A method for coordinating transmission and reception operations of a first and a second radio module in a communications apparatus, the first radio module communicating with a first communications device in a first protocol to provide a first wireless communications service and the second radio module communicating with a second communications device in a second protocol to provide a second wireless communications service. The method includes estimating, by the first radio module, time remaining for the second radio module; receiving, by the second radio module, information regarding the estimated remaining time from the first radio module; determining, by the second radio module, whether time required for the operations of the second radio module exceeds the estimated remaining time; and scheduling, by the second radio module, operations of the second radio module according to the information regarding the estimated remaining time received from the first radio module.