User Terminal PUCCH Resource Mapping for Multiple CSI Reports
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Solution Overview
Problem
In future radio communication systems, user terminals face challenges in properly configuring uplink control channel resources for transmitting multiple CSIs, leading to improper selection of resources for CSI reporting.
Innovation Solution
A user terminal is equipped with a receiving section to receive resource information and a control section to select uplink control channel resources based on configuration identifiers, using rules to determine a single or multiple CSI PUCCH resources for proper transmission of CSIs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple CSI reporting configurations are supported, then CSI reporting capability is improved, but resource selection complexity increases
Solution Approach 1:
The patent segments the resource selection process by introducing a mapping relationship between multiple CSI reporting configurations and a limited set of PUCCH resources. Each CSI reporting configuration is associated with specific resource indices through predefined mapping rules, dividing the complex selection task into manageable segments based on configuration IDs and resource groups.
Solution Approach 2:
The patent changes the selection parameters from direct resource identification to indirect mapping through configuration IDs. By using configuration identifiers and their associated resource index mappings, the system transforms the resource selection problem into a parameter-based lookup and selection process, reducing the complexity of managing multiple CSI reporting configurations.
2Reliability
If proper resource configuration is implemented, then CSI transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the mapping relationships between CSI reporting configurations and PUCCH resources during system setup. The network side pre-assigns resource indices to configuration IDs, and the terminal stores these mappings in advance, so that during actual CSI transmission, the terminal can directly lookup and use the pre-determined resources without complex real-time decision-making.
Solution Approach 2:
The patent introduces configuration IDs and their associated resource index mappings as intermediaries between the CSI reporting requirements and the physical PUCCH resources. This intermediary layer simplifies the relationship management by providing a structured mapping table that mediates between multiple reporting configurations and the limited pool of available PUCCH resources.
Data Source
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AI summary
A user terminal, according to the present invention, has a receiving section that receives resource information, which indicates a single or a plurality of uplink control channel resources, per configuration identifier related to channel state information (CSI) reporting, and a control section that selects an uplink control channel resource to use to transmit a plurality of CSIs, based on the resource information.