The disclosure is directed to a method and apparatus for configuring a table of a network apparatus in a Long Term Evolution (LTE) time division duplexing (TDD) communication system. In one of the exemplary embodiments, the method would include identifying, from UL HARQ reference configurations and DL HARQ reference configurations, valid combinations that are compatible with an eIMTA relay; obtaining, for each of the valid combinations of the UL HARQ reference configurations and the DL HARQ reference configurations, a set of valid UL-DL subframe configuration that is compatible with the eIMTA relay; and obtaining, for each of the valid combinations of the UL HARQ reference configurations and the DL HARQ reference configurations, a set of valid SubframeConfigurationTDD that is compatible with the eIMTA relay.