Procedure for switching from a first radio communication mode to a second radio communication mode and a radio device with multiple modes for switching

摘要

The switching method from a first mode to a second mode having a first and second radio access with different clocks. The mobile terminal is locked to a first radio communications mode and first clock. The time offset is calculated between the clocks on the first and second systems, and the time corrected from the offset calculation. The mobile terminal is switched to the second communications mode with the second clock.