Apparatus, and associated method, for communicating a data block in a multi carrier modulation communication scheme together with an identification sequence superimposed thereon

Apparatus for a communication station operable pursuant to a Multi Carrier Modulation communication scheme, said apparatus comprising:

• a detector configured to detect a receive signal received at the communication station, the receive signal including an indication of a data block, altered by a scrambling sequence and an identifying sequence that identifies the scrambling sequence;
• and
• an identifier configured to identify the identifying sequence forming part of the receive signal.

A method for facilitating communication in a communication system operable pursuant to a Multi Carrier Modulation communication scheme, said method comprising the operations of:

• generating an altered data block of a selected power indicia responsive to an input data block;
• and
• combining together an indication of the altered data block with an identification sequence, the identification sequence identifying alteration of the input data to form the altered data block during said operation of generating.