gsm移动通信网中gprs系统的研究与实现-通信与信息系统专业毕业论文.docx

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Research and Real i zati on for GPRs System In GSM MoM l e
work
Abs tract
GPRS,General Packet Radio Service,is a new type ofGSM-based mobile packet data bearing the popularity of Intemet in recent years,such data Services as E-mail, document transmission and web browse on Intemet have been way up;on the other hand,
personal Broad Band munications for the realization ofglobal slot-less range Call be expected soon as the global users of GSM have been Oil the rise year atter year and the development of 3G system is 0n the gradual gro训h of people's requirement for mobility and various data services has promoted the development of mobile munications technology,as a result,it has been mature in terms ofboth technology and market dearmnd—bination ofIntemet and municafions has e one of
me chieftask in current research.
Mobile munications is a process in which users in any矗xed spots or in motion switch data,tmnm“t information and access to databases by mealIs -basedGPRS system,whosedatabearing service owns patibility and pertinence,not only supports the present appfic撕ons
quite well but also makes it easy to realize the evolution ofnew paper firstly analyzes GPRS’S basic concepts,the Originating background,technological properties and value to dealers mad mobile users; throws more light on GPRS's technologies which provide the technological basis for the study on GPRS system in terms work
structure,system functions and main interfaces of work ,the paper
analyzes and pmbes GPRS voice model,radio control charmel and traffic channel capacity; Additionally,it does in-depth research on radio channel data structure,signaling flow,puts forward the approaches to calculate and analyze GPRS system radio control channel and
traffic charnel,and,it also reviews the effects ofvarious coding ways and different number of
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