Dynamic Beam Weight Calculation for Wireless UE
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Solution Overview
Problem
Current wireless communication systems face limitations in dynamically adapting beamforming techniques, particularly in switching between static and dynamic beam weight calculations, which can lead to suboptimal performance due to fixed codebooks that may not suit varying channel conditions, resulting in reduced communication quality and resource inefficiency.
Innovation Solution
Implementing a method that allows user equipment (UE) to switch from a static analog beamforming codebook to a dynamic analog beam weight calculation based on conditions such as signal blockage or performance requirements, using channel estimation techniques to select optimal beam weights for improved communication quality, and requesting necessary reference signals from the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a static analog beamforming codebook is used, then device complexity is reduced and ease of operation is improved, but communication quality deteriorates due to inability to adapt to varying channel conditions
Solution Approach 1:
The patent implements dynamic beam weight calculation that allows the system to transition from static codebook-based beamforming to dynamic beam weight computation based on channel conditions. The UE calculates beam weights dynamically using channel state information when conditions permit, enabling adaptation to varying channel conditions while maintaining system complexity manageable through selective activation based on predefined criteria.
2Adaptability or versatility
If dynamic beam weight calculation is implemented, then communication quality is improved through adaptation to channel conditions, but device complexity and resource consumption increase
Solution Approach 1:
The system dynamically switches between static and dynamic beamforming modes based on channel conditions and UE capabilities. When dynamic beam weight calculation is activated, the UE computes beam weights using channel state information from reference signals, providing adaptability to varying channel conditions while maintaining manageable complexity through selective activation.
Solution Approach 2:
The patent changes the parameter of beam weight selection from fixed codebook indices to dynamically computed weights based on channel state information. This parameter change enables the system to adapt beamforming weights to current channel conditions, improving versatility while the selective activation mechanism controls the associated complexity increase.
3Productivity
If dynamic beam weight calculation is used, then resource efficiency is improved through optimized beamforming, but loss of time increases due to additional reference signal processing
Solution Approach 1:
The system performs preliminary actions by configuring the UE with dynamic beam weight calculation capabilities and necessary reference signal resources in advance. The base station configures the UE with indication information enabling dynamic beam weight calculation, and the UE prepares to use channel state information from reference signals for beam weight computation, reducing processing delays during actual communication.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, based at least in part on at least one of a plurality of conditions being met, to switch from a static analog beamforming codebook to a dynamic analog beamforming beam weight calculation for selecting beam weights for communications between the UE and a base station. The UE may select the beam weights for the communications using the dynamic beam weight calculation. The UE may communicate, using the beam weights, with the base station. Numerous other aspects are described.