Beam Measurement Normalization for 5G Beam Selection
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Solution Overview
Problem
In 5G communication systems, especially those operating in millimeter wave bands, there is a challenge in efficiently measuring and selecting the best beams for communication due to high propagation loss, varying channel conditions, and the need for continuous measurement of multiple beam pairs, which results in imbalanced sample collection and inaccurate beam selection.
Innovation Solution
A method and apparatus for reporting beam measurement state information, involving beam state measurement, normalization, and weighted averaging to standardize sample collection across all beam pairs, allowing for efficient beam selection and prioritization based on recent samples, thereby improving beam pair selection and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous measurement of multiple beam pairs is performed to select the best beam, then beam selection accuracy is improved, but sample collection becomes imbalanced and measurement complexity increases
Solution Approach 1:
The patent segments the measurement process into two distinct parts: (1) initial beam measurement and selection, and (2) subsequent refined measurement of selected beams. This segmentation allows the system to first identify candidate beams through comprehensive measurement, then focus resources on precise measurement of only those candidates, reducing overall measurement complexity while maintaining accuracy.
Solution Approach 2:
The patent applies partial action by performing exhaustive measurement only initially to select beams, then performing limited measurement only on the selected beams for subsequent reporting. This avoids the excessive action of continuously measuring all beams at full precision, thereby reducing measurement complexity while preserving beam selection accuracy.
2Reliability
If measurement samples are collected during a predetermined period to exclude shadow effect and fading effect, then measurement reliability is improved, but sample collection becomes imbalanced across different beams
Solution Approach 1:
The patent performs preliminary beam measurement and selection before final beam determination. During this preliminary phase, measurement samples are collected over a predetermined period to exclude shadow and fading effects. The selected beams from this preliminary phase are then used for subsequent reporting without requiring balanced sample collection across all beams, as the selection has already been made based on the preliminary reliable measurements.
Solution Approach 2:
The patent collects measurement samples excessively for all beams during the preliminary phase to ensure reliable beam selection, then applies partial action by performing limited measurement only on the selected beams for subsequent reporting. This resolves the contradiction by ensuring reliability during selection while avoiding the need for balanced sample collection across all beams in the ongoing operation.
3Productivity
If beam state information is normalized and weighted averaging is applied, then beam selection efficiency is improved, but processing complexity increases
Solution Approach 1:
The patent applies normalization and weighted averaging only to the beam state information of selected beams, not to all beams. This partial application of processing techniques improves beam selection efficiency for the candidate beams while avoiding the excessive processing complexity that would result from applying these techniques to all beams in the system.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Disclosed is a method of reporting beam measurement state information by a User Equipment (UE). The method may include: measuring beam state information by using a first reception chain and a second reception chain; controlling beam state information on the first reception chain to correspond to beam state information on the second reception chain; calculating state information on each beam based on the controlled beam state information on the first reception chain and beam state information on the second reception chain; and reporting state information on one or more beams.