The LTE technology is expected to offer a number of distinct
advantages over other wireless technologies. Scarcity of spectrum had
been encourage regulator and provider to refarmed the spectrum.
Refarming of the spectrum associated with the reuse of existing 2G or
3G spectrum licenses to launch new technologies such as LTE.
This research analyze technically on several scenarios of the
spectrum such as allocated frequency spectrum to existing 2G dan 3G
frequency to be used for LTE in Indonesia case study for Telkomsel
provider. As a result from the simulation, LTE in 900MHz has the best
performance when deployed in 10 MHz, it can be seen in terms of
SINR, bit rate and capacity based on dropped users while interferred by
LTE itself. Basically, the performance of 2100 MHz is the best value
while LTE is interferred by other systems such as GMS and UMTS in
terms of SINR, bit rate and capacity based on dropped users
Spectrum refarming for LTE in 900MHz, 1800 MHz or 2100
MHz frequencies band is considered to be triggered the potential
degradation of existing services such as GSM and UMTS. The
simulation’s results decribe that in those frequencies band options, LTE
can well coexist with other technologies in the ecosystem such as GSM
and UMTS. Overall simulation’s results show that at 1800 MHz while
LTE is interferred by LTE and others such as GSM and UMTS, the
performance is lower than other frequencies, so the best option is at 900
MHz or 2100 MHz of the frequencies.