Abstract: The invention discloses a radio network for radio communication in an enclosed environment such as a tunnel or an in-house environment including a first head end station (1) and cascaded bi-directional repeaters (4, 5, 10) connected via a radiation cable (3). In case of a break of the radiation cable, a second redundant head end station (2) is connected to the radiating cable via switch (30) and to the first head end station via a second connection (11) and the repeaters behind a disconnection point of the radiating cable (3) interchange their downlink and uplink transmission directions, such that the radio communication is possible in front and behind the disconnection point. Furthermore, the repeaters are adapted to detect a malfunction of themselves and to bypass themselves in reaction to the detection of a malfunction.