FIELD: information technology.
SUBSTANCE: base station, which sends a synchronisation signal over a synchronisation channel using the system frequency band which is less than the maximum system frequency band, in a radio communication system which supports use of multiple frequency bands, has a multiplexing unit configured to multiplex the synchronisation channel and a channel other than the synchronisation channel, based on reception filter characteristic used in the mobile station. The multiplexing unit can accommodate the synchronisation channel and the channel other than the synchronisation channel at continuous subcarriers. In another version, the multiplexing unit can allocate a protective band or a cyclic prefix for the transition band of the reception filter.
EFFECT: high accuracy of detecting signals.
2 cl, 7 dwg
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