UE Beam Sweeping with Dynamic Beam Subset Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently selecting optimal communication beams based on the operating state of user equipment (UE), leading to suboptimal performance and resource utilization.
Innovation Solution
A beam sweeping procedure that dynamically selects a subset of beams from a plurality based on the current UE operating state, enabling more efficient communication beam selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full beam sweeping procedure is performed using all available beams, then communication reliability is improved, but time consumption and processing delay increase
Solution Approach 1:
The patent divides the complete beam set into multiple subsets and performs beam sweeping on selected subsets based on UE operating state. This segmentation allows the system to perform beam selection on a smaller, more manageable portion of beams when conditions permit, reducing time consumption while maintaining reliability through selective subset evaluation.
Solution Approach 2:
The patent dynamically adjusts the beam sweeping configuration based on UE operating state (mobility, signal quality, buffer status). When the UE is stationary or in good conditions, fewer beams are swept; when mobile or in poor conditions, more beams are evaluated. This dynamic adaptation resolves the contradiction by making beam selection time variable rather than fixed.
2Reliability
If beam sweeping is performed frequently to track UE movement, then communication quality is improved, but system overhead and energy consumption increase
Solution Approach 1:
The patent changes the beam sweeping parameters (number of beams, sweeping frequency, subset selection) based on UE operating state parameters such as mobility level, signal quality, and buffer status. This allows the system to perform frequent beam sweeping only when necessary (high mobility or poor signal) and reduce sweeping when conditions are stable, optimizing the trade-off between communication quality and energy consumption.
Solution Approach 2:
The system uses feedback from UE operating state monitoring to adjust beam sweeping behavior. By continuously monitoring UE conditions and adapting beam selection strategies accordingly, the system avoids unnecessary beam sweeping operations while maintaining communication quality, thereby reducing energy consumption.
3Device complexity
If a static beam subset is used for beam sweeping, then device complexity is reduced, but adaptability to different UE operating states deteriorates
Solution Approach 1:
The patent implements dynamic beam subset selection based on UE operating state rather than using a fixed static subset. The system adapts the beam sweeping configuration (which beams to include, how many to sweep) according to real-time UE conditions such as mobility and signal quality, thereby achieving high adaptability without requiring complex real-time optimization algorithms.
Solution Approach 2:
The system pre-defines multiple beam subsets that can be selected based on UE operating state. Rather than computing optimal beam subsets in real-time (which would increase complexity), the system prepares multiple candidate subsets in advance and selects from them based on current conditions, maintaining low complexity while achieving good adaptability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a beam sweeping procedure that selects a communication beam for communicating in a wireless network, the beam sweeping procedure being based at least in part on a beam sweeping subset of beams that is dynamically selected from a plurality of beams based at least in part on a current UE operating state. The UE may communicate in the wireless network based at least in part on the communication beam that is selected based at least in part on the beam sweeping procedure. Numerous other aspects are described.