Implementation aspects of the pan-European digital mobile radio system

In 1991 a digital mobile radio system, the so-called Group Special Mobile (GSM) system, will be introduced in Europe. The author presents the modulation and coding techniques which have been standardized recently For the GSM. for the baseband processing algorithms of speech coding, channel coding, and adaptive equalization, VLSI requirements are addressed. The new system has been designed for a capacity of about 10 million subscribers in Europe. Hand-held pocket telephones are expected to play a major role. The typical requirements are weight <0.8 kg, volume <900 cm, stand-by operation >24 h, and active operation >1 h. A major problem is the reduction of the power consumption, which requires that certain functions be switched off in the standby mode