The present invention relates to an apparatus and method for preventing unauthorized users from gaining access to a wireless network. A processor allows only data transmissions from the directions of the authorized users to access the network. Data transmissions from other directions are not allowed...http://www.google.es/patents/US7751799?utm_source=gb-gplus-sharePatente US7751799 - Method and apparatus for security in a wireless network
Method and apparatus for security in a wireless network