& cplSiteName &

Evolved Packet Core (EPC)

Dan Jones

The Evolved Packet Core (EPC) architecture will support user mobility, wireless data connections, routing, and authentication in new Long Term Evolution (LTE). The technology is supposed to supplant currently used network elements in GSM-based 3G networks such as the Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN), while supporting the flat IP network architecture that is LTE.

This move to a simpler flat architecture is a key difference between LTE and earlier 3G networks, which comprised circuit-switched and packet elements for voice and data respectively. The flat architecture should cut the raw cost of delivering data across the network once capex costs have been recouped but requires the core network to be much smarter about how it prioritizes voice, video, and data traffic, since everything is sent via one big pipe.

The EPC proper is made up of the Mobility Management Entity (MME), which manages mobile device connection to LTE and other mobile networks, the Serving Gateway (SGW), the element that routes the data packet; and the PDN Gateway (PGW), which connects the mobile user to external packet networks. Operators and vendors are now examining using EPC as a common core for 2G, 3G, and LTE. (See 3G Fuels Mobile Packet Core.)

SGSN vendors include Alcatel-Lucent (NYSE: ALU), Cisco Systems Inc. (Nasdaq: CSCO), Ericsson AB (Nasdaq: ERIC), Huawei Technologies Co. Ltd. , Nokia Networks , and ZTE Corp. (Shenzhen: 000063; Hong Kong: 0763).

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
Featured Video
From The Founder
Ngena's global 'network of networks' solves a problem that the telecom vendors promised us would never exist. That doesn't mean its new service isn't a really good idea.
Flash Poll
Upcoming Live Events
March 20-22, 2018, Denver Marriott Tech Center
March 22, 2018, Denver, Colorado | Denver Marriott Tech Center
March 28, 2018, Kansas City Convention Center
April 4, 2018, The Westin Dallas Downtown, Dallas
April 9, 2018, Las Vegas Convention Center
May 14-16, 2018, Austin Convention Center
May 14, 2018, Brazos Hall, Austin, Texas
September 24-26, 2018, Westin Westminster, Denver
October 9, 2018, The Westin Times Square, New York
October 23, 2018, Georgia World Congress Centre, Atlanta, GA
November 7-8, 2018, London, United Kingdom
November 8, 2018, The Montcalm by Marble Arch, London
November 15, 2018, The Westin Times Square, New York
December 4-6, 2018, Lisbon, Portugal
All Upcoming Live Events
Hot Topics
Dell CTO: Public Cloud Is 'Way More Expensive Than Buying From Us'
Mitch Wagner, Editor, Enterprise Cloud, 3/19/2018
Eurobites: Cambridge Analytica Feels the Heat
Paul Rainford, Assistant Editor, Europe, 3/20/2018
Is Business Voice Rapidly Fading?
Carol Wilson, Editor-at-large, 3/15/2018
Eurobites: BT Hires Sherman as Strategy Tank
Paul Rainford, Assistant Editor, Europe, 3/14/2018
Animals with Phones
Live Digital Audio

A CSP's digital transformation involves so much more than technology. Crucial – and often most challenging – is the cultural transformation that goes along with it. As Sigma's Chief Technology Officer, Catherine Michel has extensive experience with technology as she leads the company's entire product portfolio and strategy. But she's also no stranger to merging technology and culture, having taken a company — Tribold — from inception to acquisition (by Sigma in 2013), and she continues to advise service providers on how to drive their own transformations. This impressive female leader and vocal advocate for other women in the industry will join Women in Comms for a live radio show to discuss all things digital transformation, including the cultural transformation that goes along with it.

Like Us on Facebook
Twitter Feed