text: LTE White Paper 3GPP ссылка SAE (недоступная ссылка) 3GPP 23.401: General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access 3GPP 23.402: 3GPP System Architecture Evolution 3GPP LTE-SAE Overview, by Ulrich Barth (SAE в 2006) SAE and LTE white paper: Full Service Broadband Architecture (неопр.)