Control Channel Resource Grouping Spatial Relation Configuration
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Solution Overview
Problem
Current wireless communication systems, such as 5G NR and LTE, face challenges in efficiently configuring and managing control channel resources, particularly in terms of spatial relations, which affects the overhead and flexibility of control channel transmission.
Innovation Solution
The proposed solution involves configuring and updating control channel resource groupings with associated spatial relations, allowing for simultaneous signaling and reduction of overhead by grouping physical uplink control channel (PUCCH) resources, using bitmaps or RRC signaling to indicate groupings and spatial relations, and applying spatial relations for control channel transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If control channel resources are configured individually with separate spatial relations, then spatial relation configuration is complete and accurate, but signaling overhead increases and configuration complexity increases
Solution Approach 1:
The patent groups multiple control channel resources (PUCCH resources) into resource groups, where each group is associated with a single spatial relation. This merging approach allows multiple resources to share the same spatial relation configuration, thereby reducing signaling overhead and simplifying configuration management while maintaining complete spatial relation coverage for all control channel resources.
2Productivity
If control channel resources are grouped with spatial relations, then signaling overhead is reduced, but flexibility in spatial relation management decreases
Solution Approach 1:
The patent enables dynamic switching between different spatial relations for control channel resource groups through MAC CE signaling. This allows the system to adapt spatial relation configurations in real-time based on channel conditions and traffic requirements, maintaining flexibility despite the grouping structure. The dynamic nature allows transitioning from static grouped configurations to adaptive spatial relation management.
3Loss of time
If individual control channel resources are configured with spatial relations, then spatial relation precision is high, but configuration time increases
Solution Approach 1:
The patent segments control channel resources into logical groups based on their spatial relation characteristics. This segmentation allows the system to apply spatial relations at the group level rather than individual resource level, significantly reducing configuration time. The segmentation maintains precision by ensuring that resources within each group share similar spatial characteristics, making group-level configuration equally effective as individual configuration for those resources.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for control channel resource grouping and spatial relation configuration. Aspects of the present disclosure provide a method of wireless communication by a user equipment (UE). The method generally includes receiving an indication of one or more groupings of one or more control channel resources within a configured bandwidth. Each grouping is associated with a spatial relation. The UE applies a spatial relation for a control channel transmission using one or more control channel resources in a grouping of the one or more groupings. The grouping is associated with the spatial relation.