| Mobile communication technology is it moves networking perfect and plan progressively to the third generation of stage. Becoming fiercer in the market competition of mobile communication trade, how to improve satisfaction of customers , raise the impression that the feeling to the network , improving the existing network maintenance level and optimizing quality, its benefit of full play that maximum, has already become the important subject of improving the management level of network maintenance.This text has introduced the summary , division of the regional frequency band and wireless theory that spread of GSM mobile communication system from the basic conception and operation principle of mobile communication at first. Have recommended the network current situation and regular GSM Network maintenance and optimizations of Shanghai UNICOM.Secondly in an all-round way, introduce GSM signalling course make procedure systematically. The characteristic of this text is to make from handover events which switch over the course analyses the impact on quality of the network of procedure that the angle starts with and studies signalling course to make. Recommend the thematic job used Ocean signalling course analyzer make operation method, "Call Analyzer" of appearance is it screens operation method to analyses software to make. Make data analysis to the letter of magnanimity, how to use the software is extremely important skillfully.The network NOKIA equipment the signalling course of handover events to make procedure talk the affair is lost than the influence of the index now to combine Shanghai UNICOM finally, found and solved traffic and lost it than the key factor with lower index, make the index of the network improve greatly, as a result the Drop calls of busy hours has reduced more than 2000 individually. |
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