PUCCH Resource Multiplexing for High Priority Uplink Control
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently multiplexing high priority acknowledgments/negative acknowledgments and scheduling requests with low priority communications, leading to suboptimal network performance and resource usage.
Innovation Solution
A method and apparatus for determining a physical uplink control channel resource based on the summation of bits in high priority acknowledgments/negative acknowledgments, high priority scheduling requests, and low priority communications, allowing for the identification and transmission of a suitable format for the payload that includes all communications within the same resource.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high priority A/N and HP SR are transmitted separately from LP communication, then reliability of high priority data is improved, but resource efficiency and network performance deteriorate due to multiple transmissions occupying separate resources
Solution Approach 1:
The patent merges high priority A/N, HP SR, and LP communication into a single PUCCH transmission. The UE determines a PUCCH resource that can accommodate all three types of data simultaneously, multiplexing them in the same uplink control channel resource. This combining approach maintains the reliability of high priority data while improving resource efficiency by eliminating the need for separate transmissions.
2Reliability
If multiple separate PUCCH resources are allocated for HP A/N, HP SR, and LP communication, then transmission reliability is improved, but device complexity and network resource usage increase
Solution Approach 1:
The patent reduces device complexity by determining a single PUCCH resource that accommodates all high priority and low priority communications together, rather than managing multiple separate resources. The UE identifies one appropriate PUCCH format and transmits all data types in a unified manner, simplifying the resource management process while maintaining transmission reliability.
3Reliability
If high priority and low priority communications use separate time resources, then interference between priorities is reduced, but time efficiency and overall communication efficiency deteriorate
Solution Approach 1:
The patent eliminates time domain overlap by multiplexing high priority A/N, HP SR, and LP communication simultaneously in the same PUCCH resource. This approach achieves both separation of priorities through appropriate resource selection and maximum time efficiency by transmitting all data in a single uplink opportunity, resolving the contradiction between interference reduction and time efficiency.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a physical uplink control channel (PUCCH) resource to be used for transmitting a PUCCH communication including a high priority (HP) acknowledgement/negative acknowledgement (A/N), an HP scheduling request (SR), and a low priority (LP) PUCCH communication. The PUCCH resource is determined based at least in part on a summation of a quantity of bits in the HP A/N, a quantity of bits in the HP SR, and a quantity of bits in the LP PUCCH communication. The UE may identify a PUCCH format configured for the PUCCH resource and transmit the PUCCH communication in the PUCCH resource based at least in part on the PUCCH format. A payload of the PUCCH communication includes the HP A/N, the HP SR, and the LP PUCCH communication. Numerous other aspects are described.