PUSCH Selection for UCI Multiplexing in NR
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the context of New Radio (NR) wireless communication systems, the challenge lies in selecting a suitable Physical Uplink Shared Channel (PUSCH) for multiplexing transmission when there is an overlapping portion in time-domain between the Physical Uplink Control Channel (PUCCH) and multiple PUSCHs, as existing solutions fail to effectively determine the appropriate PUSCH for seamless multiplexing.
Innovation Solution
A method and apparatus that select a PUSCH for multiplexing transmission of Uplink Control Information (UCI) based on specific criteria such as earliest starting or ending position, downlink dynamic scheduling, maximum symbol overlap, or maximum resource units, ensuring efficient multiplexing by determining the optimal PUSCH for combining UCI and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a PUCCH and multiple PUSCHs have overlapping time-domain resources, then multiplexing transmission is needed to maintain single-carrier characteristic and improve PAPR, but it becomes difficult to determine which PUSCH should be selected for multiplexing the UCI
Solution Approach 1:
The patent changes the selection parameter from generic overlap detection to specific criteria including earliest starting position, earliest ending position, maximum symbol overlap, and maximum resource units. This provides a deterministic method for PUSCH selection that resolves the contradiction by establishing clear parameter-based selection rules.
Solution Approach 2:
The patent establishes selection criteria in advance before the actual multiplexing decision is needed. By pre-defining the rules for PUSCH selection based on various parameters, the system prepares the selection logic beforehand, reducing runtime complexity and ensuring reliable PAPR performance.
2Use of energy by moving object
If UCI is multiplexed on PUSCH instead of transmitted separately on PUCCH, then single-carrier characteristic is maintained with better PAPR and lower MPR, but transmission reliability may be compromised when multiple PUSCHs are involved
Solution Approach 1:
The patent introduces multiple selection parameters (earliest starting position, earliest ending position, maximum symbol overlap, maximum resource units) to determine the optimal PUSCH for UCI multiplexing. This ensures that the UCI is multiplexed on the most suitable PUSCH, maintaining both energy efficiency and transmission reliability.
Solution Approach 2:
The patent enables the base station to determine which PUSCH carries multiplexed UCI based on the selection criteria, providing feedback mechanisms that ensure the receiving end can correctly identify and process the multiplexed information, thereby maintaining transmission reliability.
3Adaptability or versatility
If multiple PUSCHs are configured for different services with different QoS requirements, then service diversity is supported, but determining the appropriate PUSCH for UCI multiplexing becomes more complex
Solution Approach 1:
The patent extends the selection criteria to work with multiple service types and QoS requirements by using objective parameters such as earliest starting position, earliest ending position, maximum symbol overlap, and maximum resource units. These parameters provide a universal selection mechanism that works across different service types without increasing complexity.
Solution Approach 2:
The patent creates a universal PUSCH selection mechanism that can handle multiple service types (eMBB, URLLC, mMTC) with different QoS requirements. The selection criteria serve as a multi-functional tool that adapts to various service scenarios while maintaining a consistent decision-making process.
Data Source
AI summary
Aspects of the disclosure provide a method for multiplexing transmission of information and apparatus, a method for receiving information and apparatus, user equipment (UE), a base station and a computer-readable storage medium. The method for multiplexing transmission of information can include, when a physical uplink control channel (PUCCH) and a plurality of physical uplink shared channels (PUSCHs) have an overlapping portion in a time-domain, selecting, according to a selection criterion, a PUSCH for multiplexing transmission of uplink control information (UCI) carried in the PUCCH. The method can further include using the selected PUSCH for the multiplexing transmission of the UCI and transmission content of the selected PUSCH. According to the embodiments of the present disclosure, when the PUCCH and the plurality of PUSCHs have an overlapping portion in the time-domain, a suitable PUSCH can be selected for the multiplexing transmission.