VRB-to-PRB Bundle Mapping for Complete NR Resource Allocation
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Solution Overview
Problem
Existing VRB-to-PRB mapping methods in NR technology often result in inconsistent sizes between VRB and PRB bundles, leading to incomplete mapping.
Innovation Solution
A resource mapping method that determines data for the PDSCH/PUSCH channel, maps data to VRBs, and then maps VRBs to PRBs using a specific scheme that ensures consistent bundle sizes, including fixed mappings and interleaved mappings based on bundle indexes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interleaved mapping is used for VRB to PRB, then resource distribution is improved, but bundle size consistency cannot be guaranteed when Nbundle is not a multiple of P
Solution Approach 1:
The patent segments the VRB bundles into multiple groups (first group and second group) based on whether their indices are multiples of P. This segmentation allows different mapping strategies to be applied to different segments, ensuring that each segment can be properly mapped while maintaining overall resource distribution benefits.
Solution Approach 2:
The patent changes the mapping parameter strategy based on the bundle index parameter. When a VRB bundle index is a multiple of P, non-interleaved mapping is used; otherwise, interleaved mapping is used. This parameter-based differentiation resolves the contradiction by adapting the mapping approach to the specific bundle characteristics.
2Device complexity
If non-interleaved mapping is used for VRB to PRB, then mapping simplicity is improved, but resource distribution and interleaving benefits are lost
Solution Approach 1:
The patent applies different mapping qualities to different VRB bundles based on their index characteristics. VRB bundles with indices that are multiples of P receive simple non-interleaved mapping, while others receive interleaved mapping. This local differentiation optimizes both simplicity and resource distribution without requiring complete complexity throughout the system.
3Adaptability or versatility
If VRB bundle size does not match PRB bundle size, then mapping flexibility is reduced, but the mapping process cannot be completed
Solution Approach 1:
The patent performs preliminary classification of VRB bundles into groups based on their index properties before the actual mapping process. This preliminary action ensures that bundles are properly categorized and assigned to appropriate mapping strategies, preventing size mismatch issues before they occur and guaranteeing mapping completion.
Data Source
AI summary
Disclosed by the present application are a resource mapping method and apparatus and device, comprising: determining to-be-sent data hosted on a data-channel physical downlink shared channel (PDSCH)/physical uplink shared channel (PUSCH); mapping said to-be-sent data to a virtual resource block (VRB); mapping the virtual resource block to a physical resource block (PRB) in resource block (RB) bundle units. Using the present application, it is possible to prevent the problem of the size of a virtual resource block bundle being inconsistent with the size of a physical resource block bundle, thus causing it to be impossible to map the virtual resource block to the physical resource block.