Adaptive Transceiver Power Modes for Interference and Process Variation
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Solution Overview
Problem
Existing transceivers consume excessive power due to being designed for worst-case operating conditions, leading to inefficiency under favorable conditions, and variations in manufacturing process corners and operating temperatures are not adequately addressed.
Innovation Solution
An intelligent transceiver integrated circuit that includes a jammer detector, process monitor, and temperature monitor, utilizing a state machine to transition between high and low power modes based on interference levels, process corners, and temperature, optimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transceivers are designed for worst-case operating conditions to ensure reliability, then reliability is improved, but power consumption increases excessively
Solution Approach 1:
The transceiver dynamically adjusts its operating mode (high linearity/high power or low linearity/low power) based on real-time monitoring of interference levels, process corners, and temperature conditions. This dynamic adaptation allows the system to maintain reliability when needed while reducing power consumption under favorable conditions.
Solution Approach 2:
The system changes operational parameters (linearity level, power level) based on monitored conditions. By adjusting these parameters according to actual operating environment rather than fixed worst-case design, the transceiver achieves both reliability and power efficiency.
2Reliability
If transceivers operate in high linearity mode to handle interference, then reliability is improved, but power consumption increases
Solution Approach 1:
The transceiver switches between high linearity and low linearity modes dynamically based on monitored interference levels. When interference is detected, it operates in high linearity mode for reliability; when conditions are favorable, it switches to low linearity mode to reduce power consumption.
Solution Approach 2:
The system adjusts the linearity parameter of the transceiver based on real-time monitoring of interference conditions, allowing optimal balance between reliability and power efficiency under different operating scenarios.
3Area of stationary object
If transceivers operate in high power mode to ensure coverage, then coverage area is improved, but power consumption increases
Solution Approach 1:
The transceiver dynamically adjusts its power level based on monitored conditions including temperature and process corners. Under favorable conditions, it operates in low power mode to conserve energy; when coverage requirements demand, it switches to high power mode.
Solution Approach 2:
The system changes the power parameter based on real-time monitoring of operating conditions, allowing the transceiver to optimize between coverage area and power consumption depending on environmental factors.
4Reliability
If transceivers are designed with fixed parameters for worst-case conditions, then reliability is improved, but adaptability to different operating conditions deteriorates
Solution Approach 1:
The system transitions from fixed worst-case parameters to dynamic parameters that adapt based on monitored conditions. The transceiver continuously monitors interference, temperature, and process corners, adjusting its operation accordingly, thus achieving both reliability and adaptability.
Solution Approach 2:
The system implements feedback through monitoring of operating conditions (interference levels, temperature, process corners) and uses this information to adjust its operation. This closed-loop approach enables the transceiver to adapt to different conditions while maintaining reliability.
Data Source
AI summary
An integrated circuit for achieving power reduction in a transceiver may include a jammer detector that determines an interference level corresponding to a received signal, and a transmit power detector that determines a required transmit power level for a transmitted signal. The integrated circuit may also include at least one of the following: a process monitor that determines process corners of components within the receiver and/or the transmitter, and a temperature monitor that determines a temperature of the receiver and/or the transmitter. The integrated circuit may also include a state machine. The state machine may transition the receiver from a high linearity mode to a low linearity mode if a set of operating conditions is satisfied. Similarly, the state machine may transition the transmitter from a high power mode to a low power mode if a set of operating conditions is satisfied.