Uplink Control Information Priority Segmentation for Wireless Resource Allocation
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Solution Overview
Problem
In 5G wireless communication systems, the multiplexing of different intra-User Equipment (UE) priority services leads to collisions between Physical Uplink Control Channels (PUCCH) and other uplink physical-layer channels, such as PUSCH, which affects the transmission performance of high-priority services and spectral efficiency.
Innovation Solution
A method where the priority of the colliding uplink physical-layer channel is used to determine whether and how to multiplex Uplink Control Information (UCI) with different priorities, by selecting appropriate radio resource blocks and prioritizing transmission to ensure high-priority data integrity and improve spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UCI with different priorities is multiplexed onto the same PUCCH, then resource utilization is improved, but collision with other uplink channels occurs affecting transmission performance
Solution Approach 1:
The patent segments UCI into different priority levels (first priority and second priority) and assigns them to different PUCCH resource blocks. High-priority UCI is transmitted in first PUCCH resource blocks while low-priority UCI is transmitted in second PUCCH resource blocks, preventing collisions between different priority transmissions while maintaining resource utilization.
Solution Approach 2:
The patent applies different transmission qualities to different parts of the UCI by allocating specific PUCCH resource blocks based on priority. First PUCCH resource blocks are dedicated for high-priority UCI with higher reliability requirements, while second PUCCH resource blocks are used for low-priority UCI, ensuring each priority level receives appropriate transmission quality.
2Adaptability or versatility
If PUCCH resource reselection is performed during multiplexing, then intra-UE service multiplexing is enabled, but collision with other channels is incurred
Solution Approach 1:
The patent segments PUCCH resources into first PUCCH resource blocks for high-priority services and second PUCCH resource blocks for low-priority services. During multiplexing operations, this segmentation prevents collision with other uplink channels by ensuring high-priority UCI transmissions are isolated in dedicated resource blocks.
Solution Approach 2:
The patent performs preliminary determination of PUCCH resource blocks based on UCI priority before actual transmission. The network device or UE determines in advance which PUCCH resource block (first or second) should be used for each UCI, preventing channel collision before it occurs during the transmission process.
3Reliability
If high-priority transmission is prioritized, then data integrity is ensured, but spectral efficiency may be reduced
Solution Approach 1:
The patent merges first PUCCH resource blocks and second PUCCH resource blocks into a unified PUCCH resource structure. This allows the system to ensure high-priority data integrity through dedicated first resource blocks while maintaining spectral efficiency by efficiently utilizing both first and second resource blocks together, avoiding waste of available resources.
Solution Approach 2:
The patent changes the parameter of PUCCH resource allocation based on UCI priority. By dynamically selecting between first PUCCH resource blocks (for high priority) and second PUCCH resource blocks (for low priority), the system adapts resource parameters to match transmission requirements, ensuring data integrity when needed while optimizing spectral efficiency when possible.
Data Source
AI summary
The present application provides a method and device in a node for wireless communications. A first receiver, receiving a first signaling and a second signaling; a first transmitter, transmits a first signal in a target radio resource block, the first signal carrying a first bit block; wherein the first signaling is used to determine the first bit block, and the second signaling is used to determine a third bit block; a second radio resource block is reserved for a second bit block; a number of bit(s) comprised in the first bit block and a number of bit(s) comprised in the third bit block are used to determine a first radio resource block, and the first radio resource block overlaps with the second radio resource block in time domain; a first number is used to determine a fourth radio resource block.