Reconfigurable Antenna Configuration Selection via Pre-computed Channel Data
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Solution Overview
Problem
Reconfigurable antenna systems face challenges in efficiently selecting the optimal antenna configuration for a given wireless channel due to time and power-consuming channel response estimation processes, especially as the number of available configurations increases, leading to performance degradation.
Innovation Solution
A method utilizing a control unit, such as a microcontroller or FPGA, to generate control signals for configuring antenna elements based on a reduced set of antenna configurations, with iterative evaluation and selection of optimal configurations to minimize processing time and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If channel response estimation is performed for each antenna configuration to select the optimal configuration, then the reliability of antenna selection is improved, but the time consumption and power consumption increase significantly
Solution Approach 1:
The patent pre-calculates and stores channel response estimation values for all possible antenna configurations before actual communication occurs. This preliminary computation allows the system to quickly retrieve and compare pre-computed values during operation, avoiding time-consuming real-time estimation while maintaining accurate antenna selection. The pre-computed channel response data is stored in memory for rapid access during configuration selection.
Solution Approach 2:
Instead of performing complete channel response estimation for all antenna configurations in real-time, the patent performs the estimation partially in advance and uses the stored results selectively. The system computes channel response values for all configurations once, stores them, and then uses these pre-computed values for rapid configuration selection, performing only the necessary retrieval and comparison operations during actual use.
2Measurement precision
If channel response estimation is performed for each antenna configuration, then the accuracy of performance evaluation is improved, but the power consumption increases significantly
Solution Approach 1:
The patent performs channel response estimation in advance during system initialization or setup phases, storing the results for later use. This shifts the power-intensive computation away from real-time operation, allowing accurate channel response measurement to be performed once when power is available, rather than repeatedly during communication when power consumption must be minimized.
Solution Approach 2:
The patent creates and stores copies of channel response estimation results for all antenna configurations. Instead of重新computing these values during operation, the system uses stored copies of the estimation data, which were computed once when power was plentiful. This copying approach maintains measurement precision while dramatically reducing ongoing power consumption during configuration selection.
3Adaptability or versatility
If the number of available antenna configurations is increased to improve system adaptability, then the spectral efficiency is improved, but the time and power consumption for configuration selection increases proportionally
Solution Approach 1:
The patent pre-computes and stores channel response estimation values for all possible antenna configurations, including all the additional configurations that provide enhanced adaptability. By performing this computation in advance, the system can support a large number of configurations without increasing real-time selection time, as all the necessary data is already available in storage for immediate retrieval and comparison.
Data Source
AI summary
The invention relates to a method (1) for configuring a reconfigurable antenna system (100). The method (1) comprises the following steps: a) selecting one or more groups of antenna configurations in a reference set of antenna configurations; and b) selecting one or more antenna configurations to be tested for each group of antenna configurations, which has been selected at the previous step a); and c) evaluating the radiating performance of said reconfigurable antenna system (100) for each antenna configuration, which has been selected at the previous step b), the radiating performance of said reconfigurable antenna system being evaluated on the base of estimation values that are calculated during one or more testing sessions of said reconfigurable antenna system; and d) selecting the optimal antenna configuration, for which said reconfigurable antenna system (100) has provided the best radiating performance during said testing sessions; and e) if the group of antenna configurations, to which said optimal antenna configuration belongs, comprises only said optimal antenna configuration, configuring said antenna elements (101) according to said optimal antenna configuration; or f) if the group of antenna configurations, to which said optimal antenna configuration belongs, comprises a plurality of antenna configurations, selecting said group of antenna configuration as new reference set of antenna configurations; and g) repeating the previous steps (a)-(d) for said new reference set of antenna configurations.