An optical reproducing method using an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction. A communication network in accordance with the present invention includes a plurality of portable wireless telephone stations; a plurality of wired telephone stations; a plurality of local exchange carriers ; at least one mobile switching center a mobile base antenna tower. performing block unit modulating processing and block repeat modulating processing on the frequency domain data, then mapping the block units to assigned time-frequency positions; C. If the distance is above the specification limits, the PHY checks to see if the companion PHY is similarly enabled, and if so, switches to a long-range signaling method.