Frequency Hopping Multi-Beam Repetitions for Balanced Resource Utilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication networks, the traditional methods for handling multiple repetitions of a communication to enhance reliability and reduce latency often lead to unbalanced utilization of available resources, particularly in ultra-reliable low-latency communications (URLLC), where automatic retransmissions using different resources can result in inefficient resource allocation.
Innovation Solution
A method where the user equipment determines a resource for each repetition of a communication based on its relative time location within a subset of repetitions associated with a particular transmit beam, allowing for more uniform resource utilization across different beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods are used for handling multiple repetitions of communication, then reliability can be enhanced through automatic retransmissions, but resource utilization becomes unbalanced and inefficient
Solution Approach 1:
The patent segments the multiple repetitions into subsets, where each subset is associated with a specific beam. This segmentation allows different resource allocation strategies to be applied to each beam-subset combination, ensuring balanced resource utilization while maintaining reliability through targeted retransmissions.
Solution Approach 2:
The patent applies local quality by assigning different resource allocation patterns to different beams based on their specific characteristics and the subsets they serve. Each beam receives customized resource allocation optimized for its local conditions, improving overall resource utilization efficiency while maintaining communication reliability.
2Reliability
If automatic retransmissions use different resources to exploit time, frequency and spatial diversities, then reliability improves, but resource allocation becomes unbalanced
Solution Approach 1:
The patent divides the repetitions into subsets associated with different beams, enabling differentiated resource allocation for each beam. This segmentation ensures that resources are distributed more evenly across all beams and frequency resources, preventing the unbalanced allocation that occurs with traditional uniform retransmission strategies.
Solution Approach 2:
The patent changes the resource allocation parameters dynamically based on the subset and beam association. By adjusting resource selection parameters for each beam-subset combination, the system achieves both reliable transmissions through diversity and balanced resource distribution across the available spectrum.
Data Source
AI summary
A method and apparatus are provided, in which scheduling information of a physical channel is received (702), where the scheduling information includes a value that defines a particular number of repetitions of a communication to be conveyed via the physical channel and information identifying a plurality of transmit beams to be used for transmitting the physical channel. A resource for use with a particular repetition of the plurality of repetitions is determined (704) based on a relative time location of the particular repetition within a particular subset of the plurality of repetitions, where the particular repetition is transmitted using a particular transmit beam of the plurality of transmit beams and the particular subset of the plurality of repetitions includes the repetitions associated with the particular transmit beam. The particular repetition of the plurality of repetitions of the physical channel is transmitted (706) based on the determined resource.