Power Control Method for URLLC Transmission in NR Systems
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Solution Overview
Problem
In a New Radio (NR) system where Ultra-Reliable and Low Latency Communication (URLLC) and Enhanced Mobile Broadband (eMBB) coexist, there is a significant challenge in ensuring the transmission of uplink URLLC due to collisions and interference from uplink eMBB transmissions.
Innovation Solution
The method involves power controlling for URLLC by associating power adjustment information with specific resources, allowing for targeted and efficient power management. This is achieved by interpreting power adjustment information based on a corresponding relationship between the power adjustments and the resources, thereby overcoming interference from eMBB transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If power adjustment information is not associated with specific resources, then the power control system is simpler, but the power control precision and effectiveness deteriorate
Solution Approach 1:
The patent applies local quality by associating power adjustment information with specific resources (time resources, frequency resources, or both). This allows different power adjustment levels for different resources based on their specific characteristics and interference conditions, achieving precise power control where needed while maintaining simplicity elsewhere.
Solution Approach 2:
The patent segments the power control system into multiple components: power adjustment information, resource information, and correspondence relationships. This segmentation allows the system to handle complex power control requirements by breaking down the control into manageable units associated with specific resources, improving precision without overwhelming complexity.
2Reliability
If universal power control is applied to all resources, then the system is more simple, but the effectiveness of URLLC transmission deteriorates due to interference from eMBB
Solution Approach 1:
The patent implements local quality by differentiating power control strategies for different resource types. URLLC resources receive power adjustment information tailored to their low-latency and high-reliability requirements, while eMBB resources are controlled differently. This localized approach ensures URLLC reliability without requiring complex system-wide reforms.
Solution Approach 2:
The patent introduces power adjustment information as an intermediary element that mediates between the power control mechanism and the actual transmission. This intermediary carries specific control instructions for URLLC resources, allowing the system to address URLLC reliability needs without fundamentally redesigning the entire power control mechanism.
3Reliability
If power boosting is applied to overcome eMBB interference, then URLLC transmission quality improves, but energy consumption increases
Solution Approach 1:
The patent applies local quality by implementing power boosting only for specific URLLC resources that experience eMBB interference, rather than uniformly increasing power for all transmissions. The power adjustment information identifies which resources need boosting, allowing the terminal to conserve energy by applying power enhancement only where necessary to maintain URLLC transmission quality.
Data Source
AI summary
A power control method, a terminal device and a network device are disclosed, wherein power adjustment information is associated with a resource, so that power control for URLLC is more targeted and is also more efficient. The power control method includes: a terminal device receiving first information, wherein the first information comprises at least one piece of power adjustment information; and the terminal device determining, according to the at least one piece of power adjustment information and power configuration information, a sending power, wherein the power configuration information at least comprises a first correlation, and the first correlation is a correlation between the power adjustment information and a resource.