The Design And Practice On The Transformation Scheme About Ganzhou Unicom’s Gprs Network

With the explosive development of the Internet, The second generation cellular network must adapt to the new situation, has the ability to provide high data rate service, just right the GPRS technology turns this problem of the GSM network into a reality. The GPRS system is introduced the wireless packet switching technology based on the GSM network, can provide wireless packet data access service for mobile users, it opens a new application mode of the wireless data service, so that the operator can conveniently, fast, low construction cost provide mobile packet data service for its customers.The thesis first introduces the research background and significance of the paper. In early2008, Ganzhou UniCom company initially created in GRPS network, Because of limited funds, but also to reduce the existing network adjustment, In the choice of equipment selected supports both BSC32also supports the BSC6000Huawei external PCU6000device. With the increasing use of data service and GPRS mobile phone terminal popularity, The users of mobile phone Internet showed a linear increase, This makes the operator unexpected. Ganzhou Unicom’s GPRS data flow is increased times year by year, in during of the2011Spring Festival, the GPRS data flow approximated external PCU device limits, this had Caused by a large number of mobile phone user complaints in slow connection speed, slowly browsing webpage or can not get on the Internet. In order to improve the user perception and avoid paralysis to the network network caused by t the high data flow shock, Ganzhou Unicorn’s GPRS network is badly in need of introducing large capacity PCU equipment, the job of the transforms to Ganzhou Unicorn’s external PCU device also must be imperated.The author have collected a large amount literature about the GSM cellular system, the GSM network architecture, the GPRS architecture, the circuit switching, the packet switching technology, the packet switching technology, the integrated services digital switching technology, the NGN network, the soft switching, the IP technology and the Internet technology both home and abroad,and have studied, so on have a more comprehensive understanding on the main GPRS theory, the technical characteristics, the network structure, the system functions. Through the collection,read,contrast to the Huawei various types of PCU equipment structure, performance, technical, initially selected the new PCU device model for the transformation, and have made a argumentation on the feasibility and necessity about the implementation of the project, also have Identified the reconstruct scheme about the Ganzhou Unicorn’s GPRS network, organizated and implemented the whole process of the GPRS network transformation. After the transformation summaried the experience of the engineering practice, put forward the suggestions for the next expansion and improvement about the network.After the modification about the6BSC’s GPRS equipment, from the point of statistical result, each set of BSC’s busy uplink, downlink TBF establishment success rate is more than99%. Because the network’s capacity be released after the reform, so that the user experience was improved, the customer complaints was alse reduced. In the network function, the network structure was Simplified, the daily maintenance work also was reduced, realizing the cell data free maintenance.