RADIO COMMUNICATIONS DEVICE AND METHOD FOR INTERSYSTEM HANDOVER

摘要

A radio communications device is arranged to communicate time division signals (60 and 70) over first (40) and second (50) time discontinuous systems having first and second frame structures respectively. Switching means (120) switches between communicating signals (60) over the first system (40) during time periods of the first frame structure and communicating signals (70) over the second system (50) during time periods of the second frame structure. Hence over a given period of time the device simultaneously communicates time division signals over the first (40) and second (50) systems.