ANALISIS LAYANAN PAKET DATA SISTEM CDMA 2000-1X BERDASARKAN DATA DROP CALL DAN DATA DRIVE TEST

Abstract

The development of data access in mobile cellular technology is currently growing very rapidly with increasing information needs. CDMA is a multiple access technique that separates the conversations in the domain code. The use CDMA2000 1x technology allows customers to enjoy not only voice services but also high-speed data services with access speeds that can reach 153.6 Kbps. Quality system based on CDMA cellular system can be measured by looking at some of the network Quality of Service parameters. One of the QoS parameters of the drop call analysis through statistical data. It also can be used in the analysis of service quality through drive test data. By varying the optimization process, need to categorizing the stages of the optimization process based on the value of related parameters. The packet data service analysis is done by making simulation. The simulation consists of three main parts: simulation of drop call analysis, analysis of real drop call data and simulation of analysis drive test data. Several parameters are used to analyze the drop call such an error message TCH, no reverse received frames, Abis interface failure, A1 interface failure, PCF failure, hard handoff failure and other factors. Using several parameter including FFER (Forward Frame Error Rate), RSSI (Receive Signal Strength Indicator), Ec / Io, TxGa (Transmitter Gain Adjust), and TxPo (Transmitter Power) to simulate an analysis drive test data. The results show site will be required optimization if the value of the Call Drop Rate exceeds 1.5%. From some sites that are analyzed, Call Drop Rate of Telkom Flexi is not high except in the BTS Tembalang that is equal to 2.71%, 2.80%, 2:06% and 1.77%. Factor of drop call mostly due to the error message TCH or too many Erasure frames. Analysis of drive test results show that most factors that affect the poor quality of packet data services because of the interference factor. Keyword : CDMA, packet data, quality, drop call, drive test