Interlaced Diplexers for Full Duplex Mesh Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing duplexing techniques in wireless communications, such as frequency-division duplex and time-division duplex, face challenges in providing full duplex communications in mesh networks, leading to limitations in connectivity and communication range, especially when terminal types or network topology changes occur.
Innovation Solution
The use of interlaced diplexers in wireless terminals, which allow for multiple transmit and receive bands with overlapping separation bands, enabling flexible duplexing operations and reducing interference, thereby facilitating full duplex communications across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency-division duplex operation is used, then full duplex communications can be achieved between terminals, but terminals cannot establish direct communications with each other in mesh networks and the gender problem arises
Solution Approach 1:
The frequency spectrum is segmented into multiple bands (first band, second band, third band, fourth band) with the first and second bands separated by a first separation band, and the third and fourth bands separated by a second separation band. This segmentation allows different diplexers to operate on different frequency segments, enabling terminals to have multiple transmit and receive capabilities that can adapt to various network configurations and establish direct communications in mesh networks while maintaining full duplex operation.
Solution Approach 2:
The diplexer structure is designed to be universal by providing multiple frequency bands (first, second, third, fourth bands) that can be configured for different transmit and receive operations. The diplexer can selectively connect different frequency bands to transmit and receive ports, making it capable of supporting multiple terminal types and network topologies, thereby resolving the gender problem while maintaining full duplex communications.
2Adaptability or versatility
If time-division duplex is used, then gender problems are reduced, but communication range decreases and timing coordination is required
Solution Approach 1:
Instead of using time-division duplex with periodic transmission and reception intervals, the invention employs frequency-division multiplexing with multiple simultaneous frequency bands. The diplexer enables continuous full duplex transmission and reception on different frequency bands (first, second, third, fourth bands) without requiring time sharing, thereby maintaining communication range while providing gender flexibility through configurable frequency assignments.
Solution Approach 2:
The invention changes the parameter from time-division to frequency-division by utilizing multiple frequency bands separated by separation bands. The diplexer selectively connects different frequency bands to transmit and receive ports, allowing terminals to be configured with different transmit and receive frequency combinations. This parameter change enables continuous transmission without time gaps, preserving communication range while achieving adaptability in terminal configurations.
3Adaptability or versatility
If multiple frequency bands are used with interlaced diplexers, then connectivity and flexibility are improved, but device complexity increases
Solution Approach 1:
The invention merges multiple frequency bands (first, second, third, fourth bands) into a single diplexer structure with shared separation bands. The first and second bands are separated by a first separation band, while the third and fourth bands are separated by a second separation band, with the separation bands serving as common boundaries. This merging approach enables multiple frequency operations within a unified diplexer architecture, providing network flexibility while managing device complexity through integrated design.
Data Source
AI summary
Wireless terminals, systems, and methods use interlaced diplexers. A first diplexer can provide a first pair of bands separated by a first separation band, and a second diplexer can provide a second pair of bands separated by a second separation band. The first separation band and the second separation band can overlap. Transceivers (comprising transmitters and receivers) can be coupled to the diplexers to provide frequency-division duplex communications using one or both of the pairs of bands.