Beam Management via Preliminary Action and Extraction
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing beams to maintain optimal signal strength and avoid communication errors due to signal degradation and blockages, particularly in high mobility or fading environments.
Innovation Solution
User equipment (UE) measures signals using a set of candidate beams, determines the best beam based on beam parameters like RSRP, and switches to a different beam if the current beam's signal strength degrades, ensuring that the new beam has better parameters, thereby maintaining communication quality and reporting accurate measurement values to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE frequently switches beams to maintain optimal signal strength, then communication reliability is improved, but measurement accuracy deteriorates due to insufficient measurement time for each beam
Solution Approach 1:
The UE performs measurements on candidate beams in advance and stores measurement results before beam switching is needed. When beam switching occurs, the UE can retrieve previously stored measurement results rather than performing new measurements, thus maintaining measurement accuracy while enabling rapid beam switching for reliable communication.
Solution Approach 2:
The UE maintains a buffer of pre-measured beam parameters and measurement results that can be quickly accessed during beam switching events. This cushioning mechanism ensures that even when switching frequency increases, the UE always has accurate measurement data available for beam selection decisions.
2Measurement precision
If the UE performs comprehensive measurements on all candidate beams, then beam selection accuracy is improved, but processing time increases
Solution Approach 1:
The UE extracts and stores measurement results for individual candidate beams during initial measurement phases. When beam switching is required, the UE retrieves only the specific pre-measured results needed for the current decision, rather than performing comprehensive measurements on all beams again, thus reducing processing time while maintaining selection accuracy.
Solution Approach 2:
The UE performs comprehensive beam measurements in advance and stores the results for future use. This preliminary action allows the system to have accurate beam selection data readily available when switching is needed, eliminating the need to repeat time-consuming comprehensive measurements.
3Stability of the object's composition
If the UE switches beams rapidly in response to signal degradation, then communication stability is improved, but measurement reliability deteriorates due to insufficient time for accurate measurements
Solution Approach 1:
The UE maintains a cushion of pre-acquired measurement results that can be quickly accessed during rapid beam switching scenarios. This ensures that even when switching occurs rapidly in response to signal degradation, the UE relies on previously validated measurement data rather than attempting new measurements that would be unreliable due to time constraints.
Solution Approach 2:
The UE performs measurements and validates beam parameters in advance, creating a reliable data foundation that can support rapid beam switching decisions. When signal degradation occurs, the UE can quickly reference pre-validated measurement results to identify suitable alternative beams without compromising measurement reliability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a signal, transmitted by a base station, using a set of candidate beams. The UE may communicate, with the base station based at least in part on the measurement of the signal, using a first beam from the set of candidate beams. The UE may determine to switch the first beam based on a first value for a beam parameter associated with a second beam, from the set of candidate beams, satisfying a condition. The UE may measure, based at least in part on the determination to switch the first beam, the second beam to obtain a second value of the beam parameter. The UE may switch the first beam to the second beam if the second value satisfies a condition. Numerous other aspects are provided.