Cisco Cisco ASR 5000 Administrator's Guide
HeNB Gateway in Wireless LTE Network
Product Description ▀
Cisco ASR 5x00 Home eNodeB Gateway Administration Guide ▄
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There is another deployment scenario for HeNBs where HeNB-GW is absent. In this deplyment, HeNBs connect
directly to highly scalable MMEs. This deplyment scenario is displayed in the following figure:
directly to highly scalable MMEs. This deplyment scenario is displayed in the following figure:
Figure 5.
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 offloaded to external security function node.
Communication between the HeNB and the HeNB GW is secured by a security Gateway (SeGW) function. The SeGW
function is optionally collocated or else offloaded 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:
access network. The HeNB access network includes the following functional entities:
Home eNodeB
A Home eNodeB (HeNB) is the a customer premise equipment that offers Uu interface to UE and S1 interface over
IPSec tunnel to HeNB-GW for accessing LTE Core Network in Femtocell access network.
IPSec tunnel to HeNB-GW for accessing LTE Core Network in Femtocell access network.
It also provides the support to HeNB registration and UE registration over S1 interface with the HeNB-GW. Apart from
these functions HeNB also supports functions as given below:
these functions HeNB also supports functions as given below: