The initial 3G network rollout (on existing 2G sites) provides operators coverage and limited capacity to provide data. While voice coverage is fixed and covers a specific area, a BTS/Node-B (3G BTS) has limited data capacity based on the technology (2G or 3G), amount of spectrum, bandwidth of spectrum, etc. Unlike for voice, coverage shrinks (or quality deteriorates) as data consumption from a certain BTS/Node-B increases. Hence, operators need to install another BTS/Node-B to maintain the same coverage and quality.
Telcos are Expanding to new towers in order to maintain data coverage and quality due to the non-scalability of data, relatively limited
spectrum availability with Indian operators and the 3G network?s being on the relatively inferior 2100 MHz band.
