PUCCH PRB Determination for Mixed Priority UCI
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Solution Overview
Problem
In wireless communication networks, efficiently multiplexing uplink control information with mixed priority in a physical uplink channel is challenging, particularly in determining the optimal number of physical resource blocks (PRBs) for PUCCH transmission.
Innovation Solution
A method and apparatus that determine the number of PRBs for PUCCH transmission by receiving information on code rates associated with high-priority (HP) and low-priority (LP) UCI bits, using these codes rates, along with the number of multiplexed bits and a maximum number of PRBs, to efficiently allocate resources for PUCCH transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of PRBs for PUCCH transmission is increased to accommodate mixed priority UCI bits, then the capacity to transmit both high-priority and low-priority control information is improved, but the resource allocation complexity and difficulty of determining optimal PRB allocation increases
Solution Approach 1:
The patent segments the UCI bits into high-priority and low-priority groups, and applies separate code rates to each group. This segmentation allows independent optimization of each priority level's resource allocation, simplifying the overall determination process while accommodating mixed priority traffic efficiently
Solution Approach 2:
The patent changes the code rate parameter differently for high-priority and low-priority UCI bits. By adjusting code rates as a variable parameter based on priority level, the system can flexibly allocate resources without complex PRB calculations, resolving the contradiction between capacity and allocation complexity
2Reliability
If separate code rates are applied to high-priority and low-priority UCI bits, then the reliability of transmission for each priority level is improved, but the computational complexity of determining PRB allocation increases
Solution Approach 1:
The patent applies different code rate qualities locally to high-priority and low-priority UCI bits respectively. Each priority level receives appropriately optimized coding parameters for its specific requirements, improving overall reliability while maintaining manageable computational complexity through localized optimization
Solution Approach 2:
The patent dynamically adjusts code rates based on the priority classification of UCI bits. This dynamic parameter adjustment allows the system to adapt transmission reliability to priority levels without requiring complex static PRB allocation calculations
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for determining a number of PRBs for a PUCCH transmission. One method includes receiving information indicating a first code rate and a second code rate. The first code rate is associated with multiplexed HP UCI bits and the second code rate is associated with multiplexed LP UCI bits. The method includes determining a number of PRBs for a PUCCH transmission based at least on the first code rate, a number of multiplexed HP UCI bits, the second code rate, a number of multiplexed LP UCI bits, and a maximum number of PRBs for the PUCCH transmission. The method includes transmitting the PUCCH transmission in the number of PRBs.