| CPC H04L 41/145 (2013.01) [H04L 41/16 (2013.01); H04L 41/34 (2022.05); H04L 41/5058 (2013.01); H04L 43/06 (2013.01)] | 4 Claims |

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1. A method of a network data analytics function (NWDAF) in a wireless communication system, the method comprising:
receiving, from a network function (NF), a request message for analytics information;
identifying that federated learning (FL) is required;
transmitting, to a network repository function (NRF), a discovery message for discovering at least another NWDAF for FL that supports service related FL, wherein the discovery message comprises information about FL capability;
receiving, from the NRF, a response message with respect to the discovery message, wherein the response message with respect to the discovery message comprises information about the at least another NWDAF for FL;
selecting a target NWDAF for FL;
transmitting, to the target NWDAF for FL, a request message comprising analytics identifier (ID), machine learning (ML) model ID, and a ML model;
receiving, from the target NWDAF for FL, information about the ML model which is trained by the target NWDAF for FL; and
obtaining an integrated model based on the information about the model which is trained by the target NWDAF for FL.
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