Antenna Diversity Control for Home Area Network Signal Loss
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Solution Overview
Problem
In home area networks, signal losses occur due to mismatched antenna polarizations between energy services interfaces and home area network devices, leading to inaccurate power usage information transmission, as signals reflect and combine destructively off various surfaces.
Innovation Solution
Implementing an energy services interface with multiple antennas configured in different orthogonal polarizations and spatial locations, allowing the system to assign devices to the antenna with the strongest signal based on an antenna diversity schedule, thereby enhancing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single antenna is used for communication in a home area network, then the device complexity is reduced, but signal loss occurs due to polarization mismatch and multipath interference
Solution Approach 1:
The patent divides the single antenna system into multiple segmented antennas with different polarization orientations (e.g., horizontal and vertical). Each antenna segment handles specific polarization components, reducing signal loss from polarization mismatch while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The patent introduces polarization dimension as an additional degree of freedom to the antenna system. By utilizing multiple polarization dimensions (horizontal, vertical, circular) in addition to the spatial dimension, the system can select optimal polarization orientations to minimize signal loss from multipath interference and polarization mismatch
2Loss of energy
If multiple antennas with different polarizations are deployed, then signal loss is reduced through polarization diversity, but the device complexity increases
Solution Approach 1:
The patent designs the multiple-antenna system to serve universal communication functions across different polarization conditions. The same antenna array can handle various modulation schemes, data rates, and communication protocols while adapting to different polarization environments, reducing the need for separate specialized systems
Solution Approach 2:
The patent dynamically adjusts polarization parameters (orientation, ellipticity, handedness) and selection based on channel conditions. By changing polarization parameters in response to multipath interference patterns and receiver capabilities, the system optimizes signal quality without requiring permanent complex hardware configurations for all possible scenarios
3Measurement precision
If antenna polarization is matched between transmitter and receiver, then communication accuracy is improved, but adaptability to different device configurations is reduced
Solution Approach 1:
The patent implements dynamic polarization adaptation where the transmitter and receiver can adjust their polarization states in real-time based on channel conditions and device capabilities. This dynamic approach maintains high communication accuracy by establishing optimal polarization matching for each communication session while adapting to different device configurations and environmental conditions
Solution Approach 2:
The patent incorporates feedback mechanisms where polarization performance metrics (signal strength, error rates) are monitored and used to adjust polarization settings. The system receives feedback about receiver polarization capabilities and channel conditions, then adapts transmitted polarization to maximize communication accuracy while maintaining compatibility with diverse device configurations
Data Source
AI summary
A system, in one embodiment, includes an energy services interface having first and second antennas configured to communicate with a home area network (HAN) to receive information related to energy, communication circuitry configured to communicate data using the first and second antennas, and control logic configured to assign the first HAN device to either the first or second antenna as a first assigned antenna based at least partially upon which of the first or second antennas receives a stronger signal when communicating with first HAN device. In addition, the energy services interface is configured to communicate with the first HAN device via the first assigned antenna based on an antenna diversity schedule.