5G UE Beam Selection via RSRP Data Tables
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Solution Overview
Problem
In 5G mobile communication systems, the high propagation path loss in millimeter-wave bands requires efficient beam management to maintain high signal quality and transmission performance, as existing methods like naive receiving beam sweeping are time-consuming and lead to low beam selection accuracy.
Innovation Solution
A method of signal reception that involves determining at least two measuring beams from receiving beams based on their distribution and a preset selection rule, receiving reference signals from these measuring beams, processing the Reference Signal Received Power (RSRP) values into data tables, and using a prediction network to determine optimal receiving beams for signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If naive receiving beam sweeping is used to select receiving beams, then all receiving beams can be measured, but the process is time-consuming and leads to low beam selection accuracy
Solution Approach 1:
The patent applies preliminary action by pre-selecting a subset of receiving beams based on spatial distribution and RSRP measurement results before final beam determination. The network device pre-processes beam measurement information and provides assistance information to the terminal, enabling the terminal to determine the optimal receiving beam without exhaustive sweeping of all beams, thus reducing time while maintaining accuracy
Solution Approach 2:
The patent segments the receiving beams into different spatial regions or groups, measuring and evaluating beams in segments rather than all at once. This allows the system to focus measurement resources on promising beam directions identified through spatial distribution analysis, reducing the total number of beams that need exhaustive measurement while preserving measurement precision
2Measurement precision
If all receiving beams are measured to ensure accurate beam selection, then beam selection accuracy improves, but the complexity of the measurement process increases
Solution Approach 1:
The network device performs preliminary processing of beam measurement information, organizing and filtering data before passing it to the terminal. This pre-processing reduces the complexity of the measurement process by structuring the information in advance, allowing the terminal to make accurate beam selections without handling the full complexity of measuring and processing all receiving beams
Solution Approach 2:
The network device acts as an intermediary that assists the terminal in beam selection. It provides assistance information containing processed measurement results and spatial distribution data, enabling the terminal to determine optimal beams without directly performing complex measurements on all beams itself, thus reducing device complexity while maintaining accuracy
3Productivity
If beam selection is performed quickly using limited measurements, then time is reduced, but beam selection accuracy deteriorates
Solution Approach 1:
The system performs preliminary spatial distribution analysis and RSRP measurements on receiving beams before final selection. The network device pre-processes measurement information and provides structured assistance data to the terminal, enabling rapid yet accurate beam determination without requiring exhaustive measurement of all beams, thus achieving both speed and accuracy
Solution Approach 2:
The patent applies local quality by focusing measurement and processing resources on specific spatial regions or beam groups that are most likely to contain optimal beams. Instead of uniformly measuring all beams, the system concentrates resources on promising directions identified through spatial distribution analysis, achieving accurate beam selection quickly by measuring only the necessary subset of beams
Data Source
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AI summary
A method of signal reception performed by a user equipment (UE), including receiving a reference signal by at least two measuring beams; determining at least two reference signal received power (RSRP) values measured by the at least two measuring beams; processing the at least two RSRP values measured by the at least two measuring beams as at least two data tables; and performing the signal reception according to the at least two data tables.