Passive Radio Module for Building Façade Coverage
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Solution Overview
Problem
Existing radio network technologies face challenges in providing efficient outdoor to indoor and indoor to outdoor coverage due to high outer wall penetration loss, especially with buildings using reflective thermal insulation and low-emissivity windows, which affects 5G communication systems, and there is a need for flexible control to avoid interference.
Innovation Solution
A passive module with a radio transmission regulating structure that can be easily swapped within a holding structure, allowing for modular control of radio network coverage and access, without leaving permanent markings, and accommodating different radio transmission characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If reflective thermal insulation and low-emissivity windows are used in buildings, then thermal control is improved, but outdoor to indoor radio network coverage deteriorates
Solution Approach 1:
The window system is segmented into multiple functional layers: the original low-emissivity coating for thermal control, and an additional radio transmission regulating structure with selective permeability patterns that allow radio waves to pass through while maintaining thermal insulation properties. This segmentation allows independent optimization of thermal and radio transmission characteristics.
Solution Approach 2:
The invention combines multiple materials and structures into a composite window system that integrates thermal insulation materials with radio wave transparent structures. The composite structure includes the low-emissivity glass coating combined with a radio transmission regulating structure that has selective permeability, creating a multi-functional system that simultaneously provides thermal control and radio network coverage.
2Device complexity
If outdoor radio networks are used for indoor coverage, then infrastructure complexity is reduced, but radio transmission loss increases
Solution Approach 1:
The radio transmission regulating structure acts as an intermediary element between the outdoor radio network and indoor coverage area. It is integrated into the building façade and selectively permits radio wave transmission while blocking thermal radiation, thereby mediating the interaction between outdoor signals and indoor environment without requiring additional indoor infrastructure.
3Reliability
If radio-wise transparent passages are engraved in window film coatings, then radio network access is improved, but permanent markings are left on windows
Solution Approach 1:
Instead of directly engraving the radio transmission regulating pattern into the window film (which would leave permanent markings), the invention uses a separate radio transmission regulating structure that is positioned in front of or integrated with the window. This structure contains the selective permeability patterns that allow radio waves to pass through while maintaining the visual integrity of the original window appearance.
4Reliability
If indoor radio networks are deployed to ensure coverage, then radio network access is improved, but mutual interference increases
Solution Approach 1:
The invention extracts the radio transmission regulation function from the indoor radio network infrastructure and relocates it to the building façade through the radio transmission regulating structure. By placing the signal entry point at the exterior, the system allows controlled signal penetration from outdoor networks, reducing the need for complex indoor network deployments and minimizing interference between multiple indoor networks.
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
Enables efficient and flexible control of radio network coverage and access, allowing quick adaptation to changing needs and preventing interference, while maintaining thermal insulation and aesthetics.
Implementation Method 1
Outer wall penetration loss of radio waves is a key parameter for outdoor to indoor radio network coverage as well as for indoor to outdoor radio network access
Implementation Method 2
building walls and windows having characteristics, such as in buildings with reflective thermal insulation and/or low-emissivity windows
Implementation Method 3
reflective thermal insulation
Data Source
Figure 1~2
Figure 3~4
Figure 5(a)~7
AI summary
There is provided a passive module for a holding structure. The holding structure is adjacent or part of a movable wing. The passive module comprises a support structure. The passive module comprises a radio transmission regulating structure. The radio transmission regulating structure is supported by the support structure. The radio transmission regulating structure has a radio transmission regulating characteristics. There is also provided a holding structure. The holding structure exhibits a slot for receiving such a passive module. There is further provided a kit of parts comprising at least one such passive module and such a holding structure.