(57) In order to perform, according to a received signal (r), a channel-estimation procedure
and a cell-search procedure in cellular communication systems, there are executed
at least one first operation of correlation of said received signal (r) with secondary
synchronization codes (SSC) and a second operation of correlation of said received
signal (r) with known midamble codes (mid, MPL, MPS), whilst said channel-estimation procedure comprises a third operation of
correlation of at least part of said received signal (r) with known midamble codes
(mid, MPL, MPS), said first, second, and third correlation operation being executed by
sending at least part (emidamble) of said received signal (r) to an input of a correlation bank (111, 151; 203, 253;
303). There are envisaged the operations of:
- sending, in a first time interval, the received signal (r) to said correlation bank
(303) for executing the first operation of correlation of said received signal (r)
with secondary synchronization codes (SSC);
- sending, in a second time interval, at least part (emidamble) of said received signal (r) to said same correlation bank (303) for executing the
second operation of correlation of said received signal (r) with known midamble codes
(mid, MPL, MPS);
- sending, in a second time interval, the received signal (r) to said same correlation
bank (303) for executing the third operation of correlation of at least part (emidamble) of said received signal (r) with known midamble codes (mid, MPL, MPS).
Preferential application is in mobile communication systems based upon standards such
as UMTS, CDMA2000, IS95 or WBCDMA.
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