Power control in over the air aggregation for federated learning
US12035256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Nov 25, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/367
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A parameter server located at a base station may coordinate federated learning among multiple user equipment (UEs) using over-the-air (OTA) aggregation with power control to mitigate aggregation distortion due to amplitude misalignment. The parameter server may select a first group of UEs for a first OTA aggregation session of a federated learning round based on a common received power property of each UE in the first group of UEs. The parameter server may transmit a global model to the first group of UEs. Each UE in the first group may train the global model based on a local dataset and transmit values associated with the trained local model. The parameter server may receive, on resource elements for the first group of UEs, a first aggregate amplitude modulated analog signal representing a combined response from the first group of UEs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.