Manual

There is another deployment scenario for HeNBs where HeNB-GW is absent. In this deployment, HeNBs
connect directly to highly scalable MMEs. This deployment scenario is displayed in the following figure:
Figure 7: Without HeNB-GW
Cisco's LTE Femtocell network solution focuses on Variant 1 where HeNB-GW is mandatory for HeNBs to
connect. Communication between the HeNB and the HeNB GW is secured by a security Gateway (SeGW)
function. The SeGW function is optionally collocated or else off-loaded to external security function node.
HeNB Access Network Elements
This section provides the brief description and functionality of various network elements involved in the LTE
Femtocell access network. The HeNB access network includes the following functional entities:
•
Home eNodeB, on page 9
•
Security Gateway (SeGW), on page 9
•
HeNB Gateway (HeNB-GW), on page 9
•
HeNB Management System (HeMS), on page 10
•
CSG List Server, on page 10
HeNB-GW Administration Guide, StarOS Release 19
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HeNB Gateway in Wireless LTE Network
HeNB Access Network Elements