ＧＰＲＳ（Ｇｅｎｅｒａｌ　 Ｐａｃｋｅｔ Ｒａｄｉｏ　Ｓｅｒｖｉｃｅ），即通用分组无线数据业务，是ＧＳＭ网络向第三代过渡的重要技术。我国目前已建成了世界上最大的ＧＳＭ网络，这使得跟踪研究ＧＰＲＳ变得尤为重要。 欧洲早在１９９３年就提出了在ＧＳＭ网上开通ＧＰＩ GPRS (General Packet Radio Service), General Packet Radio Service, is an important technology for transition from GSM network to the third generation. At present, China has built the largest GSM network in the world, which makes it very important to follow GPRS research. As early as 1993, Europe proposed the opening of GPI on the GSM network