In-band Full Duplex Interference Mitigation via Traffic Data Feedback
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Solution Overview
Problem
In telecommunication networks with in-band full duplex communication, increased interference issues arise due to simultaneous transmission and reception of signals on the same frequency, affecting network nodes and User Equipment, necessitating effective methods to mitigate interference and optimize radio operation tasks.
Innovation Solution
A method where a second network node receives and combines traffic measurement data from multiple first network nodes to determine suitable radio operation tasks, such as mitigating interference, switching UE connections, and managing resource allocation, using data on active channels and channel usage in the first cell, enabling accurate decision-making for interference reduction and efficient network management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If in-band full duplex communication is implemented to double spectral efficiency, then spectral efficiency is improved, but interference issues increase
Solution Approach 1:
The patent implements feedback mechanisms where network nodes exchange traffic measurement data and interference information through standardized interfaces (X2 interface in LTE). This enables dynamic adjustment of radio operations based on real-time interference conditions, allowing the system to maintain high spectral efficiency while mitigating interference through informed decision-making.
Solution Approach 2:
The patent introduces intermediary communication protocols and standardized information elements that facilitate coordinated interference management between network nodes. These intermediaries enable exchange of traffic measurement data and cooperative decision-making, allowing interference mitigation without sacrificing the spectral efficiency gains from full duplex operation.
2Measurement precision
If traffic measurement data from multiple network nodes is combined to improve decision accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the complex task of interference management into standardized information elements and modular processing steps. Traffic measurement data is divided into specific parameters (PRB usage, GBR usage, non-GBR usage) that can be independently processed and combined, reducing overall complexity while maintaining measurement precision.
Solution Approach 2:
The patent creates universal standardized information elements that serve multiple functions: they represent traffic measurement data, convey interference information, and enable coordinated radio operations across different network nodes. This multi-functionality reduces the need for node-specific custom protocols, thereby reducing complexity while improving measurement accuracy.
Data Source
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AI summary
Method of enabling a second network node to perform a radio operation task based on measurement data related to in-band full duplex communication and half duplex communication performed by the first network node and provided to the second network node, wherein the traffic measurement data comprises at least one of the number of active channels used for communication in the first cell and the physical channel usage or utilization of channels used for communication in the first cell.