At the time of heterodyne detection, information is reproduced constantly in the optimum condition. And, operation for the information stored in the respective storages is performed by the user in the same procedure using operation units such as a keyboard, a touch pad, with indication on the LCD confirmed. Alternatively, a compressor and an anchor may directly join with each other at a shared interface. The triggering algorithm includes instructions for the access terminal to report downlink measurements as a function of trigger events detected over the anchor carrier andor the supplementary carrier.