d by way of the wireless interface 4 a to the base device 4 a storage r 3 of the identification number and of the join key jk is performed by the base device 4 the base device 4 also returns a pre login signal containing the information that the pre registration was successful to the wireless communication device 2 this pre login procedure is observed observation b and analyzed by the wireless authentication device 1 depending on the result of the analysis a decision is then taken as to whether a piece of authentication information ai is conveyed to the wireless communication device 2 in the case of a positive result of the analysis a a piece of authentication information ai is conveyed to the wireless communication device 2 the latter in turn conveys the received piece of authentication information and the identification number of the wireless communication device 2 by way of the sensor nodes 3 b 3 a 3 c 3 d and the wireless interface 4 a to the base device 4 at the base device 4 a registration r 4 takes place wherein the piece of authentication information ai is checked and in the case of a positive check result the identification number of the wireless communication device 2 and the join key jk are entered in a corresponding join table in accordance with the description for the preceding figures furthermore the base device 4 returns appropriate information to the wireless communication device 2 to the effect that a registration of the wireless communication device 2 at the base device 4 was successful although aspects of the present invention have been described by means of the aforementioned exemplary embodiments it is not restricted thereto but may be modified in various ways it is.