The invention concerns a method for distributing data on an OFDM
time-frequency grid for data transmission from and to mobile terminals in
a mobile network accommodating the use of pilot subgrids suitable for
channel estimation, whereby said OFDM time-frequency grid comprises
different frequency patterns, subcarrier frequencies of said different
frequency patterns are interleaved, in at least one interleaving
interval, as many cyclic shifts of the respective part of the frequency
patterns are performed, rotating the allocation of the subcarrier
frequencies to the different frequency patterns, as must be performed so
that the distribution of the pilot subgrids over the frequency patterns
leads for each pilot subgrid to no more than a maximum defined number of
pilots that lie within each frequency pattern, a base transceiver
station, a base station controller and a mobile network therefor.