Signal Parameter Customization for Low-Bit Quantized Links
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Solution Overview
Problem
Existing digital communication systems face challenges in optimizing signal generation parameters due to limited capabilities brought about by low bit quantization, particularly in receivers and transmitters with low bit quantization ADC and DAC capabilities, which affect block error rate (BLER) performance and increase complexity.
Innovation Solution
Customizing signal generation parameters such as bandwidth extension ratio, roll off factor, and guard band factor based on device capabilities, allowing network elements to adapt signal parameters for improved communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the quantity of quantization bits is increased, then BLER performance is improved, but device complexity increases
Solution Approach 1:
The patent changes signal generation parameters (bandwidth extension ratio, roll off factor, guard band factor) to optimize performance for low-bit quantization scenarios. By adjusting these parameters, the system achieves improved BLER performance without requiring increased quantization bits, thus avoiding the complexity associated with higher-bit quantization while maintaining reliability.
2Device complexity
If low bit quantization is used, then device complexity is reduced, but BLER performance deteriorates
Solution Approach 1:
The patent compensates for the limitations of low-bit quantization by optimizing signal generation parameters. The network element customizes parameters such as bandwidth extension ratio, roll off factor, and guard band factor based on device capabilities, thereby maintaining acceptable BLER performance even with reduced quantization bits and lower device complexity.
Solution Approach 2:
The system implements a feedback mechanism where the device provides capability information to the network element, which then adjusts signal generation parameters accordingly. This feedback loop ensures that the signal parameters are optimized for the specific quantization capabilities of the device, balancing complexity and performance.
3Productivity
If signal generation parameters are customized based on device capabilities, then communication efficiency is optimized, but system complexity increases
Solution Approach 1:
The patent customizes signal generation parameters (bandwidth extension ratio, roll off factor, guard band factor) based on device capabilities to optimize communication efficiency. The network element selects appropriate parameter sets from predefined configurations, which improves productivity while keeping the complexity management through structured parameter selection rather than complex real-time optimization.
Data Source
AI summary
At a device (such as a user equipment), the provision, to a network element (such as a base station), of one or more parameters representative of capabilities of the device may be shown to allow the network element to customize signal generation parameters that are provided to the device. The customized signal generation parameters may be used, by the device, when generating signals destined for the network element or may be used, by the device, when decoding signals received from the network element. The customized signal generation parameters may be selected from among a group of parameters, where the group includes a bandwidth extension ratio, a roll off factor and a guard band factor.