Sub-Slot PUCCH Resource Determination for Multiple In-Slot Transmissions
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Solution Overview
Problem
Existing communication systems support PUCCH transmission only in units of slots, leading to relatively low transmission efficiency.
Innovation Solution
Determine PUCCH resources in units of sub-slots, allowing for PUCCH transmission within sub-slots, and utilize PUCCH resource indication fields and higher layer signaling to configure PUCCH resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PUCCH resources are determined in units of slots, then the system maintains simple resource allocation, but the PUCCH transmission efficiency is relatively low
Solution Approach 1:
The patent divides a slot into multiple sub-slots and determines PUCCH resources in units of sub-slots rather than entire slots. This segmentation allows multiple PUCCH transmissions within a single slot, thereby improving transmission efficiency without requiring complete reconfiguration of the resource allocation system
Solution Approach 2:
The patent introduces a new dimension of resource determination by defining sub-slot based resource allocation. The start symbol of PUCCH resources is defined as a relative start symbol with respect to the start position of the sub-slot, creating a hierarchical resource structure that enables finer-grained control while maintaining overall system simplicity
2Productivity
If multiple PUCCH transmissions are enabled within a slot, then transmission efficiency improves, but resource configuration overhead increases
Solution Approach 1:
The patent configures multiple PUCCH resource sets at the higher layer, where each resource set can be reused across multiple sub-slots. This multi-functional approach allows the same resource configuration to serve multiple purposes and time periods, enabling multiple PUCCH transmissions within a slot without proportionally increasing configuration overhead
Solution Approach 2:
The patent performs preliminary configuration of PUCCH resource sets through higher layer signaling before actual transmission. By pre-configuring multiple resource sets that can be applied to multiple sub-slots, the system prepares reusable resource templates that reduce the need for frequent reconfiguration, thereby enabling efficient multiple transmissions without excessive overhead
Data Source
AI summary
A method for PUCCH resource determination and a communication device are provided. The method includes: determining a PUCCH resource and determining a sub-slot where a PUCCH is to be transmitted; and determining a resource used for transmitting the PUCCH in the sub-slot according to the PUCCH resource.