To Promot GSM Network Speech Service Quality Under The900M/1800M Dual Frequency Network Model

With the rapid development of voice and data services, the traditional900M wireless communication system which in solving the depth of coverage and capacity of business has been overwhelmed. At the same time, the network bottom noise substantially uplift is following the frequency resource limiting. In the high load condition, the gradually outstanding contradiction is growing in the network quality and network capacity. Conversely, the utilization of1800M communication frequency resource is not sufficient. The primary KPI quota, the system noise and customer perception quota which are better than900M network. Therefore, the advantage application of1800M,the coordination of900M and1800M network multiplexing relationship which can sharply improve the network quality. In the expanding of wireless network circumstances, the voice quality influence should not be ignored by the network interference,high data service and so on. This paper mainly introduces that the worsening reasons of voice quality in the GSM900M/1800M dual band network mode, an overview of new network requirements in the dual-band network, and forming a special subject research base on the Tianjin mobile voice quality improvement of existing GSM900M/1800M dual-band network. Through the analysis of several impact voice quality problems and combined with daily work, gives the detailed optimization process and solution method. Based on the GSM900M/1800M dual-band network optimization and adjustment, continuous improve the network quality, enhance customer call perception, ensure that the leading edge of Tianjin Mobile GSM network.