Radio Link Resource Template Generation for Interference Mitigation
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Solution Overview
Problem
Next-generation radio communication systems face significant signal attenuation at higher frequencies due to increased path loss, leading to complex inter-link interferences that existing technologies struggle to mitigate effectively.
Innovation Solution
A method and network entity that obtain link interference information, divide radio links into non-interfering groups, and generate resource templates by determining schedulabilities for each group, ensuring that resource elements prioritized for an interfered link are not schedulable for interfering links, and vice versa, while considering template generation priorities and subgroups to optimize scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If beam-forming technique is used to compensate for signal attenuation at higher frequencies, then beam-forming gain is improved, but inter-link interferences become highly directional and more complex
Solution Approach 1:
The patent segments radio links into different groups based on interference relationships. Links are divided into interfering links and interfered links, with further subdivision into multiple groups to manage directional interference patterns. This segmentation allows targeted resource allocation that accounts for the highly directional nature of interference in beam-forming systems.
Solution Approach 2:
The patent applies local quality by assigning different schedulability priorities to resource elements based on their specific interference characteristics. Resource elements are categorized with different priorities (high, medium, low) depending on whether they are affected by interfering links or are used by interfered links, allowing localized optimization of resource allocation in different spatial and frequency regions.
2Reliability
If resource elements are prioritized to be schedulable for interfered links, then communication reliability for interfered links is improved, but resource availability for interfering links is reduced
Solution Approach 1:
The patent changes the schedulability parameter of resource elements dynamically based on interference conditions. Resource elements are assigned different schedulability priorities (high, medium, low) depending on the interference scenario. This parameter change allows the system to optimize for reliability when interference is present while maintaining overall resource availability through priority-based scheduling rather than absolute exclusion.
3Object-affected harmful factors
If radio links are divided into multiple groups based on interference information, then interference mitigation is improved, but system complexity increases
Solution Approach 1:
The patent segments the radio link management function into distinct modules: interference information obtaining, link grouping based on interference relationships, and separate resource template generation for each group. This segmentation makes the complex interference mitigation process manageable by breaking it into discrete, organized steps that can be implemented systematically.
Data Source
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AI summary
The present disclosure provides a method (300) in a network entity for generating resource templates for a plurality of radio links. The method (300) comprises: obtaining (S310) link interference information representing interference relation among the plurality of radio links; dividing (S320) the plurality of radio links into a number of groups based on the link interference information, such that each radio link in each group does not interfere with any radio link in any other group; and generating (S330) resource templates for the plurality of radio links by determining, for each group individually, schedule abilities of resource elements for each radio link in the group.