An information frame of a new format transmitted according to a radio link protocol (RLP), and a device and method for transmitting and receiving the information frame in a mobile communication system. The information frame is comprised of a plurality of consecutive multiplex frames each having a given...http://www.google.com/patents/US7483447?utm_source=gb-gplus-sharePatent US7483447 - Apparatus and method for exchanging variable-length data according to radio link protocol in mobile communication system