A mobility support element (MSC/VLR; SGSN, GGSN) for a cellular radio network supporting circuit-switched and packet-switched connections to/from a mobile station (MS). For each mobile station (MS), there is a set (LSA1, LSA2) of special cells (C1-C3, C9, C10) providing special service. A radio control...http://www.google.fr/patents/US6920317?utm_source=gb-gplus-shareBrevet US6920317 - Charging of subscribers with localized service areas in a mobile telecommunications network
Charging of subscribers with localized service areas in a mobile ...