Terminal Device PUCCH Resource Collision Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G new radio (NR) systems, terminal devices face challenges in reporting channel state information (CSI) when physical uplink control channel (PUCCH) resources overlap, leading to collisions, which existing technologies have not effectively addressed.
Innovation Solution
A method where a terminal device determines target CSI to be reported based on overlapping PUCCH resources by using a second PUCCH resource, selecting CSI based on starting positions and priorities to ensure effective reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semi-static PUCCH resources are configured for CSI reporting, then CSI reporting capability is provided, but resource collisions occur when multiple PUCCH resources overlap in time domain
Solution Approach 1:
The patent segments the collision CSI reporting into multiple independent PUCCH resources (first PUCCH resource and second PUCCH resource). Each resource carries a subset of the collision CSI, allowing parallel transmission without interference. This segmentation resolves the resource collision problem while maintaining comprehensive CSI reporting capability.
Solution Approach 2:
The patent introduces a new dimension for resource allocation by configuring PUCCH resources with different time-domain starting positions. When collision is detected, the system transitions from single-resource reporting to multi-resource reporting across different time slots, effectively utilizing the time dimension to resolve resource conflicts.
2Adaptability or versatility
If multiple PUCCH resources are configured for collision CSI, then CSI reporting flexibility is improved, but device complexity increases for determining which CSI to transmit
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple PUCCH resources with distinct time-domain starting positions before collision occurs. When collision is detected, the terminal device can immediately select the appropriate resource based on pre-established selection criteria (earliest starting position), avoiding complex real-time decision-making and reducing device complexity.
3Loss of information
If all collision CSI are reported through multi-CSI PUCCH resource, then information completeness is improved, but transmission efficiency decreases due to resource overlap
Solution Approach 1:
The patent segments collision CSI into multiple groups, each transmitted through separate PUCCH resources with different time-domain starting positions. This segmentation enables parallel transmission of CSI information, maintaining completeness while improving transmission efficiency by avoiding resource overlap and reducing interference.
Data Source
AI summary
Embodiments of the present application provide a method for transmitting information, a terminal device and a network device, the method includes: a terminal device determines target CSI to-be-reported to a network device according to a second PUCCH resource for transmitting collision CSI if at least two first PUCCH resources in multiple first physical uplink control channel (PUCCH) resources for carrying channel state information (CSI) overlap at least partially in a time domain; and the terminal device reports the target CSI to the network device through the second PUCCH resource.