MIMO Antenna Grouping for Throughput and Reliability Trade-Offs
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Solution Overview
Problem
Wireless communications systems face challenges in improving signal reliability and throughput due to complex and dynamic environments, which can attenuate or block signals between transmitters and receivers, necessitating improved antenna management in MIMO systems.
Innovation Solution
An antenna grouping technique that differentiates antennas based on functionality and performance, grouping 8 receive antennas into two 4 Rx antenna groups to maximize spectral efficiency and improve throughput performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If antenna grouping is implemented to maximize spectral efficiency, then throughput performance is improved, but system complexity increases due to evaluation and selection processes
Solution Approach 1:
The patent segments the antenna system into multiple antenna groups (e.g., first antenna group and second antenna group) with different configurations. Each group can be independently evaluated and selected based on performance criteria, allowing the system to manage complexity through structured division while optimizing throughput by selecting the best performing groups.
Solution Approach 2:
The patent implements dynamic antenna grouping where the evaluation of antenna groups is performed periodically or in response to changing channel conditions. The selection of antenna groups can be adjusted based on real-time performance metrics, enabling the system to adapt to dynamic environments while managing complexity through automated evaluation processes.
2Reliability
If multiple antenna groups are evaluated based on multiple criteria, then reliability is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary evaluation of antenna groups by pre-calculating performance metrics such as signal strength, diversity gain, and spectral efficiency. This preliminary action allows the system to make informed decisions about antenna selection without requiring extensive real-time computation, thereby improving reliability while reducing processing time.
Solution Approach 2:
The patent implements feedback mechanisms where performance data from antenna groups is continuously monitored and used to adjust future selections. By using feedback from previous evaluations and actual signal conditions, the system can reduce the complexity of future evaluation processes while maintaining high reliability through data-driven decision making.
Data Source
AI summary
Certain aspects of the present disclosure provide a method for wireless communications by a wireless device. The wireless device evaluates a plurality of antenna group combinations based on one or more criteria wherein each antenna group combination includes at least two antenna groups of multiple antennas and the one or more criteria involve a first performance value calculated separately for each antenna group in an antenna group combination under evaluation and a second performance value calculated collectively for the at least two antenna groups in the antenna group combination under evaluation. The wireless device selects a subset of the plurality of antenna group combinations, based on the evaluation.