- Patent Title: Power control in over the air aggregation for federated learning
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Application No.: US17544581Application Date: 2021-12-07
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Publication No.: US12035256B2Publication Date: 2024-07-09
- Inventor: Eren Balevi , Taesang Yoo , Tao Luo , Srinivas Yerramalli , Junyi Li , Hamed Pezeshki
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: QUALCOMM Incorporated
- Main IPC: H04W52/50
- IPC: H04W52/50 ; H04W4/06 ; H04W52/22 ; H04W52/24 ; H04W52/36

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.
Public/Granted literature
- US20230180152A1 POWER CONTROL IN OVER THE AIR AGGREGATION FOR FEDERATED LEARNING Public/Granted day:2023-06-08
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