The object of the invention is a method for determining channel information in
a cellular system, where user information is transmitted in information frames
transmitted by the base station of the current cell, and in which method neighbor
cell base station information is received (25, 26, 32, 43, 44, 53, 55, 57)
for the synchronizing to the neighbor cell base station. In a method according
to the invention the Base Station Identity Code (BSIC) information is received
and examined (53, 55, 57) only outside the TDMA frames used to transmit
the information. Said code information is stored in the memory of the mobile station
for the period of the TDMA frames used to transmit information. The method is also
advantageously used in a Wireless Local Loop terminal utilizing HSCSD protocol
for determining and storing channel information. When the method according to the
invention is used a WLL terminal needs no extra frequency synthesizer for performing
the neighbor cell monitoring.
