The Evolution of GSM Data Towards UMTS
Kevin Holley, Tim Costello · 1999
GSM data services have launched a new era of mobile communications. The early analogue cellular modems were unattractive to the market as they were slow and unreliable. GSM now offers a high quality 9600 bits per second link which opens the way for useful data applications and the Short Message Service provides guaranteed delivery of small data packets even if the phone is switched off when the message is first sent. Now the market for data is moving onwards (more bursty) and upwards (more traffic), and the ETSI standards groups are working towards higher data rates but more significantly also towards packet data services, initially with GPRS and multislot data but eventually UMTS will provide much higher bandwidth.. This will certainly broaden the appeal to end users because data is routed more efficiently through the network and hence at lower cost, and also access times are reduced. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.