Cisco Cisco Packet Data Gateway (PDG)
HeNB Gateway in Wireless LTE Network
Features and Functionality - Base Software ▀
HeNB-GW Administration Guide, StarOS Release 18 ▄
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s1ap-reset/partial-reset messages from HeNBGW
If s1ap-reset/partial-reset messages from HeNBGW is enabled HeNBGW will forward partial or full s1-reset messages
to Henb or MME and delete UE context. If it is disabled it will delete UE context and drop the message.
to Henb or MME and delete UE context. If it is disabled it will delete UE context and drop the message.
Partial Reset message from MME
Delete all the UE context specified with the s1-reset message.
Update mme_ue_s1ap IDs with local mme_ue_s1ap IDs with in the message and forwards to the corresponding
HeNBs.
Full Reset message from HENB
Deletes all the UEs corresponding to HeNB.
Sends Partial RESET message with the list of UEs corresponding to the HeNB and forwards to the associated
MMEs.
Partial Reset messages from HeNB
Deletes all the UE context specified with the s1-reset messages.
Update enb_ue_s1ap IDs with local enb_ue_s1ap IDs with in the messages and forwards to the corresponding
MMEs.
Full/Partial Reset messages generated towards HENB
If one of the MME connections goes down, deletes all the UEs associated to the MME.
Sends Full/Partial RESET messages with the list of UEs associate to the MME and forwards to the
corresponding HeNBs.
Full/Partial Reset messages generated towards MME
If one of the HeNB association goes down, deletes all the UEs corresponding to HeNB.
Sends Partial RESET messages with the list of UEs corresponding to the HeNB and forwards to the associated
MMEs.
X2 Proxy Gateway support
As part of E-UTRAN architecture a X2 Gateways are deployed to allow the indirect X2-C interface between (H)eNBS
The X2 GW hosts the following functions:
Routing the X2AP X2 MESSAGE TRANSFER message to target eNB or HeNB based on the routing
information received in the X2AP X2 MESSAGE TRANSFER message.
Informing the relevant (H)eNBs upon detecting that the signalling (i.e. SCTP) connection to a (H)eNB is
unavailable. The relevant (H)eNBs are the ones which had an “X2AP association” with this (H)eNB via the X2
GW when the signalling connection became unavailable.
GW when the signalling connection became unavailable.
Mapping the TNL address(es) of a (H)eNB to its corresponding Global (H)eNB ID and maintaining the
association.
This section describes the EUTRAN Architecture from 3GPP 36.300.