Multiplexing HARQ-ACK Information on PUCCH for Wireless Uplink
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing uplink transmission and reception, particularly in multiplexing HARQ-ACK information for unicast and multicast semi-persistent scheduling (SPS) transmissions, which affects data traffic and latency in next-generation mobile communication networks.
Innovation Solution
A method and apparatus for multiplexing HARQ-ACK information on a physical uplink control channel (PUCCH) based on the ascending order of indices for both unicast and multicast SPS transmissions, allowing for efficient transmission and reception of control signals in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If HARQ-ACK information for unicast and multicast SPS transmissions is multiplexed on PUCCH based on ascending order of indices, then the capacity to handle increased data traffic is enhanced and latency is reduced, but the device complexity increases due to the need to manage and multiplex multiple HARQ-ACK information types
Solution Approach 1:
The patent segments HARQ-ACK information into distinct types (unicast SPS and multicast SPS) and assigns them separate configuration parameters and multiplexing rules. This segmentation allows the system to handle different types of HARQ-ACK information independently while maintaining overall system organization, thereby improving data traffic handling capacity without overwhelming device complexity
Solution Approach 2:
The patent implements dynamic multiplexing of HARQ-ACK information based on the ascending order of indices, allowing the system to adaptively manage multiple HARQ-ACK types according to their configuration priorities. This dynamic approach enables efficient resource utilization and latency reduction while maintaining manageable device complexity through structured index-based ordering
2Use of energy by moving object
If multiple HARQ-ACK information types are multiplexed on the same PUCCH, then energy efficiency is improved by optimizing transmission, but the reliability of individual HARQ-ACK transmissions may deteriorate due to potential interference and resource contention
Solution Approach 1:
The patent applies local quality by assigning different configuration parameters and multiplexing rules to different types of HARQ-ACK information (unicast vs. multicast SPS). This allows each HARQ-ACK type to be transmitted with optimized local characteristics, improving overall energy efficiency while maintaining individual transmission reliability through differentiated handling
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of index-based ordering and configuration parameters that mediate between different HARQ-ACK types during multiplexing. This intermediary structure organizes the multiplexing process to reduce interference and resource contention, thereby maintaining reliability while achieving energy efficiency improvements
Data Source
AI summary
A method and a device for performing uplink transmission or reception in a wireless communication system are disclosed. A method for performing uplink transmission by a terminal according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, configuration information including N1 pieces of first information related to unicast SPS transmission and N2 pieces of second information related to multicast SPS transmission; and transmitting, to the base station, first HARQ-ACK information associated with N1 pieces of unicast SPS transmissions and second HARQ-ACK information related to N2 pieces of multicast SPS transmissions, the first and second HARQ-ACK information being multiplexed on a first PUCCH, wherein the first HARQ-ACK information and the second HARQ-ACK information are multiplexed on the first PUCCH on the basis of the ascending order of the indexes of the N1 pieces of first information and the N2 pieces of second information.