Wireless Node CLI Mitigation Rules for Full-Duplex Coordination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in mitigating cross-link interference (CLI) between wireless nodes during full-duplex (FD) communication, leading to inefficient resource utilization and reduced communication quality due to lack of coordination in mitigation actions among nodes.
Innovation Solution
Implementing dynamic interference mitigation rules that determine which wireless node should take action to mitigate CLI based on cell identifiers, physical cell identifiers, or priorities, thereby coordinating interference mitigation efforts and optimizing resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless nodes implement full-duplex communication to improve spectral efficiency, then communication capacity increases, but cross-link interference between nodes increases
Solution Approach 1:
The patent implements a feedback mechanism where wireless nodes detect CLI conditions and send indications to neighboring nodes. This enables dynamic adjustment of transmission parameters based on real-time interference measurements, allowing the system to maintain full-duplex operation while mitigating harmful cross-link interference through coordinated response.
Solution Approach 2:
The patent introduces dynamic TDD configuration where slot formats can be flexibly adjusted based on detected interference conditions. The system transitions from static duplexing modes to dynamic mode selection, allowing nodes to switch between half-duplex and full-duplex operations depending on the current CLI environment, thereby optimizing the balance between capacity and interference.
2Object-affected harmful factors
If wireless nodes take mitigation actions to reduce CLI, then interference levels decrease, but resource utilization efficiency decreases
Solution Approach 1:
The patent applies local quality by enabling individual nodes to autonomously determine and execute mitigation actions based on their specific CLI conditions. Each node evaluates its own interference environment and cell ID characteristics to decide whether to transmit, receive, or remain silent, rather than applying uniform mitigation strategies across the entire network. This localized approach minimizes unnecessary resource waste while effectively reducing harmful interference where detected.
3Reliability
If wireless nodes continuously monitor and respond to CLI to improve communication quality, then reliability increases, but system complexity increases
Solution Approach 1:
The patent implements self-service by enabling each wireless node to autonomously detect CLI conditions, evaluate mitigation requirements based on its cell ID and current state, and execute appropriate actions without requiring centralized coordination. Each node serves itself by making local decisions about transmission based on pre-configured rules and detected conditions, significantly reducing the complexity of coordinated interference management while maintaining high communication reliability.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communication by a first wireless node, comprising detecting cross link interference (CLI) between the first wireless node and a second wireless node, determining whether the first wireless node or the second wireless node is to take action to mitigate CLI based on one or more rules and taking one or more actions to mitigate CLI when the determination is that the first wireless node is to take action to mitigate CLI.