Reception Beam Selection via Quality Representation in 5G MIMO
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Solution Overview
Problem
In modern wireless communication systems, handling large sets of reception beams becomes computationally expensive and time-consuming, particularly in 5G networks with Massive MIMO, where efficient beam selection is necessary to ensure good signal quality without processing all beams.
Innovation Solution
A method for selecting a subset of reception beams based on beam quality representation, which determines the suitability of each beam for processing, allowing for efficient beam selection and processing only the beams that provide good enough reception, thereby reducing computational complexity and processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all reception beams are processed to ensure good signal quality, then reception reliability is improved, but computational complexity and processing time increase
Solution Approach 1:
The patent segments the complete set of reception beams into multiple subsets and processes only selected subsets based on beam quality representations. This segmentation allows the system to divide the large beam set into manageable portions, processing only those beams that meet quality thresholds, thereby reducing computational complexity while maintaining reception reliability through selective processing of high-quality beams.
2Reliability
If all reception beams are processed to ensure good signal quality, then reception reliability is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary determination of beam quality representations for all reception beams before actual beam processing. This preliminary action identifies and filters out low-quality beams in advance, so that only beams meeting quality criteria proceed to subsequent processing stages. This preliminary filtering reduces the number of beams requiring full processing, thereby reducing processing time while ensuring that only quality beams are processed for reliable reception.
3Device complexity
If a subset of reception beams is selected for processing, then computational complexity is reduced, but beam quality may deteriorate
Solution Approach 1:
The patent implements feedback mechanisms where beam quality representations are determined and used to guide the selection of beams for processing. The system continuously monitors beam quality metrics and adjusts the selection of beams to process based on this feedback. This feedback loop ensures that only beams meeting quality thresholds are selected, maintaining beam quality while reducing the number of processed beams, thus resolving the contradiction between computational complexity and beam quality.
4Speed
If beam selection is performed without quality representation, then processing speed is improved, but beam selection accuracy deteriorates
Solution Approach 1:
The patent performs preliminary determination of beam quality representations before beam selection, creating a quality metric for each beam in advance. This preliminary action enables the system to quickly reference pre-computed quality information during beam selection, avoiding time-consuming quality assessments during the selection process itself. This approach maintains processing speed while improving beam selection accuracy by basing selections on pre-analyzed quality representations.
Data Source
AI summary
There is disclosed a method of operating a receiving radio node in a radio access network. The method includes selecting, from a set of defined reception beams formed by reception beamforming, one or more beams for processing, wherein selecting is based on a beam quality representation determined for one or more beams of the set for one or more transmitters.