Dynamic PUCCH Repeat Transmission Resource Allocation
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Solution Overview
Problem
The existing Physical Uplink Control Channel (PUCCH) repeat transmission in NR systems lacks flexibility, leading to limited performance due to restrictions on resource allocation and transmission delays.
Innovation Solution
A method and apparatus for determining resource locations of PUCCH repeat transmissions, allowing for flexible resource allocation within the same time unit (slot or sub-slot) and using different spatial relationship information for improved reliability and reduced delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUCCH repeat transmission is implemented with fixed resource allocation, then transmission reliability is improved, but transmission flexibility is reduced
Solution Approach 1:
The patent implements dynamic resource allocation for PUCCH repeat transmissions by determining resource locations based on slot offsets and symbol positions rather than fixed predetermined resources. This allows the system to adapt resource allocation dynamically across multiple transmissions while maintaining reliability through structured repetition patterns.
Solution Approach 2:
The patent changes key parameters including slot offset values, symbol positions, and resource block allocations for different PUCCH repeat transmissions. By varying these parameters across repetitions, the system achieves both reliability through multiple transmissions and flexibility through parameter diversity.
2Device complexity
If PUCCH repeat transmission uses predetermined resource locations, then resource allocation is simplified, but transmission delay is increased
Solution Approach 1:
The patent performs preliminary determination of resource locations using slot offsets and symbol positions before actual PUCCH transmissions occur. This preliminary action enables efficient resource allocation without increasing transmission delay, as the resource locations are calculated in advance based on configured parameters rather than requiring real-time negotiation.
3Reliability
If PUCCH repeat transmission uses diverse spatial relationship information, then transmission reliability is improved, but system complexity is increased
Solution Approach 1:
The patent segments spatial relationship information into multiple distinct sets, each associated with different PUCCH repeat transmissions. This segmentation allows the system to use diverse spatial relationships for reliability while managing complexity through organized, separate configurations for each transmission instance.
Solution Approach 2:
The patent applies different spatial relationship information locally to each PUCCH repeat transmission based on its specific resource location and transmission characteristics. This local quality approach ensures optimal spatial configuration for each transmission while maintaining overall system manageability through localized rather than global complexity.
Data Source
AI summary
A Physical Uplink Control Channel (PUCCH) transmission method and apparatus, a device and a medium are provided. The PUCCH transmission method includes: acquiring PUCCH repeat transmission information; determining a resource location of each PUCCH repeat transmission; and transmitting the PUCCH based on the repeat transmission information and the resource location.