Cisco Cisco Packet Data Gateway (PDG)
scope of any protocol function associated to a non-UE-dedicated procedure lies between HeNB and HeNB-GW,
and/or between HeNB-GW and MME.
and/or between HeNB-GW and MME.
Figure 4: Control plane for S1-MME Interface for HeNB to MME with the HeNB-GW
Any protocol function associated to a UE-dedicated-procedure resides within the HeNB and the MME only.
Deployment Scenarios for HeNB Access Network
An HeNB-GW can be deployed to provide an alternate path for the data traffic. It holds capabilities to divert
the data traffic away from core and directly onto the Internet thus reducing the load on the core network.
the data traffic away from core and directly onto the Internet thus reducing the load on the core network.
There are following two variants of deploying an HeNB-GW solution according to the TR 23.830:
HeNB-GW Administration Guide, StarOS Release 19
5
HeNB Gateway in Wireless LTE Network
Deployment Scenarios for HeNB Access Network