A method and a device for the coding and/or decoding of an information
symbol for transmission over a transmission channel or a received signal
value is described and illustrated, whereby a channel symbol used for
coding is selected from at least two available channel symbols by means
of a pre-calculated expected received signal value. The pre-calculation
is achieved, based on the echo properties of the transmission channel and
transmission values already sent. A pre-coding method with low
receiver-side calculation requirement is thus prepared, whereby the
information symbol can be transmitted by means of various channel symbols
and thus various transmission values can also be transmitted. The
possible selections may be used for minimization of the transmission
energy and/or to achieve a minimal disturbance or even a constructive
effect through the inter-symbol interference occurring on transmission.