Terminal Device Dynamic FD HD Mode Selection for Interference Management
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Solution Overview
Problem
In multi-cell communication environments, Full-Duplex (FD) transmission experiences reduced transmission capacity due to additional interference from neighboring nodes, despite offering higher resource usage rates compared to Half-Duplex (HD) transmission.
Innovation Solution
A terminal device capable of selectively using FD or HD transmission based on the relationship with neighboring nodes, employing a signal reception unit, interference node selection unit, estimation unit, and mode determination unit to determine the most advantageous transmission mode by estimating transmission capacities and managing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If Full-Duplex transmission is used to increase resource usage rate, then resource utilization improves, but transmission capacity decreases due to additional interference from neighboring nodes
Solution Approach 1:
The patent implements dynamic mode selection between Full-Duplex and Half-Duplex transmission based on real-time interference conditions. The terminal device determines the operation mode by evaluating additional interference from neighboring nodes, allowing the system to adaptively switch between FD and HD modes to optimize both resource usage rate and transmission capacity under varying channel conditions
Solution Approach 2:
The patent changes the transmission operation mode parameter based on interference measurements. By monitoring additional interference from neighboring nodes and adjusting the operation mode accordingly (FD mode when interference is low, HD mode when interference is high), the system optimizes the trade-off between resource usage rate and transmission capacity
2Productivity
If Full-Duplex transmission is used simultaneously by multiple nodes, then resource efficiency improves, but additional interference from neighboring nodes increases
Solution Approach 1:
The patent employs feedback mechanisms where terminal devices measure additional interference from neighboring nodes and report this information to the network. Based on this feedback, the system determines the appropriate operation mode for each terminal, allowing coordinated control of FD/HD modes across multiple nodes to manage additional interference while maintaining resource efficiency
Solution Approach 2:
The patent introduces an interference measurement and reporting mechanism as an intermediary between direct transmission and resource allocation decisions. By measuring additional interference from neighboring nodes and using this information to determine operation modes, the system mediates between the conflicting goals of high resource efficiency and low additional interference
Data Source
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AI summary
Disclosed is a terminal device that is capable of taking an advantage of increasing transmission capacity in the FD transmission as much as possible by selectively using the FD transmission or the HD transmission in a multi-cell communication environment in consideration of a relationship with other neighboring nodes (base stations and terminals). Also disclosed is a method of operating the terminal device.