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Who's in AT&T's LTE Core?Who's in AT&T's LTE Core?

11:05 AM AlcaLu and Ericsson are AT&T's LTE radio access suppliers, but the core network vendors are not yet known

Michelle Donegan

February 10, 2010

1 Min Read
Who's in AT&T's LTE Core?

11:05 AM -- Alcatel-Lucent (NYSE: ALU) and Ericsson AB (Nasdaq: ERIC) have landed Long Term Evolution (LTE) radio access contracts at AT&T Inc. (NYSE: T). So, one of the many next questions is, who is supplying the core network elements -- that is, the Evolved Packet Core (EPC)? (See AT&T Picks AlcaLu, Ericsson for LTE.)

One part of the EPC will come from Ericsson, which is supplying AT&T with, not only LTE radio access equipment, but also a mobility management element (MME) and operating support systems, according to an Ericsson spokeswoman.

The MME, which controls mobility signaling, is one of the four network elements that make up the EPC -- the MME, Policy and Charging Rules Function (PCRF), the Serving Gateway, and the Packet Data Network (PDN) Gateway. (See Juniper Challenges Cisco in the Mobile Core, LTE Core Action Heats Up, and Core Network Challenges LTE Vendors.)

As for the other EPC elements, AT&T isn't saying anything about those suppliers today:

"We announced today Alcatel-Lucent and Ericsson as the LTE equipment providers for our Radio Access Network Domain, and we will continue to provide further information on our LTE plans as it becomes available," according to an AT&T spokeswoman.

— Michelle Donegan, European Editor, Unstrung

About the Author(s)

Michelle Donegan

Michelle Donegan is an independent technology writer who has covered the communications industry for the last 20 years on both sides of the Pond. Her career began in Chicago in 1993 when Telephony magazine launched an international title, aptly named Global Telephony. Since then, she has upped sticks (as they say) to the UK and has written for various publications including Communications Week International, Total Telecom and, most recently, Light Reading.  

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