Abstract: A model for the optimisation of the location and
configuration of
base stations in a UMTS network is described. The focus
is
primarily on modelling the configuration problem
sufficiently
accurate using mixed-integer variables and (essentially)
linear
constraints. These constraints reflect the limited
downlink code
capacity in each cell, the interference limitations for
successful
up- and downlink transmissions, the need for sufficiently
strong
(cell) pilot signals, and the potential gain for mobiles
from being
in soft(er) hand-over. It is also explained how to use
the model as
a basis for rating network configurations.
Keywords: UMTS,
radio interface,
network planning,
configuration,
perfect power control,
mathematical model,
mixed integer programming,
MOMENTUM,
IST-2000-28088,
Key Action IV,
Action Line IV.4.1
MSC: 90B18, 90C11