Multiplexing Priority-Based SR and HARQ-ACK in PUCCH Format 1
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently multiplexing scheduling requests (SR) and hybrid automatic repeat request acknowledgments (HARQ-ACK) with different priorities and physical uplink control channel (PUCCH) formats, leading to suboptimal performance in resource allocation and energy utilization.
Innovation Solution
The method involves multiplexing an SR with a first priority and a first PUCCH format with a HARQ-ACK of a second priority and a second PUCCH format to form a multiplexed SR and HARQ-ACK, and transmitting this using a sequence in a PUCCH format 1 resource, where the sequence is determined based on whether the SR is a positive or negative value, allowing for improved resource utilization and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SR and HARQ-ACK with different priorities and PUCCH formats are multiplexed using existing methods, then transmission can be achieved, but resource allocation efficiency and energy utilization are suboptimal
Solution Approach 1:
The patent changes the parameter of PUCCH format selection by dynamically choosing between PUCCH format 0 and format 1 based on the priority relationship between SR and HARQ-ACK. When SR priority equals or exceeds HARQ-ACK priority, PUCCH format 0 is used; otherwise, PUCCH format 1 is used. This parameter change optimizes both resource allocation efficiency and energy utilization by matching the appropriate format to the priority requirements.
Solution Approach 2:
The patent introduces dynamic adaptability by making the PUCCH format selection variable rather than fixed. The system dynamically adjusts the multiplexing approach based on real-time priority conditions, enabling optimal resource allocation and energy efficiency under different transmission scenarios.
2Adaptability or versatility
If different PUCCH formats are used for SR and HARQ-ACK, then transmission flexibility is improved, but multiplexing complexity increases
Solution Approach 1:
The patent manages multiplexing complexity by establishing a clear parameter-based decision rule for PUCCH format selection. The straightforward comparison of priority values determines the format choice, providing a simple yet effective mechanism that maintains transmission flexibility without excessive complexity.
Solution Approach 2:
The patent applies preliminary action by pre-defining the multiplexing rules and format selection criteria before actual transmission occurs. This upfront establishment of protocols reduces real-time processing complexity while preserving adaptability to different priority scenarios.
3Use of energy by moving object
If SR and HARQ-ACK are multiplexed in PUCCH format 1 resource, then energy efficiency is improved, but sequence determination complexity increases
Solution Approach 1:
The patent simplifies sequence determination by changing the approach to use cyclic shift values directly derived from priority comparisons rather than complex sequence generation. This parameter transformation maintains energy efficiency while reducing the complexity of sequence determination.
Solution Approach 2:
The patent introduces cyclic shift values as an intermediary element that simplifies the relationship between priority information and sequence selection. This intermediary mechanism makes sequence determination more straightforward while maintaining the energy efficiency benefits of PUCCH format 1 multiplexing.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may multiplex a scheduling request (SR) associated with a first priority and a first physical uplink control channel (PUCCH) format with a hybrid automatic repeat request acknowledgement (HARQ-ACK) associated with a second priority and a second PUCCH format to form a multiplexed SR and HARQ-ACK. The UE may transmit, to a base station, the multiplexed SR and HARQ-ACK using a sequence in a PUCCH format 1 resource, wherein the sequence is based at least in part on whether the SR is a positive value or a negative value. Numerous other aspects are described.