Abstract: The invention relates to a door assembly (1) comprising a door frame (4), a door leaf (6), and a locking system (21) having a door lock (22) and having a drive assembly (25) with an electrically driven drive unit (26) and with an electrical energy source (27). The door lock (22) has a lock case (23) and a locking and/or blocking mechanism (24). The electrically driven drive unit (26), as viewed in the direction of the door leaf thickness (16), is arranged laterally next to and either directly adjacent to the lock case (23) or in the region of a door leaf surface (14, 15) on the door leaf (6), and has a mechanical drive connection with the locking and/or blocking mechanism (24) of the door lock (22).

Abstract: A method for establishing and operating a wireless, packet switching data transmission network can be performed by a network in which: an omnidirectional module sends request information containing the station number of a first radio station to other radio stations in the range of reception thereof after having switched on said first radio station, and in which the radio stations receiving the request information send response information containing their respective station numbers to the first radio station, and in which the first radio station sends connection requests to those radio stations from which it has received response information, and in which the first radio station uses its directional radio module to establish a directional radio link for transmitting data packets in the mesh network to the directional radio module of at least one second radio station which has responded positively to the connection request.