Dynamic ADC Resolution Control for UE Power-Signal Tradeoffs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, especially those operating at higher carrier frequencies, the power consumption of user equipment (UE) increases due to higher sampling frequencies and ADC resolutions, leading to reduced battery life and inefficient system performance.
Innovation Solution
Implementing a dynamic analog-to-digital converter (ADC) capability that allows UE to transmit a capability message indicating supported ADC resolution sizes to the base station, enabling optimized communication by dynamically configuring ADC resolution based on power consumption and performance tradeoffs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If higher carrier frequencies are used to improve communication performance, then signal quality and data rate are improved, but power consumption increases due to higher sampling frequencies and ADC resolutions
Solution Approach 1:
The patent implements dynamic ADC resolution adjustment, allowing the UE to switch between different ADC resolution configurations based on current communication requirements. The UE transmits capability messages indicating supported ADC resolutions, and the gNB configures the appropriate resolution dynamically, enabling the system to adapt between high performance and low power consumption states as needed
Solution Approach 2:
The patent changes the ADC resolution parameter dynamically based on communication conditions. By supporting multiple ADC resolution configurations (e.g., different bit depths) and selecting appropriate configurations through capability messaging and RRC configuration, the system optimizes the balance between communication performance and power consumption
2Measurement precision
If higher ADC resolution is used to improve signal processing quality, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent enables dynamic switching between different ADC resolution levels. The UE reports its supported ADC resolutions through capability messages, and the gNB configures the appropriate resolution based on current signal conditions, allowing the system to use high resolution only when necessary for maintaining signal processing quality while reducing resolution during normal operation to save power
Solution Approach 2:
The patent implements configurable ADC resolution parameters with support for multiple bit depth configurations. By dynamically adjusting the ADC resolution parameter based on signal-to-noise ratio requirements and power consumption constraints, the system maintains measurement precision when needed while reducing power consumption during standard communication operations
Data Source
AI summary
Methods, systems, and devices for wireless communication are described for one or more aspects of dynamically configuring an analog-to-digital converter (ADC). A user equipment (UE) may determine a set of supported ADC resolution sizes including one or more dynamically configurable bit quantities. The UE may transmit a capability message including an indication of the set of ADC resolution sizes to a base station. The UE may indicate, to the base station, a power consumption factor or a table of signal-to-quantization noise ratios (SQNR) per bit quantity supported by the UE's ADC. In some cases, the base station may enable, based on the set of ADC resolution sizes, clipping of a power amplifier and one or more associated precoding parameters, and may indicate the precoding parameters to the UE. The UE may select an ADC resolution size for processing received messages.