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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The HeNB-GW may optionally terminate the user plane towards the HeNB and towards the S-GW, and provide a relay
function for relaying User Plane data between the HeNB and the S-GW.
function for relaying User Plane data between the HeNB and the S-GW.
Protocol Stacks for S1 Control Plane
The two figures below show the S1-MME protocol stacks with and without the HeNB-GW. When the HeNB-GW is not
present, all the S1 procedures are terminated at the HeNB and the MME.
present, all the S1 procedures are terminated at the HeNB and the MME.
Figure 3. Control plane for S1-MME Interface for HeNB to MME without the HeNB-GW
The HeNB-GW terminates the non-UE-dedicated procedures: both with the HeNB, and with the MME. The HeNB-GW
provides a relay function for relaying Control Plane data between the HeNB and the MME. The 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.
provides a relay function for relaying Control Plane data between the HeNB and the MME. The 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.