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SMEC's LTE Femto Gateway with X2 Broker - Facilitating instant mass deployment of LTE femtocells in existing LTE infrastructure
March 14, 2016 | By Y.C. Lee (www.esmec.com), Dr. Harrison Jangwoo Son (tech@netmanias.com)
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Comments (5)
박수빈 2016-03-18 15:12:40

좋은 자료 감사합니다.


Salvador (Sistelbanda) via LinkedIn 2016-04-04 17:27:44

I have one question, which is the difference between the X2 Broker and the standard X2-GW defined by 3GPP Rel12?

손장우 2016-04-09 17:45:10

About your question on the difference between X2 broker and X2-GW, please see "[Contribution] SMEC X2 Broker vs. X2GW" written by the white paper author.

Salvador (Sistelbanda) via LinkedIn 2016-04-18 16:39:14

I prefer the standardised X2GW. The Broker version has to be able to decode all X2 messages in order to send them to the target. New messages implies a Broker update while it is transparent for the X2GW. Also when a HeNB is disconnected, all its peers receive a notification via X2GW. The Broker don't have this functionality.

SMEC 2016-04-18 16:39:42

As you mentioned, in technical aspect "standard X2GW feature (Rel.12)" can provide more efficient way to process/transmit X2 messages between macro and home eNB. 
But in practical aspect, most of major macro vendors and HeNB vendors do not have clear roadmap of development for X2-C interface (X2GW interworking).
Furthermore, they don't have detailed migration/upgrade plan for existing, already deployed, Rel 9/10/11 macro/HeNBs in commercial networks. 
As a practical approach, we would like to suggest mobile operators deploy flexible HeNB GW which supports X2 service broker (for Rel 8~11 MeNB/HeNB) and X2GW (for Rel 12 and above) feature in a single system, to interwork with MeNB/HeNBs from multiple vendors with various release versions. 

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