechanisms for each cell, thus controlling signaling overhead while maintaining flexibility.
3Measurement precision
If separate resource configuration is used for each cell, then resource allocation precision is improved, but configuration complexity increases
Solution Approach 1:
The patent introduces a cell indicator as an intermediary element that connects the resource indication to the specific cell. This intermediary allows precise targeting of resources to individual cells without requiring separate configuration procedures for each cell, thereby maintaining allocation precision while reducing configuration complexity through a unified indication approach.
Data Source
AI summary
A resource indication method and apparatus are provided, to implement resource indication in a case in which a distributed unit (DU) has a plurality of cells. The method includes: a first node receives indication information from a second node, where the indication information is used to indicate availability of a dynamic resource in first resources corresponding to P cells, the first resource is a transmission resource used by the first node to communicate with a third node, the second node is an upper-level node of the first node, and the third node is a lower-level node of the first node. The first node determines the availability of the dynamic resource in the first resources of the P cells based on the indication information, where 1≤P≤N.