In Japan, E-UTRAN
will reach a market size of US$125.2 Thousand by the close of the analysis period.
E-UTRAN is a simple network of eNBs, its main function is to manage the Radio Resource Management (RRM) mechanism that is responsible for schedules, relay protocols, coding, handover, call admission control and power control.
 Group Radio Access Network Requirements for Evolved UTRA (EUTRA) and Evolved UTRAN (E-UTRAN), "3GPP, Tech.
The LTE-A network domain consists of the Evolved-Universal Terrestrial Radio Access Network (E-UTRAN) and Evolved Packet Core (EPC).
However, the scheme in  is used to the vertical handover process for 3GPP-WiMAX interworking architecture, which is not feasible to the horizontal handover within E-UTRAN in LTE-A networks.
 3rd Generation Partnership Project, "Technical Specification Group Services and System Aspects; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (Rel 14)," Tech.
LTE has two parts: the e-UTRAN
access network and the all-IP evolved packet core (EPC).
Ramalingam further added, “There are also enhancements introduced to individual protocols that include MAPS[TM] SIGTRAN Based Applications, MAPS[TM] GERAN and UTRAN Based Applications, MAPS[TM] E-UTRAN
and MAPS[TM] VoIP based Applications.
"MAPS[TM] 4G Lab System for LTE can be used to simulate both E-UTRAN
and EPC (Evolved Packet Core) allowing complete testing of the LTE network.”