Dynamic DTX Threshold Calculation for 5G-NR Multiplexed Signals
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Solution Overview
Problem
Existing solutions for detecting discontinuous transmission in 5G-NR signals are unreliable when multiplexing is employed, particularly in scenarios where multiple uplink control information (UCI) signals are multiplexed on a common physical resource block, making it challenging for receivers to accurately determine the DTX status of user equipment (UE).
Innovation Solution
A method involving the computation of a DTX threshold value, which takes into account the received signal strength indicator (RSSI), the number of multiplexed UCI, and scaling factors to differentiate between active and inactive transmission states of user equipment, thereby enhancing detection accuracy in multiplexed scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing DTX detection solutions are used, then the detection process is simple, but the detection reliability deteriorates when multiplexing is employed
Solution Approach 1:
The patent changes the parameter used for DTX detection from a simple threshold comparison to a dynamic threshold calculation that incorporates RSSI and multiplexing information. The DTX threshold is computed as a function of RSSI and the number of multiplexed UCI signals, allowing the detection criterion to adapt to different transmission conditions and maintain high reliability across various scenarios.
Solution Approach 2:
The patent introduces an intermediary calculation step that computes a DTX threshold value based on RSSI and multiplexing parameters before performing the final DTX decision. This intermediary threshold computation acts as a mediator that reconciles the complexity of multiplexed signals with the simplicity of the detection process, enabling reliable DTX detection without requiring complex signal analysis.
2Measurement precision
If a fixed DTX threshold is used, then the detection process is simple, but the measurement precision deteriorates in multiplexed scenarios
Solution Approach 1:
The patent transforms the fixed threshold into a dynamic parameter that changes based on RSSI and multiplexing conditions. The DTX threshold is no longer a constant value but is calculated as a function of these parameters, enabling precise adaptation to different transmission scenarios and significantly improving measurement precision for DTX status detection.
Solution Approach 2:
The patent introduces dynamics into the threshold calculation by making it dependent on varying parameters such as RSSI and the number of multiplexed UCI signals. This dynamic threshold adjustment allows the detection system to maintain high precision across different operating conditions without requiring complex signal processing or multiple detection stages.
Data Source
AI summary
Apparatuses, systems, and techniques to detect whether fifth-generation new radio (5G-NR) devices are transmitting data. In at least one embodiment, a receiver detects whether 5G-NR devices are transmitting 5G-NR signals based on a number of 5G-NR devices sharing a same time and frequency.