Terminal CORESET Selection for Beam Failure Detection
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Solution Overview
Problem
In new radio (NR) communication systems, the challenge arises when the number of CORESETs configured for beam failure detection exceeds the number of beam failure detection resources (BFD RS) supported by the terminal, making it difficult to select appropriate RS resources for detecting beam failures.
Innovation Solution
The method involves determining and selecting target CORESETs that match the number of BFD RS resources supported by the terminal, with RS resources corresponding to the TCI states of QCLs of these target CORESETs being designated as BFD RS resources, thereby ensuring effective beam failure detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of CORESETs configured for beam failure detection is increased to improve detection reliability, then the reliability of beam failure detection is improved, but the device complexity increases and the terminal cannot support all configured resources
Solution Approach 1:
The patent extracts and identifies a specific subset of CORESETs (target CORESETs) from the complete set of configured CORESETs. The terminal determines which CORESETs to use for beam failure detection by selecting target CORESETs based on their association with downlink bandwidth parts, thereby managing the complexity of resource configuration while maintaining detection reliability.
2Adaptability or versatility
If the number of BFD RS resources is increased to match the number of CORESETs, then the beam failure detection capability is improved, but the terminal's supported resource limit is exceeded
Solution Approach 1:
The patent applies partial action by having the terminal use only a subset of the configured BFD RS resources for actual beam failure detection. Specifically, the terminal determines target CORESETs and uses only the BFD RS resources associated with these target CORESETs, rather than attempting to use all configured BFD RS resources, thus working within terminal capability limits.
3Area of stationary object
If all configured CORESETs are used for beam failure detection, then the coverage area is improved, but the terminal cannot process all resources due to support limits
Solution Approach 1:
The patent segments the set of configured CORESETs into target CORESETs and non-target CORESETs. The terminal processes only the target CORESETs for beam failure detection purposes, dividing the overall resource set into manageable segments that align with terminal processing capabilities while still providing adequate coverage detection.
Data Source
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AI summary
The present invention relates to a beam failure detection resource allocation method and device, and a storage medium. The beam failure detection resource allocation method comprises: determining coresets configured for a terminal by a network apparatus; if the number of the coresets is greater than the number of beam failure detection resources supported by the terminal, selecting target coresets according to the number of the beam failure detection resources; and taking a reference signal resource corresponding to a transmission configuration indication state of a quasi co-location of the selected target coresets as a reference signal resource for beam failure detection, Implementing an embodiment of the present invention realizes determination of an RS resource for beam failure detection.