This application provides a method and communication apparatus. In an example method, a first communication apparatus obtains a first artificial intelligence (AI) model corresponding to a first task. The first communication apparatus obtains first data corresponding to a first feature, where the first feature is a feature of data processed by using the first AI model, and the first data is used for drawing inferences for decision-making of the first task. The first communication apparatus determines an inference result for the decision-making of the first task based on the first data and the first AI model.