Table 6.1: Advantages and Disadvantages of different redeployment (re
farming) options
Method
Advantages
Disadvantages
Migration by
No requirement for
Problem as existing licences are
expiry of
regulatory intervention
awarded for 20 years.
current licence
and end of
lifetime of
equipment
Forced
Enables existing
It may not be possible to migrate
migration to
equipment to remain in all the services to spare
frequency
use, minimising cost spectrum within the tuning range.
bands within
and disruption to
Spectrum within the tuning range
tuning range of
existing user. This has may not be the ideal long term
equipment used been a feasible solution choice as it may subsequently be
for military services due required to support ongoing
to the wide tuning growth in demand for new
ranges.
services.
Forced
May provide a more This can be technically and
migration into
satisfactory long term economically difficult to
other frequency solution than migration implement. In some cases there
bands
within tuning ranges
will be no suitable alternative
spectrum and in others it will
require new costly infrastructure.
It may also require a longer
transition period that does not fit
with the need to allow early
release of spectrum.
Forced use of
This could release
Insufficient spectrum may be
more spectrally limited spectrum by released. May lead to a
efficient
using equipment that is temporary increase in the
equipment
more spectrally efficient spectrum required by existing
in part of the available operators if a transition period is
band.
required (i.e. both technologies
need to operate simultaneously)
There is another issue that needs to be considered, which is the cost of
redeployment. The main options are:
The incumbent operator or user pays for the redeployment of his
own system
The new entrant pays
Payment from a centrally managed redeployment fund
A combination of the above
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