An inter system handovers in a mobile telecommunication system is performed when a dual mode user equipment (UE) covered by both GSM/GPRS network and UMTS network connects a dedicated channel and sets up a call in a BSS region where the GSM/GPRS provides coverage, and then moves to a UTRAN (UMTS Terrestrial...http://www.google.fr/patents/US20030139184?utm_source=gb-gplus-shareBrevet US20030139184 - Method for performing inter system handovers in mobile telecommunication system
Method for performing inter system handovers in mobile telecommunication system
Numéro de demande: 10/341,501 Numéro de publication: US 2003/0139184 A1 Date de dépôt: 13 janv. 2003 Brevet délivré: US6963745 ( Date de délivrance 8 nov. 2005)
