FIELD: radio engineering.
SUBSTANCE: invention relates to cellular communication. In compliance with this invention, to authenticate and code in CDMA and GSM networks, jointly used coded data are processed so that mobile station, registered in GSM may transfer into and be authenticated in CDMA, as well as relay coded messages with no registration in CDMA. GSM subscriber authentication in CDMA is realised by Kc key replacement with SSD-A data and coding the message by replacing Kc-key with SSD-B data using CAVE algorithm.
EFFECT: one mobile station used in both GSM and CDMA.
17 cl, 15 dwg
