UCI Multiplexing in Multi-TB PUSCH for 5G Scheduling
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in efficiently multiplexing uplink control information (UCI) in physical uplink shared channels (PUSCH) with multiple transport blocks and simultaneously transmitting with physical uplink control channels (PUCCH), which affects scheduling and transmission efficiency.
Innovation Solution
A method and apparatus that determine whether UCI is multiplexed in a PUSCH with multiple transport blocks or transmitted simultaneously with PUCCH, and adjust transmission accordingly based on received scheduling information, utilizing a terminal and base station configuration to optimize UCI transmission in 5G wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UCI is multiplexed in PUSCH with multiple transport blocks, then transmission efficiency is improved, but scheduling complexity increases
Solution Approach 1:
The patent segments the PUSCH transmission into multiple transport blocks (TBs), where each TB can independently carry UCI. This segmentation allows the terminal to selectively multiplex UCI in specific TBs based on scheduling conditions, thereby improving transmission efficiency while managing scheduling complexity through structured division of transmission resources.
Solution Approach 2:
The patent implements dynamic multiplexing of UCI in PUSCH by determining whether to multiplex UCI based on real-time scheduling conditions and transport block characteristics. The terminal dynamically adjusts UCI multiplexing decisions according to received scheduling information, enabling flexible adaptation to varying transmission scenarios while maintaining efficient resource utilization.
2Reliability
If PUSCH is simultaneously transmitted with PUCCH including UCI, then reliability of UCI transmission is improved, but resource conflict increases
Solution Approach 1:
The patent uses the PUSCH as an intermediary carrier for UCI transmission. Instead of always using separate PUCCH resources, the system allows UCI to be transmitted through the PUSCH when certain conditions are met, thereby maintaining reliability through multiple transmission paths while reducing resource conflicts by consolidating control information transmission within available data channels.
Solution Approach 2:
The patent merges UCI transmission with PUSCH transmission by multiplexing control information within the uplink shared channel. This combining approach eliminates the need for separate PUCCH resources in certain scenarios, improving reliability through consolidated transmission while reducing resource conflicts by utilizing already-allocated uplink resources for dual purposes.
3Adaptability or versatility
If flexible scheduling of UCI in PUSCH is implemented, then adaptability of transmission is improved, but processing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining conditions and rules for UCI multiplexing in PUSCH based on transport block characteristics and scheduling information. The terminal evaluates predetermined criteria before making multiplexing decisions, which enables flexible adaptation to different transmission scenarios while reducing processing complexity through structured decision-making frameworks established in advance.
Data Source
AI summary
An apparatus in a wireless communication system and a method performed by the same are provided. The method includes determining whether uplink control information (UCI) is multiplexed in a first physical uplink shared channel (PUSCH) including more than one transport block and/or whether the first PUSCH is simultaneously transmitted with a physical uplink control channel (PUCCH) including the UCI, receiving information for scheduling transmission of the first PUSCH, and transmitting the first PUSCH and/or the PUCCH including the UCI based on the determination. The disclosure can improve the communication efficiency.