Method and system for direct communication between mobile terminals

摘要

The invention relates to a method for direct communication between mobile terminals using GSM carrier frequencies, each carrier frequency transmitting TDMA frames that have a frame duration of 4.615 ms, each TDMA frame comprising 8 time slots, each of which has a duration of 577 microseconds. The method of the invention is characterized in that a multiframe is agreed on by combining a plurality of, preferably 26, TDMA frames, and the involved terminals are operated in simplex mode and always transmit and receive in separate time slots within an agreed TDMA frame of the multiframe.