HeNB-GW
HeNB Gateway
The HeNB-GW serves as a concentrator of large numbers of HeNB deployments, thus lightening connection requirements on the network. As such, HeNBs connect to the HeNB-GW via the S1 interface, with the HeNB-GW concatenating these links and connecting to the MME (Mobility Management Entity)/S-GW (Serving Gateway) also via the standard S1 interface.