Evolved Packet Core (EPC) is the IP-based core network defined by 3GPP in Rel-8 for use by LTE and other access technologies. The goal of EPC is to provide simplified all-IP core network architecture to efficiently give access to various services such as the ones provided in IMS.
EPC consists essentially of a Mobility Management Entity (MME), a Serving Gateway (S-GW) that interfaces with the E-UTRAN and a PDN Gateway (P-GW) that interfaces to external packet data networks. EPC for LTE networks were announced by numerous vendors beginning in February 2009, allowing operators to modernize their core data networks to support a wide variety of access types using a common core network.
EPC solutions typically include backhaul, network management solutions, video solutions that monetize LTE investment and a complete portfolio of professional services.
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