The invention relates to a method for implementing a transceiver, in which method
radio-frequency signals are transmitted and received with a transceiver for communicating
information. A radio-frequency signal received at a receiving stage is subjected
to at least a first filtering step, in which a desired receiving signal is separated
from the signal with a filter. A signal to be transmitted at a transmission stage
is subjected to at least a second filtering step, in which a desired transmission
signal is separated from the signal with a filter, to be transmitted. In the method,
the same filter is used at least partly in said first and second filtering steps.
