V2X Sidelink Reception with Bandwidth-Based MSD Sensitivity Control
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Solution Overview
Problem
The occurrence of harmonics and intermodulation distortion components in uplink signals can lead to unsatisfied reference sensitivity for downlink signals in mobile devices, particularly in 3GPP LTE and NR systems, affecting the minimum average power required for effective communication.
Innovation Solution
A device configured with a transceiver and processor to manage uplink and sidelink signals, applying Maximum Sensitivity Degradation (MSD) values for different bandwidths to ensure optimal reception, with specified MSD values for bandwidths of 10 MHz, 20 MHz, 30 MHz, and 40 MHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink signal transmission is performed in mobile devices, then communication functionality is enabled, but harmonics and intermodulation distortion components occur causing reference sensitivity degradation
Solution Approach 1:
The patent applies Maximum Sensitivity Degradation (MSD) values that are determined based on bandwidth parameters to adjust the reference sensitivity requirements. Different MSD values are assigned depending on the bandwidth configuration (e.g., 10.7 dB for 10 MHz, 7.7 dB for 20 MHz, 5.8 dB for 30 MHz, 4.7 dB for 40 MHz), thereby changing the sensitivity parameter to account for the harmful effects while maintaining communication functionality
2Productivity
If bandwidth for sidelink signal reception is increased, then data transmission capacity is improved, but sensitivity degradation due to uplink interference increases
Solution Approach 1:
The patent establishes a direct relationship between bandwidth parameter and MSD value, where wider bandwidths are assigned higher MSD values. This allows the system to accommodate increased data transmission capacity while compensating for the corresponding increase in sensitivity degradation through adjusted reference sensitivity thresholds
Data Source
AI summary
A device configured to operate in a wireless system, the device including: a transceiver configured with a V2X(Vehicle to Everything), a processor operably connectable to the transceiver, wherein the processer is configured to: control the transceiver to transmit an uplink signal via operation band 20, control the transceiver to receive a sidelink signal vis operation band n38, wherein a value of Maximum Sensitivity Degradation (MSD) is applied to a reference sensitivity for receiving the sidelink signal.