UE Autonomous Calibration via Random Access Occasion Selection
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Solution Overview
Problem
Existing wireless communication systems face challenges in enabling user equipment (UE) to perform autonomous resource detection for calibration without causing interference to neighboring UEs and degrading uplink throughput.
Innovation Solution
The UE detects and measures received power during synchronization signal blocks or channel state information reference signals, selects random access channel occasions based on the measured power, and performs calibration during determined occasions, thereby avoiding interference and maintaining uplink throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs autonomous calibration transmissions, then calibration accuracy is improved, but interference to neighboring UEs increases
Solution Approach 1:
The UE performs calibration transmissions only in specific local time-frequency resources (random access occasions) rather than continuously across all resources. By selecting specific ROs based on measured downlink signal quality, the calibration is localized to appropriate moments when interference impact is minimized, thus maintaining calibration accuracy while reducing harmful interference to neighboring UEs.
Solution Approach 2:
The UE performs preliminary measurements of downlink synchronization signal blocks or channel state information reference signals before initiating calibration transmissions. These preliminary actions allow the UE to identify suitable random access occasions in advance, ensuring that calibration transmissions occur only when conditions are favorable, thereby preventing interference to neighboring UEs while maintaining calibration accuracy.
2Adaptability or versatility
If the UE performs autonomous calibration transmissions, then calibration functionality is enabled, but uplink throughput degradation occurs
Solution Approach 1:
The UE performs calibration transmissions partially by utilizing only specific random access occasions rather than all available uplink resources. By selecting a subset of ROs based on downlink signal measurements, the calibration functionality is enabled while the impact on uplink throughput is minimized, as not all uplink resources are consumed by calibration activities.
Solution Approach 2:
The UE performs calibration transmissions periodically by selecting random access occasions that occur at specific intervals rather than continuously. This periodic approach allows calibration functionality to be maintained while ensuring that uplink throughput is not continuously degraded, as calibration activities are distributed over time rather than occupying resources continuously.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for user equipment autonomous resource detection for calibration are provided. For example, a method may include detecting and measuring, by a user equipment, received power during at least one synchronization signal block or channel state information reference signal. The method may also include selecting, by the user equipment, at least one random access channel occasion based on the detected and measured received power. The method may further include determining, by the user equipment, at least one random access channel occasion corresponding to the selected at least one synchronization signal block. The method may additionally include performing, by the user equipment, a user equipment calibration during the determined at least one random access channel occasion.