Hybrid Node Sector Segmentation for Self-Interference Mitigation
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Solution Overview
Problem
Hybrid nodes in wireless mesh networks face self-interference issues due to simultaneous transmission and reception over a common transmission channel, leading to inefficiencies in signal quality and communication performance.
Innovation Solution
The hybrid node is designed with multiple sectors, each capable of transmitting and receiving signals through specific beam forming settings, with adaptive characterization and scheduling to minimize interference by measuring signal quality and adjusting beam settings based on environmental conditions and peer node communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hybrid node simultaneously transmits and receives signals through a common transmission channel, then the node can perform both transmit and receive functions, but self-interference occurs leading to degraded signal quality
Solution Approach 1:
The hybrid node is divided into multiple sectors, where each sector can be independently configured for transmission or reception. This segmentation allows the node to simultaneously perform both functions in different spatial directions without mutual interference, resolving the contradiction between hybrid functionality and self-interference.
Solution Approach 2:
The patent introduces spatial dimension through multiple sectors and beam forming settings. By utilizing different spatial dimensions (sectors) and beam directions, the system enables simultaneous transmission and reception without interference, adding a spatial dimension to resolve the time-frequency domain interference problem.
2Object-affected harmful factors
If beam forming settings are adjusted to reduce self-interference, then signal quality improves, but system complexity increases due to adaptive characterization and scheduling requirements
Solution Approach 1:
The system performs preliminary characterization of self-interference patterns during idle periods or setup phases, storing this information for later use. This preliminary action allows the node to quickly select appropriate beam forming settings without real-time complex calculations, reducing operational complexity while maintaining interference mitigation.
Solution Approach 2:
The system implements feedback mechanisms where signal quality measurements from receive sectors are used to adjust and optimize transmit beam forming settings. This feedback loop enables adaptive optimization of beam patterns to minimize self-interference while maintaining manageable system complexity through iterative improvement.
3Productivity
If multiple sectors with multiple beam forming settings are used, then simultaneous transmission and reception efficiency improves, but device complexity increases
Solution Approach 1:
The node is segmented into multiple sectors, each capable of independent transmission or reception operations. This segmentation enables parallel processing of multiple signals simultaneously, improving productivity while managing complexity through modular sector design with standardized beam forming capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the efficiency and performance of wireless mesh networks by reducing self-interference and optimizing communication links, allowing for improved simultaneous transmission and reception while adapting to dynamic environmental changes.
Implementation Method 1
The first sector is operative to transmit a signal through a predetermined transmission channel at each of a first plurality of transmit beam forming settings of the first plurality of antenna elements
Data Source
AI summary
Apparatuses, methods, and systems of a hybrid node are disclosed. One embodiment of the hybrid node includes a first sector and a second sector. The first sector is operative to transmit a signal through a predetermined transmission channel at each of a first plurality of transmit beam forming settings. The second sector is operative to receive the signal through the predetermined channel at a second plurality of receive beam forming settings for each of more than one of the first plurality of transmit beam forming settings. Further, the node is operative to measure a received signal quality of the received signal at each of the second plurality of receive beam forming settings of the second plurality of antenna elements, for each of the more than one of the first plurality of transmit beam forming settings of the first plurality of antenna elements.