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Technology in sector communication is growth rapidly, which is marked by the increasing number of facilities offered, for example the growth of data, voice and video communication. The technology that can answer these communication demands is Long Term Evolution Adavanced (LTE-A) technology. To optimize the quality by using a combination of frequencies on LTE-A. This research comparing results of non-Carrier Aggregation (Non-CA) and Carrier Aggregation (CA). The frequency band that use existing frequency one of cellular operator in Surakarta 1800MHz and the additional frequency for CA2100 MHz. The result shows signal level value is above th threshold -80 dB increasefrom 89.51 to 96.04%. The percentage of reviewed RSRP if the value is above threshold -105 dBm increased from 83% to 95.44%. the parameter of distribution SINR in percentage values are above threshold above 5dB increased from 47.22% to 69.67%. The value of the mean throughput increase from 25.41 Mbps be 37.31 Mbps, with target KPI 12 Mbps. The number of rejected user in the network decreased from 2.2% to 0.6%. Parameters that are reviewed in this research can meet the target KPI. [ABSTRACT FROM AUTHOR]

Nowadays, 4G LTE (Long Term Evolution) telecommunication technology that has spread throughout Indonesia is growing rapidly. However, the coverage of 4G LTE has not been implemented well in Indonesia, one of them is in Sragen. So to be able to increase the quality of 4G LTE network, it is necessary to optimize the coverage area of 4G LTE network in Sragen by using the physical tuning method, which is to adjust the antenna tilt, azimuth antenna, power. Key Performance Indicator is a reference to determine the performance of a network. The measured parameters are reference signal reception power (RSRP), reference signal reception quality (RSRQ), signal interference noise ratio (SINR). The results from the optimization are the percentage of RSRP was initial 45.87% to 75.58%, an increase of 29.72%. While the RSRQ value increased by 20.78%, with an initial value was 27.84% to 48.62%. SINR increased by 5.29% with an initial percentage was 4.87% to 10.16%. [ABSTRACT FROM AUTHOR]