Method and device for transmission of signals in a GSM system

摘要

Methods and devices for transmitting a burst of signals in a cellular radio system supporting data transmission using EGPRS/EGPRS2 are provided. The transmission involves providing additional symbols in the EGPRS/EGPRS2 burst thereby forming a long burst and pulse shaping the long burst to form a long baseband signal whose duration exceeds the duration of one EGPRS/EGPRS2 time slot. The long baseband signal is then shortened to a shortened burst having the duration of an EGPRS/EGPRS2 time slot wherein the shortened burst fulfills the same spectrum mask requirement as the EGPRS/EGPRS2 burst, which can be transmitted.