Power Control Loops for Over-the-Air Update Aggregation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing power control loops for uplink transmission in over-the-air update aggregation procedures, particularly in ensuring that updates are received at a consistent power level to maintain aggregation accuracy.
Innovation Solution
The implementation of a power control loop within a federated learning configuration, which is transmitted from a base station to user equipment (UE), facilitates the adjustment of transmit power to ensure that updates are received at a received power that satisfies a specific condition, thereby maintaining the accuracy of over-the-air update aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power control loops are implemented for uplink transmission in over-the-air update aggregation, then received power consistency is improved, but device complexity increases
Solution Approach 1:
The patent implements power control loops that use feedback mechanisms to adjust transmit power based on received power measurements. The base station measures the received power of updates from UEs and sends power control adjustments back to the UEs, creating a closed-loop system that maintains received power consistency while managing the complexity through standardized feedback procedures.
Solution Approach 2:
The patent changes the transmit power parameter dynamically based on measured received power levels. By adjusting the power parameter in response to observed conditions, the system achieves received power consistency without requiring complex structural changes to the overall architecture, thereby managing device complexity while improving measurement precision.
2Measurement precision
If transmit power is adjusted to ensure consistent received power levels, then aggregation accuracy is improved, but energy consumption increases
Solution Approach 1:
The power control loops use feedback from the base station regarding received power levels to adjust transmit power only when necessary. This feedback mechanism ensures that UEs transmit at the minimum required power to achieve consistent received power levels, thereby maintaining aggregation accuracy while minimizing unnecessary energy consumption from excessive transmit power.
Solution Approach 2:
The system applies partial power adjustment rather than maximum power transmission in all cases. By transmitting at precisely the power level needed to meet the received power condition (no more, no less), the system achieves aggregation accuracy while avoiding the energy waste that would result from excessive power transmission.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a federated learning configuration comprising an indication of a power control loop for providing an update associated with a machine learning component, wherein the power control loop facilitates receiving the update at a received power that satisfies a received power condition associated with an over-the-air update aggregation procedure. The UE may transmit the update to the base station based at least in part on the federated learning configuration. Numerous other aspects are provided.