Sub-slot PUCCH Resource Configuration for Slot Boundary Avoidance
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficiently configuring physical uplink control channel (PUCCH) resources, particularly when these resources cross slot boundaries, leading to potential network performance issues due to interference and sub-optimal usage of available resources.
Innovation Solution
User equipment (UE) adjusts uplink transmissions by determining if a sub-slot PUCCH resource crosses a slot boundary and modifies it accordingly, ensuring that the transmission does not cross the boundary, thereby avoiding interference and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sub-slot PUCCH resources are configured to allow cross-slot transmissions, then resource utilization flexibility is improved, but interference and network performance issues occur
Solution Approach 1:
The slot structure is segmented into multiple sub-slots, and the patent configures PUCCH resources specifically within sub-slots rather than allowing cross-slot transmissions. This segmentation approach maintains flexibility within sub-slot boundaries while preventing harmful cross-slot interference, resolving the contradiction between adaptability and interference reduction.
Solution Approach 2:
The patent applies preliminary anti-action by configuring PUCCH resources to stay within sub-slot boundaries before cross-slot transmission can occur. The network device explicitly configures time domain resource information that prevents the PUCCH from crossing slot boundaries, thereby preemptively avoiding interference issues while maintaining resource flexibility within the configured boundaries.
2Object-affected harmful factors
If PUCCH resources are restricted to not cross slot boundaries, then interference is minimized, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic resource allocation within sub-slots, where the network device can flexibly configure PUCCH time domain resources based on actual traffic conditions and channel states. This dynamic configuration within sub-slot boundaries maintains high resource utilization efficiency while preventing cross-slot interference, resolving the contradiction between interference minimization and productivity.
3Adaptability or versatility
If sub-slot PUCCH resources are configured for uplink transmission, then transmission flexibility is improved, but slot boundary crossing issues arise
Solution Approach 1:
The patent applies local quality by configuring PUCCH resources with specific time domain parameters that are optimized for sub-slot-level transmissions. The network device provides precise time domain resource information that ensures PUCCH transmissions remain within sub-slot boundaries, maintaining both transmission flexibility and slot boundary compliance simultaneously.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical uplink control channel (PUCCH) resource configuration including a plurality of sub-slot PUCCH resources for the UE. The UE may determine that a sub-slot PUCCH resource, of the plurality of sub-slot PUCCH resources, for use with an uplink transmission crosses a slot boundary. The UE may adjust the uplink transmission based at least in part on determining that the sub-slot PUCCH resource crosses the slot boundary. Numerous other aspects are provided.