A method of assigning a unique IP address to a user of a mobile communication device in an OBS network allows for the dynamic assignment of IP addresses to users entering the OBS network. The OBS network includes a plurality of interconnected OBSs where each of the OBSs includes a user database including...http://www.google.com/patents/US6801941?utm_source=gb-gplus-sharePatent US6801941 - Dynamic wireless internet address assignment scheme with authorization