The present invention relates to the field of mobile communication, including method, apparatus and system for implementing IuUp/NBUP procedure control. The method includes parsing a received UP frame; generating a control message based on a value obtained from the parsing, and buffering the control...http://www.google.com/patents/US20070153686?utm_source=gb-gplus-sharePatent US20070153686 - Method, apparatus and system for implementing IuUP/NBUP procedure control